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Prostate CancerPhase 1NCT01229618

Hyperpolarized Pyruvate Injection in Subjects With Prostate Cancer

A Phase 1 study testing Hyperpolarized Pyruvate (13C) injection in people with Prostate Cancer, run by University of California, San Francisco at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Current imaging options do not assess prostate cancer well. This study will combine two magnetic resonance imaging modalities, MRI and MRSI, in order to determine the utility to physicians and patients with prostate cancer in making treatment decisions and seeing how well various types of treatment work. Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Prostate Cancer
What is being tested?
Hyperpolarized Pyruvate (13C) injection
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
31 participants
Where
1 siteUnited States
Study dates
Oct 2010to Aug 2013
Phase
Phase 1
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
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • The subject has biopsy-proven prostate cancer and is either undergoing active surveillance ("watchful waiting") or pre primary local treatment for prostate cancer (i.e., prior to either radiation therapy or radical prostatectomy).
  • The subject is able and willing to comply with study procedures and provide signed and dated informed consent.
  • The subject has concordant MRI/1H MRSI findings from a prior MR staging exam performed within 8 weeks of the 13C MRSI exam performed in this study with IMP, or is willing to undergo MRI/1H MRSI in connection with the study exam.
  • Negative test for hepatitis B and hepatitis C.
  • Eastern Cooperative Oncology Group Performance Status of 0 or 1.
  • Laboratory criteria for protocol entry:
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  • Absolute neutrophil count (ANC) >/= 1500 cells/microLiters
  • Hemoglobin >/= 9.0 gm/dL
  • Platelets >/= 100,000 cells/microLiters
  • Estimated creatinine clearance >/= 60 mL/min (by the Cockcroft Gault equation)
  • Bilirubin within normal range
  • Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) within normal range
  • Willing to use contraception during and for 1 month after completion of the study.

Who cannot join

  • The subject has received, or is scheduled to receive, another IMP from 1 month before to 1 month after inclusion in this study.
  • Current or prior androgen deprivation therapy; previous use of a 5-alpha reductase inhibitor is allowed, provided it was discontinued at least 1 month prior to study entry.
  • Poorly controlled hypertension, with blood pressure at study entry >150/90.
  • Contraindication for or inability to tolerate MRI examination.
  • Prostate biopsy within 12 weeks prior to study entry.
  • BMI of less than 18.5 or greater than 32. At the 0.43 ml/kg dose, subject body weight should be less than or equal to 100 kg owing to limitations in the amount of IMP available.
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  • Congestive heart failure or New York Heart Association (NYHA) status >2.
  • A past or present medical history of clinically significant electrocardiogram (EKG) abnormalities, including QT prolongation, a family history of prolonged QT interval syndrome, or myocardial infarction (MI) less than 1 year ago with ensuing unstable EKG.
  • Ongoing acute or chronic pulmonary bronchospastic disease, including a history of chronic obstructive pulmonary disease or asthma, with an exacerbation within the past year.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of California San Francisco

    San Francisco, California, 94143

Other trials in United States

About this study

Official title: A Phase 1 Ascending-dose Study to Assess the Safety and Tolerability and Imaging Potential of Hyperpolarized Pyruvate (13C) Injection in Subjects With Prostate Cancer

Current imaging options do not assess prostate cancer well. This study will combine two magnetic resonance imaging modalities, MRI and MRSI, in order to determine the utility to physicians and patients with prostate cancer in making treatment decisions and seeing how well various types of treatment work. Hyperpolarized pyruvate (13C) is an investigational product that may enhance the imaging capability of MRI and MRSI. Hyperpolarized pyruvate will be injected into the body to determine how it is metabolized and how it's metabolism can be assessed using MR imaging.

The purpose of this study is to determine the safety and metabolism of hyperpolarized pyruvate in humans, and how this can be used to increase the effectiveness of MR imaging with regards to patient care.

Read the detailed description

This is a phase 1 clinical study of an investigational medicinal product (IMP), hyperpolarized Pyruvate (13C) Injection. The study includes the acquisition of magnetic resonance (MR) data and will be performed in men with prostate cancer and intact prostates.

A standard dose-escalation design will be used; initially, 6 subjects will receive IMP at each dose level. As data on both the dynamics of arrival of the IMP and potential imaging efficacy are needed at each dose level, requiring the use of separate MR acquisition sequences, a modified 3+3 design will be applied in each dose cohort. The first 3 subjects will undergo dynamic 13C imaging to define the kinetics of delivery and metabolism of IMP, and the second 3 subjects will undergo 13C MR spectroscopic imaging (MRSI) to obtain 3-dimensional (3-D) spatial information about metabolism of IMP in regions of the prostate with and without cancer involvement.

After the apparent maximum tolerated dose (MTD) has been established, there will be an expansion of the 3-D imaging cohort to 6 subjects (9 subjects in total at this dose level) to obtain additional information regarding safety at the MTD. If >2 subjects from this cohort of 9 subjects experience a dose-limiting toxicity (DLT), the next lower dose will be defined as the MTD. At the dose level with the highest contrast to noise ratio (dose level less than or equal to the MTD) there will be an expansion of the imaging cohort to include another 15 subjects for a total of 18 subjects who undergo 13C 3-D scanning at this dose, to obtain exploratory information concerning the time course and SNR (signal to noise ratio) of the presence of hyperpolarized [1 13C] pyruvate and its metabolites in regions of cancer and benign prostate tissues. The information provided by these data will be used to develop the MR imaging protocol for future clinical trials that will seek to address the sensitivity and specificity of the technology.

