Propranolol Combined With Novel Endocrine Therapy and Androgen Deprivation Therapy (ADT) for Neoadjuvant Treatment in High-Risk Prostate Cancer Patients: A Multicenter, Single-Arm Clinical Study

Inclusion criteria

• Age ≥ 18 years and ≤ 85 years;

• High-risk prostate cancer patients. High-risk prostate cancer is defined as: organ-confined high-risk/very high-risk prostate cancer and locally advanced prostate cancer. High-risk/very high-risk is specifically defined as PSA > 20 ng/mL, biopsy Gleason score ≥ 8, or clinical T stage cT2c or higher, meeting at least one of these three criteria, and without distant metastasis. Local progression typically refers to pelvic lymph node metastasis only; ③ Patients diagnosed with mild to moderate primary hypertension according to the Chinese Hypertension Prevention and Treatment Guidelines (2024 Revised Edition). Hypertension is defined as:

• Office blood pressure ≥140/90 mmHg without antihypertensive medication; or home blood pressure ≥135/85 mmHg; or 24-hour ambulatory blood pressure ≥130/80 mmHg, with daytime blood pressure ≥135/85 mmHg and nighttime blood pressure ≥120/70 mmHg. Specifically: - Systolic blood pressure 140-159 mmHg and/or diastolic blood pressure 90-99 mmHg constitutes mild hypertension; - Systolic blood pressure 160-179 mmHg and/or diastolic blood pressure 100-109 mmHg constitutes moderate hypertension.

• For patient screening, office blood pressure must meet any one of the following criteria:

• Primary hypertension patients who have not used any antihypertensive medication for at least 4 weeks prior to screening, with an average seated office blood pressure (mean of 3 measurements) of 150 mmHg ≤ SBP < 180 mmHg and DBP < 110 mmHg;
• Patients with primary hypertension who have been on stable doses of 1-2 antihypertensive agents (including monotherapy, dual therapy, or fixed-dose combinations) for at least 4 weeks prior to screening, and who are deemed clinically suitable for switching to propranolol or nifedipine, with an average seated office blood pressure of 140 mmHg ≤ SBP < 180 mmHg and DBP < 110 mmHg; ⑤ ECOG (Eastern Cooperative Oncology Group) performance status of 0-1;

⑥ All patients voluntarily sign informed consent and are able to adhere to treatment and follow-up;

⑦ Prostate cancer biopsy specimens and surgically resected tissue are available for subsequent analysis, with sufficient tumor cell content in the pathological specimens;

Exclusion criteria

• Any prior or ongoing PCa treatment, including radiotherapy, chemotherapy, ADT, etc.;

• Individuals contraindicated for propranolol. Specifically including: 1) Patients with asthma and allergic rhinitis; 2) Patients with cardiovascular disease: sinus bradycardia, severe atrioventricular block, cardiogenic shock; 3) Patients with cardiac insufficiency; 4) Patients with hepatic impairment; 5) Patients with hypothyroidism; ③ Patients who have recently (within 3 months) taken beta-blocker medications (e.g., carvedilol, metoprolol);

• Patients with known allergies to any medication used; ⑤ Patients on long-term antiarrhythmic drugs (e.g., amiodarone, sotalol, digoxin, verapamil, flecainide); ⑥ Patients deemed unsuitable for this clinical study by the investigator's judgment;