Active clinical trials for "Osteopetrosis"

This is a clinical trial of bone marrow transplantation for patients with the diagnosis of a genetic disease of blood cells that do not have an HLA-matched sibling donor. Genetic diseases of blood cell include: Red blood cell defects e.g. hemoglobinopathies (sickle cell disease and thalassemia), Blackfan-Diamond anemia and congenital or chronic hemolytic anemias; White blood cells defects/immune deficiencies e.g. chronic granulomatous disease, Wiskott-Aldrich syndrome,Osteopetrosis, Kostmann's syndrome (congenital neutropenia), Hereditary Lymphohistiocytosis (HLH); Platelets defects e.g.Congenital amegakaryocytic thrombocytopenia; Metabolic/storage disorders e.g. leukodystrophies,mucopolysaccharidoses as Hurler disease;Stem cell defects e.g.reticular agenesis, among many other rare similar conditions. The study treatment plan uses a new transplant treatment regimen that aims to try to decrease the acute toxicities and complications associated with the standard treatment plans and to improve outcome The blood stem cells will be derived from either unrelated donor or unrelated umbilical cord blood.

This study is an open label use of ACTIMMUNE for patients with Autosomal Dominant Osteopetrosis Type 2(ADO2). Effects of treatment will be evaluated after 14 weeks on ACTIMMUNE by bone resorption markers. This study will treat 12 patients with ADO2 recruited from Indiana University and Riley Hospital for Children at Indiana University Health.

OBJECTIVES: I. Compare the rate of treatment failure in osteopetrosis patients receiving interferon gamma in combination with calcitriol to the rate of treatment failure in patients receiving calcitriol alone. II. Compare the number of adverse events or clinical manifestations of disease progression occurring in these patients. III. Assess the effects of interferon gamma on hematopoiesis, cranial nerve function, and rate of infection in these patients.

Reduced intensity conditioning followed by allogeneic stem cell transplantation will result in mixed/complete donor chimerism and potentially alter the natural history and outcome of patients with non-malignant diseases.

The purpose of this study is to evaluate the efficacy and side effects of donor hematopoietic cells using chemotherapy regimen without total-body irradiation in children undergoing a hematopoietic stem cell transplant for Malignant infantile osteopetrosis. The blood stem cells will be derived from either related donor or unrelated umbilical cord blood or haploidentical donor.

The purpose of this study is to establish a registry of all children with severe, malignant osteopetrosis who are treated with Actimmune (IFN-g 1b or Interferon gamma-1b) to monitor the effects of IFN-g 1b on preventing progression of this disease and to follow the safety of patients receiving it on a long-term basis. In addition, evaluation of the possible effect of Actimmune therapy on the humoral response to normal childhood vaccinations in this same patient population will be examined.Interferon gamma is a substance that the body makes naturally.

The aim of the study is to describe patients with a high bone mass phenotype due to a mutation in the low density lipoprotein l receptor 5 gene (LRP5) and compare them with age and sex matched controls. Moreover, bone density and microarchitecture as well as markers of bone metabolism are evaluated

This protocol provides expanded access to bone marrow transplants for children who lack a histocompatible (tissue matched) stem cell or bone marrow donor when an alternative donor (unrelated donor or half-matched related donor) is available to donate. In this procedure, some of the blood forming cells (the stem cells) are collected from the blood of a partially human leukocyte antigen (HLA) matched (haploidentical) donor and are transplanted into the patient (the recipient) after administration of a "conditioning regimen". A conditioning regimen consists of chemotherapy and sometimes radiation to the entire body (total body irradiation, or TBI), which is meant to destroy the cancer cells and suppress the recipient's immune system to allow the transplanted cells to take (grow). A major problem after a transplant from an alternative donor is increased risk of Graft-versus-Host Disease (GVHD), which occurs when donor T cells (white blood cells that are involved with the body's immune response) attack other tissues or organs like the skin, liver and intestines of the transplant recipient. In this study, stem cells that are obtained from a partially-matched donor will be highly purified using the investigational CliniMACS® stem cell selection device in an effort to achieve specific T cell target values. The primary aim of the study is to help improve overall survival with haploidentical stem cell transplant in a high risk patient population by limiting the complication of GVHD.