Actively Recruiting

Phase 3
Age: 18Years +
All Genders
NCT06079983

JSKN003 Versus Treatment Of Physician'S Choice For HER2-low, Unresectable and/or Metastatic Breast Cancer Subjects

Led by Jiangsu Alphamab Biopharmaceuticals Co., Ltd · Updated on 2025-09-12

400

Participants Needed

87

Research Sites

273 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

This study is a randomized controlled, open-label, multicenter phase III clinical study evaluating the efficacy and safety of chemotherapy selected by investigator JSKN003 s in subjects with recurrent or metastatic breast cancer who have previously failed first- or second-line chemotherapy in subjects with recurrent or metastatic breast cancer who have failed prior first- or second-line chemotherapy. The study planned to enroll 408 subjects in a 1:1 ratio and stratified block randomization method assigned to: * Experimental group: JSKN003 monotherapy * Control group: investigator's chosen chemotherapy drug (capecitabine, gemcitabine, vinorelbine, docetaxel, albumin-bound paclitaxel, or eribulin) monotherapy

CONDITIONS

Official Title

JSKN003 Versus Treatment Of Physician'S Choice For HER2-low, Unresectable and/or Metastatic Breast Cancer Subjects

Who Can Participate

Age: 18Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Able to understand and voluntarily sign the informed consent form
  • 18 years or older, male or female
  • Have unresectable locally recurrent or metastatic breast cancer with HER2 IHC 1+ or 2+ and ISH negative
  • Received 1 to 2 prior chemotherapy regimens for breast cancer in relapse/metastatic stage
  • Willing to provide archived tumor pathology samples for HER2 testing
  • Documented disease progression by imaging during or after most recent treatment
  • Have at least one measurable extracranial lesion according to RECIST 1.1
  • Expected survival of 3 months or more
  • ECOG performance status of 0 or 1 within 14 days before treatment
  • Female subjects of childbearing potential and male subjects with fertile partners agree to use effective contraception
  • Laboratory tests within 14 days before treatment and cardiac function tests within 28 days meet criteria
  • Adequate recovery from prior treatments before starting study treatment
Not Eligible

You will not qualify if you...

  • Untreated or unstable brain metastases, spinal cord metastases or compression, or cancerous meningitis
  • Only skin lesions as target lesions
  • History of other primary cancers within 5 years before treatment
  • Investigator's chosen control drug not suitable per protocol
  • Previous use of antibody-drug conjugates containing topoisomerase I inhibitors
  • Uncontrolled third-space fluid accumulation
  • Previous or current interstitial pneumonia or lung disease requiring systemic steroids
  • Conditions impairing oral drug administration or absorption, such as inability to swallow, chronic diarrhea, or intestinal obstruction
  • Previous or current autoimmune disease
  • Uncontrolled comorbid conditions
  • Toxicity from previous cancer treatments not recovered to grade 1 or less
  • History of immunodeficiency
  • History of severe allergic reactions or grade 3 or higher allergy to study drug components
  • Other conditions affecting safety or ability to follow treatment, including psychiatric disorders or substance abuse

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 87 locations

1

Erwei Song

Guangzhou, Guangdong, China

Not Yet Recruiting

2

Jiong Wu

Shanghai, Shanghai Municipality, China

Not Yet Recruiting

3

Anyang Cancer Hospital

Anyang, China

Not Yet Recruiting

4

Affiliated Hospital of Hebei University

Baoding, China

Not Yet Recruiting

5

Beijing Luhe Hospital

Beijing, China

Not Yet Recruiting

6

Cancer Hospital, Chinese Academy of Medical Sciences

Beijing, China

Actively Recruiting

7

Peking University Cancer Hospital

Beijing, China

Actively Recruiting

8

The First Affiliated Hospital of China Medical University

Beijing, China

Actively Recruiting

9

The First Medical Center of the General Hospital of the People's Liberation Army Chinese People's Liberation Army

