Trial Outcomes & Findings for Using the Cholinergic Anti-Inflammatory Pathway to Treat Systemic Lupus Musculoskeletal Pain (NCT NCT02822989)

NCT ID: NCT02822989

Last Updated: 2026-07-08

Results Overview

Patients rate their musculoskeletal pain by making a mark on a 10cm anchored Visual Analog Scale where 0=no musculoskeletal pain and 10 =worst possible musculoskeletal pain.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

19 participants

Primary outcome timeframe

5 days

Results posted on

2026-07-08

Participant Flow

Subjects were recruited from local clinics, word of mouth or from the ClinicalTrials.gov site.

No subjects were excluded from the study before assignment to a treatment group.

Participant milestones

Participant milestones
Measure
Vagus Nerve Stimulation
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Overall Study
STARTED
13
6
Overall Study
COMPLETED
12
6
Overall Study
NOT COMPLETED
1
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Vagus Nerve Stimulation
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Overall Study
Subject didn't complete 4 required stimulations secondary to a URI during influenza season.
1
0

Baseline Characteristics

Using the Cholinergic Anti-Inflammatory Pathway to Treat Systemic Lupus Musculoskeletal Pain

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Total
n=18 Participants
Total of all reporting groups
Age, Continuous
45.7 years
STANDARD_DEVIATION 11.7 • n=9 Participants
54.2 years
STANDARD_DEVIATION 15.3 • n=27 Participants
48.5 years
STANDARD_DEVIATION 12.9 • n=267 Participants
Sex: Female, Male
Female
12 Participants
n=9 Participants
6 Participants
n=27 Participants
18 Participants
n=267 Participants
Sex: Female, Male
Male
0 Participants
n=9 Participants
0 Participants
n=27 Participants
0 Participants
n=267 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=9 Participants
0 Participants
n=27 Participants
0 Participants
n=267 Participants
Race (NIH/OMB)
Asian
0 Participants
n=9 Participants
0 Participants
n=27 Participants
0 Participants
n=267 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=9 Participants
0 Participants
n=27 Participants
0 Participants
n=267 Participants
Race (NIH/OMB)
Black or African American
4 Participants
n=9 Participants
3 Participants
n=27 Participants
7 Participants
n=267 Participants
Race (NIH/OMB)
White
7 Participants
n=9 Participants
3 Participants
n=27 Participants
10 Participants
n=267 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=9 Participants
0 Participants
n=27 Participants
1 Participants
n=267 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=9 Participants
0 Participants
n=27 Participants
0 Participants
n=267 Participants
Region of Enrollment
United States
12 Participants
n=9 Participants
6 Participants
n=27 Participants
18 Participants
n=267 Participants
Pain
6.7 cm
STANDARD_DEVIATION 1.0 • n=9 Participants
5.6 cm
STANDARD_DEVIATION 1.5 • n=27 Participants
6.3 cm
STANDARD_DEVIATION 1.2 • n=267 Participants
Fatigue
23.0 units on a scale
STANDARD_DEVIATION 9.1 • n=9 Participants
15.8 units on a scale
STANDARD_DEVIATION 5.4 • n=27 Participants
20.6 units on a scale
STANDARD_DEVIATION 7.9 • n=267 Participants
Tender joints
7 Tender joints per subject
STANDARD_DEVIATION 8.7 • n=9 Participants
13.3 Tender joints per subject
STANDARD_DEVIATION 8.9 • n=27 Participants
9.1 Tender joints per subject
STANDARD_DEVIATION 8.8 • n=267 Participants
Swollen joints
2 Swollen joints per subject
STANDARD_DEVIATION 2.2 • n=9 Participants
4.8 Swollen joints per subject
STANDARD_DEVIATION 4.1 • n=27 Participants
2.9 Swollen joints per subject
STANDARD_DEVIATION 2.8 • n=267 Participants

PRIMARY outcome

Timeframe: 5 days

Patients rate their musculoskeletal pain by making a mark on a 10cm anchored Visual Analog Scale where 0=no musculoskeletal pain and 10 =worst possible musculoskeletal pain.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Change in Musculoskeletal Pain From Baseline.
-5.00 units on a scale
Interval -5.8 to -3.1
0.10 units on a scale
Interval -10.0 to 1.0

