Post-progression survival (PPS) and improvements in progression-free survival (PFS) in randomized controlled trials (RCTs) in advanced gastric cancer (AGC).

2013 ◽  
Vol 31 (4_suppl) ◽  
pp. 93-93
Author(s):  
Kohei Shitara ◽  
Marc E. Buyse ◽  
Everardo D. Saad
Keyword(s):  
Statistical Significance ◽  
Progression Free Survival ◽  
Phase Iii ◽  
First Line ◽  
Free Survival ◽  
World Region ◽  
Randomized Controlled ◽  
First Line Therapy ◽  
Kaplan Meier ◽  
Randomized Phase Ii

93 Background: Since PPS may influence overall survival (OS), studying PPS may help in understanding why gains in PFS do not always translate into gains in OS. Methods: We searched PubMed for RCTs on first-line therapy for AGC published between 01/82 and 01/12. We estimated mean PFS and OS (in months) using the area under the published Kaplan-Meier curves, computing mean PPS as mean OS minus mean PFS for each trial arm. We compared PPS between trial arms grouped according to PFS duration (longer versus shorter PFS, regardless of statistical significance) and world region (using t tests). Results: We retrieved 53 trials (25 were phase III, 24 were randomized phase II, and 4 had no explicit phase) enrolling 12,050 patients in 121 arms. We could estimate mean endpoints for 33 trials (26/6/1 with 2/3/4 arms), which were more likely to be phase III than the 20 trials with no Kaplan-Meier curves for both endpoints. The average mean PPS was almost identical between trial arms with longer or shorter PFS. Use of PPS assessed as median OS minus median PFS yielded qualitatively similar results. Conclusions: Treatments that improve PFS do not seem to influence PPS. Asian trials appear to have longer OS due to longer PPS, not PFS. Work with individual patient data collected worldwide by the GASTRIC group is under way to confirm our findings. [Table: see text]

Impact of first-line fluorouracil, leucovorin, oxaliplatin, and docetaxel (FLOT) for patients with advanced gastroesophageal adenocarcinoma: A retrospective analysis.

2015 ◽  
Vol 33 (3_suppl) ◽  
pp. 216-216
Author(s):  
Aline Da Rocha Lino ◽  
Raphael Brandao Moreira ◽  
Jessica Ribeiro Gomes ◽  
Tarcia Tarciane Soares de Sousa ◽  
Carina Mina Abrahao ◽  
...  
Keyword(s):  
Progression Free Survival ◽  
Phase Iii ◽  
Gastroesophageal Cancer ◽  
First Line ◽  
First Line Therapy ◽  
Kaplan Meier ◽  
Significant Toxicity ◽  
Phase Iii Trials ◽  
Gastroesophageal Adenocarcinoma ◽  
The Cost

216 Background: Despite a large number of randomized trials, there is no consensus as to the best regimen for advanced gastroesophageal cancer. Combination therapy with docetaxel, cisplatin, and 5-FU has shown increased response rates, progression-free survival (PFS) and overall survival (OS), but at the cost of significant toxicity. Based on a small phase II study, FLOT has been adopted by some groups given its better toxicity profile. We aim at reporting our experience with this regimen Methods: Patients with unresectable advanced gastroesophageal adenocarcinoma who received FLOT (oxaliplatin 85 mg/m2, leucovorin 200 mg/m2, and fluorouracil 2600 mg/m2 as a 24h infusion in combination with docetaxel 50 mg/m2 on day 1 every 2 weeks) as first-line therapy at our institution were retrospectively evaluated. PFS and OS were estimated by the Kaplan-Meier method. Results: A total of 23 patients were reviewed, most of them with metastatic disease (60%). Median age was 56 years (range 26–76) and 74% were male. Median PFS and OS were 5,2 (95% CI 4,0-6,3) and 8,5 months (95% CI 4,4-12,6), respectively. Only 13%of the patients experienced prolonged PFS (>12 months). There were no deaths due to the treatment. Conclusions: Before FLOT could be adopted as a first-line regimen for metastatic gastroesophageal cancer, phase III trials are urgently needed comparing FLOT with more traditional regimens.

