Trastuzumab (T-mab) in combination with docetaxel/cisplatin/S-1 (DCS) for patients with HER2-positive metastatic gastric cancer: Feasibility and preliminary efficacy.

2014 ◽  
Vol 32 (3_suppl) ◽  
pp. 124-124
Author(s):  
Yasushi Sato ◽  
Tetsuji Takayama ◽  
Hiroyuki Ohnuma ◽  
Masahiro Hirakawa ◽  
Takahiro Osuga ◽  
...  

124 Background: Recently the efficacy of trastuzumab (T-mab) for HER2-positive gastric cancer has been reported. We have developed a triplet-drug combination regimen consisting of docetaxel, CDDP, and S-1 (DCS) and reported that the regimen provides very high response rates (BJC 2007; CCP 2009 and 2013). To increase the efficacy of DCS in patients (pts) with HER2-positive unresectable gastric cancer, we carried out a feasibility study for the DCS-T-mab (DCS-T) regimen. Methods: Eligibility criteria included the following: age between 20 and 80 years; unresectable HER2-positive metastatic gastric cancer; normal cardiac function. Pts received oral S-1 (40 mg/m2 b.i.d.) on days 1-14, intravenous cisplatin (60 mg/m2), docetaxel (50 mg/m2) and T-mab (8 mg/kg in the first cycle and 6 mg/kg in the second cycle and thereafter) on day 8 every 3 weeks. Results: This study included 16 pts: median age, 60 years (34 – 76 years), 11 males and 5 females. PS 0/1/2, 10/4/2; differentiated/undifferentiated-type histology, 11/5; U/M/L, 7/8/1; HER2 3+, 13; HER2 2+/FISH+, 3; T3/T4a/T4b, 11/4/1; N0/N1/N2/N3, 2/0/4/10; and distant lymph nodes/liver/peritoneum/lungs/bone/ovaries, 11/7/4/2/1/1. The completion rate until the third cycle was 100%. According to the RECIST criteria, the objective response rate was 93.3%, and the median cycle to response was 1 (1–3 cycles). Adverse events of grade 3 or greater severity were: leukopenia/neutropenia, 68.8/81.3%; FN, 12.5%; anorexia, 25%; and diarrhea, 25%. All of these side effects were well controlled. Non-curative factors disappeared in 7 of 16 cases and R0 resection was carried out in 6 cases (37.5%) including 2 pts with liver metastases. A pathological response was found in 83 % of 6 resected cases. At a median follow-up of 9.8 months (2.3 – 23 months), median PFS was 12.8 months and median OS was not yet reached. Conclusions: T-mab in combination with DCS is a feasible regimen in pts with unresectable HER2-positive gastric cancer. The observed response rate is very promising and warrants further investigation. Clinical trial information: UMIN000005603.

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 4072-4072
Author(s):  
Keisuke Koeda ◽  
Naotoshi Sugimoto ◽  
Junji Tanaka ◽  
Masahiro Tsuda ◽  
Wataru Okamoto ◽  
...  

