Clinical effectiveness of apatinib at different doses in patients with advanced gastric cancer as the third-line or further treatment: Results from a post-marketing phase IV study.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e16037-e16037
Author(s):  
Jin Li ◽  
Shukui Qin ◽  
Lu Wen ◽  
Junsheng Wang ◽  
Wenying Deng ◽  
...  

e16037 Background: Apatinib, a highly selective VEGFR2 inhibitor, has shown a clinical benefit as third-line or further-line treatment in patients with gastric cancer in a randomized phase III study with the initial dose of 850mg. However, the study was conducted in a small scale (n = 267) under standardized conditions. Here, we assessed exposure and effectiveness of apatinib at different doses using data collected from a post-marketing phase IV study that included a broader patient population with a larger sample size. Methods: Patients with advanced or metastatic advanced gastric cancer or gastroesophageal junction adenocarcinoma who were aged 18-75 with ECOG performance status of 0-2 and failed at least two lines of chemotherapy were enrolled. Apatinib was recommended with an initial dose of 850 mg q.d orally, while the initial dose was determined at the discretion of the investigators. Administration of apatinib regarding the initial dose, duration of treatment, dose modification, average daily exposure dose (ADED) and its effect on progression-free survival (PFS) and overall survival (OS) were analyzed. Results: A total of 2004 patients were included in the intention-to-treat population. The median age was 59 (range, 19-85) years, 71.8% of patients were male, 84.2% had ECOG performance status of 0-1; 96.4% had stage IV disease, and 98.8% had metastases, among which 34.2% with more than 2 metastases. Five patients did not receive therapy. Compared to 5.5% of patients with the initial dose > 500mg, 94.1% was given at the initial dose≤500mg; 8.6% had ADED > 500mg and 91.1% had ADED ≤500mg. The median duration of treatment was 56 days. Treatment interruption and discontinuation, and dose reduction occurred in 34.4%, 24.5%, and 13.7% of patients due to adverse events, respectively. Survival analyses in the initial dose ≤500mg/ > 500mg subgroups showed median PFS of 2.6 months (95%CI 2.20-2.79) vs 2.7 months (95% CI 1.91-3.32), median OS of 5.6 months (95% CI 5.26-5.95) vs 5.9 months (95% CI 4.40-6.87). In the ADED ≤500mg/ > 500mg subgroups, the median PFS was 2.6 months (95% CI 2.14-2.76) vs 3.0 months (95% CI 2.27-3.61), and median OS was 5.7 months (95% CI 5.32-6.08) vs 6.1 months (95% CI 5.36-7.72). Conclusions: In conclusion, more than 90% of the patients received a lower dose regimen, which indicate dosage of 500mg or lower is a tolerated exposure. Furthermore, dose at 500mg or lower produced similar efficacy to that more than 500mg. Clinical trial information: NCT02426034.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e16034-e16034
Author(s):  
Jin Li ◽  
Shukui Qin ◽  
Lu Wen ◽  
Junsheng Wang ◽  
Wenying Deng ◽  
...  

e16034 Background: Apatinib, a small molecule multi-target tyrosine kinase inhibitor with high selectivity for VEGFR-2, has been approved for the treatment of advanced gastric cancer or gastroesophageal adenocarcinoma in China by significantly improving progression-free survival (PFS) and overall survival (OS). Here, we report safety and efficacy data from an open-label, single-arm, multicenter, phase IV trial of apatinib as a third-line or later line treatment for advanced gastric cancer. Methods: Eligible patients had histologically or cytologically confirmed advanced gastric cancer or gastroesophageal junction adenocarcinoma; and an Eastern Cooperative Oncology Group (ECOG) performance status of 0–2; and adequate haematological and hepatic function; and failure of at least two lines of chemotherapy. Patients received oral apatinib until disease progression, death or unacceptable toxicity. The primary endpoint was safety, and secondary endpoints included PFS and OS. Results: The intention-to-treat population (ITT) included 2004 patients. At baseline, the median age was 59 (range, 19-85) years, ECOG performance status of 0/1/2 (%) was 15.4/68.8/15.1, and stage III/IV was 3.5/96.4; 98.8% had metastases, and among which metastatic foci≤2/ > 2 was 64.5/34.2 (%), respectively. 89.6% of the patients were given apatinib 500mg as the initial does and the median treatment duration was 56 days. After a median follow-up of 126.5 days, adverse events (AEs) occurred in 95.1% of the patients and 70.3% were grade ≥3. 87.9% of the patients experienced treatment-related AEs (TRAEs), of which 51% had grade ≥3, 12.3% and 16.8% reduced dose and discontinued the treatment, respectively. 57 (2.9%) TRAEs-related deaths were reported, mainly because of gastrointestinal bleeding (16 cases), upper gastrointestinal haemorrhage (7), cerebral haemorrhage (2), and gastric perforation (1). The incidence of TRAEs of special interest was 74.3%; 38.1% of patients developed grade≥3, mainly including hypertension (26.3%), bleeding (5.1%), proteinuria (4.5%), and hand-foot syndrome (3.1%). In an ITT population, median PFS was 2.7 months (95%CI 2.23-2.79) and median OS was 5.8 months (95% CI 5.42-6.11). Conclusions: This study confirms that apatinib has a well-established and manageable safety profile and survival benefit as third or later line therapy for patients with advanced gastric cancer or gastroesophageal junction adenocarcinoma. Clinical trial information: NCT02426034.


