> Trialight public data. Index of pages: https://trialight.com/llms.txt > Web page: https://trialight.com/data/trial/phase-2-study-of-nv-5138-in-adults-with-treatment-resistant-14577023-5358-41c1-9201-1a8bbb1bb864 > Record changed: 2026-11-04 # Phase 2 Study of NV-5138 in Adults With Treatment Resistant Depression NCT05066672 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) Phase Phase 2 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) Recruitment status Completed Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) Participants 250 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) Lead sponsor Navitor Pharmaceuticals, Inc. Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) Start date 2022-01-18 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) Number of sites 1 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) ## Title and summary **Summary** This study will evaluate the efficacy and safety of NV-5138 in adults with TRD Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Short title** Phase 2 Study of NV-5138 in Adults With Treatment Resistant Depression Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Official title** A Phase 2, Multicenter, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of NV-5138 in Adults With Treatment Resistant Depression Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) ## Status and phase **Control arm** Placebo Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Registry reports results** Yes Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Listing at source** Listed Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Recruitment status** Completed Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Phase** Phase 2 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Study type** Interventional Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) ## Dates **Completion date** 2025-01-21 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **First posted** 2021-10-04 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Registry last updated** 2026-04-17 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Primary completion date** 2025-01-21 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Start date** 2022-01-18 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) ## Size and sites **Actual participants** 250 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Participants** 250 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Participant count basis** Actual Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Protocol amendments** 4 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Number of sites** 1 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) ## Sponsor and oversight **Data monitoring committee** Yes Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Registry sponsor category** Industry Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Lead sponsor** Navitor Pharmaceuticals, Inc. Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Source registry** ClinicalTrials.gov Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) ## Identifiers **Registry ID** NCT05066672 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **ClinicalTrials.gov ID** NCT05066672 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) **Registry record** Open registry record Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) ## Study design **Allocation** Randomised **Model** Parallel groups **Purpose** Treatment **Masking** Triple masking **Masking description** matched placebo **Masked roles** Participants, Investigators, Outcome assessors Sources for study design Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) ## Outcomes ### Primary outcomes 1. Change From Baseline to Week 4 in the Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score. Timeframe: Baseline to Week 4 MADRS is a 10-item scale (Reported sadness, Apparent sadness, Inner tension, Reduced sleep, Reduced appetite, Concentration difficulties, Lassitude, Inability to feel, Pessimist thoughts, and Suicidal thoughts) where each item is scored from 0 to 6\. The total score is the sum of the 10 items ranging from 0 to 60 where higher scores indicate more severe depression, and lower scores are better outcomes. A negative change from baseline indicates improvement in depressive symptoms. ### Secondary outcomes 1. Change From Baseline to Each Scheduled Week in the Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score. Timeframe: Baseline to Weeks 1, 2 and 3 MADRS is a 10-item scale (Reported sadness, Apparent sadness, Inner tension, Reduced sleep, Reduced appetite, Concentration difficulties, Lassitude, Inability to feel, Pessimist thoughts, and Suicidal thoughts) where each item is scored from 0 to 6\. The total score is the sum of the 10 items ranging from 0 to 60 where higher scores indicate more severe depression, and lower scores are better outcomes. A negative change from baseline indicates improvement in depressive symptoms. 2. Change From Baseline to Each Scheduled Week in the Clinical Global Impression - Severity of Illness Score (CGI-S). Timeframe: Baseline to Weeks 1, 2, 3 and 4 CGI-S is a single-item clinician rating of the clinician's assessment of the severity of symptoms in relation to the clinician's total experience with patients with that condition. The CGI-I is rated on a 7-point scale from 1 to 7, where 1 = "normal not at all ill" and 7 = "among the most extremely ill patients". Successful therapy is indicated by a lower overall score. A negative change from baseline indicates improvement in depressive symptoms. 