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Efficacy and safety of mycophenolate mofetil in the treatment of rheumatic disease-related interstitial lung disease: a narrative review.

ABSTRACT: Mycophenolate mofetil (MMF) is an antimetabolite with a potent inhibitory effect on proliferation of T and B lymphocytes used since the early 1990s for the prevention of acute allograft rejection after organ transplant. MMF is also widely used for the treatment of a variety of rheumatic diseases (RDs) and their pulmonary involvement. Interstitial lung disease (ILD) is a heterogeneous group of progressive fibrotic diseases of the lung, which is often secondary to RD and represents a major cause of morbidity and mortality. MMF is considered the main alternative to cyclophosphamide as a first-line agent to treat RD-related ILD or as possible maintenance therapy after cyclophosphamide, with a lower rate of side-effects. However, as for other immunosuppressive agents, the use of MMF in RD-ILD is supported by poor scientific evidence. In this narrative review, we describe the available data and recent advances on the effectiveness and safety of MMF for the treatment of ILD related to RD, including rheumatoid arthritis, systemic sclerosis, primary Sjögren syndrome, systemic lupus erythematosus, idiopathic inflammatory myopathies, undifferentiated connective tissue disease, interstitial pneumonia with autoimmune features and antineutrophil cytoplasmic antibody-associated vasculitis.

SUBMITTER: Cassone G

PROVIDER: S-EPMC7813435 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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Efficacy and safety of mycophenolate mofetil in the treatment of rheumatic disease-related interstitial lung disease: a narrative review.

Cassone Giulia G Sebastiani Marco M Vacchi Caterina C Erre Gian Luca GL Salvarani Carlo C Manfredi Andreina A

Drugs in context 20210115

Mycophenolate mofetil (MMF) is an antimetabolite with a potent inhibitory effect on proliferation of T and B lymphocytes used since the early 1990s for the prevention of acute allograft rejection after organ transplant. MMF is also widely used for the treatment of a variety of rheumatic diseases (RDs) and their pulmonary involvement. Interstitial lung disease (ILD) is a heterogeneous group of progressive fibrotic diseases of the lung, which is often secondary to RD and represents a major cause o ...[more]

PMID: 33505480

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Project description:ObjectiveTo compare mycophenolate mofetil (MMF) with placebo for the treatment of systemic sclerosis (SSc)-related interstitial lung disease (ILD).MethodsWe included participants enrolled in the placebo arm of Scleroderma Lung Study (SLS) I and the MMF arm of SLS II. SLS I randomized participants to receive either oral cyclophosphamide (CYC) or placebo for 1 year, while SLS II randomized participants to receive either MMF for 2 years or oral CYC for 1 year followed by 1 year of placebo. Eligibility criteria for SLS I and SLS II were nearly identical. The primary outcome was % predicted forced vital capacity (FVC), and key secondary outcomes included % predicted diffusing capacity for carbon monoxide (DLco), the modified Rodnan skin thickness score (MRSS), and dyspnea. Joint models were created to evaluate the treatment effect on the course of these outcomes over 2 years.ResultsAt baseline, the MMF-treated group in SLS II (n = 69) and the placebo-treated group in SLS I (n = 79) had similar percentages of men and women and similar disease duration, SSc subtype, extent of skin disease, and % predicted FVC. MMF-treated patients in SLS II were slightly older (mean ± SD age 52.6 ± 9.7 years versus 48.1 ± 12.4 years; P = 0.0152) and had higher % predicted DLco (mean ± SD 54.0 ± 11.1 versus 46.2 ± 13.3; P = 0.0002) than placebo-treated patients in SLS I. After adjustment for baseline disease severity, treatment with MMF in comparison with placebo was associated with improved % predicted FVC (P < 0.0001), % predicted DLco (P < 0.0001), MRSS (P < 0.0001), and dyspnea (P = 0.0112) over 2 years.ConclusionAlthough there are inherent limitations in comparing participants from different trials, treatment with MMF was associated with improvements in physiologic outcomes and dyspnea compared with placebo, even after accounting for baseline disease severity. These results further substantiate the use of MMF for the treatment of SSc-related ILD.

