His main fields of clinical and basic research include immunoadsorption and desensitization protocols in the setting of ABO and/or HLA incompatible kidney transplantation with living donor, viral infections in dialysis and in organ transplant patients, particularly hepatitis C virus infection in dialysis and transplant patients; cytomegalovirus infection and disease after kidney and liver transplants; hepatitis E after organ transplantation; anemia after kidney transplantation and after liver transplantation; the pharmacodynamic effects of immunosuppressants. He has authored or co-authored more than 440 original articles. Professor Rostaing is a member of several professional and scientific organizations including the French Society of Nephrology, the International Society of Nephrology, the European Society of Nephrology, Dialysis, and Transplantation, the European Society of Transplantation, the European society of Artificial Organs, the American Society of Nephrology, and the American Society of Transplantation.