A Multicenter, Randomized, Double-Blind, Double-Dummy Trial of Azithromycin SR Compared With Clarithromycin Extended Release for the Treatment of Pneumonia in Adult Patients
Public ClinicalTrials.gov record NCT00643227. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Multicenter, Randomized, Double-Blind, Double-Dummy Comparative Trial of Azithromycin SR Versus Clarithromycin Extended Release for the Treatment of Mild to Moderate Community-Acquired Pneumonia in Adults
Study identification
- NCT ID
- NCT00643227
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- Pfizer
- Industry
- Enrollment
- 504 participants
Conditions and interventions
Conditions
Interventions
- azithromycin SR Drug
- clarithromycin extended release (ER) Drug
Drug
Eligibility (public fields only)
- Age range
- 16 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Dec 31, 2002
- Primary completion
- Not listed
- Completion
- Feb 29, 2004
- Last update posted
- Mar 25, 2008
2003 – 2004
United States locations
- U.S. sites
- 36
- U.S. states
- 13
- U.S. cities
- 27
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Pfizer Investigational Site | Birmingham | Alabama | 35215 | — |
| Pfizer Investigational Site | Birmingham | Alabama | 35242 | — |
| Pfizer Investigational Site | Haleyville | Alabama | 35565 | — |
| Pfizer Investigational Site | Montgomery | Alabama | 36106 | — |
| Pfizer Investigational Site | Montgomery | Alabama | 36109 | — |
| Pfizer Investigational Site | Tallassee | Alabama | 36078 | — |
| Pfizer Investigational Site | Mesa | Arizona | 85201 | — |
| Pfizer Investigational Site | Phoenix | Arizona | 85014 | — |
| Pfizer Investigational Site | Tempe | Arizona | 85282 | — |
| Pfizer Investigational Site | La Jolla | California | 92037 | — |
| Pfizer Investigational Site | San Diego | California | 92128 | — |
| Pfizer Investigational Site | Orlando | Florida | 32806 | — |
| Pfizer Investigational Site | Boise | Idaho | 83703 | — |
| Pfizer Investigational Site | Boise | Idaho | 83704 | — |
| Pfizer Investigational Site | Boise | Idaho | 83706 | — |
| Pfizer Investigational Site | Boise | Idaho | 83709 | — |
| Pfizer Investigational Site | Boise | Idaho | 83713 | — |
| Pfizer Investigational Site | Meridian | Idaho | 83642 | — |
| Pfizer Investigational Site | Nampa | Idaho | 83651 | — |
| Pfizer Investigational Site | Chalmette | Louisiana | 70043 | — |
| Pfizer Investigational Site | New Orleans | Louisiana | 70112 | — |
| Pfizer Investigational Site | New Orleans | Louisiana | 70128 | — |
| Pfizer Investigational Site | Butte | Montana | 59701 | — |
| Pfizer Investigational Site | Holmdel | New Jersey | 07733 | — |
| Pfizer Investigational Site | Clemmons | North Carolina | 27012 | — |
| Pfizer Investigational Site | Salisbury | North Carolina | 28144 | — |
| Pfizer Investigational Site | Winston-Salem | North Carolina | 27103 | — |
| Pfizer Investigational Site | Charleston | South Carolina | 29406 | — |
| Pfizer Investigational Site | Summerville | South Carolina | 29485 | — |
| Pfizer Investigational Site | Milan | Tennessee | 38358 | — |
| Pfizer Investigational Site | Salt Lake City | Utah | 84102 | — |
| Pfizer Investigational Site | Salt Lake City | Utah | 84109 | — |
| Pfizer Investigational Site | Salt Lake City | Utah | 84121 | — |
| Pfizer Investigational Site | Taylorsville | Utah | 84118 | — |
| Pfizer Investigational Site | West Jordan | Utah | 84088 | — |
| Pfizer Investigational Site | Casper | Wyoming | 82601 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 36 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00643227, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Mar 25, 2008 · Synced Apr 29, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00643227 live on ClinicalTrials.gov.