Use of CEST (Chemical Exchange Saturation Transfer) Imaging in PET/MRI (GlioCEST)
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ClinicalTrials.gov Identifier: NCT05464992 |
Recruitment Status :
Recruiting
First Posted : July 19, 2022
Last Update Posted : January 5, 2023
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Standard Magnetic Resonance Imaging (MRI) is based on the excitation of hydrogen nuclei that are presents in water molecules, which abundance in human body allows for obtention of superior contrast. However, assessing the presence of other molecules than water in tissues is also of great clinical interest to probe metabolites related to physiological body function and pathological conditions.
Chemical exchange saturation transfer (CEST) allow to overcome some limitations of proton magnetic resonance spectroscopy (1H-MRS) by exploiting chemical properties of the targeted molecule through a continuous process of re-saturation and exchange, and thus detecting it with increased sensitivity, from two orders of magnitude. Moreover, CEST technique is based on imaging sequences and can therefore benefit from well-known fast acquisition strategies, as well as improved spatial resolution.
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Glioma Brain Metastases | Other: Additional CEST sequences during PET/MRI exam | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 800 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Other |
Official Title: | Use of CEST (Chemical Exchange Saturation Transfer) Imaging in PET/MRI |
Actual Study Start Date : | December 28, 2022 |
Estimated Primary Completion Date : | December 28, 2036 |
Estimated Study Completion Date : | December 28, 2036 |

Arm | Intervention/treatment |
---|---|
Patients with glioma or brain metastases |
Other: Additional CEST sequences during PET/MRI exam
CE-Marked Advanced Technology Software Modules (ATSM) for Magnetic Resonance Imaging from General Electric Healthcare |
- Obtention, from a set of brain PET-MRI images, of an intratissular pH mapping in patients with glioma or brain metastases [ Time Frame: through study completion, up to 14 years ]Evaluation at the cerebral level on the acquisition images of residual volume in MRI
- Obtention, from a set of brain PET-MRI images, of an intratissular pH mapping in patients with glioma or brain metastases [ Time Frame: through study completion, up to 14 years ]Evaluation at the cerebral level on the acquisition images of tumoral metabolic activity in PET
- Correlate intratissular pH mapping and location of recurrence [ Time Frame: through study follow-up, up to 10 years ]
- Correlate average pH of the tumor and histopathology [ Time Frame: through study follow-up, up to 10 years ]
- Correlate average pH of the tumor and Disease-Free Survival (DFS) [ Time Frame: through study follow-up, up to 10 years ]
- Correlate average pH of the tumor and Overall survival (OS) [ Time Frame: through study follow-up, up to 10 years ]

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Patients admitted to the Nuclear Medicine and Molecular Imaging department of ICANS (Institut de cancérologie strasbourg Europe) for a PET/MRI exam dedicated to:
- Preoperative evaluation of a cerebral expansion lesion
- Evaluation of glioma recurrences
- Evaluation of brain metastases
- Evaluation of recurrence of metastases
Exclusion Criteria:
- Contraindication to the realization of an MRI
- Minor or patients placed under guardianship or supervision
- Patients deprived of liberty
- Patients placed under judicial protection
- Patients that are not able to express their consent
- Pregnant and breastfeeding women

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05464992
Contact: Manon VOEGELIN | (0)368339523 ext 33 | promotion-rc@icans.eu | |
Contact: Claire VIT | (0)368339523 ext 33 | promotion-rc@icans.eu |
France | |
France Institut de cancérologie Strasbourg Europe | Recruiting |
Strasbourg, France | |
Contact: Manon VOEGELIN promotion-rc@icans.eu | |
Principal Investigator: Izzie-Jacques NAMER, MD, PhD | |
Sub-Investigator: Caroline BUND, MD, PhD |
Responsible Party: | Institut de cancérologie Strasbourg Europe |
ClinicalTrials.gov Identifier: | NCT05464992 |
Other Study ID Numbers: |
2022-005 2022-A00910-43 ( Other Identifier: ID-RCB Number ) |
First Posted: | July 19, 2022 Key Record Dates |
Last Update Posted: | January 5, 2023 |
Last Verified: | January 2023 |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Brain Neoplasms Neoplasms Central Nervous System Neoplasms Nervous System Neoplasms |
Neoplasms by Site Brain Diseases Central Nervous System Diseases Nervous System Diseases |