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Late PET/CT acquisition for improved tissue characterization and assessment of treatment response: prospective data collection in clinically indicated examinations in oncology.

Late PET/CT acquisition for improved tissue characterization and assessment of treatment response: prospective data collection in clinically indicated examinations in oncology. - Late PET/CT Imaging

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00027307
Enrollment
600
Registered
2021-11-26
Start date
2023-07-04
Completion date
Unknown
Last updated
2025-10-06

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

Conditions

C85 C81 C61 C80 C15 C31 C32 C33 C34 C21 C20 C22.1 C43 C80

Interventions

Group 1: As part of the clinically indicated PET/CT examination (routine), patients receive additional (late) PET/CT measurements 2-11 hours after the first (regular) PET/CT measurement (a maximum of

Sponsors

Universitätsklinikum Tübingen
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 99 Years

Inclusion criteria

Inclusion criteria: - Justifying clinical indication for PET/CT examination, - Patients with predominantly one of the following oncological diseases: Lymphoma (Hodgkin's, non-Hodgkin's), prostate cancer, neuroendocrine tumors, patients treated with radiation oncology (esophageal cancer, head and neck tumors, lung cancer, rectal cancer, anal cancer), cholangiocellular carcinoma, malignant melanoma, CUP, - Patients able to grasp the nature and extent of pseudonymized prospective data collection, - Patients who can tolerate a waiting time of 2-11 hours between regular and late PET/CT measurements with a maximum examination time of 30-60 minutes in the PET/CT scanner, - Age =18 years, - Written informed consent from the patient.

Exclusion criteria

Exclusion criteria: - Pregnant and breastfeeding women, - Patients with claustrophobia, - Patients with severely reduced general condition and/or problems/pain when lying on their backs, so that waiting time and further lying time may not be tolerated, - Exclusion criteria according to Radiation Protection Ordinance, - Limited capacity of the patient to give consent.

Design outcomes

Primary

MeasureTime frame
Definition of an optimal time of examination for complementary late PET/CT in different oncological diseases.

Secondary

MeasureTime frame
- Differentiation between tissues with nonspecific and/or inflammation-related radiotracer uptake and tissues with tumor-associated radiotracer uptake, - Investigation of physiological late radiotracer enrichment of parenchymal reference organs (liver, spleen) versus radiotracer enrichment of parenchymal tumors with the aim of improving the "lesion-to-background" ratio, - More specific assessment of treatment response of chemotherapies, immunotherapies and -modulators, radionuclide therapies, and radiotherapies, - Investigation of progression-free survival and evaluation of (semi)-quantitative PET parameters with prognostic value, - Investigation of dosimetric aspects of late PET acquisition.

Countries

Germany

Contacts

Public ContactChristian Reinert

Universitätsklinikum Tübingen, Radiologie, Diagnostische & Inerventionelle Radiologie

christian.reinert@med.uni-tuebingen.de07071-29-68442

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 12, 2026