A Phase Ⅰb/Ⅱ Clinical Study of SHR-A1811 Combined With Other Therapies in Patients With HER2 Low Advanced or Metastatic Breast Cancer.

March 19, 2023 updated by: Jiangsu HengRui Medicine Co., Ltd.

An Open, Multicenter Phase Ⅰb/Ⅱ Clinical Study of SHR-A1811 Combined With Dalpiciclib, Fulvestrant, Bevacizumab or Letrozole/Anastrozole in Patients With HER2 Low Advanced or Metastatic Breast Cancer.

This study aims to evaluate the safety, tolerability, PK and preliminary anti-tumour activity of SHR-A1811 combined with other therapies in patients with HER2 low advanced or metastatic breast cancer.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
300

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  1. Ability to give informed consent, signed and dated IRB/EC approved informed consent, willing and able to comply with treatment planning visits, tests and other procedural requirements
  2. When signing the informed consent, the age is 18-75 years old (including both ends), female patients who have pathologically documented HER2 low breast cancer
  3. ECOG Performance Status of 0 or 1
  4. Patient must have adequate tumor sample for biomarker assessment
  5. At least one measurable lesion
  6. Adequate organ function

Exclusion Criteria:

  1. There are untreated or active central nervous system (CNS) tumor metastases
  2. There was a third space effusion that could not be controlled by drainage (such as a large number of ascites, pleural effusion and pericardial effusion)
  3. Major surgery within 4 weeks prior to enrollment
  4. Has multiple primary malignancies within 5 years, excluding cured basal cell carcinoma of skin, cervical carcinoma in situ, papillary thyroid carcinoma, etc
  5. Has current ILD/pneumonitis, or where suspected ILD/pneumonitis cannot be ruled out at screening
  6. Uncontrolled intercurrent illness
  7. Uncontrolled or significant cardiovascular disease
  8. Has known human immunodeficiency virus (HIV) infection, or active hepatitis B or C infection.
  9. According to NCI-CTCAE v5.0 classification, those who have not recovered to grade Ⅰ toxicity caused by previous anti-tumour treatment

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: SHR-A1811 combined with Dalpiciclib Isethionate Tablets
Drug: SHR-A1811 & Dalpiciclib Isethionate Tablets
SHR-A1811：Lyophilized powder injection, 100mg / bottle, intravenous drip Dalpiciclib Isethionate Tablets：Tablet, 25mg / tablet, 50mg / tablet, 125mg / tablet, 150mg / tablet, oral
Experimental: SHR-A1811 combined with Fulvestrant
Drug: SHR-A1811 & Fulvestrant
SHR-A1811：Lyophilized powder injection, 100mg / bottle, intramuscular Fulvestrant：Injection, 5 ml: 0.25g/bottle, intramuscular
Experimental: SHR-A1811 combined with Bevacizumab injection
Drug: SHR-A1811 & Bevacizumab injection
SHR-A1811：Lyophilized powder injection, 100mg / bottle, intravenous drip Bevacizumab injection: injection, 100mg / bottle, intravenous drip

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
DLT(Phase I (dose-finding phase) main study endpoint)
Time Frame: At the end of cycle 1(each cycle is 28 days for SHR-A1811+ fulvestrant; each cycle is 21 days for SHR-A1811+other therapies.
At the end of cycle 1(each cycle is 28 days for SHR-A1811+ fulvestrant; each cycle is 21 days for SHR-A1811+other therapies.
AE(Phase I (dose-finding phase) main study endpoint)
Time Frame: Up to follow-up period, approximately 24 months
Up to follow-up period, approximately 24 months
Incidence and severity of serious adverse events (SAE)(Phase I (dose-finding phase) main study endpoint)
Time Frame: Up to follow-up period, approximately 24 months
Up to follow-up period, approximately 24 months
Objective response rate(The main end points of the second stage (efficacy expansion stage))
Time Frame: Until progression, assessed up to approximately 24 months
Until progression, assessed up to approximately 24 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
SHR-A1811 sparse PK concentrations in serum
Time Frame: While on study drug up to study completion, approximately 24 months
While on study drug up to study completion, approximately 24 months
Dalpiciclib sparse PK concentrations in plasm
Time Frame: While on study drug up to study completion, approximately 24 months
While on study drug up to study completion, approximately 24 months
Incidence of anti-drug antibodies (ADA) to SHR-A1811 over time
Time Frame: Up to follow-up period, approximately 24 months
Up to follow-up period, approximately 24 months
Incidence of neutralizing antibody (NAb) to SHR-A1811 over time
Time Frame: Up to follow-up period, approximately 24 months
Up to follow-up period, approximately 24 months
Duration of response (DoR)
Time Frame: Until progression or death, assessed up to approximately 24 months
Until progression or death, assessed up to approximately 24 months
Progression-free survival (PFS)
Time Frame: Until progression or death, assessed up to approximately 24 months
Until progression or death, assessed up to approximately 24 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Jiangsu HengRui Medicine Co., Ltd.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 1, 2023

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 27, 2024

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 27, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 17, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 19, 2023

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 31, 2023

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 31, 2023

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 19, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2023

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • SHR-A1811-206

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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