本研究的主要目的是更多地了解LOXO-783的安全性、副作用和有效性。LOXO-783可用於治療乳癌和其他具有特定基因（稱為PIK3CA基因）變化的實體腫瘤。如果疾病沒有惡化，參與可能持續長達36個月（ 3年） ，甚至更長時間。
適應症：Breast Cancer
收案條件
納入條件
- Have advanced breast cancer or another solid tumor with the presence of a phosphatidylinositol 3-kinase catalytic subunit alpha (PIK3CA) H1047R mutation (or other Sponsor and safety review committee (SRC)-approved, activating PIK3CA mutations other than H1047R mutation)
- Have adequate archival tumor tissue sample available or be approved by the Sponsor for enrollment if no tumor sample is available.
- Have stopped all cancer treatment and have recovered from the major side effects
- Have adequate organ function, as measured by blood tests
- Have a performance status of 0 or 1 on the Eastern Cooperative Oncology Group (ECOG) scale
- Patients must have
- Measurable disease
- \--- Patients with non-breast tumor types must have at least 1 measurable lesion
- Non-measurable bone disease (at least 1 bone lesion in breast cancer patients only)
- For patients with an estrogen receptor (ER)+ breast cancer diagnosis:
- If female, must be postmenopausal
- If male, must agree to use hormone suppression
- Phase 1a:
- \-- Dose escalation and backfill patients:
- Advanced solid tumor
- Patients may have had up to 5 prior regimens for advanced disease
- Phase 1b:
- Part A:
- ER+/human epidermal growth factor receptor 2 (HER2)- advanced breast cancer
- Patients may have had up to 5 prior regimens for advanced disease ---- Prior cyclin dependent kinase (CDK)4/6 inhibitor therapy required
- Part B:
- ER+/HER2- advanced breast cancer
- Patients may have had up to 2 prior regimens for advanced disease.
- Part C:
- ER+/HER2- advanced breast cancer
- Patients may have had up to 5 prior regimens for advanced disease.
- \---- Prior CDK4/6 inhibitor therapy required.
- Have a diagnosis of diabetes mellitus Type 2
- Part D:
- Advanced breast cancer
排除條件
- Medical Conditions
- Colorectal cancer
- Endometrial cancers with specific concurrent oncogenic alterations
- A history of known active or suspected
- Diabetes mellitus Type 1 or
- Diabetes mellitus Type 2 requiring antidiabetic medication (Phase 1a and all parts of Phase 1b except Part C).
- Serious concomitant systemic disorder
- Known or suspected history of untreated or uncontrolled central nervous system (CNS) involvement.
- Active uncontrolled systemic bacterial, viral, fungal, or parasitic infection, or other clinically significant active disease process
- Prior exposure to phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin (PI3K/AKT/mTOR) inhibitor(s), except in certain circumstances
收案條件維持 ClinicalTrials.gov 原始英文登錄資料，實際收案資格以研究團隊的正式評估與受試者同意書為準。資料來源：ClinicalTrials.gov，每兩週自動更新，最後同步：2026年10月8日。