To determine the dose or doses of PF-00547659 that will be the most effective to improve or halt the disease symptoms in patients with moderate to severe ulcerative colitis.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
357
Placebo delivered subcutaneous injection, 3 doses separated by 4 weeks
Drug Dose Level 1 delivered subcutaneous injection, 3 doses separated by 4 weeks
Drug Dose Level 2 delivered subcutaneous injection, 3 doses separated by 4 weeks
Percentage of Participants in Clinical Remission at Week 12
Clinical remission was defined as a Total Mayo Score of less than or equal (\<=) 2 points with no individual subscore exceeding 1 point and rectal bleed subscore of 0 or 1. The Mayo Score is a tool designed to measure disease activity for ulcerative colitis (UC). Scoring ranges from 0 to 12 points and consists of 4 subscores, each graded 0 to 3 with higher score indicating more severe disease activity. Endoscopic readings from the local and the central reader were considered for analysis. The central reading was used as the primary analysis and the local readings were used for the sensitivity analyses.
Time frame: Week 12
Percentage of Participants With Clinical Response at Week 12
Clinical response was defined as a decrease from baseline of at least 3 points in Total Mayo Score with at least a 30 percent (%) change, accompanied by at least 1 point decrease or absolute score of 0 or 1 in rectal bleeding subscore. The Mayo Score is a tool designed to measure disease activity for UC. Scoring ranges from 0 to 12 points and consists of 4 subscores, each graded 0 to 3 with higher score indicating more severe disease activity. Endoscopic readings from the local and the central reader were considered for analysis. The central reading was used as the primary analysis and the local readings were used for the sensitivity analyses.
Time frame: Week 12
Percentage of Participants With Mucosal Healing at Week 12
Mucosal healing was defined as absolute Mayo subscore for endoscopy of 0 or 1. The Mayo Score is a tool designed to measure disease activity for UC. Scoring ranges from 0 to 12 points and consists of 4 subscores, each graded 0 to 3 with higher score indicating more severe disease activity. Endoscopic readings from the local and the central reader were considered for analysis. The central reading was used as the primary analysis and the local readings were used for the sensitivity analyses.
Time frame: Week 12
Percentage of Participants With Absolute Partial Mayo Score of Less Than or Equal to (<=) 2 With no Individual Subscore More Than (>) 1 at Weeks 4, 8, and 12
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Drug Dose Level 3 delivered subcutaneous injection, 3 doses separated by 4 weeks
Drug Dose Level 4 delivered subcutaneous injection, 3 doses separated by 4 weeks
Mayo Clinic Arizona
Scottsdale, Arizona, United States
UCSD Health System-Pharmacy only
La Jolla, California, United States
Clinical and Translational Research Institute
La Jolla, California, United States
Perlman Medical Offices
La Jolla, California, United States
Thornton Hospital
La Jolla, California, United States
Community Clinical Trials
Orange, California, United States
GastroDiagnostics - Community Clinical Trials Drug
Orange, California, United States
Rocky Mountain Clinical Research, LLC.
Denver, Colorado, United States
Clinical Research of the Rockies
Lafayette, Colorado, United States
Rocky Mountain Gastroenterology Associates
Thornton, Colorado, United States
...and 180 more locations
An absolute Partial Mayo Score of \<=2 corresponds to remission. However, this endpoint was incorrectly stated in the protocol and instead of "absolute Partial Mayo Score \<=2", it was stated as "change from baseline in Partial Mayo Score \<=2".
Time frame: Weeks 4, 8, and 12
Change From Baseline in Total Mayo Score at Week 12
The Mayo Score is a tool designed to measure disease activity for UC. Scoring ranges from 0 to 12 points and consists of 4 subscores, each graded 0 to 3 with higher score indicating more severe disease activity. Endoscopic readings from the local and the central reader were considered for analysis. The central reading was used as the primary analysis and the local readings were used for the sensitivity analyses.
