NCT05140850

Brief Summary

The purpose of this study is to explore the long-term consequences of neuroimaging and perceived cognitive dysfunction in obstetrics posterior reversible encephalopathy syndrome.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
500

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2022

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 9, 2021

Completed
22 days until next milestone

First Posted

Study publicly available on registry

December 1, 2021

Completed
1 month until next milestone

Study Start

First participant enrolled

January 1, 2022

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2023

Completed
Last Updated

December 8, 2021

Status Verified

November 1, 2021

Enrollment Period

1.7 years

First QC Date

November 9, 2021

Last Update Submit

December 7, 2021

Conditions

Outcome Measures

Primary Outcomes (6)

  • neuroimaging examination

    the degree of white matter lesions(0,normal; 1, limited cortical or subcortical white matter oedema; 2, white matter oedema \> cortical oedema, white matter oedema extending into deep white matter; 3, white matter oedema \> cortex oedema, oedema extending to the ventricular surface; 4, the involved regions substantially extend to the ventricular surface and are almost completely confluent; 5, involved regions are fully confluent and continuous, ventricular deformity due to the oedema).The value of fractional anisotropy(FA) in PRES group may higher than non- PRES group, and mean diffusivity (MD) in PRES group may lower than non- PRES group.

    within 10 years after deliver

  • neuro-cognitive test of Mini-mental State Examination

    the scores of Mini-mental State Examination,normal (27-30);mild (21-26); moderate (10-20); severe (0-9).

    within 10 years after deliver

  • neuro-cognitive test of Montreal Cognitive Assessment

    the scores of Montreal Cognitive Assessment,normal (≥26); abnormal (\<26).

    within 10 years after deliver

  • blood pressure and hypertension

    Hypertension: blood pressure ≥140/90 mmHg

    within 10 years after deliver

  • level of lactate dehydrogenase(LDH)

    inflammatory: LDH\>380U/L

    within 10 years after deliver

  • level of LDL in blood

    hyperlipidemia:LDL\>3.12mmol/L

    within 10 years after deliver

Study Arms (2)

PRES group

PE or E with PRES

Biological: neuroimaging examination,neuro-cognitive test,blood pressure,blood sample

non-PRES group

PE or E without PRES

Biological: neuroimaging examination,neuro-cognitive test,blood pressure,blood sample

Interventions

neuroimaging will be perform,neuro-cognitive will be tested,blood pressure will be monitored,blood samples will be tested

PRES groupnon-PRES group

Eligibility Criteria

Age15 Years - 60 Years
Sexfemale
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodProbability Sample
Study Population

We divided the PE or E patients into two groups, namely PRES group and non-PRES group, according to diagnostic criteria . the general information(demographic data,blood pressure.etc.)and blood sample will be collected.

You may qualify if:

  • patients were diagnosed of PE or E
  • patients received cranial image examination
  • patients consent to participate

You may not qualify if:

  • patients combined other neurological diseases
  • patients combined mental illness

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Obstetrics and Gynecology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University

Guangzhou, 510150, China

Location

Biospecimen

Retention: SAMPLES WITHOUT DNA

blood

MeSH Terms

Conditions

Cognitive DysfunctionPosterior Leukoencephalopathy Syndrome

Condition Hierarchy (Ancestors)

Cognition DisordersNeurocognitive DisordersMental DisordersHypertensive EncephalopathyIntracranial HypertensionBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesLeukoencephalopathies

Central Study Contacts

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Target Duration
2 Years
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Director of obstetrics

Study Record Dates

First Submitted

November 9, 2021

First Posted

December 1, 2021

Study Start

January 1, 2022

Primary Completion

October 1, 2023

Study Completion

October 1, 2023

Last Updated

December 8, 2021

Record last verified: 2021-11

Data Sharing

IPD Sharing
Will not share

Locations