The study is a multicenter, double-blind, sham-controlled trial to evaluate the safety and effectiveness of tcVNS on pain and inflammation associated with JIA. tcVNS is administered with a device that gives off mild electrical impulses through the skin to stimulate the vagus nerve. Part of the vagus nerve and its branches are located in the head and neck. For this study, the impulses will be administered using a small electrode at the cymba concha for participants receiving treatment with active tcVNS and at the neck for participants receiving sham stimulation. The electrode helps to conduct the stimulation through the skin. This stimulation triggers a chemical response through the nerves and has been found to be effective in reducing pain and inflammation in several diseases. The primary objective of this study is to determine the effect of tcVNS on JIA ACR 50 in participants with active JIA. The components of the active and sham tcVNS devices, utilizing the Roscoe Medical TENS 7000, have been FDA 510(k)-cleared and have been determined by the IRB to be a nonsignificant risk device.
AJA01 is a multicenter, double-blind, sham-controlled, 16-week trial to evaluate the safety and effectiveness of tcVNS for the treatment of JIA. A total of 100 participants will be randomized 1:1 to treatment with active tcVNS at the cymba concha or sham stimulation at the neck for 5 minutes once a day for 8 weeks. During this time, participants/parents, and participant assessors will be blinded to treatment assignment; treatments on clinic visit days will be conducted in the clinic under the supervision of a trained, unblinded staff member, and participants will only discuss the stimulation procedure with this staff member. An unblinded site investigator will follow up on any safety events. The double-blind, sham-controlled 8-week period will be followed by an 8-week open-label period in which all participants will receive treatment with active tcVNS at the cymba concha once a day for 5 minutes. Participants and their parents will be told it is likely they will feel the stimulation, but it should not be painful. There are 10 visits for the study, 8 clinic visits and 2 tele-visits. Participants will have physical exams with joint assessments, lab tests, and questionnaire completion by the physicians and participants at each clinic visit. Participants will be trained by the unblinded coordinator to perform stimulation during the clinic visit following the randomization. Participants will perform the stimulation at home for 5 minutes daily. Participants will complete a diary to document the daily stimulation.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
18
Participants being treated with an active tcVNS device will attach the stimulator, lead, and clip electrode to assemble the complete device and coat the electrode surfaces with electrode gel. The electrode will be placed on the cymba concha of a left ear that is free of earrings or other objects, cleaned internally and externally, and coated with a thin layer of electrode gel. The participant will gradually advance the stimulator knob clockwise until they feel the electrical stimulation at a level that is easily tolerated for 5 minutes and is not painful. The participant will apply the stimulation for 5 minutes, then the participant will turn off the stimulator, remove the electrode from the ear, and clean the ear and electrodes with gauze.
Participants being treated with a sham tcVNS device will place adhesive electrodes on the left side of the neck, which has had neck jewelry removed and has been cleaned at the site of treatment. The participant will then connect the lead to the electrodes and the stimulator to assemble the complete sham tcVNS device. The participant will gradually advance the stimulator knob clockwise until they feel the electrical stimulation at a level that is easily tolerated for 5 minutes and is not painful. Participants in this group will be instructed to not turn the knob above "3" on the dial as this is the maximum acceptable treatment level at the neck. The participant will apply the stimulation for 5 minutes, then the participant will turn off the stimulator, remove the electrode from the neck, and dispose of the electrodes.
Participants being treated with an active tcVNS device will attach the stimulator, lead, and clip electrode to assemble the complete device and coat the electrode surfaces with electrode gel. The electrode will be placed on the cymba concha of a left ear that is free of earrings or other objects, cleaned internally and externally, and coated with a thin layer of electrode gel. The participant will gradually advance the stimulator knob clockwise until they feel the electrical stimulation at a level that is easily tolerated for 5 minutes and is not painful. The participant will apply the stimulation for 5 minutes, then the participant will turn off the stimulator, remove the electrode from the ear, and clean the ear and electrodes with gauze.
