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Kidney CancerNCT02073110

Optical Biopsy to Improve the Diagnosis of Kidney Cancer

An observational study of Kidney Cancer, run by Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) at 2 sites in Netherlands.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Data from the American Cancer Society shows a 70% increase in incidence of kidney and renal pelvis cancer between 2000 and 2010. This increase is attributed to small renal masses (SRM) that are incidentally discovered by abdominal radiological imaging. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Kidney Cancer
What is being tested?
Percutaneous Optical Biopsy (OCT and DRS)
Type of treatment
Medical device
How many people
194 participants
Where
2 sitesNetherlands
Study dates
Aug 2013to Dec 2016
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients ≥ 18 years of age, with a solid enhancing renal mass suspected for renal cell carcinoma (RCC) and candidates for active (surgical) treatment of the renal mass.

Who may be able to join

  • Age ≥ 18 years
  • Solid, enhancing mass on cross sectional imaging suspect for RCC
  • Scheduled for total or partial nephrectomy or for laparoscopic cryoablation.
  • Signed informed consent

Who cannot join

  • Patients with a renal mass that are not candidates for active treatment will be excluded from the study

Trial locations and contacts

2 sites in 1 country.

MP Laguna Pes, MD. PhD. contact

+31205666928

m.p.lagunapes@amc.uva.nl

Netherlands2 sites, 2 recruiting
  • Free University Medical Center

    Amsterdam, 1081 HV

    RJA van Moorselaar, MD. PhD., +31204440272, Rja.vanmoorselaar@vumc.nl

    Not yet recruiting
  • Academic Medical Center

    Amsterdam, 1105 AZ

    MP Laguna Pes, MD. PhD., +31205666928, m.p.lagunapes@amc.uva.nl

    Peter Wagstaff, MD., +31205666493, p.g.wagstaff@amc.uva.nl

    Recruiting

Other trials in Netherlands

About this study

Official title: Optical Biopsy to Improve the Diagnosis of Kidney Cancer: a Prospective, Observational, Multicentre, In-vivo Study

Data from the American Cancer Society shows a 70% increase in incidence of kidney and renal pelvis cancer between 2000 and 2010. This increase is attributed to small renal masses (SRM) that are incidentally discovered by abdominal radiological imaging. However, 30% of resected SRMs appear benign on histological examination. Conventional biopsy is currently used to provide pathological information prior to resection. However, its non-diagnostic value is high, up to 33% in SRMs, showing the need for diagnostic improvement.

The investigators have shown that optical biopsy (OB) can differentiate malignant from benign tissue and tumor subtypes. However, translation to the clinic requires a phase 2 clinical study. The investigators will use an OB probe that can be combined with a needle puncture during classical biopsy procedures, additionally providing real time micro-scale images containing quantitative information about tissue properties. The investigators are convinced that OB will greatly improve the diagnosis of renal tumor pathology.

Read the detailed description

Rationale:

Renal biopsies can be used in patients with renal mass lesions to diagnose whether it concerns a malignant or benign mass. In case of malignancy, surgery will be the following step. However, 7 to 33% of biopsies are non-diagnostic, what can result in unnecessary surgery (even up to 30% in small renal masses). The investigators think that optical biopsy (OB), a new diagnostic tool based on the absorption en reflection of light in tissues, reduces the non-diagnostic biopsy rate. This could have a direct impact on the quality of life of the patients that are therefore scheduled for an unnecessary surgical procedure. Also, concerns about overtreatment have led to the concept of focal therapy, a selective patient tailored nephron sparing surgical or ablation technique of a lesion, reducing lifetime morbidity and side effects without compromising life expectancy. For this novel form of treatment, accurate identification, grading and demarcation of a lesion is crucial and OB is the ideal platform to provide this approach to an improved cure.

