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A Phase I/IIa Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetic Characteristics, Immunogenicity, and Preliminary Efficacy of SGT003 in Patients With Advanced Solid Tumors

A Multicenter, Dose-Escalation and Expansion Phase I/IIa Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetic Characteristics, Immunogenicity, and Preliminary Efficacy of SGT003 in Patients With Advanced Solid Tumors

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07811037
Enrollment
332
Registered
2026-09-09
Start date
2026-08-17
Completion date
2029-06-01
Last updated
2026-09-09

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

Conditions

Advanced Solid Tumor

Keywords

SGT003

Brief summary

A Phase I/IIa clinical study SGT003 in patients with advanced solid tumors.

Detailed description

This is a first-in-human Phase I/IIa clinical study evaluating the safety, tolerability, pharmacokinetic (PK) characteristics, immunogenicity, and preliminary efficacy of SGT003 in patients with advanced solid tumors. The study comprises a Phase I (dose-escalation) stage and a Phase IIa (dose-expansion) stage.

Interventions

DRUGSGT003

Dosage Form: Injection Strength: 50 mg (5 mL) per vial Dosage and Administration: Subjects will receive SGT003 (investigational product) via intravenous (IV) infusion on Day 1 (D1) of each cycle. Dose: During the Phase I dose-escalation, subjects will be dosed according to the assigned dose cohort; during the Phase IIa dose-expansion stage, subjects will be dosed according to the selected expansion dose. Duration of Administration: For each subject, the first infusion will be completed within 90 minutes. If no infusion-related reaction (IRR) and/or hypersensitivity reaction occurs, the subsequent infusion duration may be shortened to no less than 60 minutes.

Sponsors

Beijing Sungen Biomedical Technology Co., Ltd
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Patient can fully understand the trial, participates voluntarily, and signs informed consent form (ICF) prior to any study procedures 2. Patients aged 18 to 75 years at the time of ICF signature. 3. Study population: * Phase I (dose-escalation study): Patients with advanced solid tumors confirmed histologically or cytologically, who have failed at least one standard therapy for advanced disease, are intolerant to standard therapy, or have no available standard treatment options. * Phase IIa (dose-expansion study): Patients with advanced solid tumors who have received at least first-line but not up to third-line standard systemic therapy and experienced disease progression or intolerance to such therapy. 4. ECOG 0 or 1. 5. Radiographic evidence (CT/MRI, etc.) of disease progression documented during or after the most recent prior treatment. 6. Patients must have adequate bone marrow reserve and organ function.

Exclusion criteria

1. Subjects who have received chemotherapy, radiotherapy, biotherapy, endocrine therapy, immunosuppressive therapy or other anti-tumor therapy within 4 weeks prior to the first administration of the investigational product. 2. Subjects who have received systemic immunosuppressant therapy within 14 days prior to the first administration of the investigational product. 3. Subjects receiving anticoagulants such as therapeutic-dose heparin or vitamin K antagonists. 4. Subjects who have received any live or attenuated live vaccine within 28 days prior to the first administration of the investigational product. 5. Subjects who have undergone major surgery within 4 weeks prior to the first administration of the investigational product. 6. Subjects with a history of Grade ≥3 immune-related adverse events (irAEs), hypersensitivity reactions, or Grade ≥2 immune-related myocarditis. 7. Subjects with active autoimmune disease or prior autoimmune disease with a risk of recurrence. Exceptions: well-controlled type 1 diabetes, hypothyroidism controlled solely by hormone replacement therapy, and skin diseases that do not require systemic treatment. 8. Subjects with current or prior active interstitial lung disease (ILD). Subjects with radiation-induced pulmonary fibrosis that does not require steroid therapy are eligible.

Design outcomes

Primary

MeasureTime frameDescription
Phase I: Recommended Phase II dose (RP2D)Within the first dose cycle (Day1-Day21) of SGT003The RP2D is based on the results of safety、PK/PD and preliminary efficacy of SGT003 in the stage of dose escalation
Phase IIa: Objective Response Rate (ORR)from date of randomization, until disease progression, initiation of new anti-tumor therapy, withdrawal of informed consent, death, loss to follow-up, or study termination, whichever occurs first. average Up to 24 monthsThe ratio of CR and PR Evaluated by RECIST1.1 and iRECIST,
Adverse Events (AEs), immune-related Adverse Events (irAEs)First dose up to 28 days (+3 days) after EOT, or prior to initiation of other anti-tumor therapy, whichever occurs first.This includes clinically significant changes in vital signs, physical examination, electrocardiogram, echocardiogram and clinical laboratory tests, as graded by National Cancer Institute (NCI) Common Terminology for Adverse Events (CTCAE) version 6.0.
Phase I: Dose Limit Toxicity (DLTs)Within the first dose cycle (Day1-Day21) of SGT003Evaluated at each dose level of SGT003 graded by NCI CTCAE v6.0.
Phase I: Maximum Toxicity Dose(MTD)Within the first dose cycle (Day1-Day21) of SGT003The MTD is based on the incidence of DLTs

Secondary

MeasureTime frameDescription
ImmunogenicityStarting from the first administration of investigational product until 28 days (+3 days) after EOT.ADA detection rate, ADA incidence rate, Nab detection rate (if applicable), Nab incidence rate (if applicable)
Area under the plasma concentration-time curve (AUC)From first study treatment to EOT, average of 24 monthsarea under the plasma concentration-time curve
Peak concentration (Cmax)From first study treatment to EOT, average of 24 monthspeak concentration
Time to peak concentration(Tmax)From first study treatment to EOT, average of 24 monthstime to peak concentration

Countries

China

Contacts

CONTACTShuchang Jiang
shuchang.jiang@hotgen.com.cn+86 13552250017

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 10, 2026