Cellect Biotechnology Ltd.

Finding a donor remains a challenge for patients in need of an urgent hematopoietic stem cell transplantation (HSCT). The ability to obtain half matched stem cells from any family member represents a significant breakthrough in the field. Haploidentical haplo-HSCT is characterized by the nearly uniform and immediate availability of a donor and the availability of the donor for post-transplant cellular immunotherapy. However, haplo-HSCT has a high risk of Graft versus Host Disease (GvHD) and poor immune reconstitution when GvHD is prevented by all existing methods of vigorous ex vivo or in vivo T-cell depletion. Different treatment approaches are currently being explored to mitigate complications such as graft rejection, severe GvHD, and prolonged immune suppression. Novel experimental utilization of T regulatory cells, alloreactive natural killer (NK) cells, and other T cell subsets hold great promise. Cellect Biotherapeutics' platform technology, ApoGraft, is based on the findings that GvHD can be prevented by Fas receptor mediated selective depletion of T cell subsets, ex vivo. The investigators hypothesize that the use of ApoGrafts for haplo-HSCT will be safe, and reduce rates of GVHD without affecting Graft-versus-Leukemia (GvL).

This is a non-interventional, long-term follow-up study in subjects who received ApoGraft in study ApoGraft-01. Up to 12 subjects who completed ApoGraft-01 study will be offered to participate in this follow-up study.
Subjects who completed ApoGraft-01 study and have signed informed consent for this follow-up study will be eligible to enroll. Subject will attend in-clinic visits up to 2 years post transplantation, and will undergo the following evaluations: acute and chronic graft versus host disease (GvHD) assessments, survival status (overall, relapse-free), disease status (disease relapse/recurrence), physical examination, safety laboratory and concomitant medication use.

Interventional, open label, Phase I/II, Safety and Proof-of-Concept Study, with a follow up period of 180 days after the transplantation of ApoGraft.