Annals of Oncology 13:1919-1924, 2002
© 2002 European Society for Medical Oncology
Original Paper |
A phase II study of outpatient subcutaneous histamine dihydrochloride, interleukin-2 and interferon-
in patients with metastatic melanoma
1 Department of Oncology, Aarhus University Hospital, Aarhus; 2 Department of Oncology Odense University Hospital, Odense, Denmark
Received 25 March 2002 ; revised 30 April 2002, accepted 17 May 2002
Background:
Experimental data had suggested a synergistic effect of histamine with interleukin-2 (IL-2) and interferon-
(IFN-
).
Patients and methods:
Forty-one patients with metastatic melanoma received IL-2 9 MU subcutaneously (s.c.) twice daily on days 48 and 2529, and once daily on days 1115 and 3236. IFN-
-2b was given as 5 MU s.c. on days 13 and then daily to day 43. Histamine 1 mg s.c. was administered twice daily, following IL-2 and IFN injections starting on day 4. Efficacy and toxicity were compared with those of 42 patients included on exactly the same criteria and receiving the same regimen but without histamine.
Results:
Two patients achieved a partial response (PR) for an objective response rate of 5% [95% confidence interval (CI) 1% to 17%]. Median overall survival was 7.8 months (95% CI 6.49.1). In the control group, two complete responses and one PR were achieved. Median overall survival was 7.1 months (95% CI 5.48.9).
Conclusions:
This IL-2 and IFN regimen was well tolerated on an outpatient basis. However, the applied regimen cannot be recommended because of the low clinical efficacy. Histamine did not add efficacy or toxicity in combination with this moderate-dose schedule of IL-2 and IFN.
Key words: histamine, interferon-
, interleukin-2, metastatic melanoma, phase II
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