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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT03101176
Other study ID # NL58710.018.07
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date September 7, 2017
Est. completion date September 1, 2022

Study information

Verified date January 2019
Source Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Contact H. Wijkstra, Prof dr ir
Phone +31 20 5666379
Email h.wijkstra@amc.uva.nl
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Rationale: The current limitations in prostate cancer diagnostics, due to lack of accuracy of the available techniques, lead to over- and undertreatment for a significant fraction of patients with prostate cancer. Multiparametric ultrasound (mpUS), a new imaging modality combining different ultrasound parameters, heralds the potential for an accurate imaging-based diagnostic approach accessible to the community at large but formal validation of mpUS against final pathology results are still lacking.

Objective: To validate mpUS as imaging modality for detection and localization of prostate cancer by direct correlation with histopathology of radical prostatectomy specimens


Description:

Systematic transrectal ultrasound (TRUS)-guided biopsies in men with a clinical suspicion of prostate cancer, based on digital rectal examination (DRE) and/or prostate-specific antigen (PSA) has been the diagnostic strategy for years. However, this method has known limited sensitivity and risks, as many men without cancer undergo unnecessary biopsies, clinically insignificant cancers are often detected while significant cancers are missed or under-graded and the biopsy procedure itself carries discomfort and morbidity. Prostate imaging capable of identifying clinically significant disease for targeted biopsy with high accuracy and efficiency is thus of importance. mpMRI (multiparametric magnetic resonance imaging) and mpMRI-targeted biopsies are being increasingly used, and they have improved the ability to detect clinically significant cancers, while reducing the diagnosis of insignificant cancers compared to TRUS-guided biopsies. Nevertheless, mpMRI has been limited by inter-reader variability, high level of expertise requirements and heterogeneity in definitions while mpMRI-targeted biopsies alone still misses clinical significant cancers revealed by TRUS-guided biopsies.

There is an ongoing search for new cost-effective, manageable imaging technologies for adequate prostate cancer diagnosis. Various ultrasound modalities are in development striving to increase cancer detection among which contrast-enhanced ultrasound (CEUS) and elastography. Preliminary results of a multiparametric ultrasound (mpUS) approach, combining these different ultrasound modalities, seem promising. The number and quality of studies available, however, is relatively low, emphasizing the need for further work to define the role of mpUS.

This is an investigator-initiated, prospective in-vivo validation study in humans to validate mpUS as imaging modality for detection and localization of prostate cancer by direct correlation with histopathology. Biopsy-proven prostate cancer patients scheduled for radical prostatectomy will be approached and consented to enter this study. Information about the study will be provided both verbally and in written form.

Participants will undergo a mpUS imaging prior to their surgery. For the contrast enhanced mode of the mpUS an additional infusion of an ultrasound contrast agent through an intravenous cannula will be used during transrectal ultrasound scanning for the purpose of the study.

The mpUS imaging data will be evaluated qualitatively and semi-quantitatively using parametric maps by prostate ultrasound experts blinded for radical prostatectomy histopathology. Histopathology will be evaluated qualitatively by an uro-pathologist blinded for mpUS imaging results. Hence, imaging data will be correlated with histopathology in a blinded fashion using a 3D registration system and 3D reconstruction model. Predictive accuracy of mpUS imaging for detection and localization of prostate cancer on histopathology will be analyzed.

At a later stage, a mpUS classifier, most optimally combining the most relevant ultrasound parameters of each modality in one single resulting mpUS parameter will be developed. Furthermore, the additional clinical value of mpUS imaging in prostate cancer diagnostics will be determined by comparing mpUS results with that of available mpMRI data. mpMRI imaging data will be evaluated by an uro-radiologist using the PI-RADS (Prostate Imaging Reporting and Data System) criteria blinded for radical prostatectomy results.


Recruitment information / eligibility

Status Recruiting
Enrollment 200
Est. completion date September 1, 2022
Est. primary completion date September 1, 2022
Accepts healthy volunteers No
Gender Male
Age group 18 Years and older
Eligibility Inclusion Criteria:

- age = 18 years

- biopsy proven prostate carcinoma

- planned treatment by (robot laparoscopic) radical prostatectomy

- signed informed consent

Exclusion Criteria:

- Chemotherapy, radiotherapy or focal therapy of the prostate for prostate cancer

- Hormonal therapy for prostate cancer within last six months

- History of any clinically evidence of cardiac right-to-left shunts

- Receives treatment that includes dobutamine

- Severe pulmonary hypertension (pulmonary artery pressure >90 mmHg) or uncontrolled systemic hypertension or respiratory distress syndrome

- Has any medical condition or other circumstances which would significantly decrease the chances of obtaining reliable data, achieving study objectives, or completing the study

- Is incapable of understanding the language in which the information for the patient is given

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
SonoVue
The ultrasound contrast agent used for the CEUS specific ultrasound mode

