Treatment Delay and Cancer Progression
Treatment timing can matter in cancer care, but the impact of a delay depends on the cancer type, stage, symptoms, and planned treatment.
Some delays are medically acceptable. Others may affect outcomes or narrow the treatment options available. A systematic review and meta-analysis published in BMJ found that a four-week delay was associated with increased mortality across several cancer treatment indications.
Whether waiting is medically acceptable should be discussed with the treating team.
Waiting may require closer medical review when:
- The disease is progressing or symptoms are worsening
- The cancer is recurrent or locally advanced
- Treatment options are already limited
- The planned treatment is time-sensitive, or eligibility could change with further delay
Patients may wish to ask:
- How long is it medically reasonable to wait?
- Could waiting change the treatment plan or affect eligibility for the recommended treatment?
- What are the next steps if treatment cannot begin within that period?
If treatment is delayed, an additional hospital review may help clarify whether another clinically appropriate option is available.
APIS coordinates communication with Korean hospitals for international case reviews. The reviewing hospitals and physicians determine treatment eligibility and make medical decisions.
Source: Hanna TP et al., BMJ, 2020. Mortality due to cancer treatment delay: systematic review and meta-analysis.
