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Trial · NCT03193398

BTRX-246040 Administered Once Daily to Patients With Major Depressive Disorder

NCT03193398, Phase 2, Completed, BlackThorn Therapeutics, Inc.; results first posted 2021-05-11

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. BTRX-246040 Administered Once Daily to Patients With Major Depressive Disorder. Trials, record NCT03193398. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03193398

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
BTRX-246040 Administered Once Daily to Patients With Major Depressive Disorder
NCT number
NCT03193398
Status
Completed
Phases
Phase 2
Enrollment
104 participants, actual
Lead sponsor
BlackThorn Therapeutics, Inc.
Conditions
Major Depressive Disorder
Interventions
BTRX-246040 oral capsule(s), Placebo oral capsule(s)
First posted
2017-06-20
Last updated
2026-11-04
Results first posted
2021-05-11

Source ClinicalTrials.gov

Registered outcomes6

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryChange in Investigator-administered MADRS Total Score From Baseline BTRX-246040 and PlaceboWeek 8
The Investigator-administered MADRS includes 10 items assessing the following symptoms: apparent sadness, reported sadness, inner tension, reduced sleep, reduced appetite, concentration difficulties, lassitude, inability to feel, pessimistic thoughts, and suicidal thoughts. Each item is scored from 0 (absence of symptom) to 6 (severe symptom); the overall score ranges from 0 to 60. MADRS total scores from 0 to 6 indicate normal/symptom absent, from 7 to 19 indicate mild depression, from 20 to 34 indicate moderate depression, and from 35 to 60 indicate severe depression.
SecondaryChange From Baseline in Investigator-administered MADRS-6 Total ScoreWeek 8
The Investigator-administered MADRS-6 subscale focuses on the core symptoms of depression and assesses the following symptoms: apparent sadness, reported sadness, inner tension, lassitude, inability to feel, and pessimistic thoughts. Each item is scored from 0 (absence of symptom) to 6 (severe symptom); the overall score ranges from 0 to 36. The change from baseline in the Investigator-administered MADRS-6 subscale was analyzed using the same method as the MADRS efficacy endpoint, substituting the baseline MADRS-6 subscale as the covariate in place of the MADRS total score.
SecondaryChange From Baseline in Investigator-administered HADS-A (Hospital Anxiety and Depression Scale - Anxiety Subscale) ScoreWeek 8
The Investigator-administered Hospital Anxiety and Depression Scale (HADS) subscales comprises of 7 questions regarding Depression and 7 questions regarding Anxiety. Each question is rated on a scale from 0 - 3. The outcome of the HADS questionnaire is two total scores, the HADS-A (for anxiety) and the HADS-D (for depression). Both total scores are graded on a scale of 0 - 21 and can be categorized as Normal (0 - 7), Borderline Abnormal (8 - 10) and Abnormal (11 - 21). Higher scores indicate higher levels of anxiety and depression.
SecondaryChange From Baseline in Investigator-administered HADS-D (Hospital Anxiety and Depression Scale - Depression Subscale) ScoreWeek 8
The Investigator-administered Hospital Anxiety and Depression Scale (HADS) subscales comprises of 7 questions regarding Depression and 7 questions regarding Anxiety. Each question is rated on a scale from 0 - 3. The outcome of the HADS questionnaire is two total scores, the HADS-A (for anxiety) and the HADS-D (for depression). Both total scores are graded on a scale of 0 - 21 and can be categorized as Normal (0 - 7), Borderline Abnormal (8 - 10) and Abnormal (11 - 21). Higher scores indicate higher levels of anxiety and depression.
SecondaryChange From Baseline in Investigator-administered Dimensional Anhedonia Rating Scale (DARS)Week 8
The Investigator-administered Dimensional Anhedonia Rating Scale (DARS) is a 17-item questionnaire with each answer between 0 and 4 on a Likert scale grading (0=Not at all, 1=Slightly, 2=Moderately, 3=Mostly, 4=Very Much). Therefore, the DARS total score is on a scale of 0 - 68. The DARS Total score is broken down into four dimensions; Hobbies, Food/Drink, Social Activities and Sensory Experience.
SecondaryChange From Baseline in Investigator-administered Snaith-Hamilton Pleasure Scale (SHAPS) ScoreWeek 8
The Investigator-administered Snaith Hamilton Pleasure Scale (SHAPS) is a 14-item questionnaire. The SHAPS is scored two different ways. Under the original scoring method, each question has 4 responses, 2 of which imply agreement (Definitely Agree, Agree; each scored as 0) and 2 which imply disagreement (Disagree, Strongly Disagree; each scored as 1). Therefore, the SHAPS total score ranges 0 - 14. In this study, in addition to the traditional scoring method, an alternative scoring method will assign 1 - Strongly Agree, 2 - Agree, 3 - Disagree, and 4 - Strongly Disagree. Using this alternative scoring method, the total score ranges 14-56. In both scoring systems, higher scores indicate greater anhedonia.

