USPIO-enhanced and Diffusion-weighted MRI for the Detection of Pelvic Lymph Node Metastases
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Purpose
Preoperative detection of lymph node metastases in patients with prostate or bladder cancer is crucial for selection of the appropriate treatment strategy (surgery, androgen deprivation with/or without radiation therapy or chemotherapy) and thus for patient prognosis. Until now CT or MRI have been the modalities of choice for preoperative staging procedures. However, current morphological assessment of lymph nodes based on size and shape is unable to detect smaller metastases or liable to give false positive results on lymph nodes with reactive hyperplasia. We hypothesize that USPIO-enhanced MRI combined with DW-MRI will be able to detect pelvic lymph node metastases preoperatively with high sensitivity and specificity.
| Condition | Intervention | Phase |
|---|---|---|
|
Prostate Cancer Bladder Cancer |
Other: Imaging: diffusion-weighted MRI Other: Sinerem (USPIO) enhanced MRI |
Phase 3 |
| Study Type: | Interventional |
| Study Design: | Allocation: Non-Randomized Endpoint Classification: Efficacy Study Intervention Model: Factorial Assignment Masking: Open Label Primary Purpose: Diagnostic |
| Official Title: | Noninvasive Detection of Clinically Occult Lymph Node Metastases in Prostate and Bladder Cancer Evaluated by USPIO-Enhanced MRI and Diffusion-Weighted MRI: A Histopathological Correlation |
- Discrimination of N positive (N+) vs. N negative (N0) patients (prostate and bladder cancer) using diffusion-weighted imaging, USPIO enhancement and both. [ Time Frame: 1 year ] [ Designated as safety issue: No ]
- Preoperative localization of all suspected positive nodes in accordance to the predefined regions on both sides and in comparison with histopathology. [ Time Frame: 1 year ] [ Designated as safety issue: No ]
- Node-by-node analysis of USPIO-enhanced and DW-MRI positive lymph nodes with histopathology. [ Time Frame: 2-3 years ] [ Designated as safety issue: No ]
| Enrollment: | 130 |
| Study Start Date: | September 2007 |
| Study Completion Date: | March 2011 |
| Primary Completion Date: | March 2011 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
A
Diffusion-weighted MRI
|
Other: Imaging: diffusion-weighted MRI
Diffusion-weighted MRI of the entire pelvis to detect lymph node metastases
|
|
B
Sinerem (USPIO)- enhanced MRI
|
Other: Sinerem (USPIO) enhanced MRI
USPIO (Sinerem) will be administered intravenously immediately after the first MR examination at a dose of 2.6 mg Fe/kg body weight diluted in 100 ml of saline (optimal dose according to: (9, 10)) during a period of about 30 minutes under medical supervision. Postcontrast MR imaging will be performed 24-36 hours after contrast medium injection.
Other Name: SINEREM
|
Eligibility| Ages Eligible for Study: | 18 Years to 90 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Patients with histologically proven prostate cancer (T1-2N0M0 Gleason score 6-10) scheduled for radical prostatectomy or patients with histologically proven bladder cancer (T1-3bN0M0G3) scheduled for cystectomy
- Written informed consent to participate in this trial.
Exclusion Criteria:
- Patients with contraindications for MRI (e.g. pacemaker, metal implants, claustrophobia).
- Patients in a critical cardiovascular state, with risk of decompensation after administration of the USPIO contrast agent.
- Patients with hemochromatosis or an allergy to dextran or iron compounds.
- Pregnant or breast-feeding women.
- Patients who have received gadolinium complexes within 2 days or iron oxide particles within 7 days before MRI.
- Patients who underwent chemotherapy or radiotherapy before surgery.
- Patients whose degree of cooperation is incompatible with carrying out the study.
- Patients with contraindications to Glucagon administration.
Contacts and Locations| Switzerland | |
| Inselspital | |
| Bern, Switzerland, 3010 | |
| Principal Investigator: | Harriet C Thoeny, MD | University Hospital Inselspital, Bern, Switzerland |
More Information
Publications:
Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
| Responsible Party: | Harriet C. Thoeny, MD, University Hospital Inselspital, Berne |
| ClinicalTrials.gov Identifier: | NCT00622973 History of Changes |
| Other Study ID Numbers: | SNF320000-113512/1, KEK101_06, SNF320000-113512/1, SWISSMEDIC2007DR3215 |
| Study First Received: | February 13, 2008 |
| Last Updated: | October 7, 2011 |
| Health Authority: | Switzerland: Swissmedic |
Keywords provided by University Hospital Inselspital, Berne:
|
Prostate cancer Bladder cancer Pelvic lymph node metastases Diffusion-weighted MRI |
Sinerem (USPIO)-enhanced MRI Imaging influence on surgery Noninvasive detection of pelvic lymph node metastases Influence of imaging protocol on surgical outcome |
Additional relevant MeSH terms:
|
Urinary Bladder Neoplasms Body Weight Neoplasm Metastasis Prostatic Neoplasms Urologic Neoplasms Urogenital Neoplasms Neoplasms by Site Neoplasms |
Urinary Bladder Diseases Urologic Diseases Signs and Symptoms Neoplastic Processes Pathologic Processes Genital Neoplasms, Male Genital Diseases, Male Prostatic Diseases |
ClinicalTrials.gov processed this record on May 16, 2013