A randomized phase III trial of single-agent pemetrexed (P) versus carboplatin and pemetrexed (CP) in patients with advanced non-small cell lung cancer (NSCLC) and performance status (PS) of 2.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 7506-7506 ◽  
Author(s):  
Rogerio Lilenbaum ◽  
Mauro Zukin ◽  
Jose Rodrigues Pereira ◽  
Carlos H. Barrios ◽  
Ronaldo De Albuquerque Ribeiro ◽  
...  
Keyword(s):  
Combination Chemotherapy ◽  
Advanced Nsclc ◽  
Performance Status ◽  
Single Agent ◽  
Survival Rates ◽  
Standard Of Care ◽  
Patient Characteristics ◽  
Phase Iii ◽  
And Performance ◽  
Nsclc Patients

7506 Background: No standard of care exists for patients with advanced NSCLC and PS 2 and clinical practice ranges from supportive care to combination chemotherapy. Methods: In a Brazilian multicenter phase III randomized trial, advanced NSCLC patients, with any histology at first, amended to non-squamous only, PS 2, no prior chemotherapy, and adequate organ function, were randomized to P alone (500 mg/m2) or CP (AUC 5 + same P) administered every 3 weeks for 4 cycles. Stratification factors included stage (IIIB vs. IV); age (≥70 vs. <70); and weight loss (≥5 kg vs. <5kg). The primary endpoint was overall survival and the study was powered to demonstrate an improvement in median survival from 2.9 to 4.3 months based on a prior CALGB trial. Results: A total of 217 patients were enrolled from 8 centers in Brazil and 1 in the US from April 2008 to July 2011. Twelve patients were ineligible and excluded. The 2 arms (P=102; CP=103) were balanced for patient characteristics. 14 patients had squamous and another 12 had unknown histology. The response rates were P = 10% and CP = 24% (p=0.019). In the ITT population, the median PFS was P = 3.0 mo and CP = 5.9 mo (HR=0.46, 95% CI 0.34; 0.63, p<0.001) and median OS was P = 5.6 mo vs. CP = 9.1 mo (HR=0.57, 95% CI 0.41; 0.79, p=0.001). 1-year survival rates were 22% and 39% respectively. Similar results were seen when squamous patients were excluded from the analysis. Grade ¾ anemia (5.5%; 12%) and neutropenia (2.8%; 5.6%) were more frequent in CP. There were 4 treatment-related deaths in the CP arm. 30% of patients in each arm received 2nd line therapy Conclusions: Combination chemotherapy with CP significantly improves survival, with acceptable safety, in eligible patients with advanced NSCLC and PS 2, and represents a new standard.

Randomized phase III trial of gemcitabine and cisplatin versus gemcitabine alone in patients with advanced non-small cell lung cancer (NSCLC) and a performance status (PS) 2: CAPPA-2 study.

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 8066-8066
Author(s):  
Alessandro Morabito ◽  
Vittorio Gebbia ◽  
Saverio Cinieri ◽  
Maria Grazia Viganò ◽  
Roberto Bianco ◽  
...  
Keyword(s):  
Advanced Nsclc ◽  
Performance Status ◽  
Single Agent ◽  
Stage Iv ◽  
Phase Iii ◽  
Line Treatment ◽  
First Line ◽  
Platinum Based Chemotherapy ◽  
Nsclc Patients ◽  
First Line Treatment

8066 Background: Platinum-based chemotherapy (CT) is the standard treatment for patients (pts) with advanced NSCLC, but the evidence of its efficacy among ECOG PS2 pts is weak, because these pts are usually excluded from clinical trials; concern exists about tolerability and feasibility of standard CT in these pts. No prospective randomized trial has tested the addition of cisplatin to single-agent CT in pts with advanced NSCLC and PS2. Methods: CAPPA-2 was a multicentre, randomized phase III study for first-line treatment of PS2 pts with advanced NSCLC. Patients, aged 18-70, were eligible if they had stage IV or IIIB with malignant pleural effusion or metastatic supraclavicular nodes (TNM VI ed.) and adequate organ function. Patients in standard arm received gemcitabine 1,200 mg/m2 dd1 and 8.Patients in experimental arm received cispaltin 60 mg/m2 d1 plus gemcitabine 1,000 mg/m2 dd1 and 8. All treatments were repeated q3w, up to 4 cycles, unless disease progression or unacceptable toxicity. Primary endpoint was overall survival (OS). To have 80% power of detecting hazard ratio (HR) 0.71, corresponding to an increase in median OS from 4.8 to 6.8 months, 285 deaths were required. Results: The study was stopped in June 2012 after the enrolment of 57 pts, due to the slow accrual and the report of positive results from a similar study. Median OS was 3.0 months with single-agent gemcitabine and 5.9 months with cisplatin + gemcitabine (HR 0.52, 95% CI 0.28-0.98, p=0.039). Combination CT produced longer PFS (median 1.7 vs. 3.3 months, HR 0.49, 95% CI 0.27-0.89, p=0.017) and higher response rate (4% vs. 18%, p=0.19), without substantial increase in toxicity. Conclusions: Addition of cisplatin to single-agent gemcitabine improves survival as first-line treatment of PS2 patients with advanced NSCLC. Clinical trial information: NCT00526643.