Beijing, China

Not Yet Recruiting

10

Bethune First Hospital of Jilin University

Changchun, China

Not Yet Recruiting

11

Jilin Provincial Cancer Hospital

Changchun, China

Not Yet Recruiting

12

The First People's Hospital of Changde

Changde, China

Actively Recruiting

13

Central South University Xiangya Hospital

Changsha, China

Not Yet Recruiting

14

Hunan Cancer Hospital

Changsha, China

Actively Recruiting

15

Affiliated Hospital of Chengde Medical University

Chengde, China

Actively Recruiting

16

Sichuan Cancer Hospital

Chengdu, China

Actively Recruiting

17

Sichuan Provincial People's Hospital

Chengdu, China

Actively Recruiting

18

West China Hospital, Sichuan University

Chengdu, China

Not Yet Recruiting

19

Cancer Hospital of Chongqing University

Chongqing, China

Not Yet Recruiting

20

The First Affiliated Hospital of Chongqing Medical University

Chongqing, China

Not Yet Recruiting

21

The Second Affiliated Hospital of Dalian Medical University

Dalian, China

Not Yet Recruiting

22

Fujian Cancer Hospital

Fuzhou, China

Not Yet Recruiting

23

Fujian Provincial Hospital

Fuzhou, China

Actively Recruiting

24

Union Hospital Affiliated to Fujian Medical University

Fuzhou, China

Actively Recruiting

25

The First Affiliated Hospital of Gannan Medical University

Ganzhou, China

Actively Recruiting

26

Guangdong Provincial People's Hospital

Guangzhou, China

Not Yet Recruiting

27

Sun Yat-sen Memorial Hospital, Sun Yat-sen University

Guangzhou, China

Not Yet Recruiting

28

The Affiliated Hospital of Guangdong Medical University

Guangzhou, China

Actively Recruiting

29

Sun Yat-sen University Cancer Center

Guanzhou, China

Not Yet Recruiting

30

Guizhou Provincial People's Hospital

Guiyang, China

Actively Recruiting

31

The Affiliated Hospital of Guizhou Medical University

Guiyang, China

Actively Recruiting

32

Run Run Shaw Hospital affiliated to Zhejiang University School of Medicine

Hangzhou, China

Not Yet Recruiting

33

The First Affiliated Hospital of Zhejiang University School of Medicine

Hanzhou, China

Not Yet Recruiting

34

The Second Affiliated Hospital of Zhejiang University School of Medicine

Hanzhou, China

Not Yet Recruiting

35

Zhejiang Cancer Hospital

Hanzhou, China

Not Yet Recruiting

36

Harbin Medical University Cancer Hospital

Ha’erbin, China

Not Yet Recruiting

37

Anhui Provincial Hospital

Hefei, China

Not Yet Recruiting

38

The First Affiliated Hospital of Anhui Medical University

Hefei, China

Not Yet Recruiting

39

The Second Affiliated Hospital of Anhui Medical University

Hefei, China

Not Yet Recruiting

40

The First Affiliated Hospital of University of South China

Hengyang, China

Actively Recruiting

41

Affiliated Hospital of Inner Mongolia Medical University

Hohhot, China

Actively Recruiting

42

Jiangmen Central Hospital

Jiangmen, China

Actively Recruiting

43

Shandong Cancer Hospital

Jinan, China

Actively Recruiting

44

Affiliated Hospital of Jining Medical University

Jining, China

Actively Recruiting

45

Yunnan Cancer Hospital

Kunming, China

Not Yet Recruiting

46

Gansu Provincial Cancer Hospital

Lanzhou, China

Not Yet Recruiting

47

The First Hospital of Lanzhou University

Lanzhou, China

Actively Recruiting

48

Linyi Cancer Hospital

Linyi, China

Not Yet Recruiting

49

Linyi People's Hospital

Linyi, China

Not Yet Recruiting

50

The First Affiliated Hospital of Henan University of Science and Technology