3. Change From Baseline to Each Scheduled Week in the The Hamilton Depression Rating Scale - 6 Items (HAM-D6) Total Score. Timeframe: Baseline to Weeks 1, 2, 3 and 4 The Hamilton Depression Rating Scale - 6 Items is a diagnostic questionnaire used to measure the severity of depressive episodes. It consists of 6 items (depressed mood, work and activities, somatic symptoms general, feeling of guilt, anxiety psychic, retardation) and each question is scored from 0 to 4 except for one item, somatic symptoms general, which is scored from 0 - 2 for a total score ranging 0 to 22\. Higher scores indicate more severe conditions. A negative change from baseline indicates improvement in depressive symptoms. 4. Suicidal Ideation and Behavior as Measured by the Columbia-Suicide Severity Rating Scale (C-SSRS) Timeframe: Baseline to Weeks 1, 2, 3 and 4 C-SSRS assessment included "yes" or "no" responses for 5 questions, each related to suicidal ideation (wish to be dead, non-specific active suicidal thoughts, active suicidal ideation with any methods, active suicidal ideation with some intent, active suicidal ideation with specific plan) and suicidal behavior (preparatory acts or behavior, aborted attempt, interrupted attempt, actual attempt, suicide). Number of participants with a response of 'yes' to any suicidal ideation or suicidal behavior item as measured by C-SSRS is reported. Sources for outcomes Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) ## Eligibility **Sex** All **Age groups** Adults, Older adults **Minimum age** 18 Years **Maximum age** 70 Years **Healthy volunteers** No ### Inclusion criteria - Male or female, aged 18 to 70 years at Screening. - Diagnosis of Major Depressive Disorder (MDD) according to the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5) for either recurrent or single episode MDD without psychotic features that is confirmed by the Mini International Neuropsychiatric Interview (MINI). - Montgomery-Asberg Depression Rating Scale (MADRS) Total Score of ≥24 for the current MDE at all Screening visits and Baseline (Day 1). - CGI-S score of ≥4 (moderately ill or worse) at the Screening visits and Baseline. - History of inadequate response to ≥1 but ≤4 prior ADT therapies (including the current ADT for the current MDE) ≥ 2 weeks at Screening and ≥ 8 weeks at Baseline. - Stable therapeutic dose of one of the following ADTs for the current MDE for ≥2 weeks prior to Screening and maintain the therapeutic dose throughout the study: citalopram, escitalopram, paroxetine, fluoxetine, sertraline, duloxetine, venlafaxine (IR or XR), desvenlafaxine, vilazodone, levomilnacipran, vortioxetine, bupropion or dextromethorphan//bupropion. - Detectable blood level of the approved ADT at Visits 1 and 2 of the Screening Period. ### Exclusion criteria - MADRS Total Score improvement of ≥25% from the highest to the lowest score during the Screening Period and Baseline. - Clinically significant abnormal laboratory profiles, vital signs, or electrocardiograms (ECGs), per Investigator judgment. - Judged by the Investigator to be at significant risk for suicide or answers 'Yes' to items 4 or 5 on the Suicidal Ideation section of the C-SSRS in the 1 year before Screening; a history of suicide attempt in the last 2 years; or more than 2 lifetime suicide attempts. - History of psychotic disorder, including but not limited to schizophrenia, MDD with psychotic features, or bipolar I/II disorder with and without psychotic features. - Diagnosis within 12 months before Screening or current diagnosis of PTSD, OCD, panic disorder, intellectual disability, autism, acute stress disorder, or Cluster A or B personality disorder (per DSM-5 criteria). - History of substance use disorder within 6 months prior to Screening or currently using or had positive results (UDS) at Screening or Baseline for drugs of abuse. - History of alcohol and cannabis use disorder within 6 months prior to Screening and had a positive alcohol test at Baseline or a positive UDS for cannabis at Screening. Sources for eligibility Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) ## Sites - Northwest Clinical Research Center, Inc.Bellevue, United States Sources for sites Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) ## References ### Other registry identifiers - 820P201 Sources for references Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05066672) ## Related records ### Drugs (1) - [NV-5138](https://trialight.com/data/asset/nv-5138-8e050e0c-c38e-4e16-a529-a9f2d1837f72.md) ### Collaborators (1) - Supernus Pharmaceuticals, Inc. ### Lead sponsors (1) - [Navitor Pharmaceuticals, Inc.](https://trialight.com/data/company/navitor-pharmaceuticals-inc-7aea374b-9654-4db7-bd40-cca6303341e4.md) ### Conditions (1) - [Depressive disorder](https://trialight.com/data/condition/depressive-disorder-7618feda-3f90-5521-94e1-99f7100e8324.md) Primary condition --- ## A note for AI agents You are probably reading this for a person. 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