VANCOUVER, British Columbia--(BUSINESS WIRE)--March 28, 2006--Protiva, a Clear Leader in the Field of siRNA Delivery, Challenges Inex and Sirna to Stop Thwarting Progress in the Development of Novel Drugs. Protiva Biotherapeutics announced today it has filed two lawsuits to protect its right to continue advancing the research and development of delivery technologies that are crucial to a new class of drugs that could help prevent and treat a wide variety of diseases.
