• Asian Pacific Journal of Cancer Prevention
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• 제16권15호
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• pp.6621-6626
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• 2015

Purpose: To evaluate effects of metformin on clinical outcome of non-diabetic patients with stage IV NSCLC. Materials and Methods: A prospective, randomized, open-label, controlled pilot study was conducted on patients with stage IV NSCLC with an Eastern Cooperative Oncology Group Performance Status (ECOG PS) of 0-2, excluding patients with diabetes and lactic acidosis. Thirty chemo-$na\ddot{i}ve$, non-diabetic patients with stage IV NSCLC were enrolled. Fifteen patients received intravenous gemcitabine/cisplatin regimen alone (arm B) while fifteen patients received the same regimen plus daily oral metformin 500mg (arm A). The effect of metformin on chemotherapy-response rates, survival, and adverse events in these patients was evaluated. Results: Objective response rate (ORR) and median overall survival (OS) in arms A and B were 46.7% versus 13.3% respectively, p=0.109 and 12 months versus 6.5 months, respectively, p=0.119. Median progression free survival (PFS) in arms A and B was 5.5 months versus 5 months, p=0.062. No significant increase in toxicity was observed in arm A versus arm B. Percentage of patients who experienced nausea was significantly lower in arm A versus arm B, at 26.7% versus 66.7% respectively, p=0.028. Conclusions: Metformin administration reduced occurrence of chemotherapy induced-nausea. Non-statistically significant improvements in the ORR or OS were observed. Metformin had no effect on PFS.

• Asian Pacific Journal of Cancer Prevention
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• 제15권3호
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• pp.1313-1320
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• 2014

Introduction: Although most prostate cancers initially respond to castration with luteinizing hormonereleasing analogues or bilateral orchiectomy, progression eventually occurs. Based on the exciting results of several randomized controlled trials (RCTs), it seems that patients with metastatic castration-resistant prostate cancer (mCRPC) might benefit more from treatment withabiraterone. Therefore we conducted a systematic review to evaluate the efficacy and toxicity of abiraterone in the treatment of mCRPC. Methods: Literature was searched from Embase, PubMed, Web of Science, and Cochrane Library up to July, 2013. Quality of the study was evaluated according to the Cochrane's risk of bias of randomized controlled trial (RCT) tool, then the Grading of Recommendations Assessment, Development and Evaluation (GRADE) System was used to rate the level of evidence. Stata 12.0 was used for statistical analysis. Summary data from RCTs comparing abiraterone plus prednisone versus placebo plus prednisone for mCRPC were meta-analyzed. Pooled hazard ratios (HRs) for overall survival (OS), radiographic progression-free survival (RPFS) and time to PSA progression (TTPP); Pooled risk ratios (RR) for PSA response rate, objective response rate and adverse event were calculated. Results: Ten trials were included in the systematic review; Data of 2,283 patients (1,343 abiraterone; 940 placebo) from two phase 3 trials: COU-AA-301 and COU-AA-302 were meta-analyzed. Compared with placebo, abiraterone significantly prolonged OS (HR, 0.74; 95% confidence interval [CI], 0.66 to 0.84), RPFS (HR, 0.59; 95% CI, 0.48 to 0.74) and time to PSA progression (HR, 0.55; 95% CI, 0.43 to 0.70); it also significantly increased PSA response rate (RR, 3.63; 95% CI, 1.72 to 7.65) and objective response rate (RR, 3.05; 95% CI, 1.51 to 6.15). This meta-analysis suggested that the adverse events caused by abiraterone are acceptable and can be controlled. Conclutios: Abiraterone significantly prolonged OS, RPFS and time to progression patients with mCRPC, regardless of prior chemotherapy or whether chemotherapy-na$\ddot{i}$ve, and no unexpected toxicity was evident. Abiraterone can serve as a new standard therapy for mCRPC.

• Tuberculosis and Respiratory Diseases
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• 제63권2호
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• pp.154-164
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• 2007

배경: Irinotecan hydrochloride는 topoisomerase I inhibitor로서 소세포 폐암에 효과적인 약제로 알려져 있다. Irinotecan은 cisplatin과 더불어 방사선감작물질로 작용하기도 한다. 본 연구는 이전에 치료받은 경험이 없는 제한성 병기의 소세포 폐암 환자에서 irinotecan과 cisplatin(IP)의 방사선 동시화학요법의 효과를 평가하기 위하여 시행되었다. 방법: 2002년 12월부터 2004년 11월까지 충남대학교 병원에서 새로이 제한성 병기의 소세포 폐암으로 진단된 24명의 환자들을 대상으로 하였다. Irinotecan $60mg/m^2$을 제 1일과 제 8일째 투여하였고 cisplatin $60mg/m^2$을 제 1일째 투여하였으며 매 3주 간격으로 시행되었다. 제 3차 항암화학요법을 시작하는 날과 동시에 과다 분할방사선 치료(twice-daily thoracic irradiation; 45 Gy total)을 시작하였다. 예방적 전 뇌 방사선 조사(Prophylactic cranial irradiation)가 방사선 동시화학요법이 끝난 후 완전반응(complete response)을 나타낸 환자에서 시행되었다. 제 2차 항암요법과 제 6차 항암요법이 끝난 후에 흉부 전산화 단층촬영과 기관지경 등을 통한 병기의 재평가가 이루어졌다. 결과: 병기의 재평가는 19명의 환자에게 이루어졌다. 중앙 추적관찰기간은 12.5개월이고 전체 99회의 항암치료가 시행되었다. 평균 한 환자당 5.2회의 항암치료가 시행되었다. 실제 용량강도는 cisplatin $19.6mg/m^2$/week과 irinotecan $38.2mg/m^2$/week이었다. 9명의 환자가 완전반응을 보였고 10명의 환자가 부분반응(partial response)을 보여서 전체 반응률은 95%였다. 3에서 4도의 혈액학적 독성은 백혈구 감소증(35% of cycles), 빈혈(7% of cycles), 혈소판 감소증(7% of cycles) 등으로 나타났다. 3에서 4도의 비 혈액학적 독성은 설사(5% of cycles)였다. 3에서 4도의 방사선 식도염(10% of patients)을 제외하고는 과다 분할 방사선 치료를 이용한 방사선 동시 화학요법의 기존의 방법과 독성 면에서는 큰 차이가 없었다. 치료와 관련된 사망은 관찰되지 않았다. 평가가 가능한 환자들에서 1년 생존율과 2년 생존율은 각각 89% (16/18)와 47% (9/18)였다. 결론: 3주 간격으로 시행된 irinotecan과 cisplatin을 이용한 과다분할 방사선 동시 요법은 제한성 병기의 소세포 폐암 환자에서 부작용은 높지 않으면서 효과적인 치료법으로 고려될 수 있을 것이다.