Effect of MK0524A on Flushing Caused by Niacin

This study has been completed.
Information provided by:
Merck Sharp & Dohme Corp.
ClinicalTrials.gov Identifier:
First received: September 19, 2007
Last updated: July 22, 2009
Last verified: July 2009

The primary objective of the study is to assess the effects of MK0524A in reducing flushing associated with niacin.

Condition Intervention Phase
Drug: MK0524A, /Duration of Treatment : 4 Weeks
Drug: Comparator : niacin /Duration of Treatment : 1 Weeks
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Treatment
Official Title: A Multicenter, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Tolerability and Effect of MK0524A on Niacin-Induced Acute Flushing in Lipid Clinic Patients

Resource links provided by NLM:

Further study details as provided by Merck Sharp & Dohme Corp.:

Primary Outcome Measures:
  • MK-0524A produces less flushing during the acute dosing period than niacin extended-release as measured by maximum Global Flushing Severity Score (GFSS) categorized as none/mild, moderate, severe, extreme. [ Time Frame: Over 1 week ]

Secondary Outcome Measures:
  • MK-0524A produces less flushing during the acute dosing period than niacin extended-release as measured by (a) maximum daily GFSS; and (b) percentage of patients with a maximum GFSS =4 (moderate or greater). [ Time Frame: Daily ]

Estimated Enrollment: 330
Study Start Date: April 2007
Study Completion Date: August 2007
Primary Completion Date: August 2007 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   18 Years to 70 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patient is male or female between 18 and 70 years of age
  • Females of reproductive potential must agree to take acceptable contraceptive precautions for the duration of the study

Exclusion Criteria:

  • Patient has a history of hypersensitivity to niacin or niacin-containing products
  • Patient is currently experiencing menopausal hot flashes
  • Patient consumes more than 2 alcoholic beverages per day
  • Patient has poorly controlled Type 1 or Type 2 diabetes mellitus
  • Patient engages in vigorous exercise or an aggressive diet regimen
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00533611

Sponsors and Collaborators
Merck Sharp & Dohme Corp.
Study Director: Medical Monitor Merck Sharp & Dohme Corp.
  More Information

Responsible Party: Executive Vice President, Clinical and Quantitative Sciences, Merck & Co., Inc.
ClinicalTrials.gov Identifier: NCT00533611     History of Changes
Other Study ID Numbers: 2007_604, MK0524A-056
Study First Received: September 19, 2007
Last Updated: July 22, 2009
Health Authority: China: Ministry of Health

Additional relevant MeSH terms:
Signs and Symptoms
Nicotinic Acids
Vasodilator Agents
Cardiovascular Agents
Therapeutic Uses
Pharmacologic Actions
Hypolipidemic Agents
Molecular Mechanisms of Pharmacological Action
Lipid Regulating Agents
Vitamin B Complex
Growth Substances
Physiological Effects of Drugs

ClinicalTrials.gov processed this record on April 17, 2014