ClinicalTrials.gg
CompletedNCT03629795Updated Aug 14, 2018

Serum Sample Collection to Determine Analytical Performance Characteristics of the ADVIA Centaur PAPPA and BhCG Assays

An observational study in Trisomy 21 in Fetus, Trisomy 18 in Fetus and Trisomy 13 in Fetus, sponsored by Axis Shield Diagnostics Ltd. Completed at 1 site in United Kingdom. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2018-08-14.

Sponsored by Axis Shield Diagnostics Ltd · Observational

Help build ClinicalTrials.gg — short surveys, remote interviews or testing, in your language. Take part →

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
150
Ages
18 Years and older
Sex
Female
01

Where this study stands

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

Among 16 studies in Down Syndrome with a site in United Kingdom — 3 open to participants now, 3 under way, none of them phase 3. Down Syndrome · United Kingdom.

Started
2017
with 1 other
Observational
7 of 16
2 open now
Registered
11th of 16
by date
Lead sponsor
1 of 16
Axis Shield Diagnostics Ltd

Among the 16 studies in Down Syndrome with a site in United Kingdom, this one is one of 2 that started in 2017, is one of 7 observational ones, and was the 11th 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

3 of the 16 studies in Down Syndrome with a site in United Kingdom are open now. Recruiting first, the newest first:

All 3 open studies →

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

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: 18 Years and older · female.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

Was this useful?
Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 16 studies in Down Syndrome with a site in United Kingdom, or all of them as a file.
02

Study summary

Blood samples collected will be shipped to the sponsor's laboratory to establish analytical performance characteristics of the ADVIA Centaur® Pregnancy Associated Plasma Protein A (PAPP-A) and ADVIA Centaur® Free Beta Human Chorionic Gonadotropin (Free βhCG) assays.

Read the detailed description

Blood samples are to be collected from pregnant women attending their scheduled 1st Trimester scan; the samples are to be collected immediately after the subject's routine blood sample at the clinic visit. No extra venepuncture will be required.

Blood samples collected will be shipped to the sponsor's laboratory to establish analytical performance characteristics of the ADVIA Centaur® Pregnancy Associated Plasma Protein A (PAPP-A) and ADVIA Centaur® Free Beta Human Chorionic Gonadotropin (Free βhCG) assays.

03

Conditions studied

  • Trisomy 21 in Fetus
  • Trisomy 18 in Fetus
  • Trisomy 13 in Fetus
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Sampling method
Non-probability sample

Study population

First trimester pregnancy

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

  • A subject is considered eligible for participation in the trial if all of the following inclusion criteria are satisfied prior to enrolment:

    1. Subject is ≥ 18 years of age
    2. Subject is informed and has been given ample time and opportunity to think about her participation and has given her written .
    3. Women with a structurally normal viable pregnancy with a fetal crown rump length of 45-84 mm

Exclusion criteria

Exclusion Criteria:

  • A subject is not eligible for participation in the trial if any of the following exclusion criteria are met prior to enrolment:

    1. Subject is unable to give consent
    2. Subject has already participated in the study
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
150 participants (actual)
Patient registry
No
Biospecimen retention
Samples without dna
06

What researchers measure

Primary outcomes

  1. Sample handling

    Percentage change in PAPPA and BhCG levels from baseline sample type to sample type under test.

    Time frame: 3 months

07

Study locations

1 site
  • Newcastle University
    Newcastle Upon Tyne, UK NE24HH, United Kingdom
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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 Nov 2017 to primary completion in Jan 2018, 2 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 2 months is below that.

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

Registered
Jul 26, 2018
First posted
Aug 14, 2018
StartActual
Nov 17, 2017
Primary completionActual
Jan 24, 2018
CompletionActual
Jan 24, 2018
Last update
Aug 14, 2018
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 14, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03629795
Lead sponsor
Axis Shield Diagnostics Ltd
Collaborators
The Clinical Trial Company
Responsible party
Sponsor
First posted
Aug 14, 2018
Start date
Nov 17, 2017
Primary completion
Jan 24, 2018
Completion
Jan 24, 2018
Last update
Aug 14, 2018

Study contacts

Stephen Robson
principal investigator · Professor of Fetal Medicine

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2018. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion