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This study will test the hypothesis that preservative-free tafluprost (MK-2452) is non-inferior to preservative-free timolol maleate with respect to the diurnal intraocular pressure (IOP) change from baseline after 4 weeks of therapy in participants with open-angle glaucoma or ocular hypertension.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Tafluprost | Experimental | One 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. |
|
| Timolol | Active Comparator | One drop of preservative-free timolol maleate (0.05%) per eye twice daily (morning and evening) for four weeks. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Preservative-Free Tafluprost or vehicle | Drug | Preservative-free tafluprost (0.0015%) ophthalmic solution; Preservative-free vehicle ophthalmic solution (contains no active drug) |
|
| Measure | Description | Time Frame |
|---|---|---|
| Mean Diurnal IOP Change From Baseline at Week 4 - Study Eye | 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. | Baseline and Week 4 |
| Number of Participants With an Adverse Event (AE) | 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. | Up to 14 days after Week 4 visit |
| Number of Participants Who Discontinued Study Drug Due to an AE | 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. | Up to Week 4 |
| Measure | Description | Time Frame |
|---|---|---|
| Number of Participants With ≥25% Reduction in IOP From Baseline to Week 4 - Study Eye | 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. 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." Percent reduction in IOP at Week 4 = ([baseline IOP value - Week 4 IOP value]/Baseline IOP value)*100. |
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Inclusion Criteria:
Exclusion Criteria:
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| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 27292765 | Result | Chabi A, Baranak C, Lupinacci R, Herring WJ. Preservative-free tafluprost in the treatment of open-angle glaucoma or ocular hypertension in India: a phase III clinical trial. Int J Clin Pract. 2016 Jul;70(7):577-86. doi: 10.1111/ijcp.12815. Epub 2016 Jun 13. |
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| ID | Type | URL | Comment |
|---|---|---|---|
| CSR Synopsis | View IPD |
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| ID | Title | Description |
|---|---|---|
| FG000 | Tafluprost | One 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. |
| FG001 | Timolol | One drop of preservative-free timolol maleate (0.05%) per eye twice daily (morning and evening) for four weeks. |
| Title | Milestones | Reasons Not Completed | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
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All Participants as Treated (APaT) population: All randomized participants who received at least one dose of study drug
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| ID | Title | Description |
|---|---|---|
| BG000 | Tafluprost | One 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. |
| BG001 | Timolol |
| Units | Counts |
|---|---|
| Participants |
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| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Continuous | Mean |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Mean Diurnal IOP Change From Baseline at Week 4 - Study Eye | 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. | Per Protocol population: Participants who received at least one dose of study drug, had at least one efficacy measurement available for an analysis endpoint and did not have any protocol violations that may substantially affect the results of the primary efficacy endpoint | Posted | Least Squares Mean | 95% Confidence Interval | mmHg | Baseline and Week 4 |
Up to 14 days after Week 4 visit
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | Tafluprost | One 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. |
| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| subdural hematoma | Injury, poisoning and procedural complications | MedDRA 14.0 | Systematic Assessment |
| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Conjunctivitis | Eye disorders | MedDRA 14.0 | Systematic Assessment |
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| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Senior Vice President, Global Clinical Development | Merck Sharp & Dohme Corp. | 1-800-672-6372 | ClinicalTrialsDisclosure@merck.com |
| ID | Term |
|---|---|
| D005901 | Glaucoma |
| D009798 | Ocular Hypertension |
| D005128 | Eye Diseases |
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|
| Preservative-Free Timolol maleate | Drug | Preservative-free timolol maleate (0.5%) ophthalmic solution |
|
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| Baseline and Week 4 |
| Withdrawal by Subject |
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| Adverse Event |
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One drop of preservative-free timolol maleate (0.05%) per eye twice daily (morning and evening) for four weeks.
| BG002 | Total | Total of all reporting groups |
| years |
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| Sex: Female, Male | Count of Participants | Participants |
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| Intraocular Pressure (IOP) - Study Eye | Baseline IOP was measured at 0800, 1000 and 1600 hours; 2 values obtained at each time. If the 2 values differed by ≤2 mmHg, average of 2 was recorded; if by >2 mmHg, a 3rd measurement was made and median of 3 was recorded. Baseline IOP was mean of the values recorded at the 3 time points. One "study eye" was identified, which 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." Data are for "Per Protocol" population: N=84, 84 and 168 for tafluprost, timolol and Total groups, respectively. | Mean | Standard Deviation | mmHg |
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| Secondary | Number of Participants With ≥25% Reduction in IOP From Baseline to Week 4 - Study Eye | 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. 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." Percent reduction in IOP at Week 4 = ([baseline IOP value - Week 4 IOP value]/Baseline IOP value)*100. | Per Protocol population: Participants who received at least one dose of study drug, had at least one efficacy measurement available for an analysis endpoint and did not have any protocol violations that may substantially affect the results of the primary efficacy endpoint | Posted | Number | participants | Baseline and Week 4 |
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| Primary | Number of Participants With an Adverse Event (AE) | 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. | APaT population | Posted | Number | participants | Up to 14 days after Week 4 visit |
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| Primary | Number of Participants Who Discontinued Study Drug Due to an AE | 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. | APaT population | Posted | Number | participants | Up to Week 4 |
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| 0 |
| 93 |
| 19 |
| 93 |
| EG001 | Timolol | One drop of preservative-free timolol maleate (0.05%) per eye twice daily (morning and evening) for four weeks. | 1 | 94 | 15 | 94 |
| Eye irritation | Eye disorders | MedDRA 14.0 | Systematic Assessment |
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| Eye pruritus | Eye disorders | MedDRA 14.0 | Systematic Assessment |
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| Ocular hyperaemia | Eye disorders | MedDRA 14.0 | Systematic Assessment |
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Investigator may publish results for his/her study site after publication of results of entire multicenter trial, or after public disclosure of the results online if a multicenter manuscript is not planned. Sponsor must be able to review all proposed results communications regarding study 60 days prior to submission for publication/presentation. Information identified by the Sponsor as confidential must be deleted prior to submission.