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Preterm PregnancyPREDICTNCT04590677

Prediction of the Onset of Term and Preterm Labour

An observational study of Preterm Pregnancy and Preterm Birth, run by Chelsea and Westminster NHS Foundation Trust at 1 site in United Kingdom.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This study will collect samples from pregnant women in order to identify biomarkers that relate to onset of spontaneous preterm labour. Read more about this study

Who is it for?
Any age, women onlyHealthy volunteers can take part
What is being tested?
Samples required from group 1 (procedure within observational study) and Samples required from group 2 (procedure within observational study)
How many people
200 participants
Where
1 siteUnited Kingdom
Study dates
20 Oct 2020to 1 Sep 2022
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • Women only
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Study population: Pregnant women

Group 1 inclusion criteria

  • Pregnant woman
  • 36 weeks gestational age

Group 1 exclusion criteria

  • Risk factors for preterm birth (previous preterm birth or second trimester loss, cervical suture, previous cervical treatment, previous full dilatation caesarean, transabdominal suture).
  • Planned Caesarean Section
  • Any high-risk pregnancy conditions such as PET (pre-eclamptic toxaemia), OC (Obstetric cholestasis), FGR (fetal growth restriction)
  • Unable to read written English
  • Unable to provide informed consent
  • Poor attendance with antenatal care
  • Uncertain gestational age

Exclusion criteria for subset within group 1 using heart rate monitor

  • Does not have access to an Apple iPhone or iPad with Bluetooth 4.0 (or later) and iOS 10.0 (or later)
  • Skin condition where there is sensitivity to wearing a skin monitor
  • Known heart condition or use of a pacemaker
  • Taking any medications that may affect heart rate

Group 2 inclusion criteria

  • Pregnant woman
  • Presenting at or after 24 weeks gestational age and before 36 weeks / Symptoms of threatened preterm labour (abdominal pain) with fetal fibronectin level ≥ 50 ng/mL and without rupture of membranes
  • In-utero transfer with suspected threatened preterm labour with evidence of cervical shortening and dilatation with or without a fetal fibronectin
  • Rupture of membranes with or without contractions

Group 2 exclusion criteria

  • Any high-risk pregnancy conditions such as PET (pre-eclampsia), OC (Obstetric cholestasis), FGR (fetal growth restriction)
  • Unable to read written English
  • Unable to provide informed consent
  • Poor compliance with antenatal care
  • Uncertain gestational age

Trial locations and contacts

1 site in 1 country.

Research Delivery Operations Manager contact

020 3315 6825

research.development@chewest.nhs.uk

Mark Johnson, MRCOG contact

mark.johnson@chelwest.nhs.uk

United Kingdom1 site, 1 recruiting
  • Chelsea and Westminster Hospital

    London, SW10 9NH

    Research Delivery Operations Manager, research.development@chelwest.nhs.uk

    Natasha Singh, MRCOG

    Recruiting

Other trials in United Kingdom

About this study

Official title: Prediction of the Onset of Term and Preterm Labour (PREDICT)

This study will collect samples from pregnant women in order to identify biomarkers that relate to onset of spontaneous preterm labour.

Read the detailed description

Preterm birth is not a single entity but rather multifactorial The mechanisms underlying preterm birth are multifactorial and include stretch, oxidative stress, inflammation, infection and thrombosis. 85% of women have no identifiable risk factors for preterm birth and there is a requirement to develop a biomarker which can be used early in pregnancy to identify such women at risk. Equally important is to have a detection tool which will allow us to offer an individualised approach to preterm birth prevention and the women to benefit personalised surveillance and timely preventative measures such as cervical cerclage or progesterone.

The aim of this study is to collect samples from pregnant women in order to identify biomarkers that relate to onset of spontaneous preterm labour. We will use maternal blood, urine and vaginal secretion to look for biomarkers in these samples which can be use in the clinical setting to determine which women will go on to give birth preterm. This will allow clinicians to correctly identify these women and initiate treatment in the right woman to prevent preterm labour and birth. Equally important it will reduce unnecessary intervention and admission in those women who are not at risk.

