Prinomastat, a hydroxamate-based matrix metalloproteinase inhibitor. A novel pharmacological approach for tissue remodelling-related diseases

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Abstract
Prinomastat (formerly AG3340, Agouron Pharmaceuticals, Inc.) is a potent, selective oral inhibitor of matrix metalloproteinase-2, -9, -13 and -14. This peculiar selectivity should represent an advantage for prinomastat in terms of efficacy/tolerability. The drug has been shown to inhibit tumour growth and angiogenesis in a variety of preclinical models, including cancer of colon, breast, lung and intriguingly in melanoma and glioma models. Moreover, the combination of prinomastat and several chemotherapeutic agents was shown to induce additive effects. The drug is currently in Phase III clinical trials for patients with non-small cell lung cancer in combination with paclitaxel and carboplatin, as well as in advanced hormone refractory prostate cancer in combination with mitoxantrone. The most common side effects are musculoskeletal pain and stiffness. These side effects generally cease with treatment interruption. Finally, considering the pathophysiology of MMPs, Agouron is exploring the utility of prinom...