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5-Fluorouracil

Phase 1

Gastric Adenocarcinoma or Gastroesophageal Junction Adenocarcinoma or Esophageal Carcinoma | Small molecule | Oncology |Halozyme Therapeutics, Inc.|Last Updated: Dec 15, 2025

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedACTIVE_CONTROLLEDBiomarker
Total Trials1
Total Enrollment214
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT03281369A Study of Multiple Immunotherapy-Based Treatment Combinations in Patients With Locally Advanced Unresectable or Metastatic Gastric or Gastroesophageal Junction Cancer (G/GEJ) or Esophageal Cancer (Morpheus-Gastric and Esophageal Cancer)PHASE1 COMPLETED 214Oct 13, 2017Oct 9, 2025Dec 15, 202528 United States, Australia +5
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Study Endpoints
Primary Endpoints
Percentage of Participants With Objective Response, as Determined by Investigator According to Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 (v1.1)
From Randomization until disease progression or loss of clinical benefit (up to approximately 3-6 years)
Percentage of Participants with Adverse Events (AEs)
From first study treatment administration until 30 days after the last dose or until initiation of new systemic anti-cancer therapy, whichever occurs first (up to approximately 3-6 years)
For Arm 1L-A : Percentage of Participants with Serious and Non-serious Treatment-related AEs
During the safety run-in phase up to 28 days
Secondary Endpoints
Progression-Free Survival (PFS), as Determined by Investigator According to RECIST v1.1
From randomization up to the first occurrence of disease (up to approximately 3-6 years)
Overall Survival (OS)
From randomization up to death from any cause (up to approximately 3-6 years)
Percentage of Participants Who Are Alive at Month 6 and at Month 12
Month 6, Month 12
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
1L-Control: mFOLFOX6 (Gastric Cancer)ACTIVE_COMPARATORParticipants in the 1L Gastric Cancer Control arm will receive modified FOLFOX6 (mFOLFOX6) treatment consisting of 5-fluorouracil (5-FU), leucovorin (folinic acid), and oxaliplatin. Participants who progressed on treatment may have the option of receiving Atezolizumab + Cobimetinib treatment, provided they meet the eligibility criteria. No longer enrolling participants as of June 2018.
1L-A: mFOLFOX6 + Atezo + Cobi (Gastric Cancer)EXPERIMENTALParticipants in the 1L-A Gastric Cancer arm will receive mFOLFOX6 treatment consisting of 5-FU, leucovorin and oxaliplatin in combination with atezolizumab plus cobimetinib. No longer enrolling participants as of June 2018.
1L-A2: Atezo+mFOLFOX6 followed by Atezo+Cobi (Gastric Cancer)EXPERIMENTALParticipants in the 1L-A2 Gastric Cancer arm will receive mFOLFOX6 treatment consisting of 5-FU, leucovorin and oxaliplatin in combination with atezolizumab during cycles 1 and 2 followed by atezolizumab plus cobimetinib during cycles 3 and beyond. No longer enrolling participants as of June 2018.
2L-Control: Ramucirumab + Paclitaxel (Gastric Cancer)ACTIVE_COMPARATORParticipants in the 2L Gastric Cancer Control arm received ramucirumab plus paclitaxel. Participants who progressed on treatment had the option of receiving Atezolizumab + Cobimetinib treatment, provided they met the eligibility criteria. Enrollment completed as of October 2019.
2L-1: Atezo + Cobi (Gastric Cancer)EXPERIMENTALParticipants in the 2L-1 Gastric Cancer arm received atezolizumab in combination with cobimetinib. Enrollment completed as of October 2019.
2L-2: Atezo + PEGPH20 (Gastric Cancer)EXPERIMENTALParticipants in the 2L-2 Gastric Cancer arm received atezolizumab in combination with PEGylated recombinant human hyaluronidase (PEGPH20). Participants who progressed on treatment had the option of receiving Atezolizumab + Cobimetinib treatment, provided they met the eligibility criteria. Enrollment completed as of October 2019.
