Trial Outcomes & Findings for 12-Week Study Evaluating the Efficacy, Safety, and Tolerability of Adjunctive Infliximab for Bipolar I/II Depression (NCT NCT02363738)

NCT ID: NCT02363738

Last Updated: 2021-07-28

Results Overview

Baseline and Week 12 Montgomery-Asberg Depression Rating Scale scores are provided, with the range of possible values on the scale from 0 to 60. The higher the score, the worse the overall depressive symptoms.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

60 participants

Primary outcome timeframe

Up to 12 weeks

Results posted on

2021-07-28

Participant Flow

Participant milestones

Participant milestones
Measure
Infliximab
Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation Infliximab: Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation. Infliximab will be prescribed adjunctively to a conventional mood stabilizer or atypical antipsychotic agent.
Saline (Placebo)
Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency. Saline: Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency and will be administered adjunctively to conventional mood stabilizer or atypical antipsychotic agent.
Overall Study
STARTED
29
31
Overall Study
COMPLETED
21
26
Overall Study
NOT COMPLETED
8
5

Reasons for withdrawal

Reasons for withdrawal
Measure
Infliximab
Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation Infliximab: Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation. Infliximab will be prescribed adjunctively to a conventional mood stabilizer or atypical antipsychotic agent.
Saline (Placebo)
Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency. Saline: Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency and will be administered adjunctively to conventional mood stabilizer or atypical antipsychotic agent.
Overall Study
Adverse Event
5
2
Overall Study
Lack of Efficacy
1
2
Overall Study
Lost to Follow-up
2
1

Baseline Characteristics

12-Week Study Evaluating the Efficacy, Safety, and Tolerability of Adjunctive Infliximab for Bipolar I/II Depression

