From the U.S. Food and Drug Administration:
The FDA has recently become aware of reports of establishments in several states that are offering infusions of plasma from young donors to purportedly treat the effects of a variety of conditions. The conditions range from normal aging and memory loss to serious diseases like dementia, Parkinson's disease, multiple sclerosis, Alzheimer's disease, heart disease or post-traumatic stress disorder. We have significant public health concerns about the promotion and use of plasma for these purposes. There is no proven clinical benefit of infusion of plasma from young donors to cure, mitigate, treat, or prevent these conditions, and there are risks associated with the use of any plasma product.
Today, we're alerting consumers and health care providers that treatments using plasma from young donors have not gone through the rigorous testing that the FDA normally requires in order to confirm the therapeutic benefit of a product and to ensure its safety. As a result, the reported uses of these products should not be assumed to be safe or effective. We strongly discourage consumers from pursing this therapy outside of clinical trials under appropriate institutional review board and regulatory oversight.
Plasma is the liquid portion of the blood. It contains proteins that help clot blood and can be used for the management of bleeding and clotting abnormalities. The benefits of plasma have long been recognized, especially in trauma settings or in patients whose blood is unable to clot due to medications or certain illnesses. The FDA-recognized Circular of Information for the Use of Human Blood and Blood Components, published by AABB, lists recognized indications for which the administration of plasma is safe and effective; these are included in the FDA's safety communication. For those patients receiving a plasma product for a recognized use, the benefits of treatment have been determined by the agency to outweigh its risks. But even under such recognized uses, plasma administration is not without risks. The more common risks are allergic reactions and transfusion associated circulatory overload and less common risks include transfusion related acute lung injury or transfusion associated circulatory overload and infectious disease transmission...