Clinical Trials

Anacetrapib (MK-0859) has been evaluated across multiple clinical trials focusing on atherosclerotic cardiovascular disease, dyslipidemia, hypercholesterolemia, and familial hypercholesterolemia. Spanning Phase 1 pharmacokinetic evaluations in hepatic or renal impairment, Phase 2 dose-ranging, and Phase 3 outcome studies, these trials involved commercial and academic sponsors including Merck Sharp & Dohme LLC, the University of Oxford, and Cambridge University Hospitals NHS Foundation Trust. Recruitment statuses are predominantly completed or active and not recruiting, alongside select terminated protocols.

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT01252953 ACTIVE_NOT_RECRUITING
Atherosclerotic Cardiovascular Disease
University of Oxford
2011-06 PHASE3
NCT01860729 COMPLETED
Hypercholesterolemia
Merck Sharp & Dohme LLC
2013-05-13 PHASE3
NCT01760460 COMPLETED
Dyslipidemia
Merck Sharp & Dohme LLC
2013-03-14 PHASE3
NCT01717300 COMPLETED
Hypercholesterolemia
Merck Sharp & Dohme LLC
2012-11-06 PHASE3
NCT01841684 TERMINATED
Hyperlipoproteinemia Type II; Homozygous Familial Hypercholesterolemia
Merck Sharp & Dohme LLC
2013-06 PHASE3
NCT01824238 COMPLETED
Heterozygous Familial Hypercholesterolemia (HeFH)
Merck Sharp & Dohme LLC
2013-05 PHASE3
NCT01524289 COMPLETED
Hyperlipoproteinemia Type II; Hypercholesterolemia, Familial
Merck Sharp & Dohme LLC
2012-02-03 PHASE3
NCT00990808 COMPLETED
Dyslipidemia
Merck Sharp & Dohme LLC
2009-11 PHASE1
NCT01122667 COMPLETED
Dyslipidemia
Merck Sharp & Dohme LLC
2010-06 PHASE1
NCT01114490 COMPLETED
Dyslipidemia
Merck Sharp & Dohme LLC
2010-05 PHASE1
NCT01122667 Completed
Dyslipidemia
Merck Sharp & Dohme LLC
2010-06 Phase 1
NCT01114490 Completed
Dyslipidemia
Merck Sharp & Dohme LLC
2010-05 Phase 1
NCT00977288 COMPLETED
Dyslipidemia
Merck Sharp & Dohme LLC
2009-09 PHASE2
NCT00685776 COMPLETED
Coronary Heart Disease (CHD); CHD Risk-Equivalent Disease
Merck Sharp & Dohme LLC
2008-03-24 PHASE3
NCT00325455 TERMINATED
Hypercholesterolemia; Mixed Hyperlipemia
Merck Sharp & Dohme LLC
2006-06 PHASE2
NCT00565006 COMPLETED
Ambulatory Blood Pressure
Merck Sharp & Dohme LLC
2006-07 PHASE1
NCT00565292 COMPLETED
Hypercholesterolemia; Hyperlipidemia
Merck Sharp & Dohme LLC
2006-07 PHASE1
NCT00325455 Terminated
Hypercholesterolemia|Mixed Hyperlipemia
Merck Sharp & Dohme LLC
2006-06 Phase 2

(data from https://clinicaltrials.gov, updated on 2024-06-25)

Check the Anacetrapib (MK-0859) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Compliance for Clinical Use

Mechanism and Biochemical Profile

Anacetrapib (MK-0859) acts as a potent, selective, and reversible inhibitor of recombinant human cholesteryl ester transfer protein (rhCETP, IC50 = 7.9 nM) and mutant CETP(C13S, IC50 = 11.8 nM), which blocks the transfer of cholesteryl esters and triglycerides between high-density and low-density lipoprotein fractions. By suppressing CETP-mediated lipid exchange and promoting macrophage reverse cholesterol transport, Anacetrapib increases plasma high-density lipoprotein cholesterol while decreasing low-density lipoprotein cholesterol, directly targeting the atherogenic lipid profile characteristic of hypercholesterolemia and atherosclerotic cardiovascular disease evaluated in clinical trials.

Appendix RUO and cGMP Quality Standards

Quality Dimension RUO (Research Use Only) cGMP (Current Good Manufacturing Practice)
Clinical Applicability Prohibited in human clinical trials or medical diagnostics. Mandatory for human clinical trials (Phase I–III) and therapies.
Regulatory Status Non-regulated grade; exempt from drug manufacturing laws. Legally enforced by health authorities (e.g., FDA, EMA, NMPA).
Facility Environment Unclassified analytical or research laboratories. Validated Cleanrooms (ISO Class 5–8) with continuous monitoring.
Quality Control Basic purity and activity testing. Rigorous safety release testing (Sterility, Endotoxin, Mycoplasma).
Process Validation Basic equipment calibration; no process validation required. Full qualification (IQ/OQ/PQ) and complete batch records.
Quality Assurance Vendor self-declared without required formal QMS. Mandatory QA/QC unit, Change Control, CAPA, and vendor audits.
Regulatory Impact High risk of IND rejection if used as a critical raw material. Required for IND/NDA filings, supported by Drug Master Files (DMF).

Footnotes

Regulatory Note: Governed by FDA (21 CFR Parts 210/211/312), EMA (EudraLex Vol 4), ICH Guidelines (E6/Q7/Q9/Q10), and compendial standards (USP <71>/<85>/<1043>).

Note: Technical data last updated: Sep 1, 2026.