Single-agent compared to combination first-line chemotherapy in patients with advanced non-small cell lung cancer (NSCLC) and a performance status (PS) of 2

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 7637-7637
Author(s):  
P. Bonomi ◽  
V. M. Villaflor ◽  
F. B. Oldham ◽  
L. Sandilac ◽  
J. W. Singer
Keyword(s):  
Adverse Events ◽  
Combination Chemotherapy ◽  
Advanced Nsclc ◽  
Performance Status ◽  
Single Agent ◽  
Specific Treatment ◽  
Phase Iii ◽  
Serious Adverse Events ◽  
Single Agent Therapy ◽  
Single Agent Chemotherapy

7637 Background: Impaired performance status in NSCLC is associated with poor prognosis and reduced tolerance for treatment- related toxicities. Current treatment guidelines agree that PS 2 patients with advanced NSCLC benefit from systemic chemotherapy; however, no consensus exists on specific treatment recommendations; i.e., single-agent vs. combination chemotherapy. Methods: Two recent phase III randomized trials in advanced NSCLC (STELLAR 3 and 4) enrolled exclusively PS 2 patients and compared experimental treatment to either standard combination chemotherapy (paclitaxel/carboplatin; P/C), or single agent chemotherapy (vinorelbine or gemcitabine; V or G). An exploratory comparison of the control arms was performed to determine the degree of benefit and amount of added toxicity associated with standard combination vs. single agent chemotherapy. Results: Combination chemotherapy resulted in improved time to progression compared to single agent ( Table ). However, no statistical difference between treatment arms was noted for overall survival and 1-yr survival. Adverse events are listed in the table . Overall, the frequency of serious adverse events was 40% in the combination-arm and 35% in the single agent-arm. When only considering drug-related toxicities, the frequency of serious adverse events was 21% in the combination-arm and 5% in the single agent-arm. Conclusions: PS 2 patients receiving single agent chemotherapy have a similar outcome compared to those receiving combination chemotherapy; serious treatment related toxicities are less frequent with single agent therapy. Based on the currently available evidence, the use of single-agent therapy seems reasonable in PS 2 patients. [Table: see text] [Table: see text]

Long-term follow-up of a phase III intergroup study of cisplatin alone or in combination with methotrexate, vinblastine, and doxorubicin in patients with metastatic urothelial carcinoma: a cooperative group study.

1997 ◽  
Vol 15 (7) ◽  
pp. 2564-2569 ◽  
Author(s):  
S B Saxman ◽  
K J Propert ◽  
L H Einhorn ◽  
E D Crawford ◽  
I Tannock ◽  
...  
Keyword(s):  
Urothelial Carcinoma ◽  
Combination Chemotherapy ◽  
Performance Status ◽  
Single Agent ◽  
Phase Iii ◽  
Long Term Follow Up ◽  
Intergroup Trial ◽  
Advanced Urothelial Carcinoma

