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autologous blood and marrow transplantation - Blog Science ...

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Autograft Followed by Allograft<br />

Without Myeloablative Conditioning Regimen:<br />

A New Approach for Resistant<br />

Hematologic Neoplasia <strong>and</strong> Breast Cancer<br />

Angelo M. Carella, Enrica Lerma, Anna Dejana,<br />

Maria T. Corsetti, Lidia Celesti, Federica Benvenuto,<br />

Osvaldo Figari, Caterina Parodi, Mauro Valbonesi,<br />

Lucia Casarino, Francesco De Stefano, Andrea Bacigalupo<br />

Hematology!ABMT Unit (A.M.C., E.L., A.D., M.T.C., L.Ce., F.B., O.F., A.B.),<br />

Department of Hematology, Ospedale S. Martino, Genoa; Cytogenetics (CP.),<br />

Genoa; Blood Center (M.V.), Genoa; Forensic Medicine (L.Ca., F.D.S.),<br />

University of Genoa, Italy<br />

ABSTRACT<br />

To reduce relapse <strong>and</strong> morbidity risks of allograft in patients with refractory or<br />

relapsed hematologic malignancies or metastatic breast cancer, a trial was<br />

undertaken consisting of high-dose therapy <strong>and</strong> autotransplant followed by<br />

immunosuppressive therapy with fludarabine <strong>and</strong> cyclophosphamide (Flu-Cy<br />

protocol) <strong>and</strong> infusion of mobilized HLA-matched sibling donor stem cells. Graft-<br />

vs.-host disease (GVHD) prophylaxis consisted of cyclosporine <strong>and</strong> methotrexate.<br />

Fourteen patients with the following diagnoses entered our trial: Hodgkin's disease<br />

(n=4), non-Hodgkin's lymphoma («=2), advanced chronic myelogenous leukemia<br />

(n=2) (one patient with accelerated phase Ph-negative but pi90 BCR-ABL gene<br />

positive by RT-PCR <strong>and</strong> one with Ph-positive blastic phase), metastatic breast<br />

cancer (n=4). The two other patients had refractory anemia with excess blasts<br />

(RAEB) <strong>and</strong> received allografts without a myeloablative conditioning regimen. To<br />

date, with a median follow-up of 8 months (range 3-14) after allografting,<br />

complete chimerism (100% donor cells) was achieved in six patients <strong>and</strong> >90% in<br />

two others. Five patients did not achieve complete chimerism: two patients died of<br />

progressive Hodgkin's disease <strong>and</strong> breast cancer, one patient died in complete<br />

remission (CR) of aspergillus during progressive donor cell engraftment, <strong>and</strong> the<br />

patients with BP-CML <strong>and</strong> RAEB appear to have had <strong>autologous</strong> recovery. Two of<br />

the Hodgkin's disease patients, who were in partial remission (PR) after<br />

autografting, achieved CR after allografting. One patient is disease-free 10 months<br />

104

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