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CompletedNCT01751529Updated Mar 17, 2017

Open-label Pilot Evaluating Renal Lesions w/ Contrast-enhaced US in Patients w/ Renal Cancer

An Early Phase 1 interventional study of Contrast-enhanced Ultrasound and Perflutren lipid in Kidney Cancer, sponsored by UNC Lineberger Comprehensive Cancer Center. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2017-03-17.

Sponsored by UNC Lineberger Comprehensive Cancer Center · Early Phase 1, Interventional, and Diagnostic

Phase
Early Phase 1
Study type
Interventional
Enrollment
48
Allocation
Not applicable
Ages
18 Years and older
Sex
All
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Study summary

This prospective pilot study is designed to evaluate the accuracy of contrast-enhanced ultrasound when used to evaluate renal lesions in two different populations; patients with known renal tumors (Cohort 1) and patients with a risk factor for renal malignancy in whom their screening ultrasound shows an indeterminate or possibly malignant renal mass (Cohort 2).

Read the detailed description

This prospective pilot study is designed to evaluate the accuracy of contrast-enhanced ultrasound using microbubble contrast agent (perflutren lipid; Definity®) when used to evaluate renal lesions in two different populations; patients with known renal tumors (Cohort 1) and patients with a risk factor for renal malignancy in whom their screening ultrasound shows an indeterminate or possibly malignant renal mass (Cohort 2).

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Conditions studied

  • Kidney Cancer

Keywords

  • renal malignancy
  • Pilot Study
  • LCCC 1219
  • UNC Lineberger
  • kidney cancer
  • contrast-enhanced ultrasound
  • ultrasound
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In context

Kidney Neoplasms

956 studies on the registry are indexed under Kidney Neoplasms; 210 are open to participants now.

This study's enrollment of 48 is above the median of 43 across 650 interventional studies indexed under Kidney Neoplasms.

Browse Kidney Neoplasms studies →

Lead sponsor

UNC Lineberger Comprehensive Cancer Center is the lead sponsor of 414 studies on the registry; 96 are open to participants now.

Of its 32 completed or terminated interventional studies of FDA-regulated products, 25 (78%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Able to provide written informed consent
  2. Willing to comply with protocol requirements
  3. At least 18 years of age
  4. Cohort 1:

    • Be eligible for radical or partial nephrectomy or ablative therapy based upon at least one renal lesion identified during previous contrast enhanced CT or MR.

    OR

  5. Cohort 2:

    • High risk group (patient recommended for routine surveillance screening for renal malignancy)
    • Have at least one kidney lesion identified but incompletely characterized on a screening US, CT, or MR exam

Exclusion criteria

Exclusion Criteria:

  1. Critically ill or medically unstable and whose critical course during the observation period would be unpredictable (e.g., chronic obstructive pulmonary disease (COPD) requiring oxygen)
  2. Known hypersensitivity to sulfur hexafluoride or to any component of perflutren lipid (Definity®)
  3. Right to left shunt, severe pulmonary hypertension (Pulmonary artery pressure >90mmHg), or adult respiratory distress syndrome
  4. Active cardiac disease including any of the following:

    • Severe congestive heart failure (class IV in accordance with the classification of the New York Heart Association)
    • Unstable angina.
    • Severe arrhythmia (i.e. ventricular tachycardia, flutter fibrillation; ventricular premature complexes occurring close to the preceding T-wave, multifocal complexes).
    • Myocardial infarction within 14 days prior to the date of proposed Definity® administration.
    • Uncontrolled systemic hypertension (Blood pressure: systolic blood pressure (BP) >150 mm Hg and/or diastolic BP >90 mm Hg despite optimal medical management not controllable by medication to achieve BP \<15/90)
  5. Is in an intensive care setting
  6. Has an unstable neurological disease (e.g recent stroke or TIA symptoms (\<3 months)) cerebrovascular accident (including transient ischemic attacks (TIAs) within the 3 months before signing of informed consent
  7. Undergone an invasive procedure on kidney lesion (e.g. tissue biopsy, surgery, nonsurgical cytoreductive procedure) in-between identification of lesion via US without contrast and perflutren lipid administration
  8. Has previously been entered into this study or has received an investigational drug within the 30 days prior to admission into this study
  9. Has any other medical condition or other circumstances that would significantly decrease the chances of obtaining reliable data or of achieving the study objectives such as:

