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A Phase I Study of SSGJ-612 in Patients With Advanced Solid Tumors

Phase I Clinical Study on the Safety, Pharmacokinetics and Antitumor Activity of SSGJ-612 in Patients With Advanced Solid Tumors

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07032298
Enrollment
30
Registered
2025-06-23
Start date
2025-07-18
Completion date
2026-06-30
Last updated
2025-07-25

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

Conditions

Advanced Malignant Tumors

Brief summary

This study is an open-label phase I study to evaluate the safety, pharmacokinetics, and antitumor activity of SSGJ-612 in patients with advanced malignant solid tumors expressing HER2.

Detailed description

The clinical trial consists of two phases. In the dose escalation stage, the accelerated titration method combined with the traditional 3+3 design will be adopted, to evaluate the safety and dose-limiting toxicity (DLT), and to determine the maximum tolerated dose (MTD) or the maximum dose of administration (MAD). In the dose expansion phase, several safe and effective dose levels of SSGJ-612 will be expanded and further evaluated in larger groups of participants.

Interventions

Intravenous injection

Sponsors

Shenyang Sunshine Pharmaceutical 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. Voluntarily participate in this study, be willing to follow and complete all trial procedures, and sign the informed consent form; 2. Aged ≥18 and ≤75 years old at the time of signing the ICF, regardless of gender; 3. Expected survival ≥3 months; 4. Performance status (PS) score of 0-1 according to the Eastern Cooperative Oncology Group (ECOG) scale; 5. Patients with pathologically or cytologically confirmed locally advanced or metastatic malignant tumors who have failed standard treatment, are intolerant to standard treatment, or have no standard treatment available, and cannot undergo complete surgical resection or receive radical concurrent/sequential chemoradiotherapy; 6. Tumor tissue with HER2 expression; 7. At least one measurable tumor lesion assessed as the target lesion according to RECIST v1.1 criteria, and the lesion is suitable for repeated and accurate measurement.

Exclusion criteria

1. Presence of brainstem, meninges, or spinal cord metastasis, or spinal cord compression; 2. Presence of active central nervous system (CNS) metastatic lesions; 3. Individuals with clinical symptoms or requiring repeated drainage (once a month or more frequently) of pleural effusion, pericardial effusion, or ascites; 4. Primary or secondary immunodeficiency, including positive human immunodeficiency virus (HIV) test; 5. Known active tuberculosis; known active syphilis infection; 6. Known history of allogeneic organ transplantation or allogeneic hematopoietic stem cell transplantation; 7. Use of any live vaccine or attenuated live vaccine within 4 weeks before the first dose, or plan to receive any live vaccine or attenuated live vaccine during the study; 8. Known severe allergic history to any component of the investigational drug, or history of severe allergic reaction to antibodies; 9. Pregnant or lactating women.

Design outcomes

Primary

MeasureTime frameDescription
Incidence and severity of Adverse Events (AEs)Through study completion, an average of 1 yearAdverse Events (AEs) refers to all adverse medical events that occur in patients after they receive the investigational drug and do not necessarily have a causal relationship with the investigational drug. AEs were evaluated according to CTCAE V5.0.
Incidence of DLT14 daysDose-Limiting Toxicity

Secondary

MeasureTime frameDescription
DCR assessed by investigators per RECIST v1.1Through study completion, an average of 1 yearDisease Control Rate (DCR) is the proportion of patients with CR, PR, and Stable Disease (SD), assessed by investigators per RECIST v1.1.
TTR assessed by investigators per RECIST v1.1Through study completion, an average of 1 yearTime to Response (TTR) is the time from the start of treatment until the date of first documented response (assessed by investigators per RECIST v1.1).
PFSThrough study completion, an average of 1 yearProgression-Free Survival (PFS) is the time between first initiation of study treatment to PD (assessed by investigators per RECIST v1.1) or death due to any reason.
OSThrough study completion, an average of 1 yearOverall Survival (OS) is defined as the time from the start of treatment with SSGJ-612 until death due to any cause.
Cmax of SSGJ-612Through study completion, an average of 1 yearPeak concentration (Cmax), in single dose period and multiple dose periods.
ORR assessed by investigators per RECIST v1.1Through study completion, an average of 1 yearObjective Response Rate (ORR) is the proportion of patients with Complete Response (CR) or Partial Response (PR), assessed by investigators per RECIST v1.1.
Tmax of SSGJ-612Through study completion, an average of 1 yearPeak time (Tmax), in single dose period and multiple dose periods.
T1/2 of SSGJ-612Through study completion, an average of 1 yearElimination phase half-life (T1/2), in single dose period and multiple dose periods.
AUC0-lastThrough study completion, an average of 1 yearArea under plasma concentration-time curve from 0 to the last quantifiable time point (AUC0-t), in single dose period and multiple dose periods.
Incidence of ADA and NabThrough study completion, an average of 1 yearNumber of patients with detectable Anti-drug Antibody (ADA) and Neutralizing Antibodies (NAb).
The correlation between HER2 expression and efficacyThrough study completion, an average of 1 yearThe correlation between expression level of HER2 in tumor tissues and anti-tumor activity.
Cmin of SSGJ-612Through study completion, an average of 1 yearTrough concentration (Cmin), in multiple dose periods.
DoR assessed by investigators per RECIST v1.1Through study completion, an average of 1 yearDuration of Response (DoR) is the time between the first onset of CR or PR and the first onset of Disease Progression (PD) (assessed by investigators per RECIST v1.1) or death from any cause.

Countries

China

Contacts

Primary ContactJun Yao, M.D.
yaojun74@163.com13663790098
Backup ContactCai'e Wang, M.D.
2454544618@qq.com13837915297

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026