Outcomes6

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYChange in Investigator-administered MADRS Total Score From Baseline BTRX-246040 and PlaceboWeek 8The full analysis set (FAS) contained all patients in the randomized set who received at least 1 dose of study medication and had at least 1 post-dose efficacy assessmentChange in score on a scale from baselineLEAST_SQUARES_MEAN
SECONDARYChange From Baseline in Investigator-administered MADRS-6 Total ScoreWeek 8The full analysis set (FAS) contained all patients in the randomized set who received at least 1 dose of study medication and had at least 1 post-dose efficacy assessmentChange in score on a scale from baselineLEAST_SQUARES_MEAN
SECONDARYChange From Baseline in Investigator-administered HADS-A (Hospital Anxiety and Depression Scale - Anxiety Subscale) ScoreWeek 8The full analysis set (FAS) contained all patients in the randomized set who received at least 1 dose of study medication and had at least 1 post-dose efficacy assessmentChange in score on a scale from baselineLEAST_SQUARES_MEAN
SECONDARYChange From Baseline in Investigator-administered HADS-D (Hospital Anxiety and Depression Scale - Depression Subscale) ScoreWeek 8The full analysis set (FAS) contained all patients in the randomized set who received at least 1 dose of study medication and had at least 1 post-dose efficacy assessmentChange in score on a scale from baselineLEAST_SQUARES_MEAN
SECONDARYChange From Baseline in Investigator-administered Dimensional Anhedonia Rating Scale (DARS)Week 8The full analysis set (FAS) contained all patients in the randomized set who received at least 1 dose of study medication and had at least 1 post-dose efficacy assessmentChange in score on a scale from baselineLEAST_SQUARES_MEAN
SECONDARYChange From Baseline in Investigator-administered Snaith-Hamilton Pleasure Scale (SHAPS) ScoreWeek 8The full analysis set (FAS) contained all patients in the randomized set who received at least 1 dose of study medication and had at least 1 post-dose efficacy assessmentChange in score on a scale from baselineLEAST_SQUARES_MEAN

Results by group12

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Change in Investigator-administered MADRS Total Score From Baseline BTRX-246040 and PlaceboBTRX-246040-15.0Standard Error 1.73Change in score on a scale from baseline
Change in Investigator-administered MADRS Total Score From Baseline BTRX-246040 and PlaceboPlacebo-13.6Standard Error 1.79Change in score on a scale from baseline
Change From Baseline in Investigator-administered MADRS-6 Total ScoreBTRX-246040-10.7Standard Error 1.17Change in score on a scale from baseline
Change From Baseline in Investigator-administered MADRS-6 Total ScorePlacebo-9.7Standard Error 1.21Change in score on a scale from baseline
Change From Baseline in Investigator-administered HADS-A (Hospital Anxiety and Depression Scale - Anxiety Subscale) ScoreBTRX-246040-2.6Standard Error 0.67Change in score on a scale from baseline
Change From Baseline in Investigator-administered HADS-A (Hospital Anxiety and Depression Scale - Anxiety Subscale) ScorePlacebo-3.5Standard Error 0.70Change in score on a scale from baseline
Change From Baseline in Investigator-administered HADS-D (Hospital Anxiety and Depression Scale - Depression Subscale) ScoreBTRX-246040-5.0Standard Error 0.76Change in score on a scale from baseline
Change From Baseline in Investigator-administered HADS-D (Hospital Anxiety and Depression Scale - Depression Subscale) ScorePlacebo-5.9Standard Error 0.80Change in score on a scale from baseline
Change From Baseline in Investigator-administered Dimensional Anhedonia Rating Scale (DARS)BTRX-24604013.7Standard Error 16.7Change in score on a scale from baseline
Change From Baseline in Investigator-administered Dimensional Anhedonia Rating Scale (DARS)Placebo2.91Standard Error 3.04Change in score on a scale from baseline

Participant flow6

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDBTRX-24604053
Overall StudySTARTEDPlacebo51
Overall StudyCOMPLETEDBTRX-24604038
Overall StudyCOMPLETEDPlacebo35
Overall StudyNOT COMPLETEDBTRX-24604015
Overall StudyNOT COMPLETEDPlacebo16

Adverse events142

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherHeadacheNervous system disordersBTRX-246040853
otherHeadacheNervous system disordersPlacebo1351
otherSomnolenceNervous system disordersBTRX-246040353
otherSomnolenceNervous system disordersPlacebo751
otherDizzinessNervous system disordersBTRX-246040153
otherDizzinessNervous system disordersPlacebo251
otherParaesthesiaNervous system disordersBTRX-246040253
otherParaesthesiaNervous system disordersPlacebo051
otherDisturbance In AttentionNervous system disordersBTRX-246040053
otherDisturbance In AttentionNervous system disordersPlacebo151

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityBTRX-246040053
Total, all-cause mortalityPlacebo051
Total, other adverse eventsBTRX-2460403453
Total, other adverse eventsPlacebo2751
Total, serious adverse eventsBTRX-246040053
Total, serious adverse eventsPlacebo151

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons2

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
BTRX-246040 vs Placebo: deaths from any causeTrial comparisons
BTRX-246040 vs Placebo: serious adverse eventsTrial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT03193398

GET https://conductscience.org/api/trials/v1/NCT03193398/events?page=2