PURPOSE A previously reported randomized intergroup trial demonstrated that combination chemotherapy with methotrexate, vinblastine, doxorubicin, and cisplatin (M-VAC) was superior to single-agent cisplatin in patients with advanced urothelial carcinoma. We conducted a long-term analysis of patients included in the intergroup trial to examine factors associated with long-term survival. PATIENTS AND METHODS Two-hundred fifty-five assessable patients with urothelial carcinoma were randomized to receive either single-agent cisplatin (70 mg/m2 on day 1) or combination chemotherapy with methotrexate (30 mg/m2 on days 1, 15, and 22), vinblastine (3 mg/m2 on days 2, 15, and 22), doxorubicin (30 mg/m2 on day 2), and cisplatin (70 mg/m2 on day 2). Courses were repeated every 28 days. The association between patient characteristics and survival was assessed using Cox proportional hazards models. RESULTS With long-term follow-up evaluation, survival in the M-VAC arm continues to be superior to cisplatin (P = .00015, log-rank test). Predictors of survival include performance status, histology, and the presence of liver or bone metastasis. Only 3.7% of the patients randomized to M-VAC are alive and continuously disease-free at 6 years. CONCLUSION Long-term follow-up evaluation of the intergroup trial confirms that M-VAC is superior to single-agent cisplatin in patients with advanced urothelial carcinoma; however, durable progression-free survival is rare. Patients with non-transitional-cell histology, poor performance status, and/or bone or visceral involvement fare poorly and are unlikely to benefit significantly from M-VAC chemotherapy.

Serum cathepsin B (CB) levels are prognostic in chemotherapy-naive patients (pts) with advanced non-small cell lung cancer (NSCLC) and performance status (PS) of 2

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 18036-18036
Author(s):  
J. W. Singer ◽  
F. B. Oldham ◽  
B. Bandstra ◽  
L. Sandalic ◽  
J. Bianco ◽  
...  
Keyword(s):  
Median Survival ◽  
Advanced Nsclc ◽  
Performance Status ◽  
Phase Iii ◽  
Serum Samples ◽  
Protein Levels ◽  
Lysosomal Cysteine Protease ◽  
Phase Iii Trials ◽  
And Performance ◽  
The Impact

18036 Background: CB is an estrogen-influenced lysosomal cysteine protease produced by tumor cells and tumor-associated macrophages; tumor tissue CB protein levels and proteolytic activity are prognostic in NSCLC (Anticancer Res. 2004; 24:4147–61). The prognostic value of serum CB has not previously been evaluated in NSCLC. Here we evaluate the impact of pretreatment CB levels on survival in pts from 2 phase III trials in advanced NSCLC, STELLAR 3 and 4. These trials compared paclitaxel poliglumex (PPX) against commonly used regimens. As the intratumoral metabolic pathway of PPX is characterized by the CB-mediated release of paclitaxel (P) from a polymeric backbone (Ca Chemother Pharm. 2006. Epub ahead of print), correlation of CB levels with PPX efficacy was assessed as well. Methods: Pretreatment serum samples from 450 chemo-naive pts with advanced NSCLC and PS 2 enrolled in STELLAR 3 (P + carboplatin (C) v. PPX + C) (N=315) and STELLAR 4 (vinorelbine or gemcitabine v. PPX) (N=135) were assayed for CB by ELISA (ICON Labs). Values were assessed by quartiles and there was a clear breakpoint at the median. Pts were categorized as high or low CB based on values above or below the median (64 ng/ml). The effect of CB levels on survival was evaluated by log rank for pooled pts from the studies. Results: As detailed in the table , median survival for non-PPX-treated pts was worse if CB was high; in contrast, median survival for PPX-treated pts did not differ by CB level. Pts with high CB receiving PPX showed a trend towards better survival compared to those receiving control regimens. Conclusions: The data suggest that serum CB may be prognostic biomarker for NSCLC. Retrospective analysis suggests a trend towards improved survival in patients with high CB receiving PPX; prospective studies are required to confirm this observation. [Table: see text] No significant financial relationships to disclose.

Efficacy of the addition of cisplatin to single-agent first-line chemotherapy in elderly patients with advanced non-small cell lung cancer (NSCLC): A joint analysis of the multicenter, randomized phase III MILES-3 and MILES-4 studies.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. 9002-9002 ◽  
Author(s):  
Cesare Gridelli ◽  
Alessandro Morabito ◽  
Luigi Cavanna ◽  
Andrea Luciani ◽  
Paolo Maione ◽  
...  
Keyword(s):  
Elderly Patients ◽  
Advanced Nsclc ◽  
Response Rate ◽  
Performance Status ◽  
Single Agent ◽  
Phase Iii ◽  
Joint Analysis ◽  
Hematologic Toxicity ◽  
First Line ◽  
Single Agent Chemotherapy

