title: Comparison of hospitalization rates in patients with community-acquired pneumonia treated with telithromycin for 5 or 7 days or clarithromycin for 10 days.
abstract: OBJECTIVE
  To compare the impact on hospitalization rates and the clinical efficacy of oral telithromycin and clarithromycin treatment in patients with community-acquired pneumonia (CAP).
  
  
  METHODS
  A total of 581 patients with CAP were enrolled in this randomized, double-blind, parallel group, multinational study, of whom 575 were evaluated for healthcare resource utilization from a payer perspective (intent to treat [ITT] population). Patients received telithromycin 800 mg once daily for 5 (n = 193) or 7 (n = 195)days, or clarithromycin 500 mg once daily for 10 days (n = 187). The primary efficacy endpoint was clinical outcome at test of cure (Days 17-24) in the per-protocol population. Frequency of CAP-related hospitalizations, physician visits/tests/procedures, and additional respiratory tract infection-related antibacterial use were compared by treatment group (ITT) up to late post- for clarithromycin vs dollars 37930 (difference: -26446; therapy (Days 31-36). Study investigators blinded to treatment assessed whether hospital admissions were CAP-related or not. CAP-related hospitalization costs (USdollars) for telithromycin and clarithromycin were compared.
  
  
  RESULTS
  Clinical cure rates were similar in patients who received clarithromycin for 10 days and telithromycin for 5 or 7 days: 91.8% (134/146), 89.3% (142/159), and 88.8% (143/161), respectively, and both 5- and 7-day telithromycin were statistically equivalent to clarithromycin (difference: -2.5 and -3.0%, respectively; 95% CI: -9.7, 4.7 and -10.2, 4.3, respectively). There were 7 CAP-related hospital admissions among clarithromycin patients vs 3 (p = 0.283) and 1 (p = 0.021) admissions among 5- and 7-day telithromycin patients, respectively. The number of hospital days/100 patients was 40.1 for clarithromycin vs 17.1 and 7.2 for 5- and 7-day telithromycin, respectively. Projected hospitalization costs/100 patients were dollars 86205 95% CI: -66 654; 13 762) and dollars 16 091 (difference: -37 847; 95% CI: -77953; 2259) for 5- and 7-day telithromycin, respectively.
  
  
  CONCLUSIONS
  Data from this study demonstrate that telithromycin 800 mg once daily for 5 or 7 days with fewer hospital days and potentially lower is an effective treatment for CAP,and that telithromycin treatment of CAP may be associated hospitalization costs than clarithromycin treatment.
authors.affiliation: Zoom International Clinical Research Group, St Jerome, PQ, Canada. zoominternational.tellier@qc.aira.com
authors.forename: Guy
authors.initials: G
authors.lastname: Tellier
authors.forename: Joanne R
authors.initials: JR
authors.lastname: Chang
authors.forename: Carl V
authors.initials: CV
authors.lastname: Asche
authors.forename: Bruce
authors.initials: B
authors.lastname: Lavin
authors.forename: John
authors.initials: J
authors.lastname: Stewart
authors.forename: Sean D
authors.initials: SD
authors.lastname: Sullivan
mesh_terms: D000284:Administration, Oral; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000900:Anti-Bacterial Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D017291:Clarithromycin / Q000008:administration & dosage / Q000627:therapeutic use*; D017714:Community-Acquired Infections / Q000188:drug therapy*; D004311:Double-Blind Method; D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data*; D006801:Humans; D048628:Ketolides; D018942:Macrolides / Q000008:administration & dosage / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D011014:Pneumonia / Q000188:drug therapy*; D016896:Treatment Outcome
chemical_list: D000900:Anti-Bacterial Agents; D048628:Ketolides; D018942:Macrolides; D017291:Clarithromycin; C106791:telithromycin