Elevated germ cell markers in carcinoma of uncertain primary site do not predict response to platinum based chemotherapy.
We carried out a retrospective review of the medical records of patients with metastatic carcinoma of unknown primary and either raised alpha fetoprotein (AFP) or beta human chorionic gonadotrophin (beta HCG) over a period of 6 years at three teaching hospital oncology units to assess response to platinum based chemotherapy. 15 patients were identified who fitted these criteria. Of these, 3 received no treatment because of poor functional status, 2 patients received only radiotherapy for symptomatic disease and died within 3 months of diagnosis and 1 patient died 2 weeks after diagnosis having received his first cycle of cisplatin-based chemotherapy. 9 patients received at least 2 cycles of chemotherapy. A complete tumour response was seen in only one patient who presented with midline lymphadenopathy and remains disease-free 46 months after treatment. This presentation was consistent with disease already known to herald platinum sensitivity. In the other 8 patients, there was only one partial response that lasted 2 months. The median survival for this group of 9 patients was 4.5 months (range 3 to > 46 months). Our data do not support the postulate that elevated germ cell markers in patients with carcinoma of unknown primary predict a response to cisplatin based chemotherapy.
Currow
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Department of Medical Oncology and Palliative Services, Nepean Hospital, Penrith, NSW, Australia.
Findlay
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M
Cox
K
K
Harnett
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PR
D000328:Adult; D000970:Antineoplastic Agents / Q000627:therapeutic use*; D014408:Biomarkers, Tumor / Q000097:blood*; D018997:Chorionic Gonadotropin, beta Subunit, Human / Q000097:blood; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009382:Neoplasms, Unknown Primary / Q000097:blood* / Q000188:drug therapy*; D017671:Platinum Compounds / Q000627:therapeutic use*; D011379:Prognosis; D012189:Retrospective Studies; D016896:Treatment Outcome; D000509:alpha-Fetoproteins / Q000032:analysis
D000970:Antineoplastic Agents; D014408:Biomarkers, Tumor; D018997:Chorionic Gonadotropin, beta Subunit, Human; D017671:Platinum Compounds; D000509:alpha-Fetoproteins