translate English to French: Drugs are being developed that may alleviate or prevent some of the symptoms of such diseases and over time, these drugs may prove to be of significant clinical benefit with respect to improving survival of those suffering from these diseases.
Des médicaments, en cours d'élaboration, pourraient atténuer certains des symptômes de ces maladies et apporter, à la longue, des avantages cliniques importants sur le plan de la survie des personnes atteintes.