Trial Outcomes & Findings for Electrical Nerve Block for Amputation Pain (NCT NCT02221934)

NCT ID: NCT02221934

Last Updated: 2025-06-06

Results Overview

Demonstration of 50% reduction in a Numerical Rating Scale (NRS; 0-10 Scale; with 10 being the highest pain imaginable) pain score from pre-treatment to post-treatment for more than 50% of all pain episodes. Study success will be determined by a superiority test on the difference between responder rates in the Test group (those receiving the treatment) and Control group (those who do not receive treatment).

Recruitment status

ACTIVE_NOT_RECRUITING

Study phase

NA

Target enrollment

607 participants

Primary outcome timeframe

Randomized Testing Window (Month-1 to Month-3 post implant, 2 Month duration)

Results posted on

2025-06-06

Participant Flow

Subjects were required to fulfill all eligibility requirements, including lidocaine injection screening. Eligible subjects underwent study device implant and activation prior to group assignment.

Participant milestones

Participant milestones
Measure
Test Treatment
Self-initiated high frequency bioelectric nerve block delivered to the nerve by Altius.
Active Sham Control Treatment
Self-initiated non-therapeutic electrical signal delivered to the nerve by Altius.
Not Yet Randomized
Not yet randomized to Test Treatment or Active Sham Control Treatment groups.
Screening
STARTED
0
0
607
Screening
COMPLETED
0
0
183
Screening
NOT COMPLETED
0
0
424
Device Activation
STARTED
0
0
183
Device Activation
Primary Safety Analysis Cohort
0
0
183
Device Activation
Successful Implant
0
0
180
Device Activation
COMPLETED
0
0
178
Device Activation
NOT COMPLETED
0
0
5
Randomized Testing (Month 1 to Month 3)
STARTED
87
91
0
Randomized Testing (Month 1 to Month 3)
Successful Randomization
87
91
0
Randomized Testing (Month 1 to Month 3)
Successful Device Use (Primary Effectiveness Analysis Cohort)
85
85
0
Randomized Testing (Month 1 to Month 3)
COMPLETED
82
83
0
Randomized Testing (Month 1 to Month 3)
NOT COMPLETED
5
8
0
Follow-up (Month 3 to Month 12)
STARTED
82
83
0
Follow-up (Month 3 to Month 12)
COMPLETED
74
75
0
Follow-up (Month 3 to Month 12)
NOT COMPLETED
8
8
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Electrical Nerve Block for Amputation Pain

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Test Treatment
n=85 Participants
Self-initiated high frequency bioelectric nerve block delivered to the nerve by Altius.
Active Sham Control Treatment
n=85 Participants
Self-initiated non-therapeutic electrical signal delivered to the nerve by Altius.
Total
n=170 Participants
Total of all reporting groups
Age, Continuous
58.1 years
STANDARD_DEVIATION 12.21 • n=99 Participants
57.9 years
STANDARD_DEVIATION 12.57 • n=107 Participants
58.0 years
STANDARD_DEVIATION 12.35 • n=206 Participants
Sex: Female, Male
Female
34 Participants
n=99 Participants
34 Participants
n=107 Participants
68 Participants
n=206 Participants
Sex: Female, Male
Male
51 Participants
n=99 Participants
51 Participants
n=107 Participants
102 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
83 Participants
n=99 Participants
84 Participants
n=107 Participants
167 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
n=99 Participants
1 Participants
n=107 Participants
2 Participants
n=206 Participants
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants
n=99 Participants
1 Participants
n=107 Participants
3 Participants
n=206 Participants
Race (NIH/OMB)
Asian
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
Race (NIH/OMB)
Black or African American
12 Participants
n=99 Participants
10 Participants
n=107 Participants
22 Participants
n=206 Participants
Race (NIH/OMB)
White
66 Participants
n=99 Participants
71 Participants
n=107 Participants
137 Participants
n=206 Participants
Race (NIH/OMB)
More than one race
2 Participants
n=99 Participants
1 Participants
n=107 Participants
3 Participants
n=206 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
n=99 Participants
2 Participants
n=107 Participants
4 Participants
n=206 Participants
Level of Amputation
Above knee (AKA)
38 Participants
n=99 Participants
35 Participants
n=107 Participants
73 Participants
n=206 Participants
Level of Amputation
Below knee (BKA)
47 Participants
n=99 Participants
50 Participants
n=107 Participants
97 Participants
n=206 Participants

PRIMARY outcome

Timeframe: Randomized Testing Window (Month-1 to Month-3 post implant, 2 Month duration)

Demonstration of 50% reduction in a Numerical Rating Scale (NRS; 0-10 Scale; with 10 being the highest pain imaginable) pain score from pre-treatment to post-treatment for more than 50% of all pain episodes. Study success will be determined by a superiority test on the difference between responder rates in the Test group (those receiving the treatment) and Control group (those who do not receive treatment).

