# Butantan-DV Vaccine in Elderly Populations (DEN-04-IB)

> **NCT06891950** · PHASE3 · RECRUITING · sponsor: **Butantan Institute** · enrollment: 997 (estimated)

## Conditions studied

- Dengue

## Interventions

- **BIOLOGICAL:** Dengue 1,2,3,4 (attenuated) vaccine

## Key facts

- **NCT ID:** NCT06891950
- **Lead sponsor:** Butantan Institute
- **Sponsor class:** OTHER_GOV
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2026-03-03
- **Primary completion:** 2026-06
- **Final completion:** 2026-10
- **Target enrollment:** 997 (ESTIMATED)
- **Last updated:** 2026-03-06

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT06891950

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT06891950, "Butantan-DV Vaccine in Elderly Populations (DEN-04-IB)". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT06891950. Licensed CC0.

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