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.


2019 ◽  
Vol 12 (2) ◽  
pp. 523-528
Author(s):  
Hirofumi Tazawa ◽  
Takahisa Suzuki ◽  
Toshiaki Komo ◽  
Haruna Kubota ◽  
Shunya Tahara ◽  
...  

Peritoneal metastasis (PM) is detected in 14% of gastric cancers at the time of initial diagnosis, with a median survival time of 4 months. A 66-year-old woman diagnosed with cT4a(SE) N2M1(LYN) cStage IV was treated with three lines of chemotherapy for a year. During the third line of chemotherapy, computed tomography (CT) scan revealed a large amount of ascites, periportal collar sign, and bilateral ureteral stenosis owing to PM. The tumor biomarkers (CEA and CA 19–9) remained elevated similar to the initial levels. The patient was administered 3 mg/kg nivolumab intravenously biweekly as the fourth line of chemotherapy. Three months after the nivolumab treatment, gastroscopy revealed an extreme reduction of the tumor size, while CT scan revealed the absence of ascites and a well-controlled tumor. There was no immune-related adverse event with nivolumab during and after the treatment, and performance status improved to 0. The patient has been alive for about 2.5 years since her first visit with her sixth line of chemotherapy (docetaxel). We report a case of advanced gastric cancer with PM that was treated successfully with nivolumab.


2013 ◽  
Vol 31 (6_suppl) ◽  
pp. 155-155 ◽  
Author(s):  
Carmel Jo Pezaro ◽  
Sylvestre Le Moulec ◽  
Laurence Albiges ◽  
Aurelius Gabriel Omlin ◽  
Yohann Loriot ◽  
...  

155 Background: Cabazitaxel, which is a tubulin-binding chemotherapy, and the CYP-17 androgen biosynthesis inhibitor abiraterone acetate (AA) are both approved for patients with metastatic castration resistant prostate cancer (CRPC) following docetaxel chemotherapy. Recent preclinical data suggest that taxanes impact AR signalling and could imply cross-resistance between new AR targeting treatments and taxane chemotherapy. The aim of this study is to evaluate the antitumor activity of cabazitaxel after AA. Methods: We retrospectively evaluated antitumor activity of cabazitaxel in patients (pts) with metastatic CRPC and progressive disease after docetaxel and AA. Radiological response by RECIST, PSA response by PCWG2 criteria and symptomatic benefit were examined. Results: 89 pts were treated with third-line cabazitaxel, after docetaxel (median 8 cycles; range: 4-12), and AA (median duration of treatment 4.8 months, range: 1-55 months). At cabazitaxel initiation median age was 68 years (range: 53-83), ECOG performance status was 0 or 1 in 70% of pts, and median PSA was 309 ng/ml (range: 3.75-9150). Bone, lymph node and visceral metastases were present in 80 pts (89%), 37 pts (41%), and 12 pts (13%) respectively. An average of 6 cycles of cabazitaxel (range 1-15) were administered. All pts had PSA data available and 44 (49%; 95% CI 39-60%) had a 50% or greater PSA decline. In the 35 pts with RECIST evaluable disease, 7 (20%; 95% CI 8-37%) had a partial response. Conclusions: In men with metastatic CRPC cabazitaxel appears to retain activity in the third-line setting following docetaxel and AA.


2017 ◽  
Vol 35 (4_suppl) ◽  
pp. 16-16 ◽  
Author(s):  
Toshifumi Yamaguchi ◽  
Satoru Iwasa ◽  
Hirokazu Shoji ◽  
Yoshitaka Honma ◽  
Atsuo Takashima ◽  
...  

