General Information of This Antibody (ID: ANTI0APGVB)
Antibody Name
Anti-EGFR/HER3 bsAb
Antigen Name
EGFR; HER3
 Antigen Info 
Click to Show/Hide the Sequence Information of This Antibody
Each Antibody-drug Conjugate Related to This Antibody
Full Information of The Activity Data of The ADC(s) Related to This Antibody
BL-B16D1 [Phase 1]
Identified from the Human Clinical Data
Click To Hide/Show 3 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [1]
Patients Enrolled
Eligible patients (18-75 years) must have recurrent/metastatic solid tumors (HNSCC prioritized) with measurable lesions (RECIST 1.1), ECOG 0-1, adequate organ function, archived/fresh tumor tissue, and resolved prior treatment toxicities (≤Grade 1), with reproductive safeguards (contraception for 6 months post-treatment).
Administration Dosage
Administration by intravenous infusion for a cycle of 3 weeks.
Related Clinical Trial
NCT Number NCT06469008  Clinical Status PHASE1
Clinical Description
A Phase I Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Preliminary Efficacy of BL-B16D1 in Patients With Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma and Other Solid Tumors
Primary Endpoint
Phase Ia assesses DLTs (NCI-CTCAE v5.0) and MTD within 21 days post-first dose, while Phase Ib determines RP2D (within 24 months) based on integrated safety, efficacy, PK, and PD data of BL-B16D1.
Other Endpoint
Key measures include TEAE monitoring, PK parameters (Cmax/Tmax/T1/2/AUC0-t/CL/Ctrough), ADA incidence, and efficacy outcomes (ORR/DCR/DOR per RECIST 1.1) over 24 months, evaluating both safety and antitumor activity of BL-B16D1.
Experiment 2 Reporting the Activity Date of This ADC [2]
Patients Enrolled
Eligible patients (18-75) must have advanced/metastatic solid tumors (breast cancer prioritized) with measurable lesions (RECIST 1.1), ECOG 0-1, adequate organ function, available tumor tissue, resolved prior toxicities (≤Grade 1), and use contraception for 6 months post-treatment.
Administration Dosage
Administration by intravenous infusion for a cycle of 3 weeks.
Related Clinical Trial
NCT Number NCT06493864  Clinical Status PHASE1
Clinical Description
A Phase I Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetics Characteristics and Preliminary Efficacy of BL-B16D1 in Patients With Unresectable Locally Advanced or Metastatic Breast Cancer and Other Solid Tumor
Primary Endpoint
Phase Ia evaluates DLTs (NCI-CTCAE v5.0) and MTD within 21 days post-dose, while Phase Ib determines RP2D (24 months) based on integrated safety, efficacy, PK/PD data of BL-B16D1.
Other Endpoint
Key measures include TEAE monitoring, PK parameters (Cmax/Tmax/T1/2/AUC0-t/CL/Ctrough), ADA incidence, and efficacy outcomes (ORR/DCR/DOR per RECIST 1.1) over 24 months.
Experiment 3 Reporting the Activity Date of This ADC [3]
Patients Enrolled
Eligible patients (18-75) must have advanced/metastatic solid tumors with measurable lesions (RECIST 1.1), ECOG 0-1, adequate organ function, available tumor tissue, resolved prior toxicities (≤Grade 1), and use contraception for 6 months post-treatment.
Administration Dosage
Administration by intravenous infusion for a cycle of 3 weeks.
Related Clinical Trial
NCT Number NCT06475131  Clinical Status PHASE1
Clinical Description
A Phase I Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetics Characteristics and Preliminary Efficacy of BL-B16D1 in Patients With Locally Advanced or Metastatic Solid Tumors
Primary Endpoint
Phase Ia evaluates DLTs (NCI-CTCAE v5.0) and determines MTD within 21 days post-dose, while Phase Ib establishes RP2D (24 months) based on comprehensive safety, efficacy, PK/PD data of BL-B16D1.
Other Endpoint
Key assessments include TEAE monitoring, PK parameters (Cmax/Tmax/T1/2/AUC0-t/CL/Ctrough), ADA incidence, and efficacy outcomes (ORR/DCR/DOR per RECIST 1.1) over 24 months of BL-B16D1 treatment.
DB-1418 [Phase 1/2]
Discovered Using Cell Line-derived Xenograft Model
Click To Hide/Show 2 Activity Data Related to This Level
Experiment 1 Reporting the Activity Date of This ADC [4]
Efficacy Data Tumor Growth lnhibition value (TGl)
83%
Method Description
In the EGFR-dominant CAL-27 model, DB-1418 demonstrated a significant tumor growth inhibition (TGI) of 83% at a dose of 1.9 mg/kg Q3W
In Vivo Model EGFR-dominant CAL-27 model
Experiment 2 Reporting the Activity Date of This ADC [4]
Efficacy Data Tumor Growth lnhibition value (TGl)
98%
Method Description
Notably, in an osimertinib-resistant NSCLC xenograft model with the C797S mutation, DB-1418 induced tumor regression with a TGI of 98% at a dose of 6 mg/kg Q3W.
In Vivo Model Osimertinib-resistant NSCLC xenograft model with the C797S mutation
References
Ref 1 A Study of BL-B16D1 in Patients With Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma and Other Solid Tumors
Ref 2 A Study of BL-B16D1 in Patients With Unresectable Locally Advanced or Metastatic Breast Cancer and Other Solid Tumors
Ref 3 A Study of BL-B16D1 in Patients With Locally Advanced or Metastatic Solid Tumors
Ref 4 DB-1418, a bispecific antibody-drug conjugate (ADC) targeting EGFR and HER3, demonstrates superior and broad antitumor efficacy and favorable safety in preclinical models