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LB1908

Phase 1

Gastric Cancer | Monoclonal antibody | Oncology |Legend Biotech Corporation|Last Updated: Dec 12, 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
UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment56
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05539430Claudin 18.2-Targeted Chimeric Antigen Receptor T-cells in Subjects With Unresectable, Locally Advanced, or Metastatic Gastric, Gastroesophageal Junction (GEJ), Esophageal, or Pancreatic AdenocarcinomaPHASE1 ACTIVE NOT_RECRUITING 56Apr 18, 2023Dec 1, 2027Dec 12, 20259 United States
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Study Endpoints
Primary Endpoints
To characterize the safety and tolerability of LB1908 and determine the optimal dose or recommended dose for expansion (RDE)
28 days

Multiple doses will be tested to establish a recommended dose.

To further characterize the safety and tolerability of LB1908 with the RDE identified in the dose-escalation and determine the recommended Phase 2 dose (RP2D)
90 days

Treatment of additional patients at the recommended dose as identified in the initial dose escalation part of the study.

Secondary Endpoints
To evaluate the preliminary efficacy of LB1908
Through study completion, a minimum of 2 years
To characterize the pharmacokinetics of LB1908 in blood
Through study completion, a minimum of 2 years
To evaluate the immunogenicity of LB1908
Through study completion, a minimum of 2 years
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Experimental LB1908EXPERIMENTALClaudin 18.2-Targeted Chimeric Antigen Receptor T-cells
Interventions
NameTypeDescription
LB1908BIOLOGICALClaudin 18.2-Targeted autologous Chimeric Antigen Receptor T-cells
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Eligibility Criteria
Age Range18 Years — 75 Years
SexALL
Healthy VolunteersNo
Study Sites9

Inclusion Criteria: For inclusion in the study, all of the following inclusion criteria must be fulfilled. 1. Be willing and able to provide written informed consent. 2. Be a female or male ≥ 18 and ≤ 75 years old at the time of signing of the prescreening ICF. 3. For Part A and Part B Cohort MR1 ...

Countries:United States
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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, 2026NCT05539430primaryCompletionDate: changed
LOWMay 24, 2026NCT05539430studyFirstPostDate: changed