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Safety and Tolerability Extension Trial for Patients With Chronic Idiopathic Constipation

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT01895543
Recruitment Status : Completed
First Posted : July 10, 2013
Results First Posted : May 9, 2016
Last Update Posted : May 9, 2016
Information provided by (Responsible Party):

Study Description
Brief Summary:
Safety and Tolerability Extension Trial for Patients with Chronic Idiopathic Constipation (CIC)

Condition or disease Intervention/treatment Phase
Chronic Idiopathic Constipation Drug: Elobixibat 10 mg Phase 3

Detailed Description:

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 Design

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 411 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Multicenter, Open-label, Safety and Tolerability Extension Trial of 5 mg and 10 mg Elobixibat Daily in the Treatment of Chronic Idiopathic Constipation
Study Start Date : September 2013
Primary Completion Date : May 2015
Study Completion Date : May 2015

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Constipation
U.S. FDA Resources

Arms and Interventions

Arm Intervention/treatment
Experimental: EBX10
Elobixibat 10 mg
Drug: Elobixibat 10 mg
10 mg Elobixibat daily, with possibility for dose adjustment to 5 mg daily.

Outcome Measures

Primary Outcome Measures :
  1. Number of Patients With Adverse Events (AEs) and Serious Adverse Events (SAEs) [ Time Frame: For the overall 52-week Treatment Period ]
    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.

  2. Incidence of Markedly Abnormal Changes in Clinical Safety Laboratory Variables [ Time Frame: For the overall 52-week Treatment Period ]
    Outcome measure include laboratory parameters from haematology, coagulation and clinical chemistry

  3. Incidence of Markedly Abnormal Changes in Electrocardiograms (ECGs) [ Time Frame: For the overall 52-week Treatment Period ]
    A routine 12-lead ECG was performed at all visits. The ECG included heart rate, PR, QRS, and QT intervals assessment.

  4. Incidence of Markedly Abnormal Changes in Body Weight and Vital Signs [ Time Frame: For the overall 52-week Treatment Period ]
    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.

  5. Number of Patients Using Concomitant Medications [ Time Frame: For the overall 52-week Treatment Period ]
    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.

Secondary Outcome Measures :
  1. Use of Concomitant Over-the-counter (OTC) Laxatives [ Time Frame: For the overall 52-week Treatment Period ]
    The use of OTC laxatives during the trial was assessed based upon the concomitant medication module of the electronic Case Report Form (eCRF).

  2. Change From Baseline in Global Evaluation of Constipation Severity [ Time Frame: At Week 12, 24, 36, and 52 ]
    The constipation severity score was measured on a 5-point scale (1: none to 5: very severe).

  3. Change From Baseline in Global Evaluation of Treatment Effectiveness [ Time Frame: At Week 12, 24, 36, and 52 ]
    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).

  4. Change From Baseline in Patient Assessment of Constipation - Quality of Life (PAC-QOL): Overall Score [ Time Frame: At Week 12, 24, 36 and 52 ]
    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'.

  5. Change From Baseline in EuroQol Group 5-Dimensions 5-Level Questionnaire (EQ-5D-5L) Scores [ Time Frame: At Week 12, 24, 36 and 52 ]
    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.

  6. Change From Baseline in EuroQol Group Visual Analog Scale (EQ-VAS) Score [ Time Frame: At Week 12, 24, 36 and 52 ]
    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.

Eligibility Criteria

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Has completed double-blind treatment in either of the lead-in efficacy trials, 000079 or 000080.
  • The patient reports having understood and has signed the Informed Consent Form (ICF) and is willing to comply with all trial visits and assessments.
  • The patient agrees to refrain from making any new, major lifestyle changes that may affect CIC symptoms (i.e., starting a new diet, changing an exercise plan) from the time of signing the ICF through to the last trial visit.

Exclusion Criteria:

  • The patient has been withdrawn/discontinued from the 000079 or 000080 trials.
  • The patient is not willing to abide by the restrictions for intake of prohibited medication.
  • Women of childbearing potential (defined, for the purpose of this trial, as all females post-puberty, not postmenopausal ≥2 years, or not surgically sterile) who have a positive urine pregnancy test at Visit 1, or who do not agree to use one of the following methods of birth control from the day of signing the ICF until 30 days after the final dose of trial drug are excluded:

    1. Transdermal patch
    2. Established use of oral, injected or implanted hormonal methods of contraception
    3. Placement of an intrauterine device (IUD) or intrauterine system (IUS).
    4. Barrier methods of contraception: Condom or Occlusive cap (diaphragm or cervical/vault caps) with spermicidal foam/gel/film/cream/suppository.
    5. Male sterilisation (with the appropriate post-vasectomy documentation of the absence of sperm in the ejaculate).
    6. True sexual abstinence: when this is in line with the preferred and usual lifestyle of the patient.
  • The patients is considered by the Investigator to be unsuitable to participate in the trial for any other reason.
Contacts and Locations

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01895543

  Show 62 Study Locations
Sponsors and Collaborators
Ferring Pharmaceuticals
Study Director: Clinical Development Support Ferring Pharmaceuticals
More Information

Responsible Party: Ferring Pharmaceuticals
ClinicalTrials.gov Identifier: NCT01895543     History of Changes
Other Study ID Numbers: 000081
2012-005601-46 ( EudraCT Number )
First Posted: July 10, 2013    Key Record Dates
Results First Posted: May 9, 2016
Last Update Posted: May 9, 2016
Last Verified: April 2016

Additional relevant MeSH terms:
Signs and Symptoms, Digestive
Signs and Symptoms