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SSGJ-705 Monotherapy and Combination Therapy in Advanced HER2-Expressing Solid Tumors

A Phase II Study to Evaluate the Safety and Efficacy of SSGJ-705 Monotherapy and Combination Therapy in Patients With Advanced HER2-Expressing Solid Tumors

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07022002
Enrollment
340
Registered
2025-06-15
Start date
2025-07-30
Completion date
2027-12-12
Last updated
2025-08-03

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

Conditions

Locally Advanced, Recurrent or Metastatic Malignancies

Keywords

advanced malignancies

Brief summary

This study was an open-label phase Ⅱ study to evaluate the safety and efficacy of SSGJ-705 Monotherapy and Combination Therapy in patients with advanced HER2-Expressing Solid Tumors.

Detailed description

This study includes 2 Parts: Part 1 (705 monotherapy for advanced gastric cancer and breast cancer that have failed standard treatment), and Part 2 (705 in combination with chemotherapy for previously untreated advanced gastric cancer and lung cancer).

Interventions

anti-PD-1 (programmed cell death protein 1) and anti-HER2 (Human Epidermal GrowthFactor Receptor 2)bispecifc antibody

Immune checkpoint inhibitors

anti-PD-1 and anti-HER2 bispecifc antibody

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

* Males and/or females over age 18. * Histologically and/or cytologically documented local advanced or metastatic non-Small Cell Lung Cancer(NSCLC),Breast Cancer(BC)or Gastric/Gastroesophageal Junction Cancer (G/GEJC). * Eastern Cooperative Oncology Group (ECOG) performance status of 0-1. * Expected survival \>3 months. * Signed informed consent form.

Exclusion criteria

* Any remaining adverse events (AEs) \> grade 1 from prior anti-tumor treatment as per Common Terminology Criteria for Adverse Events(CTCAE) v5. 0, with exception of hair loss, fatigue, and grade 2 peripheral neurotoxicity. * Pregnant or nursing women or women/men who are ready to give birth. * symptomatic central nervous system metastasis. * Allergy to other antibody drugs or any excipients in the study drugs. * Inadequate organ or bone marrow function.

Design outcomes

Primary

MeasureTime frameDescription
Objective response rate (ORR)12 monthsThe primary efficacy end point
Incidence of Treatment-Emergent Adverse Events12 monthsThe primary safety end point
Severity of Treatment-Emergent Adverse Events12 monthsThe primary safety end point

Secondary

MeasureTime frameDescription
Progression-Free-Survival (PFS)24 monthsThe secondary efficacy end point

Countries

China

Contacts

Primary ContactJieer Ying, M.D
hzyingjieer@163.com86-13858195803
Backup ContactMeifang Zheng, M.D.
794998553@qq.com86-15258894828

Outcome results

None listed

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