16 Background: The uridine diphosphate glucuronosyltransferase (UGT) 1A1, which transforms SN-38 into SN-38 glucuronide, is a key enzyme involved in the metabolism of irinotecan. Previous studies showed that UGT1A1 genotype is related to the toxicity of irinotecan-based chemotherapy in metastatic colorectal cancer. The purpose of this study was to investigate the relationship between UGT1A1genotype and safety and efficacy of irinotecan monotherapy in patients with advanced gastric cancer. Methods: We reviewed the data of 208 patients who were tested for UGT1A1 genotype and treated with irinotecan-based chemotherapy for advanced gastric cancer from 2009 to 2014. We evaluated the efficacy and safety of irinotecan monotherapy in the three groups with wild-type (WT), single heterozygosity (SH), and homozygosity/double heterozygosity (Homo-DH) classified by the genotypes for UGT1A1*28 or UGT1A1*6. Results: A total of 117 patients received irinotecan monotherapy: 40 patients in second-line, 74 in third-line, and 3 in forth-line therapy. The UGT1A1genotype was WT in 62 patients (53.0%), SH in 41 (35.0%), and Homo-DH in 14 (12.0%). Patients’ characteristics were similar among the three groups. The initial dose of irinotecan was reduced in 10 patients (16%) with the WT genotype, in 11 (27%) with SH, and in 10 (71%) with Homo-DH. Grade 3-4 neutropenia, diarrhea, and febrile neutropenia occurred in 13/22/64%, 6/5/21%, and 2/7/50% of WT/SH/Homo-DH patients. Median time to treatment failure of second-line and third-line therapies were 2.4/2.8/3.3 months and 2.4/2.3/1.3 months in WT/SH/Homo-DH patients. Median overall survival of second-line and third-line therapy were 7.9/9.9/4.6 months and 6.9/6.3/2.8 months in WT/SH/Homo-DH patients. Conclusions: Patients with UGT1A1 Homo-DH displayed high frequency of grade 3-4 toxicities, although the initial dose of irinotecan was reduced in some patients. UGT1A1 polymorphism may be related to the efficacy of irinotecan monotherapy in second- and third-line treatments for advanced gastric cancer.


2011 ◽  
Vol 29 (4_suppl) ◽  
pp. 133-133
Author(s):  
I. Hwang ◽  
J. Kang ◽  
B. Park ◽  
S. Park ◽  
M. Jang ◽  
...  

133 Background: We performed multicenter retrospective study to evaluate the activity and the safety of a docetaxel as the third-line chemotherapy in advanced gastric cancer (AGC) patients who had undergone oxaliplatin (FOLFOX) and irinotecan (FOLFIRI)-based chemotherapy regimens. Methods: Thirty-eight patients with AGC previously treated were eligible for this study. Patients received docetaxel 30 mg/m2 +/- cisplatin 30 mg/m2 IV on day 1, 8 or docetaxel 60 mg/m2 +/- cisplatin 60 mg/m2 IV on day 1 every 3 weeks until disease progression, and responses were assessed after every two cycles according to RECIST criteria and toxicity was evaluated by NCI-CTC. Results: Thirty-two out of 38 patients were evaluable for response. A total of 95.1 cycles of chemotherapy (median 2, range 0.5–7) were administered. Relative dose intensities of docetaxel and cisplatin were 93.4% and 87.8%, respectively. The overall response rate was 15.6% and the disease control rate was 50%. With a median follow-up duration of 3.1 months (range 0.3-14.3 months), 36 patients had disease progression, and 34 patients had died at the time of analysis. The median progression-free survival was 1.8 months (95% CI, 1.3–2.3 months). The median overall survival was 3.1 months (95% CI, 2.3–3.9 months). Grade 3 or 4 hematologic toxicities included neutropenia in thirteen patients (38.3%), febrile neutropenia in four patients (11.7%). and thrombocytopenia in one patient (2.9%). Other grade 3 or 4 toxicities included neuropathy in three patients (8.8%) and mucositis in two patients (5.9%). There were three treatment-related deaths (8.8%) caused by infection associated with neutropenia. Conclusions: Salvage docetaxel chemotherapy in AGC patients failed in oxaliplatin and irinotecan-based treatment is not recommend routinely. However, selected patients with good performance status and sufficient albumin levels may have derived some survival benefits from salvage chemotherapy. No significant financial relationships to disclose.


