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NBI-1065845

Phase 3

Major Depressive Disorder | Small molecule | Psychiatry |Neurocrine Biosciences, Inc.|Last Updated: Jun 23, 2026

Success Probability
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Market & Valuation
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials6
Total Enrollment2,183
FDA Designations
No designations recorded
Clinical trial landscape

NBI-1065845 · 6 trials · 1 indication

Phase 3 5Phase 2 1
NCT07196501A Study to Evaluate the Maintenance Effect of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)Major Depressive Disorder
RECRUITING550 Analytics
NCT06963021NBI-1065845-MDD3026: Study to Assess the Efficacy and Safety of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)Major Depressive Disorder
RECRUITING200 Analytics
NCT06966401Long-Term Study to Assess the Safety and Tolerability of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)Major Depressive Disorder
RECRUITING850 Analytics
NCT06911112NBI-1065845-MDD3025: Study to Assess the Efficacy and Safety of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)Major Depressive Disorder
RECRUITING200 Analytics
NCT06786624Study to Assess the Efficacy and Safety of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)Major Depressive Disorder
RECRUITING200 Analytics
PHASE3RECRUITING
A Study to Evaluate the Maintenance Effect of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)
Major Depressive DisorderUnlock trial analytics
PHASE3RECRUITING
NBI-1065845-MDD3026: Study to Assess the Efficacy and Safety of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)
Major Depressive DisorderUnlock trial analytics
PHASE3RECRUITING
Long-Term Study to Assess the Safety and Tolerability of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)
Major Depressive DisorderUnlock trial analytics
PHASE3RECRUITING
NBI-1065845-MDD3025: Study to Assess the Efficacy and Safety of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)
Major Depressive DisorderUnlock trial analytics
PHASE3RECRUITING
Study to Assess the Efficacy and Safety of NBI-1065845 as an Adjunctive Treatment in Participants With Major Depressive Disorder (MDD)
Major Depressive DisorderUnlock trial analytics
Study Endpoints
Primary Endpoints
Time from Randomization to Relapse
From randomization to the earliest of relapse or end-of study (up to approximately 32 months)
Change from Baseline in Total Montgomery-Åsberg Depression Rating Scale (MADRS) Score at Day 56
Baseline, Day 56
Number of Participants with Treatment-emergent Adverse Events (TEAEs)
Baseline through Week 52
Change from Baseline in Total Montgomery Åsberg Depression Rating Scale (MADRS) Score at Day 28
Baseline, Day 28
Secondary Endpoints
Change from Baseline in Sheehan Disability Scale (SDS) Total Score at Day 56
Baseline, Day 56
Change from Baseline in Clinical Global Impression-Severity Scale (CGI-S) Score at Day 56
Baseline, Day 56
Change from Baseline in Total MADRS Score at Day 7, Day 14, and Day 56
Baseline, Days 7, 14, and 56
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Open-label Treatment Period: NBI-1065845EXPERIMENTALParticipants will be treated with NBI-1065845 during the open-label treatment period.
Randomized Double-blind Maintenance Period: NBI-1065845EXPERIMENTALParticipants will be randomized to receive NBI-1065845 during the randomized double-blind maintenance period.
Randomized Double-blind Maintenance Period: PlaceboEXPERIMENTALParticipants will be randomized to receive matching placebo during the randomized double-blind maintenance period.
NBI-1065845EXPERIMENTALNBI-1065845 administered orally once a day.
PlaceboPLACEBO_COMPARATORPlacebo identical in appearance to NBI-1065845 will be administered orally once a day.
NBI-1065845 Low DoseEXPERIMENTALParticipants will receive low-dose NBI-1065845 orally once a day.
NBI-1065845 High DoseEXPERIMENTALParticipants will receive high-dose NBI-1065845 orally once a day.
Interventions
NameTypeDescription
NBI-1065845DRUGOral tablet
PlaceboDRUGOral tablet
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Eligibility Criteria
Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites45

Key Inclusion Criteria: * Participant has a primary diagnosis of recurrent MDD (moderate or severe) or persistent depressive disorder. * Participant has had an inadequate response to oral antidepressant treatments in the current episode of depression. * Participant must have been taking oral antide...

Countries:United StatesAustraliaBulgariaCanadaEstoniaItalyPolandSerbiaSouth KoreaSpainTaiwanBelgiumFinlandHungaryLatviaUnited KingdomCroatiaCzechiaLithuaniaNetherlandsRomaniaSlovakiaSweden
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Recent Changes (Last 90 Days)
LOWJun 23, 2026NCT06963021lastUpdatePostDate: changed
LOWJun 23, 2026NCT06963021lastUpdatePostDate: changed
LOWJun 22, 2026NCT06966401lastUpdatePostDate: changed
LOWJun 22, 2026NCT06966401lastUpdatePostDate: changed
LOWMay 26, 2026NCT06786624primaryCompletionDate: changed
LOWMay 26, 2026NCT06963021primaryCompletionDate: changed
LOWMay 26, 2026NCT07196501primaryCompletionDate: changed
LOWMay 26, 2026NCT06911112primaryCompletionDate: changed
LOWMay 26, 2026NCT06966401Enrollment: 600 → 850
LOWMay 24, 2026NCT06786624studyFirstPostDate: changed
LOWMay 24, 2026NCT06911112studyFirstPostDate: changed
LOWMay 24, 2026NCT06966401studyFirstPostDate: changed
LOWMay 24, 2026NCT06963021studyFirstPostDate: changed
LOWMay 24, 2026NCT07196501studyFirstPostDate: changed