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Infliximab
n=28 Participants
Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation Infliximab: Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation. Infliximab will be prescribed adjunctively to a conventional mood stabilizer or atypical antipsychotic agent.
Saline (Placebo)
n=30 Participants
Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency. Saline: Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency and will be administered adjunctively to conventional mood stabilizer or atypical antipsychotic agent.
Total
n=58 Participants
Total of all reporting groups
Age, Continuous
45 years
STANDARD_DEVIATION 11.7 • n=5 Participants
46.8 years
STANDARD_DEVIATION 10.2 • n=7 Participants
45.71 years
STANDARD_DEVIATION 10.91 • n=5 Participants
Sex: Female, Male
Female
20 Participants
n=5 Participants
26 Participants
n=7 Participants
46 Participants
n=5 Participants
Sex: Female, Male
Male
8 Participants
n=5 Participants
4 Participants
n=7 Participants
12 Participants
n=5 Participants
Race/Ethnicity, Customized
White
24 Participants
n=5 Participants
24 Participants
n=7 Participants
48 Participants
n=5 Participants
Race/Ethnicity, Customized
Other
4 Participants
n=5 Participants
6 Participants
n=7 Participants
10 Participants
n=5 Participants
Region of Enrollment
Canada
26 Participants
n=5 Participants
27 Participants
n=7 Participants
53 Participants
n=5 Participants
Region of Enrollment
United States
2 Participants
n=5 Participants
3 Participants
n=7 Participants
5 Participants
n=5 Participants
BMI
34.5 kg/m^2
STANDARD_DEVIATION 10 • n=5 Participants
34.6 kg/m^2
STANDARD_DEVIATION 8 • n=7 Participants
34.5 kg/m^2
STANDARD_DEVIATION 8.95 • n=5 Participants
Number of lifetime psychiatric hospitalizations
1.8 Hospitalizations
STANDARD_DEVIATION 1.9 • n=5 Participants
1.6 Hospitalizations
STANDARD_DEVIATION 2.0 • n=7 Participants
1.65 Hospitalizations
STANDARD_DEVIATION 2.0 • n=5 Participants
Baseline MADRS total score
30.6 units on a scale
STANDARD_DEVIATION 7.2 • n=5 Participants
29.5 units on a scale
STANDARD_DEVIATION 7 • n=7 Participants
30 units on a scale
STANDARD_DEVIATION 7.01 • n=5 Participants
Baseline YMRS total score
3.5 units on a scale
STANDARD_DEVIATION 3.0 • n=5 Participants
4.4 units on a scale
STANDARD_DEVIATION 4.2 • n=7 Participants
3.9 units on a scale
STANDARD_DEVIATION 3.5 • n=5 Participants
Bipolar I disorder
16 Participants
n=5 Participants
15 Participants
n=7 Participants
31 Participants
n=5 Participants
Bipolar II disorder
12 Participants
n=5 Participants
15 Participants
n=7 Participants
27 Participants
n=5 Participants
Educational level
High school
6 Participants
n=5 Participants
5 Participants
n=7 Participants
11 Participants
n=5 Participants
Educational level
College or university
17 Participants
n=5 Participants
24 Participants
n=7 Participants
41 Participants
n=5 Participants
Educational level
Graduate school
5 Participants
n=5 Participants
1 Participants
n=7 Participants
6 Participants
n=5 Participants
CRP level, age-adjusted
4.5 mg/L
STANDARD_DEVIATION 3.3 • n=5 Participants
7.3 mg/L
STANDARD_DEVIATION 8.1 • n=7 Participants
7.0 mg/L
STANDARD_DEVIATION 8.3 • n=5 Participants
Inflammatory criteria met
CRP level greater than or equal to 5 mg/L
10 Participants
n=5 Participants
15 Participants
n=7 Participants
25 Participants
n=5 Participants
Inflammatory criteria met
Obesity combined with hypertension or dyslipidemia
20 Participants
n=5 Participants
25 Participants
n=7 Participants
45 Participants
n=5 Participants
Inflammatory criteria met
Diabetes type 1 or 2
7 Participants
n=5 Participants
5 Participants
n=7 Participants
12 Participants
n=5 Participants
Inflammatory criteria met
Inflammatory bowel disorder
1 Participants
n=5 Participants
2 Participants
n=7 Participants
3 Participants
n=5 Participants
Inflammatory criteria met
Rheumatologic disorder
6 Participants
n=5 Participants
8 Participants
n=7 Participants
14 Participants
n=5 Participants
Inflammatory criteria met
Daily cigarette smoking
6 Participants
n=5 Participants
8 Participants
n=7 Participants
14 Participants
n=5 Participants
Inflammatory criteria met
Migraine headaches
9 Participants
n=5 Participants
7 Participants
n=7 Participants
16 Participants
n=5 Participants
Medications
Lithium carbonate
6 Participants
n=5 Participants
5 Participants
n=7 Participants
11 Participants
n=5 Participants
Medications
Valproate sodium
5 Participants
n=5 Participants
3 Participants
n=7 Participants
8 Participants
n=5 Participants
Medications
Quetiapine fumarate
8 Participants
n=5 Participants
5 Participants
n=7 Participants
13 Participants
n=5 Participants
Medications
Olanzapine and fluoxetine hydrochloride
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Medications
Lurasidone hydrochloride
4 Participants
n=5 Participants
5 Participants
n=7 Participants
9 Participants
n=5 Participants
Medications
Lamotrigine
8 Participants
n=5 Participants
7 Participants
n=7 Participants
15 Participants
n=5 Participants
Medications
Antidepressant
13 Participants
n=5 Participants
20 Participants
n=7 Participants
33 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Up to 12 weeks

Population: The modified intent-to-treat analysis included all participants who had received at least 1 infusion of study medication and completed at least 1 after-baseline efficacy assessment. One participant from the Infliximab arm and one participant from the placebo arm were excluded fromt he analyses because they did not complete at least one efficacy assessment after baseline.

Baseline and Week 12 Montgomery-Asberg Depression Rating Scale scores are provided, with the range of possible values on the scale from 0 to 60. The higher the score, the worse the overall depressive symptoms.