4072 Background: S-1, a novel oral fluoropyrimidine, plus cisplatin (SP) regimen is one of the standard chemotherapy as first-line for advanced gastric cancer. ToGA study demonstrated that trastuzumab (T-mab) combination regimen improved the overall survival of patients with HER2-positive advanced gastric cancer. However, there was no study evaluating the efficacy and the safety of T-mab in combination with S-1 plus cisplatin (SP) regimen. Therefore, we planned this study to examine the efficacy and the safety of the SP plus T-mab. Methods: Patients confirmed to be HER2-positive by IHC and/or FISH (IHC 3+ or IHC 2+ and FISH positive) received S-1 at 80 mg/m2 po, day 1-14, and cisplatin 60 mg/m2 iv, day 1 plus trastuzumab 8 mg/kg iv, day 1 (6 mg/kg iv, d1 from 2nd course), repeated every 3 weeks until disease progression. Primary endpoint was response rate (RR). Secondary endpoints were progression-free survival, overall survival and safety. The threshold response rate was defined as 35%, and the expected rate was set at 50% with a 80% power and a 1-sided alpha value of 0.1 and the calculated sample size was 50 patients. Results: A total of 56 patients (median age 66) were enrolled in this study. The efficacy and the safety analyses were conducted in the full analysis set of 53 patients. (Two patients were excluded for ineligibility and one was for no treatment). The confirmed RR assessed by the independent review committee was 67.9% (95% CI: 53.7 – 80.1), and the disease control rate was 94.3%. The median PFS was 7.1 months (95% CI: 6.0 – 10.1). The median OS was not reached. (The median follow-up time: 9.2 months) The main grade 3/4 adverse events were as follows: neutropenia 34%, leucopenia 8%, anorexia 23%, diarrhea 8%, hypoalbuminemia 4%, vomiting 6%, and increased creatinine 6%. Conclusions: This tri-week regimen with SP plus T-mab showed promising results in patients with HER2-positive advanced gastric cancer. Clinical trial information: UMIN000005739.


2021 ◽  
Vol 12 ◽  
Author(s):  
Zhiyuan Xu ◽  
Can Hu ◽  
Jianfa Yu ◽  
Yian Du ◽  
Ping Hu ◽  
...  

Objective: Conversion therapy (surgical resection after chemotherapy) is a promising option for unresectable gastric cancer (GC) patients. Addition of anti-angiogenesis drug improves response to chemotherapy. Hence, this study explored the feasibility and efficacy of preoperative paclitaxel (PTX)/S1 chemotherapy combined with apatinib for unresectable GC.Methods: Thirty-one eligible patients with a single unresectable factor were enrolled in this multi-center, single-arm trial. Apatinib (500 mg qd) was administered continuously, while PTX (130 mg/m2) on day 1 and S1 (80 mg/m2) on day 1–14 were given every 3 weeks. The treatment was given for three cycles preoperatively, but the last cycle did not include apatinib. The primary objective measurements included R0 resection rate, objective response rate (ORR) and morbidity of preoperative treatment.Results: Among the 31 patients, 30 patients were evaluable for tumor response, the ORR to preoperative treatment was 73.3%. Eighteen of 30 patients underwent surgery, and R0 resection was achieved in 17 patients. The patients who underwent the conversion surgery had a superior OS compared with those who did not (3 years OS: 52.9 vs 8.3%, p = 0.001). The surgery was operated after apatinib had stopped for a median duration of 4 weeks. Neither anastomotic leakage nor wound healing complications was observed. No increased bleeding event was observed compared with historical data. During preoperative treatment, grade 3 or 4 toxicities were experienced by 58.1% of the patients.Conclusion: Chemotherapy in combination with apatinib demonstrated higher rates of conversion and R0 resection and a superior survival benefit in initial unresectable GC. It is safe and reasonable to suspend apatinib for 4 weeks before the gastrectomy.


2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 4076-4076
Author(s):  
J. Lee ◽  
W. Kang ◽  
S. Lee ◽  
J. Kwon ◽  
H. Kim ◽  
...  

