Assessing Immune Function in Young Patients With Cytopenia That Did Not Respond to Treatment
TCR Vbeta Repertoire and PNH Clones in Children With Refractory Cytopenia (RC). An Open Nonrandomised Multi-Center Prospective Study
2 other identifiers
observational
119
10 countries
10
Brief Summary
RATIONALE: Studying biopsy, bone marrow, and blood samples from patients with cytopenia that did not respond to treatment may help doctors learn more about the disease and plan the best treatment. PURPOSE: This laboratory study is assessing immune function in young patients with cytopenia that did not respond to treatment.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Jan 2007
Longer than P75 for all trials
10 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2007
CompletedFirst Submitted
Initial submission to the registry
July 10, 2007
CompletedFirst Posted
Study publicly available on registry
July 11, 2007
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2012
CompletedStudy Completion
Last participant's last visit for all outcomes
August 1, 2012
CompletedJanuary 16, 2015
January 1, 2015
5.6 years
July 10, 2007
January 15, 2015
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Number of patients with TCR V beta oligoclonality at diagnosis
96 months
Immunophenotype of patients with oligoclonal T-cell expansion
96 months
Number of patients with glycophosphatidylinositol (GPI) deficient clones
96 months
Secondary Outcomes (4)
Number of patients with molecular response as compared to hematological response after IST
96 months
Number of patients with HLA-DR15 antigen expression and molecular response as compared to number of patients with other HLA-DR antigens and molecular response
96 months
Overall survival
96 months
Failure-free survival
96 months
Interventions
For analyzing GPI deficient clones full blood will be analyzed by phenotyping using flowcytometry. For that purpose CD14, CD16 and CD24 expression will be evaluated in CD45 positive cells. Erythroid cells will be evaluated for CD55 and CD59 expression searching for clear populations with a lack of GPI-linked molecules. In addition, immunophenotyping using flowcytometry will be performed to evaluate which differentiation stages of the major hematopoietic lineages in BM and PB are associated with TCRVβ repertoire skewing. Comparison between BM and PB will identify which is the optimal compartment to analyze the responsible hematopoietic clones.
Eligibility Criteria
All patients with MDS
Contact the study team to discuss eligibility requirements. They can help determine if this study is right for you.
Sponsors & Collaborators
Study Sites (10)
St. Anna Children's Hospital
Vienna, A-1090, Austria
Ghent University
Ghent, B-9000, Belgium
University Hospital Motol
Prague, 150 06, Czechia
Arhus Universitetshospital - Skejby
Aarhus, 8200, Denmark
Universitaetskinderklinik - Universitaetsklinikum Freiburg
Freiburg im Breisgau, D-79106, Germany
Our Lady´s Hospital for Sick Children
Dublin, 12, Ireland
Fondazione I.R.C.C.S. Policlinico San Matteo
Pavia, 27100, Italy
Erasmus MC - Sophia Children's Hospital
Rotterdam, 3015 GJ, Netherlands
Hospital Sant Joan de Deu
Barcelona, 08950, Spain
University Children's Hospital
Zurich, CH-8032, Switzerland
Related Publications (2)
Aalbers AM, van den Heuvel-Eibrink MM, Baumann I, Dworzak M, Hasle H, Locatelli F, De Moerloose B, Schmugge M, Mejstrikova E, Novakova M, Zecca M, Zwaan CM, Te Marvelde JG, Langerak AW, van Dongen JJ, Pieters R, Niemeyer CM, van der Velden VH. Bone marrow immunophenotyping by flow cytometry in refractory cytopenia of childhood. Haematologica. 2015 Mar;100(3):315-23. doi: 10.3324/haematol.2014.107706. Epub 2014 Nov 25.
PMID: 25425683DERIVEDAalbers AM, van den Heuvel-Eibrink MM, Baumann I, Beverloo HB, Driessen GJ, Dworzak M, Fischer A, Gohring G, Hasle H, Locatelli F, De Moerloose B, Noellke P, Schmugge M, Stary J, Yoshimi A, Zecca M, Zwaan CM, van Dongen JJ, Pieters R, Niemeyer CM, van der Velden VH, Langerak AW. T-cell receptor Vbeta skewing frequently occurs in refractory cytopenia of childhood and is associated with an expansion of effector cytotoxic T cells: a prospective study by EWOG-MDS. Blood Cancer J. 2014 May 2;4(5):e209. doi: 10.1038/bcj.2014.28.
PMID: 24786393DERIVED
Biospecimen
Bone Marrow Peripheral blood cells
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Marry M. Van Den Heuvel-Eibrink, MD, PhD
Erasmus MC-Sophia Children's Hospital
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- MD Prof. Dr. med. Niemeyer
Study Record Dates
First Submitted
July 10, 2007
First Posted
July 11, 2007
Study Start
January 1, 2007
Primary Completion
August 1, 2012
Study Completion
August 1, 2012
Last Updated
January 16, 2015
Record last verified: 2015-01