# A Pilot Study of the Effects of BCG Immunization on CSF and Blood-based Biomarkers in Older Adults.

> **NCT04507126** · PHASE2 · COMPLETED · sponsor: **Massachusetts General Hospital** · enrollment: 20 (actual)

## Conditions studied

- Healthy

## Interventions

- **BIOLOGICAL:** Bacillus Calmette-Guerin (BCG)

## Key facts

- **NCT ID:** NCT04507126
- **Lead sponsor:** Massachusetts General Hospital
- **Sponsor class:** OTHER
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-03-01
- **Primary completion:** 2022-12-09
- **Final completion:** 2022-12-09
- **Target enrollment:** 20 (ACTUAL)
- **Last updated:** 2025-12-12


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04507126

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04507126, "A Pilot Study of the Effects of BCG Immunization on CSF and Blood-based Biomarkers in Older Adults.". Retrieved via AI Analytics 2026-07-06 from https://api.ai-analytics.org/clinical/NCT04507126. Licensed CC0.

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