4076 Background: Previous phase II study showed a high efficacy and safety of FOLFOXIRI (irinotecan, oxaliplatin, 5-fluorouracil, leucovorin) combination chemotherapy in metastatic colorectal cancer. This non-randomized open label phase II study evaluated the efficacy and safety of FOLFOXIRI in metastatic or recurrent gastric cancer patients. Methods: Patients with: histologically proven, bidimensionally measurable, metastatic gastric adenocarcinoma, age 18 - 70 years, with a performance status 0 - 2, no prior chemotherapy or at least 12 months after adjuvant therapy, life expectancy > 3 months, signed written informed consent were eligible. Treatment consisted of irinotecan 150 mg/m2 day 1, oxaliplatin 85 mg/m2 day 1, leucovorin 100 mg/m2 day and 5-fluorouracil 2000 mg/m2 as a 48-h continuous infusion starting on day 1, repeated every 2 weeks until unacceptable toxicity, patients’ refusal, or up to 12 cycles. The planned sample size was 48 and the primary endpoint was response rate. Results: From August 2004 to August 2005, 48 patients were prospectively enrolled. The median age was 54 years (24 - 69) and male:female ratio was 1.3:1. In total, 379 cycles were administered with a median of 9 cycles per patient (range, 1–12) and 45/48 patients were evaluable for treatment response. Three patients were not assessable for response due patients’ refusal for further chemotherapy following the first cycle. By per-protocol analysis, the objective response rate was 73.3 % (95% CI, 60.8–85.8) with 2 CRs and 31 PRs. Four patients (9%) had stable disease and 8 patients (18%) had progressive disease. The estimated median survival of all patients was 14.0 months (95% CI, 11.8 - 16.2 ) and the estimated median time-to-progression was 8.9 months (95% CI, 6.7–11.0). In total of 379 cycles administered, most common grade 3/4 toxicities were neutropenia (11% of all cycles) and emesis (12%). Grade 2 peripheral neuropathy occurred in 5 patients. One (2%) patient had severe tumor bleeding and 5 (10%) patients experienced grade 3 diarrhea. Conclusions: FOLFOXIRI combination chemotherapy showed a very promising preliminary anti-tumor activity and was generally well tolerated as a first-line treatment for patients with metastatic gastric cancer. No significant financial relationships to disclose.


2015 ◽  
Vol 33 (3_suppl) ◽  
pp. 129-129
Author(s):  
Ikuo Takahashi ◽  
Mototugu Shimokawa ◽  
Yasunori Emi ◽  
Hiroaki Tanioka ◽  
Takeshi Shiraishi ◽  
...  

129 Background: Capecitabine plus cisplatin (XP) is one of the standard therapies for metastatic gastric cancer (mGC). However there is no clinical practice date in Japan, and results from the ToGA and AVAGAST study suggested dose of cisplatin should be lower in Japanese. This study was designed to evaluate the efficacy and safety of mXP in the clinical practice in Japanese mGC patients (pts) including the elderly. Methods: The study design was multicenter, single-arm, open-label prospective study. The major inclusion criteria were previously untreated mGC; presence of measurable lesions; age 20 years; ECOG performance status (PS) 0–2; and adequate organ function. Pts received mXP (cisplatin 60 mg/m2 d1 plus capecitabine 1,000 mg/m2 bid d1-14) q3w. This schedule was repeated until unacceptable toxicity or disease progression occurred. The primary endpoint was RECIST-confirmed objective response rate (ORR). A sample size of 40 was planned for a threshold ORR of 30% and expected value of 50%, with one-sided alpha of 0.05 and beta of approximately 0.2. Results: Of the 42 pts (male/female, 34/8; median age, 63.5 years (range 50-81); PS 0/1/2, 34/8/0) enrolled from Nov 2011 to Oct 2013. One patient did not fulfill the eligibility criteria. Forty one pts were assessed for response; CR 2 pts, PR 16 pts, SD 14 pts, PD 8 pts, and NE 1 pts. The confirmed ORR was 43.9% (90% CI; 31.2-56.7%, 95% CI; 28.7-59.1%). Median PFS and mOS were 4.5 months (95% CI; 3.9 – 6.5M) and 11.4 months (95% CI; 7.7 – not reached). The most common grade 3/4 adverse events were anorexia 24.4%, neutropenia 36.6%, fatigue 9.8%, hand-foot syndrome 7.3%. Grade 3/4 peripheral neuropathy did not occur. Conclusions: First-line chemotherapy for HER2-negative patient of mXP showed a promising response rate and an acceptable tolerability profile in the clinical practice in Japanese mGC pts including the elderly. Clinical trial information: UMIN:000006668.


2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Joo Young Jung ◽  
Min-Hee Ryu ◽  
Baek-Yeol Ryoo ◽  
Boram Han ◽  
Ji Woong Cho ◽  
...  