Being tested
Samples required from group 1 (procedure within observational study), Samples required from group 2 (procedure within observational study)
Keywords
Preterm, Biomarker, Pregnancy
Medical subject headings
Premature Birth, Preterm Premature Rupture of the Membranes, Obstetric Labor, Premature

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Samples required from group 1 (procedure within observational study)Other

    • Weekly maternal blood samples to be taken
    • Daily urine samples to be collected
    • One rectal swab at the initial visit only
    • Weekly vaginal swabs
    • Daily Heart rate monitoring (only applicable to a subset of women in group 1)
  • Samples required from group 2 (procedure within observational study)Other

    • Weekly maternal blood samples to be taken
    • Daily urine samples to be collected
    • One rectal swab at the initial visit only
    • Weekly vaginal swabs
Study groups in NCT04590677
Study groupRoleWhat they receive
Group 1Pregnant women at 36 weeks gestational age, who are not expected to have risk factors for preterm birth, n=150.
Receives: Other: Samples required from group 1 (procedure within observational study)
Group 2Pregnant women who have presented with signs and symptoms of threatened preterm labour (e.g. ruptured membranes, contractions, bleeding), at or after 24 weeks gestation, n=50.
Receives: Other: Samples required from group 2 (procedure within observational study)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Relative change in biomarker concentration with respect to gestational age of onset of term and preterm labour

    To use a combination of maternal blood, urine, rectal and vaginal swabs from pregnant to develop a biomarker to allow prediction of women at risk of preterm birth.

    Measured: Group 1 from 36 weeks until delivery (approximately 6 weeks). Group 2 from admission at or beyond 24 weeks gestation until 42 weeks of gestation if not delivered.

Secondary outcomes (2)
  1. Optimal thresholds for each biomarker and estimated associated sensitivity, specificity of each biomarker

    • To determine the temporal relationship between concentration of each biomarker e.g. hCG (IU/L), Progesterone (µg/ml) and onset of labour.
    • For biomarkers that demonstrate a clinically relevant relationship with onset of labour e.g. hCG (IU/L), Progesterone (µg/ml), the clinical utility of the biomarker will be determined.

    Measured: Group 1 from 36 weeks until delivery (approximately 6 weeks). Group 2 from admission at or beyond 24 weeks gestation until 42 weeks of gestation if not delivered.

  2. Correlation between the percentage of patients with reported demographic variables, lifestyle variables and clinical symptoms

    To determine the correlation between the percentage of patients with reported demographic variables, lifestyle variables and clinical symptoms reported through questionnaires and a daily diary and the onset of preterm birth.

    Measured: Group 1 from 36 weeks until delivery (approximately 6 weeks). Group 2 from admission at or beyond 24 weeks gestation until 42 weeks of gestation if not delivered.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Oct 2020
  2. Study start20 Oct 2020
  3. Primary completion1 Sep 2021 (estimated)
  4. Study completion1 Sep 2022 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
200 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04590677
Sponsor's protocol ID
C&W19/037
Acronym
PREDICT
Status last verified
Aug 2021
First submitted
21 Sep 2020
Last updated
9 Aug 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Ngo TTM, Moufarrej MN, Rasmussen MH, Camunas-Soler J, Pan W, Okamoto J, Neff NF, Liu K, Wong RJ, Downes K, Tibshirani R, Shaw GM, Skotte L, Stevenson DK, Biggio JR, Elovitz MA, Melbye M, Quake SR. Noninvasive blood tests for fetal development predict gestational age and preterm delivery. Science. 2018 Jun 8;360(6393):1133-1136. doi: 10.1126/science.aar3819.

    PubMed 29880692
  • Heng YJ, Di Quinzio MK, Permezel M, Rice GE, Georgiou HM. Interleukin-1 receptor antagonist in human cervicovaginal fluid in term pregnancy and labor. Am J Obstet Gynecol. 2008 Dec;199(6):656.e1-7. doi: 10.1016/j.ajog.2008.06.011. Epub 2008 Jul 21.

    PubMed 18640661
  • Heng YJ, Di Quinzio MK, Permezel M, Rice GE, Georgiou HM. Cystatin A protease inhibitor and cysteine proteases in human cervicovaginal fluid in term pregnancy and labor. Am J Obstet Gynecol. 2011 Mar;204(3):254.e1-7. doi: 10.1016/j.ajog.2010.10.912. Epub 2010 Dec 16.

    PubMed 21167469

Questions about this trial

What is this clinical trial studying?

An observational study of Preterm Pregnancy and Preterm Birth, run by Chelsea and Westminster NHS Foundation Trust at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 9 Aug 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Research Delivery Operations Manager (020 3315 6825, research.development@chewest.nhs.uk), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Relative change in biomarker concentration with respect to gestational age of onset of term and preterm labour (time frame: Group 1 from 36 weeks until delivery (approximately 6 weeks). Group 2 from admission at or beyond 24 weeks gestation until 42 weeks of gestation if not delivered.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04590677, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Aug 2021.

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