Progenics Announces Results of Methylnaltrexone Phase 3 Safety Study in Chronic, Non-Malignant Pain Patients

Progenics Pharmaceuticals PGNX today provided analyses of safety and efficacy endpoints from the 1,034-patient, one-year phase 3 safety study of methylnaltrexone bromide subcutaneous injection in non-malignant pain patients with opioid-induced constipation. At a fixed dose of 12 mg, the drug was shown to be generally safe and well tolerated, with a safety profile similar to that from a previously reported, shorter-duration efficacy study in non-malignant pain patients. The results are being presented at the annual meeting of the American Pain Society in Austin, TX, May 19-21, 2011.