Fifty-two patients with epithelial ovarian cancer were treated with yt
trium-90-labelled monoclonal antibody HMFG1 administered intraperitone
ally following conventional surgery and chemotherapy as part of an ext
ended phase I-II trial. The treatment was well tolerated and the only
significant toxicity observed was reversible myelosuppression as previ
ously described. Following conventional surgery and chemotherapy, 21 o
ut of the 52 patients had no evidence of residual disease and were reg
arded as receiving treatment in an adjuvant setting. To date, two of t
hese patients have died of their disease (follow-up 3-62 months, media
n follow-up 35 months). This extended phase I-II study suggests that p
atients with advanced ovarian cancer who achieve a complete remission
following conventional therapy may benefit from further treatment with
intraperitoneal radioactive monoclonal antibody.