Study Stopped
Decision was made to not go forward with the study
Magnetic Resonance-guided High-Intensity Focused Ultrasound (MR-HIFU) Used for Mild Hyperthermia
A Feasibility Study of Magnetic Resonance-guided High-Intensity Focused Ultrasound (MR-HIFU) Used for Mild Hyperthermia in Human Subjects
1 other identifier
interventional
N/A
0 countries
N/A
Brief Summary
This study will help to elucidate the treatment sites in the extremities and pelvis for which MR-guided HIFU heating is feasible, which has the potential to be beneficial for patients with conditions at those sites (soft tissue sarcoma, cervical cancer, etc.). The investigators anticipate that successful completion of this study will lead to clinical trials in those feasible sites of interest to determine the safety and efficacy of administering therapeutic levels of heat for hyperthermia or other applications.
Trial Health
Trial Health Score
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Started Sep 2017
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Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 29, 2016
CompletedFirst Posted
Study publicly available on registry
January 2, 2017
CompletedStudy Start
First participant enrolled
September 30, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 30, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
September 30, 2018
CompletedOctober 6, 2017
October 1, 2017
1 year
December 29, 2016
October 4, 2017
Conditions
Outcome Measures
Primary Outcomes (3)
Feasibility of the MR-HIFU device as measured by whether an area can be heated to the designated temperature and held at that temperature for an appropriate time frame
-Temperature in the participant will be monitored using MR thermometry with the MR scanner
1 day (2 hour timeframe)
Feasibility of the MR-HIFU device as measured by whether an area can be heated while simultaneously maintaining patient comfort
* Patient comfort will be measured by the Comfort Score. Before the scan, participants will be asked to rate any pain, discomfort, in the area to be heated, as well as any anxiety or claustrophobia on a scale of 1-10 with 1 being minimal/none and 10 being extreme. The skin area to be treated will also be reviewed for any redness/discoloration. After the scan, the same questions will be asked again of the subject. * Participants will be contacted by phone 5-10 days following participation in the study. Participants will be asked to describe any negative effects in the area heated since participation in the study, including pain, discomfort, and/or cosmetic changes (such as skin redness). Participants will be asked to score pain/discomfort on a scale of 1-10, with 1 being minimal/none and 10 being extreme.
Up to 10 days
Feasibility of the MR-HIFU device as measured by whether coupling can be maintained with the body area in the same position while having contact with the transducer for an appropriate time frame.
-Patients' skin will be cooled using the MR-HIFU system's direct skin cooling device to minimize over heating of the skin, unless one or more gel pads are required to achieve proper coupling to the HIFU system. In order to ensure good contact with the surface of the HIFU interface, participants may be shaved or have other hair-removal products applied to limited regions of their body.
1 day (2 hour timeframe)
Secondary Outcomes (3)
Behavior of hyperthermia delivery as measured by the build-up of time until the different treatment cells can reach a desired uniform temperature
1 day (2 hour time frame)
Behavior of hyperthermia delivery as measured by if the heating cell behavior is the same in healthy and tumor tissues
1 day (2 hour time frame)
Behavior of hyperthermia delivery as measured by post-treatment heat diffusion behavior to anticipate any issues when heat is given at a clinically relevant level
Up to 10 days
Study Arms (1)
MR-HIFU
EXPERIMENTAL* Philips 1.5T MRI scanner equipped with a Sonalleve V2 HIFU system will be used * Will be scanned in the MRI in 1 or more positions to the extremities and/or pelvis while aligned to the HIFU system. The HIFU device will then be used to apply sub-clinical levels (≤ 41°C) of heat to one or more small volumes. Regions will be heated to the desired temperature for variable short durations of time not exceeding 30 minutes. * After the session is complete, the patient will be removed from the MR-HIFU system and, following a 15-30-minute period of monitoring for any adverse events, allowed to leave. * Before the scan, after the scan and 5-10 days following the scan, participants will be asked to rate any pain, discomfort, in the area to be heated, as well as any anxiety or claustrophobia on a scale of 1-10 with 1 being minimal/none and 10 being extreme. The skin area to be treated will also be reviewed for any redness/discoloration.
Interventions
-Heating will not be performed in two areas of the body near each other (for example, not heating in two different places of the same thigh) to minimize the risk of overheating any one part of the subject's body. Heating a second target site is not mandatory, even if time allows, and the participant may refuse.
Eligibility Criteria
You may qualify if:
- At least 18 years of age
- Willing and able to provide informed consent
- Patients only: must have a tumor in extremity muscle tissue or in the pelvis.
You may not qualify if:
- Contraindications for MRI (e.g., unsafe MRI implanted devices, shrapnel, history of metal fragments in eyes, neurostimulators, excessive size and weight, claustrophobia)
- Pregnant
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Michael Altman, Ph.D.
Washington University School of Medicine
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- DEVICE FEASIBILITY
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 29, 2016
First Posted
January 2, 2017
Study Start
September 30, 2017
Primary Completion
September 30, 2018
Study Completion
September 30, 2018
Last Updated
October 6, 2017
Record last verified: 2017-10
Data Sharing
- IPD Sharing
- Will not share