Trial Outcomes & Findings for Hyperpolarized Carbon C 13 Pyruvate Magnetic Resonance Spectroscopic Imaging in Detecting Lactate and Bicarbonate in Participants With Central Nervous System Tumors (NCT NCT03565367)

NCT ID: NCT03565367

Last Updated: 2023-12-21

Results Overview

The measurement of this drug is the number of participants with Grade 2 or higher related adverse events (except for asymptomatic lab increases)

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

9 participants

Primary outcome timeframe

2 days (+/-2) after the scan

Results posted on

2023-12-21

Participant Flow

Participant milestones

Participant milestones
Measure
Healthy Volunteers
Participants undergo MRI over 45 minutes at baseline, then receive hyperpolarized carbon C 13 pyruvate IV over 30-40 seconds. Within 1 minute, participants undergo MRSI over 3 minutes and MRI over 10 minutes.
Known CNS Malignancy
Participants undergo MRI over 45 minutes at baseline, then receive hyperpolarized carbon C 13 pyruvate IV over 30-40 seconds. Within 1 minute, participants undergo MRSI over 3 minutes and MRI over 10 minutes (participants may receive gadolinium at the discretion of the protocol director).
Overall Study
STARTED
7
2
Overall Study
Received Interventions
3
2
Overall Study
COMPLETED
3
2
Overall Study
NOT COMPLETED
4
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Healthy Volunteers
Participants undergo MRI over 45 minutes at baseline, then receive hyperpolarized carbon C 13 pyruvate IV over 30-40 seconds. Within 1 minute, participants undergo MRSI over 3 minutes and MRI over 10 minutes.
Known CNS Malignancy
Participants undergo MRI over 45 minutes at baseline, then receive hyperpolarized carbon C 13 pyruvate IV over 30-40 seconds. Within 1 minute, participants undergo MRSI over 3 minutes and MRI over 10 minutes (participants may receive gadolinium at the discretion of the protocol director).
Overall Study
No scan due to technical issues
4
0

Baseline Characteristics

Hyperpolarized Carbon C 13 Pyruvate Magnetic Resonance Spectroscopic Imaging in Detecting Lactate and Bicarbonate in Participants With Central Nervous System Tumors

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Healthy Volunteers
n=3 Participants
Participants undergo MRI over 45 minutes at baseline, then receive hyperpolarized carbon C 13 pyruvate IV over 30-40 seconds. Within 1 minute, participants undergo MRSI over 3 minutes and MRI over 10 minutes.
Known CNS Malignancy
n=2 Participants
Participants undergo MRI over 45 minutes at baseline, then receive hyperpolarized carbon C 13 pyruvate IV over 30-40 seconds. Within 1 minute, participants undergo MRSI over 3 minutes and MRI over 10 minutes (participants may receive gadolinium at the discretion of the protocol director).
Total
n=5 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Age, Categorical
Between 18 and 65 years
3 Participants
n=99 Participants
2 Participants
n=107 Participants
5 Participants
n=206 Participants
Age, Categorical
>=65 years
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Sex: Female, Male
Female
2 Participants
n=99 Participants
1 Participants
n=107 Participants
3 Participants
n=206 Participants
Sex: Female, Male
Male
1 Participants
n=99 Participants
1 Participants
n=107 Participants
2 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
2 Participants
n=99 Participants
2 Participants
n=107 Participants
4 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Asian
1 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
Race (NIH/OMB)
White
1 Participants
n=99 Participants
2 Participants
n=107 Participants
3 Participants
n=206 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Region of Enrollment
United States
3 Participants
n=99 Participants
2 Participants
n=107 Participants
5 Participants
n=206 Participants

PRIMARY outcome

Timeframe: 2 days (+/-2) after the scan

The measurement of this drug is the number of participants with Grade 2 or higher related adverse events (except for asymptomatic lab increases)

Outcome measures

Outcome measures
Measure
Healthy Volunteers
n=3 Participants
Participants undergo MRI over 45 minutes at baseline, then receive hyperpolarized carbon C 13 pyruvate IV over 30-40 seconds. Within 1 minute, participants undergo MRSI over 3 minutes and MRI over 10 minutes.
Known CNS Malignancy
n=2 Participants
Participants undergo MRI over 45 minutes at baseline, then receive hyperpolarized carbon C 13 pyruvate IV over 30-40 seconds. Within 1 minute, participants undergo MRSI over 3 minutes and MRI over 10 minutes (participants may receive gadolinium at the discretion of the protocol director).
Number of Participants With Grade 2 or Higher Toxicities
0 Participants
0 Participants

OTHER_PRE_SPECIFIED outcome

Timeframe: Imaging timepoint (up to 15 minutes to obtain scan)

The outcome is defined as the number of participants with hyperpolarized carbon C 13 pyruvate magnetic resonance signal detection above background noise level of both lactate and bicarbonate in all tumors screened.

Outcome measures

Outcome data not reported

Adverse Events

Healthy Volunteers

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Known CNS Malignancy

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Healthy Volunteers
n=3 participants at risk
Participants undergo MRI over 45 minutes at baseline, then receive hyperpolarized carbon C 13 pyruvate IV over 30-40 seconds. Within 1 minute, participants undergo MRSI over 3 minutes and MRI over 10 minutes.
Known CNS Malignancy
n=2 participants at risk
Participants undergo MRI over 45 minutes at baseline, then receive hyperpolarized carbon C 13 pyruvate IV over 30-40 seconds. Within 1 minute, participants undergo MRSI over 3 minutes and MRI over 10 minutes (participants may receive gadolinium at the discretion of the protocol director).
Nervous system disorders
Anosmia
33.3%
1/3 • Up to 4 days
0.00%
0/2 • Up to 4 days
Nervous system disorders
Dysgeusia
33.3%
1/3 • Up to 4 days
0.00%
0/2 • Up to 4 days

Additional Information

Lawrence Recht, MD

Stanford University

Phone: (650) 725-8630

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place