Efficacy study of metronomic chemotherapy in metastatic NSCLC.

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. e19092-e19092
Author(s):  
B. J. Srinivas ◽  
Nayak Radheshyam ◽  
C. Gunasagar ◽  
Eriat Govind ◽  
Veldore H. Vidya ◽  
...  

e19092 Background: Metastatic lung cancer patients are at best treated palliatively. We evaluated the effects of metronomic chemotherapy on survival outcomes in this population. Methods: Thirty four subjects with treatment refractory (n=26) and treatment naive (n=7) metastatic lung cancer were included in a open label single arm efficacy study of metronomic chemotherapy. Patients were given a chemotherapy regimen of Tab. Cyclophsophamide 50 mg once daily and cap. etoposide 50 mg once daily, 3 weeks on and one week off in 28 day cycle over a minimum period of 3 months or until the progression of their disease whichever was earlier. Patients were assessed for treatment response using RECIST criteria (version 1.1) and duration of progression free survival and overall survival. Data were analysed using Kaplan Meier survival analysis. Results: The mean age of the study population was 63.4 ±11.2 years. The mean duration of metronomic chemotherapy was 94.9 ±60.4 days. Overall 64.7% had progressive disease and 26.5% had stable disease. There was a significant improvement in overall survival in those with ECOG performance status of 1 compared to ECOG status of 2 (median survival =240 vs.52 days, Log Rank Mantel Cox =11.32, p=0.001) and pathology grade 2 compared to grade 3 (median survival =200 vs. 37 days, Breslows Wilcoxon =5.76, p=0.02) and stable disease on RECIST compared to progressive disease following metronomic chemotherapy (Median survival =360 vs. 50 days, Log Rank Mantel Cox =8.68, p=0.003). There was also a significant improvement in progression free survival in those with ECOG performance status of 1 compared to ECOG status of 2 (median survival =98 vs. 52 days, Log Rank Mantel Cox =6.62, p=0.001) and in grade 2 compared to grade 3 disease (mean survival =97 vs.32 days, Log Rank Mantel Cox =4.73, p=0.03). Tumor load and multiple organ sites of disease did not seem to influence survival. Conclusions: The results suggest stable response in about one third of study population, favorable progression free and overall survival rates following metronomic chemotherapy. Performance status is important predictors in this category of population.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 6515-6515 ◽  
Author(s):  
Christine H. Chung ◽  
Marcelo Raul Bonomi ◽  
Conor Ernst Steuer ◽  
Michael J. Schell ◽  
Jiannong Li ◽  
...  

6515 Background: While anti-Programmed Death-1 (anti-PD-1) inhibitors have efficacy, only some patients (pts) with R/M HNSCC achieve clinically significant benefits. We designed the study to determine the 1-year overall survival (OS) rate of concurrent CTX and NIVO in patients who had progressed on at least one prior treatment for their R/M HNSCC. Methods: Pts were treated with CTX 500 mg/m2 IV on Day (D) -14 as a lead-in followed by CTX 500 mg/m2 IV and NIVO 240 mg/m2 IV on D1 and D15 every 28-D cycle (C). Pts with CTX infusion reaction or who did not receive C1D1 for any reason were non-evaluable and replaced. NIVO dose reduction was not allowed but withheld/discontinued based on adverse event (AE) severity. Results: Total 47 pts are enrolled. 2 pts are non-evaluable. 45 evaluable pts are analyzed. Median age is 64 (24-77). ECOG performance status at baseline is 0 (9, 20%), 1 (33, 73%), and 2 (3, 7%). Primary sites are oral cavity 10 (22%), oropharynx 24 (53%), hypopharynx 3 (7%), larynx 6 (13%), and unknown primary 2 (4%). p16 status is available in 33 (73%). Prior treatments before the study enrollment are: chemotherapy (CT) 42 (93%), no CT 3 (7%), radiotherapy (RT) 38 (84%), no RT 7 (16%), checkpoint inhibitors (CPI) 23 (51%), and no CPI 22 (49%). PD-L1 combined positive scores (CPS) is available in 30 (67%). Median follow up time for overall survival (OS) is 12.6 months. The most common grade 3 treatment-related AE (TRAE) occurring ≥2 are fatigue 6 (13%) and rash-acneiform 2 (4.4%). The only grade 4 TRAE is CTX infusion reaction in 1 (2.2%). The most common grade 3 immune-related AE (IRAE) occurring ≥2 is fatigue 3 (6.7%). No grade 4 IRAE is observed. The median progression-free survival (PFS) and median OS are summarized in Table. Pts with no prior exposure to CPI have favorable PFS and OS relative to pts with prior CPI (PFS: HR 0.49, 95% CI 0.25-0.97, p=0.04 and OS: HR 0.5, 95% CI 0.22-1.14, p=0.09). Conclusions: Our data suggest the combination of CTX and NIVO is active in pts without prior CPI exposure and overall well tolerated in all pts. These preliminary results support further evaluation of the combination in CPI naïve pts. Clinical trial information: NCT03370276 . [Table: see text]


