Stroke - PODCAST
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Transcript Stroke - PODCAST
Prevention Of Decline in
Cognition After Stroke Trial
(PODCAST)
www.podcast-trial.org
PODCAST: Agenda, day 1
Welcome
Background
Aims & design overview
Protocol: inclusion/exclusion
Approvals
Interventions: BP/lipid lowering I
Philip Bath, John O’Brien
Philip Bath
Philip Bath
Sandeep Ankolekar
Sheila O’Malley
Philip Bath, Nathalie BaileyFlitter
Tea
Interventions: BP/lipid lowering II Philip Bath, John Reckless
Cognitive outcome measures
Philip Bath, Clive Ballard
Funders’ perspective
Susanne Sorensen
Delegates
Practice data entry (Room A41)
Trial Steering Committee (Room A42)
PODCAST: Agenda, day 2
Serious Adverse Events
Outcomes, dementia & vascular
Electronic data entry I
Philip Bath
Clive Ballard
Philip Bath
Sandeep Ankolekar
Coffee
Electronic data entry II
Imaging: definitions/upload
Site responsibilities
Site monitoring
Data monitoring
Close
Sandeep Ankolekar
Sandeep Ankolekar, Tanya Jones
Sally Utton
Lynn Stokes
Philip Bath
Philip Bath
Lunch
PODCAST: Background to the
trial
Philip Bath
Definitions
Post stroke dementia (PSD):
Dementia following symptomatic stroke
Vascular dementia (VaD):
Dementia in presence of cerebrovascular disease
Mixed dementia:
Coexisting VaD and AD
Post stroke cognitive impairment (PSCI):
Cognitive impairment following symptomatic stroke
Cognitive impairment/no dementia (CIND)
Ankolekar, Geeganage, Anderton, Hogg, Bath. JNS 2010;in press
Post-stroke dementia
High risk of vascular cognitive impairment
and dementia after stroke
Dementia
15-30% within 5 years of stroke
Strategic infarcts – rapid
Lacunar/white matter – insidious
Attentional/executive dysfunction before memory
Mechanisms
Stroke
lesion(s): strategic lesions
Cortical, lacunar, white matter disease
Atherosclerosis
High BP, high cholesterol
Blood
& risk factors
brain barrier breakdown
Toxic blood components: white matter disease
Low
blood flow, …
Prevalence of pre-stroke dementia
Pendlebury & Rothwell. Lancet Neurol 2009;8:1006
Prevalence of post-stroke dementia
By 1 year
Pendlebury & Rothwell. Lancet Neurol 2009;8:1006
Incidence of post-stroke dementia
Hospital-based cohorts/any stroke
Community-based cohorts/first stroke
Pendlebury & Rothwell. Lancet Neurol 2009;8:1006
Lessons: Observational data
PSD higher:
If dementia prevalent at time of stroke
Self-evident!
After recurrent stroke than first stroke
Predictable
In hospital series, relative to community
Predictable
Preventing recurrence may be a key way to
prevent PSD
ENOS: Cognitive decline post stroke
High BP, <48 hours of onset
Ischaemic stroke, ICH
5 continents, 16 countries, 105 centres
RCT of GTN v control; continue v stop
Blinded telephone outcomes at day 90
Primary: modified Rankin Scale
Cognitive: sMMSE (n = 465)
sMMSE 0-18/18, mean 13.4, SD 4.7
sMMSE
<14 = 178 (38.3%)
Secondary: Barthel Index, EuroQoL, Zung
www.enos.ac.uk
ENOS: Associations with low sMMSE
+ p<0.001
Age
Female sex
Previous stroke
AF
PICH
TACS
Severe stroke
High SBP
Diabetes
Temperature
Glucose
Univariate
+
+
+
+
+
+
+
+
-
Multivariate
+
+
+
+
+
+
+
Ankolekar et al, for ENOS, UK Stroke Forum 12/2009
ENOS: sMMSE and other outcomes
Measure
Scale
r
Dependency
Disability
QoL
Mood
mRS
-0.368
BI
0.432
EuroQoL 0.314
Zung
-0.135
p
<0.001
<0.001
<0.001
0.004
So, influencing one may alter the others
Ankolekar et al, for ENOS, UK Stroke Forum, 12/2009
ENOS: Implications
Poor cognitive function at day 90 post stroke
Common,
38%
Associated with:
Multiple
baseline factors including high BP
Outcome - poor functional outcome, QoL, mood
Lowering BP acutely is a potential target for
reducing early poor cognition
Ankolekar et al, for ENOS, UK Stroke Forum, 12/2009
PODCAST: Predications
High risk of cognitive decline and dementia
after stroke
Dementia
Biological rationale and some evidence that
lowering BP reduces cognitive decline and
dementia
Syst-Eur,
15-30% within 5 years of stroke
PROGRESS
Biological rationale but no good evidence
that lowering lipids reduces cognitive decline
Prevention/treatment of PSCI & PSD
Prevention
VaD AD
CEI
BP
Lipid
Antiplatelet
NSAID
SSRI
Treatment
PSD AD
?+
?+
-
+
?
-
?+
Ankolekar, Geeganage, Anderton, Hogg, Bath. JNS 2010;in press
Dementia: BP lowering trials
Ankolekar, Geeganage, Anderton, Hogg, Bath. JNS 2010;in press
Cognitive decline: BP lowering trials
Ankolekar, Geeganage, Anderton, Hogg, Bath. JNS 2010;in press
Cognitive change: BP lowering trials
Ankolekar, Geeganage, Anderton, Hogg, Bath. JNS 2010;in press
Dementia: BP lowering trials
Trial
Rx
N
OR
Syst-Eur
PROGRESS
SHEP
HYVET
PRoFESS
PROGRESS
SCOPE
CCB
ACE-I+D
Diuretic
Diuretic
ARA
ACE-I
ARA
2418
3544
4736
3336
15049
2561
4886
0.51
0.77
0.84
0.89
1.00
1.08
1.08
ΔSBP LoFU
month
-10.0 24
-12.3 49
*
-11.9 54
-15.0 25
-3.8 30
*
-4.9 49
*
-3.2 45
* Post stroke
Note: no data ALLHAT, ASCOT, PATS
Ankolekar, Geeganage, Anderton, Hogg, Bath. JNS 2010;in press
Prevention: Dementia vs BP
Meta-regression
Log odds ratio vs. SBP
Weighted: inverse of variance
Ankolekar, Geeganage, Anderton, Hogg, Bath. JNS 2010;in press
Cognition: Treatment, Statins
But:
LEADe:
No MMSE:
No data:
Neutral (n=640)
PROSPER, HPS
ASCOT, ALLHAT, SPARCL
Ankolekar, Geeganage, Anderton, Hogg, Bath. JNS 2010;in press
Lessons: Trial data
BP lowering associated with reduction in
dementia/cognitive decline
Effect
related to magnitude in fall in BP
Potential BP class differences
But
pattern not clear
Data from mix of hypertension and poststroke trials
Insufficient data on lipid lowering
Missed
opportunities
Must include cognitive measures in non-cognitive
trials
PRoFESS: Dementia over 2.5 years
RCT post ischaemic stroke, n=20,223
Dementia (%)
All
Recurrence
Telmisartan
Placebo
5
5
13
10
Aspirin/dipyridamole
Clopidogrel
5
5
12
11
Diener et al. Lancet 2008;27 Aug
PRoFESS: Recurrent Stroke
Mean follow-up 2.5 yrs
Telmisartan 8.7%
Placebo 9.2%
HR 0.95, 95%CI 0.86-1.04
P=0.23
Cox covariates: age, baseline ACE-inhibitor use, modified Rankin Scale, and baseline diabetes status
Yusuf et al. New Engl J Meds 2008;27 Aug
Analysis of cognition: Suboptimal
Ignore baseline
Ignore continuous nature of data
Comparison of on-treatment means
Comparison of on-treatment medians
Comparison of proportions of cognitive impairment
Comparison of proportions of cognitive decline
Ignore ordinal nature of cognition/dementia
Ignore death
Poor methods for dealing with missing data
Imputation of missing data
Last value carried forward
OAST-Cog: Analysis of cognition
Optimising analysis:
Binary vs ordinal vs continuous
Proportions vs Shift in scores vs Gradient
(repeated measures) vs ANCOVA vs …
Include death – part of cognitive continuum
Deal with missing data – multiple measures
Advantages: Ordinal vs Binary
More powerful statistically:
Smaller p-value / confidence intervals [1]
Smaller sample size
[2]
Smaller NNT (i.e. more favourable)
[3]
Also worth including co-variates
[4]
1. OAST. Stroke 2007;38:1911-5
2. OAST. Int J Stroke 2008;3:78-84
3. OAST. To be submitted
4. OAST. Stroke 2009;40:888-94
ECASS III: Modified Rankin Scale
mRS 0,1 vs 2-6: 52.4% vs. 45.2%; ARR 7.2%
Odds ratio 1.34 (95% CI 1.02-1.76, P = 0.04)
Hacke et al. New Engl J Med 2008;359:1317-29
Ordered categorical outcomes
Such ordered categorical outcomes could be more powerful statistically,
reduce sample size, reduce numbers-needed to treat, and improve
health economic arguments
Bath et al. Stroke 2008
Stroke, 4 levels: NASCET
No Endarterectomy Yes
‘p’ 2 level 0.002, 3 level 0.001, 4 level 0.0009
0%
100%
Number of patients (log)
No stroke
Mild
Severe
Fatal
Geeganage, Bath, Gray, Collier, Pocock. British Hypertension Society 2006
PROGRESS: Cognition (severity)
Binary, dementia: p=0.22 NNT 129 (49-∞)
Ordinal ‘shift’:
p=0.021 NNT 47 (28-138)
Ankolekar, Geeganage, Bath. In preparation
OAST-Cog: Relevant trials
Vascular:
BP: HOPE, HYVET, ONTARGET, PROGRESS,
PRoFESS, SCOPE, Syst-Eur, TRANSCEND, …
Lipid: HPS, LEADe, PROSPER, …
Cholinesterase inhibitors:
Antiplatelets:
PRoFESS, …
NSAIDs:
[email protected]
Lessons: Trial design
Interventions: Limited
Cholinesterase
inhibitors, lipid/BP lowering, …
Prevention vs. treatment
Risk factor difference: often small (BP, lipid)
Follow-up: usually too short (months)
Size: usually too small
Analysis: often suboptimal
Outcomes: varying, some non-ideal
MMSE,
TICS, …
Cognition: secondary/tertiary outcome
SPS3
Secondary Prevention of Small Subcortical Stroke trial
N=2,500 with MR+ve lacunar stroke/TIA (<6/12), age 40+
US, Canada, Mexico, Latin America, Spain
Interventions (for mean 3 years) – factorial design:
Aspirin + clopidogrel vs. aspirin + placebo
SBP lowering: <130mmHg vs. <150 mmHg
Primary outcomes:
Ischaemic stroke recurrence
Haemorrhagic stroke (PICH, SAH)
Secondary outcome:
Rate of cognitive decline (for AC vs. A)
www.sps3.org/
NCT00059306
PODCAST: Addressing lessons
Cognition (inc. dementia) is primary outcome
Intensive vs guideline BP lowering
Factor in lipid lowering (ischaemic stroke)
Recruit 3-7/12 post stroke
Force big difference, A(B)/CD rule
Cognition stable, exclude prevalent dementia/early PSD
Recruit from hospital
Long follow-up (years)
Large sample size (1,000s)
Optimise statistical analysis
www.podcast-trial.org/
IRCTN85562386
PODCAST: Background
Any questions?
