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Evorpacept

Phase 2

Gastric Cancer | Small molecule | Oncology |ALX Oncology Holdings Inc.|Last Updated: Aug 7, 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
RandomizedDouble-BlindACTIVE_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment127
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05002127A Study of Evorpacept (ALX148) in Patients With Advanced HER2+ Gastric Cancer (ASPEN-06)PHASE2 ACTIVE NOT_RECRUITING 127Jan 15, 2022Jun 1, 2026Aug 7, 202583 United States, Australia +10
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Study Endpoints
Primary Endpoints
Phase 2
Last randomized patient on study at least 16 weeks

Percentage of patients with objective response per RECIST 1.1

Phase 3
From the date of randomization to the date of death (due to any cause), up to 36 months postdose

Overall Survival

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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Phase 2 - Arm AEXPERIMENTALEvorpacept (ALX148) 30 mg/kg every two weeks (Q2W) intravenous (IV), trastuzumab (initial dose of 6 mg/kg followed by 4 mg/kg) Q2W IV, ramucirumab 8 mg/kg Q2W IV, and paclitaxel 80 mg/m2 IV Days 1, 8, and 15 of a 28-day cycle.
Phase 2 - Arm BACTIVE_COMPARATORTrastuzumab (initial dose of 6 mg/kg followed by 4 mg/kg) Q2W IV, ramucirumab 8 mg/kg Q2W IV, and paclitaxel 80 mg/m2 IV Days 1, 8, and 15 of a 28-day cycle.
Phase 3 - Arm AEXPERIMENTALEvorpacept (ALX148) 30 mg/kg Q2W IV, trastuzumab (initial dose of 6 mg/kg followed by 4 mg/kg) Q2W IV, ramucirumab 8 mg/kg Q2W IV, and paclitaxel 80 mg/m2 IV Days 1, 8, and 15 of a 28-day cycle.
Phase 3 - Arm BACTIVE_COMPARATORRamucirumab 8 mg/kg Q2W IV and paclitaxel 80 mg/m2 IV Days 1, 8, and 15 of a 28-day cycle.
Interventions
NameTypeDescription
Evorpacept (ALX148)DRUGIV Q2W
TrastuzumabDRUGIV Q2W
RamucirumabDRUGIV Q2W
PaclitaxelDRUGIV Days 1, 8, and 15 of a 28-day cycle
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites83

Inclusion Criteria: * HER2-overexpressing advanced or metastatic gastric or gastroesophageal junction (GEJ) adenocarcinoma that has progressed on or after a prior HER2-directed agent and fluoropyrimidine- or platinum-containing chemotherapy (2nd-line or 3rd-line) * Adequate Bone Marrow Function. * ...

Countries:United StatesAustraliaBelgiumCzechiaFranceItalyJapanSingaporeSouth KoreaSpainTaiwanUnited Kingdom
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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)
LOWMay 26, 2026NCT05002127primaryCompletionDate: changed
LOWMay 24, 2026NCT05002127studyFirstPostDate: changed