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Preterm DeliveryNCT07307365

Evaluation of the Clinical Performance of the PremaSure Kit to Assess Premature Delivery Risk in Symptomatic Pregnant Patients

An observational study of Preterm Delivery, run by Rea Diagnostics SA at 1 site in Switzerland.

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Looking for participants now. Contact the study team or a site below to ask about taking part.

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Official record

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Trial summary

The goal of the study is to determine the clinical performance of the PremaSure kit, more precisely to assess whether the PremaSure kit can be used as a self-test to assess the risk of premature delivery in patients showing symptoms of premature delivery. Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Preterm Delivery
How many people
800 participants
Where
1 siteSwitzerland
Study dates
5 Dec 2025to Mar 2027
How long will I take part?
3 Months
Phase
Observational

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 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Study population: Pregnant patients with symptoms of premature delivery.

Who may be able to join

  • Informed Consent signed by the subject
  • Female patients above 18 years
  • Gestational week from 22w+0 days to 35w+6 days
  • Symptoms of prematurity.

Who cannot join

  • Subject lacking capacity to provide informed consent
  • Enrolment of the project leader, their family members, employees and other dependent persons
  • Patients with ruptured amniotic membranes or blood in their vaginal discharge
  • Patients with vaginal examination in the last 24 hours
  • Previous enrolment in the current study

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Pierre-Emmanuel Thiriet, PhD contact

+41216931345

pierre-emmanuel.thiriet@readiagnostics.com

Switzerland1 site, 1 recruiting
  • Centre Hospitalier Universtaire Vaudois (CHUV)

    Lausanne, Canton of Vaud, 1001

    David Baud, PhD, +41213143953, david.baud@chuv.ch

    Recruiting

Other trials in Switzerland

About this study

The goal of the study is to determine the clinical performance of the PremaSure kit, more precisely to assess whether the PremaSure kit can be used as a self-test to assess the risk of premature delivery in patients showing symptoms of premature delivery. The sensitivity and specificity of the test will be determined using as an outcome the delivery of the patient in the 7/14 days following the test.

The simplified procedure is the following:

  1. Patients are recruited and screened for eligibility criteria
  2. A healthcare professional collects a vaginal swab from the patient
  3. The collected sample is tested on the PremaSure kit
  4. Pregnancy outcome is compared to the PremaSure kit's result
Read the detailed description

Introduction:

Preterm birth is the first cause of death of infants below five years old. One of the key strategies to save preterm babies is to effectively identify women at risk of preterm birth. While current solutions for the assessment of prematurity risk rely on invasive examination performed by medical professional, the PremaSure is intended to be used by lay user, empowering them with a tool to monitor their pregnancy.

Measurement and procedures:

Consenting patient meeting all the inclusion and none of the exclusion critera will be swabbed by a healthcare professional to collect vaginal secretions. A study nurse will perform the test per the test's IFU. Information related to the patient's delivery will be collected after term to evaluate the predictive performance of the PremaSure kit.

Withdrawal and discontinuation:

Participants can withdraw their consent from the study at any time with no consequence for their clinical management. Patients do not have to provide any reason for withdrawing their consent. Patients who wish to withdraw consent for participation in the study, must notify the Principal Investigator by sending an email to or calling the Principal Investigator using the email address/ phone number mentioned in the ICF. Upon receipt of a notification that a patient wishes to withdraw from the study, the Principal Investigator will document the withdrawal in the eCRF and inquire whether the patient consents that already collected data can be kept on record.

Labelling of the device under investigation:

As the IVD device is not commercially available, the labelling shall indicate that the IVD device under investigation is exclusively for use in a performance study. Each device will have a unique identifying number to trace its origin and manufacturing lot.

Accountability of the IVD device:

Upon receipt at the study sites, the kits shall be stored in a secured location and only accessible for team members involved in the study.

Unused, expired or malfunctioning IVD devices shall be returned to the sponsor.