PODCAST: Trial aims & overview
Philip Bath
PODCAST
Prevention of Dementia & Cognitive decline
After Stroke trial
Randomised controlled partial factorial trial
Open
label, blinded outcome, blinded adjudication
Phases:
Start-up:
600 patients, 40 SRN centres, 3 years
Main: ~3,500 patients over 5 years
100+ centres – UK, France? Singapore? …
PODCAST: Interventions
All stroke
Intensive
<125 mmHg vs. <140 mmHg
Ischaemic stroke only
Intensive
vs. guideline lipid lowering
<4/2 mmol/l vs. <5/3 mmol/l
(Statins
vs. guideline BP lowering
associated with increased bleeding)
Trial of management trial, not specific drugs
PODCAST: Sample size per group
Assumes ~90% of patients are ischaemic
ICH
No lipid
BP int
30
BP guide 30
Ischaemic stroke
Lipid
Total
Lip int
Lip guide
135
135
300
135
135
300
Total
270
60
270
600
PODCAST: Primary outcome
Comparison of cognition using the
standardised ’Addenbrooke’s Cognitive
Examination’ between treatment groups
Proportion
with reduction in ACE at end of trial; or
Shift in ordinal cognition/dementia
Method of analysis subject to results of
OAST-Cog and other studies
ACE includes ‘Mini-Mental State Examination’
(MMSE)
PODCAST: Secondary outcomes
Individual cognitive domains:
Global
TICS, MOCA
Attention
Trail making A/B
Attention/executive
Stroop
Memory
MMSE
Informant
IQCODE
Vascular:
Stroke recurrence, MI
Function
mRS, QoL, mood
PODCAST: Safety
Death
Falls (leading to fracture or hospitalisation)
Postural hypotension
Myositis, rhabdomyolysis
SAEs
Notes:
AEs will not be collected since drugs are
licensed
Outcomes and SAEs will be entered using a
common form to facilitate data collection
PODCAST: Other aims
CT/MR scanning:
Index event
Characterise patients at baseline
On-treatment clinical scan (dementia, vascular)
Characterise clinical event
Health economics
Costs of dementia/cognitive impairment
Costs of excess treatment
Carer, institutionalisation
BP drugs, lipid drugs
Cost/event (cognitive decline) prevented
Cost/QALY
PODCAST: Recruiting centres
Start-up phase:
Recruitment over 2 years
40+
sites x 1 patient/site/month = ~400 pa
Follow-up over 1-2.5 years
Recruitment:
SRN
hospital sites
Follow-up:
Primary
care (guideline management, blood tests)
SRN hospitals (DeNDRoN)
PODCAST: Status
Approvals:
Eudract, MHRA, MREC, SSI
ISRCTN 85562386
SRN adoption (with DeNDRoN, PCRN)
User/consumer support
AS QRD, TSA, Nottingham Forum
Documents:
Protocol, PIS/RIS
http://www.podcast-trial.org/
Data forms, database, algorithms
https://www.nottingham.ac.uk/~nszwww/podcas
t/podcasttrialdb/demo/podcast_login.php
PODCAST: Time lines, start-up
Start-up
-6-0
Protocol
Approvals
<>
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Site id
<
Funding
Recruit
patients
Review
main phase?
0-2
3-6
7-18
19-24 25-30 31-36
=
<
>
=
=
=
<
=
=
>
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PODCAST: Promotion
UK Investigator meeting
Stroke Res. Network Annual meeting
2010, May 2011 (Hamburg)
Other meetings
2009, Dec 2010 (Glasgow)
European Stroke Conference
Thames, West Midlands, …
UK Stroke Forum
2009, 2010, …
SRN Local Research Networks
Sept 2010, …
Int Geriatrics Society (Sept 2010), …
Trial protocol publication
PODCAST: Funding
Start-up phase (n=600), joint equal funding
Alzheimer’s
Society
The Stroke Association
Main phase
To
be submitted for funding when feasibility data
from start-up available
PODCAST: Trial Steering Committee
Independent Chair
Grant applicants
Independent experts
Stroke
Vascular/cardiology
Ahamad Hassan (Leeds)
Stephen Ball (Leeds)
Patient reps
Alzheimer’S
The
Society
Stroke Association
Funder rep
Sponsor rep
John O’Brien
x9
Andrew Pepper, Dave
Hanbury
John Murray
Susanne Sorensen
Angela Shone
PODCAST: Grant applicants
Clive Ballard
Philip Bath
Alistair Burns
Gary Ford
Jonathan Mant
Peter Passmore
John Reckless
Rob Stewart
Joanna Wardlaw
London
Nottingham
Manchester
Newcastle
Cambridge
Belfast
Bath
London
Edinburgh
PODCAST: Adjudication Committees
Cognition/dementia:
Alistair Burns (Manchester)
Clive Ballard (London)
Gary Ford (Newcastle)
Vascular:
Peter Passmore (Belfast)
Amit Mistri (Leicester)
Bob Wilcox (Nottingham)
PODCAST: Staff
Trial administrator (nurse)
Lynn
Stokes
Outcome assessor (blinded, nurse)
TBA
Statistician (Ms C Hogg)
3
years, 0.1 wte
Programmer (Ms E Walker)
1
year, 1.0 wte
Trial aims & overview
Any questions?
PODCAST: Protocol, inclusions &
exclusions
Sandeep Ankolekar
PODCAST: Inclusion criteria, 1
Age/cognition:
Age>70
& t-MMSE>16/22
Age 60-69 & MMSE 17-20/22
Functionally independent (mRS 0-2)
Stroke:
Ischaemic
- any OCSP/TOAST type
Primary intracerebral haemorrhage – cortical or
basal ganglia
3-7 months post-event
PODCAST: Inclusion criteria, 2
Systolic BP:
125-170
mmHg
Total cholesterol:
3-8
mmol/l
Presence of an informant (partner, sibling,
child, friend)
Capacity and willingness to give consent
PODCAST: Exclusion criteria, 1
Patients not meeting inclusion criteria
Subarachnoid haemorrhage
Secondary intracranial haemorrhage
Trauma,
AVM, cavernoma
No CT/MR during index stroke
Inability to give consent or do study
measures
e.g.
severe dysphasia, weakness of dominant arm
Definite need for intensive BP control
Definite need for potent statin or ezetimibe
PODCAST: Exclusion criteria, 2
Need for a cholinesterase inhibitor
Familial stroke associated with dementia, e.g.
