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Breathing trick could sharpen lung cancer radiation

NCT ID NCT05283564

Symptom relief Sponsor: Stanford University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 29, 2026 · Last updated Jun 30, 2026 · Updated 1 time

Summary

This pilot study tests a breathing method called percussive ventilation breathhold (PVB) to help people hold still during lung cancer radiation. The goal is to see if the technique can be used successfully by healthy volunteers and lung cancer patients. If it works, it may allow doctors to deliver radiation more precisely to tumors while sparing healthy lung tissue.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Percussive Ventilation Breathhold (PVB) technique
What this could lead to
If successful, this breathing technique could make lung radiotherapy more precise, potentially reducing damage to healthy tissue.
What could go wrong
This is a small pilot study with only 25 participants, so results may not apply broadly. The technique may be difficult for some patients to perform.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

25 people

The number who actually took part.

Started

Nov 2022

Finished

Oct 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: Arm 1: Healthy volunteers age 18 or older Arm 1: Ability to understand and the willingness to sign (personally or by a legal authorized representative) the written IRB approved informed consent document. Arm 2: Patients with a diagnosis of primary lung cancer or lung metastases of any primary tumor origin Arm 2: Patients deemed clinically eligible to be treated with standard of care lung SABR for patient arm Arm 2: Patients of any gender age 18 or older Arm 2: Patients with ECOG Performance Status 0-2 and select patients with Performance Status 3 deemed to be suitable candidates based on common sense clinical judgment on the risks versus benefits of SABR Arm 2: Ability to understand and the willingness to sign (personally or by a legal authorized representative) the written IRB approved informed consent document. Exclusion Criteria: Arm 1: No Pregnant Individuals. All individuals of child bearing potential (last menstrual period within the previous 12 months and not surgically sterile) will be tested for pregnancy and documented by study team. Arm 2: Patients clinically deemed ineligible for standard of care lung SABR treatment for the patient arm (for example, excessive tumor size, individuals who are pregnant or breast feeding, severe pulmonary fibrosis are relative contraindications for lung SABR and are part of standard of care clinical decision making). Arm 2: Patients with newly-developed pneumothorax Arm 2: Patients with critical acute illness precluding SABR in the judgment of the treating physician (examples could include active pulmonary embolism and infection requiring inpatient care) Arm 2: Patients with ECOG Performance Status 4

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Conditions

The condition(s) this trial relates to.

lung cancer lung neoplasm

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Lung cancer

Contacts and locations

Locations

  • Stanford Cancer Institute

    Palo Alto, California, 94305, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.