# Study of GRT-R910 COVID-19 Boost Vaccine in Healthy Volunteers

> **NCT05148962** · PHASE1 · COMPLETED · sponsor: **Gritstone bio, Inc.** · enrollment: 45 (actual)

## Conditions studied

- COVID-19

## Interventions

- **BIOLOGICAL:** GRT-R910

## Key facts

- **NCT ID:** NCT05148962
- **Lead sponsor:** Gritstone bio, Inc.
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-09-16
- **Primary completion:** 2023-05-26
- **Final completion:** 2023-05-26
- **Target enrollment:** 45 (ACTUAL)
- **Last updated:** 2024-12-11


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05148962

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05148962, "Study of GRT-R910 COVID-19 Boost Vaccine in Healthy Volunteers". Retrieved via AI Analytics 2026-07-20 from https://api.ai-analytics.org/clinical/NCT05148962. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*