2017 ◽  
Vol 35 (4_suppl) ◽  
pp. 185-185
Author(s):  
Naoki Fukuda ◽  
Daisuke Takahari ◽  
Hiroki Osumi ◽  
Tomohiro Matsushima ◽  
Izuma Nakayama ◽  
...  

185 Background: Ramucirumab (RAM) is a novel anti-VEGF antibody approved in 2015 in Japan. Predictive factors for RAM in combination with paclitaxel (PTX) remain largely unknown. Methods: We reviewed 77 consecutive advanced gastric cancer patients who were treated with RAM plus PTX between June 2015 and June 2016 in our institution. We evaluated treatment outcome and analyzed potential predictive factors by univariate and multivariate analyses. Results: Median age was 67 years (range 35-83) and 51 % of the patients were male. The ECOG performance status (PS) was ≥ 2 in 8 patients. 89% (69/77) patients were treated as second line chemotherapy. Objective response rate (ORR) in patients who have measurable disease was 52 % (17/33). Median progression free survival (PFS) and overall survival (OS) and was 6.0 months (95% confidence interval [CI] = 4.3-7.1) and 10.4 months (95% CI 6.8-13.6), respectively. The most frequent adverse events were peripheral neuropathy (44%), G3 ≥ neutropenia (34%), hypertension (32%) and bleeding (27%). At multivariate analysis, hypertension was independent factor for OS (Hazard ratio [HR] = 0.35, 95% CI = 0.14-0.90, P = 0.03). Also, bleeding (HR = 0.23, 95% CI = 0.09-0.55, P = 0.001) was independent factor for PFS and hypertension (HR = 0.47, 95% CI = 0.22-1.02, P = 0.06) had trend toward to show better PFS. Conclusions: RAM plus PTX showed promising efficacy for advanced gastric cancer. RAM related toxicities such as hypertension and bleeding/hemorrhage were independent factors for better outcome. Further investigation is warranted to verify our analysis.


2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 4523-4523 ◽  
Author(s):  
Hironaga Satake ◽  
Keun Wook Lee ◽  
Hyun Cheol Chung ◽  
Jeeyun Lee ◽  
Kensei Yamaguchi ◽  
...  

4523 Background: First-line treatment with pembro or pembro + chemo vs chemo alone was evaluated in patients with PD-L1 combined positive score (CPS) ≥1, HER2-negative advanced gastric cancer in the randomized, active-controlled, phase 3 KEYNOTE-062 study (NCT02494583). We present results from the Asian subpopulation receiving pembro monotherapy or chemo. Methods: Eligible patients were randomly assigned 1:1:1 to pembro 200 mg, pembro + chemo (cisplatin + 5-FU or capecitabine), or placebo + chemo every 3 weeks for ≤35 cycles (~2 years). Randomization was stratified by region, disease status, and fluoropyrimidine treatment. Primary end points for this analysis were overall survival (OS) in patients with CPS ≥1 and patients with CPS ≥10; progression-free survival (PFS) and objective response rate (ORR) were exploratory end points. Data cutoff was March 26, 2019. Results: Globally, 256 patients received pembro monotherapy and 250 received chemo. Pembro was noninferior to chemo for OS in CPS ≥1 per prespecified margins (median OS, 10.6 vs 11.1 months, respectively; HR [99.2% CI], 0.91 [0.69-1.18]). In the Asian population 62 patients received pembro and 61 received chemo; 26 and 22 had CPS ≥10 (Table). Compared with the global population, Asian patients had a higher proportion of ECOG performance status 0, more diagnoses of stomach cancer, and a greater proportion with 0-2 metastatic sites. Median OS was longer with pembro than chemo using both CPS cutoffs (HR [95% CI]: CPS ≥1, 0.54 [0.35-0.82]; CPS ≥10, 0.43 [0.21-0.89]); 12- and 24-month OS rates were higher for pembro using both CPS cutoffs (12-month OS: CPS ≥1, 69% vs 54%; CPS ≥10, 81% vs 68%; 24-month OS: CPS ≥1, 45% vs 23%; CPS ≥10, 54% vs 27%). The HR (95% CI) for PFS was 1.11 (0.76-1.64) for CPS ≥1 and 0.71 (0.36-1.39) for CPS ≥10. Conclusions: In Asian patients with advanced gastric cancer, OS favored pembro in patients with CPS ≥1 and CPS ≥10. Clinical trial information: NCT02494583 . [Table: see text]


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 4555-4555
Author(s):  
N. Nakayama ◽  
W. Koizumi ◽  
T. Sasaki ◽  
S. Tanabe ◽  
K. Nishimura ◽  
...  

