Real-world SCLC data shows neutropenia during chemotherapy paradoxically links to better survival.
Analysis of 421 SCLC patients at Karolinska using Bayesian and competing risk models: neutropenia during first-line treatment associated with better OS (HR 0.70). Higher etoposide dose linked to more AEs. Dose adjustment did not affect OS if patients completed 4 cycles. Male patients had fewer AEs…
Real-world SCLC data shows neutropenia during chemotherapy paradoxically links to better survival.
Analysis of 421 SCLC patients at Karolinska using Bayesian and competing risk models: neutropenia during first-line treatment associated with better OS (HR 0.70). Higher etoposide dose linked to more AEs. Dose adjustment did not affect OS if patients completed 4 cycles. Male patients had fewer AEs and better response than females. High-risk patients with early discontinuation had survival similar to untreated patients.
Key Findings
- Neutropenia during first-line chemo paradoxically associated with better OS (HR 0.70)
- Higher etoposide dose linked to more AEs and neutropenia
- Dose adjustment did not affect OS if 4-cycle regimen was completed
- Male patients had fewer AEs and better treatment response than females
- High-risk patients with early discontinuation had survival similar to no treatment
Implications
SCLC first-line therapy may benefit from individualized dosing. Risk-benefit should be carefully weighed for elderly/poor-performance patients.
Caveats
Retrospective single-center (n=421); abstract-only. Swedish academic center may not represent broader population.
Source: JMIR cancer — 2026-04-10