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Bacterial InfectionsPhase 4NCT00575380

Study of AzaSite Versus Vigamox Concentrations in the Conjunctiva and Aqueous Humor in Subjects Undergoing Routine Cataract Surgery

A Phase 4 study testing AzaSite Eye Drops and Vigamox Eye Drops in people with Bacterial Infections and Eye Infections, run by Merck Sharp & Dohme LLC at 13 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to evaluate the drug concentrations in the conjunctiva and aqueous humor of AzaSite™ compared to Vigamox® in subjects undergoing routine cataract surgery Read more about this study

Who is it for?
Ages 21 years and olderHealthy volunteers can take part
What is being tested?
AzaSite Eye Drops and Vigamox Eye Drops
Could I receive a placebo?
No, everyone receives an active treatment
How many people
116 participants
Where
13 sitesUnited States
Study dates
Dec 2007to Jun 2008
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 21 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Are scheduled to undergo routine cataract surgery by the investigator's preferred technique.
  • Have normal appearing, freely mobile, conjunctiva in the inferior temporal portion cul-de-sac site of the operative eye.

Who cannot join

  • Have concurrent infectious/noninfectious conjunctivitis, keratitis or uveitis in either eye.
  • Have a history of ocular pemphigoid.
  • Have ever had penetrating ocular surface surgery.
  • Have had intraocular surgery within the past 3 months.
  • Have ever had prior surgery or full penetrating trauma to the conjunctiva at the proposed surgical site.
  • Have a planned cataract surgery in the contraleteral eye within 2 weeks of the study related surgical procedure and sample collection.
Show all 15Show fewer
  • Have a combined procedure planned (trabeculectomy surgery planned in the same eye as cataract extraction surgery).
  • Have at the proposed conjunctiva biopsy site, signs of conjunctival shortening of the fornix, scarring or adherence to the underlying episclera.
  • Have according to the investigator's judgment, risk of intra- or post-operative complications related to their cataract surgery as a consequence of participation in the study.
  • 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.
  • Are unable or unwilling to withhold for a minimum of 3 weeks prior to initiation of study drug, the ocular or systemic use of either azithromycin or moxifloxacin, when it is the same medication as the subject's assigned study drug. This relates as well, to the use of either of these medications as a pre-surgical prophylaxis.
  • Are unable or unwilling to withhold for a minimum of 3 weeks prior to initiation of study drug, the use of erythromycin ointment or ofloxacin.
  • Have any ocular pathology with the exception of cataracts that in the judgment of the investigator could confound study assessments or limit compliance.
  • Have a serious systemic disease or uncontrolled medical condition or psychiatric condition that in the judgement of the investigator could confound study assessments or limit compliance.

Trial locations and contacts

13 sites in 1 country.

13 sites in 1 country

United States13 sites
  • Coastal Research Associates, LLC

    Atlanta, Georgia, 30339

  • Medical University of South Carolina

    Charleston, South Carolina, 29464

  • Corona Research Consultants

    El Paso, Texas, 79904

  • Eye Care Specialists

    Kingston, Pennsylvania, 18704

  • Eye Care Arkansas

    Little Rock, Arkansas, 72205

  • Kentuckiana Institute for Eye Research

    Louisville, Kentucky, 40207

  • Center for Excellence in Eye Care

    Miami, Florida, 33176

  • North Valley Eye Medical Group

    Mission Hills, California, 91345

  • Glaucoma Consultants and Center for Eye Research

    Mt. Pleasant, South Carolina, 29464

  • Eye Center of North Florida

    Panama City, Florida, 32405

  • Cornea Consultants of Arizone

    Phoenix, Arizona, 85032

  • Ophthalmic Consultants of Long Island

    Rockville Centre, New York, 11563

  • Ophthalmology Associates

    St Louis, Missouri, 63131

Other trials in United States

About this study

Official title: A Multi-Center, Open-Label, Randomized Study of the Pharmacokinetics of Azithromycin Versus Moxifloxacin in Conjunctiva and Aqueous Humor Following Single or Multiple Ocular Administration of AzaSite Ophthalmic Solution, 1% or Vigamox in Subjects Undergoing Routine Cataract Surgery

The purpose of this study is to evaluate the drug concentrations in the conjunctiva and aqueous humor of AzaSite™ compared to Vigamox® in subjects undergoing routine cataract surgery

Being tested
AzaSite Eye Drops, Vigamox Eye Drops
Medical subject headings
Bacterial Infections, Eye Infections

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • AzaSite Eye DropsDrug

    Also called AzaSite (azithromycin ophthalmic solution)

    One drop two times a day for two days and once a day for the next five days.

  • Vigamox Eye DropsDrug

    Also called Vigamox(moxifloxacin hydrochloride ophthalmic solution)

    One drop three times a day for seven days

Study groups in NCT00575380
Study groupRoleWhat they receive
AzaSite Eye DropsActive comparatorOne drop two times a day for two days and once a day for the next five days
Receives: Drug: AzaSite Eye Drops
Vigamox Eye DropsActive comparatorOne drop three times a day for seven days
Receives: Drug: Vigamox Eye Drops

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Conjunctiva Concentration Prior to Cataract Surgery at One of Ten Time Points Ranging From 1 to 14 Days (Per Protocol Pharmacokinetic Population)

    Nominal time is scheduled time relative to administration of the first eye drop

    Measured: Az(hr): 1,12,48,49,72,144,145,168,216,312; Vig(hr): 1,8,48,49,56,144,145,168,216,312

Secondary outcomes (1)
  1. Aqueous Humor Concentration Prior to Cataract Surgery at One of Ten Time Points Ranging From 1 to 14 Days (Per Protocol Pharmacokinetic Population)

    Measured: Az(hr): 1,12,48,49,72,144,145,168,216,312; Vig(hr): 1,8,48,49,56,144,145,168,216,312

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Dec 2007 (estimated)
  2. Study startDec 2007
  3. Primary completionJun 2008

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
116 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00575380
Sponsor's protocol ID
041-103
Other IDs
P08655
Status last verified
Sep 2011
First submitted
12 Dec 2007
Last updated
22 Sep 2011
Data monitoring committee
No

Publications

  • Stewart WC, Crean CS, Zink RC, Brubaker K, Haque RM, Hwang DG. Pharmacokinetics of azithromycin and moxifloxacin in human conjunctiva and aqueous humor during and after the approved dosing regimens. Am J Ophthalmol. 2010 Nov;150(5):744-751.e2. doi: 10.1016/j.ajo.2010.05.039. Epub 2010 Sep 1.

    PubMed 20813346

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing AzaSite Eye Drops and Vigamox Eye Drops in people with Bacterial Infections and Eye Infections, run by Merck Sharp & Dohme LLC at 13 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 15 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 22 Sep 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 13 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 16 Sep 2009). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Conjunctiva Concentration Prior to Cataract Surgery at One of Ten Time Points Ranging From 1 to 14 Days (Per Protocol Pharmacokinetic Population) (time frame: Az(hr): 1,12,48,49,72,144,145,168,216,312; Vig(hr): 1,8,48,49,56,144,145,168,216,312). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00575380, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Sep 2011.

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