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Calypso-based Deep Inspiration Breath Hold (DIBH) Radiation Treatments of Lung Cancer

Calypso-based Deep Inspiration Breath Hold (DIBH) Radiation Treatments of Lung Cancer

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02111681
Enrollment
48
Registered
2014-04-11
Start date
2014-04-30
Completion date
2024-07-01
Last updated
2025-09-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Non-small Cell Lung Cancer (NSCLC)

Keywords

Calypso-based Deep Inspiration Breath Hold (DIBH), radiation treatments, 13-174

Brief summary

The purpose of this study is to test the use of Calypso beacon implants as a way to determine where the lung tumor is located during radiation treatment. The Calypso beacons are small devices that are implanted in the lungs, near the tumor. They are able to send a signal to a tracking system to show where they are, and where the tumor is, as the patient holds their breath for the radiation treatment. The investigators want to find out what effects, good and/or bad, that this has on the patient and the way they treat the cancer in your lungs.

Interventions

DEVICECalypso Beacon Implantation

Bronchoscopic Calypso Beacon Implantation

Sponsors

Varian Medical Systems
CollaboratorINDUSTRY
Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients must have histologic proof of malignancy suitable for thoracic radiation therapy * Patients planning to undergo radiation therapy for primary or recurrent malignancy of the lung or metastatic malignancy to the lung. * Age ≥ 18 years old * KPS ≥ 60% * Ability to hold their breath for \>20 seconds for 5 times * Patients who are able to tolerate flexible bronchoscopy * Patients with life expectancy of at least 12 months * Patients able to have bronchoscopic placement of Calypso as confirmed on a recent (within the past 8 weeks) CT scan. * Patients who are able to comply with the protocol follow-up schedule.

Exclusion criteria

* Patients unable to comply with instructions for DIBH * Patients with implants in the chest region that contain metal or conductive materials (e.g., metal implants, rods, or plates) which Calypso Medical considers will interfere with the Calypso System's electromagnetic localization. * Patients with active implanted devices, such as pacemakers, defibrillators, and drug infusion pumps since the effects of the Calypso System operation on these devices are unknown. * Patients with clinically significant active infections. * Patients with bronchiectasis in the region of the intended implantation sites. * Patients with a history of hypersensitivity to nickel. * Patients whose lung tumors are being monitored with MR imaging (MR imaging of the anchored transponders is safe but yields an image artifact around the anchored transponders). * Posterior lesions that would be \>19cm distance from Calypso detector plate. Patients may be treated in the prone position in order to meet the required minimum distance. * Patients with any other medical condition or laboratory value that would, at the discretion of the investigator, preclude the patient from participation in this clinical study. * Patients who are deemed unable to safely undergo or tolerate flexible bronchoscopy * Patients who are unable to tolerate anesthesia or sedation * Patients enrolled in any other clinical studies the investigator believes to be in conflict with this investigation. * Female patients who are pregnant or nursing

Design outcomes

Primary

MeasureTime frameDescription
Feasibility of Calypso Transponders2 yearsFeasibility is defined as completion of all treatments using the DIBH treatment plan and Calypso transponders.

Secondary

MeasureTime frameDescription
Reproducibility2 yearsWe will compare the visual vs no visual biofeedback treatments (done for each patient) by the number of treatment interruptions.
Measure the Residual Intrafraction Tumor Motion2 yearswill be measured in all 3 dimensions and the euclidean distance will be calculated in milimeters/mm, which will then be correlated with the normal tissue dosimetry by regression analysis.

Countries

United States

Participant flow

Participants by arm

ArmCount
Calypso-based Deep Inspiration Breath Hold (DIBH)
This trial will investigate the feasibility of implanted anchored Beacon ® electromagnetic lung transponders (Calypso ®) to guide and monitor deep-inspiration breathhold (DIBH) treatments in patients with inoperable thoracic malignancies. Bronchoscopic Calypso Beacon Implantation, Simulation - Free-breathing scan - 4D CT scan,- DIBH CT scan Radiation - Treatment setup, - Calypso signal recording, - RT treatment with DIBH with or without visual biofeedback Follow-up - 3 and 6 months after RT with diagnostic CT chest Calypso Beacon Implantation: Bronchoscopic Calypso Beacon Implantation
48
Total48

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyDeath5
Overall StudyLack of Efficacy2
Overall StudyProgression of disease4

Baseline characteristics

CharacteristicCalypso-based Deep Inspiration Breath Hold (DIBH)
Age, Continuous69 years
Ethnicity (NIH/OMB)
Hispanic or Latino
4 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
41 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
3 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
2 Participants
Race (NIH/OMB)
Black or African American
6 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
40 Participants
Region of Enrollment
United States
48 Participants
Sex: Female, Male
Female
27 Participants
Sex: Female, Male
Male
21 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
30 / 48
other
Total, other adverse events
10 / 48
serious
Total, serious adverse events
8 / 48

Outcome results

Primary

Feasibility of Calypso Transponders

Feasibility is defined as completion of all treatments using the DIBH treatment plan and Calypso transponders.

Time frame: 2 years

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Calypso-based Deep Inspiration Breath Hold (DIBH)Feasibility of Calypso TranspondersParticipants who completed all treatments using DIBH treatment plan and Calypso transponders46 Participants
Calypso-based Deep Inspiration Breath Hold (DIBH)Feasibility of Calypso TranspondersParticipants who did not complete all treatments using DIBH treatment plan and Calypso transponders2 Participants
Secondary

Measure the Residual Intrafraction Tumor Motion

will be measured in all 3 dimensions and the euclidean distance will be calculated in milimeters/mm, which will then be correlated with the normal tissue dosimetry by regression analysis.

Time frame: 2 years

ArmMeasureValue (MEAN)
Calypso-based Deep Inspiration Breath Hold (DIBH)Measure the Residual Intrafraction Tumor Motion3 mm
Secondary

Reproducibility

We will compare the visual vs no visual biofeedback treatments (done for each patient) by the number of treatment interruptions.

Time frame: 2 years

Population: Data not collected due to the study team being unable to secure appropriate visual feedback devices to assess this objective.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026