Trial Outcomes & Findings for Intravenous Immunoglobulin for PANDAS (NCT NCT01281969)

NCT ID: NCT01281969

Last Updated: 2020-03-17

Results Overview

Active IVIG will be significantly superior to sham IVIG in reducing OC symptoms and providing global relief of neuropsychiatric symptomatology. Total score is reported as the sum of all items and has a range of 0-40. Higher scores indicate more severe symptoms.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

48 participants

Primary outcome timeframe

6 weeks

Results posted on

2020-03-17

Participant Flow

Participant milestones

Participant milestones
Measure
IVIG
Gamunex Intravenous Immunoglobulin: 2.0 gm/kg total, IV (in the vein), over 2 days
Placebo
Placebo: Normal saline, IV (in the vein), over 2 days
Screened But Not Randomized
Excluded prior to randomization because child did not meet study entry criteria or child refused consent
Overall Study
STARTED
18
18
12
Overall Study
COMPLETED
17
18
0
Overall Study
NOT COMPLETED
1
0
12

Reasons for withdrawal

Reasons for withdrawal
Measure
IVIG
Gamunex Intravenous Immunoglobulin: 2.0 gm/kg total, IV (in the vein), over 2 days
Placebo
Placebo: Normal saline, IV (in the vein), over 2 days
Screened But Not Randomized
Excluded prior to randomization because child did not meet study entry criteria or child refused consent
Overall Study
not randomized didn't meet criteria
0
0
7
Overall Study
AE during LP prior to IVIG admin
1
0
3
Overall Study
not randomized, child consent not given
0
0
2

Baseline Characteristics

Intravenous Immunoglobulin for PANDAS

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
IVIG
n=17 Participants
Gamunex Intravenous Immunoglobulin: 2.0 gm/kg total, IV (in the vein), over 2 days
Placebo
n=18 Participants
Placebo: Normal saline, IV (in the vein), over 2 days
Total
n=35 Participants
Total of all reporting groups
Age, Continuous
8.99 years
STANDARD_DEVIATION 2.37 • n=99 Participants
9.61 years
STANDARD_DEVIATION 2.32 • n=107 Participants
9.30 years
STANDARD_DEVIATION 2.32 • n=206 Participants
Sex: Female, Male
Female
5 Participants
n=99 Participants
7 Participants
n=107 Participants
12 Participants
n=206 Participants
Sex: Female, Male
Male
12 Participants
n=99 Participants
11 Participants
n=107 Participants
23 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=99 Participants
1 Participants
n=107 Participants
2 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
16 Participants
n=99 Participants
17 Participants
n=107 Participants
33 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
Race (NIH/OMB)
Asian
1 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
Race (NIH/OMB)
White
14 Participants
n=99 Participants
16 Participants
n=107 Participants
30 Participants
n=206 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
2 Participants
n=107 Participants
2 Participants
n=206 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Region of Enrollment
United States
17 participants
n=99 Participants
18 participants
n=107 Participants
35 participants
n=206 Participants
Clinical Global Impressions Severity
Moderate (4)
2 participants
n=99 Participants
3 participants
n=107 Participants
5 participants
n=206 Participants
Clinical Global Impressions Severity
Marked (5)
8 participants
n=99 Participants
9 participants
n=107 Participants
17 participants
n=206 Participants
Clinical Global Impressions Severity
Severe (6)
7 participants
n=99 Participants
4 participants
n=107 Participants
11 participants
n=206 Participants
Clinical Global Impressions Severity
Extreme (7)
0 participants
n=99 Participants
2 participants
n=107 Participants
2 participants
n=206 Participants
Children's Yale-Brown Obsessive Compulsive Scale Total
26.47 units on a scale
STANDARD_DEVIATION 5.14 • n=99 Participants
28.78 units on a scale
STANDARD_DEVIATION 3.98 • n=107 Participants
27.65 units on a scale
STANDARD_DEVIATION 4.66 • n=206 Participants

PRIMARY outcome

Timeframe: 6 weeks

Active IVIG will be significantly superior to sham IVIG in reducing OC symptoms and providing global relief of neuropsychiatric symptomatology. Total score is reported as the sum of all items and has a range of 0-40. Higher scores indicate more severe symptoms.