CADASIL
Chronic renal failure: eGFR<45 (,37 African/AfroCaribbean)
Chronic liver disease: ALT>60
Ongoing participation in trials in drug and/or devices
(screening allowed if the other trial completes prior
to PODCAST randomisation)
Any serious comorbidity (life expectancy <24
months)
Clinically unstable at the time of enrolment
Dementia
PODCAST: Randomisation
Randomisation and data collection/validation to be
performed in real-time over a secure internet site
Blinding
Stratification
Both participants and investigators are unblinded
Stroke type (ischaemic/ICH)
Country
Minimisation on prognostic baseline factors
Age (<70/>70 yrs)
MMSE (>28/<28)
SBP (<140/>140 mmHg)
No. of BP drugs (0-1/>1)
Time from stroke (>4/<4 m)
Region (subcortex/cortex)
Sex (female/male)
TC (<5.0/>5.0 mM)
Statin (no/yes)
Dysphasia (no/yes)
Leukoaraiosis (no/yes)
Selection of Participants
Initial approach
Hospital
based stroke services
General pre-screen
Approach patient/PIS
Screening Consent (Form)
Collect GP/Patient/Informant contact details
(Form)
Screening telephone call
GP letter and Practice Briefing Sheet (Form)
PIS (Form), Lipid test form (IS only)
Arrange baseline visit (minimum 2 weeks
after screening telephone call)
Trial Flow Chart, 1
Informed Consent
All patients must have capacity
Screening consent
PIS
(Form)
Participant Screening Consent (Form)
Baseline consent
Pre
consent questions
What is the trial aiming to achieve ?
What are the two groups of intervention ?
How long will treatment continue ?
Form
Informant
Informant
PIS (Form)
Informant Consent (Form)
Trial Flow Chart, 2
Post Randomisation
Genetic blood tests
GP letter
Intensive groups
UE
form for the next visit (BP arm)
Lipid form for the 3 month visit (lipid arm)
Guideline groups
Refer
back to GP
Next visit at 6 months
PODCAST Substudies
Pharmacogenetics substudy
24 hour ambulatory blood pressure
monitoring substudy
Neuroimaging sub study
Separate information sheet and consent
forms: single form for all three sub
studies(Form)
Only genetic sub study: currently active for
all centres
Centres will be contacted regarding other sub
studies
Genetics Substudy
Aim
Study
effect of interventions on blood biomarkers
Pharmacogenetics: why different individuals have
different response to drugs?
Baseline or second clinic visit
Adequate local centrifuge/freezer facilities
4 ml EDTA (purple top)- frozen directly
8 ml serum (red [preferred] or gold top:
centrifuge at 5000 rpm for 10 minutes prior
to freezing
Freezing: -20°Celsius or lower
Transfer: Arranged by PODCAST ICC
Neuroimaging Substudy
Aim
Can
imaging characteristics be used as surrogate
markers for cognitive impairment?
Can treatment modify these characteristics?
What does it involve?
An
additional brain scan at the end of 3 years
MRI preferred (or CT scan)
Await funding
No sites currently active
Ambulatory BP monitoring Substudy
Aim
Does
24 BP monitoring help in better
management of patients BP?
3 recordings
Baseline,
12 mths and 24 mths
One day -24 hours
Currently not active any center
Centres with facilities will be contacted
Follow up
Protocol Violations and Deviations
Violations
Failure
to adhere to the inclusion and exclusion
criteria
Participant doesn’t receive intensive BP or lipid
lowering when randomised to do so.
Failure to complete SAEs where appropriate
Annual clinic/telephone assessments are not
performed
Deviations
Assessments
done outside the specified time by
more than 30 days
Participant not fully compliant with randomised
treatment
Withdrawal of participants
Withdrawal of consent
Clinical indication
Failure of participant to adhere to protocol
requirements
Protocol: Reference Document
List and definitions of SAEs
Appendix: Cognitive and other assessments
Definitions
Ethical and regulatory aspects
Trial Management
Trial treatment, algorithms
Protocol, inclusions & exclusions
Any questions?
PODCAST: Approval of sites
Sheila O’Malley
Manager, Trent Comprehensive
Local Research network
Approval of sites
Any questions?
PODCAST: Interventions
Philip Bath
John Reckless
Nathalie Bailey-Flitter
PODCAST: Interventions by type
Assumes ~90% of patients are ischaemic
ICH
No lipid
BP int
30
BP guide 30
Ischaemic stroke
Lipid
Total
Lip int
Lip guide
135
135
300
135
135
300
Total
270
60
270
600
PODCAST: Interventions
Management site
Hospital
GP
BP lowering
Lipid lowering
Intensive
Intensive
Guideline
Guideline
Intensity:
BP lowering - number of drugs
Lipid lowering - type & numbers of drugs
PODCAST: Hospital Research Clinic
Pre-screen:
Screening telephone call:
During acute/sub acute phase
MMSE, mRS
Baseline visit:
Consent, history, exam
Intensive BP group
Management: Initiate/escalate lifestyle and drugs
Target systolic BP <125 mmHg
Intensive lipid group
Management: Initiate/escalate lifestyle and drugs
Target LDL-cholesterol <2 mmol/l (TC <4 mmol/l)
Guideline BP group
Management: No action (patient should see GP if SBP>160)
Guideline lipid group
Management: No action (patient should see GP if TC>7)
PODCAST: Hospital Research Clinic
Intensive BP group visits (1, 2, 3 months)
Intensive lipid group visits (3 months)
Initiate/escalate BP management
Initiate/escalate lipid management
Follow-up visits (6, 18, 30, … months):
Cog exam, identify vascular events and AEs
Intensive BP group
Management: Initiate/escalate lifestyle and drugs
Target systolic BP <125 mmHg
Intensive lipid group
Management: Initiate/escalate lifestyle and drugs
Target LDL-cholesterol <2 mmol/l (TC <4 mmol/l)
Guideline BP group
Management: No action (patient should see GP if SBP>160)
Guideline lipid group
Management: No action (patient should see GP if TC>7)
PODCAST: General practice, 1
PCTs likely to have ~20 participants
Each GP likely to have <2 participants
On treatment:
All groups
Blood
tests - U&E, fasting TC/TG/HDL
LDL-c is calculated by lab
~2 weeks before next hospital research clinic
Address
any AEs
Refer back to hospital research clinic (or telephone) if
necessary
PODCAST: General practice, 2
Guideline BP group
Management:
Usual practice/NICE BP guideline
A(B)/CD rule
Likely to be on 0-2 drugs
Target systolic BP <140 mmHg
Guideline lipid group
Management:
Usual practice/NICE lipid guideline
Likely to be on nothing or simvastatin, pravastatin, …
Target LDL-cholesterol <3 mmol/l (TC<5 mmol/l)
PODCAST: General practice, 3
Role in intensive groups:
Intensive BP group
Management:
Continue hospital prescription
(Patient should see hospital early if SBP>140 mmHg)
Intensive lipid group
Management:
Continue hospital prescription
(Patient should see hospital early if TC>5 mmol/l)
PODCAST: General practice, 4
Lipid management:
To follow NICE and local guidelines
Where considered that lipid Rx is appropriate
likely targets are:
Total
cholesterol <5 mmol/l, LDL-C <3 mmol/l
Use a generic statin:
Simvastatin
or pravastatin 40mg daily
Lower targets, a different statin or use of
another agent are not normally
recommended unless patient is at very high
risk for another reason
PODCAST: Intensive - BP group, 1
Participants: All
Aim: maintain SBP>10 mmHg difference between
groups
Target SBP<125 mmHg
Specific advice on diet
Salt restriction
No added salt in cooking or at table
Avoid/reduce processed food (packets, cans)
Fruit & vegetables
Drug dose/numbers will be escalated monthly at
hospital research clinic using an algorithm until the
target is reached or 3 visits completed
Wean up drugs if target not reached
Wean down drugs if symptomatic hypotension
Months 1, 2, 3, 6, 18, 30, …
PODCAST: Intensive - BP group, 2
Drugs chosen using NICE/BHS ‘A(B)/CD’ rule:
A = ACE-inhibitor (e.g. perindopril), ARB (e.g. losartan)
Renin inhibitor (e.g. aliskiren)
B = ß-blocker (e.g. atenolol)
C = calcium channel blocker (e.g. amlodipine)
D = diuretic (e.g. bendroflumethiazide)
α-blocker (e.g. doxazosin)
Potassium sparing diuretic (e.g. spironolactone)
Central acting (e.g. moxonidine)
Management decisions up to prescriber
Computer algorithm will act as aide memoir
Composition of agents will vary
Other indications, e.g. 'A'/'B' post MI
Contraindications, e.g. avoid 'A' in bilateral RAS, ‘B’ in asthma
GP will support with re-prescribing
PODCAST: Intensive - BP group, 3
Algorithm (general):
Follow NICE/BHS AB/C(D) rule
