Metastatic Breast Cancer Treatment After Abemaciclib-Related Liver Injury — Case 2

This breast cancer diagnosis at a glance

Stage at diagnosis
Stage IV
Sex
female
Treatment
hormone therapy and targeted therapy
Outcome
Care Ongoing

Treatment course, step by step

  1. She started letrozole with abemaciclib.
  2. Abemaciclib was stopped after severe liver injury on day 27.
  3. Endocrine therapy was changed from letrozole to fulvestrant.
  4. After liver recovery, she switched to palbociclib without recurrent liver dysfunction.

What happened, in summary

A 71-year-old woman with metastatic breast cancer started letrozole and abemaciclib. On day 27, her ALT rose to 380 IU/L. Abemaciclib was discontinued, and the ALT level fell by about half over the next month. Her endocrine treatment was also changed from letrozole to fulvestrant. Abemaciclib was not reintroduced. After liver recovery, she began palbociclib, allowing CDK4/6 inhibitor therapy to continue. Her ALT remained stable after the change, with no recurrence of the severe liver dysfunction. The switch allowed her treatment plan to continue while avoiding another episode of severe liver injury.

Where this story comes from

This is a lay summary of an account first published by PMC / PubMed Central. Read the original in full

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