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Efficacy and Safety of Sertraline Combined With Lactobacillus Crispatus in Adolescents With Depression

NCT07539805 · Status: NOT_YET_RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2026-05-28

No results posted yet for this study

Summary

The goal of this clinical trial is to evaluate the efficacy and safety of sertraline combined with Lactobacillus crispatus in adolescents aged 12-18 years with major depressive disorder. The main question it aims to answer is: Whether sertraline combined with Lactobacillus crispatus is superior to sertraline combined with placebo in reducing depressive symptoms and improving emotional symptoms in adolescents with depression.

If there is a comparison group: Researchers will compare sertraline combined with Lactobacillus crispatus with sertraline combined with placebo ( look-alike substance that contains no probiotics) to determine whether the addition of Lactobacillus crispatus provides greater therapeutic benefit in adolescents with depression.

Participants will: 1. Receive sertraline combined with Lactobacillus crispatus or sertraline combined with placebo for 8 weeks; 2. Attend clinic visits every 4 weeks for clinical assessments and safety monitoring

Conditions

  • Major Depressive Disorder (MDD)
  • Probiotic Intervention

Interventions

COMBINATION_PRODUCT

Sertraline combined with Lactobacillus crispatus

Phase 1 (Weeks 1-4): Sertraline will be initiated at 25 mg/day and titrated according to clinical judgment, with a permissible dose range of 25-150 mg/day. By Week 4, the sertraline dose will reach a minimum of 150 mg/day. Concomitantly, Lactobacillus crispatus powder will be administered at 1 sachet/day (1×10⁹ CFU/sachet). Phase 2 (Weeks 5-8): Sertraline will be maintained at 150-200 mg/day, with dose adjustments guided by the psychiatrist's clinical judgment. Lactobacillus crispatus powder will remain at 1 sachet/day (1×10⁹ CFU/sachet).

COMBINATION_PRODUCT

Sertraline combined with placebo

Phase 1 (Weeks 1-4): Sertraline will be initiated at 25 mg/day based on the psychiatrist's clinical assessment, with a permissible dose range of 25-150 mg/day. By Week 4, the sertraline dose will attain at least 150 mg/day, with concomitant placebo powder at 1 sachet/day. Phase 2 (Weeks 5-8): Sertraline will be maintained at 150-200 mg/day, with dose adjustments guided by the psychiatrist's clinical assessment. Placebo powder will be maintained at 1 sachet/day.

Sponsors & Collaborators

  • First Affiliated Hospital of Chongqing Medical University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
12 Years
Max Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-05-31
Primary Completion
2028-02-29
Completion
2028-04-30

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07539805 on ClinicalTrials.gov