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Preservative-Free Tafluprost or vehicle

Phase 3

Glaucoma | Small molecule | Cardiovascular |Merck & Company, Inc.|Last Updated: Sep 20, 2018

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindACTIVE_CONTROLLEDBiomarker
Total Trials1
Total Enrollment190
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01254604Preservative-Free Tafluprost (MK-2452) for the Treatment of Open-Angle Glaucoma or Ocular Hypertension (MK-2452-002)PHASE3 COMPLETED 190Dec 1, 2011May 9, 2013Sep 20, 2018 -
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Study Endpoints
Primary Endpoints
Mean Diurnal IOP Change From Baseline at Week 4 - Study Eye
Baseline and Week 4

IOP was measured at baseline, Week 2 and Week 4 using a Goldmann applanation tonometer. At each of these visits, IOP measurement was performed at 0800, 1000 and 1600 hours. At each IOP assessment time point during a visit, 2 consecutive IOP measurements were made. If these 2 measurements differed by ≤2 mmHg, then the average of the 2 IOP values was recorded. If the 2 measurements differed by \>2 mmHg, then a third measurement was obtained and the median of these 3 measurements was recorded. The IOP value for a visit (e.g., Week 4) was the mean of the values recorded at the 3 time points during the visit. For each participant, one "study eye" was identified for data summarization and analysis for this primary efficacy outcome measure. The "study eye" was the eye with the higher (i.e., "worse") IOP at baseline, or if both eyes had the same baseline IOP value, the right eye was designated the "study eye." Change from baseline in IOP at Week 4 = Week 4 IOP value - baseline IOP value.

Number of Participants With an Adverse Event (AE)
Up to 14 days after Week 4 visit

An AE is any unfavorable and unintended change in the structure, function or chemistry of the body temporally associated with study drug administration, whether or not considered related to the study drug. Participants with one or more AEs during the study are counted once in this summary.

Number of Participants Who Discontinued Study Drug Due to an AE
Up to Week 4

An AE is any unfavorable and unintended change in the structure, function or chemistry of the body temporally associated with study drug administration, whether or not considered related to the study drug. Participants who discontinued study drug treatment due to an AE are counted once in this summary.

Secondary Endpoints
Number of Participants With ≥25% Reduction in IOP From Baseline to Week 4 - Study Eye
Baseline and Week 4
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
TafluprostEXPERIMENTALOne drop of preservative-free vehicle (contains no active drug) per eye in the morning, and one drop of preservative-free tafluprost (0.0015%) per eye in the evening for four weeks. Morning dose with vehicle only allows blinding to match twice daily dosing of comparator arm.
TimololACTIVE_COMPARATOROne drop of preservative-free timolol maleate (0.05%) per eye twice daily (morning and evening) for four weeks.
Interventions
NameTypeDescription
Preservative-Free Tafluprost or vehicleDRUGPreservative-free tafluprost (0.0015%) ophthalmic solution; Preservative-free vehicle ophthalmic solution (contains no active drug)
Preservative-Free Timolol maleateDRUGPreservative-free timolol maleate (0.5%) ophthalmic solution
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Eligibility Criteria
Age Range18 Years — 80 Years
SexALL
Healthy VolunteersNo

Inclusion Criteria: * Participant has been diagnosed with primary open-angle glaucoma, pigmentary glaucoma, capsular glaucoma/pseudoexfoliation, or ocular hypertension * Has been using ocular hypotensive medication on a stable treatment regimen for at least 30 days prior to screening, or is treatme...

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