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Bemarituzumab

Phase 3

Gastric Cancer | Small molecule | Oncology |Amgen Inc.|Last Updated: May 27, 2026

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
RandomizedDouble-BlindCONTROLLEDDMCBiomarker
Total Trials4
Total Enrollment1,289
FDA Designations
No designations recorded
Clinical Trials (4)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05111626Bemarituzumab Plus Chemotherapy and Nivolumab Versus Chemotherapy and Nivolumab for FGFR2b Overexpressed Untreated Advanced Gastric and Gastroesophageal Junction Cancer.PHASE3 ACTIVE NOT_RECRUITING 515Mar 14, 2022Jan 29, 2027Dec 15, 2025348 United States, Argentina +27
NCT05052801Bemarituzumab or Placebo Plus Chemotherapy in Gastric Cancers With Fibroblast Growth Factor Receptor 2b (FGFR2b) OverexpressionPHASE3 COMPLETED 547Mar 7, 2022Apr 26, 2026May 27, 2026300 United States, Argentina +35
NCT03694522A Study of Bemarituzumab (FPA144) Combined With Modified FOLFOX6 (mFOLFOX6) in Gastric/Gastroesophageal Junction CancerPHASE2 COMPLETED 155Sep 14, 2018May 13, 2022Feb 28, 2024189 United States, Australia +16
NCT05322577A Study Evaluating Bemarituzumab in Combination With Other Anti-cancer Therapies in Subjects With Previously Untreated Advanced Gastric or Gastroesophageal Junction Cancer.PHASE1 ACTIVE NOT_RECRUITING 72May 17, 2022Aug 12, 2026Dec 5, 202542 United States, Japan +3
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Study Endpoints
Primary Endpoints
Part 1: Number of Participants Who Experienced DLTs
28 days
Part 1: Number of Participants Who Experienced One or More Treatment-Emergent Adverse Events (TEAEs)
Up to 4.5 years
Part 1: Number of Participants Who Experienced One or More Related TEAEs
Up to 4.5 years
Part 1: Number of Participants With Clinically Significant Changes in Vital Signs
Up to 4.5 years
Part 1: Number of Participants With Clinically Significant Changes in Visual Acuity
Up to 4.5 years
Part 1: Number of Participants With Clinically Significant Changes in Physical Examinations
Up to 4.5 years
Part 1: Number of Participants with Clinically Significant Changes in Clinical Laboratory Tests
Up to 4.5 years
Part 2: Overall Survival in FGFR2b ≥ 10% 2+/3+ Tumor Cell Staining Participants
Up to 4.5 years
Overall Survival
Up to approximately 3.5 years

Overall survival in FGFR2b ≥ 10% 2+/3+ tumor cell staining participants

Progression-Free Survival (PFS)
From randomization until the primary analysis data cut-off date of 23 September 2020; median time on follow-up was 10.9 months.

PFS was defined as time from randomization until the date of radiographic disease progression based on investigator assessment using Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 or death from any cause, whichever came first. PFS was analyzed using Kaplan-Meier methods. Participants with no progression or death, or who started new anticancer therapy before documented progression or death without documented progression, or who had ≥ 2 consecutive missing tumor assessments before documented progression or death without documented progression were censored on the date of last adequate tumor assessment. Participants with no baseline tumor assessment, were censored at the date of randomization. The primary efficacy analysis was pre-specified to be conducted after at least 84 PFS events were observed.