2L-3: Atezo + BL-8040 (Gastric Cancer)EXPERIMENTALParticipants in the 2L-3 Gastric Cancer arm received atezolizumab in combination with BL-8040. Participants who progressed on treatment had the option of receiving Atezolizumab + Cobimetinib treatment, provided they met the eligibility criteria. Enrollment completed as of October 2019.
2L-4: Atezo + Linagliptin (Gastric Cancer)EXPERIMENTALParticipants in the 2L-4 Gastric Cancer arm received atezolizumab in combination with linagliptin. Participants who progressed on treatment had the option of receiving Atezolizumab + Cobimetinib treatment, provided they met the eligibility criteria. Enrollment completed as of October 2019.
1L-1:Atezo+Tiragolumab+Cisplatin+5FU(Esophageal Cancer Cohort)EXPERIMENTALParticipants in the 1L-1 Esophageal Cancer arm will receive atezolizumab in combination with tiragolumab and chemotherapy.
1L-2: Atezo+Cisplatin+5-FU (Esophageal Cancer Cohort)EXPERIMENTALParticipants in the 1L-2 Esophageal Cancer arm will receive atezolizumab in combination with chemotherapy.
1L-Control: Cisplatin+5-FU (Esophageal Cancer Cohort)ACTIVE_COMPARATORParticipants in the 1L-Control Eophageal Cancer arm will receive chemotherapy.
1L-3: Atezo+Tiragolumab (Esophageal Cancer Cohort)EXPERIMENTALParticipants in the 1L-3 Esophageal Cancer arm will receive atezolizumab + tiragolumab treatment. Participants from the cisplatin + 5-FU esophageal cancer cohort arm may be permitted to enroll in this arm if they progress after receiving chemotherapy.
Interventions
NameTypeDescription
5-Fluorouracil (5-FU)DRUG5-FU 2400 milligrams per square meter (mg/m\^2) by continuous intravenous (IV) infusion over 46 hours on Days 1 and 2 and Days 15 and 16 of every 28-day cycle.
LeucovorinDRUGLeucovorin: 100 mg/m\^2 IV over 2 hours on Days 1 and 15 of every 28-day cycle.
OxaliplatinDRUGOxaliplatin: 100 mg/m\^2 administered by IV infusion over 2 hours on Days 1 and 15 of every 28-day cycle.
AtezolizumabDRUGAtezolizumab: 840 mg by IV infusion on Days 1 and 15 of every 28-day cycle.
CobimetinibDRUGCobimetinib: 60 mg by mouth once a day on Days 1-21 of every 28-day cycle
RamucirumabBIOLOGICALRamucirumab: 8 mg/kg administered by IV infusion over 60 minutes on Days 1 and 15 of every 28-day cycle.
PaclitaxelDRUGPaclitaxel: 80 mg/m\^2 administered by IV infusion on Days 1, 8, and 15 of every 28-day cycle.
PEGylated recombinant human hyaluronidase (PEGPH20)BIOLOGICALPEGPH20: 3 micrograms per kilogram (mcg/kg) administered by IV infusion on Days 1, 8, and 15 of every 21-day cycle.
BL-8040DRUGBL-8040: 1.25 mg/kg administered by subcutaneous (SC) injection on Days 1-5 during the 5-day priming period prior to Cycle 1; 1.25 mg/kg administered by SC injection three times a week (Days 1, 3, 5, 8, 10, 12, 15, 17, and 19 of every 21-day cycle).
LinagliptinDRUGLinagliptin: 5 mg orally once a day of every 21-day cycle.
CisplatinDRUGCisplatin: 80 mg/m\^2 administered by IV infusion on Day 1 of each 21 day cycle. Treatment will be capped after 6 doses.
TiragolumabDRUGTiragolumab: 600 mg administered by IV infusion on Day 1 of every 21 day cycle.
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites28

Inclusion Criteria: Gastric Cancer Cohorts Inclusion Criteria: * Age \>/= 18 years; * Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1; * Life expectancy \>/= 3 months, as determined by the investigator; * Histologically or cytologically confirmed locally advanced unresectabl...

Countries:United StatesAustraliaIsraelSouth KoreaSpainTaiwanUnited Kingdom
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