Background.This retrospective study aimed to assess the efficacy and toxicities of second-line chemotherapy with irinotecan, leucovorin, and 5-fluorouracil (5-FU) in metastatic gastric cancer (MGC) patients previously treated with docetaxel and S-1 with or without oxaliplatin (DS/DOS).Patients and Methods.We reviewed the data of patients who had previously been treated with first-line DS/DOS and received biweekly irinotecan-based chemotherapy (FOLFIRI/IFL) between October 2004 and November 2011.Results.A total of 209 cycles were administered to 35 patients, with a median of 4 (range, 1–22) cycles each. The overall response rate in 29 response-assessable patients was 17.2%, including 2 complete and 3 partial responses. The median progression-free and overall survivals were 3.81 (95% confidence interval [CI], 1.82–5.80) months and 6.24 (95% CI, 1.44–11.04) months, respectively. The major grade 3/4 toxicity was neutropenia (8.6%).Conclusion.FOLFIRI/IFL chemotherapy showed modest antitumour activity and tolerable toxicities in DS/DOS-treated MGC patients.


2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 1052-1052 ◽  
Author(s):  
A. Chan ◽  
V. Ganju ◽  
D. Becquart ◽  
P. Conte ◽  
L. Petruzelka ◽  
...  

1052 Background: Chemotherapy (CT) plus H is the standard first-line treatment for HER2-positive MBC. H plus vinorelbine is an active and well-tolerated regimen in this setting. The all-oral combination of NVBo and X also appears active and well-tolerated in MBC. We report efficacy and safety results from the first 34 patients (pts) included in an international trial evaluating NVBoXH in HER2-positive MBC. Methods: In this multicenter trial, main eligibility criteria included: HER2-positive disease (IHC 3+ or FISH+), documented measurable MBC previously untreated by CT, relapse 6 months after completing neoadjuvant or adjuvant CT, Karnofsky PS = 70, age =18 years. Pts received 3-weekly cycles of NVBo 60 mg/m2 (cycle 1) escalating to 80 mg/m2 (from cycle 2) days 1 and 8; × 1,000 mg/m2 bid (750 if = 65 years) days 1–14; H 4 mg/kg day 1 as a loading dose then 2 mg/kg i.v. weekly starting on day 8. Treatment was continued until progression or unacceptable toxicity. Primary endpoint is overall response rate. Results: Baseline characteristics: median age 54 years (20% = 65); prior (neo)adjuvant CT 21 pts (62%); type of CT: anthracycline 52%, anthracycline + taxane 29%, CMF 14%, taxane 5%; visceral involvement 29 pts (85%), >2 metastatic sites 13 pts (38%). Treatment administered: median 8 cycles, median relative dose intensity: NVBo 77%, X 81%, H 95%; NVBo dose escalation to 80 mg/m2 in 91% of pts. Safety (n=34, G3/4 NCI CTC v2 adverse events): neutropenia 22 pts (65%), diarrhea 4 pts (12%), febrile neutropenia 3 pts (9%), vomiting 3 pts (9%), hand-foot syndrome 3 pts (9%), asthenia 3 pts (9%), infection without neutropenia 2 pts (6%), LVEF decline 2 pts (6%), stomatitis 1 pt (3%), nausea 1 pt (3%), constipation 1 pt (3%). Efficacy (n=31 evaluable pts): objective response rate (RECIST) 71% (95% CI [52–86]), CR 13%, PR 58%, SD 23%, PD 6%, disease control (CR+PR+ SD for =6 months) 84%. Progression-free survival, overall survival and duration of response data are not yet mature. Conclusions: This is the first trial, in pts with HER2-positive MBC, to show high efficacy with first-line NVBoXH therapy. This regimen can be safely administered in this pt population. No significant financial relationships to disclose.


2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 4013-4013 ◽  
Author(s):  
Yung-Jue Bang ◽  
Seock-Ah Im ◽  
Keun-Wook Lee ◽  
Jae Yong Cho ◽  
Eun-Kee Song ◽  
...  