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 9000-9000
Author(s):  
Martin Reck ◽  
Tudor-Eliade Ciuleanu ◽  
Manuel Cobo ◽  
Michael Schenker ◽  
Bogdan Zurawski ◽  
...  

9000 Background: In the randomized phase 3 CheckMate 9LA trial (NCT03215706), first-line NIVO + IPI combined with 2 cycles of chemo significantly improved overall survival (OS), progression-free survival (PFS), and objective response rate (ORR) vs chemo alone (4 cycles). Clinical benefit was observed regardless of programmed death ligand 1 (PD-L1) expression level and histology. Here we report data with 2 years’ minimum follow-up from this study. Methods: Adult patients (pts) with stage IV / recurrent NSCLC, ECOG performance status ≤ 1, and no known sensitizing EGFR/ALK alterations were stratified by PD-L1 (< 1% vs ≥ 1%), sex, and histology (squamous vs non-squamous) and were randomized 1:1 to NIVO 360 mg Q3W + IPI 1 mg/kg Q6W + chemo (2 cycles; n = 361) or chemo alone (4 cycles; n = 358). Pts with non-squamous NSCLC in the chemo-alone arm could receive pemetrexed maintenance. The primary endpoint was OS. Secondary endpoints included PFS and ORR by blinded independent central review, and efficacy by different PD-L1 levels. Safety was exploratory. Results: At a minimum follow-up of 24.4 months for OS (database lock: Feb 18, 2021), pts treated with NIVO + IPI + chemo continued to derive OS benefit vs chemo, with a median OS of 15.8 months vs 11.0 months, respectively (HR, 0.72 [95% CI, 0.61–0.86]); 2-year OS rates were 38% vs 26%. Median PFS with NIVO + IPI + chemo vs chemo was 6.7 months vs 5.3 months (HR, 0.67 [95% CI, 0.56–0.79]); 8% and 37% of pts who had disease progression received subsequent immunotherapy, respectively. ORR was 38% with NIVO + IPI + chemo vs 25% with chemo. Similar clinical benefit with NIVO + IPI + chemo vs chemo was observed in all randomized pts and across the majority of subgroups, including by PD-L1 expression level (Table) or histology. Any grade and grade 3–4 treatment-related adverse events were reported in 92% and 48% of pts in the NIVO + IPI + chemo arm vs 88% and 38% in the chemo arm, respectively. Conclusion: With 2 years’ minimum follow-up, first-line NIVO + IPI + chemo demonstrated durable survival and benefit versus chemo in pts with advanced NSCLC; no new safety signals were identified. Clinical trial information: NCT03215706. [Table: see text]


2021 ◽  
Vol 39 (3_suppl) ◽  
pp. 71-71
Author(s):  
Azim Jalali ◽  
Hui-Li Wong ◽  
Rachel Wong ◽  
Margaret Lee ◽  
Lucy Gately ◽  
...  