First-line ribociclib plus letrozole for postmenopausal women with hormone receptor-positive (HR+), HER2-negative (HER2-) advanced breast cancer (ABC): MONALEESA-2 safety results.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. 1047-1047 ◽  
Author(s):  
Wolfgang Janni ◽  
Howard A. Burris ◽  
Kimberly L. Blackwell ◽  
Lowell L. Hart ◽  
Arlene Chan ◽  
...  
Keyword(s):  
Postmenopausal Women ◽  
Progression Free Survival ◽  
Phase Iii ◽  
Cyclin Dependent Kinase ◽  
First Line ◽  
Event Duration ◽  
Free Survival ◽  
First Line Therapy ◽  
Hormone Receptor Positive ◽  
Dose Modifications

1047 Background: In the randomized, phase III MONALEESA-2 study (NCT01958021), first-line therapy with ribociclib (RIB; cyclin-dependent kinase 4/6 inhibitor; 600 mg/day; 3-weeks-on/1-week-off) + letrozole (LET; 2.5 mg/day) in postmenopausal women with HR+, HER2– ABC significantly prolonged progression-free survival vs placebo (PBO) + LET (hazard ratio: 0.556; p = 0.00000329; Hortobagyi GN et al. N Engl J Med 2016;375:1738–48). Here we present further safety analyses from MONALEESA-2. Methods: Adverse events (AEs) were characterized per CTCAE v4.03. Analyses of key AEs included time to first event, duration (time to AE resolution), and the rate of associated dose interruptions or reductions. Results: Safety analysis included 664 patients (pts; RIB + LET: 334; PBO + LET: 330). Neutropenia was the most common all-grade (G) and G3/4 AE in the RIB + LET arm (Table); febrile neutropenia rates were low (RIB + LET arm: 1.5%) with no associated deaths. Median time to first event for G ≥2 neutropenia in the RIB + LET arm (based on neutrophil counts) was 16 days. Other common G3/4 AEs (increased by ≥5% in the RIB + LET vs PBO + LET arm) were leukopenia (21% vs 1%), elevated alanine aminotransferase (ALT; 9% vs 1%), lymphopenia (7% vs 1%), and elevated aspartate aminotransferase (AST; 6% vs 1%). Neutropenia was the most common AE leading to dose interruptions/reductions; G3/4 neutropenia led to dose interruptions in 48% vs < 1% and reductions in 30% vs 0% of pts in the RIB + LET vs PBO + LET arm. 7.5% vs 2.1% of pts (RIB + LET vs PBO + LET) discontinued due to AEs; common AEs leading to discontinuation ( > 1% pts) were elevated ALT (5% vs < 1%), elevated AST (3% vs 1%), and vomiting (2% vs 0%). Conclusions: First-line RIB + LET had a manageable safety profile in postmenopausal women with HR+, HER2– ABC. Neutropenia was the most common AE in the RIB arm, and was transient and reversible with dose modifications. Additional AE analyses will be presented. Clinical trial information: NCT01958021. [Table: see text]

Combined analysis of three randomized phase III trials comparing S-1 monotherapy and S-1 combination therapy for first-line treatment of advanced gastric cancer.

2017 ◽  
Vol 35 (4_suppl) ◽  
pp. 49-49
Author(s):  
Madoka Takeuchi ◽  
Wataru Ichikawa ◽  
Kohei Shitara ◽  
Yu Sunakawa ◽  
Koji Oba ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Overall Survival ◽  
Combination Therapy ◽  
Advanced Gastric Cancer ◽  
Progression Free Survival ◽  
Phase Iii ◽  
First Line ◽  
Free Survival ◽  
First Line Therapy ◽  
Phase Iii Trials

