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CompletedNCT00486252Updated Mar 1, 2021Results posted

Non Interventional Study in Patients With Open Angle Glaucoma and/or Ocular Hypertension Treated With XALATAN®

An observational study in Glaucoma,Open-Angle and Ocular Hypertension, sponsored by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.. Completed. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-03-01.

Sponsored by Pfizer's Upjohn has merged with Mylan to form Viatris Inc. · Observational

Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
996
Ages
18 Years and older
Sex
All
01

Study summary

The primary objective is to evaluate the Intraocular pressure reducing effect of Xalatan over 3 months. The secondary objective is to study the other efficacy parameters during treatment for 3 months

02

Conditions studied

  • Glaucoma,Open-Angle
  • Ocular Hypertension
03

In context

Glaucoma

1,818 studies on the registry are indexed under Glaucoma; 231 are open to participants now.

This study's enrollment of 996 is above the median of 103 across 454 observational studies indexed under Glaucoma.

Browse Glaucoma studies →

Lead sponsor

Pfizer's Upjohn has merged with Mylan to form Viatris Inc. is the lead sponsor of 431 studies on the registry; none are open to participants now.

Of its 9 completed or terminated interventional studies of FDA-regulated products, 8 (89%) have results posted.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

outpatients with unilateral or bilateral open angle glaucoma or ocular hypertension

Inclusion criteria

  • Unilateral or bilateral open angle glaucoma or ocular hypertension (IOP (Intraocular Pressure) ≥ 21 mmHg at diagnosis).
  • Naive patients (no prior anti-glaucoma pharmacological or surgical treatment) and patients with beta-blockers therapy failure
  • Visual acuity (best corrected) equal to or better than 6/6

Exclusion criteria

Exclusion Criteria:

  • closed/barely open anterior chamber angle or history of acute angle closure glaucoma.
  • history of any antiglaucoma surgical treatment (Argon Laser Trabeculoplasty and/or any ocular filtering surgical intervention).
  • ocular surgery (on the globe of the eye only), or inflammation/infection within 3 months prior to baseline visit. (Applies to both fellow and study eyes.)
  • other abnormal ocular conditions or symptoms preventing the patient from entering the study, in the investigator's clinical judgement.
05

Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
996 participants (actual)

Groups and cohorts

  • This is N/A due to the above description.

    This is N/A due to the above description.

    Other: Observational

Interventions

  • OtherObservational

    This is a non-interventional study. Subgroups of naïve patients and patients with previous failure to beta-blockers therapy were analyzed.

06

What researchers measure

Primary outcomes

  1. Change in Intraocular Pressure (IOP): Baseline to Month 3

    Change: IOP at observation minus IOP at baseline. IOP was measured with the non-contact or Goldmann tonometer for a given subject. Three measurements were performed in each eye alternating between the eyes, starting with the right eye. The mean of the 3 measurements was used and if both eyes were study eyes, the mean of the 2 eyes was used.

    Time frame: Baseline, Month 3

Secondary outcomes

  1. Percentage Change in Intraocular Pressure (IOP)

    Percentage change in IOP calculated as 100 times (IOP at Observation minus IOP at Baseline) divided by IOP at Baseline.

    Time frame: Month 1, Month 3

  2. Categorized Percentage Change in Intraocular Pressure (IOP)

    Percentage change=100 times (IOP at observation minus IOP at Baseline) divided by IOP at Baseline. Percentage change in each patient assigned to the following: Increase or no change in IOP (percentage change greater than or equal to 0); Percentage reduction of up to 20% (-20 less than or equal to percentage change \< 0); Percentage reduction greater than 20% (percentage change \< -20).

    Time frame: Month 1, Month 3

Other outcomes

  1. Change in Intraocular Presssure (IOP): Baseline to Month 1

    Change: IOP at observation minus IOP at baseline. IOP was measured with the non-contact or Goldmann tonometer for a given subject. Three measurements were performed in each eye alternating between eyes, starting with the right eye. The mean of the 3 measurements was used and if both eyes were study eyes, the mean of the 2 eyes was used.

    Time frame: Baseline, Month 1

07

Results

Posted Jul 16, 2009

Participant flow

Participant flow — Overall Study
MilestoneLatanoprost All Subjects
Started996
Completed938
Not completed58
Withdrew: Adverse event7
Withdrew: Lack of efficacy9
Withdrew: Lost to follow-up24
Withdrew: Other18

Outcome measures

PrimaryChange in Intraocular Pressure (IOP): Baseline to Month 3

Change: IOP at observation minus IOP at baseline. IOP was measured with the non-contact or Goldmann tonometer for a given subject. Three measurements were performed in each eye alternating between the eyes, starting with the right eye. The mean of the 3 measurements was used and if both eyes were study eyes, the mean of the 2 eyes was used.

