Summary Chimeric antigen receptor (CAR) T‐cell (CAR‐T) therapy can provide durable remission in patients with relapsed or refractory diffuse large B‐cell lymphoma (DLBCL) after failure of chemoimmunotherapy. However, patients who are refractory or relapsing after CAR‐T therapy have poor outcomes. Multiple mechanisms of CAR‐T therapy failure have been proposed but management of these patients remains a challenge. As CAR‐T therapy moves earlier in the treatment of DLBCL, we urgently need trials focused on patients with relapse after CAR‐T therapy. Recent advances in novel immunotherapies such as bispecific antibodies, antibody–drug conjugates and next‐generation CAR‐T therapies may provide avenues for treatment. Here we review the available data on using these drugs after failure of CAR‐T therapy and provide a framework for the ideal sequencing of these novel agents.

Background: Fast-track worldwide reperfusion programs improve outcomes in ST-elevation myocardial infarction and stroke. Similar programs called Program Evaluation and Review Technique (PERT) focus on submassive and massive pulmonary embolism (PE) excluding deep venous thrombosis (DVT). Methods: PREVENTION-team (Hospital Zambrano Hellion Venous Thromboembolism [VTE] Rapid Response). Primary objective: diagnostics, to improve proximal DVT and submassive and massive PE patients care. Secondary objectives: Increase diagnosis rate of low-risk PE and distal DVT; exploration of cause; long-term anticoagulation; identify high-risk profile for chronic complications; community-based support groups and patient education to extend the concept of the thrombosis-free hospital to thrombosis-free home. Structure and organization: The team includes cardiologists, vascular medicine, angiologist, echocardiographer, cardiovascular imaging, and interventional cardiologists. The team will be accessible 24 h a day, 7 days a week, 365 days a year, and base on previous national experience. The cardiology fellow on call will be responsible for activation and evaluation. We will design several tools to accelerate these processes. Risk stratification and therapeutic approach will be based on clinical presentation, echocardiogram, and biomarkers findings. According to PERT stratification based on resources and medical specialties, Hospital Zambrano Hellion has level 1 PERT. PREVENTION-team links physicians with different expertise, provide fast, efficient, and time-saving treatment, potentially saving lives and reducing bleeding and chronic complications in VTE patients. Finally, establishing a network in our hospital and health system to improve VTE patients care. To the best of our knowledge, this is the first rapid response team focused on VTE in Mexico.

Background: The relationship between pregnancy and breast cancer (BC) risk is not fully understood. Most of the literature has described this interaction in terms of the age at first pregnancy and the number of full-term pregnancies. During the prospective accrual of the “Joven & Fuerte” young women with BC program in Mexico, we identified patients with pregnancy-associated BC (PABC) that experienced a short inter-pregnancy interval (SIPI) (<18 months between a live birth and the beginning of a following pregnancy). To our knowledge, there are no descriptions of the interaction between SIPI and PABC. Objective: We aim to assess the occurrence of SIPI in patients with PABC, as well as describe their clinical features at presentation. Results: We included patients accrued in the “Joven & Fuerte” program from August 2014 and June 2018 at three Mexican cancer centers. A total of 375 patients ≤40 years-old with newly-diagnosed BC were assessed. 37 patients were diagnosed with PABC (10%), 21 during pregnancy and 16 after pregnancy. 6/37 (16%) patients with PABC experienced a SIPI, all diagnosed during pregnancy (28% of 21). The main clinicopathological features are described in the table 1. Table 1.Clinicopathological features of patients with PABC and SIPICaseAge at BC diagnosis (years)IPI (months)Pregnancy trimester at diagnosisStageBC subtype131183rdIIBNot available23262ndIIIAHR neg, HER2 pos337143rdIIAHR neg, HER2 pos436152ndIVHR pos, HER2 neg53142ndIIIAHR pos, HER2 neg63142ndIIICNot available Conclusion: According to the phenomena seen in this cohort of young BC patients, we hypothesize that SIPI may increase the incidence and/or modify the clinical outcomes of PABC. The evidence from clinical and laboratory data suggest that the mechanisms that could alter the interaction include, but are not limited to, the prolongation of the exposure to high concentrations of estrogens or their genotoxic metabolites, interaction with the effect of progesterone and other pregnancy-associated hormones on breast tissue, and immunologic factors. To date, to our knowledge there is no evidence about the effect of SIPI in PABC. Thus, research in this area should be encouraged, particularly in vulnerable women in limited-resource settings, where SIPI is, unfortunately, a common occurrence, and might represent a risk factor for BC/PABC. Citation Format: Diaz-Perez H, Del Toro-Mijares R, Lopez-Martinez EA, Muñoz-Lozano JF, Fonseca A, Platas A, Martinez-Cannon BA, Barragan-Carrillo R, Castro-Carrasco J, Limon-Gomez S, Villarreal-Garza C. Assessment of short inter-pregnancy interval in breast cancer diagnosed during pregnancy [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P4-10-10.

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