49 Background: S-1 is the gold standard for first line therapy of advanced gastric cancer in Asia. There have been multiple meta-analyses published researching and comparing the efficacy and safety of S-1 monotherapy versus combination1,2. However there has been no analysis using actual trial data. Methods: Actual data from three randomized Phase III trials were combined to compare the efficacy of S-1 Monotherapy and S-1 combination therapy. The START trial, comparing S-1 and combination S-1 with docetaxel, SPIRITS, comparing S-1 and combination S-1 with cisplatin and TOP-002, comparing S-1 and S-1 combination with irinotecan, were merged and combined. For this analysis, the three S-1 arms were combined (n = 642) and the different S-1 combination therapy were combined (n = 617) creating two new treatment arms. The primary efficacy outcome of overall survival, progression free survival and subset analysis of overall survival stratified by baseline characteristics were performed. Results: A total of 1248 patients, including 210 Korean patients from the START were used in the analysis. The median overall survival days for S-1 combination and monotherapy was 382 [209, 648] and 321 [177, 597] and median progression free survival days for S-1 combination and monotherapy was 153 [81, 267] and 122 [61, 204]. Both overall survival (p = 0.0088 HR = 0.85 (0.76,0.96)) and progression free survival ( p = < 0.001 HR = 0.75 (0.67,0.85)) was significantly longer in the combination therapy arm compared to the monotherapy arm. Conclusions:Although there are limitations, the analysis re-confirms that S-1 combination therapy shows to be more efficacious compared to S-1 monotherapy for advanced gastric cancer patients. It must be noted that heterogeneity of the S-1 arm was not carefully considered when combining the S-1 data for the trials. In addition, the results are limited to the Asian (Japanese and Korean) population.

Bevacizumab in Combination With Oxaliplatin-Based Chemotherapy As First-Line Therapy in Metastatic Colorectal Cancer: A Randomized Phase III Study

2008 ◽  
Vol 26 (12) ◽  
pp. 2013-2019 ◽  
Author(s):  
Leonard B. Saltz ◽  
Stephen Clarke ◽  
Eduardo Díaz-Rubio ◽  
Werner Scheithauer ◽  
Arie Figer ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Overall Survival ◽  
Placebo Group ◽  
Metastatic Colorectal Cancer ◽  
Disease Progression ◽  
Statistical Significance ◽  
Progression Free Survival ◽  
Phase Iii ◽  
First Line ◽  
Free Survival

PurposeTo evaluate the efficacy and safety of bevacizumab when added to first-line oxaliplatin-based chemotherapy (either capecitabine plus oxaliplatin [XELOX] or fluorouracil/folinic acid plus oxaliplatin [FOLFOX-4]) in patients with metastatic colorectal cancer (MCRC).Patients and MethodsPatients with MCRC were randomly assigned, in a 2 × 2 factorial design, to XELOX versus FOLFOX-4, and then to bevacizumab versus placebo. The primary end point was progression-free survival (PFS).ResultsA total of 1,401 patients were randomly assigned in this 2 × 2 analysis. Median progression-free survival (PFS) was 9.4 months in the bevacizumab group and 8.0 months in the placebo group (hazard ratio [HR], 0.83; 97.5% CI, 0.72 to 0.95; P = .0023). Median overall survival was 21.3 months in the bevacizumab group and 19.9 months in the placebo group (HR, 0.89; 97.5% CI, 0.76 to 1.03; P = .077). Response rates were similar in both arms. Analysis of treatment withdrawals showed that, despite protocol allowance of treatment continuation until disease progression, only 29% and 47% of bevacizumab and placebo recipients, respectively, were treated until progression. The toxicity profile of bevacizumab was consistent with that documented in previous trials.ConclusionThe addition of bevacizumab to oxaliplatin-based chemotherapy significantly improved PFS in this first-line trial in patients with MCRC. Overall survival differences did not reach statistical significance, and response rate was not improved by the addition of bevacizumab. Treatment continuation until disease progression may be necessary in order to optimize the contribution of bevacizumab to therapy.

Serial cell-free DNA (cfDNA) sampling in advanced pancreatic ductal adenocarcinoma (PDAC) patients may predict therapeutic outcome.

