Neuroleptics in the treatment of aggressive challenging behaviour for people with intellectual

92 Pages·2009·0.69 MB·English

by  Tyrer P

Health Technology Assessment 2009; Vol. 13: No. 21
Neuroleptics in the treatment of aggressive
challenging behaviour for people with
intellectual disabilities: a randomised
controlled trial (NACHBID)
P Tyrer, P Oliver-Africano, R Romeo, M Knapp,
S Dickens, N Bouras, Z Ahmed, S Cooray,
S Deb, D Murphy, M Hare, M Meade,
B Reece, K Kramo, S Bhaumik, D Harley,
A Regan, D Thomas, B Rao, S Karatela,
L Lenôtre, J Watson, A Soni, M Crawford,
J Eliahoo and B North
April 2009
DOI: 10.3310/hta13210
Health Technology Assessment
NIHR HTA programme
www.hta.ac.uk
HTA
How to obtain copies of this and other HTA programme reports.
An electronic version of this publication, in Adobe Acrobat format, is available for downloading free of
charge for personal use from the HTA website (www.hta.ac.uk). A fully searchable CD-ROM is also
available (see below).
Printed copies of HTA monographs cost £20 each (post and packing free in the UK) to both public and
private sector purchasers from our Despatch Agents.
Non-UK purchasers will have to pay a small fee for post and packing. For European countries the cost is
£2 per monograph and for the rest of the world £3 per monograph.
You can order HTA monographs from our Despatch Agents:
– fax (with credit card or official purchase order)
– post (with credit card or official purchase order or cheque)
– phone during office hours (credit card only).
Additionally the HTA website allows you either to pay securely by credit card or to print out your
order and then post or fax it.
Contact details are as follows:
HTA Despatch Email: [email protected]
c/o Direct Mail Works Ltd Tel: [phone]
4 Oakwood Business Centre Fax: [phone]
Downley, HAVANT PO9 2NP, UK Fax from outside the UK: [phone]
NHS libraries can subscribe free of charge. Public libraries can subscribe at a very reduced cost of
£100 for each volume (normally comprising 30–40 titles). The commercial subscription rate is £300
per volume. Please see our website for details. Subscriptions can be purchased only for the current or
forthcoming volume.
Payment methods
Paying by cheque
If you pay by cheque, the cheque must be in pounds sterling, made payable to Direct Mail Works Ltd
and drawn on a bank with a UK address.
Paying by credit card
The following cards are accepted by phone, fax, post or via the website ordering pages: Delta, Eurocard,
Mastercard, Solo, Switch and Visa. We advise against sending credit card details in a plain email.
Paying by official purchase order
You can post or fax these, but they must be from public bodies (i.e. NHS or universities) within the UK.
We cannot at present accept purchase orders from commercial companies or from outside the UK.
How do I get a copy of HTA on CD?
Please use the form on the HTA website (www.hta.ac.uk/htacd.htm). Or contact Direct Mail Works (see
contact details above) by email, post, fax or phone. HTA on CD is currently free of charge worldwide.
The website also provides information about the HTA programme and lists the membership of the various
committees.
Neuroleptics in the treatment of aggressive
challenging behaviour for people with intellectual
disabilities: a randomised controlled trial (NACHBID)
P Tyrer,1* P Oliver-Africano,1 R Romeo,2 M Knapp,2
S Dickens,1 N Bouras,3 Z Ahmed,4 S Cooray,5
S Deb,6 D Murphy,7 M Hare,4 M Meade,1
B Reece,1 K Kramo,1 S Bhaumik,8 D Harley,9 A Regan,10
D Thomas,11 B Rao,1 S Karatela,9 L Lenôtre,5 J Watson,8
A Soni,12 M Crawford,1 J Eliahoo13 and B North13
1Department of Psychological Medicine, Imperial College, London, UK
2Centre for Economics of Mental Health, Box P024, Institute of Psychiatry, De Crespigny Park, London, UK
3Mental Health in Learning Disabilities Centre, King’s College London, Institute of Psychiatry, Estia Centre,
Guy’s Hospital, London, UK
4Welsh Centre for Learning Disabilities Clinical Studies, University of Wales College of Medicine, Cardiff, UK
5Central North West London Foundation NHS Trust, Kingsbury Community Unit, Brent, London, UK
6Department of Psychiatry, University of Birmingham, Queen Elizabeth Psychiatric Hospital, Birmingham, UK
7Section of Brain Maturation, Institute of Psychiatry, London, UK
8Leicestershire Partnership NHS Trust, Leicester Frith Hospital, Leicester, UK
9Queensland Centre for Intellectual and Developmental Disability (QCIDD), School of Population Health,
University of Queensland, Brisbane, Australia
10Harrow Primary Care NHS Trust, Orme Lodge, Stanmore, Middlesex, UK
11North East London Mental Health NHS Trust, Redbridge Learning Disability Service, Barkingside,
Essex, UK
12West London Mental Health NHS Trust, Hammersmith & Fulham Mental Health Unit, London, UK
13Statistical Advisory Service, Imperial College, London, UK
*Corresponding author
Declared competing interests of authors: Nick Bouras has received support from various pharmaceutical companies,
including Janssen-Cilag, for conferences; Sherva Cooray has received support from various pharmaceutical companies,
including Janssen-Cilag, for conferences; Shoumitro Deb is the author of a good practice guide for challenging behaviour
(DATABID QRG); Martin Knapp has received support from many research bodies and commercial organisations,
including various pharmaceutical companies (also including Janssen-Cilag) in the past; Declan Murphy has had honoraria
from Janssen-Cilag in the past and was a Research Fellow on a project funded by Janssen-Cilag from 1986 to 1988.
