NCT07709754 · Spiro Medical, Inc.
PULmonary Stimulation for Asthma Relief
(PULSAR)
What this study is about
This study aims to assess the safety and effectiveness of Pulmonary Neuromodulation in patients suffering from moderate to severe asthma
View original scientific description
This study aims to assess the safety and efficacy of Pulmonary Neuromodulation in patients suffering from moderate to severe asthma
Interventions
DEVICE
Spinal Cord Stimulation
Implantation of a Spinal Cord Stimulation system
Primary outcome measures
ACT score
Time frame: 3 months
Proportion of subjects within both groups who achieve an Asthma Control Test (ACT) score \>19
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Subject has a diagnosis of uncontrolled moderate to severe asthma, diagnosed by an Allergist or Pulmonologist, for a minimum of 1 year prior to randomization. "Uncontrolled" status defined by poor symptom control, despite optimized treatment with high-dose ICS-LABA and/or biologics who have a baseline ACT score less than or equal to 15
- Subjects previously or currently on biologics for at least 6 months (Omalizumab, Mepolizumab, Reslizumab, Benralizumab, Dupilumab, Tezepelumab) that are uncontrolled and meet all inclusion and
Exclusion criteria
- 18 to 75 years of age
- Subjects have a baseline AQLQ of less than 2.5
- Subject is a surgical candidate with no contraindications for PNM implantation Exclusion Criteria:
- Current smokers or subjects with a significant smoking history (e.g., \>10 pack years for subjects less than 40 years of age and \>15 pack years for subjects 40 years and older) who have smoked within the last 6 months.
- Other chronic lung diseases including (but not limited to) cystic fibrosis, chronic obstructive pulmonary disease (COPD), idiopathic pulmonary fibrosis (IPF), chronic bronchitis, vocal cord dysfunction, eosinophilic granulomatosis with polyangiitis (EGPA), history of lung cancer, or interstitial lung disease, severe scoliosis or chest wall deformities that affect lung function, or congenital disorders of the lungs or airways.
- Requires continuous anticoagulant medications or taking alternative anticoagulant drugs or supplements within 10 days of implantation
- History of recurrent surgical infections (e.g. MRSA)
- In the 6 weeks prior to enrollment the subject has had a lower respiratory tract infection or asthma exacerbation that required: antibiotics, or systemic corticosteroids.
- Patients prescribed systemic corticosteroids for any condition, other than asthma, in the last 6 weeks. Subjects with asthma on oral corticosteroids taking more than 15mg/day.
- Significant coronary artery occlusive disease, angina, history of myocardial infarction and/or coronary artery stent(s), congestive heart failure, or uncontrolled cardiac arrythmias, cardiac stress test within the last 6 months with an Ejection Fraction of less than 45%
- History of thoracic spine surgery and has no spinal abnormalities, i.e., no more than 5 lumbar vertebrae, no scoliosis, or spinal deformities
- Any significant medical condition that is likely to interfere with study procedures, device operation, or likely to confound evaluation of study endpoints (e.g. Crohn's disease, moderate to severe fibromyalgia, chronic pain, etc.) or a medical condition that requires the subject to be treated with systemic opioids other than for post-surgical pain
- Any neurological condition that could interfere with normal lung function, including stroke, epilepsy, multiple sclerosis, Parkinson's disease, clinically significant peripheral neuropathy, or spinal cord injury (e.g., paraplegia)
- Uncontrolled diabetes (A1C \> 8%, documented in the last three (3) months) or other medical condition determined by the Investigator that should be excluded
- Documented history of allergic response to titanium, platinum, polyurethane, epoxy, or silicone
- Planning to have diathermy, surgery requiring electrocautery, or high output ultrasonic exposure during the course of the study
- Any other implanted devices (e.g., drug delivery pumps, pacemaker, ICD) including neurostimulators whether turned on or off. Passive implants (e.g., prostheses) are allowed, but no implanted metal should be at the Neurostimulator implant site, both the IPG or lead.
- A female with a positive urine pregnancy test or not using adequate contraception
- Currently participating in another treatment clinical trial
- Subject lacks capacity to consent for themselves
Where
- Denver, Colorado
- Gainseville, Florida
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Sep 16, 2026 · Source of record for eligibility and locations