4555 Background: Our previous phase I study (Oncology 2008, 75:1–7) provided evidence that combination chemotherapy with docetaxel, cisplatin, and S-1 (DCS) is effective and well tolerated in patients with advanced gastric cancer. The present multicenter phase II study was conducted to confirm the efficacy and toxicity of DCS in advanced gastric cancer. Methods: Eligibility criteria included a histologically proved diagnosis of gastric adenocarcinoma with at least one measurable metastatic lesion, no previous treatment for gastric cancer except for surgery, an ECOG performance status of 0 to 2, and adequate organ function. Docetaxel (40 mg/m2) and cisplatin (70–60 mg/m2) were given intravenously on day 1, and S-1 was given orally at a dose of 40 mg/m2 twice daily from days 1 to day 14 of a 28-day cycle. Patients received a maximum of 6 cycles. Subsequently, patients were given repeated cycles of S-1 plus docetaxel (DS). The primary endpoint was the objective response rate. Results: 59 patients (47 men, 12 women) were enrolled. The median age was 62 (range: 35–75) years. PS 0/1/2 was 40/18/1. The median number of treatment cycles was 7 (DCS 6+DS 1: range, 1–20). Because myeloid suppression and renal dysfunction developed during the study, we lowered the recommended dose of cisplatin from 70 mg/m2 to 60 mg/m2. The dose of cisplatin was 70 mg/m2 in 19 patients and 60 mg/m2 in 40. The overall response rate was 81.3% (48/59; 95% CI, 80.7–91.2). The response rates with cisplatin 70 mg/m2 and 60 mg/m2 were 78.9% (95% CI, 60.5–97.2) and 82.5% (95% CI, 70.7–94.2), respectively. Tumor down-staging was achieved in 9 (18.7%) of the 48 patients who responded to treatment. The median survival time and median progression-free survival were not reached. Grade 3 or 4 major toxicity comprised leukopenia (44.0%), neutropenia (72.8%), anemia (15.2%), febrile neutropenia (13.5%), anorexia (6.7%), nausea (5.1%), vomiting (5.1%), fatigue (1.6%), and diarrhea (5.1%). There was one treatment-related death caused by the perforation of the primary tumor. This patient refused surgery. Conclusions: DCS was a well-tolerated regimen with a high response rate in patients with advanced gastric cancer. Cisplatin at a dose of 60 mg/m2 was considered adequately effective. No significant financial relationships to disclose.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. e14074-e14074
Author(s):  
Tetsuya Kusumoto ◽  
Kenkichi Hashimoto ◽  
Keiji Yoshinaga ◽  
Eiji Kusumoto ◽  
Yoshihisa Sakaguchi ◽  
...  

e14074 Background: The ATTRACTION-2 study found that nivolumab showed a significant survival benefit for the patients with unresectable metastatic or locally advanced gastric cancer (AGC) following more than 2 regimens. Based on this trial, nivolumab was currently proved to be one of the most effective regimens for the patients with AGC as the 3rd-line treatment in Japan. We herein examined the clinical significance and validation of nivolumab as late line chemotherapy in patients with AGC. Methods: In October 2017 to December 2018, 26 patients received nivolumab monotherapy in our institute. We conducted a retrospective review of the data of 23 patients with AGC who received more than 2 cycles of nivolumab following the standard chemotherapy regimens including fluoropyrimidines, platinum derivatives and taxanes. Adverse events, tumor responses, and survival data were analyzed. Results: Only 2 patients enrolled here showed ECOG performance status (PS) 2 in the study. The time to treatment failure of them were shorter than those of the other patients with PS 0/1. Four patients quitted the continuation of nivolumab except for the progressive disease, due to non-hematological toxicities higher than grade 3 including myositis, hypothyroidism, dermatitis and liver dysfunction. The rate of hematological toxicities, which showed severe anemia of higher than grade 3 was 21.7%. The ORR and the DCR were 4.3% and 52.3% for the patients in this study. The survival data showed that the median PFS and the OS after nivolumab administration were 75 days and 274 days, respectively. Conclusions: Nivolumab monotherapy might be one of the best regimens for Japanese patients with AGC as the late line treatment following the standard chemotherapy.


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