title: Changing treatment patterns among patients with HIV: Royal Free Hospital 1987-97.
abstract: OBJECTIVE
  Following the publication of results of large-scale clinical trials, antiretroviral treatment for HIV has changed dramatically. The aim of this study was to describe changes in antiretroviral treatment and the way treatments were combined among 1806 patients with HIV seen at a single centre at the Royal Free Hospital, London, UK.
  
  
  METHODS
  Each calendar year was divided into quarters, and the number of patients receiving treatment and participating in clinical trials was determined.
  
  
  RESULTS
  The proportion of patients on no therapy decreased from over 90% at the beginning of 1988 to under 15% at the end of 1997. Monotherapy was the only form of treatment available before 1992 but its use dropped to 2% by the end of 1997. The standard of care at the end of 1997 was triple combination therapy, used in over 40% of patients. There were dramatic changes in the use of individual agents; use of zidovudine decreased from 50% during 1989 to 25% during 1997, while use of lamivudine and stavudine saw an exponential rise in 1997. The protease inhibitors were used in equal proportions in this clinic population; the use of dual protease therapy began in 1997 and was rising rapidly by the end of the year.
  
  
  CONCLUSIONS
  There have been major changes in the use of antiretroviral therapy at this centre, particularly during 1996 and 1997. The long-term cost implications and side-effects of intensive treatment regimens remain to be addressed.
authors.affiliation: Department of Primary Care and Population Sciences, Royal Free Centre for HIV Medicine, Royal Free and University College Medical School, University College London, Royal Free Campus, Rowland Hill Street, London, UK.
authors.forename: A
authors.initials: A
authors.lastname: Mocroft
authors.forename: C A
authors.initials: CA
authors.lastname: Sabin
authors.forename: M
authors.initials: M
authors.lastname: Youle
authors.forename: L
authors.initials: L
authors.lastname: Swaden
authors.forename: M
authors.initials: M
authors.lastname: Tyrer
authors.forename: D
authors.initials: D
authors.lastname: Wilson
authors.forename: S
authors.initials: S
authors.lastname: Madge
authors.forename: M A
authors.initials: MA
authors.lastname: Johnson
authors.forename: A N
authors.initials: AN
authors.lastname: Phillips
mesh_terms: D000328:Adult; D019380:Anti-HIV Agents / Q000627:therapeutic use*; D002985:Clinical Protocols / Q000592:standards*; D002986:Clinical Trials as Topic; D004359:Drug Therapy, Combination; D005260:Female; D015658:HIV Infections / Q000188:drug therapy*; D006801:Humans; D008131:London; D008297:Male; D008875:Middle Aged; D010818:Practice Patterns, Physicians'; D012189:Retrospective Studies
chemical_list: D019380:Anti-HIV Agents