71 Background: For patients with refractory metastatic colorectal cancer (mCRC) treatment with Trifluridine/Tipiracil, also known as TAS-102, improves overall survival. In Australia, TAS-102 was initially made available locally through patients self-funding, later via an industry sponsored Medicine Access Program (MAP) and then via the Pharmaceutical Benefits Scheme (PBS). This study aims to investigate the efficacy and safety of TAS-102 in real world Australian population. Methods: A retrospective analysis of prospectively collected data from the Treatment of Recurrent and Advanced Colorectal Cancer (TRACC) registry was undertaken. The characteristics and outcomes of patients receiving TAS-102 were assessed and compared to all TRACC patients and those enrolled in the registration study (RECOURSE). Results: Across 13 sites, 107 patients were treated with TAS-102 (non-PBS n = 27, PBS n = 80), The median number of patients per site was 7 (range: 1-17). The median age was 60 years (range: 31-83), compared to 67 for all TRACC patients and 63 for RECOURSE. Comparing registry TAS-102 and RECOURSE patients, 75% vs 100% were ECOG performance status 0-1, 74% vs 79% had initiated treatment more than 18 months from diagnosis of metastatic disease and 39% vs 49% were RAS wild type. Median time on treatment was 10.4 weeks (range: 1.7-32). Median clinician assessed progression-free survival was 3.3 compared to RECIST defined PFS of 2 months in RECOURSE study, while median overall survival was the same at 7.1 months. Two patients (2.3%) had febrile neutropenia and there were no treatment-related deaths in the real-world series, where TAS102 dose at treatment initiation was at clinician discretion. In the RECOURSE study there was a 4% febrile neutropenia rate and one treatment-related death. Conclusions: TRACC registry patients treated with TAS102 were younger than both TRACC patients overall and those from the RECOURSE trial. Less strict application of RECIST criteria and less frequent imaging may have contributed to an apparently longer PFS. However overall survival outcomes achieved with TAS102 in real world patients were comparable to findings from this pivotal trial with an acceptable rate of major adverse events.


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 8505-8505
Author(s):  
Jeffrey A Bogart ◽  
Xiaofei F. Wang ◽  
Gregory A. Masters ◽  
Junheng Gao ◽  
Ritsuko Komaki ◽  
...  

8505 Background: Although level 1 evidence is lacking, the majority of patients (pts) with LSCLC are treated with a high dose QD TRT regimen in clinical practice. CALGB 30610/RTOG 0538 was designed to determine if administering high dose TRT would improve overall survival (OS), compared with standard 45 Gy BID TRT, in LSCLC pts treated with chemoradiotherapy. Methods: Eligible pts had LSCLC, ECOG performance status (PS) 0-2 and regional lymph node involvement excluding contralateral hilar or supraclavicular nodes. This phase 3 trial was conducted in 2 stages. In the first stage, pts were randomized 1:1:1 to 45 Gy BID over 3 weeks, 70 Gy QD over 7 weeks, or 61.2 Gy concomitant boost (CB) over 5 weeks. For the second stage, the study planned discontinuation of one high dose arm based on interim toxicity analysis with patients then randomized 1:1 in the two remaining arms. TRT was given starting with either the 1st or 2nd (of 4 total) chemotherapy cycles. The primary endpoint was OS measured from date of randomization. Results: The trial opened 03/15/2008 and closed 12/01/2019 upon completing accrual, with the CB arm discontinued 3/11/2013 after interim analysis. This analysis includes 638 pts randomized to 45 Gy BID TRT (n = 313) or 70 Gy QD TRT (n = 325). Median age was 63 years (range 37-81), the majority of pts were Caucasian (86%), female (52%), and with ECOG PS 0-1 (95%). After median follow-up of 2.84 years (IQR:1.35 -5.61) for surviving pts, QD compared to BID did not result in a significant difference in OS (HR 0.94, 95% CI: 0.76-1.2, p = 0.9). Median, 2- and 4-year OS for QD were 30.5 months (95% CI: 24.4-39.6), 56% (95% CI: 0.51-0.62), and 39% (95% CI: 0.33-0.45), and for BID 28.7 months (95% CI: 26.2-35.5), 59% (95% CI: 0.53-0.65), and 35% (95% CI: 0.29-0.42). QD also did not result in a significant difference in PFS (HR 0.96, 95% CI: 0.78-1.18, p = 0.94). Most grade 3+ hematologic and non-hematologic adverse events (AEs) were similar between cohorts. Rates of grade 3+ febrile neutropenia, dyspnea, esophageal pain and dysphagia for QD were 12.6%,7%, 11.6% and 11.3%, and for BID 13.6%, 4%, 11.2 % and 9.5%. Grade 5 AEs were reported in 3.7% and 1.7% of the QD and BID cohorts, respectively. Results will be updated at presentation. Conclusions: High dose QD TRT to 70 Gy did not significantly improve OS compared with standard 45 Gy BID TRT. Nevertheless, favorable outcomes on the QD arm provide the most robust evidence available supporting high dose once-daily TRT as an acceptable option in LSCLC. Outcomes from this study, the largest conducted in LSCLC to date, will help guide TRT decisions for this patient population. Support: U10CA180821, U10CA180882; Clinical trial information: NCT00632853.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Florence Chamberlain ◽  
Sheima Farag ◽  
Constance Williams-Sharkey ◽  
Cecilia Collingwood ◽  
Lucia Chen ◽  
...  

