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Clinical Trial Summary

Patients who have measurable residual disease (MRDpos, defined as MRD > 0.1% by flowcytometry or detectable mutant Nucleophosmin 1 (NPM1) by quantitative polymerase chain reaction (qPCR) after two cycles of intensive chemotherapy) prior to start conditioning for an allogeneic Hematopoietic Cell Transplantation (HCT) have a very high risk of relapse after transplantation. Important questions in the field are whether patients with MRD after intensive chemotherapy can be converted to MRD negativity (i.e. undetectable MRD, MRDneg) and whether this conversion impacts on the relapse rate after transplantation. This trial aims to develop effective "interphase" treatment for patients in morphological complete remission (CR) with MRD after at least 2 cycles of intensive chemotherapy and prior to start conditioning for an allogeneic HCT. Flotetuzumab, a bispecific antibody-based molecule against CD3 and CD123 in a dual-affinity re-targeting antibody (DART®) format is a new treatment modality based on immunomodulation. The rationale to use flotetuzumab in this study is: 1) its antileukemic activity reported in R/R AML; 2) its limited extra-medullary (i.e. tissue) toxicity; and 3) its short halflife.

Clinical Trial Description


Study Design

Related Conditions & MeSH terms

NCT number NCT05063123
Study type Interventional
Source Stichting Hemato-Oncologie voor Volwassenen Nederland
Contact M. Jongen-Lavrencic, PhD
Phone +31 (0) 10 4391367
Email [email protected]
Status Not yet recruiting
Phase Phase 2
Start date January 2022
Completion date December 2026

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