4D CBCT and Intrafractional Imaging for the Determination of the Most Representative 4D Simulation Planning Technique for Lung SBRT Technique Patients

Completed · Not applicable

Conditions studied: Cancer of Lung

In brief

The researchers plan to investigate two ways of visualizing and planning to account for the respiratory motion which takes place while treating lung tumors with radiation therapy. The researchers will determine if a traditional snapshot (free-breathing) CT or a longer-lasting CT encompassing the breathing cycle better matches a patient's breathing during treatment.

Key facts

Study ID

NCT04717804

Run by

The University of Texas Health Science Center at San Antonio

People needed

12

Starts

2021-08-17

Expected to finish

2023-11-14

Last updated by the study team

2024-06-27

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Age ≥ 18 years.
• Ability to provide informed written consent in either English or Spanish.
• Patients with cancer or presumed cancer involving the lung (primary or secondary) planned to undergo lung SBRT technique or IMRT technique with an SBRT setup in 10 or fewer fractions.

You may not qualify if…

• Current pregnancy, as this is a contraindication to receiving radiation therapy.
• Patients to be treated to multiple targets concurrently.
• Any condition or history as evidenced by patient record and/or self-report that, in the opinion of the investigator, would interfere with adherence to the prescribed pattern of radiation therapy.
• Poor lung function, as judged by the prescribing radiation oncologist, sufficiently limiting to make the patient not a candidate for 4D imaging (for example major differences between the 4D and free-breathing CT scan).

Where it is running

• Mays Cancer Center, UT Health San Antonio — San Antonio, Texas, United States

Full record on ClinicalTrials.gov

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