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CompletedNCT00312338Updated Nov 2, 2012Results posted

Topical Treatment of Bacterial Conjunctivitis and Its Effect on Microbial Flora

A Phase 4 interventional study of VIGAMOX in Bacterial Conjunctivitis, sponsored by Alcon Research. Completed at 1 site in United States. Open to participants aged 1 Year to 13 Years. Per ClinicalTrials.gov, last updated 2012-11-02.

Sponsored by Alcon Research (part of Alcon) · Phase 4 and Interventional

Phase
Phase 4
Study type
Interventional
Enrollment
137
Allocation
Non-randomized
Ages
1 Year to 13 Years
Sex
All
01

Study summary

Topical Treatment of Bacterial Conjunctivitis and its Effect on Microbial Flora

02

Conditions studied

  • Bacterial Conjunctivitis
03

In context

Conjunctivitis, Bacterial

40 studies on the registry are indexed under Conjunctivitis, Bacterial; 2 are open to participants now.

This study's enrollment of 137 is below the median of 261 across 36 interventional studies indexed under Conjunctivitis, Bacterial.

Browse Conjunctivitis, Bacterial studies →

Lead sponsor

Alcon Research is the lead sponsor of 624 studies on the registry; 9 are open to participants now.

Of its 112 completed or terminated interventional studies of FDA-regulated products, 102 (91%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
1 Year to 13 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients from 1 to 13 years of age that have diagnosis of bacterial conjunctivitis in either or both eyes (for \< 3 days duration) based on clinical observation; matched healthy controls

Exclusion criteria

Exclusion Criteria:

  • Cannot have had bacterial conjunctivitis symptoms as reported by parent for > 2 days
05

Study design

Phase
Phase 4
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
Single
Enrollment
137 participants (actual)

Study arms

  • Experimental
    Infected Patient treated with Vigamox

    Conjunctivitis-Infected Patient receiving Vigamox 0.5% in both eyes three times daily for 7 days.

    Drug: VIGAMOX

  • No intervention
    Healthy Subjects

    Healthy Subjects receiving no treatment

Interventions

  • 1 drop of VIGAMOX® ophthalmic solution 0.5% in both eyes TID for 7 days

06

What researchers measure

Primary outcomes

  1. Susceptability Changes in Streptococcus Pneumoniae Distal to the Site of Instillation

    Susceptibility change refers to a change in vulnerability of a specified bacterial strain to antibiotic treatment. Susceptibility was assessed by broth microdilution methods recommended by the Clinical and Laboratory Standards Institute (CLSI). 0% = zero isolates were resistant to antibiotic 100% = all isolates were resistant to antibiotic

    Time frame: Day 0 and Day 42

  2. Susceptability Changes in Staphylococcus Aureus Distal to the Site of Instillation

    Susceptibility change refers to a change in vulnerability of a specified bacterial strain to antibiotic treatment. Susceptibility was assessed by broth microdilution methods recommended by the Clinical and Laboratory Standards Institute (CLSI). 0% = zero isolates were resistant to antibiotic 100% = all isolates were resistant to antibiotic

    Time frame: Day 0, Day 42

  3. Susceptability Changes in Haemophilus Influenzae Distal to the Site of Instillation

    Susceptibility change refers to a change in vulnerability of a specified bacterial strain to antibiotic treatment. Susceptibility was assessed by broth microdilution methods recommended by the Clinical and Laboratory Standards Institute (CLSI). 0% = zero isolates were resistant to antibiotic 100% = all isolates were resistant to antibiotic

    Time frame: Day 0, Day 42

07

Results

Posted Feb 2, 2010
Limitations and caveats
Limited source documents.

Participant flow

Study recruitment started in June 2006 and ran until January 29 2008. The study sites included three sites (AZ, CA and IL)

Participant flow — Overall Study
MilestoneInfected PatientsHealthy Subjects
Started10557
Completed8354
Not completed223
Withdrew: Adverse event72
Withdrew: Lost to follow-up91
Withdrew: Withdrawal by subject40
Withdrew: Subsequent infection20

Outcome measures

PrimarySusceptability Changes in Streptococcus Pneumoniae Distal to the Site of Instillation

Susceptibility change refers to a change in vulnerability of a specified bacterial strain to antibiotic treatment. Susceptibility was assessed by broth microdilution methods recommended by the Clinical and Laboratory Standards Institute (CLSI). 0% = zero isolates were resistant to antibiotic 100% = all isolates were resistant to antibiotic

Time frame:
Day 0 and Day 42
Reported as:
Number · Percent of resistant isolates
Susceptability Changes in Streptococcus Pneumoniae Distal to the Site of Instillation
Percent of resistant isolatesInfected PatientsHealthy Subjects
Day 000
Day 4200
PrimarySusceptability Changes in Staphylococcus Aureus Distal to the Site of Instillation

Susceptibility change refers to a change in vulnerability of a specified bacterial strain to antibiotic treatment. Susceptibility was assessed by broth microdilution methods recommended by the Clinical and Laboratory Standards Institute (CLSI). 0% = zero isolates were resistant to antibiotic 100% = all isolates were resistant to antibiotic

Time frame:
Day 0, Day 42
Reported as:
Number · Percent of resistant isolates
Susceptability Changes in Staphylococcus Aureus Distal to the Site of Instillation
Percent of resistant isolatesInfected PatientsHealthy Subjects
Day 08.30
Day 4200
PrimarySusceptability Changes in Haemophilus Influenzae Distal to the Site of Instillation

Susceptibility change refers to a change in vulnerability of a specified bacterial strain to antibiotic treatment. Susceptibility was assessed by broth microdilution methods recommended by the Clinical and Laboratory Standards Institute (CLSI). 0% = zero isolates were resistant to antibiotic 100% = all isolates were resistant to antibiotic

Time frame:
Day 0, Day 42
Reported as:
Number · Percent of resistant isolates
Susceptability Changes in Haemophilus Influenzae Distal to the Site of Instillation
Percent of resistant isolatesInfected PatientsHealthy Subjects
Day 000
Day 4200

Adverse events

Collected over Day 0 to Day 42. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Infected Patients—0/105 (0%)6/105 (5.7%)
Healthy Subjects—0/57 (0%)0/57 (0%)
Most frequent other events
Most frequent other events
EventInfected PatientsHealthy Subjects
Upper respiratory tract infectionInfections and infestations6/1050/57

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Infected PatientsHealthy SubjectsTotal
<=18 years10557162
Between 18 and 65 years000
>=65 years000
Sex: Female, Male
Sex: Female, Male(Participants)Infected PatientsHealthy SubjectsTotal
Female482876
Male572986
08

Study locations

1 site
  • Multiple Locations
    Fort Worth, Texas 76134, United States
09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Jun 2006, a primary completion of Jun 2007 and a completion of Jun 2007. It does not say whether these dates are actual or estimated.

Results were first posted in Feb 2010, 2 years 8 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 4, 2006
First posted
Apr 10, 2006
Start
Jun 2006
Primary completionActual
Jun 2007
CompletionActual
Jun 2007
Results first posted
Feb 2, 2010
Last update
Nov 2, 2012
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 2, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00312338
Lead sponsor
Alcon Research
Collaborators
Tufts University
Responsible party
Sponsor
First posted
Apr 10, 2006
Start date
Jun 2006
Primary completion
Jun 2007
Completion
Jun 2007
Results posted
Feb 2, 2010
Last update
Nov 2, 2012

Study contacts

Steven J. Lichtenstein, M.D.
principal investigator · Investigator / Contact
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Feb 2010. You cannot join it, but the record below documents what was studied.

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