A Phase 3 interventional study of Brexpiprazole and Sertraline in Post Traumatic Stress Disorder, sponsored by Otsuka Pharmaceutical Development & Commercialization, Inc.. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2025-05-30.
Sponsored by Otsuka Pharmaceutical Development & Commercialization, Inc. · Phase 3, Interventional, and Treatment
This will be a 12-week, multicenter, randomized, double-blind trial evaluating the efficacy, safety, and tolerability of fixed-dose brexpiprazole + sertraline combination treatment in adult subjects with post-traumatic stress disorder.
1,147 studies on the registry are indexed under Stress Disorders, Traumatic; 108 are open to participants now.
This study's enrollment of 591 is above the median of 60 across 908 interventional studies indexed under Stress Disorders, Traumatic.
Browse Stress Disorders, Traumatic studies →Otsuka Pharmaceutical Development & Commercialization, Inc. is the lead sponsor of 289 studies on the registry; 18 are open to participants now.
Of its 104 completed or terminated interventional studies of FDA-regulated products, 69 (66%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
All enrolled participants received brexpiprazole-matched placebo tablets and sertraline-matched placebo tablets during the 1-week placebo run-in period.
Other: Placebo
Randomized participants received brexpiprazole 2 milligrams (mg), orally, once daily (QD) in combination with sertraline, 150 mg, orally, QD from Week 1 to Week 12 of the double-blind treatment (DBT) period.
Drug: Sertraline · Drug: Brexpiprazole
Randomized participants received brexpiprazole 3 mg, orally, QD in combination with sertraline, 150 mg, orally, QD from Week 1 to Week 12 of the DBT period.
Drug: Brexpiprazole · Drug: Sertraline
Randomized participants received sertraline 150 mg, orally, QD, in combination with sertraline matching placebo, orally, QD from Week 1 to Week 12 of the DBT period.
Drug: Sertraline · Other: Placebo
3 mg pill
Also known as: Rexulti
150 mg pill
Also known as: Zoloft
Pill
2 mg pill
Also known as: Rexulti
Change From Baseline in Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) Total Score
CAPS-5 was a structured interview designed to assess PTSD diagnostic status and symptoms severity as defined by DSM-5. CAPS -5 total score was calculated by summing severity scores for 20 DSM-5 PTSD symptoms (items 1-20) from categories: Category B: Intrusion symptoms (5 items); Category C: Avoidance symptoms (2 items); Category D: Cognition and mood symptoms (7 items); Category E: Arousal and reactivity symptoms (6 items). CAPS-5 total score was imputed by adding all subscores from categories B, C, D, E. Each symptom was scored 0=Absent to 4=Extreme/incapacitating, to yield a score range of 0-80. Higher scores indicate worse outcome. Least squares (LS) mean was determined by Mixed-effect model repeated measures (MMRM) method with fixed effect of treatment, trial site, visit week, and an interaction term of treatment by visit week, and included the interaction term of baseline values by visit week as a covariate.
Time frame: Baseline (Week 1), Week 10
Change in Clinical Global Impression - Severity (CGI-S) Score
The CGI-S is a standardized, clinician-administered global rating scale that measures disease severity. To assess CGI-S, the rater or investigator answered the following question: "Considering your total clinical experience with this particular population, how mentally ill is the participant at this time?" Response choices include: 0 = not assessed; 1 = normal, not ill at all; 2 = borderline mentally ill; 3 = mildly ill; 4 = moderately ill; 5 = markedly ill; 6 = severely ill; and 7 = among the most extremely ill participants. The score 0 (not assessed) was to be set to missing. The CGI-S is therefore a 7-point scale from 1 through 7. A higher score on the CGI-S represents a higher severity of disease. LS mean was determined by MMRM method with fixed effect of treatment, trial site, visit week, and an interaction term of treatment by visit week, and included the interaction term of baseline values by visit week as a covariate.
Time frame: Baseline (Week 1), Week 10
Change in Brief Inventory of Psychosocial Functions (B-IPF) Score
The B-IPF is a short patient-reported questionnaire consisting of 7 questions which measure PTSD-specific psychosocial function on a 7-point Likert scale (0 = not at all to 6 = very much, and a not applicable option) with a recall period of 30 days. The B-IPF measures the concepts of romantic relationships, parenting, family, friendships and socializing, work, education, and self-care. Total score ranges from 0-100 and is calculated by summing the completed scale items, dividing by the maximum possible score of all items and multiplying by 100. Higher scores indicate greater impairment. LS mean was determined by MMRM method with fixed effect of treatment, trial site, visit week, and an interaction term of treatment by visit week, and included the interaction term of baseline values by visit week as a covariate.
