Sustained-release Madopar HBS compared with standard Madopar in the long-term treatment of de novo parkinsonian patients

Acta Neurol Scand. 1996 Jan;93(1):14-20. doi: 10.1111/j.1600-0404.1996.tb00163.x.


In this Danish-Norwegian randomized double-blind parallel-group multicentre study, we compared the therapeutic response of slow-release Madopar HBS to standard Madopar in 134 de novo patients with idiopathic Parkinson's disease during a 5-year period. The drugs were dosed according to the individual need of the patients. The Webster, NUDS, UPDRS and Hoehn & Yahr scales were used for evaluation of symptoms. Addition of a morning dose of standard Madopar 62.5 mg was allowed after 6 months. Bromocriptine could be administered but not Selegiline. Sixty-five patients got Madopar HBS and 69 standard Madopar. Surprisingly, no differences were found as to the mean daily levodopa dose, the mean number of daily doses or the use of the doses of bromocriptine. Unexpectedly, we found a trend towards a more frequent use of a morning dose of standard Madopar in the group treated with the standard formulation. No differences were observed in the occurrence of motor fluctuations or dyskinesia, the incidence of which was relatively low. Sustained-release Madopar (HBS) thus proved to be as effective as standard Madopar in the long-term treatment of de novo parkinsonian patients, but the drug showed no advantage in postponing or reducing the long-term levodopa treatment problems.

Publication types

  • Clinical Trial
  • Comparative Study
  • Multicenter Study
  • Randomized Controlled Trial

MeSH terms

  • Aged
  • Antiparkinson Agents / administration & dosage*
  • Antiparkinson Agents / adverse effects
  • Benserazide / administration & dosage*
  • Benserazide / adverse effects
  • Delayed-Action Preparations
  • Denmark
  • Dose-Response Relationship, Drug
  • Double-Blind Method
  • Drug Administration Schedule
  • Drug Combinations
  • Female
  • Humans
  • Levodopa / administration & dosage*
  • Levodopa / adverse effects
  • Male
  • Middle Aged
  • Neurologic Examination / drug effects
  • Norway
  • Parkinson Disease / diagnosis
  • Parkinson Disease / drug therapy*


  • Antiparkinson Agents
  • Delayed-Action Preparations
  • Drug Combinations
  • benserazide, levodopa drug combination
  • Levodopa
  • Benserazide