Abstract Background Regorafenib is a multi-kinase inhibitor approved as third line treatment for metastatic GIST. Dose limiting toxicities are frequently seen and many patients require dose reductions. This study aimed to evaluate regorafenib toxicities and their management in a real-world GIST population. Methods Retrospective review of a prospectively maintained database identified 50 patients with GIST treated with regorafenib at our centre between March 2013 and September 2018. Results Median progression free survival (PFS) was 7.7 months [interquartile range (IQR) 2.8–14.4 months]. Median overall survival (OS) from start of regorafenib to death or last follow up was 15.7 months (IQR 9.2–28.4 months). Baseline median Eastern Cooperative Oncology Group (ECOG) performance status on starting regorafenib was 1. The main reason for discontinuing regorafenib was progressive disease (PD) (31/50 [62%]) rather than toxicity (10/50 [20%]). Grade 3–4 adverse events (AEs) were seen in 23/50 (46%) patients; palmar-plantar erythrodysesthesia (PPE) was most frequently seen (9/50 (18%)). Two patients died whilst on treatment with regorafenib from multi-organ failure secondary to sepsis (4%). Dose reductions were required in 19/50 patients (38%) and 8/50 (16%) patients started regorafenib at a lower dose band than the recommended dose (160 mg) due to comorbidities or concern over a higher individual risk of toxicity. Conclusion Although PD was the main reason for discontinuing treatment, toxicity management and dosing of regorafenib remains critical. Median duration of treatment was longer compared to previous studies suggesting a durable clinical benefit with regorafenib with rigorous toxicity management.


2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 7033-7033
Author(s):  
N. Helbekkmo ◽  
S. H. Sundtroem ◽  
U. Aaseboe ◽  
P. F. Brunsvig ◽  
C. L. Von Plessen ◽  
...  

7033 Background: Carboplatin/vinorelbine (CV) and carboplatin/gemcitabine (CG) are novel 2-drug combinations in the treatment of NSCLC. In a randomized national multicenter phase III study in stage IIIB and IV patients (pts), we compared these regimens with respect to efficacy, toxicity and quality of life (QoL). Methods: Chemonaive pts with histologically or cytologically proven NSCLC, stage IIIB or IV and ECOG performance status (PS) 0–2 were eligible. There was no upper age limit. Pts received vinorelbine 25 mg/m2 or gemcitabine 1000 mg/m2, both administered on day 1 and 8, in combination with carboplatin (Chatelut AUC 4) at day 1. Three courses were administered in 3-week cycles. QoL questionnaires were completed at baseline, before each cycle and then every 8 weeks up to one year. Primary endpoints were survival and QoL and secondary endpoints toxicity and time to progression (TTP). Stratification was done for age, stage and PS, and the planned sample size per arm was minimum 200. The analyses were performed on an intention-to-treat basis Results: From Oct 2003 through Dec 2004, 433 pts from 33 institutions were randomized to CV (n=218) or CG (n=215). Follow-up was minimum one year. There was no difference in overall survival between the two arms (p=0.89). Median survival was 7.3 vs. 6.5 months and 1-year survival 28% and 31% in the CV and CG arm respectively. TTP was significantly longer in the CG arm (p=0.006) with median TTP 4.2 vs. 3.9 months. There was significantly more grade 3–4 anemia and thrombocytopenia in the CG arm (p<0.001) and more grade 3–4 leucopenia in the CV arm (p= 0.001). More pts in the CG arm needed transfusions of blood (p=0.003) or platelets (p=0.001). There was no difference between the arms with respect to neutropenic infections (p=0.87). QoL data are still being analyzed and will be presented at ASCO. Conclusions: Overall survival was similar in the two treatment arms. In the CG arm, the median TTP was longer, but grade 3–4 toxicity requiring interventions, was more frequent when compared to the VC arm. No significant financial relationships to disclose.


