# Evaluation of Pandemic Influenza A (H1N1) Vaccine in Chronic and or Immunocompromised Patients, Elderly and Pregnants

> **NCT01218685** · — · COMPLETED · sponsor: **Butantan Institute** · enrollment: 1152 (actual)

## Conditions studied

- Immunocompromised Patients
- Safety of Pandemic Influenza A (H1N1)Vaccine
- Immunogenicity of Pandemic Influenza A (H1N1)Vaccine

## Interventions

- **BIOLOGICAL:** Split inactivated A/California/7/2009 (H1N1) (NYMC X-179A) VIRUS

## Key facts

- **NCT ID:** NCT01218685
- **Lead sponsor:** Butantan Institute
- **Sponsor class:** OTHER_GOV
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2010-04
- **Primary completion:** 2010-09
- **Final completion:** 2011-04
- **Target enrollment:** 1152 (ACTUAL)
- **Last updated:** 2013-02-06

## Collaborators

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## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01218685

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01218685, "Evaluation of Pandemic Influenza A (H1N1) Vaccine in Chronic and or Immunocompromised Patients, Elderly and Pregnants". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT01218685. Licensed CC0.

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