Published April 2009
DOI: 10.3310/hta13210
This report should be referenced as follows:
Tyrer P, Oliver-Africano P, Romeo R, Knapp M, Dickens S, Bouras N et al. Neuroleptics in the treatment
of aggressive challenging behaviour for people with intellectual disabilities: a randomised controlled trial
(NACHBID). Health Technol Assess 2009; 13(21).
Health Technology Assessment is indexed and abstracted in Index Medicus/MEDLINE, Excerpta Medica/
EMBASE, Science Citation Expanded (SciSearch) and Current Contents/Clinical Medicine.
NIHR Health Technology Assessment programme
The Health Technology Assessment (HTA) programme, part of the National Institute for Health
Research (NIHR), was set up in 1993. It produces high-quality research information on the
effectiveness, costs and broader impact of health technologies for those who use, manage and provide care
in the NHS. ‘Health technologies’ are broadly defined as all interventions used to promote health, prevent
and treat disease, and improve rehabilitation and long-term care.
The research findings from the HTA programme directly influence decision-making bodies such as the
National Institute for Health and Clinical Excellence (NICE) and the National Screening Committee
(NSC). HTA findings also help to improve the quality of clinical practice in the NHS indirectly in that they
form a key component of the ‘National Knowledge Service’.
The HTA programme is needs led in that it fills gaps in the evidence needed by the NHS. There are three
routes to the start of projects.
First is the commissioned route. Suggestions for research are actively sought from people working in the
NHS, from the public and consumer groups and from professional bodies such as royal colleges and NHS
trusts. These suggestions are carefully prioritised by panels of independent experts (including NHS service
users). The HTA programme then commissions the research by competitive tender.
Second, the HTA programme provides grants for clinical trials for researchers who identify research
questions. These are assessed for importance to patients and the NHS, and scientific rigour.
Third, through its Technology Assessment Report (TAR) call-off contract, the HTA programme
commissions bespoke reports, principally for NICE, but also for other policy-makers. TARs bring together
evidence on the value of specific technologies.
Some HTA research projects, including TARs, may take only months, others need several years. They
can cost from as little as £40,000 to over £1 million, and may involve synthesising existing evidence,
undertaking a trial, or other research collecting new data to answer a research problem.
The final reports from HTA projects are peer reviewed by a number of independent expert referees before
publication in the widely read journal series Health Technology Assessment.
Criteria for inclusion in the HTA journal series
Reports are published in the HTA journal series if (1) they have resulted from work for the HTA
programme, and (2) they are of a sufficiently high scientific quality as assessed by the referees and
editors.
Reviews in Health Technology Assessment are termed ‘systematic’ when the account of the search, appraisal
and synthesis methods (to minimise biases and random errors) would, in theory, permit the replication
of the review by others.
The research reported in this issue of the journal was commissioned by the HTA programme as project
number 01/07/02. The contractual start date was in August 2002. The draft report began editorial
review in April 2008 and was accepted for publication in October 2008. As the funder, by devising a
commissioning brief, the HTA programme specified the research question and study design. The authors
have been wholly responsible for all data collection, analysis and interpretation, and for writing up their
work. The HTA editors and publisher have tried to ensure the accuracy of the authors’ report and would
like to thank the referees for their constructive comments on the draft document. However, they do not
accept liability for damages or losses arising from material published in this report.
The views expressed in this publication are those of the authors and not necessarily those of the HTA
programme or the Department of Health.
Editor-in-Chief: Professor Tom Walley CBE
Series Editors: Dr Aileen Clarke, Dr Chris Hyde, Dr John Powell,
Dr Rob Riemsma and Professor Ken Stein
ISSN 1366-5278
© 2009 Queen’s Printer and Controller of HMSO
This monograph may be freely reproduced for the purposes of private research and study and may be included in professional journals provided
that suitable acknowledgement is made and the reproduction is not associated with any form of advertising.
