Status:

ACTIVE_NOT_RECRUITING

Sirolimus for Injection (Albumin-bound) in Combination With Endocrine Therapy for HR+/HER2- Advanced/Metastatic Breast Cancer Patients Who Have Failed Standard Therapy

Lead Sponsor:

CSPC ZhongQi Pharmaceutical Technology Co., Ltd.

Conditions:

HR+/HER2- Advanced/Metastatic Breast Cancer

Eligibility:

All Genders

18+ years

Phase:

PHASE2

Brief Summary

This study is a multicenter, open, non-randomized phase II clinical trial consisting of a safety introduction phase followed by a single-arm phase 2 phase. This phase II trial enrolled patients with H...

Eligibility Criteria

Inclusion

  • 1\. Aged 18 or above, regardless of gender; female patients must be postmenopausal, or premenopausal/perimenopausal.
  • 2\. Pathologically confirmed HR+, HER2- breast cancer.
  • 3\. Patients who have failed prior treatment with AI or fulvestrant with or without CDK4/6 inhibitors.
  • 4\. No more than 3 lines of chemotherapy for inoperable locally advanced or metastatic disease.
  • 5\. At least one measurable lesion according to RECIST 1.1 criteria. Patients with bone lesions only may be eligible.
  • 6\. ECOG performance status score of 0-1.
  • 7\. Investigator-assessed life expectancy ≥3 months.
  • 8\. Adequate organ and bone marrow function.
  • 9\. Baseline fasting serum triglyceride \<300mg/dL or 3.42mmol/L, fasting serum cholesterol \<350mg/dL or 9.07mmol/L
  • 10\. The baseline fasting plasma glucose (FPG) ˂ 7.8 mmol/L and glycosylated hemoglobin (HbA1c) ˂ 8%
  • 11\. Premenopausal female patients using LHRH agonists to suppress ovarian function must agree to use two acceptable forms of highly effective contraception during the study and for 6 months after stopping study treatment; female patients of childbearing potential must have a negative pregnancy test before starting study treatment and must not be breastfeeding.
  • 12\. Male patients must agree to use barrier contraception (i.e., condoms) during the study and for 6 months after stopping study treatment; for men with future fertility plans, sperm freezing is recommended before starting study treatment.
  • 13\. Participants must provide informed consent before the trial and voluntarily sign the written ICF.

Exclusion

  • 1\. Previous pathological diagnosis of HER2-positive breast cancer.
  • 2\. Patients judged by the investigator to be unsuitable for endocrine therapy.
  • 3\. Patients who have previously received PI3K/AKT/mTOR inhibitors.
  • 4\. Received chemotherapy, radiotherapy, biological therapy, targeted therapy, immunotherapy, or other anti-tumor treatments within 4 weeks before randomization.
  • 5\. Received other unapproved investigational drugs within 4 weeks before randomization.
  • 6\. Underwent major surgery within 4 weeks before randomization or has not fully recovered from any previous invasive procedures.
  • 7\. Received systemic glucocorticoids (prednisone \>10 mg/day or equivalent) or other immunosuppressive treatments within 2 weeks before randomization.
  • 8\. Had an infection within 2 weeks before randomization requiring systemic (oral or IV) anti-infective treatment (uncomplicated urinary tract infections or upper respiratory tract infections excluded).
  • 9\. Received inactivated or live attenuated vaccines or COVID-19 vaccines within 4 weeks before randomization.
  • 10\. Used strong inhibitors or inducers of CYP3A4 hepatic metabolic enzymes within 2 weeks before randomization or still need to continue using such drugs.
  • 11\. Diagnosed with other malignancies within 5 years before randomization.
  • 12\. Suffering from severe cardiovascular or cerebrovascular diseases.
  • 13\. Adverse reactions from previous anti-tumor treatments have not recovered to CTCAE 5.0 grade ≤1.
  • 14\. Active leptomeningeal disease or poorly controlled central nervous system metastases.
  • 15\. Presence of pleural/abdominal effusion or pericardial effusion with clinical symptoms or requiring symptomatic treatment.
  • 16\. Known bleeding tendency (constitution) or coagulation disorders.
  • 17\. History of severe lung diseases such as interstitial lung disease and/or pneumonia, pulmonary hypertension, or radiation pneumonitis requiring glucocorticoid treatment.
  • 18\. Known hypersensitivity or intolerance to any component of the study drug or its excipients, or LHRH agonists (if applicable).
  • 19\. History of autoimmune diseases (except tuberous sclerosis), immunodeficiency diseases, including HIV-positive, or other acquired or congenital immunodeficiency diseases, or organ transplant history.
  • 20\. Active HBV, HCV, syphilis, or tuberculosis infection.
  • 21\. Other conditions judged by the investigator to be unsuitable for participation in this study.

Key Trial Info

Start Date :

February 29 2024

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

December 1 2025

Estimated Enrollment :

78 Patients enrolled

Trial Details

Trial ID

NCT06957379

Start Date

February 29 2024

End Date

December 1 2025

Last Update

May 4 2025

Active Locations (1)

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1

Cancer Hospital, Chinese Academy of Medical Sciences

Beijing, Beijing Municipality, China