Evidence map›Paper›PMID 14739125›Full record

Trial reportArteriosclerosis, thrombosis, and vascular biology2004

Raising high-density lipoprotein in humans through inhibition of cholesteryl ester transfer protein: an initial multidose study of torcetrapib.

Ronald W Clark, Tamara A Sutfin, Roger B Ruggeri, Ann T Willauer, Eliot D Sugarman, George Magnus-Aryitey, Patricia G Cosgrove, Thomas M Sand, Ronald T Wester, John A Williams and 2 more

Open access · bronzeAbstract readClinical TrialClinical Trial, Phase IComparative Study
PubMed Publisher
In one paragraph

Trial report in Arteriosclerosis, thrombosis, and vascular biology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed, 2 pooled it
56.2field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

62 citing papers in PubMed, 2 syntheses or guidelines pooled it, 371 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Trial
  6. Trial
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. CETP Inhibition: Past Failures and Future Hopes.Clinical Medicine Insights. Cardiology · 2016
    Review
  13. Article
  14. Treating low high-density lipoprotein cholesterol: what is the evidence?Therapeutic advances in endocrinology and metabolism · 2014
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

2 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 1 institution in 1 country.

Ronald W ClarkDepartment of Cardiovascular and Metabolic Diseases, Pfizer Global Research and Development, Groton, Conn 06340, USA. ronald_w_clark@groton.pfizer.com
Tamara A Sutfin
Roger B Ruggeri
Ann T Willauer
Eliot D Sugarman
George Magnus-Aryitey
Patricia G Cosgrove
Thomas M Sand
Ronald T Wester
John A Williams
Michael E Perlman
Mark J Bamberger
Pfizer (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe ability of the potent cholesteryl ester transfer protein (CETP) inhibitor torcetrapib (CP-529,414) to raise high-density lipoprotein cholesterol (HDL-C) levels in healthy young subjects was tested in this initial phase 1 multidose study. METHODS AND

resultsFive groups of 8 subjects each were randomized to placebo (n=2) or torcetrapib (n=6) at 10, 30, 60, and 120 mg daily and 120 mg twice daily for 14 days. Torcetrapib was well tolerated, with all treated subjects completing the study. The correlation of plasma drug levels with inhibition (EC50=43 nM) was as expected based on in vitro potency (IC50 approximately 50 nM), and increases in CETP mass were consistent with the proposed mechanism of inhibition. CETP inhibition increased with escalating dose, leading to elevations of HDL-C of 16% to 91%. Total plasma cholesterol did not change significantly because of a reduction in nonHDL-C, including a 21% to 42% lowering of low-density lipoprotein cholesterol at the higher doses. Apolipoprotein A-I and E were elevated 27% and 66%, respectively, and apoB was reduced 26% with 120 mg twice daily. Cholesteryl ester content decreased and triglyceride increased in the nonHDL plasma fraction, with contrasting changes occurring in HDL.

conclusionsThese effects of CETP inhibition resemble those observed in partial CETP deficiency. This work serves as a prelude to further studies in subjects with low HDL, or combinations of dyslipidemia, in assessing the role of CETP in atherosclerosis.

Indexed as

AdolescentAdultApolipoproteinsCarrier ProteinsCholesterol Ester Transfer ProteinsCholesterol, HDLDose-Response Relationship, DrugDrug Administration ScheduleEnzyme InhibitorsFemaleGlycoproteinsHumansLipidsLipoproteinsLipoproteins, HDLMaleApolipoproteinsCarrier ProteinsCETP protein, humanCholesterol Ester Transfer ProteinsCholesterol, HDLEnzyme InhibitorsGlycoproteinsLipidsLipoproteinsLipoproteins, HDLQuinolinestorcetrapib

Identifiers

PMID14739125
OpenAlexW2102768269

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.