Recent Updates
Recently added Catalysts

Dextromethorphan-Bupropion

Phase 2

Major Depressive Disorder (MDD) | Small molecule | Psychiatry |Axsome Therapeutics, Inc.|Last Updated: Apr 13, 2026

Target and mechanism

Molecular targetNMDA
ModalitySmall molecule

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

UNCONTROLLED
Total Trials1
Total Enrollment30

FDA Designations

No designations recorded

Clinical trial landscape

Dextromethorphan-Bupropion · 1 trial · 1 indication

Phase 2 1
NCT07523048Dextromethorphan-Bupropion on Striatal Activity in Adults With Major Depressive DisorderMajor Depressive Disorder (MDD)
RECRUITING30 Analytics
PHASE2RECRUITING
Dextromethorphan-Bupropion on Striatal Activity in Adults With Major Depressive Disorder
Major Depressive Disorder (MDD)Unlock trial analytics

Study Endpoints

Primary Endpoints

Change in Striatal BOLD Signal During Reward Processing
Baseline (Day 1) to endpoint (Day 14)

Change from baseline (Day 1) to endpoint (Day 14) in task-evoked blood oxygen level-dependent (BOLD) signal within striatal regions of interest during the Effort Expenditure for Rewards Task (EEfRT), as measured by functional magnetic resonance imaging (fMRI).

Secondary Endpoints

Change in Effort-Based Decision-Making During Reward Task
Baseline (Day 1) to endpoint (Day 14)
Change in Anhedonia as Measured by the Snaith-Hamilton Pleasure Scale (SHAPS)
Baseline (Day 1) to endpoint (Day 14).
Change in Anhedonia as Measured by the Dimensional Anhedonia Rating Scale (DARS)
Baseline (Day 1) to endpoint (Day 14)
Unlock Study Endpoints

Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeOTHER

Treatment Arms

ArmTypeDescription
Single group, open-label treatment armEXPERIMENTALAll participants who meet eligibility criteria and provide informed consent will be assigned to receive daily oral dextromethorphan-bupropion (DXM/BUP) extended release tablets in an open-label manner for a 14-day treatment period. No randomization or masking will be applied, and all participants and researchers will be aware of the study treatment allocation.

Interventions

NameTypeDescription
Dextromethorphan-BupropionDRUGThe generic name of the study drug is dextromethorphan-bupropion (150 mg), which is an oral, extended-release tablet comprised of 45 mg dextromethorphan HBr and 105 mg bupropion HCl. The brand name of this study drug is Auvelity. Eligible participants that provide written informed consent will be assigned to a single-arm, open-label treatment group, for a treatment period of 14 days. Participants in this treatment group will be asked to take one oral dextromethorphan-bupropion extended-release tablet once daily for Days 1-3 of the treatment period. Participants will then be asked to increase their dose to one oral dextromethorphan-bupropion extended-release tablet twice daily, for Days 4-14 of the treatment period.
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: 1. Capable of providing voluntary, written, informed consent prior to study enrollment. 2. Male or female between the age of 18 to 65 years, inclusive. 3. Meets DSM-5-TR criteria for a Major Depressive Disorder and currently experiencing a Major Depressive Episode (MDE) without ...

Countries:Canada
Unlock Eligibility Criteria