Applications for commercial reproduction should be addressed to: NETSCC, Health Technology Assessment, Alpha House, University of
Southampton Science Park, Southampton SO16 7NS, UK.
Published by Prepress Projects Ltd, Perth, Scotland (www.prepress-projects.co.uk), on behalf of NETSCC, HTA.
Printed on acid-free paper in the UK by Henry Ling Ltd, The Dorset Press, Dorchester. G
DOI: 10.3310/hta13210 Health Technology Assessment 2009; Vol. 13: No. 21
Abstract
Neuroleptics in the treatment of aggressive challenging
behaviour for people with intellectual disabilities: a
randomised controlled trial (NACHBID)
P Tyrer,1* P Oliver-Africano,1 R Romeo,2 M Knapp,2 S Dickens,1
N Bouras,3 Z Ahmed,4 S Cooray,5 S Deb,6 D Murphy,7 M Hare,4
M Meade,1 B Reece,1 K Kramo,1 S Bhaumik,8 D Harley,9 A Regan,10
D Thomas,11 B Rao,1 S Karatela,9 L Lenôtre,5 J Watson,8 A Soni,12
M Crawford,1 J Eliahoo13 and B North13
1Department of Psychological Medicine, Imperial College, London, UK
2Centre for Economics of Mental Health, Box P024, Institute of Psychiatry, De Crespigny Park,
London, UK
3Mental Health in Learning Disabilities Centre, King’s College London, Institute of Psychiatry, Estia
Centre, Guy’s Hospital, London, UK
4Welsh Centre for Learning Disabilities Clinical Studies, University of Wales College of Medicine,
Cardiff, UK
5Central North West London Foundation NHS Trust, Kingsbury Community Unit, Brent, London, UK
6Department of Psychiatry, University of Birmingham, Queen Elizabeth Psychiatric Hospital,
Birmingham, UK
7Section of Brain Maturation, Institute of Psychiatry, London, UK
8Leicestershire Partnership NHS Trust, Leicester Frith Hospital, Leicester, UK
9Queensland Centre for Intellectual and Developmental Disability (QCIDD), School of Population
Health, University of Queensland, Brisbane, Australia
10Harrow Primary Care NHS Trust, Orme Lodge, Stanmore, Middlesex, UK
11North East London Mental Health NHS Trust, Redbridge Learning Disability Service, Barkingside,
Essex, UK
12West London Mental Health NHS Trust, Hammersmith & Fulham Mental Health Unit, London, UK
13Statistical Advisory Service, Imperial College, London, UK
*Corresponding author
aggression were also carried out with key workers at
weekly intervals throughout the trial.
Objective(s): To assess the effects and cost- Setting: Patients were recruited from all those being
effectiveness of haloperidol, risperidone and placebo treated by intellectual disability services in eight sites in
on aggressive challenging behaviour in adults with England, one in Wales and one in Queensland, Australia.
intellectual disability. Participants: Patients from all severity levels of
Design: A double-blind randomised controlled trial of intellectual disability; recruitment was extended
two drugs and placebo administered in flexible dosage, to include those who may have been treated with
with full, independent assessments of aggressive and neuroleptic drugs in the past. Exclusion criteria:
aberrant behaviour, global improvement, carer burden, treatment with depot neuroleptics/another form
quality of life and adverse drug effects at baseline, 4, of injected neuroleptic medication within the last 3
12 and 26 weeks, and comparison of total care costs months; continuous oral neuroleptic medication within
in the 6 months before and after randomisation. At 12 the last week; those under a section of the Mental
weeks, patients were given the option of leaving the trial Health Act 1983 or Queensland Mental Health Act
or continuing until 26 weeks. Assessments of observed 2000.
iii
© 2009 Queen’s Printer and Controller of HMSO. All rights reserved.
Abstract
Interventions: Randomisation to treatment with drugs) (p = 0.06). Placebo-treated patients showed no
haloperidol (a typical neuroleptic drug), risperidone (an evidence of inferior response in comparison to patients
atypical neuroleptic drug) or placebo using a permuted receiving neuroleptic drugs. An additional study found
blocks procedure. Dosages were: haloperidol 1.25– that clinicians who had not participated in clinical trials
5.0 mg daily; risperidone 0.5–2.0 mg daily. before were less likely to recruit. Mean total cost of
Main outcome measures: Primary: reduction in accommodation, services, informal care and treatment
aggressive episodes between baseline and 4 weeks over the 6 months of the trial was £16,336 for placebo,
using Modified Overt Aggression Scale. Secondary: £17,626 for haloperidol and £18,954 for risperidone.