Outcome measures

Outcome measures
Measure
Group A
n=17 Participants
Gamunex Intravenous Immunoglobulin: 2.0 gm/kg total, IV (in the vein), over 2 days
Group B
n=18 Participants
Placebo: Normal saline, IV (in the vein), over 2 days
Children's Yale-Brown Obsessive Compulsive Scale Total Score
20.59 units on a scale
Standard Deviation 10.12
25.67 units on a scale
Standard Deviation 8.65

SECONDARY outcome

Timeframe: 6 weeks

1=very much improved, 2=much improved, 3=slightly improved, 4=no change, 5=slightly worse, 6=much worse, 7=very much worse

Outcome measures

Outcome measures
Measure
Group A
n=17 Participants
Gamunex Intravenous Immunoglobulin: 2.0 gm/kg total, IV (in the vein), over 2 days
Group B
n=18 Participants
Placebo: Normal saline, IV (in the vein), over 2 days
Clinical Global Impressions Improvement
2.88 units on a scale
Standard Deviation 1.20
3.53 units on a scale
Standard Deviation 1.62

SECONDARY outcome

Timeframe: 6 weeks

Defined as a CGI-I score of 1 or 2 ("much" or "very much" improved) and a decrease in CY-BOCS of at least 30%

Outcome measures

Outcome measures
Measure
Group A
n=17 Participants
Gamunex Intravenous Immunoglobulin: 2.0 gm/kg total, IV (in the vein), over 2 days
Group B
n=18 Participants
Placebo: Normal saline, IV (in the vein), over 2 days
Clinical Responder to Treatment
6 participants
4 participants

SECONDARY outcome

Timeframe: Baseline

Non-zero values of antinuclear antibodies are considered "positive" and reflective of an ongoing immune response in the individual. First, the number of participants who were classified at baseline as having "positive" antinuclear antibodies was calculated (see outcome measure data table, which states the number (AKA "count") of participants who had "positive" antinuclear antibodies at baseline). We hypothesized that improvement in the ongoing immune response, and therefore a reduction in antinuclear antibody titers, would mediate the effect of IVIG on OCD symptom improvement. However, because very few participants were classified as "positive" at baseline, it was not appropriate to pursue the original question of whether a decline in antinuclear antibodies (i.e., from "positive" to "negative") was related to symptom improvement.

Outcome measures

Outcome measures
Measure
Group A
n=17 Participants
Gamunex Intravenous Immunoglobulin: 2.0 gm/kg total, IV (in the vein), over 2 days
Group B
n=18 Participants
Placebo: Normal saline, IV (in the vein), over 2 days
The Degree of Treatment Response is Expected to Correlate With the Percentage Reduction in Antinuclear Antibody Titers Following IVIG Administration.
8 Participants
5 Participants

SECONDARY outcome

Timeframe: 3 Months

Outcome measures

Outcome data not reported

Adverse Events

Group A

Serious events: 0 serious events
Other events: 17 other events
Deaths: 0 deaths

Group B

Serious events: 0 serious events
Other events: 5 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Group A
n=17 participants at risk
Gamunex Intravenous Immunoglobulin: 2.0 gm/kg total, IV (in the vein), over 2 days
Group B
n=18 participants at risk
Placebo: Normal saline, IV (in the vein), over 2 days
General disorders
Headache
47.1%
8/17 • AE data were collected 1 week post-infusion and at 6 weeks post infusion.
16.7%
3/18 • AE data were collected 1 week post-infusion and at 6 weeks post infusion.
General disorders
Sore throat
5.9%
1/17 • AE data were collected 1 week post-infusion and at 6 weeks post infusion.
11.1%
2/18 • AE data were collected 1 week post-infusion and at 6 weeks post infusion.
General disorders
Stomach or abdominal discomfort
17.6%
3/17 • AE data were collected 1 week post-infusion and at 6 weeks post infusion.
5.6%
1/18 • AE data were collected 1 week post-infusion and at 6 weeks post infusion.
General disorders
Nausea (vomiting)
23.5%
4/17 • AE data were collected 1 week post-infusion and at 6 weeks post infusion.
5.6%
1/18 • AE data were collected 1 week post-infusion and at 6 weeks post infusion.
General disorders
Muscle/bone/joint pain
17.6%
3/17 • AE data were collected 1 week post-infusion and at 6 weeks post infusion.
11.1%
2/18 • AE data were collected 1 week post-infusion and at 6 weeks post infusion.
General disorders
Tiredness/fatigue
11.8%
2/17 • AE data were collected 1 week post-infusion and at 6 weeks post infusion.
5.6%
1/18 • AE data were collected 1 week post-infusion and at 6 weeks post infusion.
General disorders
Anxiety
11.8%
2/17 • AE data were collected 1 week post-infusion and at 6 weeks post infusion.
11.1%
2/18 • AE data were collected 1 week post-infusion and at 6 weeks post infusion.

Additional Information

Dr. David I. Driver

NIMH

Phone: 301.496.1683

Results disclosure agreements

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