1.Survival of small-cell lung cancer and its determinants of outcome in Singapore.
Chee-Keong TOH ; Siew-Wan HEE ; Wan-Teck LIM ; Swan-Swan LEONG ; Kam-Weng FONG ; Swee-Peng YAP ; Anne A L HSU ; Philip ENG ; Heng-Nung KOONG ; Thirugnanam AGASTHIAN ; Eng-Huat TAN
Annals of the Academy of Medicine, Singapore 2007;36(3):181-188
INTRODUCTIONThe survival and epidemiology of small-cell lung cancer (SCLC) in Singapore has not been described. We aim to present the characteristics as well as determine the survival outcome and important prognostic factors for SCLC patients.
MATERIALS AND METHODSA retrospective analysis of SCLC patients diagnosed from 1999 to 2002 was conducted at the Outram campus, Singapore. Clinical characteristics and treatment data were obtained from case records and survival data were checked with the registry of births and deaths on 30 May 2005.
RESULTSOne hundred and eleven patients were analysed. There were 38 (34.2%) limited-disease (LD) patients and 73 (65.8%) extensive-disease (ED) patients. The majority were current or former smokers (94.7% among LD and 94.5% among ED). More patients with LD had good performance status (92% versus 63%, P = 0.0003) and were treated with combined chemotherapy and radiotherapy (82% versus 48%, P = 0.012). The median survival time of LD patients treated with curative chemoradiotherapy was 14.2 months (95% CI, 10.96 to 17.44). Those given prophylactic cranial irradiation had a median survival time of 16.9 months (95% CI, 11.83 to 21.97). For ED patients, the median survival time was 8.17 months (95%CI, 5.44 to 10.89). None of the factors analysed were significant prognostic factors for LD patients while performance status and type of treatment given were significant among ED patients.
CONCLUSIONSWe found that the characteristics and survival of SCLC patients in Singapore are fairly similar to that of other countries.
Aged ; Carcinoma, Small Cell ; mortality ; therapy ; Combined Modality Therapy ; Female ; Humans ; Lung Neoplasms ; mortality ; therapy ; Male ; Middle Aged ; Prognosis ; Retrospective Studies ; Singapore ; epidemiology
2.Phase II trial of gemcitabine in combination with cisplatin in inoperable or advanced hepatocellular carcinoma.
Whay Kuang CHIA ; Simon ONG ; Han Chong TOH ; Siew Wan HEE ; Su Pin CHOO ; Donald Y H POON ; Miah Hiang TAY ; Chee Kiat TAN ; Wen Hsin KOO ; Kian Fong FOO
Annals of the Academy of Medicine, Singapore 2008;37(7):554-558
INTRODUCTIONAdvanced hepatocellular carcinoma (HCC) has a dismal prognosis and is notoriously chemo-resistant. We conducted a Phase II prospective study to evaluate the activity and tolerability of gemcitabine and cisplatin in chemo-naïve advanced hepatocellular carcinoma. The trial considered a "no further interest" response rate of 10% and a target response rate of 30%. Utilising a Simon's minimax two-stage design with a type I error of 0.05 and power of 80%, 25 subjects would be required. Fifteen patients would be needed in stage 1 and if fewer than 2 responses were observed, the trial would be stopped and lack of efficacy claimed.
MATERIALS AND METHODSPatients with advanced HCC, diagnosed based on histology or by World Health Organization (WHO) criteria, were administered gemcitabine 1000 mg/m2 and cisplatin 25 mg/m2 on day 1 and day 8 of a 21-day schedule. Assessment of response based on computer tomography was performed after every 2 cycles of chemotherapy.