PRIMARY outcome

Timeframe: 12 days

The percentage of participants with grade 2 or higher treatment emergent adverse events will be assessed using the NCI-CTAEversion4.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=13 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Percentage of Subjects With Treatment Emergent Adverse Events.
1 Participants
0.00 Participants

SECONDARY outcome

Timeframe: 12 days

Patients rate their musculoskeletal pain by making a mark on a 10cm anchored Visual Analog Scale where 0=no musculoskeletal pain and 10 =worst possible musculoskeletal pain.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Change in Musculoskeletal Pain From Baseline
-5.35 units on a scale
Interval -5.8 to -1.45
.15 units on a scale
Interval -0.6 to 0.7

SECONDARY outcome

Timeframe: 5 days

Change from baseline fatigue will be measured using the FACIT F (Functional Assessment of Chronic Illness Therapy) questionnaire. The score ranges from 0 to 52, a higher score indicates less fatigue.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Fatigue
11.00 units on a scale
Interval 4.5 to 16.0
0.00 units on a scale
Interval -2.0 to 1.0

SECONDARY outcome

Timeframe: 12 days

Change from baseline fatigue will be measured using the FACIT F (Functional Assessment of Chronic Illness Therapy) questionnaire. The score ranges from 0 to 52, a higher score indicates less fatigue.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Fatigue
12.00 units on a scale
Interval 5.5 to 18.25
-2.00 units on a scale
Interval -3.0 to 1.0

SECONDARY outcome

Timeframe: 5 days

The percentage of tender joints reduced from baseline assessed by an investigator upon examining 68 potential tender joints.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Tender Joint Reduction
100.0 percentage of tender joints
Interval 100.0 to 100.0
5.3 percentage of tender joints
Interval -11.1 to 80.0

SECONDARY outcome

Timeframe: 12 days

The percentage of tender joints reduced from baseline assessed by an investigator upon examining 68 potential tender joints.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Tender Joint Reduction
98.5 percentage of tender joints
Interval 50.0 to 100.0
10.0 percentage of tender joints
Interval 0.0 to 34.6

SECONDARY outcome

Timeframe: 5 days

The percentage of swollen joints reduced from baseline assessed by an investigator upon examining 66 potential swollen joints. Data shown for seven taVNS and five SS subjects with swollen joints at baseline.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=7 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=5 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Swollen Joint Count Reduction
100.0 percentage of swollen joints reduced
Interval 100.0 to 100.0
9.09 percentage of swollen joints reduced
Interval -8.33 to 57.15

SECONDARY outcome

Timeframe: 12 days

The percentage of swollen joints reduced from baseline assessed by an investigator upon examining 66 potential swollen joints. Data shown for seven taVNS and five SS subjects with swollen joints at baseline.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=7 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=5 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Swollen Joint Count Reduction
100.0 percentage of swollen joints reduced
Interval 80.0 to 100.0
14.29 percentage of swollen joints reduced
Interval -100.0 to 59.09

SECONDARY outcome

Timeframe: 5 days

Change in PGA from baseline, an anchored visual analog scale.ranging from 0 to 3 with higher scores signifying higher disease activity.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Physician Global Assessment of Disease Activity (PGA)
-0.51 units on a scale (0-3)
Interval -0.99 to -0.3
0.04 units on a scale (0-3)
Interval -0.06 to 0.12

SECONDARY outcome

Timeframe: 12 days

Change in PGA from baseline, an anchored visual analog scale.ranging from 0 to 3 with higher scores signifying higher disease activity.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Physician Global Assessment of Disease Activity (PGA)
-0.50 units on a scale (0-3)
Interval -0.84 to -0.08
0.03 units on a scale (0-3)
Interval 0.03 to 0.12

SECONDARY outcome

Timeframe: 5 days

Change in Patient Global Assessment of disease (PtGA) from baseline. This measure is a 10 cm visual analog scale (0-10); higher scores indicate a higher patient assessment of their disease activity.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Patient Global Assessment of Disease (PtGA)
-22.50 units on a scale (mm)
Interval -46.5 to -2.5
4.00 units on a scale (mm)
Interval -2.0 to 9.0

SECONDARY outcome

Timeframe: 12 days

Population: -(-to -) -(-to )