9002 Background: The role of platinum in first line treatment of elderly patients with advanced NSCLC is still debated. We tested its efficacy in two parallel phase 3 trials. Methods: Advanced NSCLC patients, > 70 years, ECOG performance status 0-1, were eligible. In MILES-3 (started in 2011) patients with any tumor histology were randomly assigned 1:1 to cisplatin/gemcitabine (C 60 mg/m² d1, G 1000mg/m² dd1,8) or gemcitabine (G 1200 mg/m² dd1,8). In MILES-4 (started in 2013 with a factorial design) patients with non-squamous histology were randomly assigned 1:1:1:1 to CG, G, cisplatin/pemetrexed (C 60 mg/m² d1, P 500 mg/m² d1) or pemetrexed (P 500 mg/m² d1). Six cycles were planned. In each trial, to have 80% power in detecting a HR of death 0.75 (corresponding to 3-month prolongation of median survival), with 0.05 two-tailed α, 382 events were required. The two trials were closed prematurely because of slow accrual but a joint analysis allowed to properly perform the final analysis, according to IDMC advice. Analysis was based on intention-to treat and adjusted by possible confounding factors. Results: From Mar 2011 to Aug 2016, 531 patients (MILES-3: 299, MILES-4: 232) were assigned to cisplatin-doublet (n = 263) or single-agent chemotherapy (n = 268). Median age was 75, 79% were male, 70% had non-squamous histology. Median number of cycles was 4 and 3 with and without cisplatin, respectively. With a median follow-up of 2 years, 384 deaths and 448 progression-free survival (PFS) events were reported. With and without cisplatin, median OS was 9.6 vs 7.5 months (HR 0.86, 95% CI: 0.70-1.04, p = 0.14); median PFS was 4.6 vs 3.0 months (HR 0.76, 95% CI: 0.63-0.92, p = 0.005); response rate was 15.5% vs 8.5% (p = 0.02). Significantly more severe hematologic toxicity and fatigue were reported with cisplatin. Conclusions: Although improving PFS and response rate, addition of cisplatin to single-agent chemotherapy does not significantly prolong overall survival of elderly patients with advanced NSCLC. QOL data will be reported separately. Partially supported by AIFA (grant FARM8KAJZK) and Eli Lilly. Clinical trial information: NCT01405586 and NCT01656551.

ACELARATE: A phase III, open label, multicentre randomised clinical study comparing Acelarin (NUC-1031) with gemcitabine in patients with metastatic pancreatic carcinoma.

2018 ◽  
Vol 36 (4_suppl) ◽  
pp. TPS537-TPS537 ◽  
Author(s):  
Daniel H. Palmer ◽  
Paul J. Ross ◽  
Paul Silcocks ◽  
William Greenhalf ◽  
Olusola Olusesan Faluyi ◽  
...  
Keyword(s):  
Pancreatic Adenocarcinoma ◽  
Combination Chemotherapy ◽  
Performance Status ◽  
Single Agent ◽  
Active Agent ◽  
Phase Iii ◽  
Secondary Outcome ◽  
Open Label ◽  
Metastatic Pancreatic Adenocarcinoma ◽  
Phase Iii Study

TPS537 Background: Single agent gemcitabine still remains an appropriate choice for patients with metastatic pancreatic adenocarcinoma who are not suitable for combination therapy. Known resistance factors, such as low hENT1 and dCK, and CDA overexpression limit gemcitabine’s efficacy. NUC-1031 (Acelarin), is designed to overcome this resistance and deliver significantly higher intracellular levels of the active agent, dFdCTP, than gemcitabine. In Phase I studies Acelarin has shown activity in a range of metastatic cancers, including pancreatic, biliary and ovarian cancers. This Phase III study is designed to show superiority of Acelarin over gemcitabine in patients unsuitable for combination chemotherapy. Methods: To date, 85 patients have been randomised in this multicentre, Phase III study comparing Acelarin with gemcitabine first-line in patients with metastatic pancreatic adenocarcinoma. Patients must have a Performance Status of 0-2 and be unsuitable for combination chemotherapy. To detect a hazard ratio of 0.705 between the two arms, 270 events must be obtained from 328 patients, assuming a median survival of 6 months in the control arm. Currently, pts are being recruited at 27 centres. Patients receive either 825mg/m2 Acelarin or 1000mg/m2 gemcitabine on Day 1, 8 and 15 of a 28-day cycle until disease progression. The primary outcome measure is Overall Survival. Secondary outcome measures include Progression Free Survival, Response Rate, Disease Control Rate and Toxicity. Translational research will explore the use of biomarkers for predictive benefit of Acelarin over gemcitabine. Clinical trial information: ISRCTN16765355.

