Open-Label Extension and Safety Study for Participants With Crohn's Disease Previously Enrolled in the Etrolizumab Phase III Study GA29144

Phase 3TerminatedNCT02403323

Hoffmann-La Roche790 enrolled

Overview

This open-label extension and safety monitoring study is composed of two parts: Part 1 will evaluate the long-term safety and efficacy of continued etrolizumab treatment in participants with moderately to severely active Crohn's disease who were previously enrolled in the etrolizumab Phase III Study GA29144 (NCT02394028) and who meet eligibility criteria for enrollment into Part 1. In Part 2, participants who have stopped etrolizumab treatment (either by exiting Part 1 of this study or by entering directly from Study GA29144 \[NCT02394028\]) will be monitored for 92 weeks for progressive multifocal leukoencephalopathy (PML) and other safety events.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

790

Conditions

Crohn Disease

Interventions

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: Part 1 Open-Label Extension: * Patients previously enrolled in etrolizumab Phase III study GA29144 (NCT02394028) who meet the eligibility criteria for open-label etrolizumab as described in the protocol Part 2 Safety Monitoring: * Patients who participated in etrolizumab Phase III study GA29144 (NCT02394028) and are not eligible or choose not to enter Part 1 * Patients who transfer from Part 1 * Completion of the 12-week safety follow-up period prior to entering Exclusion Criteria: Part 1 Open-Label Extension: * Any new, significant, uncontrolled condition Part 2 Safety Monitoring: * No exclusion criteria

Locations (287)

Valley Gastroenterology Consultants

Arcadia, California, United States

University of California San Diego Medical Center

La Jolla, California, United States

VA Long Beach Healthcare System

Long Beach, California, United States

Digestive Care Associates, A Medical Corporation

San Carlos, California, United States

SDG Clinical Research

San Diego, California, United States

Outcomes

Primary Outcomes

Part 1: Number of Participants With Crohn's Disease Activity Index (CDAI) Remission at 12-week Intervals

CDAI is a score obtained from composite of eight assessments: number of liquid or soft stools, abdominal pain, general well-being, presence of complications, taking lomotil (diphenoxylate/atropine) or other opiates for diarrhea, presence of an abdominal mass, hematocrit, and percentage deviation from standard weight. A decrease in CDAI over time indicates improvement in disease activity. CDAI scores range from 0 to 600. A higher score indicates worse outcome. A total score of less than 150 corresponds to remission.

Time frame: Day 1 and Weeks 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240 and 252 of OLE

Part 1: Number of Participants With Clinical Remission at 12-week Intervals

Clinical remission was defined as a liquid/soft stool frequency (SF) mean daily score ≤3 and an abdominal pain (AP) mean daily score ≤1 with no worsening in either subscore compared to baseline, where the average was taken over 7 days prior to visit. Abdominal pain severity was assessed using the abdominal pain questionnaire which is an 11-point numeric rating scale with score ranging from 0 (no pain) to 10 (worse pain). Liquid/soft stool frequency was reported using the bristol stool form scale which classifies stools into seven groups based on its consistency i.e., type 1- separate hard lumps, type 2- sausage-shaped but lumpy, type 3- like a sausage but with cracks on the surface, type 4- like a sausage or snake, smooth and soft, type 5- soft blobs with clear-cut edges, type 6- fluffy pieces with ragged edges and type 7- entirely liquid with no solid pieces.

Time frame: Day 1 and Weeks 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240 and 252 of OLE

Part 1: Number of Participants With Improvement in Simple Endoscopic Score for Crohn's Disease (SES-CD) Score at Week 108

SES-CD is an endoscopic score composite of 4 variables (ulcers size, percentage of ulcerated surface, inflamed surface, and presence of narrowing) in up to 5 ileocolonic segments (ileum right, colon, transverse colon, left colon, rectum) and scored on a scale of 0-3, with total score from 0-60. Higher score indicates higher ulcer surface/size in the 4 variables. Endoscopic improvement was defined as ≥50% reduction in SES-CD score compared to baseline.

Time frame: At OLE Week 108

Part 1: Number of Participants With Adverse Event (AE) and Severity of AEs as Assessed Using National Cancer Institute Common Terminology Criteria for Adverse Events, Version 4.0 (NCI-CTCAE v4.0)

An AE is any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and that does not necessarily have a causal relationship with this treatment. AEs were graded as per NCI CTCAE v4.0. Grade 1=Mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; or intervention not indicated; Grade 2=Moderate; minimal, local or non-invasive intervention indicated; or limiting age-appropriate instrumental activities of daily living; Grade 3=Severe or medically significant, but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; or limiting self-care activities of daily living. Grade 4=Life threatening consequences, urgent intervention indicated; Grade 5=Death related to AE. Multiple occurrences of AEs in the same category at the worst (highest) NCIC-CTCAE grade for an individual are counted only once.

Time frame: From Day 1 up to end of 12-week safety follow-up in OLE (approximately 6.3 years)

Part 1: Number of Participants With Serious Adverse Events (SAEs)

An AE is any untoward medical occurrence in a participant administered a pharmaceutical product and regardless of causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of an investigation, whether or not considered related to the medicinal (investigational) product. A SAE is any significant hazard, contraindication, side effect that is fatal or life-threatening, requires hospitalization or prolongation of an existing hospitalization, results in persistent or significant disability/ incapacity, is a congenital anomaly/ birth defect, is medically significant or requires intervention to prevent one or other of the outcomes listed above.