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TropicALL study; Thromboprophylaxis in Children treated for Acute Lymphoblastic Leukemia with
Low-molecular-weight heparin: a randomized controlled trial

Main objective:To assess the efficacy of thromboprophylaxis with high prophylactic dose LMWH as compared with standard care without systemic thromboprophylaxis in children treated for primary ALL during asparaginase treatment.Secondary objectives:1…

Validation of digital-PCR analysis through programmed imatinib interruption in PCR negative chronic myeloid leukemia patients.

Primary ObjectiveTo assess the capability of the dPCR technique to predict the absence of disease relapses after imatinib discontinuation in CML patients with negative Q-RT-PCR results for longer than 18 months.Secondary Objectives• To estimate…

Cardiovascular function after Stem cell Transplantation

To study whether CMR analysisdifferences in aortic stiffness and myocardial lipid accumulation between SCT recipients and healthy, age-matched controls

Phase 1B Study of the Safety, Tolerance, and Pharmacokinetics of Oral Posaconazole in Immunocompromised Children With Neutropenia

The primary objective of this study is to evaluate the PK of POS administered orally at three dosage levels to immunocompromised children with expected neutropenia (selected oncology patients, aplastic anemia patients and patients which undergo a…

Prophylactic infusion of CD4 positive donor lymphocytes early after T-cell depleted allogeneic stem cell transplantation in patients with an unrelated donor

In this phase II study, the toxicity and treatment effects of early donor derived CD4+ lymphocyte infusion, three months after allo-SCT, will be evaluated

Is early revaccination after ALL therapy feasible ?
Evaluation of loss of antibodies and responsiveness to (re-)vaccination in children after treatment for acute lymphocytic leukemia.

To determine effect of early (re) vaccinations after the current intensive chemotherapy for ALL. We will determine if there is a difference in respons to conjugated (T cell dependent) and polysaccharide (T cell independent) vaccines. This may result…

Transient myeloproliferative disease in children with Down syndrome
Part A: Screening newborns with Down syndrome for TMD
Part B: Treatment and follow-up of children with Down syndrome and TMD

Primary aims:1. To perform a population-based screen to estimate the exact frequency ot transient leukemia in Dutch newborns with Down syndrome2. To investigate the realtionship between transient leukemia and the occurrence of DS ML and ALL at later…

Target attainment of ciprofloxacin as infection prophylaxis during chemotherapy-induced neutropenia in patients treated for haematological malignancies.

Prospectively investigate whether ciprofloxacin, administered as antibiotic prophylaxis in patients treated for haematological malignancies (with or without gastro-intestinal mucositis), in the currently recommended dosing regimen (500 mg orally or…

Short-term combined acalabrutinib and venetoclax treatment of newly diagnosed patients with CLL at high risk of infection and/or early treatment, who do not fulfil IWCLL treatment criteria for treatment. A randomized study with extensive immune phenotyping.

This study has been transitioned to CTIS with ID 2024-511072-33-00 check the CTIS register for the current data. The aim is thereby to reduce the risk of serious infections and the need for regular CLL treatment.

Minimal residual disease in peripheral blood compared to bone marrow in patients treated for acute myeloid leukemia

Our research aims to determine and compare MRD in BM and PB with our current qualified MRD test. The study takes place in at the Amsterdam UMC location VUmc. We take two extra tubes (14 ml total) of heparin blood at the same day as the planned BM…

Determination of reference values: numbers, repertoire and products of leukocytes in immunological healthy elderly

Generation of (age-dependent) reference values **of leukocytes and their subtypes and of their products, as well as analysis of (age-dependent) IG / TR repertoire. In order to be able to distinguish the age-dependent effects from effects caused by…

Clinical aspects and molecular mechanisms in large granular lymphocyte (LGL) leukemia - IDeAL study

Overall objective of this IDeAL study is to unravel the biological heterogeneity of LGL leukemia and to correlate this with the clinical features. More specific objectives are: 1. Build a LGL leukemia registry (clinical features and lab data).2. Set…

Vaccination response to pneumococcal antigen as novel predictor for successful tyrosine kinase inhibitor discontinuation in chronic myeloid leukemia.

To assess whether an adequate response to pneumococcal antigen, as a marker of overall humoral immune system reactivity, predicts sustained TFR. An adequate response to pneumococcal antigen will be defined as achieving anti-pneumococcal IgG levels…

Protocol for treatment of children and adolescents with acute myeloid leukemia 0-18 years

This study has been transitioned to CTIS with ID 2024-518254-16-00 check the CTIS register for the current data. The primary aim of the NOPHO-DBH AML 2012 study is to improve EFS and OS in children with AML. To improve outcome, an intensified…

An open-label, randomized clinical trial on teicoplanin infection prophylaxis in pediatric patients with acute myeloid leukemia

This study has been transitioned to CTIS with ID 2023-506546-23-00 check the CTIS register for the current data. Objectives safety run-in: The primary objective is:• To assess the safety of i.v. teicoplanin prophylaxis three times per week with a…

A phase 1 trial to assess P-gp mediated drug interactions with ASTX660 in healthy volunteers

The main purpose of this study is to investigate the effect of ASTX660 on how quickly and to what extent quinidine and fexofenadine are absorbed, distributed, broken down and eliminated from the body. Quinidine and fexofenadine have been chosen…

International Study for Treatment of Standard Risk Childhood Relapsed ALL 2010

Primary objectives:- Overall: Improvement of event-free survival (EFS) probabilities in childhood relapsed ALL- Randomization 1: EFS of Arm A (ALL-REZ BFM 2002) versus B (ALLR3) in SR patients- Randomization 2: Influence of epratuzumab on EFS in…

Diagnosing invasive fungal infections on DNA extracted from serum or plasma of immunocompromised patients with a suspected invasive pulmonary fungal infection

1. Optimise the DNA extraction process on serum and plasma to increase the sensitivity of DNA-based fungal infection diagnostic test (especially genetic mutations conferring azole resistance in invasive aspergillosis). 2. Evaluate new targeted as…

Accuracy Testing of the Chromosomal Aberration and Gene Mutation Markers of the AMLProfiler

The objective of the study is to demonstrate the accuracy (positive and negative percent agreement) by comparing AMLProfiler results from fresh and banked, AML, APL and RAEB bone marrow samples at multiple participating clinical sites with results…

Protocol ALL-11:Treatment study protocol of the Dutch Childhood Oncology Group for children and adolescents (1-19 year) with newly diagnosed acute lymphoblastic leukemia

1. To improve the overall outcome as compared to the previous protocols of the DCOG, especially ALL-9 and ALL-10.This is aimed for by decreasing therapy for part of the patients (TEL/AML1, Down syndrome, PPR only), increasing therapy for IKZF1…