Choose true once daily drugs (to improve compliance)
Use drugs at medium dose where possible (to reduce AE)
Add a new drug in preference to maximising the dose of an
existing drug (to reduce AE)
Avoid drug classes if >2 drugs in that class have an AE when
used at max dose
Record AEs by dose: none, at high / medium / low dose
Avoid drug if it has an AE at high dose, i.e. only use it at
low/moderate dose
Avoid a drug if one from the same super-class is being used
(eg ACE-I on top of an ARB)
Do not use a drug if another from the same class is being used
Allow up to 7 (super-)drug classes
Hard code the algorithm - address every potential combination
Avoid combinations (proprietary, high cost)
PODCAST: Intensive - BP group, 4
ACEI:
Super-class: ACEI, ARB, RI
Use ARB (or RI) if ACEI cough
Rank high in suggestions
Rank low if already on an potassium-sparing diuretic and not
on a non-loop or loop diuretic
If on, preferentially add a CCB or diuretic
Avoid if RAS, high potassium
Useful if previous MI, CCF
ß-Blockers:
Rank low
If on, preferentially add a CCB, diuretic, a-blocker
Avoid if asthma, PAD or heart-block
Useful if previous MI, AF
PODCAST: Intensive - BP group, 5
CCB:
Super-class: dihydropyridine, phenylalkamine and
benzothiazepines
Rank high in suggestions
If on, add a ACE-I (or beta-blocker if not on verapamil)
Avoid Verapamil if on a beta-blocker
Diuretics:
Super-class: non-loop and loop diuretics
Use loop (rather than non-loop) if low GFR
If on, add an ACE-I, beta-blocker or potassium-sparing diuretic
Avoid if potassium low
Avoid if sodium low
PODCAST: Intensive BP Group, 6
Alpha-blockers:
Rank medium in suggestions
If on, add a beta-blocker
Avoid as a first-line agent
Potassium-sparing diuretics:
Rank high is already on 3 drugs
Rank lower in suggestions if already on ACE-I
Rank low if already on an ACE-I and not on a diuretic
If on, add a diuretic
Avoid as a first-line agent
Avoid if potassium high
Avoid if GFR low
PODCAST: Intensive BP Group, 7
Centrally acting drugs:
Rank low in suggestions
If on, add anything
Avoid if heart block present
Avoid if GFR low
Wean off if stopping (wean-off beta-blocker first if
also being stopped)
PODCAST: Intensive BP Group, 8
Adverse effects:
Generic:
Symptomatic
hypotension
Falls
Specific to Class
ACE-I:
Beta-blockers:
CBBs:
verapamil Diuretics:
Alpha-blockers:
K-sparing diuretics:
Central acting:
cough, fist dose low BP
bradycardia
bradycardia
low sodium/potassium
high potassium
PODCAST: Intensive Lipid Group, 1
Participants: Ischaemic stroke only
Aim: TC>1 mmol/l difference between groups
Target LDL-cholesterol <2 mmol/l
Measure fasting, not random, lipids
Lifestyle advice
Or Total Cholesterol <4 mmol/l if no LDL-c
So prioritise on LDL-c, not TC
Reduce weight
Moderate alcohol
Low saturated fat diet
Cholesterol lowering spreads (ProActiv, Benechol)
Use potent statin
E.g. atorvastatin 80 mg, rosuvastatin
PODCAST: Intensive Lipid Group, 2
If LDL-c above target (>2 mmol/l) at 3/12 or
later
Increase
statin dose if not already at maximum
Add ezetimibe 10 mg (NICE TA 132)
Other interventions if needed
Other
statins - simvastatin
Fibrates
Resin
Nicotinic acid derivative
Actual drug up to prescriber
Computer
algorithm will act as aide memoir
PODCAST: Intensive Lipid Group, 3
There is no evidence that LDL-c ~ 1 mmol/l are
inappropriate
Data from cardiovascular RCTs suggest that best
prevention achieved with LDL-c < 1.8 mmol/l
If LDL-c < 1.8mmol/l, maintain treatment if well
tolerated
If only TC available, aim for <3.5 mmol/l
Approximates to LDL-c < 2mmol/l
If LDL-c < 2 mmol/l with simvastatin (or
pravastatin) 40 mg then OK, but atorvastatin or
rosuvastatin more likely to be successful
Rosuvastatin (20mg, increased after 1 month to
40mg daily) is an alternative to atorvastatin
PODCAST: Intensive Lipid Group, 4
If LDL-c > 2 mmol/l on statin (at maximum
tolerated dose)
Add
ezetimibe 10 mg
If LDL-c > 2 mmol/l on statin and ezetimibe
Add
nicotinic acid as 3rd agent
Use Tredaptive (nicotinic acid + laropiprant) so
less flushing side-effect
If LDL-c > 2 mmol on statin, ezetimibe and
nicotinic acid
Add
resin
PODCAST: Intensive Lipid Group, 5
Adverse events:
Class specific
Statins:
Nicotinic
acid:
myositis, rhabdomyositis
flushing
Fibrates:
Resins:
GI upset
PODCAST: Intensive Lipid Group, 6
Have a (pre-)baseline ALT and CK
No
need to monitor these on treatment unless
liver or muscle symptoms
Significant myositis is rare.
Localised
muscle symptoms, cramps and joint
pains are not statin-related
Generalised muscle pain, discomfort, tenderness
or weakness lasting more than 2 days should be
investigated (participant --> GP --> Clinic)
PODCAST: Monitoring interventions
Coordinating centre nurse
Monitor
computer guided algorithms and
individual patient BP and lipids (unblinded)
Will contact centre if participant badly missing
target
Trial Management Group
Monitor
BP and lipid levels, and crossovers, by
treatment group (unblinded)
TMG will report to TSC 6 monthly
Interventions: Practicalities, 1
Roles:
Research nurse
Obtain
current prescriptions
Patients should bring tables in for each clinic
Obtain
BP and latest fasting lipids
Obtain AEs, SAEs
Give form for fasting lipid - to do 2/52 before next
research clinic
Medic
Prescribe
Address
AEs, SAEs
Interventions: Practicalities, 2
Use drugs you are familiar with
Look up doses, adverse events, interactions
Discuss common adverse events with
participants - this will help reduce them!
Interventions: Algorithms
Computerised aide memoir
Uses data entered at time of visit
Demographic:
age, race-ethnicity
BP,
lipid levels
Drugs, doses
Adverse events, contraindications
Will suggest possible management changes
Several
solutions (in most cases)
An aide memoir, not to be followed ‘blindly’
The final decision rests with the prescribing medic
Requires live access to internet
Interventions
Any questions?
PODCAST: Cognitive outcome
meaures
Philip Bath
Clive Ballard
Cognitive assessments
Cognition:
Primary outcome of trial
Addenbrooke’s
Cognitive Examination
Key secondary outcomes
IQCODE
Stroop
Trail
making A & B
Telephone assessments (blinded)
MMSE
TICS
(Telephone Interview of Cognition Screen)
ACE
Aim:
Cognitive screen
Primary outcome in
PODCAST
Components:
Orientation
Attention
Memory
Verbal Fluency
Language
Visuospatial
Includes:
Mini-Mental State Exam
We have extended it to
include a modified
version of the Montreal
Cognitive Assessment
http://www.podcasttrial.org/jevpybki.htm
PodTrainAce.wmv
IQCODE
Aim:
Cognitive screen done
by third party
Scores:
Average score over 26
situations: 3 (/5)
Relative, close friend
Secondary outcome in
PODCAST
Assesses change from
10 years previously
Dementia >3.3-4.0
Total core: 26-130
http://www.podcasttrial.org/jevpybki.htm
PodTrainIQCodeInterview.
mov
Stroop
Aim:
Assessment of
Executive function
Measure of:
Reaction time
Selective attention
Increased interference
with:
Dementia
Brain damage
Depression
Addictions
Schizophrenia, …
http://www.podcasttrial.org/jevpybki.htm
QuickTime™ and a
decompressor
are needed to see this picture.
Trail making A
Download pdf file
and print out, and
provide pencil
Draw lines between
points 1 to 25 in
order as quickly as
possible and
without lifting penpencil up, i.e.
1-2-3-4-5-6-7- …
Correct any errors
as they happen
Time procedure
Should take <90
seconds
QuickTime™ and a
decompressor
are needed to see this picture.
Trail making B
Download pdf file and
print out, and provide
pencil
Draw lines between
points 1 to 13 and A to
L in order as quickly as
possible and without
lifting pen-pencil up, i.e.
Correct any errors as
they happen
Time procedure
1-A-2-B-3-C-4-D- …
Should take <180
seconds
Discontinue when total
for tests A & B exceeds
5 minutes
QuickTime™ and a
decompressor
are needed to see this picture.
Dementia
Dementia is component of primary outcome
Detection
By
participant, informant, research staff
Results of PODCAST cognition testing (low scores)
Demegraph: integrates MMSE and IQCODE
Needs formal diagnostic Assessment
By
expert in research clinic, memory clinic, …
Complete dementia outcome form
Include
‘vignette’
Free text, letter from memory clinic, …
Adjudication
committee
Dementia: Free Text Vignette
What practical cognitive impairments are
there in every day life?
