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clarithromycin

Phase 3

Pneumonia | Small molecule | Infectious Disease |Pfizer, Inc.|Last Updated: Mar 26, 2008

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLED
Total Trials1
Total Enrollment504

FDA Designations

No designations recorded

Clinical trial landscape

clarithromycin · 1 trial · 1 indication

Phase 3 1
NCT00643227A Multicenter, Randomized, Double-Blind, Double-Dummy Trial of Azithromycin SR Compared With Clarithromycin Extended Release for the Treatment of Pneumonia in Adult PatientsPneumonia
COMPLETED504 Analytics
PHASE3COMPLETED
A Multicenter, Randomized, Double-Blind, Double-Dummy Trial of Azithromycin SR Compared With Clarithromycin Extended Release for the Treatment of Pneumonia in Adult Patients
PneumoniaUnlock trial analytics

Study Endpoints

Primary Endpoints

sponsor assessment of clinical response (clinical cure rate) in the Clinical Per Protocol population
Test of Cure (TOC) visit (Day 14-21)

Secondary Endpoints

bacteriologic response (eradication rate) in the Bacteriological Per Protocol population
TOC visit
investigator assessment of clinical response in the Clinical Per Protocol population
TOC visit
sponsor assessment of clinical response by baseline pathogen
End of Treatment (EOT) visit (Day 8-11) and TOC visit
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
1EXPERIMENTAL -
2EXPERIMENTAL -

Interventions

NameTypeDescription
clarithromycin extended release (ER)DRUG7 days of clarithromycin extended release (ER), 1.0 g by mouth once daily
azithromycin SRDRUGSingle, 2.0 g oral dose of azithromycin sustained release (SR) by mouth once daily
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Eligibility Criteria

Age Range16 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites72

Inclusion Criteria: Outpatients with a diagnosis of pneumonia, as demonstrated by a productive cough and at least 2 of the following signs and symptoms: rales and/or evidence of pulmonary consolidation; dyspnea or tachypnea; elevated body temperature; or elevated total peripheral white blood cell c...

Countries:United StatesArgentinaCanadaEstoniaIndiaLithuaniaRussia
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Frequently asked questions about clarithromycin

What is clarithromycin used for?

Clarithromycin is a small molecule antibiotic used for the treatment of pneumonia in adult patients. It is being developed by Pfizer, Inc. for this infectious disease indication. The drug is currently in Phase 3 clinical development, though the specific trial supporting this stage has been completed.

What does clarithromycin target?

Clarithromycin is a macrolide antibiotic that works by inhibiting bacterial protein synthesis. It binds to the 50S ribosomal subunit of susceptible bacteria, blocking peptide bond formation and thereby stopping bacterial growth. This mechanism makes it effective against respiratory pathogens commonly responsible for community-acquired pneumonia.

Who makes clarithromycin?

Clarithromycin is developed by Pfizer, Inc., a pharmaceutical company traded on the New York Stock Exchange under the ticker symbol PFE. Pfizer is conducting clinical research on this drug for the treatment of pneumonia in adult patients.

What phase is clarithromycin in?

Clarithromycin is in Phase 3 clinical development for the treatment of pneumonia. The Phase 3 trial has been completed, and the drug remains investigational for this indication. It has not been approved by the FDA for pneumonia based on the available clinical data.

What clinical trials is clarithromycin in?

Clarithromycin has one completed Phase 3 clinical trial registered as NCT00643227. This multicenter, randomized, double-blind, double-dummy study compared azithromycin SR with clarithromycin extended release for the treatment of pneumonia in 504 adult patients across the United States, Argentina, Canada, Estonia, India, Lithuania, and Russia.

Is clarithromycin the same as azithromycin?

No, clarithromycin and azithromycin are different antibiotics, though both are macrolides. In the Phase 3 trial NCT00643227, clarithromycin extended release was compared against azithromycin SR as an active control. The study was designed to evaluate the efficacy and safety of these two treatments for pneumonia.