- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04644783
Novel Blood Test to Predict Safe Foods for Infants and Toddlers With Food Protein-induced Enterocolitis Syndrome (FPIES)
A Novel Blood Test to Predict Safe (Non-trigger) Foods for Infants and Toddlers With Food Protein-induced Enterocolitis Syndrome (FPIES)
The aim of this study is to validate a blood test that can identify safe foods for food protein-induced enterocolitis syndrome (FPIES). This study proposes a solution to the problems of FPIES by developing a new blood assay that screens a large number of foods (more than 20) in a culture plate. If this blood test is successful it may be able to identify safe foods more quickly.
The study will recruit ten participants that will have 2-3 trigger foods as well as ten participants with 4 or more trigger foods.
Study Overview
Status
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Michigan
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Ann Arbor, Michigan, United States, 48109
- University of Michigan
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Diagnosis of FPIES
- Have to have documented reactions to 2-3 trigger foods with recurrent delayed vomiting or documented reactions to 4 or more trigger foods with recurrent delayed vomiting.
Exclusion Criteria:
- Patients who are currently on medications that suppress the immune system
- Patients who do not have at least 2 trigger foods identified.
- Patients who have a history of an organic Gastrointestinal (GI) disease (e.g., inflammatory bowel disease, celiac disease, biliary disorders, bowel resection), cardiac, pulmonary, neurologic, renal, endocrine, or gynecological pathology
- Lack of parental or guardian informed consent.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: DIAGNOSTIC
- Allocation: NA
- Interventional Model: SINGLE_GROUP
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: Blood test with assays
Ten patients with FPIES exhibiting reactions to 2-3 foods, and up to 10 exhibiting FPIES reactions to 4 or more foods will be recruited.
|
Participants will have their blood drawn and be evaluated with a new blood assay that screens a large number of foods (more than 20) in a culture plate.
Participants will be asked to eat the identified safe foods by the the blood assay.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Negative predictive value (NPV), defined as the proportion of test-predicted safe foods that are actually safe foods.
Time Frame: Up to 10 weeks (from first food trial)
|
The study team will build a Receiver operating characteristic (ROC) curve to estimate the NPV. A random-effects logit model will be used to model the binary outcome (safe or trigger food) as a function of the 9 biomarker measurements in the assay. The random effect in the logit model will take into consideration of the correlated data measured within the same subject. A cluster Receiver operating characteristic (ROC) curve analysis will be used to assess the precision of the assay. Specifically, the study team will compute the area under the cluster ROC curve (AUC), along with a 95% confidence interval (CI). The assay is predictive if the lower limit of the 95% CI is above 0.5, which is the null value indicating no predictive ability. Given the assay is predictive, the team will select a threshold to obtain the NPV. |
Up to 10 weeks (from first food trial)
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Positive predictive value (PPV), defined as the proportion of test-predicted unsafe foods that are actually unsafe foods.
Time Frame: Up to 10 weeks (from first food trial)
|
The study team will use the same ROC curve described for the primary outcome to derive the PPV.
|
Up to 10 weeks (from first food trial)
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Mohamad El Zaatari, PhD, University of Michigan
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ANTICIPATED)
Study Completion (ANTICIPATED)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- HUM00156027
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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