Clinical trial Recruiting at 50 sites Phase 3 Interventional Ages 18 to 65

Evaluating milsaperidone for treating major depressive disorder

Official title: A Randomized, Double-Blind, Placebo-controlled Multicenter Study to Assess the Efficacy and Safety of Milsaperidone as Adjunctive Therapy in the Treatment of Patients With Major Depressive Disorder

Run by Vanda Pharmaceuticals · NCT06830044 · Data updated 2026-11-12

This study is testing if adding milsaperidone to the treatment plan can help people with major depressive disorder who haven't felt better with their current antidepressants.

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years to 65 Years
SexAll
Enrollment500 (estimated)
SponsorVanda Pharmaceuticals
Industry-sponsored
Locations53 sites (Phoenix, Arizona and 52 other locations)
StatusRecruiting
StartedMarch 3, 2025
Main results expectedMarch 2028
Study endsMarch 2028
Registry record updatedSeptember 24, 2026
Trial IDNCT06830044 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 to 65 who meet the criteria for MDD and have not responded adequately to current antidepressant treatments.

Probably not a fit

Patients with other primary psychiatric diagnoses or those who have had significant psychiatric conditions in the past year may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study aims to assess the efficacy and safety of milsaperidone as an adjunctive therapy for patients diagnosed with Major Depressive Disorder (MDD) who have not responded adequately to current antidepressant treatments. Participants will be randomly assigned to receive either milsaperidone or a placebo, with their responses monitored over the course of the trial. The study will utilize the Antidepressant Treatment Response Questionnaire to confirm inadequate response to existing therapies. The goal is to determine if milsaperidone can provide additional benefits in managing MDD symptoms.

Why it matters

Potential benefit: If successful, this treatment could offer new hope for patients with MDD who have not found relief with standard antidepressant therapies.

How similar studies have gone: While this approach is being evaluated in this trial, similar studies have shown promise in exploring adjunctive therapies for MDD.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Male or female patient 18 to 65 years of age, inclusive;
* Meets DSM-5-TR criteria for MDD
* Currently having an inadequate response to antidepressant therapy as confirmed by the Investigator using the Antidepressant Treatment Response Questionnaire (ATRQ)

Exclusion Criteria:

* Within the patients lifetime, has a confirmed DSM-5-TR psychiatric diagnosis other than MDD
* Within 6 months of Screening, has a confirmed DSM-5-TR psychiatric diagnosis other than MDD
* Within 12 months of Screening, has had any other psychiatric condition (other than MDD) that has been the main focus of treatment

Where it's running

  • Vanda Investigational Site
    Phoenix, Arizona, United States
    Recruiting
  • Vanda Investigational Site
    Little Rock, Arkansas, United States
    Recruiting
  • Vanda Investigational Site
    Garden Grove, California, United States
    Recruiting
  • Vanda Investigational Site
    Orange, California, United States
    Recruiting
  • Vanda Investigational Site
    Redlands, California, United States
    Recruiting
  • Vanda Investigational Site
    San Jose, California, United States
    Recruiting
Show 44 more locations
  • Vanda Investigational Site
    Walnut Creek, California, United States
    Recruiting
  • Vanda Investigational Site
    Colorado Springs, Colorado, United States
    Recruiting
  • Vanda Investigational Site
    Fort Myers, Florida, United States
    Recruiting
  • Vanda Investigational Site
    Miami, Florida, United States
    Recruiting
  • Vanda Investigational Site
    Snellville, Georgia, United States
    Recruiting
  • Vanda Investigational Site
    Chicago, Illinois, United States
    Recruiting
  • Vanda Investigational Site
    Carmel, Indiana, United States
    Recruiting
  • Vanda Investigational Site
    Boston, Massachusetts, United States
    Recruiting
  • Vanda Investigational Site
    Saint Charles, Missouri, United States
    Recruiting
  • Vanda Investigational Site
    Las Vegas, Nevada, United States
    Recruiting
  • Vanda Investigational Site
    New York, New York, United States
    Recruiting
  • Vanda Investigational Site
    New York, New York, United States
    Recruiting
  • Vanda Investigational Site
    Staten Island, New York, United States
    Recruiting
  • Vanda Investigational Site
    Charlotte, North Carolina, United States
    Recruiting
  • Vanda Investigational Site
    Cincinnati, Ohio, United States
    Recruiting
  • Vanda Investigational Site
    Houston, Texas, United States
    Recruiting
  • Vanda Investigational Site
    Plano, Texas, United States
    Recruiting
  • Vanda Investigational Site
    Richardson, Texas, United States
    Recruiting
  • Vanda Investigational Site
    Witchita Falls, Texas, United States
    Recruiting
  • Vanda Investigational Site
    Bellevue, Washington, United States
    Recruiting
  • Vanda Investigational Site
    Kardzhali, Bulgaria
    Recruiting
  • Vanda Investigational Site
    Pleven, Bulgaria
    Recruiting
  • Vanda Investigational Site
    Plovdiv, Bulgaria
    Recruiting
  • Vanda Investigational Site
    Sofia, Bulgaria
    Recruiting
  • Vanda Investigational Site
    Sofia, Bulgaria
    Recruiting
  • Vanda Investigational Site
    Sofia, Bulgaria
    Recruiting
  • Vanda Investigational Site
    Targovishte, Bulgaria
    Recruiting
  • Vanda Investigational Site
    Varna, Bulgaria
    Recruiting
  • Vanda Investigational Site
    Vratsa, Bulgaria
    Recruiting
  • Vanda Investigational Site
    Brno, Czechia
    Recruiting
  • Vanda Investigational Site
    Pilsen, Czechia
    Recruiting
  • Vanda Investigational Site
    Poruba, Czechia
    Recruiting
  • Vanda Investigational Site
    Prague, Czechia
    Recruiting
  • Vanda Investigational Site
    Prague, Czechia
    Recruiting
  • Vanda Investigational Site
    Prague, Czechia
    Recruiting
  • Vanda Investigational Site
    Prague, Czechia
    Recruiting
  • Vanda Investigational Site
    Bialystok, Poland
    Recruiting
  • Vanda Investigational Site
    Bialystok, Poland
    Recruiting
  • Vanda Investigational Site
    Bydgoszcz, Poland
    Recruiting
  • Vanda Investigational Site
    Gdansk, Poland
    Recruiting
  • Vanda Investigational Site
    Katowice, Poland
    Recruiting
  • Vanda Investigational Site
    Katowice, Poland
    Recruiting
  • Vanda Investigational Site
    Suchy Las, Poland
    Recruiting
  • Vanda Investigational Site
    Torun, Poland
    Recruiting

+3 more sites. See ClinicalTrials.gov for the full list.

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.