Conditions
Prostate Cancer
Being tested
Hyperpolarized Pyruvate (13C) injection
Keywords
Prostate Cancer
Medical subject headings
Prostatic Neoplasms

What participants receive

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

  • Hyperpolarized Pyruvate (13C) injectionDrug

    Also called [1-13C]pyruvic acid, AH111710

    single hyperpolarized pyruvate IV (intravenous) injection followed by MR imaging scans (MRI and MRSI)

Study groups in NCT01229618
Study groupRoleWhat they receive
1Experimental0.14 ml/kg bw - hyperpolarized pyruvate
Receives: Drug: Hyperpolarized Pyruvate (13C) injection
2Experimental0.28 ml/kg bw - hyperpolarized pyruvate
Receives: Drug: Hyperpolarized Pyruvate (13C) injection
3Experimental0.43 ml/kg bw - hyperpolarized pyruvate
Receives: Drug: Hyperpolarized Pyruvate (13C) injection

What is being measured

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

  1. Number of Participants with Adverse Events as a Measure of Safety and Tolerability.

    Assessment of the occurrence of clinically significant changes in safety variables from baseline. Safety endpoints include monitoring for the occurrence of treatment-emergent AEs. Monitoring will occur to evaluate for dose-limiting toxicity.

    Dose-Limiting Toxicity (DLT) is defined as any toxicity greater than or equal to grade 2, 3 or 4, attributable to the imaging agent and occurring within 7 days after administration. The maximum tolerated dose will be the dose level at which <33% DLT occurs.

    Measured: 7 days

Secondary outcomes (2)
  1. to determine the time course and imaging window that provides the best signal-to-noise ratio (SNR) of the presence of hyperpolarized pyruvate (13C).

    The optimum 13C imaging window for maximizing lactate SNR will be determined as the period of time after injection in which hyperpolarized lactate reaches a maximal plateau in the prostate. This plateau results from opposing processes of lactate production from pyruvate and T1 decay (for pre-clinical studies this plateau occurred approximately between 35 and 55 seconds).

  2. To determine the kinetics and prostate metabolism of hyperpolarized pyruvate (13C)

    For the subjects receiving 3-D 13C spectroscopic imaging (the second 3 subjects per dose cohort as well as the expansion cohorts), a fast 13C MRSI sequence will be used to acquire data from the prostate at a time defined by the kinetic studies (approximately 40 seconds after intravenous administration of hyperpolarized pyruvate).

Timeline

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

  1. First posted28 Oct 2010 (estimated)
  2. Study startOct 2010
  3. Primary completionNov 2011
  4. Study completionAug 2013

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Diagnosis
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
31 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01229618
Sponsor's protocol ID
085517
Status last verified
Aug 2014
First submitted
13 Oct 2010
Last updated
5 Oct 2015
Results posted
No
Data monitoring committee
Yes

Publications

  • Albers MJ, Bok R, Chen AP, Cunningham CH, Zierhut ML, Zhang VY, Kohler SJ, Tropp J, Hurd RE, Yen YF, Nelson SJ, Vigneron DB, Kurhanewicz J. Hyperpolarized 13C lactate, pyruvate, and alanine: noninvasive biomarkers for prostate cancer detection and grading. Cancer Res. 2008 Oct 15;68(20):8607-15. doi: 10.1158/0008-5472.CAN-08-0749.

    PubMed 18922937
  • Ardenkjaer-Larsen JH, Fridlund B, Gram A, Hansson G, Hansson L, Lerche MH, Servin R, Thaning M, Golman K. Increase in signal-to-noise ratio of > 10,000 times in liquid-state NMR. Proc Natl Acad Sci U S A. 2003 Sep 2;100(18):10158-63. doi: 10.1073/pnas.1733835100. Epub 2003 Aug 20.

    PubMed 12930897
  • Hricak H, Choyke PL, Eberhardt SC, Leibel SA, Scardino PT. Imaging prostate cancer: a multidisciplinary perspective. Radiology. 2007 Apr;243(1):28-53. doi: 10.1148/radiol.2431030580.

    PubMed 17392247
  • Swanson MG, Zektzer AS, Tabatabai ZL, Simko J, Jarso S, Keshari KR, Schmitt L, Carroll PR, Shinohara K, Vigneron DB, Kurhanewicz J. Quantitative analysis of prostate metabolites using 1H HR-MAS spectroscopy. Magn Reson Med. 2006 Jun;55(6):1257-64. doi: 10.1002/mrm.20909.

    PubMed 16685733
  • Tessem MB, Swanson MG, Keshari KR, Albers MJ, Joun D, Tabatabai ZL, Simko JP, Shinohara K, Nelson SJ, Vigneron DB, Gribbestad IS, Kurhanewicz J. Evaluation of lactate and alanine as metabolic biomarkers of prostate cancer using 1H HR-MAS spectroscopy of biopsy tissues. Magn Reson Med. 2008 Sep;60(3):510-6. doi: 10.1002/mrm.21694.

    PubMed 18727052

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Hyperpolarized Pyruvate (13C) injection in people with Prostate Cancer, run by University of California, San Francisco at 1 site in United States.

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 13 inclusion and 9 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: finished, as of the sponsor's last update on 5 Oct 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. 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.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants with Adverse Events as a Measure of Safety and Tolerability. (time frame: 7 days). 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 NCT01229618, which also lists 5 linked publications.

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 5 Oct 2015.

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