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A Multicenter, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate Efficacy and Safety of Adding Ezetimibe 30 mg to an Ongoing Regimen of Ezetimibe 10 mg in Patients With Homozygous Sitosterolemia - Sitosterolemia High Dose Study

A Multicenter, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate Efficacy and Safety of Adding Ezetimibe 30 mg to an Ongoing Regimen of Ezetimibe 10 mg in Patients With Homozygous Sitosterolemia - Sitosterolemia High Dose Study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2004-001580-22-DE
Enrollment
30
Registered
2004-10-20
Start date
2004-12-21
Completion date
Unknown
Last updated
2014-02-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Homozygous Sitosterolemia

Interventions

Trade Name: Ezetrol Product Name: Ezetrol Product Code: MK-0653 Pharmaceutical Form: Tablet Concentration unit: mg milligram(s) Concentration type: equal Concentration number: 10, 40- Pharmaceutical f

Sponsors

MSD SHARP & DOHME GMBH
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patient is at least 18 years of age. Patient has a diagnosis of homozygous sitosterolemia, with a history of plasma sitosterol concentration of >5 mg/dL (0.13 mmol/L). Patient has been on an on-going stable regimen of ezetimibe 10 mg daily for at least 6 months prior to visit 1. Current treatment regimen for sitosterolemia and diet must be stable for at least 4 weeks prior to visit 1 and for the duration of the study. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: Patient has a condition which might pose a risk to the patient, interfere with participation in the study, or does not meet criteria for this protocol. Patient has clinically significant lab abnormalities prior to visit 2 (ALT, AST, CPK = 3 x ULN, TSH >6 mIU/L). Patient has the following conditions: uncontrolled cardiac arrhythmias, severe/unstable peripheral vascular disease, uncontrolled hypertension, impaired renal function, very poorly controlled Type 1 or Type 2 DM, active or chronic hepatobiliary or hepatic disease, positive for HIV. Patient has the following conditions within 1 month of visit 1: unstable angina pectoris, symptomatic carotid disease, myocardial infarction, coronary artery bypass surgery/other invasive coronary. Patient is on statin AND is treated with, or likely to require treatment with, an agent that has precautions or contraindications to concomitant use with the statin. Patient is taking oral corticosteroids UNLESS patient uses as stable replacement therapy for pituitary/adrenal disease. Patient is on a thiazide diuretic UNLESS treated with a stable regimen for at least 6 weeks prior to visit 1. Patient has ileal bypass surgery within 3 months prior to visit 1. Patient has a condition which might pose a risk to the patient, interfere with participation in the study, or does not meet criteria for this protocol. Patient has clinically significant lab abnormalities prior to visit 2 (ALT, AST, CPK = 3 x ULN, TSH >6 mIU/L). Patient has the following conditions: uncontrolled cardiac arrhythmias, severe/unstable peripheral vascular disease, uncontrolled hypertension, impaired renal function, very poorly controlled Type 1 or Type 2 DM, active or chronic hepatobiliary or hepatic disease, positive for HIV. Patient has the following conditions within 1 month of visit 1: unstable angina pectoris, symptomatic carotid disease, myocardial infarction, coronary artery bypass surgery/other invasive coronary. Patient is on statin AND is treated with, or likely to require treatment with, an agent that has precautions or contraindications to concomitant use with the statin. Patient is taking oral corticosteroids UNLESS patient uses as stable replacement therapy for pituitary/adrenal disease. Patient is on a thiazide diuretic UNLESS treated with a stable regimen for at least 6 weeks prior to visit 1. Patient has ileal bypass surgery within 3 months prior to visit 1.

Design outcomes

Primary

MeasureTime frame
Main Objective: In patients with sitosterolemia who have been taking ezetimibe 10 mg daily for at least 6 months prior to entry, to compare the effects of adding ezetimibe 30 mg versus placebo to ongoing ezetimibe 10-mg treatment for 26 weeks on plasma sitosterol concentration.;Secondary Objective: In patients with sitosterolemia who have been taking ezetimibe 10 mg daily for at least 6 months prior to entry: 1.To compare the effects of adding ezetimibe 30 mg versus placebo to ongoing ezetimibe 10-mg treatment for 26 weeks on plasma campesterol concentration. 2.To assess change in size of Achilles tendon-thickness and non-Achilles xanthomas relative to baseline after adding ezetimibe 30 mg versus placebo to ongoing treatment with ezetimibe 10 mg for 26 weeks. 3.To evaluate the safety and tolerability of ezetimibe 40 mg in patients with sitosterolemia previously treated with ezetimibe 10 mg. ;Primary end point(s): Plasma concentrations of sitosterol, campesterol, lathosterol, desmosterol, total cholesterol, LDL-C, radiographic assessment of Achilles tendon thickness and direct measurements of non-Achilles xanthomas.

Countries

Germany, United Kingdom

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026