What is the role of avatrombopag in the treatment of immune thrombocytopenia (ITP)?

Updated: Jan 11, 2020
  • Author: Craig M Kessler, MD, MACP; Chief Editor: Srikanth Nagalla, MBBS, MS, FACP  more...
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Avatrombopag, an oral TPO receptor agonist, was approved by the FDA in June 2019 for adults with chronic ITP who have had an insufficient response to a previous treatment. Results from a phase III randomized trial that supported the approval showed avatrombopag administration resulted in a platelet count of at least 50,000/µL at day eight of therapy in the majority of patients, with efficacy superior to placebo in maintaining platelet counts in the target range during the 6-month treatment period. [69]

Unlike romiplostim, which must be taken on an empty stomach, avatrombopag can be taken with food; unlike eltrombopag, it has not been associated with hepatotoxicity.

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