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 4601-4601 ◽  
Author(s):  
T. Buanes ◽  
J. Maurel ◽  
W. Liauw ◽  
M. Hebbar ◽  
J. Nemunaitis

4601 Background: A phase I/II study with GV1001, a telomerase peptide vaccine, showed a median overall survival (OS) of 8.6 months in non-resectable PC (Bernhardt SL et al, Br J Cancer. 2006;95:1474–1482). This phase III trial was conducted to determine the impact on overall survival of G monotherapy vs. GV1001 in sequential combination with G in unresectable and metastatic PC. Methods: Eligible patients (pts) had chemotherapy-naive, advanced PC and ECOG performance status 0–1. Pts were randomized 1:1 to receive arm A: G (1,000 mg/m2 30 min i.v.) weekly for 7 weeks (w), 1w off and then 3w during 4-weekly cycles, or arm B: GV1001 0.56 mg s.c. plus GM-CSF as immune adjuvant on days 1, 3, 5, 8, 15, 22, 36, then every 4 weeks. Patients who progressed clinically or radiologically during GV1001 continued on GV1001 and concomitant gemcitabine. CT scans were performed every 8 weeks. The primary end-point was OS. A sample size of 520 patients allowed the detection of a hazard ratio (HR) of 0.73 (B/A), with 2α = 0.05 and 90% power. Results: Between June 2006 and May 2008, 365 pts were enrolled (A / B; 182 / 183). The study was stopped prematurely due to a preliminary analysis with 178 events showing no survival benefit of GV1001. Pts were well balanced for baseline characteristics: male 59.3% / 62.8%; median age 61y / 61y; ECOG PS 0 34.3% / 36.7%; locally advanced 22.4% / 20.7%. As of August 2008, 238 pts (A / B : 114 / 124) had died. Median OS was 7.3 / 5.9 months (HR 0.8; 95% CI 0.6–1.0). Median progression-free survival (PFS) was 3.7 / 1.9 months (HR 0.5; 95%CI 0.4–0.7). Grade 3–4 AEs: gastrointestinal 6% / 8%, infection 5% / 5%, vascular disorders 2% / 3%, neutropenia 6% / 3%. Conclusions: GV1001 did not show efficacy in sequential combination with G in advanced PC. The advantage of G monotherapy over the sequential combination may be due to the delayed treatment with G in arm B. [Table: see text]


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 5040-5040
Author(s):  
J. Bellmunt ◽  
J. Trigo ◽  
E. Calvo ◽  
J. Carles ◽  
J. Perez-Gracia ◽  
...  

5040 Background: Maximal tolerated dose (MTD) chemotherapy followed by metronomic chemotherapy (low doses administered on a frequent schedule) acts on tumor vascular endothelial cells and enhances the antitumor effect of anti-angiogenic agents (Pietras et al. J Clin Oncol. 2007). This study investigated treatment of mRCC with Gem at MTD combined with metronomic Cap and the multikinase inhibitor sorafenib. Methods: Eligible patients had cytologically or histologically confirmed mRCC, Eastern Cooperative Oncology Group (ECOG) performance status ≤1 and no previous targeted therapy or chemotherapy, and were unsuitable for or intolerant to immunotherapy. Treatment consisted of six 3-week cycles of Gem 1000 mg/m2 i.v. (days 1 and 8), oral Cap 500 mg/m2 b.i.d. (days 1 to 14) and oral sorafenib 400 mg b.i.d. (every day), followed by sorafenib monotherapy (at the discretion of the investigator). Study endpoints included median progression-free survival (PFS, primary endpoint), disease control rate according to Response Evaluation Criteria in Solid Tumors, and safety. Results: Forty patients were enrolled and received at least one dose of treatment (median age 63 yrs, male n = 24, ECOG 0/1 n = 18/22, 1–2/>2 metastatic sites n = 31/9). Median duration of treatment was 6 months. Among 36 evaluable patients, 17 (47%) had a partial response and 17 (47%) achieved stable disease. Median PFS was 10.2 months (95% CI 7.6, 20.5). The most common adverse events (AEs) were fatigue/asthenia (78%) hand-foot syndrome (75%) and mucositis (69%). Most AEs were grade1/2, no grade 4 toxicities occurred. One patient had grade 5 dyspnea; 6 patients discontinued treatment for AEs. Conclusions: PFS and objective responses in this study were greater than those observed in previous studies with Gem and Cap or sorafenib monotherapy in patients with mRCC, while AEs remained moderate in the majority of patients. These findings confirm the synergistic activity of the “chemo-switch” concept seen in preclinical models. The combination of sorafenib with MTD Gem and metronomic Cap warrants further investigation in mRCC. [Table: see text]


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 7565-7565
Author(s):  
Shunichi Sugawara ◽  
Makoto Maemondo ◽  
Toshiyuki Harada ◽  
Akira Inoue ◽  
Nobumichi Matsubara ◽  
...  

