A Study of the Safety and Efficacy of Patients With Familial Hypercholesterolaemia Taking Colesevelam as add-on Therapy to Their Existing Medication

A Phase 4 Randomised, Double-Blind, Placebo-Controlled, Parallel-Group, MultiCentre Study of Colesevelam as Add-on Therapy in Patients With Familial Hypercholesterolaemia

This study is designed to assess whether colesevelam given as third line treatment added to a maximal tolerated and stable dose of a statin and ezetimibe is able to further decrease the level of LDL cholesterol in a safe and efficient manner in difficult to treat Familial Hypercholesterolaemia patients who are not at their target level of LDL cholesterol.

Study Overview

• Status: Completed
• Conditions: Familial Hypercholesterolemia
• Intervention / Treatment: Drug: Placebo; Drug: Colesevelam hydrochloride film-coated tablets

• Study Type: Interventional
• Enrollment (Actual): 86
• Phase: Phase 4

Contacts and Locations

Study Locations

• France
  • Paris Cedex, France
    • Service d'Endocrinologie, Metabolisme Prevention des Maladies Cardio-Vasculaires
• Germany
  • Marburg, Germany
    • Kardiologie
• Netherlands
  • Amsterdam, Netherlands
    • Academic Medical Centre
  • Nijmegen, Netherlands
    • University Medical Centre
  • Utrecht, Netherlands
    • University Medical Centre
  • Waalwijk, Netherlands
    • TweeSteden Ziekenhius
• Sweden
  • Huddinge, Sweden
    • Centre for Metabolism and Endocrinology
• United Kingdom
  • Manchester, United Kingdom
    • Department of Medicine, University of Manchester

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 75 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Patients must have a clinical diagnosis of Familial Hypercholesterolaemia defined as EITHER a.Presence of a documented LDL-receptor mutation OR b. History of untreated LDL-cholesterol level above the 95th percentile for sex and age in combination with documentation of at least one of the following: i.Presence of typical tendon xanthomas in the patient or first degree relative. ii. An LDL-cholesterol level above the 95th percentile for age and sex in a first degree relative. iii. Proven coronary artery disease in the patient or in a first degree relative under the age of 60.
• Patients must have provided and undergone lifestyle changes for more than 6 months at the time of Screening
• Patients must have been treated for at least 3 consecutive months preceding the Screening visit with a lipid lowering treatment regimen consisting of maximal tolerated combination of a statin with ezetimibe and are still above their target for LDL cholesterol being 2.5 mmol/L (100 mg/dL)
• Patients must be committed to following the protocol requirements as evidence by written informed consent
• Patients should be comfortable with swallowing 3 placebo tablets

Exclusion Criteria:

• Patients with a known allergy to any of the components used in colesevelam or placebo or any other medications like statin or ezetimibe required for participation in this study
• Patients with a bowel or biliary obstruction
• Patients with secondary causes of hypercholesterolaemia, e.g., dysproteinaemia, hypothyroidism, nephrotic syndrome (defined as proteinuria >2 g/L), obstructive liver disease, other pharmacological therapies, alcoholism
• Patients with triglyceride level of > 3.4 mmol/L
• Patients with dysphagia, swallowing disorders, severe gastrointestinal motility disorders, inflammatory bowel disease, or major gastrointestinal tract surgery
• Patients have undergone LDL-apheresis within one year prior to the screening visit and/or need to undergo LDL-apheresis
• Patients with active liver disease or unexplained persistent elevations in transaminases
• Patients on fenofibrates or on concomitant cholestyramine as this will affect the area under the curve (AUC) of ezetimibe
• Patients with poorly-controlled diabetes (i.e., HbA1c>9% at Screening)
• Patients with clinically significant (CS) abnormal haematology, renal, or other laboratory parameters that could be the result of an underlying malignancy or systemic infection as judged by the investigator
• Patients with a heart transplant, concurrent congestive heart failure (NYHA Class 3 or 4), life-threatening ventricular arrhythmias, unstable angina, recent myocardial infarction within the past 6 months prior to screening, or patients undergoing haemodialysis, or with active disease who may not be healthy enough to successfully complete all protocol requirements
• Fertile women who are pregnant, nursing or using either no or an inadequate form of contraception taking into account the recommendations for adequate intake of oral contraceptives as outlined in concomitant medication section
• Patients with a recent history of alcoholism or drug abuse, or sever emotional behavioural or psychiatric problems who may not be able to adequately comply with the requirements of the study or who may be unable to consent
• Patients receiving experimental medications or participating in another study using an experimental drug or procedure within 30 days prior to signing informed consent

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Quadruple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Placebo Comparator: Placebo	Drug: Placebo; Tablets
Experimental: Colesevelam hydrochloride film-coated tablets	Drug: Colesevelam hydrochloride film-coated tablets; tablets; Other Names: Cholestagel

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Relative reduction in LDL cholesterol	Between baseline and 6 weeks DB treatment

Secondary Outcome Measures

Outcome Measure	Time Frame
Relative reduction in HDL, total cholesterol, ApoA1,ApoB,ApoB/ApoA1ratio, triglycerides	Between Baseline and week 6 and week 12 DB treatment
Relative reduction in LDL cholesterol	Between Baseline and week 12 DB treatment

Collaborators and Investigators

• Sponsor: Genzyme, a Sanofi Company

Study record dates

Study Major Dates

• Study Start: August 1, 2007
• Primary Completion (Actual): December 1, 2008
• Study Completion (Actual): October 1, 2009

Study Registration Dates

• First Submitted: April 3, 2008
• First Submitted That Met QC Criteria: April 8, 2008
• First Posted (Estimate): April 9, 2008

Study Record Updates

• Last Update Posted (Estimate): February 11, 2014
• Last Update Submitted That Met QC Criteria: February 10, 2014
• Last Verified: February 1, 2014

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Metabolic Diseases; Genetic Diseases, Inborn; Metabolism, Inborn Errors; Lipid Metabolism Disorders; Hyperlipidemias; Dyslipidemias; Lipid Metabolism, Inborn Errors; Hyperlipoproteinemias; Hypercholesterolemia; Hyperlipoproteinemia Type II; Molecular Mechanisms of Pharmacological Action; Antimetabolites; Anticholesteremic Agents; Hypolipidemic Agents; Lipid Regulating Agents; Colesevelam Hydrochloride
• Other Study ID Numbers: CHOL00107; EudraCT 2007-000582-37 (Registry Identifier: EudraCT)