2021 ◽  
Vol 39 (3_suppl) ◽  
pp. 423-423
Author(s):  
Gehan Botrus ◽  
Yu Fu ◽  
Mohamad Bassam Sonbol ◽  
Leylah Drusbosky ◽  
Daniel H. Ahn ◽  
...  
Keyword(s):  
Overall Survival ◽  
Progression Free Survival ◽  
Ductal Adenocarcinoma ◽  
Rank Test ◽  
First Line ◽  
Free Survival ◽  
Probability Of Survival ◽  
First Line Therapy ◽  
Kaplan Meier ◽  
Next Generation Sequencing Ngs

423 Background: Advanced PDAC remains a deadly disease with a 5-year survival rate of less than 10%. cfDNA - based next generation sequencing (NGS) may identify actionable alterations in patients with PDAC. In this study, we aim to determine the feasibility of utilizing serial cfDNA NGS testing and its potential relevance in predicting therapeutics outcomes. Methods: A total of 23 PDAC patients with PDAC cfDNA isolated from plasma collected at diagnosis and upon disease progression to first line SOC therapy and were analyzed on a 73-74 gene NGS panel (Guardant Health). Changes in molecular profiles from baseline to progression were analyzed for overall survival, progression free survival (PFS), and treatment response. PFS and OS were analyzed using the Kaplan-Meier method and the log-rank test was used to compare the survival of different groups of patients. All p-values were two-sided. Analyses were performed using R (version 3.5.1, R Foundation, Vienna, Austria). Results: In this retrospective study, the 1-year probability of survival was 71% (median 473 days) and the 1-year PFS was 14% (median 212 days). TP53 and KRAS were the most frequently mutated genes identified in baseline samples, with 78% prevalence for each. Patients with clearance of TP53 17% (3/18) patients and/or KRAS 33% (6/18) patients clones after first line therapy significantly increases PFS (p=0.0056 and p=0.037, with HR of 0.087 and 0.32, respectively). However, appearance of TP53 or KRAS alterations upon progression does not significantly affect overall survival or PFS. Conclusions: The preliminary results from this study suggest that cfDNA clearance of TP53 and/or KRAS alterations may predict for improved PFS in PDAC. Confirmation of these findings in larger studies is warranted.

Leucovorin and Fluorouracil With or Without Oxaliplatin as First-Line Treatment in Advanced Colorectal Cancer

2000 ◽  
Vol 18 (16) ◽  
pp. 2938-2947 ◽  
Author(s):  
A. de Gramont ◽  
A. Figer ◽  
M. Seymour ◽  
M. Homerin ◽  
A. Hmissi ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Advanced Colorectal Cancer ◽  
Progression Free Survival ◽  
Phase Iii ◽  
First Line ◽  
Free Survival ◽  
First Line Therapy ◽  
Oxaliplatin Treatment ◽  
Phase Iii Study ◽  
Grade 3

PURPOSE: In a previous study of treatment for advanced colorectal cancer, the LV5FU2 regimen, comprising leucovorin (LV) plus bolus and infusional fluorouracil (5FU) every 2 weeks, was superior to the standard North Central Cancer Treatment Group/Mayo Clinic 5-day bolus 5FU/LV regimen. This phase III study investigated the effect of combining oxaliplatin with LV5FU2, with progression-free survival as the primary end point. PATIENTS AND METHODS: Four hundred twenty previously untreated patients with measurable disease were randomized to receive a 2-hour infusion of LV (200 mg/m2/d) followed by a 5FU bolus (400 mg/m2/d) and 22-hour infusion (600 mg/m2/d) for 2 consecutive days every 2 weeks, either alone or together with oxaliplatin 85 mg/m2 as a 2-hour infusion on day 1. RESULTS: Patients allocated to oxaliplatin plus LV5FU2 had significantly longer progression-free survival (median, 9.0 v 6.2 months; P = .0003) and better response rate (50.7% v 22.3%; P = .0001) when compared with the control arm. The improvement in overall survival did not reach significance (median, 16.2 v 14.7 months; P = .12). LV5FU2 plus oxaliplatin gave higher frequencies of National Cancer Institute common toxicity criteria grade 3/4 neutropenia (41.7% v 5.3% of patients), grade 3/4 diarrhea (11.9% v 5.3%), and grade 3 neurosensory toxicity (18.2% v 0%), but this did not result in impairment of quality of life (QoL). Survival without disease progression or deterioration in global health status was longer in patients allocated to oxaliplatin treatment (P = .004). CONCLUSION: The LV5FU2-oxaliplatin combination seems beneficial as first-line therapy in advanced colorectal cancer, demonstrating a prolonged progression-free survival with acceptable tolerability and maintenance of QoL.