Luoyang, China

Actively Recruiting

51

Meizhou People's Hospital

Meizhou, China

Actively Recruiting

52

Jiangxi Provincial Cancer Hospital

Nanchang, China

Actively Recruiting

53

The Third Hospital of Nanchang

Nanchang, China

Actively Recruiting

54

Jiangsu Provincial Cancer Hospital

Nanjing, China

Actively Recruiting

55

Jiangsu Provincial People's Hospital

Nanjing, China

Not Yet Recruiting

56

Cancer Hospital Affiliated to Guangxi Medical University

Nanning, China

Not Yet Recruiting

57

Guangxi Zhuang Autonomous Region People's Hospital

Nanning, China

Not Yet Recruiting

58

The Second People's Hospital of Neijiang

Neijiang, China

Actively Recruiting

59

Affiliated Hospital of Qingdao University

Qingdao, China

Not Yet Recruiting

60

Fudan University Cancer Hospital

Shanghai, China

Not Yet Recruiting

61

Cancer Hospital Affiliated to Shantou University School of Medicine

Shantou, China

Not Yet Recruiting

62

The People's Hospital of Northern Guangdong

Shaoguan, China

Actively Recruiting

63

Liaoning Cancer Hospital

Shengyang, China

Actively Recruiting

64

Suining Central Hospital

Suining, China

Actively Recruiting

65

The Second Affiliated Hospital of Soochow University

Suzhou, China

Not Yet Recruiting

66

Shanxi Bethune Hospital

Taiyuan, China

Not Yet Recruiting

67

Shanxi Provincial Cancer Hospital

Taiyuan, China

Not Yet Recruiting

68

Zhejiang Taizhou Hospital

Taizhou, China

Actively Recruiting

69

Tianjin Cancer Hospital

Tianjin, China

Actively Recruiting

70

Affiliated Tumor Hospital of Xinjiang Medical University

Ürümqi, China

Actively Recruiting

71

Hubei Provincial Cancer Hospital

Wuhan, China

Actively Recruiting

72

People's Hospital of Wuhan University

Wuhan, China

Not Yet Recruiting

73

Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

Wuhan, China

Not Yet Recruiting

74

Zhongnan Hospital of Wuhan University

Wuhan, China

Not Yet Recruiting

75

The First Affiliated Hospital of Xi'an Jiaotong University

Xi'an, China

Not Yet Recruiting

76

The Second Affiliated Hospital of Xi'an Jiaotong University

Xi'an, China

Actively Recruiting

77

The First Affiliated Hospital of Xiamen University

Xiamen, China

Actively Recruiting

78

Xiangyang Central Hospital

Xiangyang, China

Not Yet Recruiting

79

Affiliated Hospital of Qinghai University

Xining, China

Actively Recruiting

80

The First Affiliated Hospital of Xinxiang Medical University

Xinxiang, China

Actively Recruiting

81

Affiliated Hospital of Xuzhou Medical University

Xuzhou, China

Not Yet Recruiting

82

Xuzhou Central Hospital

Xuzhou, China

Actively Recruiting

83

Yongzhou Central Hospital in Hunan Province

Yongzhou, China

Actively Recruiting

84

The First People's Hospital of Zhaoqing

Zhaoqing, China

Actively Recruiting

85

Henan Provincial Cancer Hospital

Zhengzhou, China

Actively Recruiting

86

The First Affiliated Hospital of Zhengzhou University

Zhengzhou, China

Not Yet Recruiting

87

The Affiliated Hospital of Zunyi Medical University

Zunyi, China

Actively Recruiting

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Research Team

E

Erwei Song

CONTACT

J

Jiong Wu

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

2

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JSKN003 Versus Treatment Of Physician'S Choice For HER2-low, Unresectable and/or Metastatic Breast Cancer Subjects | DecenTrialz