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Breast CancerPhase 2NCT06411457

SHR-A1811 in Combination With Adebrelimab for the Treatment of HER2 Low-expressing Metastatic Breast Cancer

A Phase 2 study testing SHR-A1811+Adebrelimab in people with Breast Cancer, run by Cancer Institute and Hospital, Chinese Academy of Medical Sciences at 1 site in China.

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 The sponsor has not verified this record for over two years, so it may be out of date.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

To evaluate the efficacy and safety of the SHR-A1811 in combination with Adebrelimab regimen in HER2 low-expressing metastatic breast cancer Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Breast Cancer
What is being tested?
SHR-A1811+Adebrelimab
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteChina
Study dates
16 May 2024to 1 May 2026
Phase
Phase 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 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age ≥ 18 years; ER/PgR expression ≤10% and low HER2 expression (IHC 1+, or IHC 2+ and ISH-); Advanced breast cancer patients; Prior treatment with ≥1 line of therapy for localized recurrence or metastatic disease; At least one prior treatment with taxane or anthracycline therapy; Allowed to receive immunotherapy during neoadjuvant or adjuvant stages; Measurable lesions according to RECIST 1.1 standards; ECOG PS score: 0-1; Voluntary participation with good compliance; Negative pregnancy test result, childbearing-age participants commit to effective contraception from the study start to 6 months after the last dose; Adequate organ function; Blood routine: ANC ≥1.5×109/L, PLT≥70×109/L, HGB ≥90g/L; Liver function: TBIL ≤1.5×ULN, ALT and AST ≤3×ULN, serum albumin ≥28 g/L, ALP ≤5×ULN; Stable liver function for at least 1 week after routine liver protection treatment, as assessed by the investigator, is eligible for inclusion; Renal function: Cr ≤1.5×ULN, or CrCl ≥50 mL/min (using standard Cockcroft-Gault formula); Coagulation function: INR ≤1.5/PT ≤1.5×ULN, aPTT ≤1.5×ULN; Left ventricular ejection fraction ≥50%

Who cannot join

  • Active central nervous system metastases or carcinomatous meningitis (stable brain metastasis patients are allowed to participate); Prior treatment with anti-HER2 ADC drugs; Active autoimmune disease or history of autoimmune disease (including but not limited to: autoimmune hepatitis, interstitial pneumonia, uveitis, enteritis, hepatitis, hypophysitis, vasculitis, nephritis, hyperthyroidism; Patients with vitiligo; Childhood asthma completely resolved in adulthood without any intervention can be included, but asthma requiring bronchodilators for medical intervention in adulthood cannot be included); Patients using immunosuppressants or systemic steroid therapy for immunosuppressive purposes (dose>10mg/day prednisone or equivalent) in the 2 weeks before inclusion; Patients with other malignant tumors in the past or simultaneously; Grade ≥4 adverse reactions after ADC drug treatment, grade ≥3 immune-related adverse reactions; Known allergy to drug components used; Patients with known interstitial pneumonia; Poorly controlled clinical heart symptoms or diseases, such as: (1) NYHA class 2 or above heart failure; (2) unstable angina; (3) myocardial infarction within the past year; (4) patients with clinically significant ventricular or supraventricular arrhythmias requiring treatment or intervention; Active infection or unexplained fever >38.5°C during the screening period or before the first dose of study medication, depending on the investigator's judgment, patients with fever due to tumor can be included; Not receiving live vaccines within less than 4 weeks before or during the study; Patients known to have a history of psychiatric drug abuse, alcoholism, or drug addiction; Factors that may lead to the premature termination of the study judged by the investigator, such as other serious diseases (including mental illness) requiring concomitant treatment, severe laboratory abnormalities, family or social factors affecting patient safety, data and sample collection

Trial locations and contacts

1 site in 1 country.

Qiao Li, M.D. contact

18500027849

liqiaopumc@qq.com

China1 site, 1 recruiting
  • National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital

    Beijing, Beijing Municipality, 00

    Qiao Li, Dr., +8615910573527, liqiaopumc@qq.com

    Yue Chai, Dr., 13350804092, cy972628990@163.com

    Recruiting

Other trials in China

About this study

Official title: Single-arm, Multi-center Phase II Clinical Study of SHR-A1811 in Combination With Adebrelimab for the Treatment of HER2 Low-expressing Metastatic Breast Cancer

To evaluate the efficacy and safety of the SHR-A1811 in combination with Adebrelimab regimen in HER2 low-expressing metastatic breast cancer

Conditions
Breast Cancer
Being tested
SHR-A1811+Adebrelimab
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+AdebrelimabDrug

    Assess the efficacy and safety of the SHR-A1811 in combination with Adebrelimab regimen in HER2 low-expressing metastatic breast cancer SHR-A1811 : 6.4mg/kg , q3w,d1, ivgtt Adebrelimab : 1200mg, q3w,d1, ivgtt

Study groups in NCT06411457
Study groupRoleWhat they receive
SHR-A1811+AdebrelimabExperimentalAssess the efficacy and safety of the SHR-A1811 in combination with Adebrelimab regimen in HER2 low-expressing metastatic breast cancer
Receives: Drug: SHR-A1811+Adebrelimab

What is being measured

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

  1. ORR

    Overall response rate

    Measured: ORR date will be assessed evey 6 weeks starting from the randomization date until first documented progression or date of death from any cause whichever came first assessed up to 3 years

Secondary outcomes (4)
  1. 3-month PFS

    progression-free survival rate at 3 month

    Measured: 3-month progression-free survival rate will be assessed evey 6 weeks starting from the randomization date until first documented progression or date of death from any cause which ever came first assessed up to 3 month.

  2. PFS

    Progression-free survival

    Measured: progression date will be assessed evey 6 weeks starting from the randomization date until first documented progression or date of death from any cause whichever came first assessed up to 3 years

  3. Clinical benefit rate (CBR)

    Measured: CBR will be assessed evey 6 weeks starting from the randomization date until first documented progression or date of death from any cause whichever came first assessed up to 3 years

  4. Safety endpoints

    including incidence of adverse events (AE), serious adverse events (SAE), and immune-related adverse events (irAE)

    Measured: Safety date will be assessed evey 6 weeks starting from the randomization date until first documented progression or date of death from any cause whichever came first assessed up to 3 years

Timeline

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

  1. First posted13 May 2024
  2. Study start16 May 2024 (estimated)
  3. Primary completion1 May 2025 (estimated)
  4. Study completion1 May 2026 (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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
20 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06411457
Sponsor's protocol ID
NCC4483
Status last verified
May 2024
First submitted
4 May 2024
Last updated
17 May 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing SHR-A1811+Adebrelimab in people with Breast Cancer, run by Cancer Institute and Hospital, Chinese Academy of Medical Sciences at 1 site in China.

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 1 inclusion and 1 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 17 May 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

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 phase mean?

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 Qiao Li, M.D. (18500027849, liqiaopumc@qq.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

ORR (time frame: ORR date will be assessed evey 6 weeks starting from the randomization date until first documented progression or date of death from any cause whichever came first assessed up to 3 years). 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 17 May 2024.

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