Journal
DRUGS OF TODAY
Volume 58, Issue 3, Pages 133-145Publisher
PROUS SCIENCE, SAU-THOMSON REUTERS
DOI: 10.1358/dot.2022.58.3.3367994
Keywords
Romiplostim; Nplate; Acute radiation syndrome; Thrombopoietin receptor agonists; Thrombocytopenic agents; Radiation injury; Radiation countermeasures; Animal models; Animal Rule
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Funding
- Uniformed Services University of the Health Sciences/Armed Forces Radiobiology Research Institute [RBB211037]
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This article introduces the emergency situation when a nuclear accident or terrorist attack occurs in populated areas, focusing on the treatment of acute radiation syndrome. It specifically discusses the latest FDA-approved drug, romiplostim, as a treatment modality.
Detonation of an improvised nuclear weapon, or a radiological dispersal device by terrorists, or an unintended radiological/nuclear accident in populated areas would result in a mass casualty scenario with radiation exposures of different severities. Such inci dences are perceived as national security threats of major consequence. Acute radiation syndrome (ARS) is triggered by an exposure to a high dose of penetrating ionizing radiation during a short time window. In humans, moderate exposure to 2 to 4 Gy of ionizing radiation results in clinically manageable hematopoietic ARS (H-ARS), characterized by severe depletion of vital blood cells and bone marrow progenitors. Since 2015, the United States Food and Drug Administration (U.S. FDA) has approved four radiation medical countermeasures for H-ARS following the Animal Rule; namely, Neupogen, Neulasta, Leukine and Nplate (romiplostim). Here, we briefly present the treatment modalities for H-ARS. We have discussed the latest FDA-approved agent, romiplostim, as a treatment modality for H-ARS. The nature of this agent and the preclinical and clinical work that preceded its FDA approval as a radiation medical countermeasure are discussed, as are the development and use of related thrombopoietic agents for the treatment of radiation exposed victims.
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