Platelet storage pool deficiency
MONDO:0008495Platelet storage pool deficiency refers to a group of conditions that are caused by problems with the platelet granules. Platelet granules are tiny storage sacs found within the platelets which release various substances to help stop bleeding. Platelet storage pool deficiencies occur when platelet granules are absent, reduced in number, or unable to empty their contents into the bloodstream. The signs and symptoms include frequent nosebleeds; abnormally heavy or prolonged menstruation ; easy bruising; recurrent anemia ; and abnormal bleeding after surgery, dental work or childbirth. Platelet storage pool deficiencies may be genetic or acquired (non-genetic). They can also be part of an inherited genetic syndrome such as Hermansky-Pudlak syndrome, Chediak-Higashi syndrome, thrombocytopenia-absent radius (TAR) syndrome, and Wiskott-Aldrich syndrome. Treatment is symptomatic.
Also known as: alpha dense granule deficiency, combined alpha-delta platelet storage pool deficiency, alpha delta granule deficiency, platelet storage pool diseases, storage pool platelet disease
40 clinical trials for this condition and its sub-types.
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New CAR-T therapy targets antibodies blocking Life-Saving transplants
Disease control Not yet recruitingThis early-stage study tests a new treatment using special immune cells (CAR-T cells) designed to reduce harmful antibodies that can prevent or damage bone marrow transplants. About 18 people with blood diseases who have these antibodies will receive the cells in increasing doses…
Phase: PHASE1, PHASE2 • Sponsor: Chang Yingjun • Aim: Disease control
Last updated Jun 27, 2026 09:10 UTC
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Could a feeding tube after transplant save the gut?
Disease control Not yet recruitingThis study tests whether starting tube feeding right after a stem cell transplant can reduce severe gut graft-versus-host disease (GVHD) in people with blood cancers or disorders. About 112 participants will be randomly assigned to either standard care or early tube feeding. The …
Phase: PHASE2 • Sponsor: University of Nebraska • Aim: Disease control
Last updated Jun 27, 2026 08:09 UTC