North American (NA) subgroup results from VELOUR: Ziv-aflibercept versus placebo (pbo) plus FOLFIRI in mCRC that is resistant to or has progressed after an oxaliplatin-containing regimen.

2013 ◽  
Vol 31 (4_suppl) ◽  
pp. 465-465 ◽  
Author(s):  
Edith P. Mitchell ◽  
Michael J. Guarino ◽  
Carmen Joseph Allegra ◽  
Emmanuelle Boelle ◽  
Michael L. Andria ◽  
...  

465 Background: Ziv-aflibercept (trade name ZALTRAP; known outside the US as aflibercept) is a new multiple angiogenic inhibitor that prevents VEGF-A, VEGF-B and PLGF from binding their receptors. Ziv-aflibercept was recently approved by the FDA in combination with FOLFIRI for patients with mCRC that is resistant to or has progressed after an oxaliplatin-containing regimen. Approval was based on the multinational phase III VELOUR trial (N=1226) which showed statistically significant improvements in overall survival (OS), progression-free survival (PFS), and overall response rate (ORR) with aflibercept + FOLFIRI. Detailed analyses of the NA subgroup are presented here. Methods: Patients were randomized 1:1 to ziv-aflibercept (4 mg/kg) + FOLFIRI or pbo + FOLFIRI every 2 wk. Patients had ECOG performance status (PS) ≤2, 1 prior oxaliplatin-based regimen, and prior bevacizumab (bev) was allowed. Primary endpoint was OS. The NA analysis was pre-specified, but not powered, to compare within or between subgroups. Results: NA patients (N=138) were randomized to ziv-aflibercept + FOLFIRI (n=63) or pbo + FOLFIRI (n=75). Baseline characteristics were similar in both arms (ziv-aflibercept: median 61 yrs; 60% male; 96% PS 0-1; 56% >1 metastatic organ; 74% prior bev). Ziv-aflibercept vs pbo improved median OS (17.94 vs 12.88 mos; HR=0.691, 95% CI: 0.442-1.079), median PFS (6.01 vs 4.17 mos; HR=0.536, 99.9% CI: 0.222-1.296) and ORR (12% vs 9%). Patients on average received more cycles (median 8.5 vs 7.0) and had longer duration of exposure (median 20 vs 14 wk), but had more treatment modifications with ziv-aflibercept vs pbo. Most of the severe AEs (grade ≥3) with ziv-aflibercept were grade 3 including hypertension, venous thromboembolic events, proteinuria, diarrhea, fatigue/asthenia, infection, stomatitis/ulceration and neutropenia. There were few grade 4 AEs. Conclusions: Ziv-aflibercept + FOLFIRI in NA mCRC patients previously treated with an oxaliplatin-based regimen (with or without prior bev) resulted in improved OS, PFS, and ORR, with an acceptable safety profile. The NA results are consistent with the VELOUR worldwide population. Clinical trial information: NCT00561470.

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. e14528-e14528
Author(s):  
Edith P. Mitchell ◽  
Michael J. Guarino ◽  
Michael L. Andria ◽  
Pankaj Bhargava ◽  
Jeffrey J. Kirshner

e14528 Background: Ziv-aflibercept (known outside the US as aflibercept) is a multiple angiogenic factor inhibitor that prevents VEGF-A, VEGF-B, and PlGF from binding their receptors. Ziv-aflibercept in combination with FOLFIRI was FDA approved for metastatic colorectal cancer (mCRC) patients who are resistant to or have progressed following an oxaliplatin-containing regimen. Approval was based on the multinational phase 3 VELOUR trial (N=1226) showing statistically significant improvements in overall survival (OS), progression-free survival (PFS), and overall response rate (ORR) with ziv-aflibercept/FOLFIRI. Detailed analyses of the NA subgroup are presented here. Methods: Patients were randomized 1:1 to ziv-aflibercept 4 mg/kg + FOLFIRI or placebo (pbo) + FOLFIRI q2wks. Patients had ECOG PS ≤2 and 1 prior oxaliplatin-based regimen; prior bevacizumab was allowed. Primary endpoint was OS. NA analysis was prespecified but not powered to compare within or between subgroups. Results: NA patients (n=138) were randomized to ziv-aflibercept/FOLFIRI (n=63) or pbo/FOLFIRI (n=75). Baseline characteristics were similar in both arms (ziv-aflibercept: median age 61 y; 60% male; 96% PS 0-1; 56% >1 metastatic organ; 74% prior bevacizumab) and were similar to the worldwide population. Median OS for ziv-aflibercept vs pbo was 17.94 vs 12.88 mos; median PFS was 6.01 vs 4.17 mos; ORR was 12% vs 9%. On average, patients received more cycles (median 8.5 vs 7.0), had longer duration of exposure (median 20 vs 14 wks), and more treatment modifications with ziv-aflibercept vs pbo. Most severe AEs (grade ≥3) with ziv-aflibercept were grade 3, including hypertension, venous thromboembolic events, proteinuria, diarrhea, fatigue/asthenia, infection, stomatitis/ulceration, and neutropenia; there were few grade 4 AEs. Conclusions: Ziv-aflibercept/FOLFIRI in mCRC patients previously treated with an oxaliplatin-based regimen showed improvements in OS, PFS, and ORR with an acceptable safety profile. NA results are consistent with the VELOUR worldwide population. Clinical trial information: NCT00561470.


