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Andecaliximab With mFOLFOX6 as First Line Treatment for Advanced Gastric or Gastroesophageal Junction Adenocarcinoma

Phase 3
Completed
Conditions
Gastric Adenocarcinoma
Interventions
Registration Number
NCT02545504
Lead Sponsor
Gilead Sciences
Brief Summary

The primary objective of this study is to compare the efficacy of andecaliximab (GS-5745) versus placebo in combination with modified fluorouracil (5-FU), leucovorin (LV), and oxaliplatin (OXA) (mFOLFOX6) as measured by overall survival.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
432
Inclusion Criteria
  • Adults with histologically confirmed adenocarcinoma of the stomach or gastroesophageal junction that is inoperable, locally advanced or metastatic and not amenable to curative therapy
  • Adequate hematologic, liver, coagulation and kidney function
  • Eastern Cooperative Oncology Group (ECOG) ≤ 1
  • Evaluable disease per Response Evaluation Criteria in Solid Tumors (RECIST) v 1.1

Key

Exclusion Criteria
  • Previous chemotherapy for locally advanced or metastatic gastric cancer.
  • Human Epidermal Growth Factor Receptor 2 (HER2)-positive gastric cancer
  • HIV, hepatitis B virus (HBV), or hepatitis C virus (HCV) infection
  • Pregnant or breast feeding women
  • Individuals with known or suspected central nervous system metastases or individuals requiring chronic daily treatment with oral corticosteroids
  • Grade ≥ 2 peripheral neuropathy

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
PlaceboPlaceboPlacebo plus mFOLFOX6 (LV+5-FU+OXA) during Cycles 1-6, followed by placebo plus LV+5-FU during subsequent cycles
Placebo5-fluorouracilPlacebo plus mFOLFOX6 (LV+5-FU+OXA) during Cycles 1-6, followed by placebo plus LV+5-FU during subsequent cycles
PlaceboOxaliplatinPlacebo plus mFOLFOX6 (LV+5-FU+OXA) during Cycles 1-6, followed by placebo plus LV+5-FU during subsequent cycles
AndecaliximabLeucovorinAndecaliximab plus mFOLFOX6 (LV+5-FU+OXA) during Cycles 1-6, followed by andecaliximab plus LV+5-FU during subsequent cycles
Andecaliximab5-fluorouracilAndecaliximab plus mFOLFOX6 (LV+5-FU+OXA) during Cycles 1-6, followed by andecaliximab plus LV+5-FU during subsequent cycles
AndecaliximabOxaliplatinAndecaliximab plus mFOLFOX6 (LV+5-FU+OXA) during Cycles 1-6, followed by andecaliximab plus LV+5-FU during subsequent cycles
PlaceboLeucovorinPlacebo plus mFOLFOX6 (LV+5-FU+OXA) during Cycles 1-6, followed by placebo plus LV+5-FU during subsequent cycles
AndecaliximabAndecaliximabAndecaliximab plus mFOLFOX6 (LV+5-FU+OXA) during Cycles 1-6, followed by andecaliximab plus LV+5-FU during subsequent cycles
Primary Outcome Measures
NameTimeMethod
Overall Survival (OS)Andecaliximab + mFOLFOX6 median follow-up at the time of final analysis: 19.43 months; Placebo + mFOLFOX6 median follow-up at the time of the final analysis: 19.45 months

OS was defined as the time interval from the date of randomization to death from any cause.

Secondary Outcome Measures
NameTimeMethod
Progression-free Survival (PFS)Andecaliximab + mFOLFOX6 median follow-up at the time of the final analysis: 18.64 months; Placebo + mFOLFOX6 median follow-up at the time of the final analysis: 18.74 months

PFS was defined as the interval of time from the date of randomization to the earlier of the first documentation of definitive disease progression or death from any cause.

Objective Response Rate (ORR)Up to 135.4 weeks at the time of final analysis

ORR was defined as the percentage of participants who achieve a complete response (CR) or partial response (PR) as assessed by Response Evaluation Criteria In Solid Tumors (RECIST) v1.1. CR was defined as the disappearance of all target lesions and disappearance of all non-target lesions and normalization of tumor marker level. PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.

Percentage of Participants Experiencing Treatment-emergent Adverse Events (TEAEs)First dose date up to the last dose date (maximum:161.7 weeks) plus 30 to 55 days

An adverse event (AE) is any untoward medical occurrence in a clinical study participant administered a medicinal product, which does not necessarily have a causal relationship with the treatment. TEAEs are events in a given study period that meet any of the following criteria: Any AE with onset date of on or after andecalizimab/placebo start date and no later than 30 days after permanent discontinuation of all study treatment (andecaliximab/placebo and chemotherapy) or Any AEs with onset date of on or after the andecaliximab/placebo start date and no later than 55 days after permanent discontinuation of andecaliximab/placebo or AEs leading to discontinuation of andecaliximab/placebo.

Percentage of Participants With Clinically Relevant Treatment-emergent Laboratory AbnormalitiesFirst dose date up to the last dose date (maximum: 161.7 weeks) plus 30 to 55 days

Treatment-emergent laboratory abnormalities were graded per Common Terminology Criteria for Adverse Events (CTCAE), Version 4.03 where 0=None, 1=Mild, 2=Moderate, 3=Severe, 4=Potentially Life Threatening. Treatment-emergent laboratory abnormalities are defined as values that increase at least 1 toxicity grade from baseline at any post-baseline time point, up to 30 days after the last dose of all study treatment, or 55 days after the last dose of andecaliximab/placebo for participants who permanently discontinued all study treatments. If the relevant baseline laboratory value is missing, then any abnormality of at least Grade 1 was considered treatment-emergent.

Trial Locations

Locations (134)

Scripps Green Hospital

🇺🇸

La Jolla, California, United States

University of Southern California

🇺🇸

Los Angeles, California, United States

UCLA Jonsson Comprehensive Cancer Center

🇺🇸

Los Angeles, California, United States

Innovative Clinical Research Institute

🇺🇸

Whittier, California, United States

Cancer Center of Central Connecticut

🇺🇸

Plainville, Connecticut, United States

Omega Research Consultants LLC

🇺🇸

DeBary, Florida, United States

Edward Hospital & Health Services

🇺🇸

Naperville, Illinois, United States

Parkview Hospital

🇺🇸

Fort Wayne, Indiana, United States

Indiana University Goshen Center for Cancer Care

🇺🇸

Goshen, Indiana, United States

Ochsner Clinic Foundation

🇺🇸

New Orleans, Louisiana, United States

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Scripps Green Hospital
🇺🇸La Jolla, California, United States

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