A New Prenatal Blood Test for Down Syndrome
RNA
The RNA (RNA-Based Noninvasive Aneuploidy) Study
1 other identifier
observational
4,664
10 countries
27
Brief Summary
The study will examine the sensitivity and specificity of a circulating cell-free nucleic acid test (DNA/RNA) to identify Down syndrome between about 10 weeks and 21 weeks 6 days gestation. In addition, the new test may be used to identify trisomy 13 and 18 as part of a more complete laboratory developed test. We hypothesize that the new circulating cell-free fetal NA-based test will accurately and precisely measure specific fetal markers in maternal circulation and that measurement will lead to the ability to noninvasively identify with high sensitivity and specificity, fetal chromosome abnormalities, such as Down syndrome.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Feb 2009
Typical duration for all trials
27 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 1, 2009
CompletedFirst Submitted
Initial submission to the registry
April 6, 2009
CompletedFirst Posted
Study publicly available on registry
April 7, 2009
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2011
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2011
CompletedJune 3, 2015
June 1, 2015
1.9 years
April 6, 2009
June 1, 2015
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
The RNA study is an observational trial whose primary aim is to document the performance (sensitivity and specificity) of a laboratory developed test (LDT), using fetal nucleic acid in maternal plasma to identify Down syndrome in early pregnancy.
Within 1st and 2nd trimesters
Secondary Outcomes (1)
The secondary aim is to develop a sample bank to allow documentation of subsequent improvements in the existing LDT or documenting performance of new methodologies.
Late1st and early 2nd trimesters
Study Arms (1)
Down syndrome
Women having CVS or amniocentesis who, as a group, have a high prevalence of Down syndrome.
Eligibility Criteria
Pregnant women between about 10 weeks and 21 weeks 6 days gestation who are undergoing a diagnostic procedure (i.e., chorionic villus sampling or amniocentesis) for karyotype analysis.
You may qualify if:
- Pregnant women between about 10 weeks and 21 weeks 6 days gestation who are undergoing a diagnostic procedure (i.e., chorionic villus sampling or amniocentesis) for karyotype analysis who have, on average, a high prevalence of Down syndrome (about 1:30 to 1:50).
- Three main sources are pregnancies screen positive for:
- the combined test at 10 to 13 weeks (NT, PAPP-A and hCG)
- the second trimester quadruple test at 15 to 18 weeks gestation
- integrated screening (PAPP-A and the quadruple test, with or without NT).
- Variations of the integrated test such as sequential testing will also be acceptable.
- Other, less common high risk groups would be women having diagnostic testing because of maternal age of 38 years or older at delivery, pregnancies with an abnormal ultrasound highly suggestive of a chromosome abnormality (e.g., major heart defect, clenched fist), and women with an inherited form of Down syndrome (Robertsonian translocation).
You may not qualify if:
- Nonpregnant women and women at relatively low risk for a Down syndrome baby.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Women and Infants Hospital of Rhode Islandlead
- Sequenom, Inc.collaborator
Study Sites (27)
University of Alabama at Birmingham
Birmingham, Alabama, 35233, United States
Cedars-Sinai Medical Center
Los Angeles, California, 90048, United States
Yale University School of Medicine
New Haven, Connecticut, 06520, United States
Northwestern University, FSM
Chicago, Illinois, 60611, United States
University of Iowa Hospitals and Clinics
Iowa City, Iowa, 52242, United States
Brigham and Women's Hospital
Boston, Massachusetts, 02115, United States
Henry Ford Hospital
Detroit, Michigan, 48202, United States
New Beginnings Perinatal Consultants
Providence, Rhode Island, 02905, United States
Women and Infants Hospital
Providence, Rhode Island, 02905, United States
Baylor College of Medicine
Houston, Texas, 77021-2024, United States
Intermountain Health Care
Murray, Utah, 84107-5701, United States
UVA Medical Center
Charlottesville, Virginia, 22908, United States
Center for Medical Education and Clinical Investiagtion
Buenos Aires, 1431, Argentina
Sociedad Italiana de Beneficencia en Buenos Aires - Hospital Italiano
Buenos Aires, C1181ACH, Argentina
University of Sydney
St Leonards, New South Wales, 2065, Australia
University of Calgary
Calgary, Alberta, T2N 4N1, Canada
Children's and Women's Hospital
Vancouver, British Columbia, Canada
IWK Health Centre
Halifax, Nova Scotia, B3K 6R8, Canada
North York General Hospital
Toronto, Ontario, M2K 1E1, Canada
Imalab
Zlín, Zlín, 76001, Czechia
Centrum lekarske genetiky s.r.o.
