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A Study to Assess the Efficacy and Safety of REL-1017 as Adjunctive Treatment for Major Depressive Disorder (MDD)

A Phase 3, Multicenter, Randomized, Double-Blind, Placebo- Controlled Study to Assess the Efficacy and Safety of REL-1017 as Adjunctive Treatment of Major Depressive Disorder (The RELIANCE-II Study)

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04855747
Acronym
RELIANCE-II
Enrollment
236
Registered
2021-04-22
Start date
2021-03-30
Completion date
2025-01-14
Last updated
2026-07-10

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

Conditions

Depression, Major Depressive Disorder

Keywords

REL-1017, Relmada, NMDA Receptor Antagonist, Esmethadone, Adjunctive, Antidepressant, Reliance, Depression

Brief summary

This is an outpatient, 2-arm, Phase 3, multicenter, randomized, double-blind, placebo-controlled study to assess the efficacy and safety of REL-1017 once daily (QD) as an adjunctive treatment of Major Depressive Disorder. Study participants will continue to take their current antidepressant therapy in addition to the study drug or placebo for the duration of the treatment period.

Interventions

REL-1017 tablet

DRUGPlacebo

Placebo tablet

Sponsors

Levomecor Inc.
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Body mass index (BMI) between 18.0 and 35.0 kg/m2. * Diagnosed with Major Depressive Disorder (MDD) based on Structured Clinical Interview for DSM-5 (SCID-5) for MDD. * Current Major Depressive Episode (MDE). * Treated on approved, stable first-line anti-depressant therapy with inadequate response to 1 to 3 valid courses of treatment with a depressant medication in the current MDE.

Exclusion criteria

* Any current and primary psychiatric disorder other than Major Depressive Disorder. * Severe alcohol or substance use disorder. * History of bipolar I and II disorder, psychosis, and/or mania. * Poorly controlled diabetes as defined by HbA1c \> 7.5%, despite standard care. Subjects with HbA1c \>7.5% may continue in the study if approved by the Relmada Medical Monitor. * Having received ketamine or esketamine within 60 days prior to Screening.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline to Day 28 in MADRS Total ScoreBaseline and Day 28Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score. The MADRS is a clinician-rated scale that assesses the severity of depressive symptoms. The total score is calculated as the sum of 10 items, each scored from 0 to 6, resulting in a total score range of 0 to 60. Lower scores indicate less severe depressive symptoms and a better outcome, whereas higher scores indicate more severe depressive symptoms and a worse outcome. The outcome measure reports the change in MADRS total score from Baseline to Day 28. Change was calculated as Day 28 score minus Baseline score.

Secondary

MeasureTime frameDescription
Change From Baseline to Day 7 in MADRS Total ScoreDay 7Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score. The MADRS is a clinician-rated scale that assesses the severity of depressive symptoms. The total score is calculated as the sum of 10 items, each scored from 0 to 6, resulting in a total score range of 0 to 60. Lower scores indicate less severe depressive symptoms and a better outcome, whereas higher scores indicate more severe depressive symptoms and a worse outcome. The outcome measure reports the change in MADRS total score from Baseline to Day 7. Change was calculated as Day 7 score minus Baseline score.
Change From Baseline to Day 28 in Clinical Global Impression-Severity (CGI-S) ScoreDay 28Clinical Global Impression-Severity (CGI-S) is a clinician-rated assessment of illness severity. Scores range from 1 (normal, not at all ill) to 7 (among the most extremely ill patients). Lower scores indicate less severe illness and a better outcome, whereas higher scores indicate more severe illness and a worse outcome. The outcome measure reports the change in CGI-S score from Baseline to Day 28. Change was calculated as Day 28 score minus Baseline score
MADRS10 Remission Rate at Day 28Day 28Remission was defined as a Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score ≤10 at Day 28. The MADRS total score ranges from 0 to 60, with lower scores indicating less severe depressive symptoms and a better outcome.
MADRS10 Response Rate at Day 28Day 28Response was defined as a ≥50% reduction from Baseline in Montgomery-Åsberg Depression Rating Scale (MADRS) Total Score. The MADRS total score ranges from 0 to 60, with lower scores indicating less severe depressive symptoms and a better outcome.

Countries

United States

Contacts

STUDY_DIRECTORPaul Greene, PhD

Relmada Therapeutics

Baseline characteristics

Characteristic
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
236 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
24 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
80 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
4 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
7 Participants
Race (NIH/OMB)
Black or African American
15 Participants
Race (NIH/OMB)
More than one race
3 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
194 Participants
Sex: Female, Male
Female
89 Participants
Sex: Female, Male
Male
33 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 1190 / 117
other
Total, other adverse events
47 / 11957 / 117
serious
Total, serious adverse events
0 / 1190 / 117

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 11, 2026