Change in Patient Global Assessment of disease (PtGA) from baseline. This measure is a 10 cm visual analog scale (0-10); higher scores indicate a higher patient assessment of their disease activity.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Patient Global Assessment of Disease (PtGA)
-18.50 units on a scale (mm)
Interval -64.0 to -2.0
-0.52 units on a scale (mm)
Interval -16.0 to 9.0

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 days

Population: 0.00(0.00,) (-,-0.00)

Change from baseline of CRP levels in patient serum.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
CRP
0.00 mg/dL
Interval -0.2 to 0.0
0.05 mg/dL
Interval -0.1 to 0.15

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 days

Population: 0.00(- ,0.00) (-,

Change from baseline of CRP levels in patient serum.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
CRP
0.00 mg/dL
Interval -0.2 to 0.0
-0.05 mg/dL
Interval -0.23 to 0.08

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 days

Change from baseline of IFNα levels an inflammatory cytokine in patient serum.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
IFNα
0.0 pg/ml
Interval 0.0 to 0.0
0.12 pg/ml
Interval -0.12 to 1.1

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 days

Change from baseline of IFNα levels an inflammatory cytokine in patient serum.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
IFNα
0.00 pg/ml
Interval -0.01 to 0.0
0.25 pg/ml
Interval 0.0 to 1.0

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 days

Change from baseline of Il-6 levels in patient sera

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Il-6
-0.39 pg/ml
Interval -2.89 to -0.03
0.17 pg/ml
Interval -3.35 to 2.6

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 days

Change from baseline of Il-6 levels in patient sera.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Il-6
-0.17 pg/ml
Interval -3.13 to 0.67
-0.20 pg/ml
Interval -3.35 to 0.25

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 days

Change from baseline of levels of IL-1β, an inflammatory cytokine in patient serum.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
IL-1β
-0.01 pg/ml
Interval -0.4 to 0.2
-0.01 pg/ml
Interval -0.02 to 0.02

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 days

Change from baseline of levels of IL-1β, an inflammatory cytokine in patient serum.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
IL-1β
-0.01 pg/ml
Interval -0.04 to 0.0
-0.04 pg/ml
Interval -0.05 to 0.04

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 days

Change from baseline of TNF levels, an inflammatory cytokine in patient serum.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
TNF
-0.05 pg/ml
Interval -0.25 to 0.12
0.00 pg/ml
Interval -0.8 to 0.2

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 days

Change from baseline of TNF levels, an inflammatory cytokine in patient serum.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
TNF
-0.05 pg/ml
Interval -0.25 to 0.12
-0.05 pg/ml
Interval -0.2 to 0.2

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 days

Change from baseline of IL-10 levels in patient serum.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
IL-10
0.05 pg/ml
Interval -0.1 to 1.1
-0.08 pg/ml
Interval -0.16 to 0.3

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 days

Change from baseline of IL-10 levels in patient serum.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
IL-10
0.12 pg/ml
Interval -0.17 to 0.23
0.04 pg/ml
Interval -0.1 to 0.4

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 days

Change from baseline of Il-1 RA levels in patient sera.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
IL1-RA
-0.06 pg/ml
Interval -1.73 to 0.66
2.92 pg/ml
Interval -2.63 to 10.3

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 days

Change from baseline of Il-1 RA levels in patient sera.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
IL-1 RA
0.41 pg/ml
Interval -10.68 to 1.73
-0.39 pg/ml
Interval -2.73 to 2.73

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 days

Change from baseline of Il-18 levels in patient sera.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Il-18
0.71 pg/ml
Interval -0.23 to 8.2
-0.21 pg/ml
Interval -2.47 to 0.92

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 days

Change from baseline of Il-18 levels in patient sera.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Il-18
-0.55 pg/ml
Interval -2.98 to 0.48
0.10 pg/ml
Interval -9.37 to 1.21

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 days

Change from baseline of serum levels of IL-8

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
IL-8
-0.21 pg/ml
Interval -2.25 to -0.01
0.77 pg/ml
Interval -1.1 to 1.8

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 days

Population: -(-to ) -(-to )

Change from baseline of serum levels of IL-8

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
IL-8
-0.17 pg/ml
Interval -2.54 to 0.45
-0.20 pg/ml
Interval -2.8 to 0.1

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 days

Change from baseline of plasma levels of substance P.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Substance P
-2.76 pg/ml
Interval -4.79 to 0.94
0.09 pg/ml
Interval -5.57 to 4.48

