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CompletedNCT00376584Updated Feb 16, 2017

Effect of an Investigational Compound on Tolerability of Extended Release Niacin (0524A-023)(COMPLETED)

A Phase 3 interventional study of MK-0524A and ER Niacin in Hypercholesteremia and Hyperlipidemia, sponsored by Merck Sharp & Dohme LLC. Completed. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2017-02-16.

Sponsored by Merck Sharp & Dohme LLC · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
825
Allocation
Randomized
Ages
18 Years to 70 Years
Sex
All
01

Study summary

This is a 12-week clinical trial in lipid clinic patients for whom niacin therapy is appropriate to evaluate the efficacy of MK0524 to improve the tolerability of extended-release niacin. There will be 6 scheduled clinic visits and 3 treatment arms.

02

Conditions studied

  • Hypercholesteremia
  • Hyperlipidemia

Keywords

  • Primary Hypercholesteremia
  • Mixed Hyperlipidemia
03

In context

Hyperlipidemias

821 studies on the registry are indexed under Hyperlipidemias; 105 are open to participants now.

This study's enrollment of 825 is above the median of 87 across 691 interventional studies indexed under Hyperlipidemias.

Browse Hyperlipidemias studies →

Lead sponsor

Merck Sharp & Dohme LLC is the lead sponsor of 2,114 studies on the registry; 133 are open to participants now.

Of its 489 completed or terminated interventional studies of FDA-regulated products, 362 (74%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patient is appropriate candidate for niacin therapy
  • Patients with evidence of ischemic cardiovascular disease must be on a statin and have LDL-C \<130 mg/dL at V1
  • Patients with diabetes mellitus and no evidence of ischemic cardiovascular disease must have LDL-C \<130 mg/dL at V1
  • Non-diabetic patients with 2 or more risk factors for coronary heart disease and no ischemic cardiovascular disease must have LDL-C \<160 mg/dL at V1
  • Patient has TG \<500 mg/dL (5.65 mmol/L) at V1
  • A patients historic serum or plasma lipid values measured within 6 months from Visit 1 may be used to meet lipid inclusion criteria
  • ALL OTHER PATIENTS DO NOT REQUIRE SPECIFIC LIPID ENTRY CRITERIA

Exclusion criteria

Exclusion Criteria:

  • Patients with unstable doses of medications
  • Pregnant or lactating women, or women intending to become pregnant are excluded
  • Patients with diabetes mellitus that is poorly controlled, unstable or newly diagnosed
  • Patients with: chronic heart failure, uncontrolled/unstable cardiac arrhythmias, unstable hypertension, active or chronic hepatobiliary disorder or hepatic disease, HIV positive, gout (within 1 year)
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
825 participants (actual)

Study arms

  • Placebo comparator
    Placebo → MK-0524A 2g

    Following an 8-week active run-in (MK-0524A 1g (4 Weeks) then MK-0524A 2g (4 weeks) participants will be administered MK-0524A Placebo for 5 days (drug holiday) followed by MK-0524A 2 g for the remainder of the study (7 days).

    Drug: MK-0524A · Drug: Placebo

  • Active comparator
    Placebo → Extended Release (ER)-Niacin 2g

    Following an 8-week active run-in (MK-0524A 1g (4 Weeks) then MK-0524A 2g (4 weeks) participants will be administered MK-0524A Placebo for 5 days (drug holiday) followed by ER-Niacin 2g for the remainder of the study (7 days)

    Drug: ER Niacin · Drug: Placebo

  • Experimental
    MK-0524A 2g

    Following an 8-week active run-in (MK-0524A 1g (4 Weeks) then MK-0524A 2g (4 weeks) participants will be administered MK-0524A 2g for the remainder of the study (approximately 2 weeks).

    Drug: MK-0524A

Interventions

  • DrugMK-0524A
  • DrugER Niacin
  • DrugPlacebo
06

What researchers measure

Primary outcomes

  1. Global Flushing Severity Score (GFSS) during 7 days of treatment

    Time frame: during 7 days of treatment

Secondary outcomes

  1. Percentage of Participants Who Experience at Least 1 Adverse Event

    Time frame: up to 10 weeks

  2. Percentage of Participants Who Were Discontinued from the Study Due to an Adverse Event

    Time frame: up to 10 weeks

07

Study locations

No study locations are listed for this record.

08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 16, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00376584
Lead sponsor
Merck Sharp & Dohme LLC
Responsible party
Sponsor
First posted
Sep 15, 2006
Start date
Jul 2006
Primary completion
Jan 2007
Completion
Jan 2007
Last update
Feb 16, 2017

Study contacts

Medical Monitor
study director · Merck Sharp & Dohme LLC
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Feb 2017. You cannot join it, but the record below documents what was studied.

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