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Intravenous cyclophosphamide therapy for systemic sclerosis. A single-center experience and review of the literature with pooled analysis of lung function test results.

Abstract：

OBJECTIVE:Oral cyclophosphamide (CYC) is a promising therapy for Systemic Sclerosis (SSc)-related interstitial lung disease (ILD). The use of intravenous (i.v.) pulses has been considered as an alternative route of drug administration, possibly associated with reduced toxicity. Our objectives were to re-evaluate our experience with i.v. CYC, to review the literature, and to pool our results with those available from other groups, improving the statistical power of the analysis. METHODS:1) Retrospective analysis of our center experience on 16 patients with SSc and active alveolitis, treated with i.v. CYC 750 mg + 6-methylprednisolone 125 mg every 3 weeks. 2) Pooled analysis of papers published in peer-reviewed journals reporting detailed data on each patient treated with i.v. CYC. The end-point was modification in the results of lung function tests (LFT) after 6 months. Piecewise regression analysis was performed using a linear mixed-effects model adjusted for baseline values to evaluate the changes in LFT. RESULTS:Retrospective analysis. In the period before therapy there was a significant deterioration in FVC (in 6 months: -4.3%; p=0.0009) and DLCO (-2.1%; p=0.018). After 6 months of treatment there was a modest improvement in the FVC (+2.7% p=0.08) and DLCO (+2.2%; p=0.08). Pooled analysis. In 53 evaluable patients, the improvement in LFT reached conventional statistical significance (FVC: +2.85%; 95% confidence intervals: +0.04, +5.66%; p=0.04. DLCO: +4.4%; 95% confidence intervals: +1.2%, +7.5%; p<0.001). CONCLUSION:i.v. CYC for 6 months can achieve a small, but significant improvement of LFT in patients with SSc and active alveolitis.

journal_name

Clin Exp Rheumatol

journal_title

Clinical and experimental rheumatology

authors

Airò P,Danieli E,Parrinello G,Antonioli CM,Cavazzana I,Toniati P,Franceschini F,Cattaneo R

keywords:

subject

Has Abstract

pub_date

2004-09-01 00:00:00

pages

573-8

issue

eissn

0392-856X

issn

1593-098X

journal_volume

pub_type

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Intravenous cyclophosphamide therapy for systemic sclerosis. A single-center experience and review of the literature with pooled analysis of lung function test results.