title: A retrospective randomly selected cohort study of D-penicillamine treatment in rapidly progressive diffuse cutaneous systemic sclerosis of recent onset.
abstract: BACKGROUND
  Several uncontrolled studies in systemic sclerosis have shown that D-penicillamine may cause improvement in skin sclerosis, decrease the rate of new visceral organ involvement, and improve overall survival.
  
  
  OBJECTIVE
  To undertake a single-centre retrospective randomly selected cohort study to examine the effects of D-penicillamine treatment on skin and visceral organ involvement in patients with rapidly progressive systemic sclerosis of recent onset.
  
  
  METHODS
  Eighty-four patients with diffuse cutaneous systemic sclerosis who had received D-penicillamine within 24 months of clinically detectable onset of skin sclerosis were randomly selected from the systemic sclerosis cohort followed at the Scleroderma Center of Thomas Jefferson University. Employing a previously described severity scale, disease severity and skin involvement were compared from initiation of D-penicillamine to end of study and a correlated matched t-test was used to establish statistical significance.
  
  
  RESULTS
  At a mean+/-SD duration of D-penicillamine therapy of 29.2+/-5.5 months and at a median dose of 750 mg per day statistically significant improvement in skin (P<0.01) and cardiac, pulmonary and renal involvement (P<0.05) was observed. At last follow-up, 17 (20%) patients were still receiving D-penicillamine, 25 (30%) had discontinued it owing to disease improvement, and 18 (21%) had discontinued it owing to side-effects.
  
  
  CONCLUSIONS
  In a population of patients with diffuse cutaneous systemic sclerosis, with progressive disease of recent onset, D-penicillamine treatment at a median dose of 750 mg per day caused a statistically significant reduction in skin involvement and improvement of renal, cardiac and pulmonary involvement.
authors.affiliation: Division of Rheumatology, Department of Medicine, Thomas Jefferson University, Philadelphia, PA 19107, USA. Chris.Derk@jeffeson.edu
authors.forename: C T
authors.initials: CT
authors.lastname: Derk
authors.forename: G
authors.initials: G
authors.lastname: Huaman
authors.forename: S A
authors.initials: SA
authors.lastname: Jimenez
mesh_terms: D018501:Antirheumatic Agents / Q000627:therapeutic use*; D015331:Cohort Studies; D004305:Dose-Response Relationship, Drug; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010396:Penicillamine / Q000627:therapeutic use*; D012189:Retrospective Studies; D045743:Scleroderma, Diffuse / Q000188:drug therapy*; D012867:Skin / Q000187:drug effects
chemical_list: D018501:Antirheumatic Agents; D010396:Penicillamine