Adapting radiation therapy to immunotherapy: Delineation and treatment planning of pre-operative immune-modulating breast iSBRT in 151 patients treated in the randomized phase II Neo-CheckRay trial.

Background And Purpose: The randomized multicentric phase II Neo-CheckRay trial investigated preoperative immune-modulating stereotactic body radiation therapy (iSBRT) 8 Gy x 3 fractions in combination with chemotherapy with or without the anti PD-L1 durvalumab and the anti-CD73 oleclumab in early-stage, high-risk, luminal B breast cancer. iSBRT was solely delivered to the primary breast cancer leveraging on its immune modulating potential to sustain an anti-tumour response. To avoid immunosuppression induced by radiation therapy (RT), the tumour draining lymph nodes (TDLN) were spared.

Relationship between additional mutations at diagnosis and treatment response in patients with essential thrombocythemia.

Patients with essential thrombocythemia (ET) have a chronic evolution with a risk of hematological transformation associated with a dismal outcome. Since patients with resistance or intolerance have an adverse prognosis, it is important to identify which patient will respond to first-line treatment. We therefore aim to describe the association between additional mutations and response to first-line treatment in patients with ET.

Ketogenic diet enhances the anti-cancer effects of PD-L1 blockade in renal cell carcinoma.

Introduction: Clear cell renal cell carcinoma (ccRCC) is characterized by a predominant metabolic reprogramming triggering energy production by anaerobic glycolysis at the expense of oxydative phosphorylation. Ketogenic diet (KD), which consists of high fat and low carbohydrate intake, could bring required energy substrates to healthy cells while depriving tumor cells of glucose. Our objective was to evaluate the effect of KD on renal cancer cell tumor metabolism and growth proliferation.

[Surgical and pathological consequences of preoperative immunotherapy in onco-urology].

Introduction: Patients treated with immunotherapy might need surgical procedures in addition to the medical treatment. The main indications are cytoreductive nephrectomy, cystectomy (as part of clinical trials) and metastasis removal in some oligometastatic patients. This study aims to assess the feasibility of surgery for patients treated by immunotherapy and describes the histological modifications found in the pathological analysis.