Hyperpolarized 13C Pyruvate MRI Scan in Predicting Tumor Aggressiveness in Patients With Renal Tumors
Study Details
Study Description
Brief Summary
This feasibility study will evaluate how well hyperpolarized 13C pyruvate magnetic resonance imaging (MRI) scan works in predicting tumor aggressiveness in patients with renal tumors. Hyperpolarized 13C pyruvate is a non-radioactive substance with potential usage in the diagnostic imaging of tumors. Hyperpolarized 13C pyruvate MRI may help doctors determine non-invasively whether a kidney tumor is a benign tumor or cancer, and if cancer, how aggressive it is. This may help doctors and patients with renal tumors in the future to make better treatment decisions.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
Phase 2 |
Detailed Description
PRIMARY OBJECTIVES:
- To investigate the association between HP 13C pyruvate-to-lactate conversion (peak lactate/pyruvate ratio, lactate /pyruvate AUC (area under the curve), the apparent rate constant (kPL) and renal tumor histology (benign renal tumors versus RCCs) and grade (low vs high grade in cases of RCCs).
SECONDARY OBJECTIVES:
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To determine the reproducibility of HP 13C pyruvate MRI in patients who undergo an optional second HP 13C pyruvate MRI.
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To investigate the association between HP 13 C pyruvate-to-lactate conversion and tumor growth rate in patients who are deemed clinically appropriate for active surveillance for their renal tumors.
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To determine the safety of HP 13C pyruvate in renal tumor patients.
EXPLORATORY OBJECTIVES:
- To investigate the association between HP markers (peak lactate/pyruvate, lactate /pyruvate AUC, kPL) and tissue-based markers including Lactate Dehydrogenase A (LDHA) expression and lactate dehydrogenase (LDH) activity, and Monocarboxylate transporter 4 (MCT4) expression on tumor tissues from surgical specimen or from biopsy.
OUTLINE:
Patients receive HP 13C pyruvate intravenously (IV) and then undergo 13C MRI scan 1-2 minutes post HP 13C pyruvate injection. Patients may receive an optional second HP 13C pyruvate injection and undergo 13C pyruvate MRI scan 15 to 60 minutes following completion of the first scan.
After completion of study treatment, patients are followed up 30 minutes.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Experimental: Diagnostic (HP 13C pyruvate MRI) Patients receive HP 13C pyruvate IV and then undergo 13C MRI scan 1-2 minutes post HP 13C pyruvate injection. Patients may receive an optional second HP 13C pyruvate injection and undergo 13C pyruvate MRI scan 15 to 60 minutes following completion of the first scan. |
Drug: Hyperpolarized Carbon C 13 Pyruvate
Given IV
Other Names:
Procedure: Magnetic Resonance Imaging
Undergo MRI
Other Names:
|
Outcome Measures
Primary Outcome Measures
- Comparison between HP 13C pyruvate-to-lactate conversion, as measured by peak lactate/pyruvate ratio with tumor histology and grade. [Up to 12 months]
Descriptive statistics (mean, median, standard deviation, distribution, etc) of the metabolism measures will be calculated. We will use a tree-based cross-validated Classification & Regression Trees (CART) model for predicting benign renal tumors vs. low grade renal cell carcinoma (RCC) vs. high grade RCCs based on the HP 13C pyruvate metabolic data
- Comparison between HP 13C pyruvate-to-lactate conversion, as measured by the lactate /pyruvate area under curve (AUC) with tumor histology and grade. [Up to 12 months]
Descriptive statistics (mean, median, standard deviation, distribution, etc) of the metabolism measures will be calculated. We will use a tree-based cross-validated Classification & Regression Trees (CART) model for predicting benign renal tumors vs. low grade RCCs vs. high grade RCCs based on the HP 13C pyruvate metabolic data;
- Comparison between HP 13C pyruvate-to-lactate conversion, as measured by the apparent rate of constant metabolic flux of HP 13C-pyruvate to lactate (kPL), with tumor histology and grade. [Up to 12 months]
Descriptive statistics (mean, median, standard deviation, distribution, etc) of the metabolism measures will be calculated. We will use a tree-based cross-validated Classification & Regression Trees (CART) model for predicting benign renal tumors vs. low grade RCCs vs. high grade RCCs based on the HP 13C pyruvate metabolic data;
Secondary Outcome Measures
- Estimate of intra-subject agreement for those with optional second scan [Up to 12 months]
For patients who obtained an optional second HP 13 C pyruvate magnetic resonance imaging (MRI), intraclass correlation coefficient (ICC) will be used to estimate the intra-subject agreement. ICCs will be obtained from a one-way analysis of variance model based on 2 serial measurements per subject. The ICC ranges from 0 to 1. An ICC close to 1 indicates high similarity between values from the same group. An ICC close to zero means that values from the same group are not similar. The results will be presented with a 95% confidence interval.
- Comparison of the HP 13C metabolism measures to change in tumor size [Up to 12 months]
For patients who are in active surveillance for their renal tumors, MRI findings will be compared to tumor growth rate while on active surveillance. Correlations of HP 13C metabolism measures to change in tumor size on subsequent surveillance imaging studies will be performed using Pearson or rank correlation.
- Incidence of treatment-related adverse events [1 day, 30 minutes following hyperpolarized 13C pyruvate injection]
Assessment of the occurrence of clinically significant changes in safety variables from baseline. Safety endpoints include monitoring for the occurrence of treatment-emergent AEs. Toxicities will be graded using the National Cancer Institute (NCI) Common Terminology (Toxicity) Criteria for Adverse Events (CTCAE) version 4.0.
Eligibility Criteria
Criteria
Inclusion Criteria:
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Localized renal tumor measuring 2 centimeters (cm) and greater in diameter. To minimize any potential partial volume effects in this pilot study, we have limited the lower size range of the tumor to 2cm. The investigators will include all localized renal tumor measuring 2 cm and greater in diameter in this first study to facilitate obtaining tumors of a range of histology and grade
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The subject is either scheduled to undergo partial or radical nephrectomy at University of California, San Francisco (UCSF), or is deemed clinically appropriate to undergo active surveillance for his/her renal tumor. The subject is able and willing to comply with study procedures and provide signed and dated informed consent
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The subject is willing to undergo standard of care abdominal MRI in connection with the study exam.
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Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
Exclusion Criteria:
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Patients who because of age, general medical or psychiatric condition, or physiologic status cannot give valid informed consent.
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Patients unwilling or unable to undergo magnetic resonance (MR) imaging, including patients with contra-indications to MR imaging, such as cardiac pacemakers or non-compatible intracranial vascular clips.
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Any metallic implant or device that distorts local magnetic field and compromises the quality of MR imaging of the abdomen.
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Prior focal therapy (i.e. ablation) for the renal tumor. In patients with tumor biopsy, imaging study will occur at least 4 weeks following any biopsy to avoid artifact from hemorrhage.
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Poorly controlled hypertension, with blood pressure at study entry >160/100. The addition of anti-hypertensives to control blood pressure is allowed for eligibility determination.
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Congestive heart failure or New York Heart Association (NYHA) status >= 2.
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | University of California, San Francisco | San Francisco | California | United States | 94143 |
Sponsors and Collaborators
- Zhen Wang, MD
- American Cancer Society, Inc.
Investigators
- Principal Investigator: Zhen Jane Wang, MD, University of California, San Francisco
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- 18525
- NCI-2018-03692