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 days

Change from baseline of plasma levels of substance P.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Substance P
4.90 pg/ml
Interval -2.41 to 8.23
5.08 pg/ml
Interval 0.24 to 9.98

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 days

Change from baseline of plasma levels of Neuropeptide Y.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Neuropeptide Y
0.30 pg/ml
Interval -6.05 to 5.2
2.0 pg/ml
Interval -1.38 to 14.98

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 days

Change from baseline of plasma levels of Neuropeptide Y.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Neuropeptide Y
-0.80 pg/ml
Interval -7.43 to 2.28
-2.25 pg/ml
Interval -4.38 to 5.48

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 days

Change from baseline of plasma levels of CGRP.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Calcitonin Gene-Related Peptide (CGRP)
0.00 pg/ml
Interval -2.0 to 4.7
0.00 pg/ml
Interval -1.98 to 2.4

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 days

Change from baseline of plasma levels of CGRP.

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Calcitonin Gene-Related Peptide (CGRP)
-0.70 pg/ml
Interval -17.15 to 0.83
0.00 pg/ml
Interval -1.68 to 0.99

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 days

Change from baseline of serum levels of kynurenine

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Kynurenine
-0.02 µM
Interval -0.35 to 0.18
0.155 µM
Interval -0.06 to 0.51

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 days

Change from baseline of serum levels of kynurenine

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Kynurenine
-0.17 µM
Interval -0.56 to 0.18
0.27 µM
Interval 0.01 to 0.65

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 days

Change from baseline of serum levels of quinolinic acid

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Quinolinic Acid
-51.0 nM
Interval -99.5 to -14.75
-35 nM
Interval -173.5 to 28.75

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 days

Change from baseline of serum levels of quinolinic acid

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Quinolinic Acid
-100.0 nM
Interval -138.0 to -41.75
-12.5 nM
Interval -74.75 to 62.0

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 days

Change from baseline of serum Kynurenine/Tryptophan

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Kynurenine/Tryptophan
0.001 µM/µM
Interval -0.004 to 0.005
-0.002 µM/µM
Interval -0.011 to 0.01

OTHER_PRE_SPECIFIED outcome

Timeframe: 12 days

Population: -(-to ) (-to )

Change from baseline of serum Kynurenine/Tryptophan

Outcome measures

Outcome measures
Measure
Vagus Nerve Stimulation
n=12 Participants
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 Participants
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Kynurenine/Tryptophan
-0.003 µM/µM
Interval -0.007 to 0.008
0.001 µM/µM
Interval -0.004 to 0.008

Adverse Events

Vagus Nerve Stimulation

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Sham Vagus Nerve Stimulation

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Vagus Nerve Stimulation
n=13 participants at risk
Subjects randomized to this arm will receive transcutaneous vagus nerve stimulation for 5 minutes on 4 consecutive days. Vagus nerve stimulation: Patients will receive transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. The device is a handheld electrical pulse generator and a pair of electrodes to be placed at the ear for stimulation. The specific target at the ear will be the auricular branch of the vagus nerve which innervates the skin of the ear canal. Electrodes will be placed near/at the entrance to the canal of the ear to provide stimulation to the auricular branch.
Sham Vagus Nerve Stimulation
n=6 participants at risk
Subjects randomized to this arm will receive sham stimulation for 5 minutes for 4 consecutive days. Sham vagus nerve stimulation: Patients will receive sham transcutaneous stimulation of the auricular branch of the left vagus nerve for 5 minutes daily for 4 consecutive days. Sham stimulation will be performed in the identical manner as true transcutaneous stimulation except that the patient will not receive electrical stimulation of the vagus nerve.
Infections and infestations
Upper respiratory tract infection
7.7%
1/13 • Number of events 1 • 12 days
All adverse events with a severity greater than grade 1 are reported. The definition of an adverse event and/or serious adverse event used to collect adverse event information does not differ from that of clinicaltrials.gov. Other than the adverse event reported in the tables, no other adverse events were collected or reported.
0.00%
0/6 • 12 days
All adverse events with a severity greater than grade 1 are reported. The definition of an adverse event and/or serious adverse event used to collect adverse event information does not differ from that of clinicaltrials.gov. Other than the adverse event reported in the tables, no other adverse events were collected or reported.

Additional Information

Cynthia Aranow M.D.

Feinstein Institute for Medical Research

Phone: 516 562-3845

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place