Has the severity of practical cognitive
impairments in every day life progressed?
To what degree is the level of functional
impairment explained by stroke &
cerebrovascular events?
Has the level of functional impairments
progressed in the absence of further strokes?
What examples are there of changes in other
domains such as social functioning,
personality?
Cognition: Timings of testing
Pre-screen on wards: Informal --> ‘normal’
Screening telephone call (2-6/12 post stroke)
MMSE, mRS
Baseline clinic (3-7/12 post stroke)
ACE (MMSE, MOCA), Stroop, Trail making, TICS,
IQCODE (informant)
[Telephone (central, 12, 24, 36, …/12)
tMMSE, TICS, mRS]
Clinic (6, 18, 30, …/12)
ACE (MMSE, MOCA), Stroop, Trail, TCS, IQCODE
Cognition: Practicalities
Need:
Quiet room
Adequate time with participant and informant
Consistent approach - same nurse
Print outs of Trail Making Tests A & B
Access to internet - direct entry of data
including Stroop
May need a break mid-way
Cognition testing can be done by research
nurses or medic
Training and practice (on each other)
Cognitive outcome measures
Any questions?
Funders’ perspectives: AS/TSA
Susanne Sorensen
Funders’ perspectives: AS/TSA
Any questions?
End of day 1
Thanks
Enjoy the evening
See you at 09.00 tomorrow!
PODCAST: Agenda, day 2
Serious Adverse Events
Outcomes, dementia & vascular
Electronic data entry I
Philip Bath
Clive Ballard
Philip Bath
Sandeep Ankolekar
Coffee
Electronic data entry II
Imaging: definitions/upload
Site responsibilities
Site monitoring
Data monitoring
Close
Sandeep Ankolekar
Sandeep Ankolekar, Tanya Jones
Sally Utton
Lynn Stokes
Philip Bath
Philip Bath
Lunch
PODCAST: Serious Adverse
Event reporting
including pharmacovigilance
Philip Bath
PODCAST: Outcomes/SAEs
All Events and SAEs within final follow-up
(end-of-trial) will be collected
Events and SAEs will be collected using same
online form to avoid confusion
Forms will be adjudicated by blinded
observers - dementia, vascular, SAE
Insufficient
information follow-up questions
Events:
Dementia
Vascular: stroke, TIA, MI, angina, death
SAEs
www.podcast-trial.org
Pharmacovigilance: Question
What is it?
1. The
science and activities to monitor drug
interactions
2. The science and activities to detect, assess,
understand and prevent adverse drug effects
Pharmacovigilance: Answer
What is it?
1. The
science and activities to monitor drug
interactions
2. The science and activities to detect,
assess, understand and prevent adverse
drug effects
PODCAST: Adverse events
Only collect ARs:
These will influence future drug treatment
Do not collect all AEs:
Trial of management startegies
Lifestyle
All drug BP and lipid interventions are
already licensed and in routine clinical use
Considerable information is already known
for each
(S)AE: Recording - Question
What should be recorded?
1. Any
untoward medical occurrence to a
patient after (s)he has signed the informed
consent
2. Operations/procedures occurring during the
trial, but scheduled prior to trial enrolment
3. Illnesses recorded at screening visit
4. Significant laboratory abnormalities
(S)AE: Recording - Answer
What should be recorded?
1. Any
untoward medical occurrence to a
patient after (s)he has signed the
informed consent
2. Operations/procedures occurring during the
trial, but scheduled prior to trial enrolment
3. Illnesses recorded at screening visit
4. Significant laboratory abnormalities
Adverse event: Definition
Any untoward medical occurrence in a study
subject administered an intervention and
which does not necessarily have a causal
relationship with this treatment
Reporting an adverse event is NOT limited to
NOR implies a causal relationship
A medical or surgical procedure is not an AE,
the reason for the procedure is!
Abnormal laboratory values are AEs if
‘clinically significant’, lead to treatment
change, are a SAE, or are a safety risk
SAE: Components - Question
Any untoward medical occurrence that?
1. Results in death
2. Is life-threatening
3. Requires inpatient hospitalisation or
prolongation of existing hospitalisation
4. Is an adverse event assessed as severe
5. Results in persistent or significant
disability/incapacity
6. Is a congenital anomaly/birth defect
7. Is medically important
SAE: Components - Answer
Any untoward medical occurrence that?
1. Results in death
2. Is life-threatening
3. Requires inpatient hospitalisation or
prolongation of existing hospitalisation
4. Is an adverse event assessed as severe
5. Results in persistent or significant
disability/incapacity
6. Is a congenital anomaly/birth defect
7. Is medically important
PODCAST: Outcome/SAE questions
When did it start?
after
Before / during /
Fatal?
Life-threatening?
Hospitalisation?
Disabling?
Birth defect?
Medically important?
Category?
Describe?
Y/N
Y/N
Y/N
Y/N
Y/N
Y/N
SAE
www.podcast-trial.org
SAE: Life-threatening
Refers to an event in which the patient was
at risk of death at the time of the event
Does not refer to an event which
hypothetically might have caused death if it
had been more severe
SAE: Medically important
Serious adverse events that may jeopardise
the patient or may require medical or
surgical intervention to prevent one of the
other serious outcomes
Examples:
Allergic bronchospasm requiring intensive
treatment in A&E
Convulsion not resulting in in-patient
hospitalisation
An abnormal lab value which needs active
out-patient management
SAE: Required information – Quest.
1.
2.
3.
4.
5.
6.
7.
Causality
Prognosis
Patient’s address
Intensity
Outcome
Hospital cost
Action taken
SAE: Required information - Answer
1.
2.
3.
4.
5.
6.
7.
Causality
Prognosis
Patient’s address
Intensity
Outcome
Hospital cost
Action taken
PODCAST: Outcome/SAE questions
Date/time began?
Nature?
Intensity?
Relationship?
Action?
Outcome?
Single / Multiple
Mild / Moderate / Severe
Definitely not / … / definite
Continue/Missed/Stopped
Recovered / … / Died
www.podcast-trial.org
SAE: Intensity
Severe
Incapacitating
Prevents
daily activities
Not a measure of seriousness
Moderate
Uncomfortable
Impairs
daily activities
Mild
Minimal
discomfort
Does not interfere with daily activities
SAE: Serious or Severe
‘Severe’
A
medical judgement used to describe intensity
(severity) of a specific event (as in mild,
moderate, or severe myocardial infarction)
The event itself, however, may be of relatively
minor medical significance (e.g. ‘severe
headache’). So severity does not mean serious
‘Serious’
Based
on event outcome or action criteria usually
associated with events that pose a threat to a
patient's life or functioning
Serves as a guide for defining regulatory reporting
obligations
SAE: Relationship / causality
Definitely
Probably
Possibly
Unlikely
Not related
Temporal
relationship
Re-challenge Other
aetiology
v. strong
strong
suggestive
weak
none
v. strong
strong
N/A
N/A
N/A
none
unlikely
equally likely
likely
v. likely
SAE: Action taken
Treatment:
None, i.e. continued
Interrupted
Discontinued
SAE: Outcome
Recovered
Not yet recovered
Used
Died
for chronic conditions
SAE: Outcome - Question
What is important when recording a SAE with
fatal outcome?
1. Death
should be the primary SAE event
2. Death is an outcome
3. Provide a clinical summary describing the
symptoms/events preceding death
4. Provide the autopsy report when available
SAE: Outcome - Answer
What is important when recording a SAE with
fatal outcome?
1. Death
should be the primary SAE event
2. Death is an outcome
3. Provide a clinicial summary describing
the symptoms/events preceding death
4. Provide the autopsy report when
available
So, death is an outcome, not an event!
SAE: Diagnostic evidence
Give as much information as possible:
Pathology
Radiology
ECG
Bacteriology
Biochemistry
Haematology
Clinical
Comment
PM, …
CT, MR, Carotid, …
AF, MI, LVH, …
LFTs, CRP, …
FBC, ESR, …
NIHSS, …
SUSAR, 1
Suspected Unexpected Serious Adverse
Reaction:
Unexpected
Unlikely
in context of antiplatelet agents
Serious – needs to meet criteria for serious
Fatal
Life
threatening
Disabling
Hospitalisation (admission or prolongation)
Teratogenic
Medically important
SUSAR, 2
Reaction
Suspected
drug reaction
Not just a consequence or complication of stroke
Requires notification to Trial Office <24 hours
PODCAST should generate very few, if any,
SUSARs
But not CTIMP trial!
SAE: Example - Question
A patient experiences myocardial infarction
with chest pain, dyspnoea, diaphoresis, ECG
changes, enzyme changes, and jaundice.
What SAE(s) should be recorded?
