Efficacy of short-term monotherapy with maraviroc, a new CCR5 antagonist, in patients infected with HIV-1

Nat Med. 2005 Nov;11(11):1170-2. doi: 10.1038/nm1319. Epub 2005 Oct 5.

Abstract

We assessed the efficacy and safety of 10-d monotherapy with the orally administered CCR5 antagonist maraviroc in 63 HIV-1-positive individuals prescreened for the absence of CXCR4-using virus. Maximum reduction in viral load occurred at a median of 10-15 d, with a mean reduction of >or=1.6 log(10) copies/ml at all twice daily doses >or=100 mg. These results provide proof of concept that CCR5 antagonism is a viable antiretroviral therapeutic approach.

MeSH terms

  • Anti-HIV Agents / administration & dosage*
  • Anti-HIV Agents / adverse effects
  • Anti-HIV Agents / therapeutic use
  • Area Under Curve
  • CCR5 Receptor Antagonists*
  • Clinical Trials, Phase II as Topic*
  • Cyclohexanes / antagonists & inhibitors
  • Cyclohexanes / therapeutic use
  • Dose-Response Relationship, Drug
  • HIV Infections / blood
  • HIV Infections / drug therapy*
  • HIV Infections / virology
  • HIV-1 / drug effects*
  • Humans
  • Maraviroc
  • RNA, Viral / blood
  • Randomized Controlled Trials as Topic*
  • Time Factors
  • Treatment Outcome
  • Triazoles / antagonists & inhibitors
  • Triazoles / therapeutic use
  • Viral Load / statistics & numerical data

Substances

  • Anti-HIV Agents
  • CCR5 Receptor Antagonists
  • Cyclohexanes
  • RNA, Viral
  • Triazoles
  • Maraviroc