Phase 2 Breast Cancer Trial, Recruiting
Who may be able to join
AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
Who might be able to join this trial:
- Women between 18 and 75 years of age (inclusive)
- People with a good general level of physical functioning (low impact from illness on daily activities) (confirm with trial site)
- People whose breast cancer has spread to other parts of the body or has grown into nearby tissue, confirmed by a tissue sample (biopsy)
- Depending on the stage of the trial: people who have previously had at least one hormone-based treatment that stopped working, or people who have not yet received any treatment for advanced disease (confirm with trial site)
- People whose cancer has been confirmed to be growing on scans, or who are currently on a first-line hormone-based treatment for advanced disease with no confirmed progression
- People who have at least one measurable area of cancer outside the brain visible on scans
- People with an expected survival of more than 3 months
- People whose organ function meets the levels required by the trial (confirm with trial site)
- Women who could become pregnant must agree to use highly effective contraception during treatment and for 7 months after treatment ends, must have a negative pregnancy blood test within 7 days before joining, and must not be breastfeeding
- People who are willing to take part, follow all visit schedules and study procedures, and have signed a consent form
Who may not be able to join:
- People who have symptoms caused by cancer that has spread to internal organs
- People whose previous treatment history does not meet the trial's requirements (confirm with trial site)
- People who received certain chemotherapy drugs (nitrosourea or mitomycin) within 6 weeks before the first dose, or who received major surgery, other chemotherapy, immunotherapy, targeted therapy, anti-cancer traditional Chinese medicine, or other trial drugs within 4 weeks before the first dose, or who received hormone therapy or palliative radiotherapy within 2 weeks before the first dose
- People who have recently taken certain medications that interact with a liver enzyme called CYP3A4 within 14 to 28 days before starting the trial (confirm with trial site)
- People with active or symptomatic brain metastases, cancer affecting the membranes around the brain, spinal cord compression, or a history of a primary brain tumour
- People with a history of serious heart or blood vessel disease
- People with cancer-related pain that cannot be controlled
- People who received immune-suppressing medications or high-dose steroid therapy within 2 weeks before the first dose
- People who have not yet recovered from side effects of previous treatments (confirm with trial site)
- People who had a serious infection within 4 weeks before starting the trial
- People who had a blood clot in an artery or vein within 6 months before starting the trial
- People with clinically significant abnormalities of the uterine lining
- People with untreated active hepatitis
- People who have had another cancer within the past 5 years or currently have another cancer
- People with a known tendency to bleed, whether inherited or developed
- People with a history of active autoimmune disease or immune deficiency
- People who have difficulty swallowing or absorbing oral medications (confirm with trial site)
- People with an active infection or active tuberculosis requiring treatment
- People with a known allergy to the trial drugs HRS-8080 or Dalpiciclib, or any of their ingredients
- Women who are pregnant, breastfeeding, or planning to become pregnant during the study
- People with a significant history of neurological or psychiatric conditions, or a history of substance or drug misuse
- People with other serious physical or mental health conditions, or abnormal laboratory results, that the trial doctors consider would make participation unsafe or affect the results
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
Contact this trial
Phone: +0518-81220121
Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.
GP referral letter
Print a one-page summary to share with your doctor.
Trial details
Where this trial is recruiting
Primary endpoints
Dose-limiting toxicity (DLT); Maximum tolerated dose (MTD); Recommended phase II dose (RP2D); Safety endpoints: Incidence and severity of adverse events (AEs) and serious adverse events (SAEs); Outcome endpoint: Objective Response Rate (ORR)
Can't join this trial?
Data last synced from ClinicalTrials.gov: 28 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.