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Melanoma Margins Trial-II: 1cm v 2cm Wide Surgical Excision Margins for AJCC Stage II Primary Cutaneous Melanoma (MelMarT-II)

This study will determine whether there is a difference in disease free survival for patients treated with either a 1cm excision margin or 2cm margin for clinical stage II (pT2b-pT4b) primary cutaneous melanoma (AJCC 8th edition, Table 1). The…

Grip on knee Osteoarthritis; DIstraction Versus Arthroplasty (GODIVA) for young knee osteoarthritis patients in regular care.

To determine whether KJD is non-inferior on patient reported effectiveness as compared to a KP (i.e. usual care) for relatively young patients with end-stage knee OA. For the substudy: the primary objective is to predict the benefit from knee…

The effectiveness of Cerclage for the reduction of extreme preterm birth and
perinatal mortality in Twin pregnancies with a short cervix.

To assess the effectiveness of a cerclage in women with a twin pregnancy with a midpregnancy short cervix compared to standard treatment (no cerclage) in the prevention of extreme preterm birth (PTB) < 28 weeks of GA.

Study on Prognosis of Acutely Ruptured intracranial Aneurysms

The goal of this study is to investigate which treatment(-s) lead to the best outcome by using existing variation of practice.

TUbectomy with delayed oophorectomy as alternative for risk-reducing salpingo-oophorectomy in BrcA-Women to assess the Safety of Prevention: the TUBA-WISP II study

To evaluate RRS with delayed RRO as an alternative for RRSO in BRCA1/2 gene germline mutation carriers. We hypothesize that RRS with delayed RRO leads to an equal ovarian cancer incidence when compared to RRSO.

Clinical outcomes and cost-effectiveness of a diagnostic and treatment strategy of upfront CTCA plus selective non-invasive functional imaging compared with standard care in patients with chest pain and suspected coronary artery disease

This strategy will result in a reduction reduce the incidence of major adverse cardiovascular events (MACE) defined as death or non-fatal myocardial infarction and appear more efficient than care as usual.

Personalized elective neck irradiation guided by sentinel lymph node biopsy in patients with squamous cell carcinoma of the oropharynx, larynx or hypopharynx with a clinically negative neck: (chemo)radiotherapy to the PRIMary tumor Only. The PRIMO study.

To compare safety and efficacy of treatment with sentinel lymph node biopsy guided elective neck irradiation versus standard elective neck irradiation in patients receiving definitive (chemo)radiotherapy for squamous cell carcinoma of the…