Part 1: Number of Participants Who Experience a Dose-limiting Toxicity (DLT)
Day 1 up to Day 21
Part 1: Number of Participants Who Experience a Treatment-emergent Adverse Event (TEAE)
Day 1 to end of treatment (up to approximately 1 year)
Part 2: Objective Response (OR) as per Response Evaluation Criteria in Solid Tumors (RECIST v1.1)
Up to 30 Months
Secondary Endpoints
Part 1: Objective Response (OR)
Up to 4.5 years
Part 1: Duration of Response (DoR)
Up to 4.5 years
Part 1: Disease Control Rate (DCR)
Up to 4.5 years
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Part 1 Safety Lead-in: Bemarituzumab with mFOLFOX6 and NivolumabEXPERIMENTALParticipants will be administered bemarituzumab at different doses with mFOLFOX6 and nivolumab to determine the recommended phase 3 dose (RP3D) based on occurrence of dose-limiting toxicities (DLTs), and on an evaluation of the overall safety, tolerability, and pharmacokinetics (PK).
Part 2: Bemarituzumab with chemotherapy (mFOLFOX6 or CAPOX) and NivolumabEXPERIMENTALParticipants will be administered bemarituzumab at the RP3D determined from Part 1 in combination with mFOLFOX6 and nivolumab on a 14-day cycle. Or participants will be administered bemarituzumab in combination with CAPOX and nivolumab on a 21-day cycle.
Part 2: Placebo with chemotherapy (mFOLFOX6 or CAPOX) and NivolumabPLACEBO_COMPARATORParticipants will be administered placebo comparator in combination with mFOLFOX6 and nivolumab on a 14-day cycle. Or participants will be administered placebo comparator in combination with CAPOX and nivolumab on a 21-day cycle.
Bemarituzumab with mFOLFOX6EXPERIMENTAL -
Placebo with mFOLFOX6ACTIVE_COMPARATOR -
Bemarituzumab + mFOLFOX6EXPERIMENTALParticipants received 15 mg/kg bemarituzumab administered every 2 weeks (Q2W) with a single additional bemarituzumab 7.5 mg/kg dose on cycle 1 day 8. Participants also received mFOLFOX6 chemotherapy administered Q2W. Treatment continued until unacceptable toxicity, disease progression, or death.
Placebo + mFOLFOX6PLACEBO_COMPARATORParticipants received placebo for bemarituzumab administered every 2 weeks with a single additional placebo dose on cycle 1 day 8. Participants also received mFOLFOX6 chemotherapy administered Q2W. Treatment continued until unacceptable toxicity, disease progression, or death.
Part 1 Cohort A: Bemarituzumab with CAPOXEXPERIMENTAL -
Part 1 Cohort C: Bemarituzumab with CAPOX and NivolumabEXPERIMENTAL -
Part 1 Cohort D: Bemarituzumab with SOX and NivolumabEXPERIMENTAL -
Part 2: Bemarituzumab with SOX and Nivolumab.EXPERIMENTAL -
Interventions
NameTypeDescription
BemarituzumabDRUGBemarituzumab will be administered as intravenous (IV) infusion.
NivolumabDRUGNivolumab will be administered as IV infusion.
ChemotherapyDRUGmFOLFOX6: 5-fluorouracil, leucovorin, and oxaliplatin will be administered as IV infusion. OR CAPOX: oxaliplatin will be administered as IV infusion and capecitabine will be administered orally.
PlaceboOTHERPlacebo will be administered as IV infusion.
mFOLFOX6DRUGmFOLFOX6 administered as a combination of oxaliplatin and leucovorin as IV infusions. 5-FU administered as bolus followed by additional administration as IV infusion.
Modified FOLFOX6DRUGmFOLFOX6 regimen consists of the following: * Oxaliplatin 85 mg/m² IV infusion over 120 minutes * Leucovorin 400 mg/m² IV infusion over 120 minutes, or 200 mg/m² levo-leucovorin if leucovorin is unavailable * 5-fluorouracil (5-FU) 400 mg/m² bolus over approximately 5 minutes then 5-FU 2400 mg/m² as a continuous IV infusion over approximately 48 hours
CAPOXDRUGCAPOX administered as a combination of oxaliplatin as an IV infusion and capecitabine orally as tablets.
SOXDRUGSOX administered as a combination of oxaliplatin as an IV infusion and S-1 orally.
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Eligibility Criteria
Age Range18 Years — 100 Years
SexALL
Healthy VolunteersNo
Study Sites348

Inclusion Criteria Part 1 and Part 2: * Adult with unresectable, locally advanced or metastatic (not amenable to curative therapy) histologically documented gastric or gastroesophageal junction adenocarcinoma * Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1 * Measurable dise...