Treatment outcome in performance status 2 advanced NSCLC patients administered platinum-based combination chemotherapy

Lung Cancer ◽  
2008 ◽  
Vol 62 (2) ◽  
pp. 253-260 ◽  
Author(s):  
Nina Helbekkmo ◽  
Ulf Aasebø ◽  
Stein H. Sundstrøm ◽  
Christian von Plessen ◽  
Paal Fr. Brunsvig ◽  
...  
Keyword(s):  
Treatment Outcome ◽  
Combination Chemotherapy ◽  
Advanced Nsclc ◽  
Performance Status ◽  
Nsclc Patients

scholarly journals Pembrolizumab Alone or Combined With Chemotherapy in Advanced NSCLC With PD-L1 ≥50%: Results of a Retrospective Study

2021 ◽  
Vol 11 ◽  
Author(s):  
Ya Chen ◽  
Yanan Wang ◽  
Zhengyu Yang ◽  
Minjuan Hu ◽  
Yanwei Zhang ◽  
...  
Keyword(s):  
Overall Survival ◽  
Advanced Nsclc ◽  
Survival Rates ◽  
Progression Free Survival ◽  
Standard Of Care ◽  
Programmed Death ◽  
Platinum Based Chemotherapy ◽  
Prospective Trials ◽  
Nsclc Patients

ObjectivesPembrolizumab plus platinum-based chemotherapy and pembrolizumab monotherapy (PM) both become standard of care in patients with advanced non-small-cell lung cancer (NSCLC) and a programmed death ligand 1 (PD-L1) tumor proportion score (TPS) greater than 50%. This study aimed to figure out the better treatment choice.MethodIn this retrospective analysis, we compared the clinical efficacy of PM and PC as first-line treatment in NSCLC patients with a PD-L1 ≥50% and negative for genomic alterations in the EGFR and ALK genes.ResultAmong the population, 115 patients received PC, and 91 patients received PM. Up to Dec 30, 2020, median follow-up was 17.13 months. The median progression-free survival (PFS) rates of PC and PM were 12.37 and 9.60 months (HR: 0.44, p &lt; 0.001), respectively. The median overall survival (OS) rates were NE and 28.91 months (HR: 0.40, p = 0.005), respectively. Subgroup analysis found that the PFS benefit of PC was evident in most subgroups excepting patients with brain metastasis. The 1-year overall survival rates of PC and PM were 89.3% and 76.1%, respectively. The ORR was 61.7 and 46.9% (p = 0.004), respectively.ConclusionIn patients with previously untreated, PD-L1 ≥50%, advanced NSCLC without EGFR or ALK mutations, the addition of pembrolizumab to standard platinum-based chemotherapy seems to be the preferred treatment, which needs to be validated by further prospective trials.

Serum-free estradiol (E2) levels are prognostic in men with chemotherapy-naive advanced non-small cell lung cancer (NSCLC) and performance status (PS) 2

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 7683-7683 ◽  
Author(s):  
H. Ross ◽  
F. B. Oldham ◽  
B. Bandstra ◽  
L. Sandalic ◽  
J. Bianco ◽  
...  
Keyword(s):  
Postmenopausal Women ◽  
Advanced Nsclc ◽  
Performance Status ◽  
High Serum ◽  
Phase Iii ◽  
Rank Test ◽  
Serum Free ◽  
Male Patients ◽  
And Performance ◽  
Normal Men

