Acquired Thrombotic Thrombocytopenic Purpura After BNT162b2 COVID-19 Vaccine: Case Report and Literature Review.

Thrombotic thrombocytopenic purpura (TTP) is a thrombotic microangiopathy that is deadly if not treated promptly. The treatment of choice in patients presenting with TTP is plasma exchanges. However, immunosuppressive therapy and caplacizumab have significantly improved outcomes in TTP.

Evolution in the real-world therapeutic strategies in more than 20,000 women with breast cancer having received human epidermal growth factor receptor 2-targeted treatments: Results from the french personalized reimbursement model database (2011-2018).

Background: There is a growing need for real-world data on cancer treatments usage, especially to assess compliance with recommendations. We developed a French project using hospital data to analyse evolution in the therapeutic strategies implemented in patients with human epidermal growth factor receptor 2 (HER2)-overexpressed (HER2+) breast cancer (BC) and exposed to injectable HER2-targeted therapies, i.e.

[Castleman's disease: Rapid desensitization for hypersensitivity reaction to rituximab].

Introduction: Rapid desensitization allows secure administration of a drug and is indicated when there is no therapeutic alternative.

Case Report: We report a 49-year-old patient who presented with a hypersensitivity reaction following an infusion of rituximab (375mg/m(2)) in the context of a Castleman's syndrome. After a clinical flare (splenomegaly, adenopathies) despite treatment with tocilizumab, anakinra and valganciclovir, the reintroduction of rituximab was decided, according to the rapid desensitization protocol.

Secondary thrombotic microangiopathy in two patients with Philadelphia-positive hematological malignancies treated with imatinib mesylate.

Drug-mediated thrombotic microangiopathy may cause life-threatening medical emergencies. Novel targeted therapies have dramatically changed the prognosis of a number of oncological diseases. Tyrosine kinase inhibitors of the Breakpoint Cluster Region-Abelson (BCR-ABL) oncoprotein are used in patients with chronic myeloid leukemia or Philadelphia chromosome-positive acute lymphoblastic leukemia.