NCT04656431

Brief Summary

This phase I trial evaluates the feasibility of using hyperpolarized carbon C 13 pyruvate magnetic resonance imaging (MRI) in diagnosing patients with primary central nervous system lymphoma. This trial aims to see whether MRI using hyperpolarized carbon-13 pyruvate is safe and useful for detecting central nervous system lymphoma and evaluating response to treatment.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
25

participants targeted

Target at P25-P50 for phase_1

Timeline
Completed

Started Jun 2021

Typical duration for phase_1

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 30, 2020

Completed
7 days until next milestone

First Posted

Study publicly available on registry

December 7, 2020

Completed
7 months until next milestone

Study Start

First participant enrolled

June 29, 2021

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2025

Completed
Last Updated

February 9, 2024

Status Verified

February 1, 2024

Enrollment Period

3.8 years

First QC Date

November 30, 2020

Last Update Submit

February 7, 2024

Conditions

Keywords

CNS LymphomaHyperpolarized pyruvate (13C)

Outcome Measures

Primary Outcomes (8)

  • Proportion of participants with treatment-emergent Adverse Events

    The Common Terminology Criteria for Adverse Events (NCI CTCAE version 5.0) will be used to classify and graded any adverse events that occur after the participant has received the hyperpolarized 13C injection.

    1 day

  • Number of participants with abnormal changes in vital signs

    Clinically significant changes in heart rate and blood pressure will be measured pre- and 10 minutes, 1 hour, 24 hours, and 48 hours post- injection as a measure of safety. The occurrence of changes from baseline, at each post-administration time point, greater than a pre-specified magnitude (20 mm Hg for systolic blood pressure, 10 mm Hg for diastolic blood pressure, 10 beats per minute for heart rate).

    1 day

  • Number of participants with abnormal changes in injection site

    Injection site will be monitored for evidence of inflammation or infection. Abnormal injection site findings include, but are not limited to, extravasation, bleeding, hematoma, redness, and infection as a measure of safety.

    1 day

  • Percent of eligible patients that complete the study

    The percentage of participants whom complete the study will be used to determine feasibility with a goal of at least 50%

    Up to 4 months

  • Pyruvate-to lactate conversion (kPL)

    The kinetics of hyperpolarized \[1-13C\] pyruvate and 13C- in cancer models using a compressed sensing dynamic MRSI method

    1 day

  • Number of participants with response

    Radiographic confirmed response with state-of-the-art MRI exam (including diffusion imaging, contrast-enhanced MRI and hydrogen magnetic resonance spectroscopic imaging (H1-MRSI) Determination of response status (complete response, partial response or stable disease) as standard will be made at 4 months after initiation of therapy

    Up to 4 months

  • Signal Amplitudes

    Hyperpolarization of 13C pyruvate, using dynamic nuclear polarization (DNP), enhances nuclear magnetic resonance (NMR) signals. The greater the amplitude of the signal, the larger the number of protons in the image and the brighter the signal will appear.

    1 day

  • Time Dynamics

    For the 2D dynamic data, the time resolution will be 3-5s. For the 3D single time point data the start time will be adjusted based upon when it is anticipated that the lactate/pyruvate will be at a maximum.

    1 day

Study Arms (2)

Cohort 1: Hyperpolarized pyruvate (13C)

EXPERIMENTAL

Histologically proven relapsed PCNSL patients will receive hyperpolarized carbon C 13 pyruvate intravenously (IV) and undergo MRI at baseline. An optional second HP 13C pyruvate injection and MRI acquisition will be offered on same day following completion of the first scan.

Drug: Hyperpolarized pyruvate (13C)Procedure: Magnetic resonance imaging (MRI)

Cohort 2: Hyperpolarized pyruvate (13C)

EXPERIMENTAL

Newly diagnosed PCNSL participants with planned treatment of standard high-dose methotrexate,temozolomide plus rituximab (MT-R) regimen will receive hyperpolarized carbon C 13 pyruvate intravenously (IV) and undergo MRI at baseline and again after three cycles of of standard induction chemotherapy. An optional second HP 13C pyruvate injection and MRI acquisition will be offered on same day following completion of the first scan. Participants in Cohort 2 will also have option to undergo an additional imaging at a later time if the participant's cancer progresses.

