NCT06716528

Brief Summary

In the present study, a long-term cognitive follow-up of participants of the BioCog cohort (data collection period 2014 - 2019, Ethical vote No: EA2/092/14) from the Berlin study center is to be will be performed in order to record long-term cognitive sequelae (7 to 10 years after study inclusion). In addition to a medical telephone/video visit, the follow-up includes the collection of cognitive tests via web applications and questionnaires of acceptance and usability in the home environment. The study data are analysed in cooperation with the University of Bonn, University Medical Center Schleswig-Holstein and the University of Essen.

Trial Health

57
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
434

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2025

Geographic Reach
1 country

1 active site

Status
recruiting

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 29, 2024

Completed
5 days until next milestone

First Posted

Study publicly available on registry

December 4, 2024

Completed
1 month until next milestone

Study Start

First participant enrolled

January 7, 2025

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2026

Completed
Last Updated

November 21, 2025

Status Verified

November 1, 2025

Enrollment Period

1.2 years

First QC Date

November 29, 2024

Last Update Submit

November 20, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in cognitive performance

    The primary object of research is the explorative investigation of the change in cognitive test performance as well as cognitive self-care and functionality in the long-term follow-up (7 - 10 years) compared to the baseline survey (from the main BioCog study). It is measured with CANTAB Research Suite, CANTAB web-based testing and paper pencil tests.

    Participants will be followed for sequelae at 7-10 years after BioCog study inclusion

Secondary Outcomes (12)

  • Acceptance

    Participants will be followed for sequelae at 7-10 years after BioCog study inclusion

  • Usability

    Participants will be followed for sequelae at 7-10 years after BioCog study inclusion

  • NUcleic acid Linked Immuno-Sandwich Assay Central Nervous System Disease Multiplex Panel

    Participants will be followed for sequelae at 7-10 years after BioCog study inclusion

  • New diagnoses

    Participants will be followed for sequelae at 7-10 years after BioCog study inclusion

  • Actual medication

    Participants will be followed for sequelae at 7-10 years after BioCog study inclusion

  • +7 more secondary outcomes

Study Arms (2)

Former BioCog patients

Former BioCog patients from the Berlin study center who have undergone baseline cognitive testing and from whom plasma samples are available

Former BioCog subjects in the non-surgical comparison cohort

Former BioCog subjects in the non-surgical comparison cohort from the Berlin study center who have undergone baseline cognitive testing

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients and subjects from the Berlin BioCog cohort.

You may qualify if:

  • Patients of Berliner BioCog cohort with cognitive Testing (CANTAB Research Suite) at Baseline and with plasma samples for baseline that can be contacted.
  • Written informed consent for participation in the BioCog-Web study.
  • Data and reserve samples from patients in the Berlin BioCog cohort who can no longer be contacted.

You may not qualify if:

  • None
  • Subjects
  • BioCog subjects of the non-operated comparison cohort from Berlin with cognitive testing (CANTAB Research Suite) at baseline who are contactable
  • None

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Anesthesiology and Intensive Care Medicine (CCM/CVK), Charité - University Medicine Berlin

Berlin, 13355, Germany

RECRUITING

Biospecimen

Retention: SAMPLES WITHOUT DNA

Proteomics is emerging as a vital tool in identifying biomarkers of neurodegenerative disease progression and response to therapy. The NUcleic acid Linked Immuno-Sandwich Assay (NULISA)-Seq™ Central Nervous System Disease Panel 120 provides best-in-class sensitivity and robust, multiplexed analysis of 120 neuro-specific and inflammatory proteins from 10 µl of plasma.

MeSH Terms

Conditions

Cognition Disorders

Condition Hierarchy (Ancestors)

Neurocognitive DisordersMental Disorders

Study Officials

  • Claudia Spies, MD, Prof.

    Charitè - University Berlin

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Claudia Spies, MD, Prof.

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Head of the Department of Anesthesiology and Intensive Care Medicine (CCM/CVK)

Study Record Dates

First Submitted

November 29, 2024

First Posted

December 4, 2024

Study Start

January 7, 2025

Primary Completion

April 1, 2026

Study Completion

April 1, 2026

Last Updated

November 21, 2025

Record last verified: 2025-11

Data Sharing

IPD Sharing
Will not share

Locations