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Study of Mirtazapine for Agitation in Dementia (SYMBAD)

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ClinicalTrials.gov Identifier: NCT03031184
Recruitment Status : Recruiting
First Posted : January 25, 2017
Last Update Posted : November 28, 2018
Sponsor:
Collaborators:
Norwich Clinical Trials Unit
University of East Anglia
University of Cambridge
University College, London
London School of Economics and Political Science
University of Manchester
University of Newcastle Upon-Tyne
Birmingham and Solihull Mental Health NHS Foundation Trust
Alzheimer's Society
The Centre for Dementia Studies, Brighton and Sussex Medical School and SPFT
Information provided by (Responsible Party):
University of Sussex

Brief Summary:
This clinical trial evaluates whether Mirtazapine is more effective than placebo in treating agitation in people with dementia. The trial will assess the safety, clinical and cost effectiveness of the treatment. Participants will be randomised to receive either Mirtazapine or placebo for 12 weeks and will be followed up for up to one year, in this blinded trial.

Condition or disease Intervention/treatment Phase
Dementia Drug: Mirtazapine Other: Placebo Phase 3

Detailed Description:

Patient-centred care, without the use of medicines is offered as a first course of treatment for agitation in dementia. However, there is a need for second line treatments when these fail, at the moment antipsychotics are commonly prescribed, as very little research has been done in to safer alternative treatments.

There are medicines available to treat agitation and/or aggression in dementia, but it is not clear which treatments work best.

This research study has been designed to help answer this, by comparing a which is currently prescribed for depression, Mirtazapine, with placebo (a tablet designed to look like a medicine but that has no active medicine in it) to see if Mirtazapine is suitable for treating agitation in dementia.

If participants and their family/carers agree to take part in this study, participants will be prescribed treatment for 12 weeks. Participants will then be followed up for 1 year after, with assessment sessions at 26 and 52 weeks.

Participants taking part in this study will be randomly allocated to a treatment group (selected to their treatment group by chance). The study is blinded, so this means the participant's doctor and the research team will not know which treatment the participant has been taking until after the study has ended. This is necessary so that the trial is a fair test of which treatment works best, however it is possible to find out which medicine they are taking in the event of a medical emergency.

The study is entirely voluntary and all participants wishing to join the study must complete an informed consent form (or if they lack capacity the participant's representative may do so on their behalf). Each participant must also have a nominated carer who consents to being questioned on aspects of the participant's dementia/care and their own experiences in caring for the participant.

The investigators are aiming to recruit 222 patients to the study in total from around 20 different regions across the UK.

The study was originally designed to included a second medication, called Carbamazepine, to also look at whether it would work and be safe and cost effective in agitation in dementia. Challenges in recruitment in this population resulted in the funder requesting that the available data was reviewed to July 2018, to see whether one of the arms (Mirtazapine or Carbamazepine) should be discontinued in terms of future recruitment. The independent data monitoring committee compared blinded data from both groups against placebo data and concluded that on the basis of efficacy and safety, the group, which when unblinded was found to be Carbamazepine, should be dropped. Some limited analysis will still be completed for all data collected in the Carbamazepine group, but the trial will continue now only randomising participants to Mirtazapine or placebo.


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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 222 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Pragmatic, Multi Centre, Double-blind, Placebo Controlled Randomised Trial to Assess the Safety, Clinical and Cost Effectiveness of Mirtazapine in Patients With Alzheimer's Disease (AD) and Agitated Behaviours
Study Start Date : January 2017
Estimated Primary Completion Date : January 2020
Estimated Study Completion Date : July 2020

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Dementia
Drug Information available for: Mirtazapine

Arm Intervention/treatment
Experimental: Mirtazapine
15mg of Mirtazapine over encapsulated to produce a blinded product that looks identical to the other arms. Starting dose is one capsule per day, escalating to 2 capsules per day after 2 weeks if no side effects and up to 3 capsules per day after 4 weeks.
Drug: Mirtazapine
Placebo Comparator: Placebo
Lactose powder encapsulated to produce a blinded product that looks identical to the other arms. Starting dose is one capsule per day, escalating to 2 capsules per day after 2 weeks if no side effects and up to 3 capsules per day after 4 weeks.
Other: Placebo
Other Name: Dummy pill




