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Study of AzaSite (Azithromycin) Versus Vigamox in the Conjunctiva of Healthy Volunteers

A Single-Center, Open-Label, Randomized Study of the Pharmacokinetics of AzaSite Ophthalmic Solution Versus Vigamox in the Conjunctiva of Healthy Volunteers Following a Single Ocular Administration

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00564447
Enrollment
48
Registered
2007-11-28
Start date
2007-12-31
Completion date
Unknown
Last updated
2011-09-22

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

Conditions

Bacterial Infections, Eye Infections

Brief summary

The purpose of this study is to evaluate the drug concentrations of AzaSite™ compared to Vigamox at various time points in conjunctiva tissue of healthy volunteers

Interventions

DRUGAzithromycin

azithromycin topical solution 1% given as a single drop in a single eye

DRUGMoxifloxacin

Moxifloxacin topical solution given as a single drop in a single eye

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Have best corrected visual acuity of 0.60 logMAR or better in each eye as measured using Early Treatment of Diabetic Retinopathy Study chart

Exclusion criteria

* Have a known allergy and/or sensitivity to the test article(s) or its components or any therapies associated with the trial * Have active signs or symptoms of any clinically significant ocular disorder (other than refractive disorders) * Have a known bleeding disorder or history of bleeding complications after surgical or dental procedures * Take aspirin, or take any other blood thinners or anti-coagulants (e.g. warfarin) including prescription, over the counter, or homeopathic therapies * Have undergone any ocular surgical intervention within 3 months prior to Visit 1 or anticipate having ocular surgery during the study

Design outcomes

Primary

MeasureTime frame
Assessment of Pharmacokinetic ParametersUp to 24 hours

Participant flow

Recruitment details

December 2007

Pre-assignment details

Normal volunteers

Participants by arm

ArmCount
Azithromycin Ophthalmic Solution, 1% -30 Minutes Post Dose6
Azithromycin Ophthalmic Solution, 1% -2 Hours Post Dose6
Azithromycin Ophthalmic Solution, 1% -12 Hours Post Dose6
Azithromycin Ophthalmic Solution, 1% -24 Hours Post Dose6
Moxifloxacin 0.5% Ophthalmic Solution-30 Minutes Post Dose6
Moxifloxacin 0.5% Ophthalmic Solution-2 Hours Post Dose6
Moxifloxacin 0.5% Ophthalmic Solution-12 Hours Post Dose6
Moxifloxacin 0.5% Ophthalmic Solution-24 Hours Post Dose6
Total48

Baseline characteristics

CharacteristicAzithromycin Ophthalmic Solution, 1% -30 Minutes Post DoseAzithromycin Ophthalmic Solution, 1% -2 Hours Post DoseAzithromycin Ophthalmic Solution, 1% -12 Hours Post DoseAzithromycin Ophthalmic Solution, 1% -24 Hours Post DoseMoxifloxacin 0.5% Ophthalmic Solution-30 Minutes Post DoseMoxifloxacin 0.5% Ophthalmic Solution-2 Hours Post DoseMoxifloxacin 0.5% Ophthalmic Solution-12 Hours Post DoseMoxifloxacin 0.5% Ophthalmic Solution-24 Hours Post DoseTotal
Age Continuous44.5 years
STANDARD_DEVIATION 11.1
46.8 years
STANDARD_DEVIATION 13.1
38.2 years
STANDARD_DEVIATION 13.2
33.7 years
STANDARD_DEVIATION 16.8
43.0 years
STANDARD_DEVIATION 13.7
43.5 years
STANDARD_DEVIATION 13.2
33.3 years
STANDARD_DEVIATION 8.2
36.7 years
STANDARD_DEVIATION 11.7
40.0 years
STANDARD_DEVIATION 12.8
Region of Enrollment
United States
6 participants6 participants6 participants6 participants6 participants6 participants6 participants6 participants48 participants
Sex: Female, Male
Female
5 Participants2 Participants2 Participants3 Participants1 Participants5 Participants2 Participants3 Participants23 Participants
Sex: Female, Male
Male
1 Participants4 Participants4 Participants3 Participants5 Participants1 Participants4 Participants3 Participants25 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
1 / 61 / 61 / 60 / 63 / 62 / 60 / 61 / 6
serious
Total, serious adverse events
0 / 60 / 60 / 60 / 60 / 60 / 60 / 60 / 6

Outcome results

Primary

Assessment of Pharmacokinetic Parameters

Time frame: Up to 24 hours

Primary

Assessment of Pharmacokinetic Parameters

Conjunctiva Concentration of Azithromycin and Moxifloxacin

Time frame: Over 24 hours

ArmMeasureValue (MEAN)Dispersion
Azithromycin Ophthalmic Solution, 1% -30 Minutes Post DoseAssessment of Pharmacokinetic Parameters130.8 μg/gStandard Deviation 89.1
Azithromycin Ophthalmic Solution, 1% -2 Hours Post DoseAssessment of Pharmacokinetic Parameters51.6 μg/gStandard Deviation 26
Azithromycin Ophthalmic Solution, 1% -12 Hours Post DoseAssessment of Pharmacokinetic Parameters67.1 μg/gStandard Deviation 51.8
Azithromycin Ophthalmic Solution, 1% -24 Hours Post DoseAssessment of Pharmacokinetic Parameters31.9 μg/gStandard Deviation 20.4
Moxifloxacin 0.5% Ophthalmic Solution-30 Minutes Post DoseAssessment of Pharmacokinetic Parameters1.9 μg/gStandard Deviation 2
Moxifloxacin 0.5% Ophthalmic Solution-2 Hours Post DoseAssessment of Pharmacokinetic Parameters3.8 μg/gStandard Deviation 9
Moxifloxacin 0.5% Ophthalmic Solution-12 Hours Post DoseAssessment of Pharmacokinetic Parameters0.0 μg/gStandard Deviation 0
Moxifloxacin 0.5% Ophthalmic Solution-24 Hours Post DoseAssessment of Pharmacokinetic Parameters0.0 μg/gStandard Deviation 0

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