University of California San Francisco School of Medicine: Department of Pediatrics, Division of Pediatric Rheumatology
San Francisco, California, United States
Nemours Children's Health: Department of Pediatric Rheumatology
Orlando, Florida, United States
Indiana University Medical Center: Riley Hospital for Children Department of Pediatric Rheumatology
Indianapolis, Indiana, United States
Feinstein Institutes for Medical Research, Cohen Children's Medical Center: Pediatric Rheumatology
Lake Success, New York, United States
Stephen D. Hassenfield Children's Center at NYU Langone Health
New York, New York, United States
Division of Pediatric Rheumatology at the University of Utah School of Medicine and Primary Children's Hospital
Salt Lake City, Utah, United States
Seattle Children's Hospital: Rheumatology Clinic
Seattle, Washington, United States
Proportion of Juvenile Idiopathic Arthritis (JIA) American College of Rheumatology (ACR) 50 Responders at Week 8 Compared to Baseline
The JIA ACR 50 is a validated composite response consisting of 6 core criteria: number of joints with active arthritis; number of joints with limited motion; physician's assessment of disease activity (measured on a 10 cm visual analogue scale (VAS)); parent/patient assessment of overall well-being (measured on a 10 cm VAS); a validated measure of physical function, Childhood Health Assessment Questionnaire (CHAQ); and a laboratory measure of inflammation, c-Reactive Protein (CRP). The JIA ACR 50 is achieved if 3 of any 6 core set variables improved by at least 50% from Baseline, and no more than 1 variable worsens by \>30%. A negative change from Baseline in any of the core set variables signifies improvement. Participants missing any of the JIA ACR core criteria at Week 8 are imputed as JIA ACR 50 non-responders at Week 8.
Time frame: Week 8
Proportion of Juvenile Idiopathic Arthritis (JIA) American College of Rheumatology (ACR) 50 Responders at Weeks 4, 12, and 16 Compared to Baseline
The JIA ACR 50 is a validated composite response consisting of 6 core criteria: number of joints with active arthritis; number of joints with limited motion; physician's assessment of disease activity (measured on a 10 cm visual analogue scale (VAS)); parent/patient assessment of overall well-being (measured on a 10 cm VAS); a validated measure of physical function, Childhood Health Assessment Questionnaire (CHAQ); and a laboratory measure of inflammation, c-Reactive Protein (CRP). The JIA ACR 50 is achieved if 3 of any 6 core set variables improved by at least 50% from Baseline, and no more than 1 variable worsens by \>30%. A negative change from Baseline in any of the core set variables signifies improvement. Participants missing any of the JIA ACR core criteria at any visit are imputed as JIA ACR 50 non-responders at that visit.
Time frame: Weeks 4, 12, 16
Proportion of Juvenile Idiopathic Arthritis (JIA) American College of Rheumatology (ACR) 30 Responders at Weeks 4, 8, 12, and 16 Compared to Baseline
The JIA ACR 30 is a validated composite response consisting of 6 core criteria: number of joints with active arthritis; number of joints with limited motion; physician's assessment of disease activity (measured on a 10 cm visual analogue scale (VAS)); parent/patient assessment of overall well-being (measured on a 10 cm VAS); a validated measure of physical function, Childhood Health Assessment Questionnaire (CHAQ); and a laboratory measure of inflammation, c-Reactive Protein (CRP). The JIA ACR 30 is achieved if 3 of any 6 core set variables improved by at least 30% from Baseline, and no more than 1 variable worsens by \>30%. A negative change from Baseline in any of the core set variables signifies improvement. Participants missing any of the JIA ACR core criteria at any visit are imputed as JIA ACR 30 non-responders at that visit.
