# Comparative Study of the Safety and Efficacy of Clarithromycin Extended-Release Tablets Versus Amoxicillin-Clavulanate for the Treatment of Acute Bacterial Sinusitis

> **NCT00644553** · PHASE3 · COMPLETED · sponsor: **Abbott** · enrollment: 437 (actual)

## Conditions studied

- Acute Bacterial Sinusitis (ABS)

## Interventions

- **DRUG:** Clarithromycin
- **DRUG:** Amoxicillin

## Key facts

- **NCT ID:** NCT00644553
- **Lead sponsor:** Abbott
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2003-05
- **Primary completion:** 2004-03
- **Final completion:** —
- **Target enrollment:** 437 (ACTUAL)
- **Last updated:** 2008-03-27


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00644553

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00644553, "Comparative Study of the Safety and Efficacy of Clarithromycin Extended-Release Tablets Versus Amoxicillin-Clavulanate for the Treatment of Acute Bacterial Sinusitis". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT00644553. Licensed CC0.

---

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