Safety, Efficacy, and Tolerability Study of ASP3291 in Patients With Active Ulcerative Colitis
A Phase 2, Randomized, Double-Blind, Parallel, Placebo-Controlled, Proof-of-Concept Study to Assess the Efficacy, Safety, and Tolerability of ASP3291 in Patients With Active Ulcerative Colitis
  • Phase

    Phase 2
  • Study Type

  • Status

    Completed No Results Posted
  • Intervention/Treatment

    asp3291 ...
  • Study Participants

This is a Phase 2, randomized, double-blind, multicenter, parallel, placebo controlled study. Approximately 120 eligible patients with mild-to-moderate active ulcerative colitis will be randomized to double blind treatment of either 1,000 mg twice daily (b.i.d.) ASP3291 (2,000 mg/d) or matching placebo in a 1:1 ratio for 8 weeks.

The study hypothesis is that treatment with ASP3291 compared to placebo will improve a patient's ulcerative colitis endoscopic score from baseline to Week 8.
Study Started
Jul 31
Primary Completion
Apr 30
Study Completion
Apr 30
Last Update
Sep 28

Drug ASP3291

Tablet, 1,000 mg (four 250-mg tablets), twice a day, 8 weeks

Drug Placebo

Matching placebo tablets

ASP3291 Experimental

Placebo Placebo Comparator


Inclusion Criteria:

Documented diagnosis of ulcerative colitis by endoscopy and histology consistent with diagnosis
Must be able to provide informed consent
Has a Modified Baron Score of at least 2 (as determined by the investigator) at 15 cm or more from the anal verge as assessed during the screening period
Has an Ulcerative Colitis Clinical Score (UCCS) of at least 4, with a stool frequency and rectal bleeding score of at least 1 as assessed during the screening period
If female, is at least 2 years postmenopausal, surgically sterile per documentation provided by a medical professional, agrees to sexual abstinence, or uses two approved highly effective methods of birth control during the study period and for 30 days after the last dose of study drug
If male, agrees to sexual abstinence or to use two highly effective methods of birth control during the study period and for 90 days after last dose; agrees to not donate sperm during the study period and for 90 days after last dose
Willing and able to comply with the study requirements

Exclusion Criteria:

Has a history of any clinically significant neurological, renal, hepatic, gastrointestinal, pulmonary, metabolic, cardiovascular, psychiatric, endocrine, hematological disorder or disease, or any other medical condition that, in the investigator's opinion, would preclude participation in the study

Has severe Ulcerative Colitis as defined by an average bloody stool frequency of >6 per day and at least one of the following:

Resting heart rate >90 bpm
Oral temperature of >38°C (>100.4°F)
Hemoglobin of <10.5 g/dL
Has has undergone previous resective colonic surgery
Has a significant or immediate risk for toxic megacolon
Has previous diagnosis with Crohn's disease, indeterminate colitis, microscopic colitis or acute diverticulitis based on medical history
Has an extension of disease limited to ulcerative proctitis (i.e., disease extension less than 15 cm from the anal verge)
Has an active peptic ulcer disease based on medical history
Shows a stool culture positive for enteric pathogens during the screening period
Had previous treatment with tumor necrosis factor-α (TNF α) inhibitors
Had treatment with rectal corticosteroid within 2 weeks before Day -2
Has active liver disease or alanine aminotransferase (ALT) or aspartate aminotransferase (AST) >2 times the upper limit of normal (ULN) at screening
Has an estimated glomerular filtration rate (using Cockroft-Gault formula corrected for body surface area) of <60 mL/min at screening
Known history of human immunodeficiency virus antibody
History of severe allergic or anaphylactic reactions requiring medical attention
Has participated in another investigational study within 30 days before Visit 3
History of drug or alcohol abuse in the past 2 years
Has previously participated in a study with ASP3291
No Results Posted