Clinical trial Recruiting at 2 sites Interventional Ages 18 to 75

Pulmonary Neuromodulation for Asthma Relief in Moderate to Severe Asthma

Official title: Randomized, Controlled, Multi-Center, Delayed Activation Feasibility Clinical Study to Evaluate the Safety and Efficacy of Pulmonary NeuroModulation (PNM) for the Treatment of Subjects With Moderate to Severe Uncontrolled Asthma - PULSAR: Pulmonary Stimulation for Asthma Relief

Run by Spiro Medical, Inc. · NCT07709754 · Data updated 2026-11-12

This trial tests pulmonary neuromodulation using spinal cord stimulation in adults with uncontrolled moderate to severe asthma to see if it can help improve symptoms.

More Moderate to Severe Asthma trials

Quick facts

Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment30 (estimated)
SponsorSpiro Medical, Inc.
Industry-sponsored
Drugs / interventionsOmalizumab, Mepolizumab, Reslizumab, Benralizumab, Dupilumab, Tezepelumab
Locations3 sites (Denver, Colorado and 2 other locations)
StatusRecruiting
StartedAugust 30, 2026
Main results expectedJanuary 2027
Study endsJune 2027
Registry record updatedOctober 13, 2026
Trial IDNCT07709754 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults 18 to 75 with uncontrolled moderate to severe asthma despite optimized therapy and planned for PNM implantation.

Probably not a fit

Patients with BMI over 35, current or heavy recent smoking, or other exclusion criteria may not benefit from this approach.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a prospective, randomized, controlled, multi-center feasibility study with delayed activation. It will evaluate the safety and potential efficacy of spinal cord stimulation targeting pulmonary pathways in patients with uncontrolled moderate to severe asthma. Enrollment is anticipated to complete in about 3 months, with follow-up for 6 months per protocol across 3-5 sites in the United States. Participants will be adults aged 18-75 who have not achieved adequate control despite high-dose inhaled therapies and/or biologics, and who are surgical candidates for implantation. Key eligibility requires a diagnosis confirmed by a clinician, low ACT score, reduced quality of life, and prior or current biologic use with uncontrolled disease.

Why it matters

Potential benefit: If successful, the approach could provide an additional treatment strategy to reduce symptoms and improve quality of life for patients with difficult-to-control asthma.

How similar studies have gone: Prior studies in neuromodulation have shown potential benefit in related airway conditions, but this specific pulmonary neuromodulation approach is investigational for asthma.

Who can join: the full rules

Show full inclusion / exclusion criteria
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:

* BMI\> 35
* 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 or 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 it's running

  • University of Florida Health
    Gainesville, Florida, United States
    Recruiting
  • Orlando Health
    Orlando, Florida, United States
    Recruiting
  • National Jewish Health
    Denver, Colorado, United States
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.