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Thalidomide, Cyclophosphamide and Dexamethasone for Recurrent/Refractory Adult Langerhans Cell Histiocytosis

2019-10-15 11:11:11 | BioPortfolio

Summary

Langerhans cell histiocytosis (LCH) is a rare, heterogeneous histiocytic disorder occurring most commonly in children. Because of the rarity of LCH in adults and a lack of prospective randomized trials, the treatment strategy for adults is mostly based on pediatric protocols. The overall response rate of therapy based on vinblastine plus prednisone in adults is lower than in children and the treatment tends to show higher toxicity.There is little data to guide therapy after frontline treatment. In a phase 2 trial, thalidomide as monotherapy gave a 70% response rate in recurrent/refractory low risk LCH but there were no responses in six high risk children. We want to analyze the efficacy and toxicity of thalidomide combined with dexamethasone and cyclophosphamide regimens in the treatment of recurrent/refractory LCH among adult patients at our hospital.

Study Design

Conditions

Langerhans Cell Histiocytosis

Intervention

thalidomide combined with dexamethasone and cyclophosphamide

Location

Peking Union Medical College Hospital
Beijing
China

Status

Recruiting

Source

Peking Union Medical College Hospital

Results (where available)

View Results

Links

Published on BioPortfolio: 2019-10-15T11:11:11-0400

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Medical and Biotech [MESH] Definitions

General term for the abnormal appearance of histiocytes in the blood. Based on the pathological features of the cells involved rather than on clinical findings, the histiocytic diseases are subdivided into three groups: HISTIOCYTOSIS, LANGERHANS CELL; HISTIOCYTOSIS, NON-LANGERHANS-CELL; and HISTIOCYTIC DISORDERS, MALIGNANT.

A rare form of non-Langerhans-cell histiocytosis (HISTIOCYTOSIS, NON-LANGERHANS-CELL) with onset in middle age. The systemic disease is characterized by infiltration of lipid-laden macrophages, multinucleated giant cells, an inflammatory infiltrate of lymphocytes and histiocytes in the bone marrow, and a generalized sclerosis of the long bones.

A group of disorders resulting from the abnormal proliferation of and tissue infiltration by LANGERHANS CELLS which can be detected by their characteristic Birbeck granules (X bodies), or by monoclonal antibody staining for their surface CD1 ANTIGENS. Langerhans-cell granulomatosis can involve a single organ, or can be a systemic disorder.

Rare malignant neoplasm of dendritic LANGERHANS CELLS exhibiting atypical cytology, frequent mitoses, and aggressive clinical behavior. They can be distinguished from other histiocytic and dendritic proliferations by immunohistochemical and ultrastructure studies. Cytologically benign proliferations of Langerhans cells are called LANGERHANS CELL HISTIOCYTOSIS.

Group of disorders which feature accumulations of active HISTIOCYTES and LYMPHOCYTES, but where the histiocytes are not LANGERHANS CELLS. The group includes HEMOPHAGOCYTIC LYMPHOHISTIOCYTOSIS; SINUS HISTIOCYTOSIS; xanthogranuloma; reticulohistiocytoma; JUVENILE XANTHOGRANULOMA; xanthoma disseminatum; as well as the lipid storage diseases (SEA-BLUE HISTIOCYTE SYNDROME; and NIEMANN-PICK DISEASES).

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