- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05565027
Efficacy and Safety of Pulmonary Function Analysis With Dynamic Digital Radiography Total Respiratory Cycle Photography
Efficacy and Safety of Pulmonary Function Analysis With Dynamic Digital Radiography Total Respiratory Cycle Photography in Healthy Volunteers
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Pulmonary function test is a test to explore the functional status of human respiratory system with the knowledge of exercise respiratory physiology and modern examination technology. It is an important test content for clinical diagnosis, severity assessment, treatment and prognosis assessment of chest and lung diseases, which has been widely used in the fields of respiratory medicine, surgery and anesthesiology. Compared with chest X-rays and CT examinations, which reflect the static function of the chest and lungs, pulmonary function tests can better reflect the dynamic functional changes of the body.
However, pulmonary function test is not well performed to assess the functional status in patients with poor cooperation (e.g., poor lung function, inability to understand cooperation). Dynamic digital X-ray whole respiratory cycle photography uses advanced dynamic radiography and acquisition technology to obtain high-definition dynamic lung images during the whole respiratory cycle of the patient, and uses the industry's first rotating foot pedal to rotate the patient to obtain weighted 3D scan data and single-angle or multi-angle lung data. The patient's lung function is analyzed by algorithmically extracting the patient's full respiratory cycle airway nodes and branches and data statistics. For patients who cannot cooperate with the lung function, it can provid information on the dynamic function of the patient's chest and lungs for doctors to further improve clinical diagnosis and treatment.
At present, the digital X-ray system (DTP580B-3) and the patient position fixation frame MRW-P1 manufactured by Shenzhen Angell Technology Co., Ltd. have passed the inspection by the inspection agency certified by the State Drug Administration of China (NMPA). Clinical trials were conducted to further evaluate the clinical effectiveness and safety of the products.
The lung volume was measured using a pneumotachograph (with a physiological signal recorder) and a digital X-ray system (UC dynamic DR) in the same healthy subject, and the lung volume values measured by each of the reference device were analyzed for consistency to evaluate the validity of the lung volume measurement by the test device. And To evaluate the safety of the lung volume measurement function of the test device in clinical use based on the occurrence of device malfunctions, adverse events and serious adverse events in the trial.
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Lili Guan, PhD
- Phone Number: +8617825846046
- Email: dr_nickguan@163.com
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
① age ≥ 18 years; ② subjects willing to undergo chest radiography; ③ normal pulmonary ventilation function (forced vital capacity (FVC) ≥ 80% of the expected value; forced expiratory volume in first second (FEV1) ≥ 80% of the expected value; 1 second rate (FEV1/FVC) ≥ 70%); ④ can perform tidal breathing, deep inspiration and deep expiration; ⑤ no history of smoking; ⑥ no history of chronic respiratory disease; ⑦ no acute respiratory disease within 4 weeks; ⑧ subjects willing to provide written informed consent
Exclusion Criteria:
① Pregnant and lactating women; ② Inability to stand alone; ③ Severe vertigo and other adverse reactions to rotation in place.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Pneumotachograph
The subject stood on the turntable of the instrument and grasped the postural fixator with both hands up.
The subjects pinched their nose and breathed through the disposable filter mouthpiece connected to the pneumotachograph, taking care not to leak air at the corners of the mouth.
The subjects were instructed to perform tidal breathing, deep inhalation, deep exhalation, etc., and to monitor lung volume by pneumotachograph.
|
The pneumotachograph monitors the flow rate, and the lung volume is calculated by integrating.
|
Experimental: Dynamic digital radiography
The subject stood on the turntable of the instrument and grasped the postural fixator with both hands up.
The subjects pinched their nose and breathed through the disposable filter mouthpiece connected to the pneumotachograph, taking care not to leak air at the corners of the mouth.
The subjects were instructed to perform tidal breathing, deep inhalation, deep exhalation, etc., and to monitor lung volume by dynamic digital radiography analysis.
|
The use of advanced dynamic X-ray photography and acquisition technology can obtain high-definition dynamic lung images of patients throughout the respiratory cycle for analysis.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Lung volume changes
Time Frame: 1 day (The start time is when the subject is positioned and begins to breathe on command, and the end time is when the subject safely exits the x-ray system.)
|
The volume of gas inhaled/exhaled during each respiratory session of the subject during the monitoring period.
|
1 day (The start time is when the subject is positioned and begins to breathe on command, and the end time is when the subject safely exits the x-ray system.)
|
Collaborators and Investigators
Sponsor
Investigators
- Study Chair: Rongchang Chen, PhD, ShenZhen People's Hospital
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- 202101-02
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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