1. Record
all diagnoses and symptoms as SAEs
2. Only record the overall diagnosis of MI as an
SAE
3. Record MI and jaundice as SAEs
SAE: Example - Answer
A patient experiences myocardial infarction
with chest pain, dyspnoea, diaphoresis, ECG
changes, enzyme changes, and jaundice.
What SAE(s) should be recorded?
1. Record
all diagnoses and symptoms as SAEs
2. Only record the overall diagnosis of MI as an
SAE
3. Record MI and jaundice as SAEs
SAE: Coding
Example
Investigator term
Verbatim, raw term
Standard term
Headache, head pain
cephalgia
Headache
Please look for standard term in available list
SAE: Problems in trials
Failure to report
Select inappropriate SAE type
Too little diagnostic evidence submitted (or
available)
Chase
other hospitals, fax available information
Failure to report promptly
SAE:
>48 hours of knowledge
SUSAR: >24 hours of knowledge
If uncertain, ask Coordinating Centre
Serious Adverse Events
Any questions?
PODCAST: Outcomes, cognition
& dementia, vascular
Clive Ballard
Philip Bath
PODCAST: Secondary outcomes, 1
Dementia
Total - ICD-10
AD - NINCDS/ADRDA
VaD - NINDS-AIREN
With/without recurrent stroke
Cognition:
Global – tMMSE, TICS-m
Semantic - animal naming (part of ACE)
Association – trail making A/B
Cognitive decline with/without recurrent stroke
Ordinal cognition (MMSE>28/23-28/10-22/<10/dementia/dead)
Informant (IQCODE)
Stroop
PODCAST: Secondary outcomes, 2
Quality of life – EuroQoL, informant (DEMQoL)
Depression (Zung)
Dependency (mRS)
Disability (BI)
Ordinal vascular events
Stroke: fatal/severe non-fatal/mild/TIA/none
MI: fatal/non-fatal/angina/none
Vascular: fatal/non-fatal/none
New diabetes
New AF
Residence (home, institution); care package, family
BP (SBP, DBP, PP, RPP)
Lipids (TC, TG, HDL, calculated LDL)
PODCAST: Dementia adjudication
Baseline:
Age, sex, race, education
HT, HL, DM, smoking, …
Stroke: type (IS/ICH, cortical, subcortical)
During trial:
New vascular event: stroke (type, site), MI
Non BP/lipid medications
Diagnosis of dementia: third party/at clinic
Vignette (free text)
www.podcast-trial.org
PODCAST: Dementia adjudication
S
+
tMMSE
ACE
subscales
MMSE
TICS
mRS
+
Stroop
Trail making
IQCODE
B
+
+
+
+
+
+
+
6
+
+
+
+
+
+
+
+
+
12
+
+
+
18
+
+
+
+
+
+
+
+
24
+
+
+
30
+
+
+
+
+
+
+
…
+
www.podcast-trial.org
Dementia: Free Text Vignette
Give as much information as possible
Supply memory clinic letter
Important information:
Is the severity of functional impairments/level of
dependency sufficient to interfere with daily life
If so, to what degree does cognitive impairment add
to stroke related functional impairment
Do any cognitive impairments identified by the
participant or informant interfere with daily life
What impairments are there in other domains such
as social functioning, changes in personality
PODCAST: Stroke/TIA information
Stroke:
Clinical – symptoms, signs, outcome
Imaging - CT and/or MR (send images)
TIA:
Clinical – symptoms, signs (nil new), length,
not a mimic
www.podcast-trial.org
PODCAST: Stroke questions
Event
Stroke / TIA / N/A
Limb weakness
Speech disturbance
Sensory disturbance
Visual field loss
Posterior circulation
Other
Length of symptoms
Severity
Brain imaging
Type
Y/N
Y/N
Y/N
Y/N
Y/N
Describe
ABCD2 bands
ABCD2 / NIHSS score / ?
IS/HTI/ICH/?
www.podcast-trial.org
PODCAST: MI/angina information
Myocardial infarction:
Clinical – chest pain, tachycardia, pale,
sweaty, nausea, duration, …
Biochemistry – enzyme levels (troponin, CK)
ECG – new q waves, ST elevation, … (fax it)
Angina, unstable / stable:
Clinical – symptoms
Biochemistry – enzyme levels
ECG – no new q wave, ST depression
www.podcast-trial.org
Definitions: Myocardial Infarction
Acute cardiac chest pain
No ST segment elevation
ST segment elevation
Cardiac enzymes not elevated
Elevated cardiac enzymes
Elevated cardiac enzymes
UNSTABLE ANGINA
(including new onset angina,
angina at rest and increasing
angina)
NSTEMI
Non-ST elevation myocardial
infarction
STEMI
ST elevation myocardial
infarction
www.podcast-trial.org
PODCAST: MI questions
Event
UA / NSTEMI / STEMI
Chest pain
SOB
Sweating
Nausea/vomit
ECG date
ECG changes
Enzyme date
Enzymes
Y/N
Y/N
Y/N
Y/N
Ts inv / ST el / ST dep / Q wave
Trop I/Trop T/CK/CKMB/ND
www.podcast-trial.org
PODCAST: Outcome/SAE questions
SAE preferred term:
Cardiovascular
CNS
Cutaneous
Gastrointestinal
Genito-urinary
Haematological
Immunological
Musculoskeletal
Respiratory
Other
AF/ bradycardis/…
Agitation/ anxiety/…
Bullous/ eczema/…
Abdo pain/ colitis/…
Sex dys./ incont./…
Anaemia/ agran/…
Anaphylactic/…
Arthritis/…
Bronchospasm/…
www.podcast-trial.org
PODCAST: Outcome/SAE questions
SUSAR
If fatal, cause
Y/N
IS,
IHD, PAD, VTE, other vasc, non vasc, major
bleed
date
www.podcast-trial.org
Adjudication, cognition &
dementia
Any questions?
ECRF and data entry
Sandeep Ankolekar
How many forms?
Patient Details
Participant
Telephone screening
Baseline (randomisation)
1,2,3 month follow-up (intensive groups only)
Clinic follow up: 6, 18,30 months
Telephone follow up: 12,24,36
Serious Adverse Event/Outcome
Informant
Baseline
Clinic follow up- 6,18,30 months
Telephone follow up - 12,24,36 months
ISRCTN47823388
Patient Details Form
Patient Details
ISRCTN47823388
http://www.podcast-trial.org/
ISRCTN47823388
PODCAST Database Entry
ISRCTN47823388
Data Entry
Drop Down Lists
Buttons
Yes/No Answers
Score: 1-7
Age calculator
Dates
Medications
Rankin Scale
CT scan results
Dates (date, month and year)
Drop down list
Numerical values entry (will have background
validation)
Free text entry
Screening
ISRCTN47823388
Screening
ISRCTN47823388
Screening
ISRCTN47823388
Vascular territory
Orange : Anterior (ACA and MCA)
Blue: Posterior (PCA, Basilar, Vertebral)
CT Reports
Anterior circulation
Territories:
MCA (Middle cerebral artery), ACA
Regions: Frontal lobe, basal ganglia
Posterior circulation
Territories:
PCA (Posterior cerebral artery),
Basilar artery, vertebral artery
Regions: Occipital lobe, cerebellum, brainstem,
medulla, pons, midbrain, thalamus
If in doubt: Ask
Screening
Screening: modified Rankin Scale
No symptoms at all.
0
No significant disability despite symptoms;
able to carry out all usual duties and activities.
1
Slight disability; unable to carry out all
previous activities, but able to look after own
affairs without assistance.
2
Moderate disability; requiring some help, but
able to walk without assistance.
3
Moderately severe disability; unable to walk
without assistance and unable to attend to
own bodily needs without assistance.
4
Severe disability; bedridden, incontinent and
requiring constant nursing care and attention.
5
Screening: Cognition
Screening: Cognition
PODCAST: Check your answers!
Failed screening
Successful screening
Baseline Form
Baseline Form
ISRCTN47823388
Baseline Form
Patient Details
Risk Factors/Past Medical History
Index Stroke Presentation
Post screening lipid profile
NIHSS
Cognitive Assessments
Addenbrooke’s
cognitive examination
Trail making Test
Stroop Test
TICS-M
Other functional assesments (mood, rankin,
EUROQOL)
Baseline Form
Baseline form: Drug & doses
Baseline form: Submission
1 / 2 / 3 month clinic forms
1 / 2 / 3 month clinic forms
Medications history
If there is a change in medications since last
review
Post review medications
Participant Clinic follow ups
6, 18, 30, … months:
Similar to baseline form
In addition will ask if the patient has had any
outcome/serious adverse events
Participant Telephone follow ups:
12, 24, 36, … months
Telephone instrument for cognitive status
Functional status questions
In addition will ask for outcome events/SAEs
Informant Baseline/Clinic follow ups
Baseline, 6, 18, 30, … months:
Outcome events/ SAEs for the patient
Disposition of the patient
IQCODE
Informant telephone follow ups:
12, 24, 36, … months
IQCODE
SAE/Outcome events for the participant
Help with filling the forms
ISRCTN47823388
Within PODCAST Website:
Videos
ACE-R, IQCODE
Practice
Stroop
Frequently
Asked Questions (FAQs)
Demo Website (demoinv1 nottingham 8888)
Paper Forms
Contact list
Working Practice Documents (WPDs)
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PODCAST: Imaging definition &
upload
Sandeep Ankolekar
Tanya Jones
Introduction
Importance of CT in classification of stroke
Classification of stroke type
Type
of stroke
Compatibility with presenting stroke
Mass effect
Cerebral atrophy
White matter disease
Previous stroke
CT scans
Usually don’t diagnose stroke (clinical)
Useful in determining type of stroke
Ischaemic
Haemorrhagic
CT scans in ischaemic strokes can be normal early
after onset or with very small lacunar strokes
(normal scan does not exclude stroke)
Haemorrhagic strokes always abnormal if done
acutely / sub-acutely
Give other information e.g atrophy
Neuroimaging within 10 days of index stroke
(inclusion criteria)
Neuroimaging details
Date of first head scan after index stroke.
