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Abstract Introduction Enteropathy‐associated T‐cell lymphoma (EATL) is a peripheral T‐cell lymphoma (PTCL) with a poor prognosis. Cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) with or without etoposide consolidated by autologous stem cell transplantation (ASCT) are recommended for fit PTCL patients. The role of etoposide and ASCT in EATL is unclear. Methods This study reports the incidence, treatment, and outcome of EATL patients using the Netherlands Cancer Registry, with nationwide coverage of >95%. Results All patients diagnosed in 1989–2021 (n = 351, 77% treated) were identified (median age 67 years, 56% male, 50% limited stage). Time period analysis assessed trends in primary therapy and overall survival (OS). Treatment included chemotherapy (CT) (34%), surgery (18%), surgery and CT (19%) or CT followed by ASCT (7%). The 5‐year OS for treated patients with limited versus advanced stage was 19% and 9% respectively. The 2‐year OS improved over time (21%–33%, p = 0.06). Surgery only (hazard ratio [HR] 2.16; 95% confidence interval [CI] 1.55–3.01, p

Abstract Chronic lymphocytic leukemia (CLL) manifests heterogeneously with varying outcomes. This population‐based study examined causes of death (CODs), as registered by the physician who established the death, among 20,588 CLL patients diagnosed in the Netherlands between 1996 and 2020. Utilizing cause‐specific flexible parametric survival models, we estimated cause‐specific hazard ratios (HRs) and cumulative incidences of death due to CLL, solid malignancies, other hematological malignancies, infections, and other causes. Our findings reveal CLL as the predominant COD, contributing to around 40% of relative mortality, with a declining 5‐year death probability from 16.8% in 1996–2002 to 7.6% in 2010–2020. Also, deaths attributed to solid malignancies, other hematological malignancies, and other COD diminished over time, as evidenced by respective HRs (95% confidence interval) of 0.68 (0.60%–0.77%), 0.45 (0.38%–0.53%), and 0.77 (0.66%–0.90%). In summary, our comprehensive, population‐based analysis underscores a noticeable reduction in CLL‐attributed deaths and other competing causes over the studied period. Nonetheless, CLL is registered as the most prevalent cause of mortality among contemporary diagnosed patients with CLL, emphasizing the continued relevance of CLL‐centric clinical strategies and research.

Key Clinical Message The prognosis of patients with relapsed or refractory (R/R) BL is poor with limited response to salvage therapy, especially for patients with early relapse (

Abstract Studies on conditional relative survival (CRS) in chronic lymphocytic leukaemia (CLL) have hitherto been lacking in the literature. We predicted up‐to‐date estimates of 5‐year RS at diagnosis and for each additional year survived (i.e., CRS) up to 15 years post‐diagnosis among CLL patients diagnosed during 2007–2020. We showed that 5‐year CRS continues to decline gradually with each additional year survived in a contemporary era with access to novel‐based agents, irrespective of age. This finding indicates that CLL patients continue to experience substantial excess mortality compared to an age‐ and sex‐matched group from the general population.

Abstract We assessed the impact of a prior malignancy diagnosis (PMD) – as a potential proxy for genetic cancer susceptibility – on the development of a second primary malignancy (SPM) and mortality in follicular lymphoma (FL) patients. From the nationwide Netherlands Cancer Registry, we selected all adult FL patients diagnosed in 1994‐2012 (n = 8028) and PMDs and SPMs relative to FL, with follow‐up until 2017. We constructed two Fine and Gray models – with death as a competing risk – to assess the association between a PMD and SPM incidence. A PMD was associated with an increased incidence of SPMs (subdistribution hazard ratio [SHR], 1.30; 95% confidence interval [CI], 1.03‐1.64) – especially carcinomas of the respiratory tract (SHR, 1.83; 95% CI, 1.10‐3.05) and cutaneous squamous cell carcinomas (SHR, 1.58; 95% CI, 1.01‐2.45) – and a higher risk of mortality in a multivariable model (HR, 1.43; 95% CI, 1.19‐1.71). However, when additionally adjusted for the receipt of systemic therapy and/or radiotherapy before FL diagnosis, only patients who received such therapies had an increased incidence of SPMs (SHR, 1.40; 95% CI, 1.02‐1.93). In conclusion, patients with a PMD had a higher rate of SPMs and mortality than those without a PMD, which might have resulted from therapy‐related carcinogenesis.