Aberrant Behaviour Checklist; Uplift/Burden Scale; 40- Conclusions: There were no significant important
item Quality of Life Questionnaire; Udvalg for Kliniske benefits conferred by treatment with risperidone
Undersøgelser scale; Clinical Global Impressions scale. or haloperidol, and treatment with these drugs was
Economic costs recorded using a modified version of not cost-effective. While neuroleptic drugs may be
Client Service Receipt Inventory for 6 months before of value in the treatment of aggressive behaviour in
and after randomisation. some patients with intellectual disability, the underlying
Results: There were considerable difficulties in pathology needs to be evaluated before these are given.
recruitment because of ethical and consent doubts. The specific diagnostic indications for such treatment
Twenty-two clinicians recruited a total of 86 patients. require further investigation. Prescription of low doses
Mean daily dosages were 1.07 mg rising to 1.78 mg of neuroleptic drugs in intellectual disability on the
for risperidone and 2.54 mg rising to 2.94 mg for grounds of greater responsiveness and greater liability to
haloperidol. Aggression declined dramatically with all adverse effects also needs to be re-examined.
three treatments by 4 weeks, with placebo showing Trial registration: Current Controlled Trials ISRCTN
the greatest reduction (79%, versus 57% for combined 11736448.
iv
DOI: 10.3310/hta13210 Health Technology Assessment 2009; Vol. 13: No. 21
Contents
List of abbreviations .................................. vii Characteristics of population at baseline .. 20
Diagnostic status using Mini PAS-ADD ..... 21
Executive summary ................................... ix Baseline assessments .................................. 22
Passage of patients through the trial ......... 23
1 Aims of the review .................................... 1 Economic analysis of data .......................... 26
An investigation into the problems of
2 Background ............................................... 3 recruitment with NACHBID ................. 36
Introduction ............................................... 3
Definitions ................................................. 3 5 Discussion .................................................. 41
Choice of neuroleptic drugs ...................... 4 Introduction ............................................... 41
Ethical considerations ................................ 42
3 Methods ..................................................... 7 Recruitment levels ..................................... 42
Study design .............................................. 7 Findings versus current practice ................ 43
Hypotheses to be tested ............................. 7
Procedure ................................................... 8 6 Conclusions and implications .................... 45
Target population ...................................... 9
Proposed sample size ................................. 9 Acknowledgements ................................... 47
Economic evaluation .................................. 10
Further details of planned interventions ... 11 References ................................................. 49
Data collection and statistical analysis ....... 12
Outcome measures .................................... 13 Appendix 1 ................................................ 53
Independent supervision of trial ............... 15
Pharmacy procedures ................................ 16 Health Technology Assessment reports
published to date ....................................... 55
4 Results ....................................................... 19
Recruitment ............................................... 19 Health Technology Assessment
programme ................................................ 73
v
© 2009 Queen’s Printer and Controller of HMSO. All rights reserved.

DOI: 10.3310/hta13210 Health Technology Assessment 2009; Vol. 13: No. 21
List of abbreviations
ABC Aberrant Behaviour Checklist MOAS Modified Overt Aggression
Scale
BALANCE Bipolar Affective Disorder:
Lithium/Anti-Convulsant MRC Medical Research Council
Evaluation (a randomised
clinical trial) NACHBID Neuroleptics in the treatment
of Aggressive Challenging
CATIE Clinical Antipsychotic Trials of Behaviour for people with
Intervention Effectiveness Intellectual Disabilities
CEAC cost-effectiveness acceptability NICE National Institute for Health
curve and Clinical Excellence
CGI Clinical Global Impression Scale NOSIE Nurse’s Observation Scale for
Inpatient Evaluation
CSRI Client Service Receipt Inventory
OAS Overt Aggression Scale
CUtLASS Cost Utility of the Latest
Antipsychotics in Severe PAS-ADD Psychiatric Assessment Schedule
Schizophrenia for Adults with Developmental
Disability
ECG electrocardiogram
QOL-Q Quality of Life Questionnaire
ICER incremental cost-effectiveness
ratio RCT randomised controlled trial
IQ intelligence quotient spss Statistical Package for the Social
Sciences
ITT intention to treat
UKU Udvalg for Kliniske
Mini PAS- short screening version of the Undersøgelser (UKU Side
ADD PAS-ADD Effects Rating Scale)
All abbreviations that have been used in this report are listed here unless the abbreviation is well
known (e.g. NHS) or it has been used only once or it is a non-standard abbreviation used only in
figures/tables/appendices, in which case the abbreviation is defined in the figure legend or in the
notes at the end of the table.
vii
© 2009 Queen’s Printer and Controller of HMSO. All rights reserved.