- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04484441
Maternal-fetal Immune Responses to Fetal Surgery
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Estimated)
Contacts and Locations
Study Contact
- Name: Maureen A Lemens, BSN
- Phone Number: 507-293-1487
- Email: lemens.maureen@mayo.edu
Study Contact Backup
- Name: Elizabeth Ann L Enninga, PhD
- Phone Number: 507-538-7615
- Email: enninga.elizabethann@mayo.edu
Study Locations
-
-
Minnesota
-
Rochester, Minnesota, United States, 55905
- Mayo Clinic in Rochester, Minnesota
-
-
Ohio
-
Cincinnati, Ohio, United States, 45229
- Cincinnati Children's Hospital Medical Center
-
-
Texas
-
Houston, Texas, United States, 77030
- University of Texas Houston
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria for study group:
- Maternal age ≥18 years
- Pregnant with a congenital anomaly diagnosis AND undergoing fetal intervention in utero
- Delivery planned at Mayo Clinic, Rochester MN
Inclusion Criteria for control group:
- Maternal age ≥18 years
- Pregnant with normal ultrasound findings
- Delivery planned at Mayo Clinic, Rochester MN
Exclusion Criteria:
- Delivery planned elsewhere
- Abnormal fetal karyotype
Study Plan
How is the study designed?
Design Details
- Observational Models: Case-Control
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Fetal surgical intervention group
Pregnant adult women carrying a fetus with a diagnosed congenital anomaly and scheduled to undergo fetal surgical intervention at Mayo Clinic.
|
Collection of maternal and paternal blood.
Collection of infant cord blood and placenta.
|
Control group - normal pregnancy
Pregnant adult women with normal ultrasound findings.
These women will be matched with the subjects enrolled in the intervention cohort for parity, maternal age, ethnicity, fetal sex and gestational age at time of surgical intervention.
|
Collection of maternal and paternal blood.
Collection of infant cord blood and placenta.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Maternal T cell activation following in utero intervention.
Time Frame: Baseline, 1-2 days post intervention, 1 week post intervention, delivery
|
T cells from maternal blood will be isolated and CDR3 spectra typing will be completed. These samples will be compared to each other to identify high frequency T cell clones as well as longitudinal changes in the dynamics of clones. Blood collected at the four time points above will be profiled for changes in immune activation using mass cytometry (CyTOF) and plasma collected to measure changes in cytokine responses pre- and post-surgery by multiplex. |
Baseline, 1-2 days post intervention, 1 week post intervention, delivery
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Placental histology in the maternal-fetal interface in term and preterm fetal intervention cases
Time Frame: Delivery
|
Placental macrophages will be phenotyped for subtypes (M1 classical versus M2 repair), activation (CD25 and CD40), and apoptosis status by CyTOF. Comparisons will be made between those born before 37 weeks and those born after 37 weeks in the surgical group, as well as to those who didn't undergo surgery. From each placenta, 5 sections will be dissected and submitted for histological evaluation of placental villitis. Toxoplasmosis, Other [syphilis, varicella-zoster, parvovirus B19], Rubella, Cytomegalovirus and Herpes (TORCH) infection panels will be completed to distinguish infectious villitis from immune-mediated villitis. |
Delivery
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Mauro Schenone, MD, Mayo Clinic
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
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
Additional Relevant MeSH Terms
Other Study ID Numbers
- 19-011382
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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