A Two-Step Approach to Bone Marrow Transplant Using Cells From A Partially-Matched Relative

Summary

The purpose of this study is to develop a way of treating patients who do not have a completely matched family donor or a readily available unrelated donor with bone marrow transplant by using a partially-matched family donor. Patients receiving this type of transplant will receive chemotherapy and/or radiation to treat their disease. They will also receive their donor's cells in 2 parts. During the first part, the donor's lymphocytes will be exposed to one of the chemotherapy agents to help the patient become tolerant to the lymphocytes. In the second part of the transplant, the patient will receive their donor's stem cells to help recover their peripheral blood counts and establish long-term engraftment. The hypothesis of this study is that in partially-matched allogeneic transplant, there is a defined number of donor T-cells that can be treated and given to the recipient to avoid post-transplant infection without causing severe graft-versus-host disease.

Timeline

Start

2006-01

Primary completion

2009-08

Completion

2010-06

Publications

• Grosso D, Carabasi M, Filicko-O'Hara J, Kasner M, Wagner JL, Colombe B, Cornett Farley P, O'Hara W, Flomenberg P, Werner-Wasik M, Brunner J, Mookerjee B, Hyslop T, Weiss M, Flomenberg N. A 2-step approach to myeloablative haploidentical stem cell transplantation: a phase 1/2 trial performed with optimized T-cell dosing. Blood. 2011 Oct 27;118(17):4732-9. doi: 10.1182/blood-2011-07-365338. Epub 2011 Aug 25.

Drugs

Indications