Time frame: Weeks 4, 8, 12, 16
Proportion of Juvenile Idiopathic Arthritis (JIA) American College of Rheumatology (ACR) 70 Responders at Week 4, 8, 12, and 16 Compared to Baseline
The JIA ACR 70 is a validated composite response consisting of 6 core criteria: number of joints with active arthritis; number of joints with limited motion; physician's assessment of disease activity (measured on a 10 cm visual analogue scale (VAS)); parent/patient assessment of overall well-being (measured on a 10 cm VAS); a validated measure of physical function, Childhood Health Assessment Questionnaire (CHAQ); and a laboratory measure of inflammation, c-Reactive Protein (CRP). The JIA ACR 70 is achieved if 3 of any 6 core set variables improved by at least 70% from Baseline, and no more than 1 variable worsens by \>30%. A negative change from Baseline in any of the core set variables signifies improvement. Participants missing any of the JIA ACR core criteria at any visit are imputed as JIA ACR 70 non-responders at that visit.
Time frame: Weeks 4, 8, 12, 16
Change From Baseline in Juvenile Arthritis Disease Activity Score in 27 Joints (JADAS-27) at Weeks 4, 8, 12, and 16
The JADAS-27 is a measurement of disease activity and is determined by adding the scores of its 4 components: physician's assessment of disease activity (measured on a 10 cm visual analogue scale (VAS)); parent/patient assessment of overall well-being (measured on a 10 cm VAS); number of joints with active arthritis; and a laboratory measure of inflammation, c-Reactive Protein (CRP), normalized to a value between 0 and 10. The JADAS-27 includes the following joints: cervical spine, elbows, wrists, metacarpophalangeal joints (from first to third), proximal inter-phalangeal joints, hips, knees, and ankles. This provides a score in the range of 0-57 with higher scores indicating worse disease activity. A negative change from Baseline signifies improvement.
Time frame: Baseline; Weeks 4, 8, 12, 16
Proportion of Juvenile Idiopathic Arthritis (JIA) American College of Rheumatology (ACR) 50 Responders at Weeks 12 and 16 Compared to Week 8
The JIA ACR 50 is a validated composite response consisting of 6 core criteria: number of joints with active arthritis; number of joints with limited motion; physician's assessment of disease activity (measured on a 10 cm visual analogue scale (VAS)); parent/patient assessment of overall well-being (measured on a 10 cm VAS); a validated measure of physical function, Childhood Health Assessment Questionnaire (CHAQ); and a laboratory measure of inflammation, c-Reactive Protein (CRP). The JIA ACR 50 is achieved if 3 of any 6 core set variables improved by at least 50% from Week 8, and no more than 1 variable worsens by \>30%. A negative change from Week 8 in any of the core set variables signifies improvement. Participants missing any of the JIA ACR core criteria at any visit are imputed as JIA ACR 50 non-responders at that visit.
Time frame: Week 12 and 16
Proportion of Juvenile Idiopathic Arthritis (JIA) American College of Rheumatology (ACR) 30 Responders at Weeks 12 and 16 Compared to Week 8
The JIA ACR 30 is a validated composite response consisting of 6 core criteria: number of joints with active arthritis; number of joints with limited motion; physician's assessment of disease activity (measured on a 10 cm visual analogue scale (VAS)); parent/patient assessment of overall well-being (measured on a 10 cm VAS); a validated measure of physical function, Childhood Health Assessment Questionnaire (CHAQ); and a laboratory measure of inflammation, c-Reactive Protein (CRP). The JIA ACR 30 is achieved if 3 of any 6 core set variables improved by at least 30% from Week 8, and no more than 1 variable worsens by \>30%. A negative change from Week 8 in any of the core set variables signifies improvement. Participants missing any of the JIA ACR core criteria at any visit are imputed as JIA ACR 30 non-responders at that visit.
Time frame: At Weeks 12 and 16
Proportion of Juvenile Idiopathic Arthritis (JIA) American College of Rheumatology (ACR) 70 Responders at Week 12 and 16 Compared to Week 8
The JIA ACR 70 is a validated composite response consisting of 6 core criteria: number of joints with active arthritis; number of joints with limited motion; physician's assessment of disease activity (measured on a 10 cm visual analogue scale (VAS)); parent/patient assessment of overall well-being (measured on a 10 cm VAS); a validated measure of physical function, Childhood Health Assessment Questionnaire (CHAQ); and a laboratory measure of inflammation, c-Reactive Protein (CRP). The JIA ACR 70 is achieved if 3 of any 6 core set variables improved by at least 70% from Week 8, and no more than 1 variable worsens by \>30%. A negative change from Week 8 in any of the core set variables signifies improvement. Participants missing any of the JIA ACR core criteria at any visit are imputed as JIA ACR 70 non-responders at that visit.
