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HER2 Low Advanced or Metastatic Breast CancerPhase 1/2NCT05792410

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

A Phase 1/2 study testing SHR-A1811 & Dalpiciclib Isethionate Tablets, SHR-A1811 & Fulvestrant and SHR-A1811 & Bevacizumab injection in people with HER2 Low Advanced or Metastatic Breast Cancer, run by Jiangsu HengRui Medicine Co., Ltd..

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 to 75 years, women only
What is being tested?
SHR-A1811 & Dalpiciclib Isethionate Tablets, SHR-A1811 & Fulvestrant and SHR-A1811 & Bevacizumab injection
Could I receive a placebo?
No, everyone receives an active treatment
How many people
300 participants
Where
No sites listed yet
Study dates
Apr 2023to 27 Feb 2025
Phase
Phase 1/2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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
  • 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
  • ECOG Performance Status of 0 or 1
  • Patient must have adequate tumor sample for biomarker assessment
  • At least one measurable lesion
  • Adequate organ function

Who cannot join

  • There are untreated or active central nervous system (CNS) tumor metastases
  • 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)
  • Major surgery within 4 weeks prior to enrollment
  • Has multiple primary malignancies within 5 years, excluding cured basal cell carcinoma of skin, cervical carcinoma in situ, papillary thyroid carcinoma, etc
  • Has current ILD/pneumonitis, or where suspected ILD/pneumonitis cannot be ruled out at screening
  • Uncontrolled intercurrent illness
Show all 9Show fewer
  • Uncontrolled or significant cardiovascular disease
  • Has known human immunodeficiency virus (HIV) infection, or active hepatitis B or C infection.
  • According to NCI-CTCAE v5.0 classification, those who have not recovered to grade Ⅰ toxicity caused by previous anti-tumour treatment

Trial locations and contacts

No sites are listed yet.

About this study

Official title: 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.

Being tested
SHR-A1811 & Dalpiciclib Isethionate Tablets, SHR-A1811 & Fulvestrant, SHR-A1811 & Bevacizumab injection
Medical subject headings
Breast Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SHR-A1811 & Dalpiciclib Isethionate TabletsDrug

    SHR-A1811:Lyophilized powder injection, 100mg / bottle, intravenous drip Dalpiciclib Isethionate Tablets:Tablet, 25mg / tablet, 50mg / tablet, 125mg / tablet, 150mg / tablet, oral

  • SHR-A1811 & FulvestrantDrug

    SHR-A1811:Lyophilized powder injection, 100mg / bottle, intramuscular Fulvestrant:Injection, 5 ml: 0.25g/bottle, intramuscular

  • SHR-A1811 & Bevacizumab injectionDrug

    SHR-A1811:Lyophilized powder injection, 100mg / bottle, intravenous drip Bevacizumab injection: injection, 100mg / bottle, intravenous drip

Study groups in NCT05792410
Study groupRoleWhat they receive
SHR-A1811 combined with Dalpiciclib Isethionate TabletsExperimentalNot described
Receives: Drug: SHR-A1811 & Dalpiciclib Isethionate Tablets
SHR-A1811 combined with FulvestrantExperimentalNot described
Receives: Drug: SHR-A1811 & Fulvestrant
SHR-A1811 combined with Bevacizumab injectionExperimentalNot described
Receives: Drug: SHR-A1811 & Bevacizumab injection

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. DLT(Phase I (dose-finding phase) main study endpoint)

    Measured: 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.

  2. AE(Phase I (dose-finding phase) main study endpoint)

    Measured: Up to follow-up period, approximately 24 months

  3. Incidence and severity of serious adverse events (SAE)(Phase I (dose-finding phase) main study endpoint)

    Measured: Up to follow-up period, approximately 24 months

  4. Objective response rate(The main end points of the second stage (efficacy expansion stage))

    Measured: Until progression, assessed up to approximately 24 months

Secondary outcomes (6)
  1. SHR-A1811 sparse PK concentrations in serum

    Measured: While on study drug up to study completion, approximately 24 months

  2. Dalpiciclib sparse PK concentrations in plasm

    Measured: While on study drug up to study completion, approximately 24 months

  3. Incidence of anti-drug antibodies (ADA) to SHR-A1811 over time

    Measured: Up to follow-up period, approximately 24 months

  4. Incidence of neutralizing antibody (NAb) to SHR-A1811 over time

    Measured: Up to follow-up period, approximately 24 months

  5. Duration of response (DoR)

    Measured: Until progression or death, assessed up to approximately 24 months

  6. Progression-free survival (PFS)

    Measured: Until progression or death, assessed up to approximately 24 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted31 Mar 2023
  2. Study startApr 2023 (estimated)
  3. Primary completion27 Feb 2024 (estimated)
  4. Study completion27 Feb 2025 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Model description
An open, multicenter, dose-finding and dose expansion investigational Phase IB/II clinical trial
Masking
None (open label)
Enrolment
300 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05792410
Sponsor's protocol ID
SHR-A1811-206
Status last verified
Feb 2023
First submitted
17 Feb 2023
Last updated
31 Mar 2023
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing SHR-A1811 & Dalpiciclib Isethionate Tablets, SHR-A1811 & Fulvestrant and SHR-A1811 & Bevacizumab injection in people with HER2 Low Advanced or Metastatic Breast Cancer, run by Jiangsu HengRui Medicine Co., Ltd..

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 31 Mar 2023. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Shuchao Wu (+0518-81220121, shuchao.wu@hengrui.com.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

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.). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 31 Mar 2023.

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