4013 Background: Our multicenter study compared the efficacy of the oral PARP inhibitor olaparib plus paclitaxel (O/P) vs paclitaxel alone (P) as second-line therapy in pts with recurrent/metastatic gastric cancer (GC) (NCT01063517). As initial preclinical data suggested that responsiveness of GC cell lines to olaparib was associated with low ATM protein levels, our study was enriched for pts with low ATM tumors (ATM–) by IHC (50% randomized vs 14% screening prevalence). Methods: Eligible pts were randomized 1:1 (stratified by ATM status) to receiveolaparib 100 mg bid (tablet form) plus paclitaxel (80 mg/m2 iv on days 1, 8, 15 per 28-day cycle) or placebo plus paclitaxel until progression or investigator decision. After combination therapy, pts could take olaparib 200 mg bid monotherapy or placebo until progression. Co-primary endpoints: progression-free survival (PFS; RECIST v1.1) in all pts and ATM– pts. Secondary endpoints: overall survival (OS), objective response rate (ORR), safety. Results: 123/124 randomized pts were treated (O/P=61; P=62). Baseline characteristics were generally well balanced. Use of post-progression therapy was similar in both arms (O/P=48.4%; P=43.5%) as was median paclitaxel duration (O/P=17 wks; P=16 wks); 18 pts received monotherapy (O/P=11; P=7). More pts in the O/P than P arm had delays (79 vs 63%) and reductions (41 vs 27%) in paclitaxel dosing. The most common grade ≥3 AEs in the O/P and P arms were neutropenia (56 vs 39%) and anemia (11 vs 11%). Conclusions: Olaparib plus paclitaxel was well tolerated and led to a statistically significant improvement in OS, but not PFS, vs paclitaxel alone in both all pts and ATM– pts, with a larger benefit in ATM– pts. Clinical trial information: NCT01063517. [Table: see text]


2021 ◽  
Author(s):  
Zaisheng Ye ◽  
Yi Zeng ◽  
Shenghong Wei ◽  
Yi Wang ◽  
Zhitao Lin ◽  
...  

Abstract BackgroundTo investigate the short-term efficacy and safety of apatinib combined with oxaliplatin and S-1 in the treatment of unresectable gastric cancer.Patients and methodsPreviously untreated patients with unresectable HER-2-negative advanced gastric cancer were selected. All the patients received six cycles of S-1 and oxaliplatin and five cycles of apatinib, which were administered at intervals of three weeks. The surgery was performed after six cycles of drug treatment. The primary endpoints were radical resection (R0) rate and safety. This study was registered with the China Trial Register, number ChiCTR-ONC-17010430(01/12/2016-01/12/2022).ResultsA total of 39 patients were enrolled. Efficacy evaluation was feasible for 37 patients. One patient achieved complete response (CR, 2.7%), 26 patients achieved partial response (PR, 70.3%), three patients had stable disease (SD, 8.1%) and seven patients had progressive disease (PD, 18.9%). The objective response rate (ORR) was 73.0% and the disease control rate (DCR) was 81.1%. 22 patients underwent surgery, among which 14 patients underwent radical resection (R0), with a R0 resection rate of 63.6%. The 1-year survival rate of the surgical group (22 patients) was 71.1% and the 2-year survival rate was 41.1%. The median survival time was 21 months. The incidence of adverse reactions (AEs) was 100%. Leucopenia (65.3%) and granulocytopenia (69.2%) were the most common hematological AEs. The most common non-hematological AEs were fatigue (51.3%) and oral mucositis (35.9%).ConclusionApatinib combined with oxaliplatin and S-1 showed good short-term survival and acceptable safety in the conversion therapy of unresectable gastric cancer.


2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Miaomiao Gou ◽  
Tongtong Qu ◽  
Zhikuan Wang ◽  
Huan Yan ◽  
Yanhai Si ◽  
...  

