? ? This is a five-year renewal application for the Thalassemia Clinical Research Network (TCRN). TCRN's mission is to accelerate research in the management of thalassemia. Syndromes encompassed by this mission include the ? thalassemias: homozygous or compound heterozygous plus Hemoglobin E/? thalassemia; and the alpha thalassemias: homozygous, hemoglobin H disease, and HbH/Constant Spring. The network is composed of four core U.S. sites, a data coordinating center, several large affiliated clinical sites in the U.S., Canada, and England, and several smaller regional """"""""satellite"""""""" sites to the core centers, in a cooperative agreement with NHLBI. Key strengths of the TCRN include a demonstrated ability of the investigators and sites cooperatively to standardize patient assessment and care; to design, implement and conduct clinical trials with observational, interventional, and ancillary designs. The multicenter network has been crucial due to sample size considerations. A pivotal accomplishment of the initial grant period is the establishment and analysis of the TCRN Registry, from which subjects for trials are identified. The registry now includes over 800 patients from 22 sites, including ?-thalassemia major (n=422), ? -thal intermedia (n=121), Hb E/ ? thal (n=103), transfusion-dependent a-thal major (n=9), HbH disease (n=l 05), and HbH/Constant Spring (n=44).
The Specific Aims of the renewal grant are: (I) To perform interventional clinical trials in key areas of thalassemia care. Two trials are proposed. First, a randomized, controlled trial to examine the effect of deferoxamine alone v. deferoxamine plus deferriprone, on cardiac disease due to transfusional iron overload. Second, a randomized trial of arginine v. placebo for pulmonary hypertension, an important problem in thalassemia intermedia and other hemolytic states. (II) To provide an infrastructure for development, launch, and prompt completion of small, innovative trials in thalassemia. (Ill) To improve assessment of phenotype and clinical outcomes in thalassemia, in order to facilitate current and future clinical trials. This will be accomplished by two studies. The Thalassemia Longitudinal Cohort study, as well as a detailed study of iron-related organ damage, comparing measures of iron burden in the heart, liver and pancreas, to outcomes of iron-related organ dysfunction. Combined with the proposed clinical trials and the ability to perform detailed genotype/phenotype correlations, these improved phenotype and outcome measures are powerful tools to enhance knowledge about thalassemia clinical care, as envisioned by the NIH's 2003 Director's Roadmap. ? ?

Agency
National Institute of Health (NIH)
Institute
National Heart, Lung, and Blood Institute (NHLBI)
Type
Research Project--Cooperative Agreements (U01)
Project #
2U01HL065244-06
Application #
6965067
Study Section
Special Emphasis Panel (ZHL1-CSR-C (M2))
Program Officer
Moore, Robert Blaine
Project Start
2000-07-01
Project End
2010-06-30
Budget Start
2005-08-05
Budget End
2006-06-30
Support Year
6
Fiscal Year
2005
Total Cost
$215,874
Indirect Cost
Name
Weill Medical College of Cornell University
Department
Pediatrics
Type
Schools of Medicine
DUNS #
060217502
City
New York
State
NY
Country
United States
Zip Code
10065
Morris, Claudia R; Kim, Hae-Young; Klings, Elizabeth S et al. (2015) Dysregulated arginine metabolism and cardiopulmonary dysfunction in patients with thalassaemia. Br J Haematol 169:887-98
Tubman, Venée N; Fung, Ellen B; Vogiatzi, Maria et al. (2015) Guidelines for the Standard Monitoring of Patients With Thalassemia: Report of the Thalassemia Longitudinal Cohort. J Pediatr Hematol Oncol 37:e162-9
Trachtenberg, Felicia L; Gerstenberger, Eric; Xu, Yan et al. (2014) Relationship among chelator adherence, change in chelators, and quality of life in thalassemia. Qual Life Res 23:2277-88
Green, Sage T; Martin, Marie B; Haines, Dru et al. (2014) Variance of pain prevalence and associated severity during the transfusion cycle of adult thalassaemia patients. Br J Haematol 166:797-800
Grady, Robert W; Galanello, Renzo; Randolph, Rachel E et al. (2013) Toward optimizing the use of deferasirox: potential benefits of combined use with deferoxamine. Haematologica 98:129-35
Porter, John B; Wood, John; Olivieri, Nancy et al. (2013) Treatment of heart failure in adults with thalassemia major: response in patients randomised to deferoxamine with or without deferiprone. J Cardiovasc Magn Reson 15:38
Oliveros, Olivia; Trachtenberg, Felicia; Haines, Dru et al. (2013) Pain over time and its effects on life in thalassemia. Am J Hematol 88:939-43
Haines, Dru; Martin, Marie; Carson, Susan et al. (2013) Pain in thalassaemia: the effects of age on pain frequency and severity. Br J Haematol 160:680-7
Morris, Claudia R; Kim, Hae-Young; Wood, John et al. (2013) Sildenafil therapy in thalassemia patients with Doppler-defined risk of pulmonary hypertension. Haematologica 98:1359-67
Walter, Patrick B; Porter, John; Evans, Patricia et al. (2013) Increased leucocyte apoptosis in transfused ?-thalassaemia patients. Br J Haematol 160:399-403

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