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 5018-5018
Author(s):  
N. M. Hahn ◽  
W. M. Stadler ◽  
R. T. Zon ◽  
D. M. Waterhouse ◽  
J. Picus ◽  
...  

5018 Background: Despite CG therapy, most metastatic UC patients die from their disease. Novel approaches are needed. Combining anti-angiogenic therapy with chemotherapy has improved outcomes in other malignancies, offering hope for similar improvements in UC patients. Methods: Metastatic or unresectable chemonaive UC patients (pts) with an ECOG performance status of 0–1 received C 70 mg/m2 iv d1, G 1,000–1,250 mg/m2 iv d1, 8, and B 15 mg/kg iv d1 on a q21d cycle for up to 8 cycles. Gemcitabine was reduced to 1,000 mg/m2 iv d1, 8 for all subsequent pts after 7 thromboembolic events were noted in the first 17 pts. The primary endpoint was progression free survival (PFS). The trial was designed to detect a 33% improvement in PFS from 7.5 months with traditional CG therapy to 11.25 months with CGB. Results: By December 2008, 45 pts were enrolled, with 43 evaluable for toxicity, 36 for response. Demographics include: 33 (77%) male, 10 (23%) female; median age 66 (Range: 41 - 78); 26 (60%) and 17 (40%) ECOG 0/1; 19 (44%) and 24 (56%) lymph node only / visceral metastases. PFS will be evaluated in May 2009 when all pts will have more than 6 month follow-up data. 14 (33%) and 6 (14%) pts experienced grade 3 or 4 hematologic toxicity (4 pts - thrombocytopenia, 2 pts - neutropenic fever). Grade 3 or 4 nonhematologic toxicity was observed in 24 (56%) and 9 (21%) pts (DVT/PE - 9 pts, CNS hemorrhage/proteinuria/hypertension - 1 pt each) Best RECIST response was: complete response 6 pts (17%, 95% CI 6–33%), partial response 18 pts (50%, 95% CI 33–67%); with overall response rate of 67% (95% CI 51–82%). Stable disease lasting at least 12 weeks was observed in 10 pts (28%, 95% CI 14–45%) and progressive disease in 2 pts (5%, 95% CI 1–19%). Conclusions: CGB demonstrates significant clinical activity in the first-line treatment of metastatic UC patients at the expense of considerable toxicity. The durability of disease control will be determined by assessment of PFS. A phase III trial to further define the toxicity risk vs. clinical benefit of bevacizumab addition to platinum-based doublets is planned in this population. [Table: see text]


2020 ◽  
Vol 20 (11) ◽  
pp. 887-895 ◽  
Author(s):  
Martina Catalano ◽  
Giandomenico Roviello ◽  
Raffaele Conca ◽  
Alberto D’Angelo ◽  
Valeria Emma Palmieri ◽  
...  

Background: The phase III MPACT trial demonstrated the superiority of gemcitabine (Gem) combined with Nab-paclitaxel (Nab-P) versus gemcitabine alone in previously untreated patients with metastatic pancreatic ductal adenocarcinoma (PDAC). The purpose of this study was to evaluate the effect of Gem/Nab-P in routine clinical practice. Methods: From January 2015 to December 2018, patients with metastatic PDAC receiving firstline treatment with a combination of gemcitabine and Nab-paclitaxel were included in a multicentre retrospective observational study. Exploratory analyses of efficacy, and prognostic and predictive markers, were performed. Results: The cohort comprised 115 patients (median age 65 [range 50-84] years) with good performance status (ECOG PS 0-1). The median overall survival (OS) was 11 months (95% CI; 9-13) and the median progression-free survival (PFS) was 6 months (95% CI 5-7). Partial response and stable disease were achieved in 44 and 30 patients, respectively, yielding an overall disease control rate (DCR) of 64.3%. Grade 3-4 hematological toxicity frequency was 22.61% for neutropenia, 5.22% for anemia, and 3.48% for thrombocytopenia. Grade 3 asthenia was recorded in 2.61% of patients. No grade 4 non-hematological events were reported. Dose reduction was necessary in 51.3% of the patients. Conclusions: Our results confirm the efficacy and safety of a first-line regimen comprising gemcitabine and Nab-paclitaxel in metastatic PDAC in a real-life population.


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 (36_suppl) ◽  
pp. 356154-356154
Author(s):  
Michael B. Atkins ◽  
Sandra J. Lee ◽  
Bartosz Chmielowski ◽  
Antoni Ribas ◽  
Ahmad A. Tarhini ◽  
...  