Background and Aims. Biomarkers for systemic inflammation have been introduced into clinical practice for risk-rating in cancer patients’ treatment. This study is aimed at confirming the prognostic role of the neutrophil-to-lymphocyte ratio (NLR) as an effective biomarker for patients with metastatic gastric cancer (MGC) receiving anti-PD-1 agents. Method. Patients with MGC who received anti-PD-1 treatment at the Chinese PLA General Hospital between January 2016 and November 2020 were reviewed. The study analyzed the association of NLR and overall survival (OS) or progression-free survival (PFS) and antitumor response rate with PD-1 inhibitors. Results. 137 patients were included in the final analysis. The area under the curve value of NLR for 6-month OS was 0.71. The best cut-off value for NLR was 3.23. NLR < 3.23 was associated with longer OS ( HR = 0.38 , 95% CI, 0.26-0.57, p < 0.001 ) and PFS ( HR = 0.42 , 95% CI, 0.29-0.62, p < 0.001 ) in patients with MGC. No significant difference was observed in the objective response rate (ORR) (35.8% vs. 28.6%, p = 0.377 ) and disease control rate (DCR) (86.4% vs. 78.6%, p = 0.229 ) in the NLR < 3.23 group and in the NLR ≥ 3.23 group, respectively. Univariate analysis and multivariate analysis found that NLR was an independent prognosis biomarker for PFS and OS. Conclusions. Pretreatment elevated NLR was significantly associated with inferior PFS and OS in patients with MGC who received anti-PD-1 inhibitors. Clinicians need to consider patients with elevated NLR for decisions on immunotherapy strategy.


2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 14105-14105
Author(s):  
H. C. Chung ◽  
W. Yeo ◽  
S. Y. Rha ◽  
M. Boyer ◽  
S. Y. Ong ◽  
...  

14105 Background: Cytotoxic chemotherapy has been widely used in patients (pts) with advanced or metastatic gastric cancer, but the reported high response rates in phase II settings have not been confirmed by randomized trials. Moreover, the therapeutic impact on survival has been modest. The purpose of this study was to evaluate Irofulven, a DNA interacting acylfulvene analog, as first line therapy for pts with recurrent or metastatic gastric cancer. Methods: The main eligibility criteria were: Histologically or cytologically confirmed disease; age > 18 yrs; ECOG ≤ 2; measurable disease; no prior chemotherapy for recurrent or metastatic disease; life expectancy > 3 months. Irofulven was given at 0.45 mg/kg i.v. over 30-min infusion (max. 50 mg), on Day 1 and 8, every 3 weeks. The primary endpoint was treatment response and toxicity; the secondary end-point was survival. A 2-stage phase II design was used. In the first stage, the target enrollment was 20, if ≤ 2 responses were observed, the study would be stopped and the treatment concluded to be ineffective; if ≥ 6 responses were observed, the study drug would be concluded to be active. Otherwise, another 15 pts would be entered into the second stage. Survival was constructed using the Kaplan-Meier method. All patients entering the trial were included in the survival analysis. Results: 23 pts were entered into the first stage. The median no. of cycles per pt was 2 (range: 1–6). 2 pts (9%) had ≥ 1 week delay in administration of subsequent cycle of chemotherapy. For the day 8 chemotherapy, 7 pts (30%) required dose reductions; 5 (22%) had dose omitted. 22% and 17% pts developed grade 3/4 anemia and neutropenia respectively. There was no grade 4 thrombocytopenia or neutropenic fever. Of the 20 evaluable pts, no responses was observed, 3 pts had stable disease after 2 cycles of treatment which was not confirmed by a further assessment. Median overall survival was 6.05 months (95% CI 4.55–9.39). Conclusions: Irofulven was tolerated at the described dose but showed no evidence of antitumor activity in patients with advanced gastric cancer. Acknowledgement: The study was sponsored by the Division of Cancer Treatment and Diagnosis, National Cancer Institute, U.S.A, and its collaborator MGI Pharma, Inc. No significant financial relationships to disclose.


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