Drug: Hyperpolarized pyruvate (13C)Procedure: Magnetic resonance imaging (MRI)

Interventions

Given intravenously (IV) injection prior to imaging

Also known as: 13C
Cohort 1: Hyperpolarized pyruvate (13C)Cohort 2: Hyperpolarized pyruvate (13C)

MRI scan takes an image of brain and/or spinal cord and will take up to 45 minutes to complete

Also known as: MRI
Cohort 1: Hyperpolarized pyruvate (13C)Cohort 2: Hyperpolarized pyruvate (13C)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • For Patients in Cohort 1: Histologically proven PCNSL who have evidence of evaluable disease based on a prior MR scan: measurable disease based on MRI is defined as gadolinium enhancement of a central nervous system (CNS) lymphoma lesion (at least one centimeter (cm) diameter).
  • For Patients in Cohort 2: Histologically proven newly diagnosed PCNSL who will receive standard treatment with high-dose methotrexate, temozolomide plus rituximab (MT-R). These criteria will ensure validity of this study in terms of safety, evaluation of clinically and radiographically relevant disease.
  • To be included in the study all subjects must also meet the following criteria:
  • Patients must be \> 18 years old and with a life expectancy \> 12 weeks.
  • Patients are eligible provided the participant had histologic confirmation of CNS non-Hodgkin lymphoma (NHL), DLBCL-type.
  • Measurable disease based on MRI that shows gadolinium enhancement of CNS lymphoma lesion, (at least one cm diameter) within two weeks of enrollment, is mandatory. Recent MRI must be eligible for review.
  • Concomitant involvement of cerebrospinal fluid/leptomeninges and intraocular compartments is allowed.
  • Patients must have adequate renal function (creatinine \>50 ml/min) before starting therapy. These tests must be performed within 21 days prior to Hyperpolarized Imaging scan.
  • Patients must not have any significant medical illnesses that in the investigator's opinion cannot be adequately controlled with appropriate therapy, would compromise the patient's ability to participate in this study or any disease that will obscure toxicity or dangerously impact response to the imaging agent.
  • Patients must not have New York Heart Association (NYHA) Grade II or greater congestive heart failure
  • Patients must be eligible for treatment with high-dose methotrexate (dose between 1 gm/m\^2 - 8 gm/m\^2).
  • Each participant must sign an institutional review board-approved informed consent document in accordance with federal and institutional guidelines. Patients must sign an authorization for release of their protected health information.
  • Patients must not have a history of any other cancer (except non-melanoma skin cancer or carcinoma in-situ of the cervix), unless in complete remission and off of all therapy for that disease for \>3 yrs.
  • Patients must not be pregnant or breast feeding. Women of childbearing potential are required to obtain a negative pregnancy test within 14 days of Hyperpolarized Imaging scan. Effective contraception (men and women) must be used in subjects of childbearing potential.

You may not qualify if:

  • \. Subjects must be excluded from participating in this study if are not able to comply with study and/or follow-up procedures.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of California, San Francisco

San Francisco, California, 94143, United States

RECRUITING

MeSH Terms

Interventions

Magnetic Resonance Spectroscopy

Intervention Hierarchy (Ancestors)

Spectrum AnalysisChemistry Techniques, AnalyticalInvestigative Techniques

Study Officials

  • James Rubenstein, MD, PhD

    University of California, San Francisco

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

November 30, 2020

First Posted

December 7, 2020

Study Start

June 29, 2021

Primary Completion

March 31, 2025

Study Completion

March 31, 2025

Last Updated

February 9, 2024

Record last verified: 2024-02

Data Sharing

IPD Sharing
Will not share

Locations