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EBMT 2025 | Refining the use of PTCy for GvHD prophylaxis

Florent Malard, MD, PhD, Saint-Antoine Hospital and Sorbonne University, Paris, France, comments on the use of post-transplant cyclophosphamide (PTCy) as prophylaxis for graft-versus-host disease (GvHD), highlighting its success in preventing both acute and chronic GvHD. Prof. Malard discusses the refinement of PTCy use to reduce side effects, highlighting studies investigating using this agent at lower doses. This interview took place at the 51st Annual Meeting of the EBMT in Florence, Italy.

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Transcript

Post-allo cyclophosphamide now is a well-established prophylaxis for graft-versus-host disease, both acute and chronic. It has been established first in patients that receive a transplantation from a haploidentical donor, but now it is used also for patients with mismatch-unrelated donors, but also match-related and unrelated donors. It’s very successful. We still need to remain cautious because there is some toxicity, some cardiac toxicity, also some infectious complications...

Post-allo cyclophosphamide now is a well-established prophylaxis for graft-versus-host disease, both acute and chronic. It has been established first in patients that receive a transplantation from a haploidentical donor, but now it is used also for patients with mismatch-unrelated donors, but also match-related and unrelated donors. It’s very successful. We still need to remain cautious because there is some toxicity, some cardiac toxicity, also some infectious complications. So now the field is moving to see if we can use lower doses of post-transplant cyclophosphamide with some studies that have been done, some pilot study, but also some future randomized study to evaluate lower doses of post-transplant cyclophosphamide to see if this is still as effective but with less toxicity. So I really think that PTCy is what we use today. This is also the future of the GvHD prophylaxis but with refinement regarding its use.

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Disclosures

BMS: Honoraria; Therakos/Mallinckrodt: Honoraria; Sanofi: Honoraria; JAZZ Pharmaceuticals: Honoraria; Gilead: Honoraria; Novartis: Honoraria; AstraZeneca: Honoraria; MSD: Honoraria.