České Budějovice, 370 01, Czechia
Semmelweis University
Budapest, Hungary
Pecs University
Pécs, 17, Hungary
Rotunda Hospital
Dublin, Ireland
Rambam Medical Center
Haifa, 31096, Israel
U.O. Ostetricia e Ginecologia Laboratorio Sperimentale di Tecniche
Genova, 16147, Italy
Hospital Clinic Barcelona - Maternitat Campus
Barcelona, Catalonia, 08020, Spain
Related Publications (9)
Palomaki GE, Deciu C, Kloza EM, Lambert-Messerlian GM, Haddow JE, Neveux LM, Ehrich M, van den Boom D, Bombard AT, Grody WW, Nelson SF, Canick JA. DNA sequencing of maternal plasma reliably identifies trisomy 18 and trisomy 13 as well as Down syndrome: an international collaborative study. Genet Med. 2012 Mar;14(3):296-305. doi: 10.1038/gim.2011.73. Epub 2012 Feb 2.
PMID: 22281937RESULTCanick JA, Kloza EM, Lambert-Messerlian GM, Haddow JE, Ehrich M, van den Boom D, Bombard AT, Deciu C, Palomaki GE. DNA sequencing of maternal plasma to identify Down syndrome and other trisomies in multiple gestations. Prenat Diagn. 2012 Aug;32(8):730-4. doi: 10.1002/pd.3892. Epub 2012 May 14.
PMID: 22585317RESULTPalomaki GE, Kloza EM, Lambert-Messerlian GM, van den Boom D, Ehrich M, Deciu C, Bombard AT, Haddow JE. Circulating cell free DNA testing: are some test failures informative? Prenat Diagn. 2015 Mar;35(3):289-93. doi: 10.1002/pd.4541. Epub 2015 Jan 8.
PMID: 25449554RESULTLambert-Messerlian G, Kloza EM, Williams J 3rd, Loucky J, O'Brien B, Wilkins-Haug L, Mahoney MJ, De Biasio P, Borrell A, Ehrich M, van den Boom D, Bombard AT, Deciu C, Palomaki GE. Maternal plasma DNA testing for aneuploidy in pregnancies achieved by assisted reproductive technologies. Genet Med. 2014 May;16(5):419-22. doi: 10.1038/gim.2013.149. Epub 2013 Oct 3.
PMID: 24091801RESULTMazloom AR, Dzakula Z, Oeth P, Wang H, Jensen T, Tynan J, McCullough R, Saldivar JS, Ehrich M, van den Boom D, Bombard AT, Maeder M, McLennan G, Meschino W, Palomaki GE, Canick JA, Deciu C. Noninvasive prenatal detection of sex chromosomal aneuploidies by sequencing circulating cell-free DNA from maternal plasma. Prenat Diagn. 2013 Jun;33(6):591-7. doi: 10.1002/pd.4127.
PMID: 23592550RESULTCanick JA, Palomaki GE, Kloza EM, Lambert-Messerlian GM, Haddow JE. The impact of maternal plasma DNA fetal fraction on next generation sequencing tests for common fetal aneuploidies. Prenat Diagn. 2013 Jul;33(7):667-74. doi: 10.1002/pd.4126. Epub 2013 May 31.
PMID: 23592541RESULTPalomaki GE, Kloza EM, Lambert-Messerlian GM, Haddow JE, Neveux LM, Ehrich M, van den Boom D, Bombard AT, Deciu C, Grody WW, Nelson SF, Canick JA. DNA sequencing of maternal plasma to detect Down syndrome: an international clinical validation study. Genet Med. 2011 Nov;13(11):913-20. doi: 10.1097/GIM.0b013e3182368a0e.
PMID: 22005709RESULTPalomaki GE, Ashwood ER, Best RG, Lambert-Messerlian G, Knight GJ. Is maternal plasma DNA testing impacting serum-based screening for aneuploidy in the United States? Genet Med. 2015 Nov;17(11):897-900. doi: 10.1038/gim.2015.39. Epub 2015 Apr 2.
PMID: 25834952DERIVEDKloza EM, Haddow PK, Halliday JV, O'Brien BM, Lambert-Messerlian GM, Palomaki GE. Evaluation of patient education materials: the example of circulating cell free DNA testing for aneuploidy. J Genet Couns. 2015 Apr;24(2):259-66. doi: 10.1007/s10897-014-9758-8. Epub 2014 Sep 10.
PMID: 25204423DERIVED
Biospecimen
Fetal RNA and DNA in maternal plasma
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Barbara O'Brien, MD
Women and Infants Hospital
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- CROSS SECTIONAL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Prinicpal Investigator
Study Record Dates
First Submitted
April 6, 2009
First Posted
April 7, 2009
Study Start
February 1, 2009
Primary Completion
January 1, 2011
Study Completion
May 1, 2011
Last Updated
June 3, 2015
Record last verified: 2015-06