Outcome measures

Outcome measures
Measure
Infliximab
n=28 Participants
Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation Infliximab: Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation. Infliximab will be prescribed adjunctively to a conventional mood stabilizer or atypical antipsychotic agent.
Saline (Placebo)
n=30 Participants
Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency. Saline: Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency and will be administered adjunctively to conventional mood stabilizer or atypical antipsychotic agent.
Baseline and Week 12 Montgomery-Asberg Depression Rating Scale (MADRS) Scores
Baseline
29.61 units on a scale
Standard Error 1.36
27.79 units on a scale
Standard Error 1.59
Baseline and Week 12 Montgomery-Asberg Depression Rating Scale (MADRS) Scores
Week. 12
18.64 units on a scale
Standard Error 2.40
16.06 units on a scale
Standard Error 2.00

PRIMARY outcome

Timeframe: Up to 6 weeks

Population: The modified intent-to-treat analysis included all participants who had received at least 1 infusion of study medication and completed at least 1 after-baseline efficacy assessment. One participant from the Infliximab arm and one participant from the placebo arm were excluded fromt he analyses because they did not complete at least one efficacy assessment after baseline.

Baseline and Week 6 Montgomery-Asberg Depression Rating Scale (MADRS) scores, where the range of possible values on the scale is from 0 to 60. The higher the score, the worse the overall depressive symptoms.

Outcome measures

Outcome measures
Measure
Infliximab
n=28 Participants
Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation Infliximab: Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation. Infliximab will be prescribed adjunctively to a conventional mood stabilizer or atypical antipsychotic agent.
Saline (Placebo)
n=30 Participants
Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency. Saline: Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency and will be administered adjunctively to conventional mood stabilizer or atypical antipsychotic agent.
Baseline and Week 6 Montgomery-Asberg Depression Rating Scale (MADRS) Scores
Baseline
29.61 units on a scale
Standard Error 1.36
27.79 units on a scale
Standard Error 1.59
Baseline and Week 6 Montgomery-Asberg Depression Rating Scale (MADRS) Scores
Week 6
19.44 units on a scale
Standard Error 2.27
20.94 units on a scale
Standard Error 2.29

SECONDARY outcome

Timeframe: Baseline to Week 12

Population: The number of total participants analyzed is lower than those previously reported in the primary outcome measure as only a subgroup of participants underwent this additional and optional MRS testing.

Changes in prefrontal metabolites concentration of N-acetylaspartate, using proton-magnetic resonance spectroscopy (1H-MRS), adjusted for age, sex, baseline values and % gray matter in the spectroscopic region of interest.

Outcome measures

Outcome measures
Measure
Infliximab
n=15 Participants
Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation Infliximab: Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation. Infliximab will be prescribed adjunctively to a conventional mood stabilizer or atypical antipsychotic agent.
Saline (Placebo)
n=18 Participants
Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency. Saline: Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency and will be administered adjunctively to conventional mood stabilizer or atypical antipsychotic agent.
Changes in Brain N-acetylaspartate Levels
Baseline
5.67 mmol/kg
Standard Error 0.09
5.65 mmol/kg
Standard Error 0.09
Changes in Brain N-acetylaspartate Levels
Week 12
5.71 mmol/kg
Standard Error 0.21
5.81 mmol/kg
Standard Error 0.18

SECONDARY outcome

Timeframe: Baseline to 12 weeks

Population: Three participants in the Infliximab group did not complete at least one post-baseline efficacy assessment. Three participants did not complete at least one post-baseline efficacy assessment.

Change in the Snaith-Hamilton Pleasure Scale (SHAPS) total score. Total score range of 14 to 56, with greater scores indicative of greater hedonic capacity.

