New drug candidate offers hope for Treatment-Resistant depression

NCT ID NCT03870776

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This phase 2 study tested a daily oral drug called MAP4343 in 126 adults whose depression did not improve with standard antidepressants. Participants took either MAP4343 or a placebo for 6 weeks. The main goal was to see if the drug reduced depression symptoms more than placebo, measured by a standard rating scale. The study is complete, and results will show whether MAP4343 is safe and effective for this hard-to-treat group.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

MAP4343 (an oral drug)

What this could lead to

If it works, this could offer a new option for people with depression that doesn't respond to standard antidepressants.

What could go wrong

This is an early phase 2 trial with only 126 people, so results may not apply to everyone. The drug may not work better than placebo or could have side effects.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for DEPRESSION are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

Depression depressive disorder major depressive disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • APHP Hôpital La Pitié Salpétrière - Prinicipal investigator center

    Paris, 75013, France

  • CHD Vendée

    La Roche-sur-Yon, 85000, France

  • CHRU Tours

    Tours, 37000, France

  • CHU Angers

    Angers, 49900, France

  • CHU Besançon

    Besançon, 25000, France

  • CHU Henri Laborit

    Poitiers, 86000, France

  • CHU Nantes

    Nantes, 44000, France

  • Cabinet Médical Ambroise Paré

    Élancourt, 78990, France

  • Hôpital Fontan 1

    Lille, 59000, France

  • Hôpital Ste Anne

    Paris, 75014, France