Objectives:

Primary

  • The accuracy of DRS and OCT in the diagnostic of renal malignancy

Secondary

  • The accuracy of DRS and OCT in the diagnostic of renal malignancy and in distinguishing among the 3 main RCC subtypes
  • The accuracy of the combination of the DRS and OCT

Study design:

This is a prospective, observational, multi-centre in-vivo study.

Study population:

Patients ≥ 18 years of age, with a solid enhancing renal mass suspected for renal cell carcinoma (RCC) and candidates for active (surgical) treatment of the renal mass.

Intervention:

Patients will receive an ultrasound guided percutaneous OB followed by a Core biopsy (CB) during the same procedure. The planned institutional surgical protocol will be followed irrespective of the results of OB and CB. During surgery (radical/partial, open/laparoscopic, percutaneous ablation) a new set of DRS and OCT measurements of the tumor and normal tissue will be performed.

Main study parameters/endpoints:

  1. To determine the accuracy of OB to differentiate renal tumor pathology from benign tissue by means of minimal invasive quantitative DRS and OCT.
  2. To determine the differentiation capability of OCT this combined technique to distinguish between the three most common RCC sub-types.
  3. To determine whether OB is a good alternative to the percutaneous biopsy for diagnosing renal cancer.
Conditions
Kidney Cancer
Being tested
Percutaneous Optical Biopsy (OCT and DRS)
Keywords
Kidney cancer, Renal mass, Small renal mass, Optical Coherence Tomography, OCT, Diffuse Reflectance Spectroscopy, DRS, Optical Biopsy, OB
Medical subject headings
Kidney Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Percutaneous Optical Biopsy (OCT and DRS)Device

Study groups in NCT02073110
Study groupRoleWhat they receive
≥ 18 years, solid enhancing renal mass suspected for RCCNot described
Receives: Device: Percutaneous Optical Biopsy (OCT and DRS)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The sensitivity and specificity of DRS and OCT in the detection of renal malignancy

    By measuring the OCT attenuation coefficient (µOCT) and the DRS optical blood absorption (µaHb), and correlating these values to the histopathology results.

    Measured: Participants will undergo OCT/DRS measurements within 2 weeks after inclusion

Secondary outcomes (1)
  1. The sensitivity and specificity of DRS and OCT in differentiating between the three main RCC subtypes

    By measuring the OCT attenuation coefficient (µOCT) and the DRS optical blood absorption (µaHb), and correlating these values to the histopathology results.

    Measured: Participants will undergo OCT/DRS measurements within 2 weeks after inclusion

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Feb 2014 (estimated)
  2. Study startAug 2013
  3. Primary completionDec 2016 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
194 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02073110
Sponsor's protocol ID
NL41985.018.12
Status last verified
Feb 2014
First submitted
20 Feb 2014
Last updated
27 Feb 2014
Results posted
No
Data monitoring committee
Yes

Publications

  • Buijs M, Wagstaff PGK, de Bruin DM, Zondervan PJ, Savci-Heijink CD, van Delden OM, van Leeuwen TG, van Moorselaar RJA, de la Rosette JJMCH, Laguna Pes MP. An In-vivo Prospective Study of the Diagnostic Yield and Accuracy of Optical Biopsy Compared with Conventional Renal Mass Biopsy for the Diagnosis of Renal Cell Carcinoma: The Interim Analysis. Eur Urol Focus. 2018 Dec;4(6):978-985. doi: 10.1016/j.euf.2017.10.002. Epub 2017 Oct 24.

    PubMed 29079496

Questions about this trial

What is this clinical trial studying?

An observational study of Kidney Cancer, run by Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) at 2 sites in Netherlands.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 27 Feb 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Netherlands. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact MP Laguna Pes, MD. PhD. (+31205666928, m.p.lagunapes@amc.uva.nl), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The sensitivity and specificity of DRS and OCT in the detection of renal malignancy (time frame: Participants will undergo OCT/DRS measurements within 2 weeks after inclusion). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02073110, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Feb 2014.

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