An interventional study of Apollo Neuro Device and Sham device in Systemic Sclerosis (SSc), sponsored by Robyn T. Domsic, MD, MPH. Recruiting at 4 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-01-08.
Sponsored by Robyn T. Domsic, MD, MPH · Not applicable, Interventional, and Prevention
The purpose of this study it to test the efficacy of a wearable device to improve symptom management and maximize qualify of life in systemic Sclerosis (SSc) patients in a randomized trial. Specifically, we will evaluate if the Apollo Neuro device may improve the two specific symptoms highest ranked by patients as affecting qualify of life (fatigue, Raynaud phenomenon) as co-primary outcomes.
Systemic sclerosis (SSc) is a multisystem autoimmune disease that is characterized by progressive vasculopathy, excessive fibrosis, and immune system activation. Fatigue in SSc is common and greatly impacts quality of life: The prevalence of fatigue in SSc patients is significantly higher than the general population. Raynaud phenomenon (RP) in SSc is not only the most common SSc manifestation, affecting nearly all but is often the earliest SSc symptom. SSc-RP is the highest ranked SSc-related symptom affecting quality of life, and is a major cause of SSc-related morbidity. There are currently no approved medications to treat RP, SSc-associated RP phenomenon or fatigue in SSc. Thus, a non-pharmacologic intervention has the potential to provide SSc patients with a new treatment modality without common limiting side effects, and access. The Apollo wearable provides transcutaneous vibratory stimulation, and can be worn on the wrist or ankle.
Goal: To recruit 160 SSc patient participants into this randomized, sham-device controlled clinical trial. Patients will be randomized 1:1 to receive the Apollo vs. sham wearable, which they will wear daily for 6 weeks.
Outcome measures focus on quality-of-life.
.
610 studies on the registry are indexed under Scleroderma, Systemic; 218 are open to participants now.
This study's planned enrollment of 160 is above the median of 37 across 446 interventional studies indexed under Scleroderma, Systemic.
Browse Scleroderma, Systemic studies →Robyn T. Domsic, MD, MPH is the lead sponsor of 4 studies on the registry; 2 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Medication exclusions:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Immunosuppression
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
GFR and eGFR (kidney filtering)
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Child-Pugh class
A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Apollo Neuro Device
Device: Apollo Neuro Device
Study participants will be randomized 1:1 (Apollo Neuro device : Sham device) Devices are identical; however, the sham device will be set to a frequency that has no therapeutic benefits.
Device: Sham device
The Apollo Neuro wearable device is an Apple Watch-sized wearable device that delivers vibration at set frequencies , termed transcutaneous vibratory stimulation, or TVS. These low volume sound waves feel like a soothing touch to the skin (TVS) and activate touch receptors. Apollo is controlled via smartphone and worn on the wrist or ankle. The Apollo is fitted with an adjustable band, made of a durable neoprene material with polyester overlays. Participants are asked to wear it daily for a minimum time period for 6 weeks. Users can choose from different modes of vibration, with some being energizing, others relaxing.
The Apollo Neuro is an Apple Watch-sized wearable device that delivers vibration, termed transcutaneous vibratory stimulation, or TVS. The sham device is identical in appearance to the active intervention, but provides a lower frequency vibration that has no known therapeutic benefit.
Change in fatigue
The PROMIS® (Patient-Reported Outcomes Measurement Information System) SF v1.0 Fatigue 13a scale. This is a13-item, patient reported measure of an individual's level of fatigue during their usual daily activities over the past week. The raw score is converted to a T-score for analysis with 50 for the mean and a standard deviation of 10.
Time frame: Baseline, 6 Weeks
Change in average weekly Raynaud attacks
Average number of weekly Raynaud attacks. Over a period of one week, patients will record their Raynaud phenomenon (RP) attack frequency via a smartphone app. The Raynaud app is usable on both Apple iPhones and Android phones.
Time frame: Baseline, 6 Weeks
Change in quality of life
The EuroQol (EQ)-5D-5L will be used. The quality-of-life assessment instrument has 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression plus a patient global assessment visual analog scale (VAS). In the EQ-5D-5L each dimension is ranked on 5 levels of severity. Full health is a score of 1 and values below zero are regarded as a state worse than death.
Time frame: baseline up to week 6
Change in Raynaud phenomenon symptom severity
The ASRAP (Assessment of Scleroderma-associated RAynaud's Phenomenon) Questionnaire Short form is a 10-item patient self-report questionnaire regarding symptoms over the last week. Raw scores are converted to T-score with a median of 50.
Time frame: baseline to week 6
Change in the Raynaud Condition Score
The Raynaud Condition Score is a patient-reported outcome of a single question regarding Raynaud severity. It is a visual analog scale with a results range of 0-100. A score of 0 is no symptoms, and 100 is severe symptoms. It is recommended by OMERACT for assessment of Raynaud phenomenon.
Time frame: baseline to week 6
Change Sleep
PROMIS® Sleep disturbance short form 4a will be used. This 4-item questionnaire uses a 5-point Likert scale for responses, inquiring about symptoms over the last week. Raw scores are converted to T-scores, with a mean of 50 and SD of 10.
Time frame: change from baseline to week 6
Change in pain
We will use the PROMIS pain interference (v1.1- Short Form 4a) questionnaire which poses 4 questions regarding the last week of pain symptoms. Responses are in a 5-point likert scale from not at all to very much. Raw scores are converted to T-scores for analysis with a median of 50 and standard deviation of 10.
Time frame: baseline to week 6
Change in depression
Depression as measured by the Patient Health Questionnaire (PHQ-8). These 8 questions are responded to with a Likert scale of 0(never) up to 3 (always) with a score range of 0-27.
Time frame: change baseline to week 6
Change in Social Function
Captured using PROMIS Short Form v2.0 - Ability to Participate in Social Roles and Activities 4a. This is a 4-question survey, with respondents answering a 5-point likert scale from 'never' to 'always'. Raw scores are converted to T-scores with a mean of 50 and standard deviation of 10.
Time frame: baseline to week 6
Change in dysautonomia symptoms
Change in dysautonomia symptoms as measured with the COMPASS-31 scale. This is a 31-question instrument which includes six domains: orthostatic intolerance, vasomotor, secretomotor, gastrointestinal, bladder and pupillomotor . A higher score indicates worse autonomic function. Following appropriate weighting, this instrument provides an autonomic symptom score from 0 to 100.
Time frame: baseline to week 6
Change in pain intensity
PROMIS® Numeric Rating Scale v.1.0 - Pain Intensity 1a will be used. This is a single question inquiring about pain in the last week, rating from 0 (no pain) to 10 (worst pain).
Time frame: baseline to week 6
Plan to share: Yes — Requests for IPD can be obtained by emailing the PI of the study.
Supporting information: Study protocol, Informed consent form, Clinical study report
Time frame: Data will be available after the study has been completed and published
Access criteria: We will comply with the CDMRP policy for data sharing, while also complying with all pertinent local, state, and federal regulations. All individuals requesting the data sets will be required to enter into a data share agreement that: (1) acknowledges that the data will be stripped of any identifying markers, (2) acknowledge the data will only be utilized for research purposes, and (3) assure that the requesting investigator will destroy the raw data when the research is completed.
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
Contact study teamGet an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Robyn T. Domsic, MD, MPH