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DeliriumPhase 3NCT00257868

Rivastigmine for the Prevention of Postoperative Delirium in Patients Undergoing Cardiac Surgery

A Phase 3 study testing Rivastigmine prevention of delirium in people with Delirium, run by University Hospital, Basel, Switzerland at 1 site in Switzerland.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine whether Rivastigmine is effective for the prevention of postoperative delirium in patients undergoing cardiac surgery. Read more about this study

Who is it for?
Ages 65 years and older
Conditions the study is for
Delirium
What is being tested?
Rivastigmine prevention of delirium
How many people
120 participants
Where
1 siteSwitzerland
Study dates
Jan 2006to Jul 2007
Phase
Phase 3
Are there results?
None posted in the registry

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 65 years and older
  • All sexes
  • No healthy volunteers
  • Older adult

Who may be able to join

  • Patients undergoing cardiac surgery with use of extracorporeal circulation
  • Aged 65 or more

Who cannot join

  • "redo" procedures
  • anticipated use of succinylcholine during operation
  • contraindications to rivastigmine
  • preoperative mini mental score < 15

Trial locations and contacts

1 site in 1 country.

Switzerland1 site
  • University Hospital Basel

    Basel, 4031

Other trials in Switzerland

About this study

Official title: Rivastigmine for the Prevention of Postoperative Delirium After Cardiac Surgery

The purpose of this study is to determine whether Rivastigmine is effective for the prevention of postoperative delirium in patients undergoing cardiac surgery.

Read the detailed description

Postoperative delirium is a frequent complication after cardiac surgery. In the literature an incidence ranging from 0 - 72 % is reported. The aetiology of this complication is multifactorial. A decline in cerebral cholinergic transmission as well as perioperative cerebral hypoperfusion or a systemic inflammatory response triggered by the extracorporeal circulation have been suspected. Advanced age is the most important patient-related risk factor. A perioperative delirium is an extremely unpleasant experience for the affected patients. Equally important is the fact that a delirium is associated with a prolonged length of stay on the intensive care unit and in hospital. Furthermore, patients who develop delirium have an increased six-month mortality. Recently successful treatment and prevention of the delirium with cholinesterase inhibitors such as rivastigmine have been reported.

The proposed study will test the hypothesis that prophylactically administered rivastigmine is able to prevent or at least reduce the symptoms of the postoperative delirium in elderly patients undergoing elective cardiac surgery with extracorporeal circulation.

This study is designed as a double blind randomised placebo controlled trial. Half the patients will receive placebo. The other half will receive rivastigmine 1.5m-1.5mg-1.5mg (oral solution), starting on the evening preceding the operation and for the first seven days postoperatively. Patients in both groups who develop delirium will be treated with a rescue medication consisting of lorazepam and haloperidol.

Measurements will include the incidence of delirium assessed using the Confusion Assessment Method (CAM). The severity of symptoms will by characterised by the Mini Mental Score and clock drawing. Further measurements will include the prescribed doses of rescue medication, the length of stay on intensive care and in hospital, the time of extracorporeal circulation, and laboratory parameters such as CRP, albumin, lymphocyte count, vitamin B12 and folic acid levels. Side effects of rivastigmine will be quantified.

The primary endpoint of this study is the incidence of delirium. Secondary endpoints will be the severity of delirium, the used doses of rescue medication, and length of stay (intensive care and hospital).

Conditions
Delirium
Being tested
Rivastigmine prevention of delirium
Medical subject headings
Delirium

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Rivastigmine prevention of deliriumDrug

What is being measured

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

  1. Development of postoperative delirium within 7 days after cardiac surgery

Secondary outcomes (3)
  1. Severity of delirium occurring within 7 days after cardiac surgery

  2. Length of stay (intensive care and hospital)

  3. Amount of drugs used for rescue therapy of delirium

Timeline

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

  1. First posted23 Nov 2005 (estimated)
  2. Study startJan 2006
  3. Study completionJul 2007

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Enrolment
120 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00257868
Sponsor's protocol ID
EKBB 204/05
Other IDs
CENA713CCH01
Status last verified
Jul 2007
First submitted
22 Nov 2005
Last updated
31 Jul 2007
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Rivastigmine prevention of delirium in people with Delirium, run by University Hospital, Basel, Switzerland at 1 site in Switzerland.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 31 Jul 2007. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Switzerland. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Development of postoperative delirium within 7 days after cardiac surgery. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 31 Jul 2007.

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