Dose Ranging Study of the Safety and Efficacy of R115966 in Plaque Psoriasis
A Randomized, Evaluator-Blind, Placebo-Controlled, Parallel-Group Dose-Ranging Study of the Safety and Efficacy of Oral R115866 and R115866 Placebo in the Treatment of Plaque Psoriasis
1 other identifier
interventional
176
5 countries
22
Brief Summary
Eligible subjects will be randomly assigned to one of three dose regimens of oral R115866 or placebo for the treatment of severe plaque psoriasis for 12 twelve weeks. The safety and efficacy of R115866 will be evaluated during the treatment period and the 8-week post treatment follow-up period.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Jun 2006
Shorter than P25 for phase_2
22 active sites
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
June 1, 2006
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2007
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2007
CompletedFirst Submitted
Initial submission to the registry
July 15, 2008
CompletedFirst Posted
Study publicly available on registry
July 16, 2008
CompletedResults Posted
Study results publicly available
January 29, 2018
CompletedJanuary 29, 2018
May 1, 2017
11 months
July 15, 2008
March 10, 2017
June 28, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Psoriasis Area Severity Index (PASI)75 Success at Visit 6
PASI75 success at Visit 6 was defined as number of participants who achieved at least 75% reduction in PASI scores at Visit 6 compared to Visit 2 (Baseline). The PASI score was determined through evaluation of body surface area (BSA) covered by plaque psoriasis in four regions (head/neck, upper extremities, trunk and lower extremities). This assessment included a combination of both degree of involvement (assessed as per the % of affected body area using a 7-point scale that ranged as 0 (0% involvement), 1 = 1-9%, 2 = 10-29%, 3 = 30-49%, 4 = 50-69%, 5 = 70-89% and 6 = 90-100%) and severity (evaluated individually using a 5-point scale that ranged as 0 = No evidence of sign, 1 = slight evidence of sign, 2 = moderate evidence of sign, 3 = marked evidence of sign and 4 = very marked, most severe evidence of sign) of erythema, induration and desquamation in each of the same four regions. PASI score ranged from 0 to 72 in 0.1-unit intervals; higher scores indicating worse psoriasis.
Week 12 (Visit 6)
Secondary Outcomes (3)
PASI50 Success (the Reduction in PASI Score at Each Visit of at Least 50 Percent Relative to Visit 2) at Each Post Baseline Visit
Week 1 to Week 20 (Visit 3 to Visit 8)
Investigator's Global Assessment (IGA) at Each Post Baseline Visit
Week 1 to Week 20 (Visit 3 to Visit 8)
PASI75 at Each Post Baseline Visit Except Visit 6
Week 1 to Week 20 (Visit 3 to Visit 8) except Week 12 (Visit 6)
Study Arms (4)
A
ACTIVE COMPARATORTalarozole 0.5 mg
B
ACTIVE COMPARATORTalarozole 1.0 mg
C
ACTIVE COMPARATORTalarozole 2.0 mg
D
PLACEBO COMPARATORTalarozole matching Placebo
Interventions
Eligibility Criteria
You may qualify if:
- Plaque Psoriasis with PASI greater than or equal to 10
- Male or a female who was NOT of childbearing potential (i.e., post- menopausal for greater than 12 months or had a complete hysterectomy);
You may not qualify if:
- Spontaneously improving or rapidly deteriorating plaque psoriasis
- Guttate, pustular, erythrodermic, or other non-plaque form of psoriasis
- Subject was under treatment for a heart disorder or had a history of cardiovascular disease (excluding effectively controlled hypertension)
- Any acute psychiatric condition, including an increased risk for suicide attempt, based on medical and psychiatric history
- Previous use of a psoriasis vaccine or had participated in an investigational study of a psoriasis vaccine
- Previous use of systemic immunomodulatory therapy known to affect psoriasis and to typically decrease immune cell populations
- Previous use of any systemic immunomodulatory therapy known to affect psoriasis and NOT typically to decrease immune cell populations
- Previous use of any photo-therapy (including laser), photo-chemotherapy, or systemic psoriasis therapy (such as systemic corticosteroids, methotrexate, retinoids, or cyclosporine) within the previous four weeks
- Pregnant or a nursing mother
- Significant coexisting hepatic, renal, or bone marrow disease, hyperlipidemia, chronic pancreatitis, osteoporosis, cancer (except non-melanoma skin cancer), a positive test for human immunodeficiency virus (HIV), a history indicating adrenal cortex dysfunction
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Stiefel, a GSK Companylead
- GlaxoSmithKlinecollaborator
Study Sites (22)
GSK Investigational Site
Augsburg, Germany
GSK Investigational Site
Berlin, Germany
GSK Investigational Site
Dresden, Germany
GSK Investigational Site
Frankfurt, Germany
GSK Investigational Site
Hamburg, Germany
GSK Investigational Site
Salzwedel, Germany
GSK Investigational Site
Cork, Ireland
GSK Investigational Site
Maastricht, Netherlands
GSK Investigational Site
Nijmegen, Netherlands
GSK Investigational Site
Korolyov, Russia
GSK Investigational Site
Lipetsk, Russia
GSK Investigational Site
Moscow, Russia
GSK Investigational Site
Saint Petersburg, Russia
GSK Investigational Site
Smolensk, Russia
GSK Investigational Site
Veliky Novgorod, Russia
GSK Investigational Site
Yaroslavl, Russia
GSK Investigational Site
Aberdeen, United Kingdom
GSK Investigational Site
Amersham, United Kingdom
GSK Investigational Site
Coventry, United Kingdom
GSK Investigational Site
Glasgow, United Kingdom
GSK Investigational Site
Manchester, United Kingdom
GSK Investigational Site
Norwich, United Kingdom
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- GSK Response Center
- Organization
- GlaxoSmithKline
Study Officials
- STUDY DIRECTOR
GSK Clinical Trials
GlaxoSmithKline
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 15, 2008
First Posted
July 16, 2008
Study Start
June 1, 2006
Primary Completion
May 1, 2007
Study Completion
May 1, 2007
Last Updated
January 29, 2018
Results First Posted
January 29, 2018
Record last verified: 2017-05