Time frame: Baseline, Week 12
A total of 591 participants took part in the study at 75 investigative sites in the United States from 30 October 2019 to 15 August 2023.
| Milestone | Placebo | Brexpiprazole (2 mg) + Sertraline | Brexpiprazole (3 mg) + Sertraline | Sertraline + Placebo |
|---|---|---|---|---|
| Started | 591 | 0 | 0 | 0 |
| Completed | 553 | 0 | 0 | 0 |
| Not completed | 38 | 0 | 0 | 0 |
| Withdrew: Not randomized | 38 | 0 | 0 | 0 |
| Milestone | Placebo | Brexpiprazole (2 mg) + Sertraline | Brexpiprazole (3 mg) + Sertraline | Sertraline + Placebo |
|---|---|---|---|---|
| Started | 0 | 191 | 185 | 177 |
| Randomized sample | 0 | 191 | 185 | 177 |
| Enriched randomized sample | 0 | 143 | 136 | 138 |
| Full analysis set (fas) enriched sample | 0 | 132 | 126 | 130 |
| Safety sample | 0 | 185 | 180 | 172 |
| Completed | 0 | 126 | 123 | 116 |
| Not completed | 0 | 65 | 62 | 61 |
| Withdrew: Adverse event | 0 | 9 | 9 | 8 |
| Withdrew: Death | 0 | 1 | 0 | 0 |
| Withdrew: Lost to follow-up | 0 | 22 | 11 | 25 |
| Withdrew: Non-compliance with study drug | 0 | 4 | 4 | 2 |
| Withdrew: Physician decision | 0 | 1 | 0 | 1 |
| Withdrew: Pregnancy | 0 | 1 | 0 | 1 |
| Withdrew: Protocol deviation | 0 | 7 | 6 | 4 |
| Withdrew: Withdrawal by subject | 0 | 19 | 29 | 14 |
| Withdrew: Reason not specified | 0 | 1 | 3 | 6 |
CAPS-5 was a structured interview designed to assess PTSD diagnostic status and symptoms severity as defined by DSM-5. CAPS -5 total score was calculated by summing severity scores for 20 DSM-5 PTSD symptoms (items 1-20) from categories: Category B: Intrusion symptoms (5 items); Category C: Avoidance symptoms (2 items); Category D: Cognition and mood symptoms (7 items); Category E: Arousal and reactivity symptoms (6 items). CAPS-5 total score was imputed by adding all subscores from categories B, C, D, E. Each symptom was scored 0=Absent to 4=Extreme/incapacitating, to yield a score range of 0-80. Higher scores indicate worse outcome. Least squares (LS) mean was determined by Mixed-effect model repeated measures (MMRM) method with fixed effect of treatment, trial site, visit week, and an interaction term of treatment by visit week, and included the interaction term of baseline values by visit week as a covariate.
| score on a scale | Brexpiprazole (2 mg) + Sertraline | Brexpiprazole (3 mg) + Sertraline | Sertraline + Placebo |
|---|---|---|---|
| Change From Baseline in Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) Total Score | -16.53 ± 1.19 | -18.28 ± 1.23 | -17.57 ± 1.19 |
The CGI-S is a standardized, clinician-administered global rating scale that measures disease severity. To assess CGI-S, the rater or investigator answered the following question: "Considering your total clinical experience with this particular population, how mentally ill is the participant at this time?" Response choices include: 0 = not assessed; 1 = normal, not ill at all; 2 = borderline mentally ill; 3 = mildly ill; 4 = moderately ill; 5 = markedly ill; 6 = severely ill; and 7 = among the most extremely ill participants. The score 0 (not assessed) was to be set to missing. The CGI-S is therefore a 7-point scale from 1 through 7. A higher score on the CGI-S represents a higher severity of disease. LS mean was determined by MMRM method with fixed effect of treatment, trial site, visit week, and an interaction term of treatment by visit week, and included the interaction term of baseline values by visit week as a covariate.
| score on a scale | Brexpiprazole (2 mg) + Sertraline | Brexpiprazole (3 mg) + Sertraline | Sertraline + Placebo |
|---|---|---|---|
| Change in Clinical Global Impression - Severity (CGI-S) Score | -1.26 ± 0.10 | -1.31 ± 0.11 | -1.29 ± 0.10 |
The B-IPF is a short patient-reported questionnaire consisting of 7 questions which measure PTSD-specific psychosocial function on a 7-point Likert scale (0 = not at all to 6 = very much, and a not applicable option) with a recall period of 30 days. The B-IPF measures the concepts of romantic relationships, parenting, family, friendships and socializing, work, education, and self-care. Total score ranges from 0-100 and is calculated by summing the completed scale items, dividing by the maximum possible score of all items and multiplying by 100. Higher scores indicate greater impairment. LS mean was determined by MMRM method with fixed effect of treatment, trial site, visit week, and an interaction term of treatment by visit week, and included the interaction term of baseline values by visit week as a covariate.