7683 Background: In women with advanced NSCLC, premenopausal estradiol levels are associated with a worse survival than postmenopausal levels, suggesting an adverse effect of estradiol on prognosis in NSCLC (JCO 2006, 24(18S):7038; JCO 2006, 24:59–63). Levels of E2, produced from testosterone by aromatase, are often higher in men than in postmenopausal women (Ann Intern Med. 2000, 133:951–63). To investigate the effect of E2 on prognosis in male patients (pts) with advanced NSCLC, total and free E2 levels were assayed in pretreatment samples from men participating in 2 randomized phase III studies, STELLAR 3 and 4. Methods: Free serum E2 levels were measured prior to chemotherapy using a radioimmuno-assay in samples from 289/307 male pts with advanced NSCLC and PS2 enrolled in STELLAR 3 (paclitaxel + carboplatin (C) v. paclitaxel poliglumex (PPX) + C) and STELLAR 4 (vinorelbine or gemcitabine v. PPX). The effect of free E2 levels on survival was evaluated by log rank test. Male pts were categorized as high or low E2 based on values above or below the median (0.42 pg/ml; range: 0.1–2.95).The assay range for normal men is 0.2 - 0.5 pg/ml; in pre- and postmenopausal women, the range is 0.80- 3.45 and 0.12 - 0.39 pg/ml, respectively. Results: Hazard ratio's (HR), median, and 1-yr survival are summarized in the table . Survival was worse for male pts with E2 values higher than the median compared to those below the median (HR 1.56, p = .0008). This difference in survival was not dependent on treatment arm as survival was similar for male pts > 0.42 pg/ml receiving either PPX or control. Conclusions: High serum free E2 levels are associated with shorter survival in men with advanced NSCLC, consistent with the shorter survival noted in NSCLC in premenopausal compared to older women. While PPX is associated with improved survival in women with premenopausal E2 levels (JCO 2006, 24(18S):7039), the relatively low levels of E2 in men may be insufficient to affect survival in male pts receiving PPX. [Table: see text] [Table: see text]

Gemcitabine with or without cisplatin in patients (pts) with advanced or metastatic biliary tract cancer (ABC): Results of a multicenter, randomized phase III trial (the UK ABC-02 trial)

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 4503-4503
Author(s):  
J. W. Valle ◽  
H. S. Wasan ◽  
D. D. Palmer ◽  
D. Cunningham ◽  
D. A. Anthoney ◽  
...  
Keyword(s):  
Primary Tumour ◽  
Performance Status ◽  
Locally Advanced ◽  
Progression Free Survival ◽  
Standard Of Care ◽  
Patient Characteristics ◽  
Hazard Ratio ◽  
Phase Iii ◽  
Ecog Performance Status ◽  
Phase Iii Trial

4503 Background: There is no established standard chemotherapy for pts with inoperable ABC. We previously reported an improvement in progression-free survival (PFS) in a randomised phase II trial of 86 pts (ABC-01) using gemcitabine/cisplatin (GemCis) vs. gemcitabine (Gem) (Valle ASCO-GI 2006, abstr. 98). This study was extended into ABC-02, a phase III trial, to recruit a further 314 pts with overall survival (OS) as the primary end-point. Methods: Consenting pts with histologically/cytologically-confirmed ABC, aged ≥18 years, ECOG performance status 0 - 2, and adequate haematological, hepatic and renal function were randomised to receive either Cis (25 mg/m2) followed by Gem (1000 mg/m2 D1, 8 q21d) for 8 cycles, or Gem alone (1000 mg/m2 on D1, 8, 15 q28d) for 6 cycles, stratified by extent of disease, site of primary tumour, ECOG score and centre. The trial had an 80% power to detect an OS hazard ratio of 0.73. Results: From May 2005 to October 2008, 324 pts were randomised to ABC- 02 from 34 UK centres. We report the pre-planned combined analysis of ABC-01 and ABC-02 based on 410 pts (GemCis=206/Gem=204). Patient characteristics: median age 64 yrs (range 23–85); male (47%); metastatic disease (75%), locally advanced (25%); gallbladder (36%), bile duct (59%), ampulla (5%); and ECOG 0–1 (87%), 2 (12%). With a median follow-up of 6.1 months and 263 deaths, the median OS was greater with GemCis than Gem, 11.7 vs. 8.2 months (log rank p=0.002), with hazard ratio 0.68 (95%-CI 0.53, 0.86). The median PFS was greater with GemCis than Gem, 8.5 vs. 6.5 months (log rank p=0.003), with hazard ratio 0.70 (95%-CI 0.56, 0.88).Toxicity was similar between the arms (by week 12, 57% had a grade 3/4 toxicity in each arm), though there was a slight excess of neutropenia using GemCis. Conclusions: This is the largest ever study in ABC and demonstrates a clear survival advantage for GemCis without added clinically significant toxicity, setting a new international standard of care. No significant financial relationships to disclose.

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