Outcome measures

Outcome measures
Measure
Test Treatment
n=85 Participants
Self-initiated high frequency bioelectric nerve block delivered to the nerve by Altius.
Active Sham Control Treatment
n=85 Participants
Self-initiated non-therapeutic electrical signal delivered to the nerve by Altius.
Primary Effectiveness Endpoint: Reduction of Pain Level by 50% From Baseline
21 Participants
6 Participants

PRIMARY outcome

Timeframe: From screening injection visit through 3 months post implant

Incidence of all serious adverse events including serious adverse device events and unanticipated adverse device events.

Outcome measures

Outcome measures
Measure
Test Treatment
n=85 Participants
Self-initiated high frequency bioelectric nerve block delivered to the nerve by Altius.
Active Sham Control Treatment
n=85 Participants
Self-initiated non-therapeutic electrical signal delivered to the nerve by Altius.
Primary Safety Endpoint: Incidence of Reported and Adjudicated Serious Adverse Events
All Serious Adverse Events (SAE)
24 Participants
19 Participants
Primary Safety Endpoint: Incidence of Reported and Adjudicated Serious Adverse Events
Serious Adverse Device Effect (SADE)
3 Participants
5 Participants
Primary Safety Endpoint: Incidence of Reported and Adjudicated Serious Adverse Events
Unanticipated Adverse Device Effect (UADE)
0 Participants
0 Participants

SECONDARY outcome

Timeframe: 12 months post implant

Average percent change of pain intensity from before treatment, 30 minutes post treatment, and 2 hours post treatment

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 12 months post implant

Average morphine equivalent dose per day over two weeks compared at Month 3, Month 6 and Month 12 to Baseline.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 12 months post implant

Brief Pain Inventory summary score compared at Month 3, Month 6 and Month 12 to Baseline.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 12 months post implant

EQ-5D summary index, SF-12 physical component and mental component summary compared at Month 3, Month 6 and Month 12 to Baseline.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 12 months post implant

Comparison of Patient Global Impression of Change across the Month 3, Month 6 and Month 12 office visits

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 12 months post implant

Incidence of all Non-Serious Adverse Events, including Non-Serious Adverse Events, Non-Serious Adverse Device Events, and Unanticipated (Non-Serious) Adverse Device Events from the time of consent through 12 months post implant.

