NCT06601673

Brief Summary

The aim of this clinical trial is to test whether daily postoperative cognitive training can prevent delirium in older patients after major surgery. The main questions to be answered is: Can daily cognitive training reduce the rate of postoperative delirium in older patients after surgery? Participants will be visited daily for the first 5 days after surgery and asked to take part in a tablet-based cognitive training programme for 2 hours a day (in 2 sessions). The researchers will compare patients who receive the training with a control group of patients who listen to audio books for the same amount of time and a control group who receive standard care (no intervention).

Trial Health

100
On Track

Trial Health Score

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

Enrollment
108

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started May 2014

Longer than P75 for not_applicable

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 1, 2014

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2018

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2018

Completed
5.8 years until next milestone

First Submitted

Initial submission to the registry

July 30, 2024

Completed
2 months until next milestone

First Posted

Study publicly available on registry

September 19, 2024

Completed
Last Updated

February 21, 2025

Status Verified

February 1, 2025

Enrollment Period

3.8 years

First QC Date

July 30, 2024

Last Update Submit

February 19, 2025

Conditions

Keywords

older patientsfrailtyneurocognitive disordercognitive stimulationanaesthesia

Outcome Measures

Primary Outcomes (1)

  • Postoperative delirium within the first five days after surgery

    Delirium screened twice daily using the 3D-Confusion Assessment Method (3D-CAM) for the first five days after surgery (0-4 hallmarks; hallmark 1+2 and 3+4 = delirium)

    delirium screening twice daily from postoperative day 1-5

Secondary Outcomes (11)

  • postoperative neurocognitive disorder

    postoperative day 7 (1 week after surgery)

  • postoperative neurocognitive disorder

    6 weeks after surgery

  • postoperative neurocognitive disorder

    6 months after surgery

  • Functional state (patient-reported)

    6 weeks after surgery

  • Functional state (measured)

    6 weeks after surgery

  • +6 more secondary outcomes

Study Arms (3)

Intervention

EXPERIMENTAL

Tablet-based bed-side cognitive training for 2h per day for the first five days after surgery (or until discharge from hospital, if earlier).

Behavioral: Cognitive training

Audio book

SHAM COMPARATOR

Listening to an audio book for 2h per day for the first five days after surgery (or until discharge from hospital, if earlier).

Behavioral: Listen to audio book

Standard care

NO INTERVENTION

Standard care without any intervention.

Interventions

The intervention consists of computer-based cognitive training in the areas of attention, processing speed, memory, emotional intelligence, reasoning and orientation. The training takes place under supervision for 120 minutes a day from the first to the fifth postoperative day.

Also known as: cognitive stimulation
Intervention

Here, an audio book is listened to for 2h daily for the first five postoperative days (or until discharge from hospital if earlier). The audio book is brought and set up by study staff.

Audio book

Eligibility Criteria

Age70 Years+
Sexall
Healthy VolunteersNo
Age GroupsOlder Adult (65+)

You may qualify if:

  • Patients aged 70 years or older,
  • planned surgery (abdominal surgery: general surgery, urology or gynaecology; spinal surgery, vascular medicine, cardiothoracic surgery, major trauma surgery),
  • increased perioperative risk (frailty, cognitive impairment, multimorbidity).

You may not qualify if:

  • Unable to give consent,
  • severe cognitive disorder or mental retardation (if training cannot be carried out)
  • Insufficient knowledge of German

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Emergence DeliriumFrailtyNeurocognitive Disorders

Interventions

Cognitive Training

Condition Hierarchy (Ancestors)

DeliriumConfusionNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesPostoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and SymptomsSigns and SymptomsMental Disorders

Intervention Hierarchy (Ancestors)

Neurological RehabilitationRehabilitationAftercareContinuity of Patient CarePatient CareTherapeuticsHealth ServicesHealth Care Facilities Workforce and Services

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: prospective, randomized-controlled trial
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 30, 2024

First Posted

September 19, 2024

Study Start

May 1, 2014

Primary Completion

March 1, 2018

Study Completion

October 1, 2018

Last Updated

February 21, 2025

Record last verified: 2025-02