The roles of tumour necrosis factor (TNF) and anti-TNF ther apy in malignan
cy are reviewed, including an overview of baseline risk factors for maligna
ncy in inflammatory diseases and the incidences of malignancies observed in
clinical trials of an anti-TNF-alpha therapy, infliximab. The preclinical
data and early clinical experience presented for infliximab do not provide
evidence for a causal relationship between TNF a antagonism and the develop
ment of lymphoid or nonlymphoid cancers.