Pralatrexate: an emerging new agent with activity in T-cell lymphomas.

Abstract:

PURPOSE OF REVIEW:T-cell lymphomas (TCL) represent a particularly poor prognosis subgroup of lymphomas. The goal of this review is to provide emerging information on one agent demonstrating activity in these challenging diseases. Pralatrexate is a novel antifolate designed to have high affinity for the reduced folate carrier type 1 (RFC-1). Preclinical and clinical studies have demonstrated that pralatrexate has significant activity against TCL. RECENT FINDINGS:The high affinity of pralatrexate for RFC-1 significantly improves its internalization into cells. Preclinical studies in models of B-cell lymphomas and TCL have demonstrated that pralatrexate demonstrates activity superior to traditional antifolates. Phase I studies have shown the dose-limiting toxicity to be stomatitis, which can be abrogated with folic acid and vitamin B12 supplementation. Early phase studies have shown marked activity across a diverse panoply of TCL. SUMMARY:Pralatrexate is an antifolate designed to be internalized more rapidly than other traditional antifolates. Preclinical studies have demonstrated its superiority to methotrexate, and early phase I and II studies have shown marked activity across many poor-risk subtypes of TCL. Future studies are directed towards understanding the pharmacokinetic features of the drug, and expanding the population of patients with TCL and B-cell lymphomas.

journal_name

Curr Opin Oncol

authors

O'Connor OA

doi

10.1097/01.cco.0000245309.74767.20

subject

Has Abstract

pub_date

2006-11-01 00:00:00

pages

591-7

issue

6

eissn

1040-8746

issn

1531-703X

pii

00001622-200611000-00008

journal_volume

18

pub_type

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