Cell-Based Noninvasive Prenatal Testing

Study Overview
=================
Brief Summary
-----------------
The purpose of the overall study is to develop improved methods for recovery and analysis of fetal cells from the mother's blood in order to develop clinically useful forms of cell-based, diagnostic, noninvasive prenatal testing (NIPT). Luna genetics will obtain and analyze research blood samples from healthy pregnant women. A phlebotomist will be sent to any location in the United States to collect the blood samples. Sample identifiers will be removed as the first step so that laboratory personnel will not see or have access to identifiers.

Official Title
-----------------
Improving Methods for Cell-Based Noninvasive Prenatal Testing (NIPT)

Conditions
-----------------
Pregnancy Related

Intervention / Treatment
-----------------
* Diagnostic Test: Redraw for analysis of blood samples from healthy pregnant women


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria for healthy pregnant subjects: Pregnant 18 years or older 65 or younger Exclusion Criteria for healthy pregnant subjects: Acute illness Unavailability of maternal blood sample of at least 30 ml Language barrier (non-English speaking ) Maternal age of less than 18 years, or over 65 Higher order multiple pregnancy (triplet or greater)

Ages Eligible for Study
-----------------
Minimum Age: 18 Years
Maximum Age: 65 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
Accepts Healthy Volunteers

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Diagnostic
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: Analysis of blood samples from healthy pregnant women<br>Analysis of blood samples from healthy pregnant women. A phlebotomist will be sent to any location in the United States to collect the blood sample. Sample identifiers will be removed as the first step so that laboratory personnel will not see or have access to identifiers. No information will go back to patients or their physicians. | Diagnostic Test: Redraw for analysis of blood samples from healthy pregnant women<br>* If less than two fetal cells are recovered from maternal blood, a redraw is indicated<br>|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Number of fetal cells recovered and quality of DNA data on each cell | Outcome 1 is the number of cells identified as fetal by microscopic staining. This can be converted to units based on volume. If 40 mL of blood is collected and f8 cells are designated as fetal based on microscopic staining, the results can be tabulated as follow: So a result is 8 cells are identified as fetal from one blood draw. This equals 0.2 cells identified per mL of maternal blood. If two or fewer cells are obtained, a blood redraw will be requested from the patient. | 3 years | 
| Number of fetal cells recovered and quality of DNA data on each cell | Outcome measure 2 is the number of cells that yield high quality next generation sequencing data suitable for determining copy number across the entire genome. So if 4 of the 8 cells above gave high quality data, the outcome would be 4 cells with high quality copy number data from one blood draw which equals 0.10 high quality cell / mL of mother's b | 3 years | 

 Terms related to the study
=================
Keywords Provided by Centre Hospitalier Valida
-----------------
prenatal, genetic testing, noninvasive, diagnostic