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This is a gene therapy study looking at AAV9-Follistatin gene therapy combined with a VEGF plasmid gene therapy that supports blood vessel formation (angiogenesis), aiming to reduce age-related muscle loss. Men and women aged 45-75 with signs of age-related physical decline or a sedentary lifestyle who meet certain health criteria can take part. The study is being conducted in Phase 1/Phase 2 and is currently recruiting participants.
The summary above is a plain-language rendering of the official record. The original English title is shown for reference.
Criteria are reproduced from the ClinicalTrials.gov record in the original English. Only the trial team can determine eligibility.
Inclusion Criteria: * Voluntary written informed consent obtained prior to any study-related procedures * Ability to read, understand, and sign the Informed Consent Form and reliably complete required study documents * Willingness to undergo medical intervention, including genetic therapy, and to comply with the visit schedule and all study procedures * Commitment to maintain a stable medication and supplement regimen throughout the study, with no initiation of new medications, supplements, or performance-enhancing substances unless approved by the Investigator * Men and women aged 45-75 years * Body mass index (BMI) between 17.0 and 30.0 kg/m² at screening * Evidence of age-related physical decline or sedentary lifestyle defined as: * \<150 minutes/week of moderate-intensity activity, or * \<75 minutes/week of vigorous activity, or * \<600 MET-minutes/week, or * Clinical Frailty Scale (CFS) score 3-6 * Active Prospera ZEDE eResidency or Physical Residency * Stable comorbid conditions for at least 3 months prior to screening * Postmenopausal status (women) * Willingness to use reliable contraception for 6 months following therapy * Low or undetectable antibody titers to AAV9 (≤1:100 by ELISA) Exclusion Criteria: * Pregnancy, breastfeeding, or intent to become pregnant; premenopausal status (unless ≥12 months amenorrhea or FSH ≥30 IU/L) * Subjects who have a history of alcohol or drug abuse within 1 year of study entry * Initiation of prohibited medications, supplements, or interventions during the study period that may confound efficacy or safety assessments * Active malignancy * History of malignancy * Strong family history of cancer in first-degree relatives (≥2 relatives with cancer diagnosed \<60 years) * Known hereditary cancer syndrome (BRCA1/2, Lynch syndrome, Li-Fraumeni, FAP, HNPCC) without genetic counseling and enhanced surveillance clearance * History of stroke or transient ischemic attack (TIA) * History of myocardial infarction (MI) or unstable angina (regardless of time since event) * Diagnosed coronary artery disease (CAD) documented by coronary angiography or stress testing * Significant atherosclerotic disease at any location (stenosis ≥50% in carotid, femoral, or other major arteries) * Prior coronary revascularization (percutaneous coronary intervention \[PCI\] or coronary artery bypass grafting \[CABG\]) * Prior valvular repair or replacement * History or current diagnosis of heart failure * Uncontrolled hypertension (SBP \>140 mmHg or DBP \>85 mmHg despite treatment) * Left ventricular ejection fraction (LVEF) \<50%, QTc ≥480 ms, or severe valvular heart disease * Ventricular arrhythmias requiring chronic drug treatment or implantable cardioverter-defibrillator * Presence of pacemaker or persistent left bundle branch block * Known diagnosed cardiomyopathy of any etiology * Significant left ventricular hypertrophy, defined as maximal left ventricular wall thickness ≥15 mm in any segment at end-diastole (by echocardiography or cardiac MRI) * History of venous thromboembolism (DVT, PE, or thrombosis at any site), particularly if unprovoked, or associated with only minor provoking factors (e.g., minor surgery, combined oral contraceptives, short-term immobilization) * Recurrent thrombotic events, including recurrent superficial venous thrombosis * Thrombosis at unusual sites (e.g., mesenteric, portal, or splenic vein thrombosis, Cerebral venous sinus thrombosis, Hepatic vein thrombosis (Budd-Chiari syndrome), Renal vein thrombosis, Retinal vein thrombosis) * Superior vena cava thrombosis not related to central venous catheterization * Strong family history of venous or arterial thrombosis at a young age in first-degree relatives * History of recurrent pregnancy loss or severe obstetric complications suggestive of a hypercoagulable state * High-degree myopia (≥ -6.0 diopters) or pathological myopia without ophthalmologic clearance * History of retinal detachment, vitreous hemorrhage, or retinal vascular disease (diabetic retinopathy, retinal vein occlusion, age-related macular degeneration with neovascularization) * Use of systemic anti-VEGF therapy (e.g., bevacizumab) * Current use of prohibited medications or supplements (see Section 4.3) * Fasting plasma glucose ≥6.0 mmol/L (≥108 mg/dL) at screening * HbA1c ≥6.5% (≥48 mmol/mol) at screening * Known history of diabetes mellitus (any type) * History of peptic ulcer disease within 12 months * Known osteoporosis (DXA T-score ≤ -2.5 at the hip or spine) * Severe pulmonary disease, including COPD or restrictive lung disease (FVC \<49% predicted) * Advanced renal disease (CKD stage 3-5, eGFR \<60 mL/min/1.73 m²) or dialysis dependence * History of cirrhosis or cholestatic liver disease * Chronic viral hepatitis (HBV, HCV) * Autoimmune hepatitis * Active hepatitis or evidence of hepatic decompensation * ALT or AST \>1.5× upper limit of normal (ULN) * Total bilirubin \>1.5× ULN (unless due to Gilbert's syndrome) * Active cholecystitis, symptomatic gallbladder disease (e.g., biliary colic), or any other clinically significant hepatobiliary abnormality * Neurodegenerative disease * Neuromuscular disorder * Psychiatric or movement disorders impairing participation * History of drug-induced myopathy or rhabdomyolysis * Elevated creatine kinase (CK) at screening CK \>1.0× ULN confirmed on two separate occasions at least 48 hours apart * Systemic lupus erythematosus (SLE), including overlap or drug-induced forms * Mixed connective tissue disease (MCTD) * Systemic sclerosis (diffuse, limited, or sine scleroderma) * Inflammatory myopathies (including polymyositis, dermatomyositis, inclusion body myositis, immune-mediated necrotizing myopathy, or overlap myositis) * Primary Sjögren's syndrome requiring systemic immunosuppression * Rheumatoid arthritis requiring biologic therapy or with extra-articular manifestations * Undifferentiated connective tissue disease meeting ≥2 classification criteria * Current or recent use of immunosuppressive agents (within 3 months) * Acute bacterial, fungal, or viral infection, fever, or receipt of live vaccines within 30 days prior to screening * Active hepatitis B infection or reactivation risk (HBsAg positive, HBV DNA detectable, or isolated anti-HBc without anti-HBs) * Hepatitis C infection (detectable HCV RNA or treatment within 6 months) * HIV infection * Active or latent tuberculosis (positive QuantiFERON-TB Gold Plus ≥0.35 IU/mL) * Acute herpesvirus infection, defined as Active HSV-1 or HSV-2 lesions (vesicles, ulcers, crusts) on clinical examination at screening, CMV or EBV IgM positive * Platelet count \<100 × 10⁹/L at screening * Active therapeutic anticoagulation * Known inherited or acquired coagulation disorder * Use of anticoagulants that cannot be safely discontinued prior to study treatment * Severe physical functional limitation (6-Minute Walk Test distance \<150 meters or CFS\>6) * Prior exposure to any AAV gene therapy product (any AAV serotype) * Prior exposure to any investigational drug within 90 days * Participation in another clinical trial within 90 days * Known hypersensitivity to investigational product components or immunosuppressive agents (e.g., prednisone, rapamycin) * Life expectancy \<6 months * Any condition that, in the Investigator's judgment, may pose undue risk, interfere with study outcomes, or impair study participation