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
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The study was performed to confirm that a single, 2.0 g oral dose of azithromycin sustained release (SR) at least as effective as 7 days of clarithromycin extended release (ER), 1.0 g by mouth once daily, when used to treat adults with mild to moderate community acquired pneumonia (CAP), and that both treatments were safe.
Study identification
- NCT ID
- NCT00643227
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 504 participants
Conditions and interventions
Conditions
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
- Jan 2003 (Type not available)
- Primary completion
- Not listed
- Completion
- Mar 2004 (Actual)
- Last update posted
- Mar 26, 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 26, 2008 · Synced Oct 20, 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 public registry record, listed eligibility criteria, and available contact information for NCT00643227 live on ClinicalTrials.gov.