| Methods |
Random allocation (exact method and concealment not stated) |
| Participants |
Psoriatic arthritis (DIP involvement/seronegative polyarthritis with psoriasis/arthrosis mutilans with psoriasis)
Multicentre recruitment
16 treatment/21 placebo
Corticosteroids not permitted |
| Interventions |
Oral methotrexate 7.5‐15 mg/wk versus identical placebo |
| Outcomes |
Tender joint count, joint swelling, physician assessment, grip strength, laboratory measures
duration 12 weeks |
| Notes |
4 variables were included after discussion with the authors
11% dropout rate |
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Allocation concealment (selection bias) |
Unclear risk |
B ‐ Unclear |
