Acalabrutinib (Calquence)

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General information

Class/mechanism: Irreversible inhibitor of Bruton's tyrosine kinase (BTK), which is an enzyme that participates in the B-cell receptor (BCR) signal cascade and cytokine receptor pathways. BCR signaling is believed to promote cell proliferation, adhesion, and survival in B-cell malignancies. Inhibition of BTK interferes with the processes above, as well as B-cell chemotaxis and trafficking. More specific to BTK than the first-generation drug ibrutinib.[1][2][3]
Route: PO
Extravasation: n/a

For conciseness and simplicity, currently will focus on treatment regimens and not list information such as: renal/hepatic dose adjustments, metabolism (including CYP450), excretion, monitoring parameters (although this will be considered for checklists), or manufacturer. Instead, for the most current information, please refer to your preferred pharmacopeias such as Micromedex, Lexicomp, UpToDate (courtesy of Lexicomp), or the prescribing information.[1]

Diseases for which it is established

Patient drug information

History of changes in FDA indication

History of changes in EMA indication

  • 2020-11-05: Initial authorization as Calquence
  • Calquence as monotherapy or in combination with obinutuzumab is indicated for the treatment of adult patients with previously untreated chronic lymphocytic leukaemia (CLL).
  • Calquence as monotherapy is indicated for the treatment of adult patients with chronic lymphocytic leukaemia (CLL) who have received at least one prior therapy.

Also known as

  • Code name: ACP-196
  • Brand name: Calquence