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Evaluation of Clinical and Microbial Efficacy and Safety of AzaSite Compared to Vehicle for Bacterial Conjunctivitis (C-01-401-003)

A Study to Evaluate the Clinical and Microbial Efficacy and Safety of 1.0 % AzaSite Compared to Vehicle in the Treatment of Bacterial Conjunctivitis

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00105534
Enrollment
685
Registered
2005-03-16
Start date
2004-07-31
Completion date
2006-01-31
Last updated
2013-11-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bacterial Conjunctivitis

Keywords

Bacterial Conjunctivitis, Pink Eye, Conjunctivitis, Eye Infection, Eye Discharge

Brief summary

The purpose of this study is to evaluate the clinical and microbial efficacy and safety of AzaSite compared to vehicle for bacterial conjunctivitis. Adults and children one year of age and older with bacterial conjunctivitis in at least one eye may be eligible. Subjects will be randomly assigned to receive either 1.0 % AzaSite or Vehicle. Three visits will be required for this study.

Interventions

1.0% AzaSite contains 1.0% azithromycin, sodium hydroxide, mannitol, poloxamer 407, citric acid anhydrous, sodium citrate, DuraSite® (polycarbophil, sodium chloride, EDTA disodium and water for injection) and benzalkonium chloride 0.003%. AzaSite was prescribed as a single topical drop to the infected eye(s) for 5 days, twice on the first two days (once in the morning and at bedtime) and once a day in the morning (between 7-10 AM) for the following three days.

OTHERVehicle

Vehicle contains sodium hydroxide, mannitol, poloxamer 407, citric acid anhydrous, sodium citrate, DuraSite® (polycarbophil, sodium chloride, EDTA disodium and water for injection) and benzalkonium chloride 0.003%. Vehicle was prescribed as a single topical drop to the infected eye(s) for 5 days, twice on the first two days (once in the morning and at bedtime) and once a day in the morning (between 7-10 AM) for the following three days.

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
12 Months to No maximum
Healthy volunteers
No

Inclusion criteria

* Male or female subject, of any race, who is at least 1 year of age. * Subjects must have a clinical diagnosis of acute bacterial conjunctivitis and exhibit mucopurulent or purulent conjunctival discharge (crusty or sticky eyelids, globular and yellow discharge) and redness in at least one eye. * The symptoms of bacterial conjunctivitis must be present for 3 days (approximately 72 hours) or less. * Must be willing to discontinue contact lens wear for the duration of the study.

Exclusion criteria

* Any uncontrolled, systemic, debilitating disease. * Use of topical ophthalmic solutions including tear substitutes within 2 hours before and during the study. * Use of any topical ophthalmic anti-inflammatory agents within 48 hours before and during the study. * Any active upper respiratory tract infection. * Pregnant or nursing females. * Use of any antibiotic (topical or systemic) within 72 hours of enrollment

Design outcomes

Primary

MeasureTime frameDescription
Participants Who Achieved Clinical ResolutionVisit 3 (Days 6-7)Clinical Resolution is defined as absence of all three clinical signs: ocular discharge, bulbar conjunctival injection, and palpebral conjunctival injection.

Secondary

MeasureTime frameDescription
Participants Who Achieved Bacteriological EradicationVisit 3 (Day 6-7)Bacterial eradication is defined as the eradication of the causative pathogens as indicated by the absence of growth (0 colony forming units/mL) of the original infecting organism(s).

Countries

United States

Participant flow

Participants by arm

ArmCount
AzaSite
Per protocol population defined as all randomized participants who had administered at least one drop of study drug, who had eye cultures indicating pathogenic bacteria levels as well as the clinical signs of conjunctivitis at Visit 1 and had at least one post first dose clinical assessment.
130
Vehicle
Per protocol population defined as all randomized participants who had administered at least one drop of study drug, who had eye cultures indicating pathogenic bacteria levels as well as the clinical signs of conjunctivitis at Visit 1 and had at least one post first dose clinical assessment.
149
Total279

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event25
Overall StudyLack of Efficacy715
Overall StudyLost to Follow-up51
Overall StudyOther Reason02
Overall StudyProtocol Violation14
Overall StudyTreatment unmasked10
Overall StudyWithdrawal by Subject66

Baseline characteristics

CharacteristicAzaSiteVehicleTotal
Age Continuous25.6 years
STANDARD_DEVIATION 24.49
30.8 years
STANDARD_DEVIATION 28.07
28.4 years
STANDARD_DEVIATION 26.54
Sex: Female, Male
Female
82 Participants78 Participants160 Participants
Sex: Female, Male
Male
48 Participants71 Participants119 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 3330 / 350
serious
Total, serious adverse events
0 / 3332 / 350

Outcome results

Primary

Participants Who Achieved Clinical Resolution

Clinical Resolution is defined as absence of all three clinical signs: ocular discharge, bulbar conjunctival injection, and palpebral conjunctival injection.

Time frame: Visit 3 (Days 6-7)

Population: Per protocol population (defined as all randomized participants who had administered at least one drop of study drug, who had eye cultures indicating pathogenic bacteria levels as well as the clinical signs of conjunctivitis at Visit 1 and had at least one post first dose clinical assessment) with last observation carried forward.

ArmMeasureValue (NUMBER)
AzaSiteParticipants Who Achieved Clinical Resolution82 Participants
VehicleParticipants Who Achieved Clinical Resolution74 Participants
Secondary

Participants Who Achieved Bacteriological Eradication

Bacterial eradication is defined as the eradication of the causative pathogens as indicated by the absence of growth (0 colony forming units/mL) of the original infecting organism(s).

Time frame: Visit 3 (Day 6-7)

Population: Per protocol population (defined as all randomized participants who had administered at least one drop of study drug, who had eye cultures indicating pathogenic bacteria levels as well as the clinical signs of conjunctivitis at Visit 1 and had at least one post first dose clinical assessment) with last observation carried forward.

ArmMeasureValue (NUMBER)
AzaSiteParticipants Who Achieved Bacteriological Eradication115 Participants
VehicleParticipants Who Achieved Bacteriological Eradication99 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026