# A Multicenter, Randomized, Double-Blind, Double-Dummy Trial of Azithromycin SR Compared With Levofloxacin for the Treatment of Sinus Infections in Adults

> **NCT00643409** · PHASE3 · COMPLETED · sponsor: **Pfizer** · enrollment: 541 (actual)

## Conditions studied

- Maxillary Sinusitis

## Interventions

- **DRUG:** azithromycin SR (Zithromax; compound: CP-62,993)
- **OTHER:** placebo
- **DRUG:** levofloxacin
- **OTHER:** placebo

## Key facts

- **NCT ID:** NCT00643409
- **Lead sponsor:** Pfizer
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2003-01
- **Primary completion:** —
- **Final completion:** 2004-02
- **Target enrollment:** 541 (ACTUAL)
- **Last updated:** 2011-05-11


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00643409

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00643409, "A Multicenter, Randomized, Double-Blind, Double-Dummy Trial of Azithromycin SR Compared With Levofloxacin for the Treatment of Sinus Infections in Adults". Retrieved via AI Analytics 2026-06-10 from https://api.ai-analytics.org/clinical/NCT00643409. Licensed CC0.

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