Monitoring plan:

For each of the sub-studies, a separate site initiation visit will be performed after all required approvals are obtained. As part of this visit the staff involved in the study at the study site will be trained on the procedures presented in this protocol. The devices/kits will be shipped to the site after authorization of the study by the Ethics Committee and approval of the required essential documents.

During the study, the monitor will contact and visit the site regularly. The monitor must have access, with reasonable prior notice, to the facilities of the study site and all source documents needed to verify adherence to the protocol as well as the completeness, consistency and accuracy of the data being entered on the eCRFs and other protocol-related documents. Additional checks of the consistency of the source data with the eCRFs will be performed according to the study-specific monitoring plan. The frequency of the monitoring visits will be mainly based on subject recruitment.

The investigator/delegate must ensure that the eCRFs are completed per the eCRF completion guidelines and that all requested subject files (e.g., ICF, medical notes/charts, other documentation verifying the activities conducted at the study) are available for review by the monitor. The required site staff must be available during the monitoring visits and allow necessary time to meet with the monitor to discuss study-related topics and issues.

A close-out visit will be performed for any initiated site.

Data recording:

Electronic Data Capture (EDC) will be used to collect eCRF data. The eCRF, based on RedCap solution, must be completed in a timely manner as per the eCRF completion guidelines.

The principal investigator and delegate site staff member(s) will be trained to enter and edit the data via a secure network, with secure access features (username, password and identification). While entering the data, the principal investigator/delegate will be instantly alerted to data queries by validated programmed checks. Additional review will be performed by the sponsor/monitor on an ongoing basis to check for unexpected patterns in data and for study monitoring. Should discrepant data be detected, a manual query will be issued for clarification of the data. The query will be visible to the principal investigator/delegate via the eCRF. Response/correction by the principal investigator/delegate will be performed directly in the eCRF. All eCRF entered data require must have documented background data which will remain available for the monitor and to health authorities queries and inspections. A complete electronic audit trail will be maintained in the EDC system. The investigator/delegate will approve the data, confirming its accuracy and completion by signing the eCRF electronically (as per US 21 CFR part 11). Data will be stored on secured servers in Switzerland.

Source data verification will be performed by the monitor. In the electronic database the sponsor shall have access to coded data that can be used to monitor patient recruitment and endpoint assessment.

Keywords
Preterm Delivery, Self-test
Medical subject headings
Premature Birth

What is being measured

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

  1. Evaluation of the clinical performance of the PremaSure kit

    On the population of patients who have fully completed the study without experiencing a non-spontaneous delivery up to 14 days after the sample collection, we will determine the sensitivity, specificity, accuracy, positive and negative predictive values (PPV and NPV respectively) of the PremaSure test for the identification of pregnant women at risk of pre-term delivery at 7 and 14 days, respectively

    Measured: From enrollment to the delivery of the patient

Secondary outcomes (2)
  1. Estimation of the clinical performance of the PremaSure kit on sub-group population

    Estimation of sensitivity and specificity, PPV, NPV and prevalence for the risk of pre-term delivery of sub-groups, defined as any combination of the categories derived from the pregnancy information collected in the context of the present study. The statistical study power may not be attained for each subgroup. The aforementioned values will be determined considering as an outcome a delivery at 7 days, 14 days, or at any duration following the test.

    Measured: From enrollment until the delivery of the patient

  2. Estimation of correlation coefficients between the participant pregnancy information and the outcome of the pregnancy

    Measured: From enrollment until delivery of the patient.

Timeline

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

  1. First posted29 Dec 2025
  2. Study start5 Dec 2025
  3. Primary completionMar 2027 (estimated)
  4. Study completionMar 2027 (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
800 participants (estimated)
Target duration
3 Months
IDs, dates and publications
ClinicalTrials.gov ID
NCT07307365
Sponsor's protocol ID
REA-2024-02260
Status last verified
Dec 2025
First submitted
15 Dec 2025
Last updated
29 Dec 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

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