# Efficacy Study of Early Versus Late Oseltamivir Administration for Treating and Preventing Influenza

> **NCT00555893** · NA · COMPLETED · sponsor: **Marshfield Clinic Research Foundation** · enrollment: 194 (actual)

## Conditions studied

- Influenza

## Interventions

- **DRUG:** Oseltamivir
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT00555893
- **Lead sponsor:** Marshfield Clinic Research Foundation
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2008-01
- **Primary completion:** 2011-02
- **Final completion:** 2011-02
- **Target enrollment:** 194 (ACTUAL)
- **Last updated:** 2018-10-16

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00555893

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00555893, "Efficacy Study of Early Versus Late Oseltamivir Administration for Treating and Preventing Influenza". Retrieved via AI Analytics 2026-07-26 from https://api.ai-analytics.org/clinical/NCT00555893. Licensed CC0.

---

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