Primary Outcome Measures :
  1. Cohen Mansfield Agitation Inventory (CMAI) score (Long Form, 29 questions) [ Time Frame: Baseline, 6 weeks, 12 weeks ]
    Measured at baseline, 6 and 12 weeks, it is the difference in the score at 12 weeks that is the primary outcome. The questions are asked of the person with dementia's carer



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Patients with a clinical diagnosis of probable or possible Alzheimer's Disease using National Institute of Neurological and Communicative Disorders and Stroke and the Alzheimer's Disease and Related Disorders Association (NINCDS/ADRDA) criteria (McKhann et Al, 1984)
  • a diagnosis of co-existing agitated behaviours
  • evidence that the agitated behaviours have not responded to management according to the AS/DH algorithm (AS/DH, 2011)
  • An assessment of Cohen Mansfield Agitation Inventory (CMAI; Cohen-Mansfield et al, 1989, Long form) score of 45 or greater
  • Written informed consent to enter and be randomised into the trial
  • Availability of a suitable informant (consenting identifiable family carer or paid carer) to provide information on carer-completed outcome measures and who consents to take part in the trial.

Exclusion Criteria:

  • Current treatment with antidepressants (including MAOIs) or antipsychotics. Normal clinical practice should be followed, with an appropriate washout period before trial drug administration. For MAOIs this should be least two weeks.
  • Contraindications to the administration of mirtazapine as per the current SmPC
  • Patients with second degree atrioventricular block (patients with third degree heart block, with a pace maker fitted, may be included at PI discretion)
  • Cases too critical for randomisation (ie where there is a suicide risk or where the patient presents a risk of harm to others)
  • Female subjects under the age of 55 of childbearing potential, defined as follows: postmenopausal females who have not had at least 12 months of spontaneous amenorrhea or 6 months of spontaneous amenorrhoea with serum FSH>40mIU/ml or females who have not had a hysterectomy or bilateral oophorectomy at least 6 weeks prior to enrolment.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03031184


Contacts
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Contact: Sube Banerjee, Professsor 01273678472 S.Banerjee@bsms.ac.uk

Locations
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United Kingdom
Sube Banerjee Recruiting
Brighton, Sussex, United Kingdom, BN1 9RY
Contact: Sube Banerjee, MD    01273877896    s.banerjee@bsms.ac.uk   
Principal Investigator: Naji Tabet, MD         
Principal Investigator: Chris Fox, MD         
Principal Investigator: Alan Thomas, MD         
Principal Investigator: Ross Dunne, MD         
Principal Investigator: Gill Livingston, MD         
Principal Investigator: Peter Bentham, MD         
Principal Investigator: Annabel Price, MD         
Principal Investigator: Ramin Nilforooshan, MD         
Principal Investigator: Carol Bannister, MD         
Principal Investigator: Sushanth Kamath, MD         
Sponsors and Collaborators
University of Sussex
Norwich Clinical Trials Unit
University of East Anglia
University of Cambridge
University College, London
London School of Economics and Political Science
University of Manchester
University of Newcastle Upon-Tyne
Birmingham and Solihull Mental Health NHS Foundation Trust
Alzheimer's Society
The Centre for Dementia Studies, Brighton and Sussex Medical School and SPFT
Investigators
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Principal Investigator: Sube Banerjee, Professor Brighton and Sussex Medical School

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Responsible Party: University of Sussex
ClinicalTrials.gov Identifier: NCT03031184     History of Changes
Other Study ID Numbers: 15/SC/0606
First Posted: January 25, 2017    Key Record Dates
Last Update Posted: November 28, 2018
Last Verified: November 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Undecided
Plan Description: No plans to routinely disseminate this data. The Trial Management Group (and in future, the funder) may consider individual requests made in writing.
Keywords provided by University of Sussex:
Agitation
Agitated behaviours
Alzheimer's Disease
Additional relevant MeSH terms:
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Dementia
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Neurocognitive Disorders
Mental Disorders
Mirtazapine
Antidepressive Agents
Psychotropic Drugs
Histamine H1 Antagonists
Histamine Antagonists
Histamine Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs
Anti-Anxiety Agents
Tranquilizing Agents
Central Nervous System Depressants
Adrenergic alpha-2 Receptor Antagonists
Adrenergic alpha-Antagonists
Adrenergic Antagonists
Adrenergic Agents
Serotonin 5-HT2 Receptor Antagonists
Serotonin Antagonists
Serotonin Agents
Serotonin 5-HT3 Receptor Antagonists