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Compare Efficacy, Safety and Immunogenicity of HLX02 and Herceptin in Previously Untreated HER2 +Overexpressing Metastatic Breast Cancer

Phase 3
Completed
Conditions
Breast Cancer
Interventions
Biological: Herceptin®
Biological: HLX02
Registration Number
NCT03084237
Lead Sponsor
Shanghai Henlius Biotech
Brief Summary

This is a Phase III, double-blind, randomized multicenter study to compare the efficacy and to evaluate the safety and immunogenicity of HLX02 and European Union (EU)-sourced Herceptin® in patients with human epidermal growth factor receptor 2 (HER2)-positive, locally recurrent or previously untreated metastatic breast cancer.

Detailed Description

This is a Phase III, double-blind, randomized multicenter study to compare the efficacy and to evaluate the safety and immunogenicity of HLX02 and European Union (EU)-sourced Herceptin® in patients with human epidermal growth factor receptor 2 (HER2)-positive, recurrent or previously untreated metastatic breast cancer. Eligible patients will be assessed centrally for HER2 status and the presence of at least one measurable target lesion before randomization. Patients will undergo a tumor assessment for evaluation of response according to Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1) every 6 weeks up to 24 weeks (regardless of the number of cycles actually given); thereafter, assessments will be done every 9 weeks (after Cycles 11, 14, and 17) or earlier in the case of clinical signs of progression.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
652
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Herceptin®+DocetaxelHerceptin®Herceptin®+Docetaxel
Herceptin®+DocetaxeldocetaxelHerceptin®+Docetaxel
HLX02+DocetaxelHLX02HLX02+Docetaxel
HLX02+DocetaxeldocetaxelHLX02+Docetaxel
Primary Outcome Measures
NameTimeMethod
ORR 24From time of First treatment to week 24

calculated as the proportion of patients with a best response of complete response (CR) or partial response (PR) from first assessment until Week 24 according to RECIST 1.1 by central imaging review (CIR).

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions,Complete Response (CR): Disappearance of all target lesions.Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to\<10 mm, Partial Response (PR): At least a 30% decrease in the sum ofdiameters of target lesions, taking as reference thebaseline sum diameters.Overall Response (OR) = CR + PR.

Secondary Outcome Measures
NameTimeMethod
DoRUp to 2 years

The time from first documentation of CR or PR to the first documentation of progression.

Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1),At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm or Unequivocal progression of existing non-target lesions (Note: the appearance of one or more new lesions is also considered progression).

DCRUp to 2 years

The percentage of patients who achieve CR, PR, or stable disease (SD) of at least 12 weeks

CBRUp to 2 years

The proportion of patients who achieve CR, PR, or durable SD (SD ≥24 weeks)

Median PFS up to 12 MonthsFrom time of first treatment to 12 months

Median Progression Survival time assessed at 12 months.The probability of being alive without documented progression up to 12 months after randomization.

Overall Survival at 12, 24, and 36 MonthsFrom time of first treatment to 36 months

the probability of being alive 12, 24, and 36 months after randomization

Trial Locations

Locations (88)

The First Affiliated Hospital of Anhui Medical University

🇨🇳

Hefei, Anhui, China

The Second Hospital of Anhui Medical University

🇨🇳

Hefei, Anhui, China

Beijing Friendship Hospital, Capital Medical University

🇨🇳

Beijing, Beijing, China

Chongqing University Cancer Hospital

🇨🇳

Chongqing, Chongqing, China

Fujian Cancer Hospital

🇨🇳

Fuzhou, Fujian, China

Fujian Medical University Union Hospital

🇨🇳

Fuzhou, Fujian, China

The First Affiliated Hospital of Xiamen University

🇨🇳

Xiamen, Fujian, China

Affiliated Cancer Hospital and Institute of Guangzhou Medical University

🇨🇳

Guangzhou, Guangdong, China

First Affiliated Hospital of Guangzhou University of TMC

🇨🇳

Guangzhou, Guangdong, China

Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University

🇨🇳

Guangzhou, Guangdong, China

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The First Affiliated Hospital of Anhui Medical University
🇨🇳Hefei, Anhui, China

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