[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"trial:NCT07704931":3,"trial-entities:NCT07704931":113,"trial-summary:NCT07704931":116},{"id":4,"nct_id":4,"org_study_id":5,"brief_title":6,"official_title":6,"overall_status":7,"completion_date":8,"status_verified_date":9,"last_update_date":10,"start_date":11,"sponsor_name":12,"lead_sponsor_class":13,"has_dmc":14,"brief_summary":15,"detailed_description":16,"conditions":17,"keywords":19,"study_type":32,"primary_purpose":33,"phases":34,"enrollment_info":36,"interventions":39,"primary_outcomes":49,"secondary_outcomes":54,"sex":72,"minimum_age":73,"maximum_age":16,"healthy_volunteers":14,"eligibility_criteria":74,"std_ages":89,"locations":92,"central_contacts":102,"overall_officials":103,"references":111,"see_also_links":112},"NCT07704931","SAL 002","Pilot Study to Evaluate Changes in Intra-Epidermal Nerve Fiber Density (IENFD) in Patients With Small-Fiber Neuropathy","ENROLLING_BY_INVITATION","2027-10-30","2026-07","2026-07-15","2026-07-01","TriCity Research Center","INDUSTRY",false,"This prospective observational pilot study will evaluate structural, functional, and patient-reported outcomes in adults with small fiber neuropathy who receive Saluda Evoke ECAP-controlled spinal cord stimulation as part of routine clinical care. The study does not assign, direct, or modify spinal cord stimulation therapy. All decisions regarding patient selection, trial stimulation, permanent implantation, and device programming are made independently by the treating physician according to standard clinical practice.\n\nThe primary objective is to assess change in intra-epidermal nerve fiber density from baseline to 12 months. Secondary objectives include evaluation of quantitative sensory testing, pain intensity, patient-reported outcomes, and correlations between changes in nerve fiber density, sensory function, and neuropathic pain outcomes.\n\nThe study will enroll up to 10 adult participants with clinically diagnosed small fiber neuropathy and chronic neuropathic pain. Research assessments include patient-reported outcome measures, quantitative sensory testing, review of available clinical records, and a 12-month follow-up skin biopsy for intra-epidermal nerve fiber density.\n\nThis aligns with the approved protocol: observational, 10 adults, 12-month participant follow-up, primary IENFD endpoint, and secondary QST\u002Fpain\u002Fcorrelation endpoints.",null,[18],"Small Fiber Neuropathy",[18,20,21,22,23,24,25,26,27,28,29,30,31],"Intra-Epidermal Nerve Fiber Density","IENFD","Spinal Cord Stimulation","SCS","ECAP-Controlled Stimulation","Closed-Loop Stimulation","Saluda Evoke","Quantitative Sensory Testing","QST","Neuropathic Pain","Mixed Neuropathy","EMG\u002FNCS","INTERVENTIONAL","TREATMENT",[35],"NA",{"count":37,"type":38},10,"ESTIMATED",[40],{"type":41,"name":42,"description":43,"armGroupLabels":44,"otherNames":46},"DEVICE","Evoke SCS system","Spinal cord stimulation using the Saluda Evoke system, an ECAP-controlled closed-loop SCS device that monitors neural response and adjusts stimulation in real time. Participants receive SCS therapy as part of routine clinical care. The study observes structural, sensory, pain, and patient-reported outcomes over 12 months and does not assign, direct, or modify device use, implantation, or programming.\n\nThis matches the protocol's device description and keeps the intervention generic enough for ClinicalTrials.gov while still identifying the Saluda Evoke system.",[45],"Saluda Evoke ECAP-Controlled Spinal Cord Stimulation System",[47,48],"ECAP-Controlled Spinal Cord Stimulation","Closed-Loop Spinal Cord Stimulation",[50],{"measure":51,"description":52,"timeFrame":53},"Change in Intra-Epidermal Nerve Fiber Density From Baseline to 12 Months","Change in intra-epidermal nerve fiber density measured by skin biopsy from baseline to 12 months in participants with small fiber neuropathy receiving ECAP-controlled spinal cord stimulation as part of routine clinical care.","Baseline to 12 months",[55,58,62,66,69],{"measure":56,"description":57,"timeFrame":53},"Change in Thermal Detection Thresholds From Baseline to 12 Months","Change in heat and cold detection thresholds measured by quantitative sensory testing as a functional measure of small fiber integrity.",{"measure":59,"description":60,"timeFrame":61},"Change in Numeric Pain Rating Scale Score Over 12 Months","Change in pain intensity measured using the Numeric Pain Rating Scale. The Numeric Pain Rating Scale is an 11-point scale from 0 to 10, where 0 indicates no pain and 10 indicates the worst pain imaginable. Higher scores indicate worse pain.","Baseline, 1 week, 3 months, 6 months, and 12 months",{"measure":63,"description":64,"timeFrame":65},"Patient Global Impression of Change Score Over 12 Months","Participant-reported overall impression of change measured using the Patient Global Impression of Change scale. The scale ranges from 1 to 7, where 1 indicates no change or worsening and 7 indicates a great deal better and a considerable improvement that has made all the difference. Higher scores indicate greater improvement.","1-week, 3 months, 6 months, and 12 