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Low Dose Oral Imatinib During The Treatment Of Systemic Sclerosis Interstitial Lung Disease

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Low-dose oral imatinib in the treatment of systemic sclerosis interstitial lung disease unresponsive to cyclophosphamide: a phase II pilot study. A clinical trial was performed to verify the effectiveness and tolerability of low-dose imatinibon (Tyrosine kinase inhibitors that may be a therapeutic option for SSc patients) interstitial lung disease in a cohort of SSc patients unresponsive to cyclophosphamide therapy. Due to published clinical trails that were inconclusive about imatinib effectiveness and showed side effects. The trial had thirty consecutive SSc patients with active pulmonary involvement, unresponsive to cyclophosphamide, that were treated with imatinib 200 mg/day for 6 months followed by a 6-month follow-up. The results showed that 26 patients completed the study, with three deaths and one lost to follow-up. Overall, 19 (73.07%) of the patients had improved or stabilized lung disease with the completion of the trial. After the 6-month follow-up period, 12 (54.5%) of the 22 patients showed improved or stabilized lung disease. In conclusion, lung function was stabilized in a large proportion of patients unresponsive to cyclophosphamide therapy and a beneficial outcome emerged from the analysis of HRCT (High resolution computed tomography) lung scans. There was no significant improvement of skin involvement, and the low dose was well tolerated. Therefore, the data provided useful suggestions to design future randomized clinical trials for SSc therapeutics.

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