Antibody-drug Conjugate Information
General Information of This Antibody-drug Conjugate (ADC)
| ADC ID |
DRG0KTTFS
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| ADC Name |
XMT-2056
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| Synonyms |
XMT-2056
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| Organization |
Mersana Therapeutics (Originator)
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| Drug Status |
Phase 1
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| Drug-to-Antibody Ratio |
8
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| Structure |
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| Antibody Name |
HT-19
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Antibody Info | ||||
| Antigen Name |
Receptor tyrosine-protein kinase erbB-2 (HER2 ECD2); Receptor tyrosine-protein kinase erbB-2 (HER2 ECD4)
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Antigen Info | ||||
| Payload Name |
STING agonist
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Payload Info | ||||
| Therapeutic Target |
Stimulator of interferon genes protein (STING1)
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Target Info | ||||
| Linker Name |
Hydrophilic linker of XMT-2056
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Linker Info | ||||
| Conjugate Type |
Random Cysteines
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The indication landscape of This ADC(2027 Update)
The clinical trial pipeline of This ADC(2027 Update)
| Indication | Phase 1 | Phase 1/2 | Phase 2 | Phase 2/3 | Phase 3 | New Drug Application | Approved | ||
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| Breast cancer |
1 Trials
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| Colorectal cancer |
1 Trials
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| Gastric cancer |
1 Trials
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| Lung cancer |
1 Trials
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| Unspecific solid tumor |
1 Trials
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General Information of The Activity Data Related to This ADC
Full List of Activity Data of This Antibody-drug Conjugate
Identified from the Human Clinical Data
| Experiment 1 Reporting the Activity Date of This ADC | [1] | ||||
| Patients Enrolled |
Eligible participants have HER2-positive recurrent/metastatic solid tumors with progressive disease, ECOG 0-1, and measurable lesions (RECIST 1.1). Key exclusions: recent immunosuppressive therapy (>10mg/day prednisone), prior STING-targeting treatment, active malignancy within 2 years (except low-risk cases), or untreated CNS metastases (stable/treated cases allowed with criteria).
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| Administration Dosage |
XMT-2056 will be administered through a vein in your arm or port catheter (intravenously)
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| Related Clinical Trial | |||||
| NCT Number | NCT05514717 | Clinical Status | PHASE1 | ||
| Clinical Description | A Phase 1, First-in-Human, Dose Escalation and Expansion, Multicenter Study of XMT-2056 in Participants With Advanced/Recurrent Solid Tumors That Express HER2 | ||||
| Primary Endpoint |
Safety and primary objectives focus on evaluating dose-limiting toxicities (DLTs), determining the maximum tolerated dose (MTD), and assessing adverse events over 15 months (Dose Escalation) and up to 3 years (Dose Expansion). The Objective Response Rate (ORR) is measured per RECIST 1.1 for confirmed responses.
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| Other Endpoint |
Secondary outcomes include ORR, duration of response (DOR), disease control rate (DCR), and comprehensive pharmacokinetic assessments (Tmax, Cmax, AUC, clearance, half-life, volume of distribution, Ctrough) over 3 years. Immunogenicity is evaluated by measuring antidrug/neutralizing antibodies (ADA/NAb).
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