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Efficacy of Besifloxacin Ophthalmic Suspension in the Treatment of Bacterial Conjunctivitis

A Study to Evaluate the Clinical and Microbial Efficacy of Besifloxacin Ophthalmic Suspension, 0.6% BID Compared to Vehicle in the Treatment of Bacterial Conjunctivitis.

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00972777
Enrollment
474
Registered
2009-09-09
Start date
2009-10-31
Completion date
2011-02-28
Last updated
2012-03-29

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

Conditions

Bacterial Conjunctivitis

Brief summary

This study is being conducted to evaluate the clinical and microbial efficacy of besifloxacin ophthalmic suspension compared with vehicle in the treatment of bacterial conjunctivitis. This study was conducted as a phase IIb study and continued with further enrollment as a phase III study.

Interventions

Besifloxacin 0.6% administered into the study eye two times a day for three days.

Vehicle administered to the study eye two times a day for three days.

Sponsors

Bausch & Lomb Incorporated
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
1 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Subjects who are at least one year of age. * Subjects who have a clinical diagnosis of acute bacterial conjunctivitis. * Subjects who are willing to discontinue contact lens wear for the duration of the study.

Exclusion criteria

* Subjects who have any uncontrolled systemic disease or debilitating disease. * Subjects with known sensitivity or contraindications to besifloxacin, fluoroquinolones or any ingredients in study drugs. * Subjects who are expected to require treatment with any disallowed medications.

Design outcomes

Primary

MeasureTime frameDescription
Clinical ResolutionVisit 2The absence of both conjunctival discharge and bulbar conjunctival injection.
Microbial EradicationVisit 2The absence of ocular bacteria that were present at or above pathogenic threshold levels at baseline.

Secondary

MeasureTime frameDescription
Clinical ResolutionVisit 3The absence of both conjunctival discharge and bulbar conjunctival injection.
Microbial EradicationVisit 3The absence of ocular bacteria that were present at or above pathogenic threshold levels at baseline.

Countries

United States

Participant flow

Recruitment details

This was a two phase (IIB/III) integrated study. Phase IIb was conducted at 31 sites and Phase III at 28 sites in the United States. The first participant was enrolled in phase IIb on 10/30/2009, and last participant exited the study on 04/09/2010. Phase III enrolled its first participant on 04/05/2010 and last participant exited on 10/13/2010.

Pre-assignment details

A total of 474 participants were enrolled in the integrated study in the intent to treat(ITT) population. 276 participants had culture confirmed bacterial conjunctivitis and were assigned to the modified intent to treat(mITT) population. 464 participants were assigned to the safety population. 446 participants completed the study.

Participants by arm

ArmCount
Besifloxacin
0.6% ophthalmic suspension
231
Vehicle
Vehicle of besifloxacin ophthalmic suspension
243
Total474

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event32
Overall StudyLost to Follow-up04
Overall StudyMissed visit10
Overall StudyPhysician Decision40
Overall StudyProtocol Violation02
Overall StudyScreening Failure21
Overall StudyWithdrawal by Subject45

Baseline characteristics

CharacteristicBesifloxacinTotalVehicle
Age, Customized
12 - 17 years
19 participants39 participants20 participants
Age, Customized
18 - 29 years
32 participants72 participants40 participants
Age, Customized
2 - 11 years
66 participants143 participants77 participants
Age, Customized
<2 years
14 participants27 participants13 participants
Age, Customized
30 - 39 years
21 participants50 participants29 participants
Age, Customized
40 - 49 years
23 participants37 participants14 participants
Age, Customized
50 - 59 years
20 participants39 participants19 participants
Age, Customized
>=60 years
35 participants66 participants31 participants
Age, Customized
Missing
1 participants1 participants0 participants
Race/Ethnicity, Customized
American Indian or Alaska Native
7 participants12 participants5 participants
Race/Ethnicity, Customized
Asian
7 participants14 participants7 participants
Race/Ethnicity, Customized
Black or African American
45 participants103 participants58 participants
Race/Ethnicity, Customized
Missing
1 participants1 participants0 participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 participants2 participants2 participants
Race/Ethnicity, Customized
Other
4 participants9 participants5 participants
Race/Ethnicity, Customized
White
167 participants333 participants166 participants
Sex: Female, Male
Female
142 Participants275 Participants133 Participants
Sex: Female, Male
Male
89 Participants199 Participants110 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 2280 / 236
serious
Total, serious adverse events
0 / 2280 / 236

Outcome results

Primary

Clinical Resolution

The absence of both conjunctival discharge and bulbar conjunctival injection.

Time frame: Visit 2

Population: Clinical Resolution at Visit 2, (LOCF), mITT Population.

ArmMeasureValue (NUMBER)
BesifloxacinClinical Resolution89 eyes
VehicleClinical Resolution62 eyes
Primary

Microbial Eradication

The absence of ocular bacteria that were present at or above pathogenic threshold levels at baseline.

Time frame: Visit 2

Population: Microbial Eradication at Visit 2, (LOCF), mITT Population.

ArmMeasureValue (NUMBER)
BesifloxacinMicrobial Eradication115 eyes
VehicleMicrobial Eradication77 eyes
Secondary

Clinical Resolution

The absence of both conjunctival discharge and bulbar conjunctival injection.

Time frame: Visit 3

Population: Clinical Resolution at Visit 3, (LOCF) mITT Population.

ArmMeasureValue (NUMBER)
BesifloxacinClinical Resolution103 eyes
VehicleClinical Resolution94 eyes
Secondary

Microbial Eradication

The absence of ocular bacteria that were present at or above pathogenic threshold levels at baseline.

Time frame: Visit 3

Population: Microbial Eradication at Visit 3, (LOCF), mITT Population.

ArmMeasureValue (NUMBER)
BesifloxacinMicrobial Eradication115 eyes
VehicleMicrobial Eradication91 eyes

Source: ClinicalTrials.gov · Data processed: Mar 30, 2026