Locations

Country Name City State
Netherlands AMC University Hospital Amsterdam

Sponsors (2)

Lead Sponsor Collaborator
Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) VU University Medical Center

Country where clinical trial is conducted

Netherlands, 

References & Publications (9)

Bjurlin MA, Carter HB, Schellhammer P, Cookson MS, Gomella LG, Troyer D, Wheeler TM, Schlossberg S, Penson DF, Taneja SS. Optimization of initial prostate biopsy in clinical practice: sampling, labeling and specimen processing. J Urol. 2013 Jun;189(6):2039-46. doi: 10.1016/j.juro.2013.02.072. Epub 2013 Feb 26. Review. — View Citation

Borghesi M, Ahmed H, Nam R, Schaeffer E, Schiavina R, Taneja S, Weidner W, Loeb S. Complications After Systematic, Random, and Image-guided Prostate Biopsy. Eur Urol. 2017 Mar;71(3):353-365. doi: 10.1016/j.eururo.2016.08.004. Epub 2016 Aug 17. Review. — View Citation

Branger N, Maubon T, Traumann M, Thomassin-Piana J, Brandone N, Taix S, Touzlian J, Brunelle S, Pignot G, Salem N, Gravis G, Walz J. Is negative multiparametric magnetic resonance imaging really able to exclude significant prostate cancer? The real-life experience. BJU Int. 2017 Mar;119(3):449-455. doi: 10.1111/bju.13657. Epub 2016 Oct 4. — View Citation

Grey A, Ahmed HU. Multiparametric ultrasound in the diagnosis of prostate cancer. Curr Opin Urol. 2016 Jan;26(1):114-9. doi: 10.1097/MOU.0000000000000245. Review. — View Citation

Mottet N, Bellmunt J, Bolla M, Briers E, Cumberbatch MG, De Santis M, Fossati N, Gross T, Henry AM, Joniau S, Lam TB, Mason MD, Matveev VB, Moldovan PC, van den Bergh RCN, Van den Broeck T, van der Poel HG, van der Kwast TH, Rouvière O, Schoots IG, Wiegel T, Cornford P. EAU-ESTRO-SIOG Guidelines on Prostate Cancer. Part 1: Screening, Diagnosis, and Local Treatment with Curative Intent. Eur Urol. 2017 Apr;71(4):618-629. doi: 10.1016/j.eururo.2016.08.003. Epub 2016 Aug 25. — View Citation

Muller BG, Shih JH, Sankineni S, Marko J, Rais-Bahrami S, George AK, de la Rosette JJ, Merino MJ, Wood BJ, Pinto P, Choyke PL, Turkbey B. Prostate Cancer: Interobserver Agreement and Accuracy with the Revised Prostate Imaging Reporting and Data System at Multiparametric MR Imaging. Radiology. 2015 Dec;277(3):741-50. doi: 10.1148/radiol.2015142818. Epub 2015 Jun 18. — View Citation

Postema A, Mischi M, de la Rosette J, Wijkstra H. Multiparametric ultrasound in the detection of prostate cancer: a systematic review. World J Urol. 2015 Nov;33(11):1651-9. doi: 10.1007/s00345-015-1523-6. Epub 2015 Mar 12. Review. — View Citation

Schoots IG, Roobol MJ, Nieboer D, Bangma CH, Steyerberg EW, Hunink MG. Magnetic resonance imaging-targeted biopsy may enhance the diagnostic accuracy of significant prostate cancer detection compared to standard transrectal ultrasound-guided biopsy: a systematic review and meta-analysis. Eur Urol. 2015 Sep;68(3):438-50. doi: 10.1016/j.eururo.2014.11.037. Epub 2014 Dec 3. Review. — View Citation

Ukimura O, Coleman JA, de la Taille A, Emberton M, Epstein JI, Freedland SJ, Giannarini G, Kibel AS, Montironi R, Ploussard G, Roobol MJ, Scattoni V, Jones JS. Contemporary role of systematic prostate biopsies: indications, techniques, and implications for patient care. Eur Urol. 2013 Feb;63(2):214-30. doi: 10.1016/j.eururo.2012.09.033. Epub 2012 Sep 25. Review. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Validation of mpUS Predictive accuracy in terms of sensitivity and specificity of mpUS imaging in the detection and localization of prostate cancer by qualitatively and semi-quantitatively correlation of mpUS imaging to corresponding radical prostatectomy histopathology 5 years
Secondary Differences in mpUS parameters between benign and malignant (low-grade and high-grade) prostate tissue Parameters of mpUS (echogenicity, contrast-agent perfusion, contrast-agent dispersion, contrast-agent velocity, tissuedensity) will be assessed 5 years
Secondary mpUS and mpMRI comparison Comparison of predictive accuracy in terms of sensitivity and specificity of mpMRI imaging and mpUS imaging 5 years
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