Pharmacotherapy in Acutely Anemic Jehovah's Witnesses: An Evidence-Based Review.
To determine the pharmacological treatment methods available to anemic Jehovah's Witnesses (JW). MEDLINE and PubMed were searched from inception through February 2018 using the search terms Jehovah's Witnesses, treatment, erythropoietin, hemoglobin-based oxygen carrier, Sanguinate, Hemopure, bleeding, and anemia. All clinical trials, cohort studies, case-control studies, and observational trials involving pharmacotherapy in anemic JW patients were evaluated. Case reports and bibliographies were also analyzed for inclusion. Two studies involving the use of erythropoietin (EPO) and one study involving recombinant factor VIIa were included. Information was also included from other pharmacotherapeutic modalities that had case report data only. Current published evidence is limited with regard to evidence-based management of JW patients. High-dose EPO, intravenous iron supplementation, and hemostatic agents have demonstrated good clinical outcomes in case reports. EPO doses as high as 40 000 units daily have been advocated by some experts; however, pharmacokinetic studies do not support dose-dependent effects. Hemoglobin-based oxygen carriers (HBOCs) are currently not Food and Drug Administration approved. They are available through expanded access programs and may represent a lifesaving modality in the setting of severe anemia. There are currently not enough data to make definitive recommendations on the use of pharmacological agents to treat severe anemia in the JW population. Further evidence utilizing EPO and HBOCs will be beneficial to guide therapy.