Outcome measures

Outcome data not reported

Adverse Events

Test Treatment

Serious events: 35 serious events
Other events: 34 other events
Deaths: 1 deaths

Active Sham Control Treatment

Serious events: 35 serious events
Other events: 34 other events
Deaths: 2 deaths

Serious adverse events

Serious adverse events
Measure
Test Treatment
n=85 participants at risk
Self-initiated high frequency bioelectric nerve block delivered to the nerve by Altius.
Active Sham Control Treatment
n=85 participants at risk
Self-initiated non-therapeutic electrical signal delivered to the nerve by Altius.
Cardiac disorders
Angina unstable
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Cardiac disorders
Atrial flutter
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Cardiac disorders
Atrioventricular block
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Cardiac disorders
Bradycardia
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Cardiac disorders
Cardiac tamponade
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Cardiac disorders
Coronary artery disease
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Cardiac disorders
Myocardial infarction
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Cardiac disorders
Pericardial effusion
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Gastrointestinal disorders
Abdominal pain
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
2.4%
2/85 • Number of events 2 • From time of lidocaine injection screening through Month-12, approximately 1 year
Gastrointestinal disorders
Gastrointestinal haemorrhage
2.4%
2/85 • Number of events 2 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Gastrointestinal disorders
Haematemesis
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Gastrointestinal disorders
Nausea
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Gastrointestinal disorders
Pancreatitis
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
General disorders
Adverse drug reaction
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
General disorders
Discomfort
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
General disorders
Implant site necrosis
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
General disorders
Medical device discomfort
4.7%
4/85 • Number of events 4 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
General disorders
Medical device site discomfort
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
General disorders
Medical device site pain
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
2.4%
2/85 • Number of events 2 • From time of lidocaine injection screening through Month-12, approximately 1 year
Hepatobiliary disorders
Hepatic cirrhosis
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Abscess
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Appendicitis
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Bronchitis
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Cellulitis
2.4%
2/85 • Number of events 3 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Corona virus infection
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Diverticulitis
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
2.4%
2/85 • Number of events 2 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Implant site cellulitis
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Implant site infection
3.5%
3/85 • Number of events 4 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Incision site abscess
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Osteomyelitis
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Pneumonia
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
3.5%
3/85 • Number of events 4 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Postoperative wound infection
2.4%
2/85 • Number of events 3 • From time of lidocaine injection screening through Month-12, approximately 1 year
3.5%
3/85 • Number of events 3 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Rotavirus infection
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Sepsis
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Shunt infection
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Urinary tract infection
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Wound infection
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Injury, poisoning and procedural complications
Cervical vertebral fracture
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Injury, poisoning and procedural complications
Fall
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
2.4%
2/85 • Number of events 2 • From time of lidocaine injection screening through Month-12, approximately 1 year
Injury, poisoning and procedural complications
Incision site haematoma
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
2.4%
2/85 • Number of events 2 • From time of lidocaine injection screening through Month-12, approximately 1 year
Injury, poisoning and procedural complications
Limb injury
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Injury, poisoning and procedural complications
Limb traumatic amputation
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Injury, poisoning and procedural complications
Procedural complication
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Injury, poisoning and procedural complications
Subdural haematoma
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Injury, poisoning and procedural complications
Tendon injury
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Injury, poisoning and procedural complications
Wound dehiscence
2.4%
2/85 • Number of events 2 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Metabolism and nutrition disorders
Dehydration
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Metabolism and nutrition disorders
Diabetic ketoacidosis
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Metabolism and nutrition disorders
Hypoglycaemia
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Musculoskeletal and connective tissue disorders
Arthralgia
2.4%
2/85 • Number of events 2 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Musculoskeletal and connective tissue disorders
Musculoskeletal pain
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Musculoskeletal and connective tissue disorders
Pain in extremity
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Musculoskeletal and connective tissue disorders
Rhabdomyolysis
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Musculoskeletal and connective tissue disorders
Rotator cuff syndrome
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Calcifying fibrous pseudotumour
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Colon cancer
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Neuroma
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Osteosarcoma metastatic
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Nervous system disorders
Amputation stump pain
2.4%
2/85 • Number of events 3 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Nervous system disorders
Cerebrovascular accident
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Nervous system disorders
Neuralgia
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Nervous system disorders
Syncope
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Nervous system disorders
Toxic encephalopathy
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Nervous system disorders
Transient ischaemic attack
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Product Issues
Device extrusion
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Psychiatric disorders
Major depression
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Psychiatric disorders
Mental status changes
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Renal and urinary disorders
Acute kidney injury
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Renal and urinary disorders
Dysuria
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Renal and urinary disorders
Renal failure
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Reproductive system and breast disorders
Ovarian cyst
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Respiratory, thoracic and mediastinal disorders
Chronic obstructive pulmonary disease
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Respiratory, thoracic and mediastinal disorders
Pneumonia aspiration
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Respiratory, thoracic and mediastinal disorders
Respiratory arrest
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
Respiratory, thoracic and mediastinal disorders
Respiratory failure
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
2.4%
2/85 • Number of events 2 • From time of lidocaine injection screening through Month-12, approximately 1 year
Surgical and medical procedures
Amputation
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Surgical and medical procedures
Knee operation
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Vascular disorders
Haematoma
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Vascular disorders
Peripheral ischaemia
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
Vascular disorders
Thrombosis
0.00%
0/85 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year

Other adverse events

Other adverse events
Measure
Test Treatment
n=85 participants at risk
Self-initiated high frequency bioelectric nerve block delivered to the nerve by Altius.
Active Sham Control Treatment
n=85 participants at risk
Self-initiated non-therapeutic electrical signal delivered to the nerve by Altius.
General disorders
Medical device discomfort
5.9%
5/85 • Number of events 5 • From time of lidocaine injection screening through Month-12, approximately 1 year
5.9%
5/85 • Number of events 5 • From time of lidocaine injection screening through Month-12, approximately 1 year
Injury, poisoning and procedural complications
Fall
22.4%
19/85 • Number of events 38 • From time of lidocaine injection screening through Month-12, approximately 1 year
21.2%
18/85 • Number of events 28 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Corona virus infection
4.7%
4/85 • Number of events 4 • From time of lidocaine injection screening through Month-12, approximately 1 year
5.9%
5/85 • Number of events 5 • From time of lidocaine injection screening through Month-12, approximately 1 year
Infections and infestations
Postoperative wound infection
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year
5.9%
5/85 • Number of events 5 • From time of lidocaine injection screening through Month-12, approximately 1 year
Musculoskeletal and connective tissue disorders
Muscle spasms
5.9%
5/85 • Number of events 5 • From time of lidocaine injection screening through Month-12, approximately 1 year
1.2%
1/85 • Number of events 1 • From time of lidocaine injection screening through Month-12, approximately 1 year

Additional Information

Nick Hargus, PhD. Vice President of Clinical and Medical Affairs

Neuros Medical, Inc.

Phone: 440-951-2565

Results disclosure agreements

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