The Effect of Mitomycin-c, Vinblastine, and Cisplatin(MVP) Combined Chemotherapy in Non-Small Cell Lung Cancer / 결핵

BACKGROUND: Despite advances in chemotherapy, the treatment of inoperable non-small cell carcinoma of the lung remains poor. According to the recent reports, the response rates of mitomycin, vinblastine, and cisplatin(MVP) chemotherapy are higher than those of other cisplatin based polychemotherapy and MVP chemotherapy can be used as neoadjuvant chemotherapeutic regimen. But the overall response rates of MVP chemotherapy range from 17 to 53 percent, so we studied the effect of MVP chemotherapy in advanced non-small cell lung cancer. METHOD: We treated forty patients with stage III or IV non-small cell lung cancer with two courses of MVP chemotherapy (8mg/m2 of mitomycin on day 1, 6mg/m2 of vinblastine on day 2 & day 14, and 100mg/m2 of cisplastin on day 1) at 4 weeks interval. Then all patients were evaluated the response of chemotherapy 4 weeks later, and received further chemotherapy, palliative radiotherapy or supportive therapy according to the patient's condition. We also determined the median survival time and prognostic factors. RESULTS: 1) Nine patients(23%) had a partial reponse, 23 patients(57%) had a stable disease, and disease progressed in 8 patients(20%). There were no patients with complete response. 2) The overall median survival time was 36 weeks(range, 9 to 119+ weeks). The median survival time of responder(partial response) and non-responder(stable and progressed) groups were 60 weeks(range, 36 to 82+ weeks) and 31 weeks(range, 9 to 119+ weeks) respectively(p=0.03). 3) The median survival time of the female group was 71 weeks and significantly prolonged in comparision with 35 weeks of the male group(p=0.01). But, the other prognostic factors didn't affect the survival time and response rate. 4) The median survival times of chemotherapy group and chemotherapy with palliative radiotherapy group were not significantly different. CONCLUSION: MVP combined chemotherapy is unsatisfactory in improving survival in advanced non-small cell lung cancer. Therefore, further studies are needed to find more active new agents and to estabilish the efficacy of the combined treatment with radiotherapy and/or surgery.

Hyperfractionated Radiotherapy Following Induction Chemotherapy for Stage III Non-Small Cell Lung Cancer: Random iced for Adjuvant Chemotherapy vs. Observation / 대한치료방사선과학회지

Since Jan. 1991 a prospective randomized study for Stage III unresectable non small cell lung cancer(NSCLC) has been conducted to evaluate the response rate and tolerance of induction chemotherapy with MVP followed by hyperfractionated radiotherapy and evaluate the efficacy of maintenance chemotherapy in Asan Medical Center. All patients in this study were treated with hypefractionated radiotherapy (120 cGy/fx BID, 0480 cGy/54 fx) following 3 cycles of induction chemotherapy, MVP (Mitomycin C 6 mg/m2, Vinblastin B mg/ m2, Cisplatin 60 Mg/ m2) and then the partial and complete responders from induction chemotherapy were randomized to 3 cycles of adjuvant MVP chemotherapy group and observation group. 48 patients were registered to this study until December 1992; among 48 patients 3 refused further treatment after induction chemotherapy and 6 received incomplete radiation therapy because of patient's refusal, 39 completed planned therapy. Twenty-three(58%) patients including 2 complete responders showed response from induction chemotherapy. Among the 21 patients who achieved a partial response after induction chemotherapy, 1 patient rendered complete clearance of disease and 10 patients showed further regression of tumor following hypefractionated radiotherapy. Remaining 10 patients showed stable disease or progression after radiotherapy. Of the sixteen patients judged to have stable disease or progression after induction chemotherapy, seven showed more than partial remission after radiotherapy but nine showed no response in spite of radiotherapy. Of the 35 patients who completed induction chemotherapy and radiotherapy, 25 patients(64%) including 3 complete responders showed more than partial remission. Nineteen patients were randomized after radiotherapy. Nine patients were allocated to adjuvant chemotherapy group and 4/9 shewed further regression of tumor after adjuvant chemotherapy. For the time being, there is no suggestion of a difference between the adjuvant chemotherapy group and observation group in distant metastasis rate and survival. Median survival time was 13 months. Actuarial survival rates at 6, 12 and 18 months of 39 patients who completed this study were 84.6%, 53.7% and 40.3%, respectively. The partial and complete responders from induction chemotherapy showed significantly bettor survival than non-responders(p=0.028). Incidence of radiation pneumonitis in this stuffy group was less than that in historical control group inspite of induction chemotherapy. All patients tolerated hyperfractionated radiotherapy without definite increase of acute complications compared with conventional radiotherapy group. The longer fellow up is needed to evaluate the efficacies of induction and maintenance chemotherapy and survival advantage by hypefractionated radiotherapy but authors are encouraged with an excellent tolerance, higher response rate and improvement of one year survival rate in patients of this study.

MVP Chemotherpy and Hyperfractionated Radiotherapy for Stage III Unresectable Non-Small Cell Lung Cancer: Randomized for maintenance Chemotherapy vs. Observation: Preliminary Report / 대한치료방사선과학회지

To evaluate the effect of MVP chemotherapy and hyperfractionated radiotherapy in Stage III unresectable non small cell lung cancer (NSCLC), authors have conducted a prospective randomized study since January 1991. Stage IIIa or IIIb unresectable NSCLC patients were treated with hyperfractionated radiotherapy (120 cGy/fx BID) up to 6500 cGY following 3 cycles of induction MVP (Mitomycin C 6 mg/m2, vinblastine 6 mg/m2, Cisplatin 60 mg/m2) and randomized for either oservation or 3 cycles of maintenance MVP chemotherapy. Until August 1991, 18 patients were registered to this study. 4 cases were stage IIIa and 14 were stage IIIb. Among 18 cases 2 were lost after 2 cycles of chemotherapy, and 16 were analyzed for this preliminary report. The response rate of induction chemotherapy was 62.5%; partial response, 50% and minimal response, 12.5%. Residual tumor of the one partial responder was completely disappeared after radiotherapy. Among 6 cases who were progressed during induction chemotherapy, 4 of them were also progressed after radiotherapy. All patients were tolerated BID radiotherapy without definite increase of acute complications, compared with conventional radiotherapy group. But at the time of this report, one patient expired in two month after the completion of the radiotherapy because of treatment related complication. Although the longer follow up is needed, authors are encouraged with higher response rate and acceptable toxicity of this treatment. Authors believe that this study is worthwhile to continue.