Sacral Neuromodulation for Male Overactive Bladder

Key Inclusion Criteria: 1. Participants aged ≥ 18 years at the time of enrollment 2. Able to complete bladder diaries and patient questionnaires 3. Primary diagnosis of OAB (urinary urgency incontinence (UUI) or urinary frequency (UF)). 4. Willing and capable to provide written informed consent and agrees to comply with specified evaluations at clinical investigational sites and attend all follow-up assessments for up to 1 year Key Exclusion Criteria: 1. Any patient that is not a suitable candidate per investigator discretion 2. Recent prostate therapy or procedure within the last 6 months at the time of enrollment 3. Any neurological condition that could interfere with normal bladder function, including stroke, epilepsy, multiple sclerosis, Parkinson's disease, clinically significant peripheral neuropathy, or spinal cord injury (e.g., paraplegia) 4. Previously implanted with a sacral neuromodulation device, including inactive SNM devices 5. Any prior treatment with an Implantable Tibial Nerve Stimulation (ITNS) 6. Positive response to Percutaneous Tibial Nerve Stimulation (PTNS) within the last 3 months at the time of enrollment 7. Underwent an external trial with any sacral neuromodulation device and was deemed a non-responder by a physician 8. Any significant medical condition that is likely to interfere with study procedures, device operation, or likely to confound evaluation of study objectives at the discretion of the participating physician. 9. Uncontrolled diabetes 10. Known allergic reactions to components of the Axonics SNM System, including titanium, zirconia, polyurethane, epoxy, or silicone