Countries:United StatesArgentinaAustraliaAustriaBelgiumBrazilBulgariaCanadaChileChinaColombiaCzechiaFranceGermanyHong KongHungaryIsraelItalyJapanPolandPortugalRomaniaSingaporeSouth KoreaSpainSwitzerlandTaiwanThailandUnited KingdomDenmarkEstoniaGreeceIrelandLatviaLithuaniaMalaysiaMexicoNorwayPeruSouth AfricaSwedenTurkey (Türkiye)
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Competitive Landscape -Gastric Cancer 118 trials
CompanyTickerTrialsLead PhaseDrugs
AstraZeneca PLCAZN16PHASE3AZD0901, Ramucirumab+ paclitaxel, Paclitaxel, Docetaxel, Irinotecan
BeOne Medicines Ltd. Sponsored ADRONC4PHASE3Tislelizumab, Cisplatin, Leucovorin, 5-fluorouracil, Oxaliplatin
Jazz Pharmaceuticals Public Limited CompanyJAZZ3PHASE3Zanidatamab, Tislelizumab, Trastuzumab, Capecitabine, Oxaliplatin
Merck & Co., Inc.MRK1PHASE3pembrolizumab, cisplatin, 5-FU, leucovorin, levoleucovorin
Amgen Inc.AMGN2PHASE3Bemarituzumab, Nivolumab, Chemotherapy, CAPOX, SOX
Arcus Biosciences, Inc.RCUS2PHASE3Domvanalimab, Zimberelimab, Capecitabine, Fluorouracil, Leucovorin
Bristol-Myers Squibb CompanyBMY7PHASE2Pumitamig, Folfox, Capox, Nivolumab, BMS-986340
Pfizer Inc.PFE7PHASE2tucatinib, trastuzumab, oxaliplatin, leucovorin, fluorouracil
Agenus Inc.AGEN2PHASE3Balstilimab, Botensilimab, Folfox Protocol, XELOX, Nivolumab
AbbVie, Inc.ABBV2PHASE2Telisotuzumab Adizutecan, Budigalimab, Fluorouracil, Leucovorin, Oxaliplatin
Eli Lilly and CompanyLLY2PHASE2Ramucirumab, Paclitaxel, LY4337713
Compass Therapeutics, Inc.CMPX1PHASE2CTX-009, Paclitaxel
ALX Oncology Holdings, Inc.ALXO1PHASE2Evorpacept, Trastuzumab, Ramucirumab, Paclitaxel
GE Healthcare Technologies Inc.GEHC1PHASE2GEH300079 Positron-Emission Tomography /Computed Tomography
ImmunityBio IncIBRX1PHASE2N-803 + Pembrolizumab
Apollomics Inc. Class AAPLM1PHASE2APL-101
Exelixis, Inc.EXEL2PHASE1cabozantinib, atezolizumab, Cabozantinib, Durvalumab, Tremelimumab
Inhibrx Biosciences, Inc.INBX1PHASE1INBRX-106 - Hexavalent OX40 agonist antibody, pembrolizumab, Carboplatin AUC-5, Pemetrexed /m2, Cisplatin /m2
Tango Therapeutics, Inc.TNGX2PHASE2Trifluridine/Tipiracil, Oxaliplatin, FOLFOX regimen, Nivolumab, S095029
I-Mab Biopharma US LimitedIMAB2PHASE2Givastomig, Nivolumab, 5Fluorouracil, Leucovorin, Oxaliplatin
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Recent Changes (Last 90 Days)
HIGHMay 28, 2026NCT05052801Status: ACTIVE_NOT_RECRUITING → COMPLETED
HIGHMay 28, 2026NCT05052801Status: ACTIVE_NOT_RECRUITING → COMPLETED
LOWMay 26, 2026NCT05322577primaryCompletionDate: changed
LOWMay 26, 2026NCT05111626primaryCompletionDate: changed
LOWMay 26, 2026NCT05052801primaryCompletionDate: changed
LOWMay 24, 2026NCT05111626studyFirstPostDate: changed
LOWMay 24, 2026NCT05052801studyFirstPostDate: changed
LOWMay 24, 2026NCT05322577studyFirstPostDate: changed