NCT00449956

Brief Summary

The clinical study compares safety and efficacy of MK0507A (dorzolamide 1.0% / timolol 0.5%) with 1) timolol 0.5% and with 2) concomitant therapy with dorzolamide 1.0% / timolol 0.5% in patients with glaucoma and ocular hypertension.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
474

participants targeted

Target at P50-P75 for phase_3

Timeline
Completed

Started Mar 2007

Shorter than P25 for phase_3

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 12, 2007

Completed
7 days until next milestone

First Submitted

Initial submission to the registry

March 19, 2007

Completed
2 days until next milestone

First Posted

Study publicly available on registry

March 21, 2007

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 16, 2008

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 16, 2008

Completed
1.3 years until next milestone

Results Posted

Study results publicly available

May 29, 2009

Completed
Last Updated

June 20, 2017

Status Verified

May 1, 2017

Enrollment Period

11 months

First QC Date

March 19, 2007

Results QC Date

January 23, 2009

Last Update Submit

May 25, 2017

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in Intraocular Pressure (IOP) From Baseline at 8 Weeks

    Change from baseline to 8 weeks in Intraocular Pressure (IOP) assessed 2 hours after ocular instillation (at Hour 2)

    8 weeks

Secondary Outcomes (2)

  • Percent Change From Baseline in Intraocular Pressure (IOP) at 8 Weeks

    8 Weeks

  • Percent Change From Baseline in Outflow Pressure Reduction Rate at 8 Weeks

    8 weeks

Study Arms (3)

1

EXPERIMENTAL

combination of dorzolamide hydrochloride and timolol maleate

Drug: dorzolamide hydrochloride (+) timolol maleate

2

ACTIVE COMPARATOR

Concomitant use of dorzolamide hydrochloride and timolol maleate

Drug: Comparator: timolol maleateDrug: Comparator: dorzolamide hydrochloride

3

ACTIVE COMPARATOR

timolol maleate

Drug: Comparator: timolol maleate

Interventions

Dorzolamide hydrochloride 1% + timolol 0.5%, 8-week

1

timolol maleate 0.5%, 8-week

23

dorzolamide hydrochloride 1%, 8-week

2

Eligibility Criteria

Age20 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients with glaucoma and ocular hypertension

You may not qualify if:

  • History of ocular surgery within 3 months
  • Administration contradiction to timolol and dorzolamide

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Kitazawa Y, Araie M; Research Group on MK-0507A. [Double-masked, phase III comparative study of the combination ophthalmic solution of the 1% dorzolamide hydrochloride/0.5% timolol maleate (MK-0507A) in patients with glaucoma and ocular hypertension]. Nippon Ganka Gakkai Zasshi. 2011 Jun;115(6):495-507. Japanese.

MeSH Terms

Conditions

Glaucoma

Interventions

dorzolamide-timolol combination

Condition Hierarchy (Ancestors)

Ocular HypertensionEye Diseases

Results Point of Contact

Title
Senior Vice President, Global Clinical Development
Organization
Merck Sharp & Dohme Corp

Study Officials

  • Medical Monitor

    Merck Sharp & Dohme LLC

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 19, 2007

First Posted

March 21, 2007

Study Start

March 12, 2007

Primary Completion

February 16, 2008

Study Completion

February 16, 2008

Last Updated

June 20, 2017

Results First Posted

May 29, 2009

Record last verified: 2017-05

Data Sharing

IPD Sharing
Will share

http://www.merck.com/clinical-trials/pdf/Merck%20Procedure%20on%20Clinical%20Trial%20Data%20Access%20Final\_Updated%20July\_9\_2014.pdf http://engagezone.msd.com/ds\_documentation.php