| score on a scale | Brexpiprazole (2 mg) + Sertraline | Brexpiprazole (3 mg) + Sertraline | Sertraline + Placebo |
|---|---|---|---|
| Change in Brief Inventory of Psychosocial Functions (B-IPF) Score | -27.12 ± 2.67 | -31.79 ± 2.86 | -22.96 ± 2.71 |
Collected over From the first dose of the study drug up to 21 days after the last dose (Up to Week 15). Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Brexpiprazole (2 mg) + Sertraline | 1/185 (0.5%) | 1/185 (0.5%) | 31/185 (16.8%) |
| Brexpiprazole (3 mg) + Sertraline | 0/180 (0%) | 1/180 (0.6%) | 35/180 (19.4%) |
| Sertraline + Placebo | 0/172 (0%) | 3/172 (1.7%) | 36/172 (20.9%) |
| Event | Brexpiprazole (2 mg) + Sertraline | Brexpiprazole (3 mg) + Sertraline | Sertraline + Placebo |
|---|---|---|---|
| ManiaPsychiatric disorders | 0/185 | 0/180 | 1/172 |
| Suicidal IdeationPsychiatric disorders | 0/185 | 0/180 | 1/172 |
| HypertensionVascular disorders | 0/185 | 0/180 | 1/172 |
| Cyst RuptureGeneral disorders | 0/185 | 1/180 | 0/172 |
| DrowningGeneral disorders | 1/185 | 0/180 | 0/172 |
| Event | Brexpiprazole (2 mg) + Sertraline | Brexpiprazole (3 mg) + Sertraline | Sertraline + Placebo |
|---|---|---|---|
| NauseaGastrointestinal disorders | 9/185 | 15/180 | 15/172 |
| HeadacheNervous system disorders | 13/185 | 10/180 | 13/172 |
| DiarrhoeaGastrointestinal disorders | 7/185 | 11/180 | 11/172 |
| InsomniaPsychiatric disorders | 7/185 | 7/180 | 9/172 |
Randomized Sample included all participants randomized into this trial.
| Age, Continuous(years) | Brexpiprazole (2 mg) + Sertraline | Brexpiprazole (3 mg) + Sertraline | Sertraline + Placebo | Total |
|---|---|---|---|---|
| Mean | 37.1 ± 12.1 | 36.3 ± 11.7 | 37.7 ± 12.3 | 37.0 ± 12.1 |
| Sex: Female, Male(Participants) | Brexpiprazole (2 mg) + Sertraline | Brexpiprazole (3 mg) + Sertraline | Sertraline + Placebo | Total |
|---|---|---|---|---|
| Female | 142 | 141 | 126 | 409 |
| Male | 49 | 44 | 51 | 144 |
| Race/Ethnicity, Customized(Participants) | Brexpiprazole (2 mg) + Sertraline | Brexpiprazole (3 mg) + Sertraline | Sertraline + Placebo | Total |
|---|---|---|---|---|
| Hispanic or Latino | 48 | 37 | 37 | 122 |
| Not Hispanic or Latino | 143 | 146 | 140 | 429 |
| Unknown | 0 | 1 | 0 | 1 |
| Other | 0 | 1 | 0 | 1 |
| Race/Ethnicity, Customized(Participants) | Brexpiprazole (2 mg) + Sertraline | Brexpiprazole (3 mg) + Sertraline | Sertraline + Placebo | Total |
|---|---|---|---|---|
| White | 130 | 124 | 121 | 375 |
| Black or African American | 46 | 45 | 44 | 135 |
| American Indian or Alaska Native | 3 | 1 | 2 | 6 |
| Asian | 6 | 8 | 5 | 19 |
| Native Hawaiian or Other Pacific Islander | 2 | 1 | 0 | 3 |
| Other | 4 | 6 | 5 | 15 |
| Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) Total Score(score on a scale) | Brexpiprazole (2 mg) + Sertraline | Brexpiprazole (3 mg) + Sertraline | Sertraline + Placebo | Total |
|---|---|---|---|---|
| Mean | 38.8 ± 8.3 | 37.8 ± 7.3 | 39.3 ± 7.8 | 38.7 ± 7.8 |
| Clinical Global Impression - Severity (CGI-S) Score(score on a scale) | Brexpiprazole (2 mg) + Sertraline | Brexpiprazole (3 mg) + Sertraline | Sertraline + Placebo | Total |
|---|---|---|---|---|
| Mean | 4.6 ± 0.7 | 4.5 ± 0.7 | 4.7 ± 0.7 | 4.6 ± 0.7 |
| Brief Inventory of Psychosocial Functions (B-IPF) Score(score on a scale) | Brexpiprazole (2 mg) + Sertraline | Brexpiprazole (3 mg) + Sertraline | Sertraline + Placebo | Total |
|---|---|---|---|---|
| Mean | 63.3 ± 20.1 | 62.5 ± 22.4 | 59.9 ± 20.5 | 61.9 ± 21.0 |
Documents are hosted by the registry — open the source record to download them.
Plan to share: Yes — Anonymized Individual participant data (IPD) that underlie the results of this study will be shared with researchers to achieve aims pre-specified in a methodologically sound research proposal. Small studies with less than 25 participants are excluded from data sharing.
Supporting information: Study protocol, Csr
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Otsuka Pharmaceutical Development & Commercialization, Inc.