General Information of This Antibody-drug Conjugate (ADC)
ADC ID
DRG0FKZGF
ADC Name
XNW27011
Synonyms
XNW27011; XNW27; ASP546C; YL203
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Organization
XNW Pharma (Sinovent) (Originator);MediLink Therapeutics (Originator);Astellas Pharma (Top20 MNC)
Drug Status
Phase 3
Drug-to-Antibody Ratio
8
Structure
Antibody Name
Anti-CLDN18.2 antibody
 Antibody Info 
Antigen Name
Claudin-18.2 (CLDN18.2)
 Antigen Info 
Payload Name
YL0010014
 Payload Info 
Payload Target
DNA topoisomerase 1 (TOP1)
 Target Info 
Linker Name
VK*G-NHCH2-O linker
 Linker Info 
Conjugate Type
Random Cysteines
Combination Type
pelitecan
2027 Update
The indication landscape of This ADC
2027 Update
The clinical trial pipelines of This ADC
Indication Phase 1 Phase 2 Phase 3 Approved
Unspecific solid tumor
1 Trials
Trial ID
NCT06792435; CTR20231735
Oesophageal cancer
1 Trials
Trial ID
NCT06792435; CTR20231735
Gastroesophageal junction adenocarcinoma
1 Trials
Trial ID
NCT06792435; CTR20231735
1 Trials
Trial ID
CTR20252730
Gastric cancer
1 Trials
Trial ID
NCT06792435; CTR20231735
1 Trials
Trial ID
CTR20252730
Colorectal cancer
1 Trials
Trial ID
NCT06792435; CTR20231735
Pancreatic cancer
1 Trials
Trial ID
NCT06792435; CTR20231735
Biliary tract cancer
1 Trials
Trial ID
NCT06792435; CTR20231735
Lung cancer
1 Trials
Trial ID
NCT06792435; CTR20231735
Ovarian cancer
1 Trials
Trial ID
NCT06792435; CTR20231735
General Information of The Activity Data Related to This ADC
Identified from the Human Clinical Data
Click To Hide/Show 2 Activity Data Related to This Level
Standard Type NCT Number Clinical Status Clinical Trial Description
Objective Response Rate (ORR)  NCT06792435
PHASE1|||PHASE2
A Phase I/II, First-in-Human Study of XNW27011 in Patients with Locally Advanced And/or Metastatic Solid Tumors
Disease control rate (DCR)  NCT06792435
PHASE1|||PHASE2
A Phase I/II, First-in-Human Study of XNW27011 in Patients with Locally Advanced And/or Metastatic Solid Tumors
Full List of Activity Data of This Antibody-drug Conjugate
Identified from the Human Clinical Data
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [1]
Efficacy Data Objective Response Rate (ORR)
50%
Patients Enrolled
Eligible patients are ≥18 years old with advanced solid tumors (gastric/GEJ adenocarcinoma, pancreatic, ovarian, etc.), measurable disease (RECIST 1.1), ECOG ≤2, and adequate organ function. Phase II requires CLDN18.2-positive tumors. Exclusions include prior anti-CLDN18.2 therapy, severe allergies to ADC components, uncontrolled comorbidities (cardiovascular, infections, third-space effusions), recent major surgery/radiotherapy, or pregnancy. Both phases mandate contraception compliance.

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Administration Dosage
As of Apr. 15, 2024, 16 pts were enrolled in 6 dose cohorts from 0.6 to 6.0 mg/kg, including 11 GC/GEJC, 2 OC, 2 PC, and 1 duodenal periampullary adenocarcinoma (ECOG 0-1, majority of pts received ≥3 lines of prior therapy).
Related Clinical Trial
NCT Number NCT06792435  Clinical Status PHASE1|||PHASE2
Clinical Description A Phase I/II, First-in-Human Study of XNW27011 in Patients with Locally Advanced And/or Metastatic Solid Tumors
Primary Endpoint
This study aims to determine the maximum tolerated dose (MTD) and recommended Phase 2 dose (RP2D) of XNW27011 in a dose escalation phase (Phase I) for patients with locally advanced/metastatic solid tumors, assessing dose-limiting toxicities (DLTs) during the first 3-week cycle. The Phase II expansion phase will evaluate objective response rate (ORR) at RP2D, measuring complete (CR) and partial responses (PR) over approximately 2 years.

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Other Endpoint
Safety assessments include adverse event monitoring (NCI CTCAE v5.0), pharmacokinetic profiling (AUC, Cmax, Ctrough), immunogenicity (anti-drug antibodies), and CLDN18.2 biomarker correlation with efficacy. Phase II will further assess disease control rate (DCR), duration of response (DOR), time to response (TTR), progression-free survival (PFS), and overall survival (OS) at RP2D over 2 years.

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Experiment 2 Reporting the Activity Date of This ADC [1]
Efficacy Data Disease control rate (DCR)
86%
Patients Enrolled
Eligible patients are ≥18 years old with advanced solid tumors (gastric/GEJ adenocarcinoma, pancreatic, ovarian, etc.), measurable disease (RECIST 1.1), ECOG ≤2, and adequate organ function. Phase II requires CLDN18.2-positive tumors. Exclusions include prior anti-CLDN18.2 therapy, severe allergies to ADC components, uncontrolled comorbidities (cardiovascular, infections, third-space effusions), recent major surgery/radiotherapy, or pregnancy. Both phases mandate contraception compliance.

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Administration Dosage
As of Apr. 15, 2024, 16 pts were enrolled in 6 dose cohorts from 0.6 to 6.0 mg/kg, including 11 GC/GEJC, 2 OC, 2 PC, and 1 duodenal periampullary adenocarcinoma (ECOG 0-1, majority of pts received ≥3 lines of prior therapy).
Related Clinical Trial
NCT Number NCT06792435  Clinical Status PHASE1|||PHASE2
Clinical Description A Phase I/II, First-in-Human Study of XNW27011 in Patients with Locally Advanced And/or Metastatic Solid Tumors
Primary Endpoint
This study aims to determine the maximum tolerated dose (MTD) and recommended Phase 2 dose (RP2D) of XNW27011 in a dose escalation phase (Phase I) for patients with locally advanced/metastatic solid tumors, assessing dose-limiting toxicities (DLTs) during the first 3-week cycle. The Phase II expansion phase will evaluate objective response rate (ORR) at RP2D, measuring complete (CR) and partial responses (PR) over approximately 2 years.

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Other Endpoint
Safety assessments include adverse event monitoring (NCI CTCAE v5.0), pharmacokinetic profiling (AUC, Cmax, Ctrough), immunogenicity (anti-drug antibodies), and CLDN18.2 biomarker correlation with efficacy. Phase II will further assess disease control rate (DCR), duration of response (DOR), time to response (TTR), progression-free survival (PFS), and overall survival (OS) at RP2D over 2 years.

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References
Ref 1 XNW27011 Study of Advanced Solid Tumor Subjects Who Failed Standard Therapies.