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An Open-label, Phase I/IIa Clinical Study of the Pharmacokinetics and Safety of SMET12 in Patients with Advanced Solid Tumors with Positive Epidermal Growth Factor Receptor (EGFR) Expression

An Open-label, Phase I/IIa Clinical Study of the Pharmacokinetics and Safety of SMET12 in Patients with Advanced Solid Tumors with Positive Epidermal Growth Factor Receptor (EGFR) Expression

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500111540
Enrollment
Unknown
Registered
2025-11-02
Start date
2025-09-22
Completion date
Unknown
Last updated
2025-11-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

EGFR positive Advanced Solid tumors

Interventions

Dose escalation phase 10 µg cohort:SMET12 for injection
Dose escalation phase 30 µg cohort:SMET12 for injection
Dose escalation phase 60 µg cohort:SMET12 for injection
Dose escalation phase 100 µg cohort:SMET12 for injection
Dose escalation phase 120 µg cohort:SMET12 for injection
Dose expansion phase:SMET12 for injection

Sponsors

Fujian Cancer Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 75 Years

Inclusion criteria

Inclusion criteria: 1.Fully understand the study, voluntarily sign the informed consent form, and be willing and able to comply with the study procedures. 2.Age >=18 years. 3.Study population: Dose escalation phase: Patients with EGFR-positive advanced solid tumors who have failed standard therapy, have no available standard therapy, or are currently unsuitable for standard therapy. Dose expansion phase: Patients with EGFR-positive target indications who have failed standard therapy, have no available standard therapy, refuse standard therapy, or are currently unsuitable for standard therapy [tentatively including EGFR-positive head and neck tumors, EGFR-positive NSCLC, EGFR-positive gastrointestinal tumors (such as esophageal squamous cell carcinoma/cholangiocarcinoma), EGFR-positive endometrial carcinoma, and other tumor types]. 4.Eastern Cooperative Oncology Group (ECOG) performance status score of 0–1. 5.Expected survival of more than 12 weeks. 6.Adequate bone marrow reserve and organ function as defined by the following criteria: Bone marrow reserve: Absolute neutrophil count (NE#) >= 1.5×10^9/L, platelet count (PLT) >= 90×10^9/L, and hemoglobin (HGB) > 9.0 g/dL (no blood transfusion or hematopoietic growth factor treatment within 14 days). Coagulation function: Activated partial thromboplastin time (APTT) prolongation =60 mL/min or serum creatinine = 50%. 7.At least one measurable lesion according to RECIST v1.1 criteria, and target lesions must not have received radiotherapy or must have shown clear radiographic progression after prior radiotherapy. 8.Fertile patients (both male and female) must agree to use reliable contraception (hormonal, barrier, or abstinence methods) together with their partners during the study and for at least 3 months after the last dose; women of childbearing potential (as defined in Appendix 2) must have a negative serum or urine pregnancy test within 7 days before the first administration of the investigational drug.

Exclusion criteria

Exclusion criteria: 1.Known allergy or hypersensitivity to SMET12 for injection or any of its excipients, or a history of hypersensitivity; 2.Active or treatment-requiring bacterial, viral, or fungal infection within 2 weeks prior to the first administration of the investigational drug; 3.Prior allogeneic hematopoietic stem cell transplantation or solid organ transplantation; 4.Known central nervous system (CNS) metastases, or other CNS diseases or abnormalities deemed unsuitable for study participation by the investigator; 5.Known active infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV); however, patients meeting the following conditions may be enrolled: a) Positive for HBsAg or hepatitis B core antibody (HBcAb) with HBV DNA below the lower limit of detection (500 IU/mL or 1000 copies/mL); b) Positive for HCV antibody (HCVAb) but negative for HCV RNA; 6.Toxicities from prior antitumor therapy not resolved to Grade =3 cardiovascular/cerebrovascular events within 6 months prior to first dosing; 15.Uncontrolled pleural effusion, pericardial effusion, or refractory ascites requiring drainage >= once per month; 16.Known history of substance abuse; 17.Pregnant or lactating women; 18.Any other systemic di

Design outcomes

Primary

MeasureTime frame
OS(Overall Survival);

Secondary

MeasureTime frame
ORR(objective response rate);DCR(disease control rate);PFS(Progression Free Survival);incidence of adverse events;Laboratory aberrations;The severity of adverse events;PK(pharmacokinetics);ADA(Anti-drug antibody);

Countries

China

Contacts

Public ContactHe Zhiyong

Fujian Cancer Hospital

heyong1015@163.com+86 138 0508 6391

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026