The development of agents that modulate the actions of IL-6 and those of other pro-inflammatory mediators of bone loss may provide alternative osteoporosis management strategies for patients with RA than existing general osteoporosis therapies.
On the basis of efficacy, safety and cost, leflunomide should be considered in patients with RA who have failed first-line DMARD drug therapy. In refractory cases, leflunomide may be used in combination with, for example, methotrexate before biological agents. Therapy should be initiated by a specialist, but repeat prescribing in general practice on a shared care basis is acceptable using agreed protocols. Clear mechanisms are required to monitor toxicity, with good communication between the patient and rheumatologist to manage nuisance side-effects and avoid unnecessary discontinuation of leflunomide.
Rates of prescriptions to prevent osteoporosis in a cohort of older men with rheumatoid arthritis on chronic glucocorticoids were low. Gastrointestinal disorders and drugs and disorders potentially linked to osteoporosis are associated with diminished odds of being prescribed GIO-preventing medications.
Twelve patients with rheumatoid arthritis treated for at least 12 months with methotrexate and 11 matched rheumatoid arthritis controls underwent a standard d-xylose absorption test. No patients had any pre-existing clinical of biochemical evidence of malabsorption. No significant difference was observed in the 1 hour plasma d-xylose estimation between methotrexate treated patients and controls. The 2 to 5 hour urinary excretion ratio, however, was significantly lower in the methotrexate-treated group compared with controls indicating a minor degree of malabsorption. Six of the methotrexate treated patients and 5 of the controls underwent endoscopic duodenal biopsy but neither group demonstrated any significant histological changes. In conclusion, methotrexate therapy in patients with rheumatoid arthritis produces mild intestinal malabsorption.
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