Time frame:
Baseline, Month 3
Reported as:
Mean · mmHg
Change in Intraocular Pressure (IOP): Baseline to Month 3
mmHgLatanoprost (All Subjects)Latanoprost (no Prior Beta-blocker Therapy)Latanaprost (Prior Beta-blocker Failure)
Change in Intraocular Pressure (IOP): Baseline to Month 3-5.3 ± 3.9-6.8 ± 3.8-4.1 ± 3.5
SecondaryPercentage Change in Intraocular Pressure (IOP)

Percentage change in IOP calculated as 100 times (IOP at Observation minus IOP at Baseline) divided by IOP at Baseline.

Time frame:
Month 1, Month 3
Reported as:
Mean · percentage change in mmHg
Percentage Change in Intraocular Pressure (IOP)
percentage change in mmHgLatanoprost (All Subjects)Latanoprost (no Prior Beta-blocker Therapy)Latanaprost (Prior Beta-blocker Failure)
Month 1 (n=982, 419, 551)-19.2 ± 20.9-22.6 ± 28.0-16.5 ± 12.7
Month 3 (n=945, 402, 531)-21.5 ± 22.2-26.1 ± 29.0-18.1 ± 14.5
SecondaryCategorized Percentage Change in Intraocular Pressure (IOP)

Percentage change=100 times (IOP at observation minus IOP at Baseline) divided by IOP at Baseline. Percentage change in each patient assigned to the following: Increase or no change in IOP (percentage change greater than or equal to 0); Percentage reduction of up to 20% (-20 less than or equal to percentage change \< 0); Percentage reduction greater than 20% (percentage change \< -20).

Time frame:
Month 1, Month 3
Reported as:
Number · participants
Categorized Percentage Change in Intraocular Pressure (IOP)
participantsLatanoprost (All Subjects)Latanoprost (no Prior Beta-blocker Therapy)Latanaprost (Prior Beta-blocker Failure)
Month 1: Increase or no change in IOP691058
Month 1: Percentage reduction of up to 20%422145274
Month 1: Percentage reduction of greater than 20%491264219
Month 3: Increase or no change in IOP621250
Month 3: Percentage reduction of up to 20%31290217
Month 3: Percentage reduction of greater than 20%571300264
Other pre-specifiedChange in Intraocular Presssure (IOP): Baseline to Month 1

Change: IOP at observation minus IOP at baseline. IOP was measured with the non-contact or Goldmann tonometer for a given subject. Three measurements were performed in each eye alternating between eyes, starting with the right eye. The mean of the 3 measurements was used and if both eyes were study eyes, the mean of the 2 eyes was used.

Time frame:
Baseline, Month 1
Reported as:
Mean · mmHg
Change in Intraocular Presssure (IOP): Baseline to Month 1
mmHgLatanoprost (All Subjects)Latanoprost (no Prior Beta-blocker Therapy)Latanaprost (Prior Beta-blocker Failure)
Change in Intraocular Presssure (IOP): Baseline to Month 1-4.7 ± 3.4-5.9 ± 3.5-3.7 ± 3.0

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Latanoprost All Subjects—0/996 (0%)—
Most frequent other events
Showing 10 of 19
Most frequent other events
EventLatanoprost All Subjects
HyperaemiaVascular disorders62/996
Adverse eventGeneral disorders34/996
Conjunctival hyperaemiaEye disorders11/996
Erythema of eyelidEye disorders4/996
ConjunctivitisEye disorders3/996
Eyelash discolourationEye disorders2/996
Sicca syndromeEye disorders2/996
Abnormal sensation in eyeEye disorders1/996
Conjunctival irritationEye disorders1/996
Conjunctival oedemaEye disorders1/996

Baseline characteristics

Age, Continuous
Age, Continuous(years)Latanoprost All Subjects
Mean61.7 ± 13.4
Sex/Gender, Customized
Sex/Gender, Customized(participants)Latanoprost All Subjects
Male395
Female596
Unspecified5
08

Study locations

No study locations are listed for this record.

09

References and documents

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 1, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00486252
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Responsible party
Sponsor
First posted
Jun 14, 2007
Start date
Jun 2007
Primary completion
Jan 2008
Completion
Jan 2008
Results posted
Jul 16, 2009
Last update
Mar 1, 2021

Study contacts

Pfizer CT.gov Call Center
study director · Pfizer

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Nov 2009. You cannot join it, but the record below documents what was studied.

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