No Significant Clinical Benefit of First Line Therapy with Fludarabine (F) in Comparison to Chlorambucil (Clb) in Elderly Patients (pts) with Advanced Chronic Lymphocytic Leukemia (CLL): Results of a Phase III Study of the German CLL Study Group (GCLLSG).

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 629-629 ◽  
Author(s):  
Barbara F. Eichhorst ◽  
Raymonde Busch ◽  
Martina Stauch ◽  
Manuela Bergmann ◽  
Matthias Ritgen ◽  
...  
Keyword(s):  
Elderly Patients ◽  
Clinical Benefit ◽  
Progression Free Survival ◽  
Phase Iii ◽  
First Line ◽  
Free Survival ◽  
Significant Clinical Benefit ◽  
First Line Therapy ◽  
Line Therapy ◽  
Phase Iii Study

Abstract Introduction: Treatment regimens based on purine analogues as F have become standard in first line therapy of younger or physically fit CLL pts. In these pts purine analogue-based regimens resulted in higher response rates and prolongation of progression free survival (PFS). Because it is not clear if elderly or physically non-fit pts benefit from more intense first line strategies as well, Clb is still widely used in first line therapy of elderly CLL pts. The GCLLSG initiated a phase III study (CLL5 protocol) to evaluate the effect of F versus (vs.) Clb in first line therapy of elderly patients with advanced CLL. Patients: 206 pts (F 101; Clb 105), older than 64 years, were enrolled between July 1999 and September 2004. 13 pts had to be excluded due to violation of exclusion/inclusion criteria. 15% of the pts were in Binet stage A, 47% in stage B, and 38% in stage C. The median pt age was 70 years (range 64 to 80). Pts were randomized to receive either F 25mg/mi.v. d1–5 q 28 days for 6 courses or Clb 0,4mg/kg ideal bodyweight (BW) (dose escalation up to 0.8mg/kg) q15d for up to 12 months. The mean number of administered courses was 4.9 in the F arm, the median duration of Clb treatment was 6.5 months (median dose 0.5 mg/kg). Results: After a median observation time of 41,5 months (mo) (range 1–89 mo) 165 pts (F 78; Clb 87) were evaluable for response and 184 (F 88; Clb 96) for progression free survival (PFS). In spite of a significantly higher complete remission rate (CRR) and overall response rate (ORR) in the F arm (CRR8% vs. 0%; p=0.008; ORR86% vs. 59%; p<0.001) no difference in the PFS was assessed (median PFS time 18.7 mo for F vs. 17.8 mo for Clb; p=0.72). Moreover, 46% of F treated pts in comparison to 34% Clb treated pts died so far, but overall survival (OS) curves showed no significant difference (median OS 45.9 mo vs. 63.6 mo, p=0.21). Analyzing PFS and OS separately for pts <70 years and ≥70 years no difference between both arms was assessed as well. Impaired creatinine clearance did not have any effect on PFS and OS as well as gender. Pts in the Clb arm received rescue treatment more frequently than F recipients (62% vs. 39%). Pts initially treated with Clb received for first relapse treatment Clb in 20%, F in 43%, F-based combinations in 17% and in 20% others. ORR to 2nd line F was 53% (10 of 19). Pts initially treated with F received in 26% each F-based combinations and CHOP regimen. Retreatment with F was administered in 12%, while 2 pts only received Clb. Conclusion: This long-term follow-up analysis shows that elderly pts have no significant clinical benefit from first line therapy with F in comparison to Clb. Though higher CRR and ORR F failed to show any benefit in terms of PFS and OS. A possible explanation for this phenomenon is the longer treatment period with Clb, that might prevent earlier relapses. Moreover, in case of relapse F treated pts received either no treatment at all or more intense regimen in comparison to Clb. In conclusion, Clb and F are similar potent first-line treatment options for elderly CLL pts.

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