Safety and Tolerability Extension Trial for Patients with Chronic Idiopathic Constipation (CIC)
This was a Phase 3 multicenter, open-label, safety and tolerability extension trial of 10 mg elobixibat daily, with possibility for dose adjustment to 5 mg daily, for 52-week Treatment Period in patients with CIC. A dose adjustment to 5 mg/day was allowed for the remainder of the trial if a patient reported unacceptable treatment-related diarrhoea that occurred within the first four weeks of treatment. The trial enrolled patients from two lead-in, double-blind efficacy trials (trial codes NCT01827592 and NCT01833065).
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
411
10 mg Elobixibat daily, with possibility for dose adjustment to 5 mg daily.
Number of Patients With Adverse Events (AEs) and Serious Adverse Events (SAEs)
The Investigator recorded all AEs throughout the trial from the time of obtaining informed consent till the last visit (i.e., Visit 6). Information on AE was collected at each visit. All AEs were recorded in AE log for each patient.
Time frame: For the overall 52-week Treatment Period
Incidence of Markedly Abnormal Changes in Clinical Safety Laboratory Variables
Outcome measure include laboratory parameters from haematology, coagulation and clinical chemistry
Time frame: For the overall 52-week Treatment Period
Incidence of Markedly Abnormal Changes in Electrocardiograms (ECGs)
A routine 12-lead ECG was performed at all visits. The ECG included heart rate, PR, QRS, and QT intervals assessment.
Time frame: For the overall 52-week Treatment Period
Incidence of Markedly Abnormal Changes in Body Weight and Vital Signs
Vital signs were measured at all visits and included blood pressure (BP: measured after the patient had been in a seated position for ≥3 minutes of rest), pulse, respiration rate, body temperature, and body weight.
Time frame: For the overall 52-week Treatment Period
Number of Patients Using Concomitant Medications
The concomitant medications details were collected throughout the trial at all visits. Data were obtained at scheduled or unscheduled trial visits based on information provided spontaneously by the patient or as a result of questioning the patient.
Time frame: For the overall 52-week Treatment Period
Use of Concomitant Over-the-counter (OTC) Laxatives
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Genova Clinical Research, Inc.
Tucson, Arizona, United States
Preferred Research Partners
Little Rock, Arkansas, United States
Arkansas Gastroenterology
North Little Rock, Arkansas, United States
Skyline Research, LLC
Cerritos, California, United States
West Gastroenterology Associates
Los Angeles, California, United States
Sacramento Research Medical Group
Sacramento, California, United States
Stamford Therapeutics Consortium
Stamford, Connecticut, United States
Zasa Clinical Research
Boynton Beach, Florida, United States
Meridien Research
Bradenton, Florida, United States
Pulmonary Associates of Brandon
Brandon, Florida, United States
...and 52 more locations
The use of OTC laxatives during the trial was assessed based upon the concomitant medication module of the electronic Case Report Form (eCRF).
Time frame: For the overall 52-week Treatment Period
Change From Baseline in Global Evaluation of Constipation Severity
The constipation severity score was measured on a 5-point scale (1: none to 5: very severe).
Time frame: At Week 12, 24, 36, and 52
Change From Baseline in Global Evaluation of Treatment Effectiveness
The treatment effectiveness score was measured on a 5-point scale (1: extremely effective, 2: quite a bit effective, 3: moderately effective, 4: little bit effective, 5: not at all effective).
Time frame: At Week 12, 24, 36, and 52
Change From Baseline in Patient Assessment of Constipation - Quality of Life (PAC-QOL): Overall Score
PAC-QOL is a 28-item questionnaire for psychometric assessment of disease-specific QOL. The questionnaire is based on a 5-point Likert scale; ranging from 0 \[none of the time or not at all\] to 4 \[all of the time or extremely\]). A lower score indicates a better QOL. The PAC-QOL questionnaire is developed specifically for patients with constipation. PAC-QOL has four sub-scales: 'Worries and Concerns', 'Physical Discomfort', 'Psychosocial Discomfort', and 'Dissatisfaction'.
Time frame: At Week 12, 24, 36 and 52
Change From Baseline in EuroQol Group 5-Dimensions 5-Level Questionnaire (EQ-5D-5L) Scores
EQ-5D-5L is a standardised measure of health status developed to provide a simple, generic measure of health for clinical and economic appraisal. The EQ-5D-5L descriptive system comprises the following five dimensions: mobility, self care, usual activities, pain/discomfort, and anxiety/depression. Each dimension has 5 levels (1-5 denotes): no problems, slight problems, moderate problems, severe problems, and extreme problems, respectively. A unique health state was defined by combining 1 level from each of the 5 dimensions. Each health state was converted into a single EQ-5D-5L index value. The index values are country specific and values specified for United Kingdom (UK) were used for this study. The index value range for UK lies between -0.594 - 1.000. A positive index value represents better health status while the negative value represents poor health status.
Time frame: At Week 12, 24, 36 and 52
Change From Baseline in EuroQol Group Visual Analog Scale (EQ-VAS) Score
The EQ VAS presents the participant's self-evaluated health on a 20 cm vertical, visual analogue scale with endpoints labelled 'the best health you can imagine' and 'the worst health you can imagine'. This scale is numbered from 0 to 100, where '100' means best health you can imagine and '0' means worst health you can imagine. The participant simply mark an 'X' on the scale to indicate "how his/her health is TODAY" and mention the same number in a box provided.
Time frame: At Week 12, 24, 36 and 52