7565 Background: Standard first-line chemotherapy for elderly NSCLC pts has been considered as a monotherapy with vinorelbine or gemcitabine globally. However, we have demonstrated the high efficacy of CP for elderly pts in our previous trial (Ann Oncol 2010). Meanwhile, D has been considered as an alternative option for this population in Japan according to the result of WJTOG9904 (JCO 2006). Thus we compared the two regimens to select the proper candidate for future phase III trial. Methods: Eligible pts were aged 70 years or older with newly diagnosed stage IIIB/IV NSCLC; ECOG performance status 0-1; adequate organ function; written informed consent. Pts were randomized to receive carboplatin (AUC 6) on day 1 and paclitaxel (70mg/m2 on day 1, 8, and 15) every 4 weeks or D (60mg/m2 on day 1) every 3 weeks. The primary endpoint was overall response rate (ORR), and secondary endpoints were progression-free survival (PFS), overall survival, and toxicity profile. Assuming that ORR of 40% would be potential usefulness while ORR of 20% would be the lower limit of interest, 40 pts in each arm were required if expect 10% loss to follow up. Results: Between July 2006 and September 2010, 84 pts were enrolled and 41 pts in CP arm and 42 pts in D arm were eligible (median age, 76 years; 75% male; 72% stage IV). Median treatment cycle was 4 in each arm (CP, range 1-6; D, range 1-8). ORRs were 51% (95%CI: 36-66%) and 26% (95%CI: 12-39%) in the CP and D arm, respectively. With a median follow-up of 18.4 months, median PFS were 6.5 and 3.9 months in the CP and D arm, respectively (Logrank, P=0.0027). Grade 3 or severer toxicities were as follows: neutropenia (CP, 56% and D, 79%), anemia (CP, 15% and D, 7%), thrombocytopenia (CP, 10% and D, 0%), infection (CP, 20% and D, 25%). One treatment-related death due to neutropenia, pneumonia, and lethal arrhythmia occurred in D arm but none in CP arm. Conclusions: The platinum doublet CP achieved higher activity with an acceptable toxicity profile for elderly pts with advanced NSCLC compared to monotherapy with D. The superiority of CP to the monotherapy in this trial is consistent with results of recent IFCT-0501 trial (Lancet 2011).


2013 ◽  
Vol 31 (15_suppl) ◽  
pp. e18546-e18546
Author(s):  
Zuhat Urakci ◽  
Muhammet Ali Kaplan ◽  
Olcun Umit Unal ◽  
Mehmet Kucukoner ◽  
Alper Sevinc ◽  
...  

e18546 Background: Small cell lung cancers (SCLC) constitute a mean of 15% of lung cancers and present with advanced disease at time of diagnosis in 60% of cases. Cisplatin plus etoposide schedule is the standard treatment in these patients , whereas the role of maintenance therapy is debated. We assessed the efficacy and safety of oral etoposide maintenance therapy following cisplatin plus etoposide in advanced SCLC. Methods: Demographic features, treatment response, survival rate, and toxicity rate were assessed in our patients who were followed up for advanced SCLC between 2006 and 2012, had a ECOG performance status of 0-1, and were given oral etoposide maintenance therapy (50mg/day, given 14 days of a 21-day cycle, a total of 6 cycles) following 6 courses of cisplatin (75 mg/m2, 1 day) and etoposide (100mg/m2, 3 days). Results: A total of 51 patients were studied, 46 (90.2%) of whom were male; the mean age was 59 (28-78) years at diagnosis. Forty-four (86.2%) patients had partial remission while 7 (13.7%) had complete remission. Nine (17.6%) developed neutropenic fever while grade 3-4 toxicities, neutropenia, anemia, thrombocytopenia, neuropathy, diarrhea, nausea and vomiting were present in 39.2%, 9.8%, 5.9%, 1.9%, 3.9%, 3.9%, and 1.9% respectively. Chemotherapy was postponed in fourteen (27.4%) patients due to toxicity. Six (11.7%) patients taking oral etoposide developed febrile neutropenia and 3 (5.9%) developed grade 3-4 thrombocytopenia. Chemotherapy was postponed in 5 (9.8%) patients due to toxicity while no toxic death was observed. After a median follow-up of 19 months, 32 (62.7%) patients experienced progression of disease and 29 (56.8%) died. Median progression free survival was found 11.6 months (%95 CI; 10.2-12.9 months) and median overall survival was found 15.6 (%95CI; 11.5-19.7 months) months. Conclusions: Our results were similar with the previous literature. Oral etoposide maintenance therapy following cisplatin plus etoposide therapy in advanced SCLC is effective and tolerable. Further randomized studies are needed in this topic.


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