Outcome measures

Outcome measures
Measure
Infliximab
n=25 Participants
Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation Infliximab: Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation. Infliximab will be prescribed adjunctively to a conventional mood stabilizer or atypical antipsychotic agent.
Saline (Placebo)
n=27 Participants
Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency. Saline: Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency and will be administered adjunctively to conventional mood stabilizer or atypical antipsychotic agent.
Changes in Anhedonia
Baseline
34.04 Score on a scale
Standard Error 1.73
34.8 Score on a scale
Standard Error 1.45
Changes in Anhedonia
Week 12
37.17 Score on a scale
Standard Error 1.5
40.79 Score on a scale
Standard Error 1.69

Adverse Events

Infliximab

Serious events: 1 serious events
Other events: 4 other events
Deaths: 1 deaths

Saline (Placebo)

Serious events: 2 serious events
Other events: 0 other events
Deaths: 1 deaths

Serious adverse events

Serious adverse events
Measure
Infliximab
n=29 participants at risk
Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation Infliximab: Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation. Infliximab will be prescribed adjunctively to a conventional mood stabilizer or atypical antipsychotic agent.
Saline (Placebo)
n=31 participants at risk
Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency. Saline: Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency and will be administered adjunctively to conventional mood stabilizer or atypical antipsychotic agent.
Nervous system disorders
Mortality
3.4%
1/29 • Number of events 1 • Adverse event data were collected from screening (prior to baseline) through the completion of the study at week 12 (minimum of 3 months).
0.00%
0/31 • Adverse event data were collected from screening (prior to baseline) through the completion of the study at week 12 (minimum of 3 months).
Social circumstances
Mortality
0.00%
0/29 • Adverse event data were collected from screening (prior to baseline) through the completion of the study at week 12 (minimum of 3 months).
3.2%
1/31 • Number of events 1 • Adverse event data were collected from screening (prior to baseline) through the completion of the study at week 12 (minimum of 3 months).
Psychiatric disorders
Hospitalization
0.00%
0/29 • Adverse event data were collected from screening (prior to baseline) through the completion of the study at week 12 (minimum of 3 months).
3.2%
1/31 • Number of events 1 • Adverse event data were collected from screening (prior to baseline) through the completion of the study at week 12 (minimum of 3 months).

Other adverse events

Other adverse events
Measure
Infliximab
n=29 participants at risk
Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation Infliximab: Intravenous infliximab (5mg/kg) at baseline, week 2 and 6 under clinical observation. Infliximab will be prescribed adjunctively to a conventional mood stabilizer or atypical antipsychotic agent.
Saline (Placebo)
n=31 participants at risk
Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency. Saline: Intravenous placebo (saline solution) at baseline, week 2 and 6 under clinical observation. Placebo will be matched to infliximab in color and consistency and will be administered adjunctively to conventional mood stabilizer or atypical antipsychotic agent.
Skin and subcutaneous tissue disorders
Skin Rash
3.4%
1/29 • Number of events 1 • Adverse event data were collected from screening (prior to baseline) through the completion of the study at week 12 (minimum of 3 months).
0.00%
0/31 • Adverse event data were collected from screening (prior to baseline) through the completion of the study at week 12 (minimum of 3 months).
Skin and subcutaneous tissue disorders
Hair loss
3.4%
1/29 • Number of events 1 • Adverse event data were collected from screening (prior to baseline) through the completion of the study at week 12 (minimum of 3 months).
0.00%
0/31 • Adverse event data were collected from screening (prior to baseline) through the completion of the study at week 12 (minimum of 3 months).
Musculoskeletal and connective tissue disorders
Reactive arthritis
3.4%
1/29 • Number of events 1 • Adverse event data were collected from screening (prior to baseline) through the completion of the study at week 12 (minimum of 3 months).
0.00%
0/31 • Adverse event data were collected from screening (prior to baseline) through the completion of the study at week 12 (minimum of 3 months).
Hepatobiliary disorders
Abnormal liver function enzymes
3.4%
1/29 • Number of events 1 • Adverse event data were collected from screening (prior to baseline) through the completion of the study at week 12 (minimum of 3 months).
0.00%
0/31 • Adverse event data were collected from screening (prior to baseline) through the completion of the study at week 12 (minimum of 3 months).

Additional Information

Dr. Roger McIntyre

University Health Network

Phone: 416-603-5279

Results disclosure agreements

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