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Phase 2 Study of NV-5138 in Adults With Treatment Resistant Depression

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

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05066672
Enrollment
250
Registered
2021-10-04
Start date
2022-01-18
Completion date
2025-01-21
Last updated
2026-04-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Treatment Resistant Depression

Brief summary

This study will evaluate the efficacy and safety of NV-5138 in adults with TRD

Detailed description

The is a multicenter, randomized, double-blind, flexible- dose, placebo-controlled, parallel design of adjunctive NV-5138 in adults with TRD.

Interventions

NV-5138 is a novel, orally bioavailable, selective, direct enhancer of mTORC1 cellular signaling

DRUGmatched placebo

matched placebo oral capsules

Sponsors

Navitor Pharmaceuticals, Inc.
Lead SponsorINDUSTRY
Supernus Pharmaceuticals, Inc.
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Masking description

matched placebo

Intervention model description

randomized, double-blind, placebo-controlled

Eligibility

Sex/Gender
ALL
Age
18 Years to 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.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline to Week 4 in the Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score.Baseline to Week 4MADRS 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

MeasureTime frameDescription
Change From Baseline to Each Scheduled Week in the Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score.Baseline to Weeks 1, 2 and 3MADRS 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.
Change From Baseline to Each Scheduled Week in the Clinical Global Impression - Severity of Illness Score (CGI-S).Baseline to Weeks 1, 2, 3 and 4CGI-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.
Change From Baseline to Each Scheduled Week in the The Hamilton Depression Rating Scale - 6 Items (HAM-D6) Total Score.Baseline to Weeks 1, 2, 3 and 4The 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.
Suicidal Ideation and Behavior as Measured by the Columbia-Suicide Severity Rating Scale (C-SSRS)Baseline to Weeks 1, 2, 3 and 4C-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.

Countries

United States

Contacts

STUDY_DIRECTORThomas Laage, MD

Medical Monitor

Baseline characteristics

Characteristic
Age, Continuous48.2 years
STANDARD_DEVIATION 13.91
CGI-S4.7 units on a scale
STANDARD_DEVIATION 0.54
Ethnicity (NIH/OMB)
Hispanic or Latino
63 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
183 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
2 Participants
HAM-D6 Total Score11.9 units on a scale
STANDARD_DEVIATION 2.08
MADRS Total Score33.3 units on a scale
STANDARD_DEVIATION 4.65
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants
Race (NIH/OMB)
Asian
5 Participants
Race (NIH/OMB)
Black or African American
17 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
Race (NIH/OMB)
White
204 Participants
Region of Enrollment
United States
126 Participants
Sex: Female, Male
Female
162 Participants
Sex: Female, Male
Male
50 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 1260 / 122
other
Total, other adverse events
28 / 12628 / 122
serious
Total, serious adverse events
1 / 1262 / 122

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 18, 2026