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Combination of 68Ga-PSMA PET Data With Magnetic Resonance Spectroscopy Data (MRS) for Evaluating Prostate Cancer

NCT04154280 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 50

Last updated 2019-11-06

No results posted yet for this study

Summary

Prostate cancer is the second most common cancer among man and the fourth most occurring over all . Characterization and management of the diagnosed prostate cancer is a challenging task due to its clinically and morphologically diversity. Clinically, this cancer range from indolent growing slowly malignancy, which does not threatened the patient life, to aggressive tumor that metastasize rapidly with very bad prognosis. Therapy of prostate cancer ranges from a "watch and wait" approach to hormone deprivation therapy to aggressive surgical, radiation, and cryosurgical therapies depending on the cancer characteristics. Prostate cancer is diagnosed using digital rectal examination, serum prostate-specific antigen (PSA) testing and transrectal ultrasonography (US)-guided biopsies . Imaging technologies have been adapted as a non-invasive method to obtain a comprehensive assessment of the disease. MRI is widely used and more specifically multiparameter MRI (mMRI) for detection, staging and tumor localization. mMRI uses multiphase modes including diffusion-weighted and dynamic contrast-enhanced imaging in addition to T2-weighted imaging to identify and classify cancer type . Magnetic Resonance Spectroscopy (MRS) is MRI technique that allow detection of tissue metabolic composition which is occasionally used to characterize prostate cancer, however is not used as a standard procedure. By suppression of water and fat signal, MRS sequence can detect relationship between lower concentration prostatic metabolites such as citrate, choline, creatine, and polyamines in the cell cytosol and in the extra cellular ducts.

Other imaging modalities used to characterize prostate cancer include ultrasound (US), computerized tomography (CT), functional imaging like bone scanning (BS) and hybrid imaging like choline based positron emission tomography and CT (PET/CT). However all of these modalities show disappointing sensitivity .

Conditions

Interventions

DIAGNOSTIC_TEST

PET/MR scan

* The PET will be performed with 68Ga-PSMA tracer. * The 3 tesla magnet of the MRI will be used with sequence allowing MRS acquisition, additional sequences will include T2-weighted contrast and diffusion weighted contrast. * Images will be analyzed visually and quantitatively. Quantitative analysis will include MR parameters such as DWI apparent diffusion coefficient (ADC) and PET quantitative metabolic data such as standard uptake values (SUV) or Ki (in case dynamic PET protocol will be applied). In addition, content relationship between metabolic entities detected will be extracted. Quantitative data will be correlated to clinical and pathological data to check accuracy, specificity and sensitivity.

Sponsors & Collaborators

  • Tel-Aviv Sourasky Medical Center

    lead OTHER_GOV

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
120 Years
Sex
MALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-04-10
Primary Completion
2021-05-10
Completion
2022-04-10

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04154280 on ClinicalTrials.gov