Project description:12 months of oral cyclophosphamide has been shown to alter the progression of scleroderma-related interstitial lung disease when compared with placebo. However, toxicity was a concern and without continued treatment the efficacy disappeared by 24 months. We hypothesised that a 2 year course of mycophenolate mofetil would be safer, better tolerated, and produce longer lasting improvements than cyclophosphamide.This randomised, double-blind, parallel group trial enrolled patients from 14 US medical centres with scleroderma-related interstitial lung disease meeting defined dyspnoea, pulmonary function, and high-resolution CT (HRCT) criteria. The data coordinating centre at the University of California, Los Angeles (UCLA, CA, USA), randomly assigned patients using a double-blind, double-dummy, centre-blocked design to receive either mycophenolate mofetil (target dose 1500 mg twice daily) for 24 months or oral cyclophosphamide (target dose 2·0 mg/kg per day) for 12 months followed by placebo for 12 months. Drugs were given in matching 250 mg gel capsules. The primary endpoint, change in forced vital capacity as a percentage of the predicted normal value (FVC %) over the course of 24 months, was assessed in a modified intention-to-treat analysis using an inferential joint model combining a mixed-effects model for longitudinal outcomes and a survival model to handle non-ignorable missing data. The study was registered with ClinicalTrials.gov, number NCT00883129.Between Sept 28, 2009, and Jan 14, 2013, 142 patients were randomly assigned to either mycophenolate mofetil (n=69) or cyclophosphamide (n=73). 126 patients (mycophenolate mofetil [n=63] and cyclophosphamide [n=63]) with acceptable baseline HRCT studies and at least one outcome measure were included in the primary analysis. The adjusted % predicted FVC improved from baseline to 24 months by 2·19 in the mycophenolate mofetil group (95% CI 0·53-3·84) and 2·88 in the cyclophosphamide group (1·19-4·58). The course of the % FVC did not differ significantly between the two treatment groups based on the prespecified primary analysis using a joint model (p=0·24), indicating that the trial was negative for the primary endpoint. However, in a post-hoc analysis of the primary endpoint, the within-treatment change from baseline to 24 months derived from the joint model showed that the % FVC improved significantly in both the mycophenolate mofetil and cyclophosphamide groups. 16 (11%) patients died (five [7%] mycophenolate mofetil and 11 [15%] cyclophosphamide), with most due to progressive interstitial lung disease. Leucopenia (30 patients vs four patients) and thrombocytopenia (four vs zero) occurred more often in patients given cyclophosphamide than mycophenolate mofetil. Fewer patients on mycophenolate mofetil than on cyclophosphamide prematurely withdrew from study drug (20 vs 32) or met prespecified criteria for treatment failure (zero vs two). The time to stopping treatment was shorter in the cyclophosphamide group (p=0·019).Treatment of scleroderma-related interstitial lung disease with mycophenolate mofetil for 2 years or cyclophosphamide for 1 year both resulted in significant improvements in prespecified measures of lung function over the 2 year course of the study. Although mycophenolate mofetil was better tolerated and associated with less toxicity, the hypothesis that it would have greater efficacy at 24 months than cyclophosphamide was not confirmed. These findings support the potential clinical effectiveness of both cyclophosphamide and mycophenolate mofetil for progressive scleroderma-related interstitial lung disease, and the present preference for mycophenolate mofetil because of its better tolerability and toxicity profile.National Heart, Lung and Blood Institute, National Institutes of Health; with drug supply provided by Hoffmann-La Roche and Genentech.

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Efficacy and safety of mycophenolate mofetil in the treatment of rheumatic disease-related interstitial lung disease: a narrative review.

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Efficacy and safety of mycophenolate mofetil in the treatment of rheumatic disease-related interstitial lung disease: a narrative review.

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