ClinicalTrials.gg
CompletedNCT02109770Microdel TriadUpdated Aug 26, 2019

Development of Non-invasive Prenatal Test for Microdeletion and Other Genetic Syndromes Based on Cell Free DNA

An observational study in Microdeletion Syndromes, Trisomy 21 and Trisomy 18, sponsored by Natera, Inc.. Completed at 2 sites in United States. Per ClinicalTrials.gov, last updated 2019-08-26.

Sponsored by Natera, Inc. · Observational

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Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
216
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 204 studies in Down Syndrome with a site in United States — 47 open to participants now, 55 under way, 4 of them phase 3. Down Syndrome · United States.

Enrollment
44th of 74
216 · median 433
Started
2012
with 7 others
Observational
74 of 204
14 open now
Registered
62nd of 204
by date
Lead sponsor
8 of 204
Natera, Inc.

Among the 204 studies in Down Syndrome with a site in United States, this one is the 44th largest by enrollment of the 74 observational ones that give a count, is one of 8 that started in 2012, is one of 74 observational ones, and was the 62nd registered.

Down Syndrome

438 studies on the registry are indexed under Down Syndrome; 99 are open to participants now.

Browse Down Syndrome studies →

Open to participants now

47 of the 204 studies in Down Syndrome with a site in United States are open now. Recruiting first, the newest first:

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All 47 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 75 Down Syndrome studies recruiting now, 14 (19%) set no upper age limit and 58 (77%) stop at 75 or younger; 61 take children under 18; 19 take healthy volunteers.

This study: all sexes · no healthy volunteers.

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02

Study summary

The purpose of this study is to collect blood from families with a child who has been diagnosed with a chromosomal disorder including microdeletions in order to further develop a non-invasive prenatal screening test based on fetal DNA isolated from maternal blood.

Read the detailed description

The primary purpose of this study is to collect family triads from families affected by a genetic or microdeletion/duplication (MD/D) syndrome to further develop non-invasive prenatal testing based on fetal DNA isolated from maternal blood. To assist with the development of the test, we will need to collect blood samples from women whose child was diagnosed with a genetic or MD/D syndrome, a blood sample from that child as well as a blood sample from their confirmed unaffected siblings. Since the test is based on Natera's Parental Support™ technology, buccal or blood samples from the biological fathers will also be requested.

A recent abstract from a five year study on prenatal microarray testing revealed that 1.6% of women who present for routine prenatal indications have a positive microarray test. With the frequency of microdeletions and microduplications (MD/D) now known to be higher than previously thought, the field is likely to move toward offering invasive testing for microarray abnormalities to all pregnant women. Although non-invasive prenatal testing for aneuploidy is now clinically available, it has become clear that non-invasive prenatal testing for MD/D is equally important. However, access to these samples is made difficult as the standard of care for offering microarray analysis to all pregnant women will take time to come to fruition. We would like to develop this non-invasive as the standard of care so that less women will have to undergo invasive testing for the diagnosis of microarray abnormalities. Thus, there is an unmet need for the development of novel tests that would increase the scope of non-invasive prenatal screening.

03

Conditions studied

  • Microdeletion Syndromes
  • Trisomy 21
  • Trisomy 18
  • Trisomy 13
  • Sex Chromosome Abnormalities

Keywords

  • 22q
  • DiGeorge
  • Angelman
  • Cri du chat
  • Miller Dieker
  • 1p36
  • Phelan McDermid
  • Prader Willi
  • Wolf Hirschorn
  • Smith Magenis
  • Trisomy 21
  • Down syndrome
  • Trisomy 18
  • Edwards syndrome
  • Trisomy 13
  • Patau syndrome
  • Monosomy X
  • Turner syndrome
  • XXY
  • Klinefelter syndrome
  • XXX
  • XYY
04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Families with a child affected by a chromosomal abnormality.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Couples who have a child diagnosed with an autosomal chromosome abnormality (e.g. Down syndrome, Edwards syndrome, Patau syndrome).
  • Couples who have a child diagnosed with a sex chromosome abnormality (e.g. Turner syndrome, Klinefelter syndrome, Triple X syndrome, 47, XYY).
  • Couples who have a child diagnosed with a microdeletion/duplication syndrome (a positive microarray test).

Exclusion criteria

Exclusion criteria:

  • Not an English language or Spanish language speaker
  • Genetics report is not available
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
216 participants (actual)
Patient registry
No
Biospecimen retention
Samples with dna

Groups and cohorts

  • Mother child diads or triads

    Families with child affected by genetic anomaly, microdeletion, microduplication, or chromosomal anomaly

06

What researchers measure

Primary outcomes

  1. Sensitivity and Specificity of the test to diagnose chromosomal microdeletions and aneuploidy in a fetus

    Time frame: 4 years

07

Study locations

2 sites
  • Natera
    San Carlos, California 94070, United States
  • Children's Hospital Of Philadelphia
    Philadelphia, Pennsylvania 19104, United States
08

References and documents

Publications

  • Wapner RJ, Babiarz JE, Levy B, Stosic M, Zimmermann B, Sigurjonsson S, Wayham N, Ryan A, Banjevic M, Lacroute P, Hu J, Hall MP, Demko Z, Siddiqui A, Rabinowitz M, Gross SJ, Hill M, Benn P. Expanding the scope of noninvasive prenatal testing: detection of fetal microdeletion syndromes. Am J Obstet Gynecol. 2015 Mar;212(3):332.e1-9. doi: 10.1016/j.ajog.2014.11.041. Epub 2014 Dec 2. PubMed 25479548 ↗
09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Oct 2012 to primary completion in Jun 2019, 80 months.

Of 55 observational studies under Down Syndrome, half reached primary completion within 34 months of starting (the median), counting those still running; a quarter within 19 and three quarters within 80. This study's 80 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 8, 2014
First posted
Apr 10, 2014
StartActual
Oct 2012
Primary completionActual
Jun 2019
CompletionActual
Aug 2019
Last update
Aug 26, 2019
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 26, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02109770
Lead sponsor
Natera, Inc.
Responsible party
Sponsor
First posted
Apr 10, 2014
Start date
Oct 2012
Primary completion
Jun 2019
Completion
Aug 2019
Last update
Aug 26, 2019

Study contacts

Kim Martin, MD
principal investigator · Natera, Inc.

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2019. You cannot join it, but the record below documents what was studied.

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Discussion

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