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. 1999 Jan 25;1999(1):CD001514. doi: 10.1002/14651858.CD001514

Laihinen 1992.

Methods Randomised, double‐blind cross‐over design. No details of method of randomisation given. 
 Not clear whether intention‐to‐treat analysis. 
 Titration by unblinded clinician. 
 Outcomes assessed by blinded examiner. 
 Duration ‐ variable 4‐8 week titration followed by 4 weeks stable dose; up to 2 weeks wash‐out then 4‐8 week titration with second agonist and 4 week stable dose.
Participants Lisuride arm ‐ 10 patients with no drop‐outs. 
 Bromocriptine arm ‐ 10 patients with no drop‐outs. 
 Patients comparable for sex, age, disease duration, duration of levodopa and disability (Hoehn and Yahr stage) at randomisation.
Interventions Lisuride commenced at 0.05 mg daily, titrated over a maximum of 8 weeks; no maximum given. 
 Mean lisuride dose 1.3 mg/day (range 0.2‐2.4 mg/day). 
 Bromocriptine commenced at 1.25 mg daily, titrated over a maximum of 8 weeks; no maximum given. 
 Mean bromocriptine dose 15 mg/day (range 3.75‐30 mg/day). 
 No change in levodopa dose allowed.
Outcomes Columbia University Rating Scale at 0, 1, 2, 4, 6, 8, 12 weeks. 
 Unique 4 point clinician's global rating scale of 'fluctuations' (0 ‐ no change; 1 ‐ minimal improvement; 2‐ moderate improvement; 3 ‐ marked improvement). 
 Adverse events.
Notes  
Risk of bias
Bias Authors' judgement Support for judgement
Allocation concealment? Unclear risk B ‐ Unclear