Time frame: Weeks 12 and 16
Change From Week 8 in Juvenile Arthritis Disease Activity Score in 27 Joints (JADAS-27)
The JADAS-27 is a measurement of disease activity and is determined by adding the scores of its 4 components: physician's assessment of disease activity (measured on a 10 cm visual analogue scale (VAS)); parent/patient assessment of overall well-being (measured on a 10 cm VAS); number of joints with active arthritis; and a laboratory measure of inflammation, c-Reactive Protein (CRP) normalized to a value between 0-10. The JADAS-27 includes the following joints: cervical spine, elbows, wrists, metacarpophalangeal joints (from first to third), proximal inter-phalangeal joints, hips, knees, and ankles. This provides a score in the range of 0-57 with higher scores indicating worse disease activity. A negative change from Week 8 signifies improvement.
Time frame: Weeks 12 and 16
Longitudinal Trends From Baseline to Week 16 in Juvenile Arthritis Disease Activity Score in 27 Joints (JADAS-27)
The JADAS-27 is a measurement of disease activity and is determined by adding the scores of its 4 components: physician's assessment of disease activity (measured on a 10 cm visual analogue scale (VAS)); parent/patient assessment of overall well-being (measured on a 10 cm VAS); number of joints with active arthritis; and a laboratory measure of inflammation, c-Reactive Protein (CRP) normalized to a value between 0-10. The JADAS-27 includes the following joints: cervical spine, elbows, wrists, metacarpophalangeal joints (from first to third), proximal inter-phalangeal joints, hips, knees, and ankles. This provides a score in the range of 0-57 with higher scores indicating worse disease activity.
Time frame: Baseline; Weeks 4, 8, 12, 16
Number of Participants With a Treatment-emergent Adverse Event From Day 0 to Week 8.
A participant who experienced any of the following untoward or unfavorable medical occurrence(s) associated with the investigational device or any study mandated procedures following the first stimulation on Day 0 and prior to the Week 8 visit: * Grade 1 or higher mild palpitations, documented arrhythmia, or any unpleasant sensations caused by palpitations * Grade 1 or higher stimulation site reactions such as cutaneous irritation, pain, or skin burns * Grade 1 or higher Ear and labyrinth disorders as listed in the Common Terminology Criteria for Adverse Events (CTCAE) v5.0, except those of the middle ear * Grade 1 or higher JIA flares * All other Grade 2 and higher AEs
Time frame: Day 0 to Week 8
Number of Participants With a Treatment-emergent Adverse Event From Week 8 to Week 16
A participant who experienced any of the following untoward or unfavorable medical occurrence(s) associated with the investigational device or any study mandated procedures between Week 8 and Week 16: * Grade 1 or higher mild palpitations, documented arrhythmia, or any unpleasant sensations caused by palpitations * Grade 1 or higher stimulation site reactions such as cutaneous irritation, pain, or skin burns * Grade 1 or higher Ear and labyrinth disorders as listed in the Common Terminology Criteria for Adverse Events (CTCAE) v5.0, except those of the middle ear * Grade 1 or higher JIA flares * All other Grade 2 and higher AEs
Time frame: Week 8 to Week 16
Number of Participants With a Treatment-emergent Serious Adverse Event From Day 0 to Week 8
A participant who experienced any serious untoward or unfavorable medical occurrence(s) associated with the investigational device or any study mandated procedures following the first stimulation on Day 0 and prior to the Week 8 visit.
Time frame: Day 0 to Week 8
Number of Participants With a Treatment-emergent Serious Adverse Event From Week 8 to Week 16
A participant who experienced any serious untoward or unfavorable medical occurrence(s) associated with the investigational device or any study mandated procedures between Week 8 and Week 16.
Time frame: Week 8 to Week 16
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