Poop pills for depression? new trial tests gut bacteria fix

NCT ID NCT06692361

First seen Jan 04, 2026 · Last updated May 07, 2026 · Updated 23 times

Summary

This study tests whether fecal microbiota transplantation (FMT) — transferring gut bacteria from a healthy donor — can help adults with major depression who don't get better soon after starting antidepressants. About 214 participants will receive either FMT or a placebo, and researchers will check if depression symptoms improve after 4 weeks. The goal is to see if changing gut bacteria can ease depression when standard treatments fall short.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-••••

Locations

  • Beijing Anding Hospital

    RECRUITING

    Beijing, Beijing Municipality, 100088, China

    Contact Phone: •••-•••-••••

  • Nangfang Hospital Affiliated of Southern Medical University

    NOT_YET_RECRUITING

    Guangzhou, Guangdong, 510450, China

  • Shandong Daizhuang Hospital

    RECRUITING

    Jining, Shandong, 272000, China

  • The First Affiliated Hospital of Hebei Medical University

    RECRUITING

    Shijiazhuang, Hebei, 050000, China

  • The First Affiliated Hospital of Zhejiang University

    RECRUITING

    Hangzhou, Zhejiang, 310000, China

  • The Second People's Hospital of Dali Bai Autonomous Prefecture

    RECRUITING

    Dali, Yunnan, 671003, China

  • Tianjin Anding Hospital

    RECRUITING

    Tianjin, Tianjin Municipality, 300202, China

  • West China Hospital Affiliated of Sichuan University

    RECRUITING

    Chengdu, Sichuan, 610041, China

  • Wuhu Fourth People's Hospital

    RECRUITING

    Wuhu, Anhui, 241002, China

Conditions

Explore the condition pages connected to this study.