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Published on: February 24, 2023
Viable Pregnancy in a patient with metastatic melanoma treated with double checkpoint immunotherapy
Mauricio Burotto1, Juan G Gormaz1, Suraj Samtani1
1Medical Oncology Service, Clínica Alemana de Santiago, Santiago, Chile.
Abstract:
Metastatic cancers during pregnancy have historically been associated with dismal outcomes, with greater rates of tumor progression in part because of diminished treatment alternatives. Immunotherapy with T-cell checkpoint inhibitors has significantly impacted the survival of several metastatic tumors. However, given their mechanism of action, immune-related adverse events can occur, especially with combined immunotherapy treatments. During pregnancy, checkpoint pathways have a major role, providing immune tolerance to the fetal allograft. Furthermore, evidence suggests that inhibition of this pathway may be associated with an increased risk of miscarriage. We describe, to our knowledge, the first case reported in the literature of a patient 7 weeks pregnant, diagnosed with metastatic melanoma and treated with nivolumab plus ipilimumab. We also present the associated immune-related side effects and their treatment, as well as the oncologic results that lead to favorable pregnancy outcome.
Insights
This study reports the first case of a pregnant patient with metastatic melanoma treated with combined immunotherapy (nivolumab plus ipilimumab). The treatment resulted in a favorable pregnancy outcome despite potential risks associated with immune checkpoint inhibitors during gestation.
Area of Science:
- Oncology
- Immunology
- Maternal-Fetal Medicine
Background:
- Metastatic cancers in pregnancy present treatment challenges due to limited options and historically poor outcomes.
- Immune checkpoint inhibitors (ICIs) have revolutionized metastatic cancer treatment but raise concerns during pregnancy.
- Pregnancy involves immune tolerance mechanisms, and ICI use may interfere, potentially increasing miscarriage risk.
Observation:
- A 7-week pregnant patient diagnosed with metastatic melanoma was treated with nivolumab plus ipilimumab.
- The case details immune-related adverse events and their management.
- The study documents the oncologic and pregnancy outcomes following this novel treatment approach.
Findings:
- Combined immunotherapy with nivolumab and ipilimumab was successfully administered to a pregnant patient with metastatic melanoma.
- Management strategies for immune-related adverse events were effective.
- The treatment led to a favorable oncologic response and a positive pregnancy outcome.
Implications:
- This case suggests that combined immunotherapy may be a viable treatment option for select pregnant patients with metastatic melanoma.
- Further research is warranted to evaluate the safety and efficacy of ICIs in pregnancy.
- Understanding the interplay between ICIs, pregnancy, and immune tolerance is crucial for optimizing patient care.
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