Active clinical trials for "Histiocytoma, Malignant Fibrous"

This application proposes a prospective clinical trial to evaluate the impact of adding a focused physical therapy (PT) intervention to the preoperative regimen of individuals diagnosed with a malignancy of the lower extremity (LE). The primary aim will be to determine if individuals diagnosed with a malignancy of the LE can participate in a 10 week preoperative strengthening, stretching, and aerobic exercise regimen.

REGESMOHS (Registro Español de cirugía de Mohs) aims at describing effectiveness of Mohs surgery, and patient, tumor and technique factors related to adverse events and tumor recurrence. REGESMOHS is a prospective cohort, including all patients considered for Mohs surgery in participating centers. All consecutive patients are included. The only exclusion criteria are being under 18-years-old or legally incompetent. Pre-planned follow-up is as required by common clinical practice, but at least once a year for the study period.

Soft tissue sarcomas (STS) are a group of rare mesenchymal neoplasms affecting all ages. STS most commonly present as localised disease but despite surgery and adjuvant treatment more than half of patients will develop recurrent or metastatic disease. Leiomyosarcoma (LMS), a malignancy of smooth muscle, is one of the most common STS and undifferentiated pleomorphic sarcoma (UPS) is a common sarcoma sub-type with aggressive symptoms. Recent studies have demonstrated reasonable sensitivity of LMS to gemcitabine monotherapy with an objective response rate of 8-19%. However the overall survival is still only about 12 months which illustrates the critical clinical need for improved therapies for advanced STS and sarcoma in general. In this study the investigators propose to combine the immune synapse checkpoint inhibitor with the cytotoxic and immune modulating agent, gemcitabine. It is hoped that this dual immunomodulatory approach will enhance the effect of pembrolizumab on PD-L1 expressing LMS and UPS, leading to a safe treatment with patient outcomes. This is a two part, phase I, single centre dose escalation and dose expansion study in the total of 24 patients with newly diagnosed metastatic or inoperable LMS and UPS. There will be approximately 12 patients in the dose escalation cohort (part A) and the starting dose will be a fixed dose rate (FDR) gemcitabine of 800 mg/m2 on day 1 and 8 of 21 days cycles in combination of 200 mg of pembrolizumab given as an infusion on day 1 every 3 weeks. The MTD cohort (part B) will then be expanded to a total of 12 patients in order to further evaluate the safety and tolerability of that dose as well as to preliminarily assess response to therapy. The study is sponsored by Royal Marsden NHS Foundation trust and the funding for the study is provided by Merck Sharp & Dohme Limited.

OBJECTIVES: I. Identify and characterize the gene causing diaphyseal medullary stenosis with malignant fibrous histiocytoma of the bone. II. Determine the clinical manifestations of this disease in these patients.

single institution cases series review of histological and clinical data