# A Study to Learn About Different Dosing Schedules of a Lyme Disease Vaccine in Healthy Adults

> **NCT07226882** · PHASE3 · ACTIVE_NOT_RECRUITING · sponsor: **Pfizer** · enrollment: 207 (actual)

## Conditions studied

- Lyme Borreliosis

## Interventions

- **BIOLOGICAL:** VLA15
- **BIOLOGICAL:** Placebo

## Key facts

- **NCT ID:** NCT07226882
- **Lead sponsor:** Pfizer
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2025-11-19
- **Primary completion:** 2028-01-27
- **Final completion:** 2028-01-27
- **Target enrollment:** 207 (ACTUAL)
- **Last updated:** 2026-05-06


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07226882

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07226882, "A Study to Learn About Different Dosing Schedules of a Lyme Disease Vaccine in Healthy Adults". Retrieved via AI Analytics 2026-09-21 from https://api.ai-analytics.org/clinical/NCT07226882. Licensed CC0.

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