356154 Background: Combinations of immune checkpoint inhibitors (CPI) blocking PD-1 and CTLA-4 or BRAF/MEK inhibitors have both shown significant antitumor efficacy and overall survival (OS) benefit in patients (pts) with BRAFV600-mutant metastatic melanoma (MM), leading to broad regulatory approval. Little prospective data exists to guide the choice of one over the other as initial therapy or the preferred treatment sequence in this population. The DREAMseq Trial was designed to compare the efficacy and toxicity of the sequence of nivolumab/ipilimumab (N/I) followed by dabrafenib/trametinib (D/T) to the converse sequence. Methods: Eligible pts with treatment-naive BRAFV600-mutant MM were stratified by ECOG Performance Status (PS) 0 or 1 and LDH level and randomized 1:1 to receive Step 1 with either N/I (Arm A) or D/T (Arm B) and at disease progression (PD) were enrolled in Step 2 receiving the alternate therapy, D/T (Arm C) or N/I (Arm D), respectively. Pts received N (1mg/kg)/I (3 mg/kg) q3 wks x 4 doses followed by N 240 IV q2 wks for up to 72 wks (Arms A and D) or D 150 mg po BID and T 2 mg po qD until PD (Arms B and C). In 2019, investigators were given the option to use alternate induction dosing of N (3mg/kg)/I (1 mg/kg) q3 wks x 4 doses for Arms A and D. Cycles were every 6 wks and imaging was obtained at baseline and q12 wks on each arm. Primary endpoint was 2-year OS. At the 4th Interim Analysis with 59% of pts being 2 yrs from enrollment, the DSMC and NCI CTEP recommended halting accrual and releasing the data. Results: Beginning 7/2015, 265 out of a proposed 300 pts were enrolled (133 Arm A and 132 Arm B). Median age was 61 (25-85) and 63% were male. Demographics for Arm A and B were balanced with 67% PS 0 and 60% with normal LDH. As of 7/16/21, at a median follow-up of 27.7 mos, 27 pts had switched to Arm C and 46 to Arm D. Overall Grade 3+ toxicity was 60% in Arm A and 52% in Arm B. Grade 5 treatment-related AEs included 2 on Arm A and 1 on Arm C. ORR to date is: Arm A 46% (52/113), Arm B 43% (49/114), Arm C 48% (11/23) and Arm D 30% (8/27). 37/42 assessed pts in Arm A and 19/37 in Arm B remain in response. Median DOR: Arm A- Not reached; Arm B-12.7 mos (95% CI: 8.2, -) (p <0.001). There were 100 deaths (Arm A to C- 38/Arm B to D- 62). 2-yr OS rate for those starting with Arm A was 72% (95% CI: 62-81%) and for Arm B 52% (95% CI: 42-62%) (log-rank p= 0.0095). PFS showed a trend in favor of Arm A (log-rank p=0.054). Both the PFS and OS curves show a biphasic pattern with Arm B being above Arm A until 6 and 10 mos, respectively. For the 115 pts with documented progression on Step 1 (Arm A-44/Arm B-71), 60 (52%) had registered for Step 2. The principal reason for not enrolling on Step 2 was death from PD within 6 mos (Arm A:15/23; Arm B: 25/32). Conclusions: For pts with advanced BRAFV600-mutant MM, the treatment sequence beginning with the CPI combination of N/I resulted in superior OS, which became evident at 10 mos, with longer Step 1 DOR and more ongoing responses than the treatment sequence beginning with D/T. Clinical trial information: NCT02224781.


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.


2013 ◽  
Vol 31 (11) ◽  
pp. 1405-1414 ◽  
Author(s):  
Athanassios Argiris ◽  
Musie Ghebremichael ◽  
Jill Gilbert ◽  
Ju-Whei Lee ◽  
Kamakshi Sachidanandam ◽  
...  

Purpose We hypothesized that the addition of gefitinib, an epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor, to docetaxel would enhance therapeutic efficacy in squamous cell carcinoma of the head and neck (SCCHN). Patients and Methods Patients with recurrent or metastatic SCCHN with Eastern Cooperative Oncology Group (ECOG) performance status of 2, or patients with ECOG performance status of 0 to 2 but were previously treated with chemotherapy, were randomly assigned to receive weekly docetaxel plus either placebo (arm A) or gefitinib 250 mg/d, orally (arm B) until disease progression. At the time of progression, patients in the placebo arm could receive single-agent gefitinib. EGFR, c-MET, and KRAS mutations and polymorphisms in drug metabolizing enzymes and transporters were evaluated by pyrosequencing. Results Two hundred seventy patients were enrolled before the study was closed early at interim analysis (arm A, n = 136; arm B, n = 134). Median overall survival was 6.0 months in arm A versus 7.3 months in arm B (hazard ratio, 0.93; 95% CI, 0.72 to 1.21; P = .60). An unplanned subset analysis showed that gefitinib improved survival in patients younger than 65 years (median 7.6 v 5.2 months; P = .04). Also, there was a trend for improved survival in patients with c-MET wild-type (5.7 v 3.6 months; P = .09) regardless of treatment. Grade 3/4 toxicities were comparable between the two arms except that grade 3/4 diarrhea was more common with docetaxel/gefitinib. Of 18 eligible patients who received gefitinib after disease progression in arm A, one patient had a partial response. Conclusion The addition of gefitinib to docetaxel was well tolerated but did not improve outcomes in poor prognosis but otherwise unselected patients with SCCHN.


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]


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