Abstract
An important objective for patients with unresectable hepatocellular carcinoma (HCC) is the development of effective chemotherapy. We administered a combination of biological response modifiers and anticancer agents to 24 patients with unresectable HCC. Each case had an implanted infuser port which was connected to a catheter placed in the hepatic artery for the intraarterial (i.a.) administration of chemotherapy. The following agents were administered to each patient: recombinant interleukin-2 (800 000 JRU/day infused i. a. continuously for 6 days/week); OK-432 (5 KE injected i. a. twice in 4 weeks and i. m. three times per week); Adriamycin (10 mg injected i.a. twice in 4 weeks); cyclophosphamide (300 mg injected i. a. twice in 4 weeks), and famotidine (40 mg/day administered orally). Objective response was assessed according to tumor size measured by computed tomography and angiography before and after treatment. We observed a complete response (CR) in 4, partial response (PR) in 3, minor response (MR) in 7, no change (NC) in 7, and progressive disease (PD) in 3. The response rate (CR+PR+MR) was 58.3%. The overall 2-year survival rate was 52%. The 2-year survival rate of the responders (CR+PR+MR) was 80%, while that of the non-responders (NC+PD) was 0%. There was a significant difference between the responders and non-responders in respect to survival rate (P<0.05). The percentages of CD25+ cells, CD56+ cells, and Leu7-CD16+ cells and NK activity in the peripheral blood showed a significant increase following the regimen. Serum levels of tumor necrosis factor α TNFα rose after the initiation of OK-432. TNFα levels were higher in the responders than in the non-responders. Adverse effects included high fever (all patients) and severe transient hypotension (15 patient) that was controlled by convervative therapy. Combined immunochemotherapy administered intraarterially may be a new strategy for treating unresectable HCC.
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Oka, M., Hazama, S., Yoshino, S. et al. Intraarterial combined immunochemotherapy for unresectable hepatocellular carcinoma: preliminary results. Cancer Immunol Immunother 38, 194–200 (1994). https://doi.org/10.1007/BF01525641
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DOI: https://doi.org/10.1007/BF01525641