RESULTSThe trial was stopped early due to a lack of efficacy. A total of 15 patients were accrued. Twelve patients were hepatitis B positive and the other 3 patients were negative for both hepatitis B and C. Only 1 patient had a history of prior heavy alcohol use. Two patients had Child C liver cirrhosis, 5 patients had Child B cirrhosis, and the remaining 8 patients had Child A cirrhosis. This regime was well tolerated and there was only 1 patient who experienced grade IV toxicities. Only 5 of 15 patients experienced grade III toxicities (nausea and emesis, 1 patient; anemia, 1 patient; thrombocytopenia, 1 patient; and neutropaenia, 2 patients). Only 1 patient experienced a partial response to the combination of gemcitabine and cisplatin. A further 3 patients experienced stable disease and 11 patients progressed on chemotherapy. The median time to progression was 6 weeks. The progression-free curve showed a sharp descent in the initial part of the study, suggesting that many patients had disease progression after enrollment. The median overall survival was 18 weeks.
CONCLUSIONThe progression-free survival and overall survival in our study were extremely short. Based on the results of our phase 2 study, we are unable to recommend further studies utilising gemcitabine and cisplatin combination in patients with advanced HCC.
Adult ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Carcinoma, Hepatocellular ; drug therapy ; etiology ; Cisplatin ; administration & dosage ; Deoxycytidine ; administration & dosage ; analogs & derivatives ; Disease-Free Survival ; Female ; Humans ; Liver Neoplasms ; drug therapy ; etiology ; Male ; Middle Aged ; Prospective Studies ; Time Factors ; Treatment Outcome
3.Induction concurrent chemoradiotherapy using Paclitaxel and Carboplatin combination followed by surgery in locoregionally advanced non-small cell lung cancer--Asian experience.
Swee-Peng YAP ; Wan-Teck LIM ; Kian-Fong FOO ; Siew-Wan HEE ; Swan-Swan LEONG ; Kam-Weng FONG ; Philip ENG ; Anne Al HSU ; Joseph Ts WEE ; Thirugnanam AGASTHIAN ; Heng-Nung KOONG ; Eng-Huat TAN
Annals of the Academy of Medicine, Singapore 2008;37(5):377-382
INTRODUCTIONIt has been established that combined chemoradiotherapy treatment benefits selected patients with stage III Non Small Cell Lung Cancer (NSCLC). However, locoregional recurrence still poses a problem. The addition of surgery as the third modality may provide a possible solution. We report our experience of using the triple-modality approach in this group of patients.
MATERIALS AND METHODSThis is a retrospective review of 33 patients with stage III NSCLC treated between 1997 and 2005. Patients have good performance status and no significant weight loss. There were 26 males (79 %) with median age of 63 years (range, 43 to 74) and median follow-up of 49 months. Seventy-six percent had Stage IIIA disease. Chemotherapy consisted of paclitaxel at 175 mg/m2 over 3 hours followed by carboplatin at AUC of 5 over 1 hour. Thoracic radiotherapy was given concurrently with the second and third cycles of chemotherapy. All patients received 50 Gray in 25 fractions over 5 weeks.
RESULTSThe main toxicities were grade 3/4 neutropenia (30%), grade 3 infection (15 %) and grade 3 oesophagitis (9%). Twenty-five patients (76%) underwent surgery. Of the 8 who did not undergo surgery, 1 was deemed medically unfit after induction chemoradiotherapy and 4 had progressive disease; 3 declined surgery. Nineteen patients (58 %) had lobectomy and 6 had pneumonectomy. The median overall survival was 29.9 months and 12 patients are still in remission.
CONCLUSIONThe use of the triplemodality approach is feasible, with an acceptable tolerability and resectability rate in this group of patients.
Adult ; Aged ; Antineoplastic Combined Chemotherapy Protocols ; adverse effects ; therapeutic use ; Carboplatin ; adverse effects ; therapeutic use ; Carcinoma, Non-Small-Cell Lung ; surgery ; therapy ; Female ; Humans ; Kaplan-Meier Estimate ; Male ; Middle Aged ; Neoadjuvant Therapy ; Neoplasm Staging ; Paclitaxel ; adverse effects ; therapeutic use ; Pneumonectomy ; Radiotherapy, Adjuvant ; Retrospective Studies