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CompletedNCT01506895Updated Nov 21, 2016

A Phase 2 Clinical Study to Investigate Effects of Darapladib in Subjects With Diabetic Macular Edema

A Phase 2 interventional study of darapladib and placebo in Retinopathy, Diabetic, sponsored by GlaxoSmithKline. Completed at 16 sites in 5 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2016-11-21.

Sponsored by GlaxoSmithKline · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
54
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to characterize the systemic and ocular safety and tolerability, pharmacokinetics, exploratory efficacy and pharmacodynamics of 3 months of repeat administration of oral darapladib in diabetic macular edema patients with centre involvement.

Read the detailed description

This is a multi-national, multi-centre, randomised, double-masked, placebo-controlled, parallel-group study of repeat oral administration of 160 mg darapladib for 3 months in adult subjects with DME with centre involvement.

Eligible subjects will be randomised in a 2:1 ratio of active treatment to placebo, with the placebo group to allow a comparison of safety between treatment arms and to minimize the open label effect that can be observed with the visual acuity endpoint.

The primary aim of the study is to determine the effect of repeat doses of darapladib on the mean change from baseline of both best-corrected visual acuity (BCVA) and spectral domain OCT (SD-OCT) centre subfield. The study eye will be examined for changes over the life of the study. As this investigational treatment is systemic, the fellow eye may be examined in tandem to provide additional data.

02

Conditions studied

  • Retinopathy, Diabetic

Keywords

  • Diabetic Macular Edema
03

In context

Macular Edema

841 studies on the registry are indexed under Macular Edema; 56 are open to participants now.

This study's enrollment of 54 is close to the median of 50 across 619 interventional studies indexed under Macular Edema.

Browse Macular Edema studies →

Lead sponsor

GlaxoSmithKline is the lead sponsor of 3,562 studies on the registry; 117 are open to participants now.

Of its 258 completed or terminated interventional studies of FDA-regulated products, 232 (90%) 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

Inclusion criteria

  • A female subject is eligible to participate if she is of: Non-childbearing potential or child-bearing potential and agrees to contraception for an appropriate period of time
  • Diagnosis of diabetes mellitus (type 1 or type 2)
  • Confirmation of DME in the study eye by angiography
  • Confirmation of retinal thickening in the study eye by study doctor
  • Best corrected visual acuity score of 78-24 letters in the study eye

Exclusion criteria

Exclusion Criteria:

  • Additional eye disease in the study eye that could compromise study assessments
  • Intraocular surgery, or laser photocoagulation in the study eye within 3 months of dosing
  • Uncontrolled intraocular pressure in the study eye despite treatment with glaucoma medication
  • Uncontrolled diabetes
  • Certain types of liver disease
  • Severe reduction in kidney function OR removal of a kidney OR kidney transplant
  • Blood pressure higher than normal despite lifestyle changes and treatment with medications
  • Certain medications that may interfere with the study medication or eye assessments (these will be identified by the study doctor)
  • Current severe heart failure
  • Severe asthma that is poorly controlled with medication
  • Previous severe allergic reaction to food, medications, drink, insect stings, etc
  • If both birth parents are at least 50% Japanese, Chinese, or Korean ancestry, must have a blood sample collected for Lp-PLA2 activity. Those with Lp-PLA2 activity less than or equal to 20.0 nmol/min/mL are excluded
  • Recent participation in a study of an investigational medication
  • Any other reason the investigator deems the subject should not participate in the study
  • Other protocol-defined inclusion/exclusion criteria may apply
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
54 participants (actual)

Study arms

  • Experimental
    darapladib

    darapladib dosed at 160 mg once daily

    Drug: darapladib

  • Placebo comparator
    placebo

    Placebo to match once daily

    Drug: placebo

Interventions

  • Drugdarapladib

    Experimental compound 160 mg dose

  • Drugplacebo

    Placebo to match

06

What researchers measure

Primary outcomes

  1. Change from baseline in Visual Acuity as measured by ETDRS BCVA

    Mean change from baseline in ETDRS Best Corrected Visual Acuity (BCVA) after 3 months of treatment

    Time frame: 3 months

  2. Change from baseline in Spectral Domain Optical Coherance Tomography

    Mean change from baseline in SD-OCT after 3 months of treatment

    Time frame: 3 months

Secondary outcomes

  1. Changes in Retinal Anatomy

    Changes in retinal anatomy as assessed by fluorescein angiography and fundus photography and SD-OCT in the study eye

    Time frame: 3 months

  2. Safety and Tolerability as assessed by change from baseline in outcome measures

    Safety and tolerability as assesed by: change from baseline in blood pressure and heart rate; assessed by change from baseline in complete ophthalmic exam and visual acuity; assessed by change from baseline in clinical laboratory tests; assessed by change from baseline in the collection of adverse events

    Time frame: 3 months

  3. Changes in Pharmacodynamic LP-PLA2 enzyme inhibition

    Changes over 3 months in the study of LP-PLA2 Enzyme inhibition as data permit

    Time frame: 3 months

  4. Peak plasma concentration (Cmax) of study drug

    Plasma Pharmacokinetic parameters of darapladib as data permit

    Time frame: 3 months

  5. Plasma concentration versus time curve (AUC) of study drug

    Plasma Pharmacokinetic parameters of darapladib as data permit

    Time frame: 3 months

07

Study locations

16 sites
  • GSK Investigational Site
    Parramatta, New South Wales 2150, Australia
  • GSK Investigational Site
    Sydney, New South Wales 2000, Australia
  • GSK Investigational Site
    East Melbourne, Victoria 3002, Australia
  • GSK Investigational Site
    Nedlands, Western Australia 6009, Australia
  • GSK Investigational Site
    Glostrup, Denmark
  • GSK Investigational Site
    Freiburg, Baden-Wuerttemberg 79106, Germany
  • GSK Investigational Site
    Ulm, Baden-Wuerttemberg 89075, Germany
  • GSK Investigational Site
    Koeln, Nordrhein-Westfalen 51109, Germany
  • GSK Investigational Site
    Muenster, Nordrhein-Westfalen 48145, Germany
  • GSK Investigational Site
    Leipzig, Sachsen 04103, Germany
  • GSK Investigational Site
    Milano, Lombardia 20132, Italy
  • GSK Investigational Site
    Milano, Lombardia 20157, Italy
  • GSK Investigational Site
    Torino, Piemonte 10122, Italy
  • GSK Investigational Site
    Padova, Veneto 35128, Italy
  • GSK Investigational Site
    Amsterdam, 1105 AZ, Netherlands
  • GSK Investigational Site
    Rotterdam, 3011 BH, Netherlands
08

References and documents

Individual participant data

Plan to share: Yes — Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 21, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01506895
Lead sponsor
GlaxoSmithKline
Responsible party
Sponsor
First posted
Jan 10, 2012
Start date
Feb 2012
Primary completion
Feb 2013
Completion
Feb 2013
Last update
Nov 21, 2016

Study contacts

GSK Clinical Trials
study director · GlaxoSmithKline

Oversight

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

Not currently enrolling

This study is completed, as verified in Nov 2016. You cannot join it, but the record below documents what was studied.

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