# Efficacy and Safety of Oral Lactobacillus Plantarum GUANKE (CGMCC NO.21720) in Enhancement of Antibody Level After SARS-CoV-2 Vaccination (Trial 2)

> **NCT05195047** · NA · COMPLETED · sponsor: **Peking University** · enrollment: 44 (actual)

## Conditions studied

- SARS-CoV-2

## Interventions

- **DIETARY_SUPPLEMENT:** 1 week placebo(Week 1)
- **DIETARY_SUPPLEMENT:** 1 week of probiotics(Week 1)
- **DIETARY_SUPPLEMENT:** 1 week placebo(Week 2)
- **DIETARY_SUPPLEMENT:** 1 week of probiotics(Week 2)
- **DIETARY_SUPPLEMENT:** 1 week placebo(Week 3)
- **DIETARY_SUPPLEMENT:** 1 week of probiotics(Week 3)

## Key facts

- **NCT ID:** NCT05195047
- **Lead sponsor:** Peking University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2022-02-27
- **Primary completion:** 2022-08-21
- **Final completion:** 2022-08-21
- **Target enrollment:** 44 (ACTUAL)
- **Last updated:** 2022-11-03

## Collaborators

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- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05195047

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05195047, "Efficacy and Safety of Oral Lactobacillus Plantarum GUANKE (CGMCC NO.21720) in Enhancement of Antibody Level After SARS-CoV-2 Vaccination (Trial 2)". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT05195047. Licensed CC0.

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