Clinical trial NCT01388790: Cetuximab in Combination With S-1 and Cisplatin in Gastric Cancer
Official title: Open-label, Single-arm, Multicenter Phase II Trial Investigating Cetuximab in Combination With S-1 and Cisplatin as First-line Treatment for Patients With Advanced Gastric Adenocarcinoma Including Adenocarcinoma of the Gastroesophageal Junction
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE2
Conditions: Gastric Cancer
Keywords: Gastric Cancer
Cetuximab
EMD271786
TS-1
Cisplatin
Lead sponsor: Merck KGaA, Darmstadt, Germany
Sponsor class: INDUSTRY
First posted: 2011-07-07
Enrollment: 40
Sex: ALL
Minimum age (years): 20
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: This open-label, single-arm, multicenter, Phase 2 trial will treat at least 40 participants with advanced gastric adenocarcinoma including adenocarcinoma of the gastroesophageal junction (GEJ) who have not previously received systemic chemotherapy for this setting.

All eligible participants will receive the combination of cetuximab plus S-1 (a combination of tegafur, gimeracil, and oteracil) and cisplatin.


Eligibility criteria: Inclusion Criteria:

* Written informed consent and agreement with medically accepted contraception (in participants with conception potential) are obtained
* Japanese participants aged greater than or equal to 20 years
* Histologically confirmed adenocarcinoma of the stomach or GEJ (adenocarcinomas of the esophagogastric junction types I to III according to Siewert's classification) in Stage M0 (unresectable advanced) or Stage M1 (unresectable metastatic) of the disease
* Archived tumor material sample for at least subsequent standardized epidermal growth factor receptor (EGFR) expression and Kirsten-rat sarcoma (KRAS) mutation assessments
* At least one radiographically documented measurable lesion in a previously non-irradiated area according to the RECIST v 1.0
* Eastern Cooperative Oncology Group - performance status (ECOG-PS) 0 to 1
* Estimated life expectancy greater than 12 weeks
* Renal, liver and hematopoietic function as defined in the protocol.
* Sodium and potassium within normal limits or as defined in the protocol
* Other protocol defined inclusion criteria could apply

Exclusion Criteria:

* Prior therapies: prior treatment with an antibody or molecule targeting EGFR- and/or vascular endothelial growth factor (VEGF) receptor-related signaling pathways; chemotherapies; or radiotherapies, major surgeries, and any investigational drugs in the 30 days before the start of trial treatment
* Concurrent chronic systemic immune or hormone therapy not indicated in this trial protocol any contraindication to treatment with cetuximab and cisplatin, or any treatments with prohibited concomitant drugs
* Brain metastasis and/or leptomeningeal disease
* Clinically relevant coronary artery disease (New York Heart Association \[NYHA\] functional angina classification III/IV), congestive heart failure (NYHA III/IV), clinically relevant cardiomyopathy, history of myocardial infarction in the last 12 months, or high risk of uncontrolled arrhythmia
* Chronic diarrhea or short bowel syndrome
* Known Human Immunodeficiency Virus (HIV) infection, active or chronic carrier of hepatitis B virus (HBV) (HBV antigen positive or HBV deoxyribonucleic acid (DNA) positive) or hepatitis C virus (HCV) (HCV antibody positive)
* Pregnancy or lactation period
* Concurrent treatment with a non-permitted drug (any other chemotherapy, systemic anticancer therapy or immunotherapy)
* Previous malignancy other than gastric cancer in the last 5 years Medical or psychological conditions that would not permit the participant to complete the trial or sign the Informed Consent Form (ICF)
* Legal incapacity or limited legal capacity
* Other protocol defined exclusion criteria could apply

Primary outcomes:
measure: Best Overall Response (BOR) Rate - Independent Review Committee (IRC) Assessments
timeFrame: Evaluations were performed every 6 weeks until disease progression, reported between day of first participant treated, that is July 2011, until cut-off date, (14 August 2012)
Secondary outcomes:
measure: Median Progression-free Survival (PFS) Time - Independent Review Committee (IRC) Assessments
timeFrame: Time from start of treatment to disease progression, death or last tumor assessment, reported between day of first participant treated, that is July 2011, until cut-off date, (14 August 2012)
Other outcomes:
Locations:
city: Darmstadt
country: Germany
facility: Please contact the Merck KGaA Communication Center located in
Study officials:
affiliation: Merck Serono Co., Ltd., Japan
name: Masataka Ota, MD
role: STUDY_DIRECTOR
References:
citation: Yamaguchi K, Fuse N, Komatsu Y, Fujii H, Hironaka S, Omuro Y, Muro K, Yasui H, Ueda S, Nishina T, Watanabe M, Ohtsu A. Phase II study of cetuximab plus S-1/cisplatin therapy in Japanese patients with advanced gastric cancer. Jpn J Clin Oncol. 2021 May 28;51(6):879-885. doi: 10.1093/jjco/hyaa276.