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Duration of immunotherapy - should we continue ad infinitum?
Annabel Smith1, Gohar Shaghayegh2, Alexander M Menzies3
1Queen Elizabeth Hospital, Adelaide, South Australia, Australia.
Determining the ideal length of cancer immunotherapy is unclear. Emerging data suggest durable responses after stopping treatment, particularly for melanoma and non-small cell lung cancer patients.
Area of Science:
- Oncology
- Immunotherapy
- Cancer Treatment
Background:
- The optimal duration for cancer immunotherapy remains an open question in clinical practice.
- Maturing survival data from early immunotherapy trials are providing insights into long-term efficacy.
- Understanding response durability post-treatment is crucial for optimizing patient care.
Purpose of the Study:
- To discuss the appropriate duration of immunotherapy for patients with melanoma.
- To comment on immunotherapy treatment duration in non-small cell lung cancer.
- To offer clinical guidance supporting the discontinuation of immunotherapy when appropriate.
Main Methods:
- Review of survival data from completed immunotherapy clinical trials.
- Analysis of response durability in patients with melanoma and non-small cell lung cancer.
- Expert commentary and synthesis of evidence to inform practice guidance.
Main Results:
- Evidence suggests that durable responses can be achieved after immunotherapy discontinuation in select cancer types.
- Specific survival data indicate potential for long-term benefit post-cessation of treatment.
- The findings support a re-evaluation of fixed treatment durations.
Conclusions:
- Immunotherapy treatment duration requires careful consideration based on emerging survival data.
- Discontinuation of immunotherapy may be a viable strategy for some melanoma and non-small cell lung cancer patients.
- Practice guidance is needed to support informed decisions regarding treatment cessation.
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