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Completed

NCT Number: NCT01388790

Cetuximab in Combination With S-1 and Cisplatin in Gastric Cancer

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.

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Key information

Conditions

Gastric Cancer Digestive System Diseases Digestive System Neoplasms Gastrointestinal Diseases Gastrointestinal Neoplasms Neoplasms Neoplasms by Site Stomach Diseases Stomach Neoplasms

Age range

20 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Please contact the Merck KGaA Communication Center located in

Darmstadt, Germany

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Cetuximab

Drug

Single first dose of cetuximab 400 milligram per square meter (mg/m^2) will be administered intravenously followed by once weekly subsequent intravenous infusion of cetuximab 250 mg/m^2 in each 5-week treatment cycle until disease progression, unacceptable toxicity, or withdrawal of consent.

Cisplatin

Drug

Cisplatin 60 mg/m^2 will administered as intravenous infusion on Day 8 of each 5-week cycle maximum up to 8 cycles until disease progression, unacceptable toxicity, or withdrawal of consent

S-1

Drug

S-1, a combination of tegafur, gimeracil, and oteracil will be administered intravenously at a dose of 40 to 60 mg/m^2 orally twice daily for first three consecutive weeks of 5-week cycle until disease progression, unacceptable toxicity, or withdrawal of consent.

Primary outcomes

  1. Best Overall Response (BOR) Rate - Independent Review Committee (IRC) Assessments

    Time frame: 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)

    The best overall response rate is defined as the percentage of participants having achieved confirmed complete response plus partial response as the best overall response according to radiological assessments (based on Response Evaluation Criteria in Solid Tumors version 1.0 [RECIST v 1.0] criteria).

Secondary outcomes

  1. Median Progression-free Survival (PFS) Time - Independent Review Committee (IRC) Assessments

    Time frame: 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)

    The PFS time is defined as the duration from start of treatment until radiological progression (based on RECIST v 1.0 criteria) or death due to any cause within 60 days of the last tumor assessment or start of treatment. Participants without event are censored on the date of last tumor assessment.

Sponsors and collaborators

Lead sponsor

Merck KGaA, Darmstadt, Germany

Industry

Registry information

Official study 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

Important dates

Study start
2011
Primary completion
2012
Study completion
2013
First posted
Jul 7, 2011
Registry last updated
Nov 20, 2013

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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