Type of scan?
Please complete with regards to the index
stroke head scan using radiology report.
/
/
CT
MRI
Normal
Other/old lesions not
explaining Symptoms
Ischaemic Stroke with HT
Ischaemic Stroke without HT
Primary Intracerebral
Haemorrhage
Other (e.g. Tumour, Abscess)
Is the lesion compatible with the presenting
stroke?
Is there evidence of mass effect?
Yes
No
Yes
No
Is there evidence of cerebral atrophy?
Yes
No
Is there evidence of periventricular or white
matter lucency?
Is there evidence of previous stroke?
Yes
No
Yes
No
CT scan- lesion
Choose ‘normal’ if…
‘Normal
scan’
‘Normal for age’
‘no intracranial abnormalities’
Choose ‘old/other lesions not explaining
symptoms’
lesion
on the wrong side
or if only old strokes, atrophy and white matter
change mentioned
Neuroimaging details
Date of first head scan after index stroke.
Type of scan?
Please complete with regards to the index
stroke head scan using radiology report.
/
/
CT
MRI
Normal
Other/old lesions not
explaining Symptoms
Ischaemic Stroke with HT
Ischaemic Stroke without HT
Primary Intracerebral
Haemorrhage
Other (e.g. Tumour, Abscess)
Is the lesion compatible with the presenting
stroke?
Is there evidence of mass effect?
Yes
No
Yes
No
Is there evidence of cerebral atrophy?
Yes
No
Is there evidence of periventricular or white
matter lucency?
Is there evidence of previous stroke?
Yes
No
Yes
No
CT scan: Ischaemic stroke, HT
Neuroimaging details
Date of first head scan after index stroke.
Type of scan?
Please complete with regards to the index
stroke head scan using radiology report.
/
/
CT
MRI
Normal
Other/old lesions not
explaining Symptoms
Ischaemic Stroke with HT
Ischaemic Stroke without HT
Primary Intracerebral
Haemorrhage
Other (e.g. Tumour, Abscess)
Is the lesion compatible with the presenting
stroke?
Is there evidence of mass effect?
Yes
No
Yes
No
Is there evidence of cerebral atrophy?
Yes
No
Is there evidence of periventricular or white
matter lucency?
Is there evidence of previous stroke?
Yes
No
Yes
No
CT scan: Ischaemic stroke, no HT
Haemorrhagic Transformation of
Infarction (HTI)
ISCHAEMIC STROKE MINOR
BLOOD =
ISCHAEMIC STROKE MAJOR
BLOOD =
Haemorrhagic Infarct (HI):
petechial infarction without
space occupying effect.
Parenchymal Haemorrhage
(PH): haemorrhage with mass
effect.
HI1 - small petechiae
HI2 - more confluent
petechiae
PH1 - <30% of the infarcted
area with mild space
occupying effect
PH2 - >30% of the infarcted
area with significant space
occupying effect.
Neuroimaging details
Date of first head scan after index stroke.
Type of scan?
Please complete with regards to the index
stroke head scan using radiology report.
/
/
CT
MRI
Normal
Other/old lesions not
explaining Symptoms
Ischaemic Stroke with HT
Ischaemic Stroke without HT
Primary Intracerebral
Haemorrhage
Other (e.g. Tumour, Abscess)
Is the lesion compatible with the presenting
stroke?
Is there evidence of mass effect?
Yes
No
Yes
No
Is there evidence of cerebral atrophy?
Yes
No
Is there evidence of periventricular or white
matter lucency?
Is there evidence of previous stroke?
Yes
No
Yes
No
CT scans: PICH
Neuroimaging details
Date of first head scan after index stroke.
Type of scan?
Please complete with regards to the index
stroke head scan using radiology report.
/
/
CT
MRI
Normal
Other/old lesions not
explaining Symptoms
Ischaemic Stroke with HT
Ischaemic Stroke without HT
Primary Intracerebral
Haemorrhage
Other (e.g. Tumour, Abscess)
Is the lesion compatible with the presenting
stroke?
Is there evidence of mass effect?
Yes
No
Yes
No
Is there evidence of cerebral atrophy?
Yes
No
Is there evidence of periventricular or white
matter lucency?
Is there evidence of previous stroke?
Yes
No
Yes
No
CT scan: Brain metastasis
CT scan: Abscess
CT reports: The result of the scan?
Choose ‘Ischaemic Stroke - no blood’ if….
Do not choose this if words like ‘old’, ‘mature’, go
with the words ‘infarct’ or ‘hypodensity’
‘hypodensity’, ‘infarct’, ‘infarction’, ‘low attenuation’
+/- ‘acute’,‘recent’, ‘subacute’, ‘patchy’, ‘subtle’
Instead choose ‘no lesion explaining symptoms’
Choose ‘Ischaemic stroke - minor blood’
If any of the top descriptions plus ‘haemorrhage’, ‘blood’,
‘bleeding’, ‘haemorrhagic transformation’, ‘petechial
haemorrhage’
major blood / PH1,PH2 should have been excluded - but if
‘large’/’significant’ blood, then ask.
CT reports - the result of the scan?
Choose ‘OTHER’ if…
Tumour
(most common), abscess, cysts etc
If
there is something mentioned in the scan that
you don’t understand or you are not sure if it
explains the presentation, ask…
If
they mention a stroke AND another lesion,
ask…
Is the lesion compatible with
presentation?
Date of first head scan after index stroke.
Type of scan?
Please complete with regards to the index
stroke head scan using radiology report.
/
/
CT
MRI
Normal
Other/old lesions not
explaining Symptoms
Ischaemic Stroke with HT
Ischaemic Stroke without HT
Primary Intracerebral
Haemorrhage
Other (e.g. Tumour, Abscess)
Is the lesion compatible with the presenting
stroke?
Is there evidence of mass effect?
Yes
No
Yes
No
Is there evidence of cerebral atrophy?
Yes
No
Is there evidence of periventricular or white
matter lucency?
Is there evidence of previous stroke?
Yes
No
Yes
No
Is it compatible with the
presentation?
Remember
Left
sided lesions cause right sided symptoms and
vice versa
Bear in mind…
If
acute stroke evident say yes
If normal scan say yes (as long as clinical
diagnosis remains stroke)
If old strokes/other lesions ask!
Mass Effect
Date of first head scan after index stroke.
Type of scan?
Please complete with regards to the index
stroke head scan using radiology report.
/
/
CT
MRI
Normal
Other/old lesions not
explaining Symptoms
Ischaemic Stroke with HT
Ischaemic Stroke without HT
Primary Intracerebral
Haemorrhage
Other (e.g. Tumour, Abscess)
Is the lesion compatible with the presenting
stroke?
Is there evidence of mass effect?
Yes
No
Yes
No
Is there evidence of cerebral atrophy?
Yes
No
Is there evidence of periventricular or white
matter lucency?
Is there evidence of previous stroke?
Yes
No
Yes
No
CT scan: Mass effect
Lateral
ventricle
shifted
CT scan: Mass effect
Chose yes if…
‘mass
effect’, ‘midline shift’, ‘ventricular
effacement’
If it says these are not present or there is no
mention of them, chose no.
Please note that hydrocephalus is NOT mass
effect.
CT scan: Mass effect vs
hydrocephalus
Cerebral Atrophy
Date of first head scan after index stroke.
Type of scan?
Please complete with regards to the index
stroke head scan using radiology report.
/
/
CT
MRI
Normal
Other/old lesions not
explaining Symptoms
Ischaemic Stroke with HT
Ischaemic Stroke without HT
Primary Intracerebral
Haemorrhage
Other (e.g. Tumour, Abscess)
Is the lesion compatible with the presenting
stroke?
Is there evidence of mass effect?
Yes
No
Yes
No
Is there evidence of cerebral atrophy?
Yes
No
Is there evidence of periventricular or white
matter lucency?
Is there evidence of previous stroke?
