# Probiotics on Immune Function and Intestinal Microbiota in Astronauts Under Closed Microgravity Environment

> **NCT02618005** · NA · COMPLETED · sponsor: **Yakult Honsha Co., LTD** · enrollment: 10 (actual)

## Conditions studied

- Immune Function and Intestinal Microbiota

## Interventions

- **DIETARY_SUPPLEMENT:** Probiotic capsule

## Key facts

- **NCT ID:** NCT02618005
- **Lead sponsor:** Yakult Honsha Co., LTD
- **Sponsor class:** INDUSTRY
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2015-10
- **Primary completion:** 2022-04
- **Final completion:** 2022-04
- **Target enrollment:** 10 (ACTUAL)
- **Last updated:** 2025-11-25

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02618005

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02618005, "Probiotics on Immune Function and Intestinal Microbiota in Astronauts Under Closed Microgravity Environment". Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/clinical/NCT02618005. Licensed CC0.

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