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RecruitingNCT07709754PULSARUpdated Sep 16, 2026

PULmonary Stimulation for Asthma Relief

An interventional study of Spinal Cord Stimulation in Moderate to Severe Asthma, sponsored by Spiro Medical, Inc.. Recruiting at 2 sites in United States. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-09-16.

Sponsored by Spiro Medical, Inc. · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This study aims to assess the safety and efficacy of Pulmonary Neuromodulation in patients suffering from moderate to severe asthma

Read the detailed description

The study will be a prospective, randomized, controlled, multi-Center, delayed activation feasibility study.

The study is expected to complete enrollment in approximately 3 months and follow the patients per protocol for 6 months. The study will be conducted at 3-5 sites in the United States.

02

Conditions studied

  • Moderate to Severe Asthma

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Keywords

  • asthma
  • severe asthma
  • neuromodulation
03

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

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

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 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
04

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
30 participants (estimated)

Study arms

  • Experimental
    Treatment arm

    Receives full Spinal Cord Stimulation implant on Day 0. Therapy is activated on Day 0. Safety and efficacy are assessed at 2 weeks, 1 month, 3 months, 4 months, 5 months and 6 months.

    Device: Spinal Cord Stimulation

  • Sham comparator
    Delayed activation arm

    Receives full Spinal Cord Stimulation implant on Day 0. Therapy is activated on Day 90. Safety and efficacy are assessed at 2 weeks, 1 month, 3 months, 3.5 months, 4 months, 5 months and 6 months.

    Device: Spinal Cord Stimulation

Interventions

  • DeviceSpinal Cord Stimulation

    Implantation of a Spinal Cord Stimulation system

    Also known as: Pulmonary Neuromodulation

05

What researchers measure

Primary outcomes

  1. ACT score

    Proportion of subjects within both groups who achieve an Asthma Control Test (ACT) score \>19

    Time frame: 3 months

Secondary outcomes

  1. Asthma related Quality of Life Questionnaire (AQLQ)

    Proportion of subjects within each group who achieve a clinically meaningful improvement in AQLQ

    Time frame: 3 months

06

Study locations

1 of 2 sites recruiting
  • National Jewish Health
    Denver, Colorado 80206, United States
    • Michael E Wechsler, MD · Principal investigator
    Not yet recruiting
  • University of Florida Health
    Gainseville, Florida 32608, United States
    • Andrew Kline · Contact · andrew.kline@neurosurgery.ufl.edu · 724-496-8034
    • Daryl Fields, MD, PhD · Principal investigator
    • Natalia Moguillansky, MD · Sub investigator
    Recruiting
07

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

08

Registry details

Key details

Study ID
NCT07709754
Lead sponsor
Spiro Medical, Inc.
Responsible party
Sponsor
First posted
Jul 17, 2026
Start date
Aug 30, 2026
Primary completion
Jan 2027 (estimated)
Completion
Jun 2027 (estimated)
Last update
Sep 16, 2026

Study contacts

Kurt Gehlsen, MD, PhD
Contact
clinical@spiromedical.com
949-421-6584

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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