Clinical TrialParallelDepressive DisordersPsilocybinCompleted

RE104 Safety and Efficacy Study in Postpartum Depression

This Phase II, randomised, triple-blind, active-dose-controlled trial (n=84) evaluated a single subcutaneous dose of RE104 in adults with moderate-to-severe postpartum depression. Participants received either 30 mg RE104 or a 1.5 mg active-control dose in a parallel-group design. The primary outcome compared change from baseline in Montgomery-Åsberg Depression Rating Scale total score between the two dose groups at Day 7. Secondary assessments examined depressive response and remission, clinical global improvement, anxiety symptoms and treatment-emergent adverse events through 28 days after dosing.

Target Enrollment
84 participants
Study Type
Phase II interventional
Design
Randomized, triple Blind

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Detailed Description

The purpose of this study is to determine if treatment with a single dose of RE104 for Injection reduces depressive symptoms in participants with moderate-to-severe postpartum depression (PPD) as compared to active-control.

Study Arms & Interventions

RE104 1.5 mg

active comparator

A single subcutaneous injection of 1.5 mg RE104 for Injection

Interventions

  • Psilocybin1.5 mg
    via Subcutaneoussingle dose1 doses total

    Luvesilocin (RE104); represented under Blossom’s Psilocybin compound record.

RE104 30 mg

experimental

A single subcutaneous injection of 30 mg RE104 for Injection

Interventions

  • Psilocybin30 mg
    via Subcutaneoussingle dose1 doses total

    Luvesilocin (RE104); represented under Blossom’s Psilocybin compound record.

Participants

Ages
1845
Sexes
female

Inclusion Criteria

  • Is ≤15 months postpartum at Screening.
  • Meet DSM-5 criteria for postpartum depression (PPD): experiencing a major depressive episode that began at any time starting at the beginning of the second trimester (≥14 weeks) of pregnancy through 4 weeks post delivery.
  • Has a Hamilton Depression Scale (HAM-D) total score meeting severity threshold at Screening and Baseline.
  • Is not using any psychotropic medications or psychotherapy for 30 days prior to Screening, OR are on an already stable/established regimen of SSRIs or psychotherapy for 30 days prior to Screening.
  • Has ceased breastfeeding at Screening.
  • Has a negative pregnancy test at Screening and Day 0 prior to study drug administration.

Exclusion Criteria

  • History or active postpartum psychosis per Investigator assessment.
  • History of treatment-resistant depression within the current postpartum depressive episode.
  • Has a significant risk of suicide.
  • Active or medical history of bipolar disorder, schizophrenia, schizoaffective disorder, psychotic disorder and/or borderline personality disorder, or first-degree family history of psychosis or bipolar disorder.
  • Medically significant condition rendering unsuitability for the study .
  • Has received electroconvulsive therapy (ECT) or transcranial magnetic stimulation within 90 days prior to Screening.
  • Has used psychedelics such as psilocybin, ayahuasca, mescaline, or LSD (with the exception of cannabis) within 12 months prior to Screening.
  • Has used or will need to use prohibited medications.

Study Protocol, Arms & Participants

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Study Details

  • Status
    Completed
  • Phase
    Phase II
  • Type
    interventional
  • Design
    Randomizedtriple Blind
  • Target Enrollment84 participants
  • Timeline
    Start: 2024-06-14
    End: 2025-06-16
  • Compound
  • Topic

Study Team

Sponsors & Collaborators

Locations

Reunion Investigational SiteBirmingham, Alabama, United States
Reunion Investigational SiteTucson, Arizona, United States
Reunion Investigational SiteSanta Monica, California, United States
Reunion Investigational SiteBoulder, Colorado, United States
Reunion Investigational SiteDenver, Colorado, United States
Reunion Investigational SiteLauderhill, Florida, United States
Reunion Investigational SiteTampa, Florida, United States
Reunion Investigational SiteAtlanta, Georgia, United States
Reunion Investigational SiteAtlanta, Georgia, United States
Reunion Investigational SiteDecatur, Georgia, United States
Reunion Investigational SiteMarietta, Georgia, United States
Reunion Investigational SiteSavannah, Georgia, United States
Reunion Investigational SiteHonolulu, Hawaii, United States
Reunion Investigational SiteKansas City, Kansas, United States
Reunion Investigational SiteShreveport, Louisiana, United States
Reunion Investigational SiteBaltimore, Maryland, United States
Reunion Investigational SiteRockville, Maryland, United States
Reunion Investigational SiteSpringfield, Massachusetts, United States
Reunion Investigational SiteNovi, Michigan, United States
Reunion Investigational SiteAlbuquerque, New Mexico, United States
Reunion Investigational SiteBuffalo, New York, United States
Reunion Investigational SiteNew York, New York, United States
Reunion Investigational SiteNew York, New York, United States
Reunion Investigational SiteChapel Hill, North Carolina, United States
Reunion Investigational SiteMonroe, North Carolina, United States
Reunion Investigational SiteCleveland, Ohio, United States
Reunion Investigational SiteColumbus, Ohio, United States
Reunion Investigational SiteWest Chester, Pennsylvania, United States
Reunion Investigational SiteAustin, Texas, United States
Reunion Investigational SiteAustin, Texas, United States
Reunion Investigational SiteAustin, Texas, United States
Reunion Investigational SitePlano, Texas, United States
Reunion Investigational SiteSan Antonio, Texas, United States
Reunion Investigational SiteDraper, Utah, United States
Reunion Investigational SiteSalt Lake City, Utah, United States
Reunion Investigational SiteCharlottesville, Virginia, United States
Reunion Investigational SiteSeattle, Washington, United States
Reunion Investigational SiteMadison, Wisconsin, United States

Recent activity

  • CompletedRE104 Safety and Efficacy Study in Postpartum Depression (NCT06342310, psilocybin)
  • StartedRE104 Safety and Efficacy Study in Postpartum Depression (NCT06342310, psilocybin)

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