A randomized Phase II study of interleukin-2 with and without beta-interferon for patients with advanced non-small cell lung cancer: an Eastern Cooperative Oncology Group study (PZ586).
Interleukin-2 (IL-2) and beta-interferon (beta-IFN) are biologic agents with antitumor activity observed in preclinical models. Some studies of patients with advanced non-small cell lung cancer treated with IL-2 report relatively long survival, despite low response rates. Seventy-six evaluable patients with stage IV non-small cell lung cancer were treated in a randomized Phase II study with either IL-2 alone or IL-2 plus beta-IFN. Patients received either IL-2 at 6 x 10(6) Cetus units/m2 3 days weekly or the combination of IL-2 at 5 x 10(6) Cetus units/m2 plus beta-IFN at 6 x 10(6) units/m2, both given 3 days weekly. Both biologic agents were administered by intravenous bolus injection on an outpatient basis. Objective responses were observed in 3/76 (4%)) patients. Grade 4 toxicity occurred in 3/39 patients treated with IL-2 alone, and in 4/37 patients treated with IL-2 plus beta-IFN. An additional lethal respiratory toxicity occurred in a patient who received IL-2 plus beta-IFN. The median survival of all patients treated on this study was 33 weeks. Despite producing only a 4% objective response rate. IL-2 appears to have a favorable impact on survival comparable to chemotherapy. The role for this immune therapy in the management of non-small cell lung cancer requires further study.
Tester
W J
WJ
Albert Einstein Cancer Center, Philadelphia, PA 19141, USA. testerb@aehn2.einstein.edu
Kim
K M
KM
Krigel
R L
RL
Bonomi
P D
PD
Glick
J H
JH
Asbury
R F
RF
Kirkwood
J M
JM
Blum
R H
RH
Schiller
J H
JH
D000230:Adenocarcinoma / Q000188:drug therapy / Q000401:mortality / Q000473:pathology; D000328:Adult; D000368:Aged; D000970:Antineoplastic Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D002289:Carcinoma, Non-Small-Cell Lung / Q000188:drug therapy* / Q000401:mortality / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000188:drug therapy / Q000401:mortality / Q000473:pathology; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D007275:Injections, Intravenous; D016899:Interferon-beta / Q000008:administration & dosage / Q000627:therapeutic use*; D007376:Interleukin-2 / Q000008:administration & dosage / Q000627:therapeutic use*; D008175:Lung Neoplasms / Q000188:drug therapy* / Q000401:mortality / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D012189:Retrospective Studies; D015996:Survival Rate; D016896:Treatment Outcome
D000970:Antineoplastic Agents; D007376:Interleukin-2; D016899:Interferon-beta