US drug developer CombinatoRx has reported disappointing data from a mid-stage trial of Synavive (dipyridamole) in knee osteoarthritis.
While there was a trend in favor of the anti-inflammatory drug, as well as an observed dose-response relationship, the combination of the drug plus prednisolone did not show statistical significance compared to placebo for question one of the Western Ontario and McMaster Universities osteoarthritis index, which measures pain while walking on a flat surface, nor when compared to prednisolone alone. Analyses of the full dataset remain ongoing.
"The results contain some observations that are difficult to reconcile, and we intend to complete additional analysis of the data in order to further our understanding of Synavive's biology and determine appropriate next steps," said company chief executive Alexis Borisy.
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