Background Cushing’s syndrome (CS) is associated with an hypercoagulable state and an increased risk of venous thromboembolism (VTE). Evidence-based guidelines on thromboprophylaxis strategies in patients with CS are currently lacking. We aimed to map the current clinical practice for thromboprophylaxis management in patients with CS across reference centers (RCs) of the European Reference Network on Rare Endocrine Conditions (Endo-ERN), which are endorsed specifically for the diagnosis and treatment of CS. Using the EU survey tool, a primary screening survey, and subsequently a secondary, more in-depth survey were developed. Results The majority of the RCs provided thromboprophylaxis to patients with CS (n = 23/25), although only one center had a standardized thromboprophylaxis protocol (n = 1/23). RCs most frequently started thromboprophylaxis from CS diagnosis onwards (n = 11/23), and the majority stopped thromboprophylaxis based on individual patient characteristics, rather than standardized treatment duration (n = 15/23). Factors influencing the initiation of thromboprophylaxis were ‘medical history of VTE’ (n = 15/23) and ‘severity of hypercortisolism’ (n = 15/23). Low-Molecular-Weight-Heparin was selected as the first-choice anticoagulant drug for thromboprophylaxis by all RCs (n = 23/23). Postoperatively, the majority of RCs reported ‘severe immobilization’ as an indication to start thromboprophylaxis in patients with CS (n = 15/25). Most RCs (n = 19/25) did not provide standardized testing for variables of hemostasis in the postoperative care of CS. Furthermore, the majority of the RCs provided preoperative medical treatment to patients with CS (n = 23/25). About half of these RCs (n = 12/23) took a previous VTE into account when starting preoperative medical treatment, and about two-thirds (n = 15/23) included ‘reduction of VTE risk’ as a goal of treatment. Conclusions There is a large practice variation regarding thromboprophylaxis management and perioperative medical treatment in patients with CS, even in Endo-ERN RCs. Randomized controlled trials are needed to establish the optimal prophylactic anticoagulant regimen, carefully balancing the increased risk of (perioperative) bleeding, and the presence of additional risk factors for thrombosis.
TPS5633 Background: The molecular class of endometrial cancer (EC) is both prognostic and predictive in high-risk EC (HREC). The TransPORTEC research consortium showed that patients with MMRd HREC did not benefit from adjuvant chemotherapy added to radiotherapy. MMRd tumors are particularly sensitive to immunotherapy. We hypothesize that adjuvant durvalumab added to standard radiotherapy will increase recurrence-free survival (RFS) in patients with MMRd HREC. Methods: MMRd-GREEN is an international, open-label, randomized phase III trial and part of the RAINBO program (NCT05255653). Eligible patients will be allocated (1:1) to adjuvant durvalumab 1500 mg once every 4 weeks for 1 year combined with radiotherapy or standard radiotherapy alone. The primary endpoint is RFS at 3 years. Secondary endpoints are pelvic, vaginal and distant RFS, EC-specific survival, overall survival, treatment-related toxicity, health-related quality of life and exploratory translational research . Main inclusion criteria include histologically confirmed stage IB/II with (substantial) lymph-vascular space invasion (LVSI) or stage IIIA-C MMRd EC, after hysterectomy and bilateral salpingo-oophorectomy (regardless of lymphadenectomy or sentinel lymph node biopsy) without macroscopic residual disease. Molecular classification must be performed according to the WHO 2020 algorithm. The target accrual is 316 patients, accounting for a total drop-out rate of 12%. This sample size yields 80% power to detect a 13% increase in the 3-year RFS (hazard ratio 0.58) as a result of the addition of durvalumab, with an accrual duration of 48 months and follow-up period of 30 months. No interim analysis is planned; an independent data monitoring committee will routinely monitor recurrences and adverse events. Enrollment: Since August 2022, the trial is open for recruitment in the Netherlands and per February 10th 2023, the first 3 patients have been enrolled. Activation of more international centers is ongoing. Clinical trial information: NCT05255653 .
the calculated predictive probability values were significantly different between the LNM-positive and -negative groups (P = 1.39 × 10 -10 ), and high diagnostic accuracy of 83.6% area under the curve (AUC) was obtained. The LNM diagnosis requires essentially minimize the time difference between the diagnosis and hysterectomy. Therefore, reverse transcriptionpolymerase chain reaction enabled quantification from RNA in one step within 30 min, for intraoperative diagnosis. Conclusion This diagnostic method uses rapid nucleic acid amplification for intraoperative quantification of biomarkers in the primary tissue. Furthermore, the predictive model combined with various clinical variables can be used to discriminate LNM with high accuracy and facilitate individualization of the surgical treatment.
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