Identification of Microbial DNA in Maternal Plasma After PPROM

NCT ID: NCT04318470

Last Updated: 2023-04-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Total Enrollment

70 participants

Study Classification

OBSERVATIONAL

Study Start Date

2020-02-12

Study Completion Date

2022-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This study evaluates the use of metagenomic next generation sequencing in identifying microbial DNA in plasma samples of patients with preterm premature rupture of membranes.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Although preterm premature rupture of membranes (PPROM) occurs in only 3% of pregnancies, it accounts for 30% of preterm births (PTB) and is associated with serious maternal and neonatal morbidity. An important factor in the underlying pathophysiology of PPROM and subsequent PTB is subclinical infection, which promotes a cascade of events that contribute to synthesis of prostaglandins, release of proinflammatory cytokines, infiltration of neutrophils, and activation of metalloproteases. Over time, enhanced activity of these infectious and inflammatory pathways contributes to the development of spontaneous labor and/or overt intraamniotic infection (IAI). Unfortunately, the majority of patients with PPROM do not manifest signs and symptoms of infection that are detectable by clinical examination, laboratory evaluation, and traditional microdiagnostic tests, and attempting to predict length of latency period and/or timing of delivery remains a clinical challenge. We propose the use of metagenomic next-generation sequencing (mNGS) to identify microbial DNA in maternal plasma following PPROM. We hypothesize that the presence and abundance of microbial DNA is associated with a shorter latency period and that an increase in the abundance of microbial DNA precedes delivery.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Preterm Rupture of Membranes

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

OTHER

Study Time Perspective

PROSPECTIVE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

PPROM

Preterm premature rupture of membranes between 16 0/7 and 33 6/7 weeks gestation

mNGS

Intervention Type DIAGNOSTIC_TEST

Metagenomic next generation sequencing for microbial DNA

Healthy controls

Gestational-age-matched controls without preterm premature rupture of membranes or other pregnancy complications

mNGS

Intervention Type DIAGNOSTIC_TEST

Metagenomic next generation sequencing for microbial DNA

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

mNGS

Metagenomic next generation sequencing for microbial DNA

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* For PPROM group, preterm premature rupture of membranes between 16 0/7 and 33 6/7 weeks of gestation
* For control group, healthy pregnancy with no evidence of preterm premature rupture of membranes or other major complications

Exclusion Criteria

* Maternal age \< 18 years
* Major fetal congenital malformation
Minimum Eligible Age

18 Years

Maximum Eligible Age

55 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

University of California, San Francisco

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Nasim C Sobhani, MD

Role: PRINCIPAL_INVESTIGATOR

University of California, San Francisco

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

University of California, San Francisco

San Francisco, California, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

10-00505-JD

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Perinatal Precision Medicine
NCT03211039 ACTIVE_NOT_RECRUITING NA
Digital vs. Speculum Exams for PPROM
NCT05773014 RECRUITING NA
Motherhood and Microbiome
NCT02030106 COMPLETED