guideSEQ: Genomic Understanding, Impact, Decision & Ethics in Prenatal Sequencing
guideSEQ
2 other identifiers
interventional
1,042
1 country
3
Brief Summary
This study looks at whether genome sequencing should be used more routinely during pregnancy, even when ultrasounds look normal. Genome sequencing can examine nearly all of a baby's genes and may find genetic conditions that standard tests do not detect. Researchers will compare this test with current prenatal testing to see if it provides helpful information for families and doctors. The study will also explore how parents decide what kinds of genetic information they want to receive and how this information affects their experience during pregnancy. The goal is to understand whether genome sequencing can be used in a way that is helpful, responsible, and supportive for families in the future.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Apr 2026
Longer than P75 for not_applicable
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 29, 2026
CompletedFirst Submitted
Initial submission to the registry
May 20, 2026
CompletedFirst Posted
Study publicly available on registry
May 28, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 31, 2029
ExpectedStudy Completion
Last participant's last visit for all outcomes
July 31, 2029
July 15, 2026
May 1, 2026
3.3 years
May 20, 2026
July 14, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Incremental Genomic Frequency
The incremental frequency of fetal genetic conditions identified and reported by genomic sequencing (GS) compared to those found by standard-of-care (SOC) testing, including pathogenic, likely pathogenic, or variant of uncertain significance (VUS) variants identified by sequencing and deemed reportable by the Variant Adjudication Committee
Baseline to 12 months postpartum.
Secondary Outcomes (23)
Frequency and type of pathogenic and likely pathogenic (P/LP) genomic findings by SOC and GS independently
Baseline to 12 months postpartum.
Percent and type of P/LP findings reported
Baseline to 12 months postpartum.
Percent of fetal P/LP findings requiring adjudication
Baseline to 12 months postpartum.
Turnaround time of SOC and GS testing
Baseline to 12 months postpartum.
Frequency of reportable genomic findings in mother
Baseline to 12 months postpartum.
- +18 more secondary outcomes
Interventions
Genome sequencing (GS) is a genetic test that involves reading the genome to identify genetic changes (also known as "genetic variants") that can cause differences in human development and disease.
Eligibility Criteria
You may qualify if:
- Patient planned chorionic villus sampling (CVS) or amniocentesis in the absence of major fetal structural anomalies (minor anomalies are eligible, the HPO (Human Phenotype Ontology) will not be used by the analyst)
- Certified genetic counselor involved in care
You may not qualify if:
- A major structural anomaly
- Maternal or paternal age less than 18 years old
- Parental unwillingness to participate in 1 year of postnatal follow-up
- Language barrier (non-English or Spanish speaking)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (3)
Boston Childrens Hospital
Boston, Massachusetts, 02115, United States
New York Genome Center
New York, New York, 10013, United States
Columbia University Irving Medical Center (CUIMC)
New York, New York, 10032, United States
Study Officials
- PRINCIPAL INVESTIGATOR
Ronald Wapner, MD
Columbia University Irving Medical Center (CUIMC)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- DIAGNOSTIC
- Intervention Model
- SEQUENTIAL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor of Obstetrics and Gynecology; Director of Reproductive Genetics
Study Record Dates
First Submitted
May 20, 2026
First Posted
May 28, 2026
Study Start
April 29, 2026
Primary Completion (Estimated)
July 31, 2029
Study Completion (Estimated)
July 31, 2029
Last Updated
July 15, 2026
Record last verified: 2026-05
Data Sharing
- IPD Sharing
- Will share
- Time Frame
- At the conclusion of the study, the final dataset will be prepared by Columbia and Broad for archiving and sharing.
- Access Criteria
- Raw genomic data (CRAM/VF) and detailed phenotype information will be submitted to the RIFGC. Controlled access to this repository is governed by dbGaP authorization requests and supervised by the consortium. Raw data, when possible, are available through AnVIL. We will also utilize governance and standards including Clinical Laboratory Improvement Amendments, Health Insurance Portability and Accountability Act (HIPAA), Fast Healthcare Interoperability Resources (FHIR) Health Level 7 (HL7), United States Core Data for Interoperability (USCDI), and the National Center for Biotechnology Information (NCBI) MedGen.
In accordance with the NIH Genomic Data Sharing policy, sequencing data and clinical data will be shared with other scientific investigators.