Time frame: Baseline, Week 12
Percentage of Participants With Change From Baseline in Individual Mayo Subscores - Stool Frequency, Rectal Bleeding, and Physician's Global Assessment (PGA) - at Weeks 4, 8, and 12
The Mayo Score is a tool designed to measure disease activity for UC. Scoring ranges from 0 to 12 points and consists of 4 subscores (stool frequency, rectal bleeding, PGA, findings on flexible sigmoidoscopy), each graded 0 to 3 with higher score indicating more severe disease activity. Endoscopic readings from the local and the central reader were considered for analysis. The central reading was used as the primary analysis and the local readings were used for the sensitivity analyses. Changes from baseline in the subscore of less than (\<) 0, 0, and \>0 corresponded to improvement (imp), no change (NC), and worsening (wors) in that specific subscore.
Time frame: Baseline; Weeks (W) 4, 8, and 12
Percentage of Participants With Change From Baseline in Individual Mayo Subscore - Findings on Flexible Sigmoidoscopy - at Week 12
The Mayo Score is a tool designed to measure disease activity for UC. Scoring ranges from 0 to 12 points and consists of 4 subscores (stool frequency, rectal bleeding, PGA, findings on flexible sigmoidoscopy), each graded 0 to 3 with higher score indicating more severe disease activity. Endoscopic readings from the local and the central reader were considered for analysis. The central reading was used as the primary analysis and the local readings were used for the sensitivity analyses. Changes from baseline in the subscore of \<0, 0, and \>0 corresponded to improvement (imp), no change (NC), and worsening (wors) in that specific subscore.
Time frame: Baseline, Week 12
Percent Change From Baseline in Fecal Calprotectin at Weeks 4, 8, and 12
Fecal calprotectin was one of the pharmacodynamic (PD) biomarkers of the study.
Time frame: Baseline, Weeks 4, 8, and 12
Percent Change From Baseline in High Sensitivity C-reactive Protein (hsCRP) at Weeks 4, 8, and 12
hsCRP was one of the PD biomarkers of the study.
Time frame: Baseline; Weeks 4, 8, and 12
Change From Baseline in Inflammatory Bowel Disease Questionnaire (IBDQ) Total Score at Week 12
IBDQ: Psychometrically validated patient reported outcome (PRO) instrument for measuring disease-specific quality of life (QOL) in participants with inflammatory bowel disease. IBDQ consists of 32 items, each item score ranged from 1 (worst possible response) to 7 (best possible response). Total score is the sum of each item score, ranged from 32 to 224 with higher score indicating better QOL. Positive change in total score indicated improvement in QOL.
Time frame: Baseline, Week 12
Change From Baseline in Inflammatory Bowel Disease Questionnaire (IBDQ) Domain Scores at Week 12
IBDQ: Psychometrically validated PRO instrument for measuring disease-specific QOL in participants with inflammatory bowel disease. IBDQ consists of 32 items, each item score ranged from 1 (worst possible response) to 7 (best possible response). Total score is the sum of each item score, ranged from 32 to 224 with higher score indicating better QOL. Positive change in total score indicated improvement in QOL. There are 4 individual domains under the IBDQ: bowel function (fx)/symptoms (score range of 10-70), systemic symptoms (score range of 5-35), emotional status/fx (score range of 12-84), and social fx (score range of 5-35). As with total score, higher scores indicate better QOL in that domain.
Time frame: Baseline (BL), Week 12
Percentage of Participants With an Inflammatory Bowel Disease Questionnaire (IBDQ) Total Score of More Than or Equal to (>=) 170 at Week 12
IBDQ: Psychometrically validated PRO instrument for measuring disease-specific QOL in participants with inflammatory bowel disease. IBDQ consists of 32 items, each item score ranged from 1 (worst possible response) to 7 (best possible response). Total score is sum of each item score, ranged from 32 to 224 with higher score indicating better QOL. Positive change in total score indicated improvement in QOL. A score of \>=170 corresponds to clinical remission.
Time frame: Week 12
Number of Participants With Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs), and Withdrawals Due to TEAEs During the Treatment Period (Weeks 0-12)
An adverse event (AE) was any untoward medical occurrence attributed to study drug in a participant who received study drug. TEAEs are defined as newly occurring AEs or those worsening after first dose. AEs comprised both SAEs and non-SAEs. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.
Time frame: Screening through to end of treatment period, up to 12 weeks
Maximum Serum PF-00547659 Concentration Achieved
Time frame: Weeks 0 (baseline), 2, 4,8, 12, 16, 20, 24, 28, 32, and 36; Early Withdrawal