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Clinical Trials/NCT07022002
NCT07022002RecruitingPhase 2

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

Shenyang Sunshine Pharmaceutical Co., LTD.1 site in 1 country340 target enrollmentStarted: July 30, 2025Last updated:
Interventions
Drugs

Trial Snapshot

Phase
Phase 2
Status
Recruiting
Enrollment
340
Locations
1
Primary Endpoint
Objective response rate (ORR)

Study Overview

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).

Study Design

Study Type
Interventional
Allocation
Na
Intervention Model
Single Group
Primary Purpose
Treatment
Masking
None

Eligibility Criteria

Ages
18 Years to 75 Years (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Males and/or females over age
  • 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-
  • 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) v
  • 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.

Arms & Interventions

Part 1

Experimental

advanced gastric cancer and breast cancer that have failed standard treatment

Intervention: SSGJ-705 (Drug)

Part 2

Experimental

previously untreated advanced gastric cancer and lung cancer

Intervention: PD-1/L1 inhibitor combined with chemotherapy (Drug)

Part 2

Experimental

previously untreated advanced gastric cancer and lung cancer

Intervention: SSGJ-705 combined with chemotherapy (Drug)

Outcomes

Primary Outcomes

Objective response rate (ORR)

Time Frame: 12 months

The primary efficacy end point

Incidence of Treatment-Emergent Adverse Events

Time Frame: 12 months

The primary safety end point

Severity of Treatment-Emergent Adverse Events

Time Frame: 12 months

The primary safety end point

Secondary Outcomes

  • Progression-Free-Survival (PFS)(24 months)

Investigators

Sponsor Class
Industry
Responsible Party
Sponsor

Study Sites (1)

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