    • Mental illness
    • Drug abuse
  10. Female patient who is pregnant or lactating (the possibility of pregnancy has to be excluded by negative serum or urine B-HCG results, obtained within 24 hours before the perflutren lipid administration, or on the basis of patient history, e.g.: tubal ligation, hysterectomy or a minimum of 1 year without menses).
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Study design

Phase
Early Phase 1
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
48 participants (actual)

Study arms

  • Experimental
    Contrast-enhanced Ultrasound

    Procedure: Contrast-enhanced Ultrasound · Drug: Perflutren lipid

Interventions

  • ProcedureContrast-enhanced Ultrasound

    All patients will undergo a contrast-enhanced ultrasound prior to planned resection or ablative therapy or as part of routine screening for kidney cancer.

    Also known as: Contrast-enhanced US

  • DrugPerflutren lipid

    All patients will receive a contrast-enhanced ultrasound using microbubble contrast agent (perflutren lipid; Definity®) prior to planned resection or ablative therapy or as part of routine screening for kidney cancer.

    Also known as: Definity®

06

What researchers measure

Primary outcomes

  1. Feasibility of using contrast-enhanced ultrasound in diagnosing renal malignancy in patients with known renal disease (Cohort 1) and in patients with a risk factor for renal malignancy diagnosed with suspicious or indeterminate lesions (Cohort 2)

    Primary analyses will include 1) estimating the sensitivity of contrast enhanced ultrasound in Cohort 1 using the pathological outcome or biopsy result from ablative therapy as gold standard and 2) estimating sensitivity in Cohort 2 using pathology and follow-up results as gold standard (when tissue biopsy is not indicated nor surgery planned the truth standard diagnosis will be based on 12 month follow-up data of disease status). Exact 95% confidence intervals for sensitivity estimate will be reported.

    Time frame: 12 months

Secondary outcomes

  1. Feasibility of comparing the sensitivity and specificity of contrast enhanced ultrasound to traditional imaging techniques (CT and MRI) in detecting renal lesions in patients already diagnosed with a renal malignancy

    The estimates obtained in Cohort 1 will be compared to the published figures of the conventional CT and MRI method. For Cohort 2 patients who undergo surgery, the percentage of subjects who are correctly diagnosed (benign and malignancy) will be reported along with exact 95% CI. Frequency tables will be used to describe associations. Appropriate descriptive summary statistics such as mean, median and standard deviation of tumor measurement will be provided to quantify and characterize renal masses.

    Time frame: 12 months

07

Study locations

1 site
  • Lineberger Comprehensive Cancer Center
    Chapel Hill, North Carolina 27599, United States
08

References and documents

Publications

  • Chang EH, Chong WK, Kasoji SK, Fielding JR, Altun E, Mullin LB, Kim JI, Fine JP, Dayton PA, Rathmell WK. Diagnostic accuracy of contrast-enhanced ultrasound for characterization of kidney lesions in patients with and without chronic kidney disease. BMC Nephrol. 2017 Aug 9;18(1):266. doi: 10.1186/s12882-017-0681-8. PubMed 28793871 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 17, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01751529
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Responsible party
Sponsor
First posted
Dec 18, 2012
Start date
May 2013
Primary completion
Nov 2015
Completion
Nov 2015
Last update
Mar 17, 2017

Study contacts

Kimryn Rathmell, MD
principal investigator · University of North Carolina
Wui Chong, MBBS, FRCR
principal investigator · University of North Carolina

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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