- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04437030
Multiparametric Photoacoustic Imaging in the Course of Radiation Therapy of Malignant Head and Neck Tumors
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Multispectral photoacoustics enable non-invasive, inexpensive and dose-free real-time imaging of light-absorbing molecules (absorbers), e.g. Deoxyhemoglobin and oxygenated hemoglobin in human tissue. This allows blood oxygen saturation (sO2) to be determined at depths of up to several centimeters. Measurements of correlates to blood volume and collagen concentration are also made possible. In photoacoustic imaging, the tissue to be examined is irradiated with nanosecond short, near-infrared (650 - 1300nm) laser pulses. If laser light is locally absorbed by a tissue structure, it expands thermoelastically, which triggers an ultrasonic pressure wave, which is measured with the aid of an ultrasonic head. The initial pressure distribution and thus the absorption in the tissue can then be reconstructed. Since different molecules show distinct absorption behavior depending on the wavelength in the near infrared, by acquiring several wavelengths it is possible to estimate which absorbers are in which concentration in a tissue structure. The effectiveness and tolerability of modern high-precision radiation therapy for head and neck tumors largely depends on the quality of the imaging. The potential diagnostic benefits of photoacoustics in the radiotherapy of patients with head and neck tumors principally concern the target volume definition, the implementation of image-guided, adaptive radiotherapy and imaging tumor follow-up as well as the early detection of tumors.
Multispectral photoacoustics primarily enable the analysis of tumor hypoxia, which has been associated several times with increased radio resistance and an unfavorable prognosis. In addition, other factors, e.g. the blood volume and the collagen content in the tissue are analyzed.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
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Heidelberg, Germany, 69120
- University Hopsital Heidelberg
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Willingness and ability to participate
- sufficient knowledge of German to understand the patient / subject information and the declaration of consent,
- tumor disease to be treated by radiotherapy in the neck and neck area,
- Completed wound healing after operative interventions in the head and neck area,
- The patient's consent and written consent,
- the patient's ability to assess the nature and scope as well as possible consequences of the clinical study,
8. Age ≥ 18 years.
Requirement 3 does not apply to the control group of healthy subjects
Exclusion Criteria:
- Pre-radiation in the head and neck area
- Inadequate regression of toxicities from previous therapies
- Indications that the participant is unlikely to adhere to the study protocol (e.g. lack of compliance)
- Missing written declaration of consent
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Patient
Patient with Head and neck cancer
|
The MSOT acutiy Echo device can take ultrasound recordings in addition to photoacoustic recordings.
|
Other: Healthy subjects
Healty subjects with not history of Tumor disease in the Head and neck region
|
The MSOT acutiy Echo device can take ultrasound recordings in addition to photoacoustic recordings.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
diagnostic feasibility of photoacoustic imaging: Oxygen Saturation
Time Frame: previouse to Radiotherapy start
|
Measurement of Oxygen Saturation in the tumor tissue
|
previouse to Radiotherapy start
|
diagnostic feasibility of photoacoustic imaging: Oxygen Saturation
Time Frame: 3 weeks after Radiotherapy start
|
Measurement of Oxygen Saturation in the tumor tissue
|
3 weeks after Radiotherapy start
|
diagnostic feasibility of photoacoustic imaging: Oxygen Saturation
Time Frame: 3 month after Radiotherapy start
|
Measurement of Oxygen Saturation in the tumor tissue
|
3 month after Radiotherapy start
|
diagnostic feasibility of photoacoustic imaging: blood volume
Time Frame: previouse to Radiotherapy start
|
blood volume
|
previouse to Radiotherapy start
|
diagnostic feasibility of photoacoustic imaging: blood volume
Time Frame: 3 weeks after Radiotherapy start
|
blood volume
|
3 weeks after Radiotherapy start
|
diagnostic feasibility of photoacoustic imaging: blood volume
Time Frame: 3 month after Radiotherapy start
|
blood volume
|
3 month after Radiotherapy start
|
diagnostic feasibility of photoacoustic imaging: blood volume
Time Frame: previouse to Radiotherapy start
|
amount of collagen in the tumor tissue
|
previouse to Radiotherapy start
|
diagnostic feasibility of photoacoustic imaging: amount of collagen in the tumor tissue
Time Frame: 3 weeks after Radiotherapy start
|
amount of collagen in the tumor tissue
|
3 weeks after Radiotherapy start
|
diagnostic feasibility of photoacoustic imaging: amount of collagen in the tumor tissue
Time Frame: 3 month after Radiotherapy start
|
amount of collagen in the tumor tissue
|
3 month after Radiotherapy start
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Analysis of Tumor tissue and normal tissue
Time Frame: previouse to Radiotherapy start
|
Differences of Oxygen saturation
|
previouse to Radiotherapy start
|
Analysis of Tumor tissue and normal tissue
Time Frame: 3 weeks after Radiotherapy start
|
Differences of Oxygen saturation
|
3 weeks after Radiotherapy start
|
Analysis of Tumor tissue and normal tissue
Time Frame: 3 month after Radiotherapy start
|
Differences of Oxygen saturation
|
3 month after Radiotherapy start
|
Analysis of Tumor tissue and normal tissue
Time Frame: previouse to Radiotherapy start
|
blood volume
|
previouse to Radiotherapy start
|
Analysis of Tumor tissue and normal tissue
Time Frame: 3 weeks after Radiotherapy start
|
blood volume
|
3 weeks after Radiotherapy start
|
Analysis of Tumor tissue and normal tissue
Time Frame: 3 month after Radiotherapy start
|
blood volume
|
3 month after Radiotherapy start
|
Analysis of Tumor tissue and normal tissue
Time Frame: previouse to Radiotherapy start
|
amount of collagen
|
previouse to Radiotherapy start
|
Analysis of Tumor tissue and normal tissue
Time Frame: 3 weeks after Radiotherapy start
|
amount of collagen
|
3 weeks after Radiotherapy start
|
Analysis of Tumor tissue and normal tissue
Time Frame: 3 month after Radiotherapy start
|
amount of collagen
|
3 month after Radiotherapy start
|
multimodal information about tissue morphology
Time Frame: previouse to Radiotherapy start
|
Registration of photoaccustic and MRI/CT Imaging
|
previouse to Radiotherapy start
|
multimodal information about tissue function
Time Frame: 3 weeks after Radiotherapy start
|
Registration of photoaccustic and MRI/CT Imaging
|
3 weeks after Radiotherapy start
|
multimodal information about tissue function
Time Frame: 3 month after Radiotherapy start
|
Registration of photoaccustic and MRI/CT Imaging
|
3 month after Radiotherapy start
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Sebastian Adeberg, PD, University Hospital Heidelberg
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- MSOT HNC
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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