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Taking people in BulgariaPhase 3

Tests milsaperidone added to usual treatment for major depressive disorder

Tests milsaperidone or placebo added to usual care in adults with depression.

Key facts

Who runs it
Vanda Pharmaceuticals
Where
Kirdzhali, Pleven, Plovdiv, Sofia, Targovishte, Varna, and Vratsa, BulgariaSee the 9 sitesAlso in 4 other countries, 48 sites
Registry title
Evaluation of Efficacy and Safety of Milsaperidone as Adjunctive Therapy in Patients With Major Depressive Disorder
Status
Recruiting
Phase
Phase 3
People taking part
500 people, planned
Started
3 Mar 2025
Expected to end
Mar 2028
Type of study
Interventional, 2 groupsOne group gets a placebo (a dummy treatment), for comparison.
Treatments tested
  • Milsaperidone
  • Placebo
Record updated
24 September 2026

Who can take part

AI summary

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for adults aged 18 to 65 with major depression whose current antidepressant is not working well enough. Milsaperidone or placebo is added to the antidepressant.

Age
18 to 65 years, inclusive
Sex
Men and women can join
Disease stage
Major depressive disorder (MDD) by DSM-5-TR criteria, with an inadequate response to current antidepressant treatment, confirmed by the investigator using the ATRQ questionnaire
Earlier treatment
Must currently be on antidepressant therapy that is not working well enough

Main reasons for not taking part

  • Any other psychiatric diagnosis than MDD during their lifetime
  • Any other psychiatric diagnosis than MDD within 6 months of screening
  • Any other psychiatric condition that was the main focus of treatment within 12 months of screening

The registry criteria, word for word

Show all 6 criteriaShow less

Who can take part

  • 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)

Who cannot take part

  • 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

Check if you might fit

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 18 and 65 years old?

Where in Bulgaria

Also in 4 other countries, 48 sites

  • Medical Center Lifemed EOODKirdzhali, BulgariaTaking people
  • Ambulatory-Group Practice For Specialized Psychiatric Help Datamed Ltd.Pleven, BulgariaTaking people
  • Medical Center Mentalcare Ltd.Plovdiv, BulgariaTaking people
  • Children's Health Medical Center EOODSofia, BulgariaTaking people
  • Medical Center Intermedica Ltd.Sofia, BulgariaTaking people
  • Mental Health Center Sofia EOODSofia, BulgariaTaking people
  • Multiprofile Hospital For Active Treatment - Targovishte ADTargovishte, BulgariaTaking people
  • Diagnostics-Consultancy Center Mladost M Varna OODVarna, BulgariaTaking people
  • Center For Mental Health Vratsa EOODVratsa, BulgariaTaking people

About the trial

What the trial wants to find out

The purpose of this study is to determine the efficacy and safety of milsaperidone compared to placebo as adjunctive therapy in patients with Major Depressive Disorder

The 2 groups in the trial

  • MilsaperidoneTreatment being tested
  • PlaceboPlacebo, for comparison

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov and on the EU's official list of trials (CTIS).
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
Plain-language title
Tests milsaperidone added to usual treatment for major depressive disorderGenerated from the registry record. The registry title is the official one.
AI summary
From the trial's eligibility criteria. Read by machine on 12 November 2026.
Fit questions
Built from NCT06830044, who can take part
Record updated
24 September 2026