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SSGJ-612

Phase 2

Metastatic Breast Cancer | Small molecule | Oncology |Sunshine Biopharma Inc.|Last Updated: Aug 11, 2026

Target and mechanism

ModalitySmall molecule

Also known as SSGJ-612 (HER2-targeted antibody)

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDBiomarker
Total Trials1
Total Enrollment87

FDA Designations

No designations recorded

Clinical trial landscape

SSGJ-612 · 2 trials · 2 indications

Phase 2 1Phase 1 1
NCT07757230A Phase II Study of SSGJ-612 Plus a HER2-Targeted ADC in HR-Positive, HER2-Low or HER2-Ultralow Expression Metastatic Breast CancerMetastatic Breast Cancer
NOT YET_RECRUITING87 Analytics
PHASE2NOT YET_RECRUITING
A Phase II Study of SSGJ-612 Plus a HER2-Targeted ADC in HR-Positive, HER2-Low or HER2-Ultralow Expression Metastatic Breast Cancer
Metastatic Breast CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Objective Response Rate (ORR)
2 years

The primary efficacy end point

Incidence and severity of Adverse Events (AEs)
Through study completion, an average of 1 year

Adverse 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 DLT
14 days

Dose-Limiting Toxicity

Secondary Endpoints

Incidence and Severity of Adverse Events (AEs)
2 years
Progression-Free-Survival (PFS)
2 years
ORR assessed by investigators per RECIST v1.1
Through study completion, an average of 1 year
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part 1EXPERIMENTALBreast cancer patients who have received at least one line of chemotherapy for metastatic disease
Part 2EXPERIMENTALBreast cancer patients who have not received any chemotherapy for metastatic disease
SSGJ-612EXPERIMENTALIn dose escalation phase, participants will receive one of the five increasing dose levels of SSGJ-612 respectively, intravenously (IV). During or after dose escalation, any dose levels that does not exceed the MTD can be expanded.

Interventions

NameTypeDescription
SSGJ-612 (HER2-targeted antibody)DRUGIntravenous injection
HER2-targeted ADCDRUGIntravenous injection
SSGJ-612DRUGIntravenous injection
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Eligibility Criteria

Age Range18 Years to 75 Years
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: * Voluntary participation in this study, signed informed consent form, good treatment compliance, and willingness to cooperate to complete all trial procedures. * Expected survival duration ≥ 3 months. * Histopathologically confirmed breast cancer meeting all of the following cr...

Countries:China
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Competitive Landscape -Breast Cancer 402 trials (matched to "Metastatic Breast Cancer")

Top 20 of 92 competitors

CompanyTickerTrialsLead PhaseDrugs
AstraZeneca PLCAZN47PHASE3Fulvestrant, Capivasertib
Merck & Co., Inc.MRK12PHASE3Pembrolizumab, Paclitaxel, Doxorubicin, Epirubicin, Cyclophosphamide
Eli Lilly and CompanyLLY27PHASE3Abemaciclib, Standard Adjuvant Endocrine Therapy
BioNTech SE Sponsored ADRBNTX7PHASE3DB-1303/BNT323, T-DM1
Gilead Sciences, Inc.GILD13PHASE3Sacituzumab Govitecan-hziy, Eribulin, Capecitabine Product, Gemcitabine, Vinorelbine
Novartis AG Sponsored ADRNVS30PHASE3Ribociclib
Pfizer Inc.PFE34PHASE3ARV-471, Fulvestrant
BeOne Medicines Ltd. Sponsored ADRONC5PHASE3BGB-43395, Letrozole, Abemaciclib, Palbociclib, Ribociclib
Olema Pharmaceuticals, Inc.OLMA5PHASE3Palazestrant, Fulvestrant, Anastrozole, Letrozole, Exemestane
Jazz Pharmaceuticals Public Limited CompanyJAZZ3PHASE3Zanidatamab, Trastuzumab, Eribulin, Vinorelbine, Gemcitabine
Celcuity Inc.CELC3PHASE3Gedatolisib, Palbociclib, Fulvestrant, Alpelisib
Relay Therapeutics, Inc.RLAY2PHASE3Zovegalisib, Capivasertib, Fulvestrant
GSK plc Sponsored ADRGSK2PHASE3Niraparib
Greenwich LifeSciences, Inc.GLSI1PHASE3GLSI-100
Bristol-Myers Squibb CompanyBMY5PHASE2Iza-bren, Nab-paclitaxel, Paclitaxel, Capecitabine, Carboplatin
BriaCell Therapeutics CorpBCTX2PHASE3SV-BR-1-GM, Cyclophosphamide, Interferon infiltration of the inoculation site, Retifanlimab, Treatment of Physician's Choice
Incyte CorporationINCY4PHASE2Ruxolitinib, Capecitabine, Regorafenib
Natera, Inc.NTRA3PHASE2Discontinuation of the anti-HER2 maintenance therapy
Puma Biotechnology, Inc.PBYI3PHASE2Neratinib, Loperamide, Colesevelam
Atossa Therapeutics, Inc.ATOS1PHASE2endoxifen, goserelin
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Frequently asked questions about SSGJ-612

What is SSGJ-612 used for?

SSGJ-612 is an investigational small molecule being developed for metastatic breast cancer and advanced malignant tumors. It is currently in Phase 1 clinical development for advanced solid tumors and is also being studied in a Phase 2 trial for HR-positive, HER2-low or HER2-ultralow expression metastatic breast cancer.

What does SSGJ-612 target?

SSGJ-612 targets HER2, as indicated by its classification as a HER2-targeted antibody. It is being studied in combination with a HER2-targeted antibody-drug conjugate for the treatment of HR-positive, HER2-low or HER2-ultralow expression metastatic breast cancer.

Who makes SSGJ-612?

SSGJ-612 is being developed by Sunshine Biopharma Inc., a biopharmaceutical company listed on the stock exchange under the ticker symbol SBFM. The company is conducting clinical trials for this investigational drug in China.

What phase is SSGJ-612 in?

SSGJ-612 is in Phase 1 clinical development, with an ongoing Phase 1 study in patients with advanced malignant tumors. Additionally, a Phase 2 study has been planned but has not yet started recruiting participants for metastatic breast cancer.

What clinical trials is SSGJ-612 in?

SSGJ-612 is being evaluated in two clinical trials. The first is NCT07032298, a Phase 1 study in patients with advanced solid tumors, currently recruiting in China. The second is NCT07757230, a Phase 2 study of SSGJ-612 plus a HER2-targeted ADC in HR-positive, HER2-low or HER2-ultralow expression metastatic breast cancer, which has not yet started recruiting.

Is SSGJ-612 the same as a HER2-targeted antibody?

Yes, SSGJ-612 is also known as a HER2-targeted antibody. It is being studied in combination with a HER2-targeted antibody-drug conjugate for the treatment of certain types of metastatic breast cancer.