Trial Outcomes & Findings for Hyperpolarized 13C Pyruvate MRI for Treatment Response Assessment in Pancreatic Ductal Adenocarcinoma (NCT NCT04565327)
NCT ID: NCT04565327
Last Updated: 2023-11-13
Results Overview
Descriptive statistics will be used to summarize the mean, standard deviation, and 95% confidence interval of the measurements.
TERMINATED
PHASE2
7 participants
Baseline
2023-11-13
Participant Flow
No participants were assigned to Cohort A based on diagnosis
Participant milestones
| Measure |
Cohort A: Single Dose/Image
Participants receive hyperpolarized carbon C 13 pyruvate intravenously (IV) over less than one minute then undergo MRI over 5 minutes at baseline
|
Cohort B: Multiple Dose/Images
Participants receive hyperpolarized carbon C 13 pyruvate IV over less than one minute then undergo MRI over 5 minutes at baseline and 4 weeks after beginning treatment
|
|---|---|---|
|
Overall Study
STARTED
|
0
|
7
|
|
Overall Study
COMPLETED
|
0
|
7
|
|
Overall Study
NOT COMPLETED
|
0
|
0
|
Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
Hyperpolarized 13C Pyruvate MRI for Treatment Response Assessment in Pancreatic Ductal Adenocarcinoma
Baseline characteristics by cohort
| Measure |
Cohort A: Single Dose/Image
Participants receive hyperpolarized carbon C 13 pyruvate intravenously (IV) over less than one minute then undergo MRI over 5 minutes at baseline
|
Cohort B: Multiple Dose/Images
n=7 Participants
Participants receive hyperpolarized carbon C 13 pyruvate IV over less than one minute then undergo MRI over 5 minutes at baseline and 4 weeks after beginning treatment
|
Total
n=7 Participants
Total of all reporting groups
|
|---|---|---|---|
|
Ethnicity (NIH/OMB)
Not Hispanic or Latino
|
0 Participants
n=5 Participants
|
6 Participants
n=7 Participants
|
6 Participants
n=5 Participants
|
|
Ethnicity (NIH/OMB)
Unknown or Not Reported
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Age, Customized
50-59 years old
|
0 Participants
n=5 Participants
|
2 Participants
n=7 Participants
|
2 Participants
n=5 Participants
|
|
Age, Customized
60-69 years old
|
0 Participants
n=5 Participants
|
4 Participants
n=7 Participants
|
4 Participants
n=5 Participants
|
|
Age, Customized
70-79 years old
|
0 Participants
n=5 Participants
|
1 Participants
n=7 Participants
|
1 Participants
n=5 Participants
|
|
Sex: Female, Male
Female
|
0 Participants
n=5 Participants
|
2 Participants
n=7 Participants
|
2 Participants
n=5 Participants
|
|
Sex: Female, Male
Male
|
0 Participants
n=5 Participants
|
5 Participants
n=7 Participants
|
5 Participants
n=5 Participants
|
|
Ethnicity (NIH/OMB)
Hispanic or Latino
|
0 Participants
n=5 Participants
|
1 Participants
n=7 Participants
|
1 Participants
n=5 Participants
|
|
Race (NIH/OMB)
American Indian or Alaska Native
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Race (NIH/OMB)
Asian
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Race (NIH/OMB)
Black or African American
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
|
Race (NIH/OMB)
White
|
0 Participants
n=5 Participants
|
3 Participants
n=7 Participants
|
3 Participants
n=5 Participants
|
|
Race (NIH/OMB)
More than one race
|
0 Participants
n=5 Participants
|
2 Participants
n=7 Participants
|
2 Participants
n=5 Participants
|
|
Race (NIH/OMB)
Unknown or Not Reported
|
0 Participants
n=5 Participants
|
2 Participants
n=7 Participants
|
2 Participants
n=5 Participants
|
|
Region of Enrollment
United States
|
—
|
7 participants
n=7 Participants
|
7 participants
n=5 Participants
|
PRIMARY outcome
Timeframe: BaselinePopulation: No participants were enrolled to Cohort A
Descriptive statistics will be used to summarize the mean, standard deviation, and 95% confidence interval of the measurements.
Outcome measures
Outcome data not reported
PRIMARY outcome
Timeframe: Up to 4 weeksPopulation: Data was not collected for this endpoint
Paired t-test or Wilcoxon signed rank test will be used to compare the target tumor Hyperpolarized (HP) 13C pyruvate metabolism pre- and 4-week (+/- 2 weeks) post treatment initiation.
Outcome measures
Outcome data not reported
SECONDARY outcome
Timeframe: Up to 6 monthsPopulation: No participants were enrolled to Cohort A
ICC will be used to estimate the intra-subject agreement to assess repeatability of tumor HP 13C pyruvate metabolism in patients with same-day repeated dose. ICC will also be used to estimate agreement obtained from a one-way analysis of variance model based on 2 measurements per subject. The result will be presented with a 95% confidence interval
Outcome measures
Outcome data not reported
SECONDARY outcome
Timeframe: Up to 4 weeks after treatment initiationPopulation: Data was not collected for this endpoint
Objective response for patients in Cohort B will be defined using Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 on subsequent clinical CT scans. For the purpose of response assessment in this pilot study, we will group patients either as having disease control when the best response is complete response (CR), partial response (PR), or stable disease (SD) on subsequent clinical CT scans, or having disease progression when the best response is progressive disease (PD) on subsequent CT scans. Comparisons the baseline or changes in the target tumor 13C pyruvate metabolism at 4 weeks (+/-2 weeks) after treatment initiation between the disease control group and disease progression group (as defined by RECIST on subsequent clinical CT scans) will be made using the Mann-Whitney tests.
Outcome measures
Outcome data not reported
Adverse Events
Cohort A: Single Dose/Image
Cohort B: Multiple Dose/Images
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Dr. Zhen Wang, MD
University of California, San Francisco
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place