Treatment for Erosive Changes in CPPD Disease

First-Line Treatments

The European League Against Rheumatism recommends using NSAIDs as initial therapy for chronic CPP crystal inflammatory arthritis with erosive changes, though evidence is extrapolated from gout and OA management, always combining with gastroprotective agents in high-risk patients or for long-term use 2
Low-dose colchicine (0.5 mg twice daily) has demonstrated efficacy in a double-blind, placebo-controlled RCT for knee OA with persistent inflammation caused by CPPD, with an NNT of 2 (95% CI 1 to 4) at 4 months for pain reduction >30% 2, 3
Joint aspiration with intra-articular corticosteroid injection provides rapid relief for affected joints with significant inflammation 4

Methotrexate (5-10 mg/week) should be considered for patients with erosive CPPD who are resistant to first-line treatments, with an uncontrolled trial showing excellent clinical response in all treated patients with significant decrease in pain intensity and joint swelling/tenderness 2, 3
Hydroxychloroquine demonstrated efficacy in a 6-month double-blind, placebo-controlled RCT with an NNT of 2 (95% CI 1 to 7) for clinical response (>30% reduction in swollen/tender joint count) 2, 3
Low-dose oral glucocorticoids may be used for chronic inflammatory arthritis with CPPD when other treatments fail, though evidence is based primarily on expert opinion 2

Intra-articular radiocolloid (yttrium-90) injection showed significant improvement for pain (NNT=2, 95% CI 1 to 3) and global response in one small double-blind, placebo-controlled RCT for knee OA with CPPD, though not routinely recommended 2, 3

The American College of Rheumatology recommends treating underlying metabolic conditions that may predispose to CPPD, such as hyperparathyroidism, hemochromatosis, or hypomagnesemia 3
Applying standard OA management principles including education, physical therapy, and joint protection strategies is recommended 1, 2

Avoid intra-articular high molecular weight hyaluronan as it might induce acute attacks in patients with CPPD 2
Carefully consider comorbidities and age when selecting treatments, as CPPD predominantly affects older patients who may have contraindications to certain medications 4, 5
Monitor for side effects of long-term treatments, particularly with NSAIDs, colchicine, and methotrexate 2, 6