months",{"measure":67,"description":68,"timeFrame":53},"Correlation Between Change in IENFD and Change in Quantitative Sensory Testing Thresholds","Correlation between change in intra-epidermal nerve fiber density measured by skin biopsy and change in heat and cold detection thresholds measured by quantitative sensory testing from baseline to 12 months..",{"measure":70,"description":71,"timeFrame":53},"Correlation Between Change in IENFD and Change in Pain Intensity","Correlation between change in intra-epidermal nerve fiber density measured by skin biopsy and change in pain intensity measured using the Numeric Pain Rating Scale from baseline to 12 months. The Numeric Pain Rating Scale is an 11-point scale from 0 to 10, where 0 indicates no pain and 10 indicates the worst pain imaginable. Higher scores indicate worse pain.","ALL","19 Years",{"inclusion":75,"exclusion":83,"raw_text":88},[76,77,78,79,80,81,82],"Age 19 years or older.","Clinically diagnosed small fiber neuropathy based on abnormal intra-epidermal nerve fiber density (IENFD) skin biopsy.","Chronic neuropathic pain with Numeric Pain Rating Scale score of at least 6.","Candidate for ECAP-controlled spinal cord stimulation therapy based on the - - - Principal Investigator's medical judgment.","Able and willing to undergo baseline and 12-month skin biopsies.","Able to comply with 12-month quantitative sensory testing.","Able to provide informed consent.",[84,85,86,87],"Confounding factors that may independently contribute to small fiber damage or alter nerve fiber density, including uncontrolled diabetes defined as HbA1c greater than 8.5% within the last 3 months, autoimmune disorders such as lupus, or history of alcohol abuse.","Contraindications to spinal cord stimulation therapy, including active infection, coagulation disorders, allergy to medical device components, or other relevant surgical\u002Fdevice contraindications.","Uncontrolled medical or psychiatric conditions.","Pregnancy or planning to become pregnant during the study period.","Inclusion Criteria:\n\n* Age 19 years or older.\n* Clinically diagnosed small fiber neuropathy based on abnormal intra-epidermal nerve fiber density (IENFD) skin biopsy.\n* Chronic neuropathic pain with Numeric Pain Rating Scale score of at least 6.\n* Candidate for ECAP-controlled spinal cord stimulation therapy based on the - - - Principal Investigator's medical judgment.\n* Able and willing to undergo baseline and 12-month skin biopsies.\n* Able to comply with 12-month quantitative sensory testing.\n* Able to provide informed consent.\n\nExclusion Criteria:\n\n* Confounding factors that may independently contribute to small fiber damage or alter nerve fiber density, including uncontrolled diabetes defined as HbA1c greater than 8.5% within the last 3 months, autoimmune disorders such as lupus, or history of alcohol abuse.\n* Contraindications to spinal cord stimulation therapy, including active infection, coagulation disorders, allergy to medical device components, or other relevant surgical\u002Fdevice contraindications.\n* Uncontrolled medical or psychiatric conditions.\n* Pregnancy or planning to become pregnant during the study period.",[90,91],"ADULT","OLDER_ADULT",[93],{"facility":94,"city":95,"state":96,"zip":97,"country":98,"geoPoint":99},"Grand Island Pain Relief Center","Grand Island","Nebraska","68803","United States",{"lat":100,"lon":101},40.92501,-98.34201,[],[104,108],{"name":105,"affiliation":106,"role":107},"Pravardhan Birthi, M.D.","TriCity Research Center, LLC","PRINCIPAL_INVESTIGATOR",{"name":109,"affiliation":12,"role":110},"Mahesh Pattabiraman, Ph.D.","STUDY_DIRECTOR",[],[],{"nct_id":4,"conditions":114,"biomarkers":115},[29,18],[],{"nct_id":4,"found":117,"summary":118,"prompt_version":128},true,{"design":119,"status":120,"heading":121,"summary":122,"follow_up":123,"word_count":124,"commitments":125,"compensation":126,"drugs_mentioned":127},"This is an observational pilot study, meaning researchers will watch how the Saluda Evoke SCS system works in 10 participants. It is not a randomized study.","completed","Pilot Study for Spinal Cord Stimulation in Small Fiber Neuropathy","This pilot study is looking at how the Saluda Evoke SCS system (a spinal cord stimulator) affects adults with small fiber neuropathy. This condition causes chronic nerve pain. The study will observe changes in nerve fiber density in your skin (Intra-Epidermal Nerve Fiber Density or IENFD) over 12 months. You might be able to join if you are 19 or older, have a diagnosis of small fiber neuropathy confirmed by a skin biopsy showing abnormal IENFD, experience chronic neuropathic pain with a score of at least 6 on a pain scale, and your doctor believes you are a good candidate for this type of spinal cord stimulation. The study is currently unclear on its recruitment status and plans to enroll 10 participants.","The primary measurement for this study is taken at 12 months after starting the treatment.",122,"You will receive spinal cord stimulation therapy as part of your routine medical care. The study will measure changes in your nerve fiber density from when you start until 12 months later.","Not stated in the trial record.",[42],"v2"]