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Study of AzaSite Versus Vigamox in the Tears of Healthy Volunteers

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

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00575367
Enrollment
37
Registered
2007-12-18
Start date
2008-03-31
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 in tears of healthy volunteers

Interventions

DRUGAzaSite (azithromycin ophthalmic solution)

One drop ophthalmic solution at Visit 2

DRUGVigamox (moxifloxacin hydrochloride ophthalmic solution)

One drop ophthalmic solution at Visit 2

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 visual acuity, using corrective lenses (no contact lenses) if necessary, in both eyes of at least +0.7 as assessed by Early Treatment of Diabetic Retinopathy Study. * Have normal lid anatomy.

Exclusion criteria

* Have an abnormal biomicroscopy or ophthalmoscopy exam. * Have a diagnosis of dry eye disease or have experienced any of the dry eye symptoms (photophobia, foreign body sensation, itching, burning, pain, dry or grittiness) in the past thirty days. * Have used artificial tears in the past thirty days. * Have a diagnosis of on-going ocular infection or lid margin inflammation. * Have ever had penetrating ocular surface or intraocular surgery. * Have a known hypersensitivity to azithromycin, or any macrolide antibiotic or to any of the ingredients in AzaSite. * Have had a known hypersensitivity to Vigamox or any fluoroquinolone antibiotics or to any of the ingredients in Vigamox. * Have had corneal or lid abnormalities. * Have glaucoma, or Intra Ocular Pressure of 22 mm Hg or greater in one or both eyes. * Have any ocular pathology with the exception of cataracts. * Have a serious systemic disease or uncontrolled medical condition. * Have experienced symptoms of viral or allergic conjunctivitis in the past 30 days. * Have a history of liver or kidney disease resulting in persisting dysfunction.

Design outcomes

Primary

MeasureTime frame
Concentration of AzaSite and Vigamox in the Tear Fluid Across Six Time Points Ranging From 15 Minutes to 24 Hours Following Administration.15 minutes, 1 hour, 2 hours, 4 hours, 8 hours, and 24 hours

Countries

United States

Participant flow

Participants by arm

ArmCount
AzaSite18
Vigamox17
Total35

Baseline characteristics

CharacteristicAzaSiteVigamoxTotal
Age Continuous33.9 years
STANDARD_DEVIATION 12.59
38.1 years
STANDARD_DEVIATION 13.29
36.0 years
STANDARD_DEVIATION 12.92
Sex: Female, Male
Female
13 Participants7 Participants20 Participants
Sex: Female, Male
Male
5 Participants10 Participants15 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 190 / 18
serious
Total, serious adverse events
0 / 190 / 18

Outcome results

Primary

Concentration of AzaSite and Vigamox in the Tear Fluid Across Six Time Points Ranging From 15 Minutes to 24 Hours Following Administration.

Time frame: 15 minutes, 1 hour, 2 hours, 4 hours, 8 hours, and 24 hours

Population: Per Protocol Population

ArmMeasureGroupValue (MEAN)Dispersion
AzaSiteConcentration of AzaSite and Vigamox in the Tear Fluid Across Six Time Points Ranging From 15 Minutes to 24 Hours Following Administration.15 Minutes16.485 µg/mLStandard Deviation 22.9971
AzaSiteConcentration of AzaSite and Vigamox in the Tear Fluid Across Six Time Points Ranging From 15 Minutes to 24 Hours Following Administration.1 Hour4.007 µg/mLStandard Deviation 4.368
AzaSiteConcentration of AzaSite and Vigamox in the Tear Fluid Across Six Time Points Ranging From 15 Minutes to 24 Hours Following Administration.2 Hours1.966 µg/mLStandard Deviation 3.6632
AzaSiteConcentration of AzaSite and Vigamox in the Tear Fluid Across Six Time Points Ranging From 15 Minutes to 24 Hours Following Administration.8 Hours2.590 µg/mLStandard Deviation 4.8111
AzaSiteConcentration of AzaSite and Vigamox in the Tear Fluid Across Six Time Points Ranging From 15 Minutes to 24 Hours Following Administration.24 Hours0.195 µg/mLStandard Deviation 0.2558
AzaSiteConcentration of AzaSite and Vigamox in the Tear Fluid Across Six Time Points Ranging From 15 Minutes to 24 Hours Following Administration.4 Hours1.558 µg/mLStandard Deviation 2.6151
VigamoxConcentration of AzaSite and Vigamox in the Tear Fluid Across Six Time Points Ranging From 15 Minutes to 24 Hours Following Administration.4 Hours0.603 µg/mLStandard Deviation 1.0074
VigamoxConcentration of AzaSite and Vigamox in the Tear Fluid Across Six Time Points Ranging From 15 Minutes to 24 Hours Following Administration.15 Minutes8.199 µg/mLStandard Deviation 15.9873
VigamoxConcentration of AzaSite and Vigamox in the Tear Fluid Across Six Time Points Ranging From 15 Minutes to 24 Hours Following Administration.24 Hours0.021 µg/mLStandard Deviation 0.0449
VigamoxConcentration of AzaSite and Vigamox in the Tear Fluid Across Six Time Points Ranging From 15 Minutes to 24 Hours Following Administration.1 Hour2.221 µg/mLStandard Deviation 4.1506
VigamoxConcentration of AzaSite and Vigamox in the Tear Fluid Across Six Time Points Ranging From 15 Minutes to 24 Hours Following Administration.8 Hours1.364 µg/mLStandard Deviation 2.7629
VigamoxConcentration of AzaSite and Vigamox in the Tear Fluid Across Six Time Points Ranging From 15 Minutes to 24 Hours Following Administration.2 Hours2.985 µg/mLStandard Deviation 5.635

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