Sacral Neuromodulation for Chronic Pelvic Pain

Inclusion Criteria:

1. Provision of signed and dated informed consent form

2. Stated willingness to comply with all study procedures and availability for theduration of the study

3. Female, aged 22-70

4. Chronic pelvic pain (= pain below umbilicus) score of 4 or greater on 10-point VAS,present for 6 months or greater (screening patient)

5. Failed at least 1 or more conservative treatments (e.g. pelvic floor physicaltherapy, biofeedback, behavioral modification, oral pharmacotherapy, bladderinstillations)

6. No changes to current regimen of medications for their pelvic pain for > 4 weeksprior to screening

7. For females of reproductive potential: use of highly effective contraception (e.g.licensed hormonal or barrier methods), for at least 1 month prior to screening andagreement to use such a method during study participation

8. Participant agrees not to start any new treatment interventions for CPP prior toVisit 4 (Primary Endpoint)

Exclusion Criteria:

1. History of any active pelvic cancer

2. Any significant medical condition that is likely to interfere with study procedures,device operation, or likely to confound evaluation of study endpoints

3. Concurrent pain management strategies within the past 3 months that may interfere ormask study intervention (e.g. pelvic floor physical therapy, shockwave therapy,trigger point injections, bladder instillations)

4. Any psychiatric or personality disorder at the discretion of the study physician.This does not include depression or generalized anxiety disorders that are stable.

5. Current symptomatic urinary tract infection (UTI) or more than 6 UTIs in past year

6. Severe or uncontrolled diabetes (A1C > 7, documented in the last 3 months) ordiabetes with peripheral nerve involvement

7. Interstitial cystitis diagnosis with Hunner's lesions as this is a severeinflammatory bladder condition that can only be treated with eradication of thelesions or a cystectomy. SNM would be be expected to help for IC with Hunner'slesions

8. Previously implanted with a sacral neuromodulation device or participated in asacral neuromodulation trial

9. Subject with documented history of allergy to titanium, zirconia, polyurethane,epoxy, or silicone

10. Implantation of spinal cord stimulator and/or drug delivery pumps, whether turned onor off

11. A female who is breastfeeding or of child-bearing potential with a positive urinepregnancy test or not using adequate contraception

12. Current treatment for active malignancy (skin cancers excluded)

13. Patients with spinal pathology that could confound study results. This may includeparticipants with cauda equina syndrome, spinal stenosis, neurogenic claudication,lumbar radiculopathy, patients with primary complaints of leg pain with numbness andor weakness, patients with a primary pain compliant that is vascular in origin,clinical evidence of progressive neurologic pathology, mechanical instability orother spinal pathology that requires surgical intervention, spine or visceral painsecondary to neoplasm, visceral pain in the upper abdomen rather than the pelvis,current diagnosis of fibromyalgia participants with significant cognitiveimpairment, participants with a condition currently requiring or likely to requireuse of diathermy or MRI or history of any other condition that in the opinion of theinvestigator could put the participant at risk or interfere with study resultsinterpretation. (screening patient).

14. Participants involved in ongoing litigation and or injury claims or workerscompensation claims.

15. Participation in a current clinical trial or within the preceding 30 days

Note- to preserve the scientific integrity of the study some criteria have been omitted from this posting. All eligibility criteria will be listed at the close of the study.