Yes
No
Yes
No
CT scans: Cerebral Atrophy
CT scans: Atrophy
Answer yes if…
“Atrophy” or “involutional change”
If no mention or ‘age appropriate’ and the
patient is under 60 say no
Periventricular ischaemia
Date of first head scan after index stroke.
Type of scan?
Please complete with regards to the index
stroke head scan using radiology report.
/
/
CT
MRI
Normal
Other/old lesions not
explaining Symptoms
Ischaemic Stroke with HT
Ischaemic Stroke without HT
Primary Intracerebral
Haemorrhage
Other (e.g. Tumour, Abscess)
Is the lesion compatible with the presenting
stroke?
Is there evidence of mass effect?
Yes
No
Yes
No
Is there evidence of cerebral atrophy?
Yes
No
Is there evidence of periventricular or white
matter lucency?
Is there evidence of previous stroke?
Yes
No
Yes
No
CT scan: Periventricular white
matter lucency
CT scan: Periventricular white
matter lucency
Choose yes if…
“periventricular white matter lucency”,
“leukoaraiosis”, “white matter disease”,
“white matter change”, “small vessel
disease”, “small vessel ischaemia.”
If the report says these are absent or not
mentioned answer no.
CT scan: Previous strokes
Choose yes if…
“old”, or “mature” infarcts
If they are not mentioned, or are noted to be
absent absent, answer no.
Previous strokes
Date of first head scan after index stroke.
Type of scan?
Please complete with regards to the index
stroke head scan using radiology report.
/
/
CT
MRI
Normal
Other/old lesions not
explaining Symptoms
Ischaemic Stroke with HT
Ischaemic Stroke without HT
Primary Intracerebral
Haemorrhage
Other (e.g. Tumour, Abscess)
Is the lesion compatible with the presenting
stroke?
Is there evidence of mass effect?
Yes
No
Yes
No
Is there evidence of cerebral atrophy?
Yes
No
Is there evidence of periventricular or white
matter lucency?
Is there evidence of previous stroke?
Yes
No
Yes
No
Most important of all
If you don’t understand the scan report,
please ask a doctor
The more you do, and the more you ask you
more you will get used to the terminology
Imaging Upload
PODCAST – CT Scans
Upload Methods
Transfer System for Scans
Acceptable methods:
CD – to upload or send
Film
No facility for:
Uploading directly from PACS
Using the N3 highway (National Database
Spine)
PACS team/Radiology Request
Dicom format plain CT or MRI scans only
No:
Localizers
Scouts
Protocols
Dose reports
Viewing Software
Methods Of Transfer
Uploading to Podcast Website at your centre.
Posting an encrypted CD.
Posting an anonymised CD.
Posting hard copy film.
Uploading to Podcast Website
Two methods:
Using JAVA applet – drag folder containing
the scans into the upload box.
o
o
▲
o
Maximum images per folder approx 50
Process can be repeated
Not Using JAVA applet – the screen will
show a Browse button to select each image
individually
Screen upload can be repeated for however many images
need uploading.
Investigator Screen
Upload Files Screen
Upload images Files using Java Applet
Drag Dicom folder from CD
Confirmation of upload
Upload Files Screen – showing Files uploaded
Upload Files – Not using Java Applet
Upload - Not using Java Applet
Browse and Select Files
Upload – maximum of 25 files but repeatable
Upload confirmation
Posting Scans
All posting methods must use a secure courier where
a signature is required upon receipt.
Send an encrypted CD. Password needs to be
communicated separately.
Send in an anonymised CD. We will need email or
written confirmation that this method is consistent
with your Trust’s policy of sending electronic data.
If none of the above methods are available, we can
accept hard copy film. Please use a hard sided
envelope.
Web Security
To ensure that the CT upload is for the correct patient
the upload process requires most fields to remain in
the dicom header. (Name /ID is not one of the
required fields)
The upload process will encrypt the data and
anonymise the following fields in the dicom header:
Patient data:
Name, ID, Address, and Date of Birth.
Hospital data:
Hospital name and address, Physician
name and address
Success!
If your images have uploaded successfully
from your centre then you will receive an
email to confirm this.
(You will have already seen confirmation messages
on the Upload screen)
An email will confirm that any CDs/Films sent
to the Podcast office have arrived safely.
Imaging definitions & upload
Any questions?
PODCAST: Site responsibilities
and trial files
Sally Utton
The local centre’s role /responsiblities
Obtain and maintain local approvals
Ensure adherence to GCP/ICH standards
Ensure all staff are trained & remain trained
Ensure that site files are current
Recruit patients: 1-2 per month
Complete all patient forms online within the
time line
What makes a good Local Centre
Commitment to trial (PI, time, staff, hospital)
Access to team
Research
Coordinators
Experience in doing trials
Commitment to recruit consistently
Fax/record and complete data in a timely
manner
Be prepared for monitor visits to check
records
Record Keeping
Documents individually and collectively
permit the evaluation of the trial and the
quality of the data produced.
Documents serve to demonstrate the
compliance of the investigator, sponsor and
monitor with the standards of GCP and all
applicable regulatory requirements
What do we mean by records?
Site file
Case record form
Patient trial files
Logs
Medical notes
Site File
Contact List
Study Documentation
Regulatory Approved Documents
Signed Agreement
Study Medication/Laboratory
SAE/SUSAR Report
Monitoring Reports
Miscellaneous
Case Record Form
Accurate and legible
Changes
Consistent with source documents
Document all visits/tests
Document and explain all deviations
Patient medical notes
Stickers
Copy of PIS/consent
GP letter
Trial medication
Adverse/serious events
PATIENT NUMBER:
This patient has been participating
in the ENOS study.
MREC/01/4/046.
Please retain these notes until
31/12/2021
Storage of records
Confidential
Archiving
PODCAST is sponsored by The University of
Nottingham
MHRA Inspection
The Clinical Trials Directive 2001 provides
the framework for inspection requirements
Audit
Inspection
Visit
Outcome
Note: PODCAST is not a CTIMP and should
not come under MHRA scrutiny. But GCP still
applies and we should practice many of the
CTIMP practices
MHRA findings:
Delegation/signature logs
What
is delegated
Evidence that staff have been trained
Evidence that staff have read sponsor SOPs
and trial WPDs
Version control for consent form and PIS
…
Conclusion
A simple and accurate paper trial is essential
to demonstrate the validity and integrity of
study conduct
Site responsibilities
Any questions?
PODCAST: Site monitoring
Lynn Stokes
Purpose of monitoring
To verify that:
The rights and well being of human subjects
are protected
The reported trial data are accurate,
complete, and verifiable from source
documents
The conduct of the trial is in compliance with
the protocol, GCP and regulatory
requirements
Types of monitoring in clinical trials
Approaches to trial monitoring should be
appropriate to the trial and should be
proportionate to the:
Size
Complexity
Risks
associated with the trial
Trial Oversight Committees
The funding body or sponsor may specify
particular oversight arrangements, but even
if they do not, some form of oversight is
strongly recommended for all trials.
Commonly employed oversight committees:
Trial Steering Committee (TSC)
Trial Management Committee (TMC)
Data Monitoring Committee (DMC)
Trial Steering Committee (TSC)
Provide overall supervision of the trial
Ensure that trial is being conducted
according to GCP and the relevant
regulations
Agrees the trial protocol and any protocol
amendments
Provides advice to the investigators on all
aspects of the trial
Have independent members, including Chair
Decide on continuation, change or
termination of the trial
Trial Management Committee (TMC)
Composition:
Individuals responsible for the day-to-day
management of trial
Chief
investigator, trial manager, statistician,
coordinators, data manager
Roles:
Monitor all aspects of the conduct and
progress of the trial
Ensure that the protocol is adhered to and
take appropriate action to safeguard
participants and the quality of the trial itself
Data Monitoring Committee (DMC)
Roles:
Review accruing unblinded trial data
Assess whether there are any safety issues
that participants’ should be informed of
Assess whether trial should continue or not
Be independent of investigators, funder &
sponsor
Make recommendations to the TSC
Coordinating centre monitoring
Day-to-day monitoring should be carried out
by those responsible for running a trial
Typically includes following checks:
Data consistent with adherence to protocol
CRF’s are only completed by authorised staff
No key data are missing
Data appear to be valid (range, consistency)
Review of recruitment rates, withdrawals and
losses to follow-up overall and by site
Central monitoring, 1
Central monitoring is defined as:
‘Centralised procedures for quality control of
trial data’
These may include:
Statistical checks over time and across
different data items to identify unusual data
patterns within and across centres
External validation of selected data items
Central monitoring, 2
Central collection of copies of radiographs,
scans, or pathology reports which permit the
study coordinators to verify independently
key criteria for eligibility or outcome
With the participant’s consent, national vital
statistics services may be used for the
corroboration of the existence of the subject
or the verification of mortality outcomes
Central monitoring, 3
Using stroke registers to confirm information
on eligibility or outcomes.
Can be used to identify sites or contributors
that may be deviating from the protocol.
Participant consent may be confirmed by the
collection of a copy of the consent form at
the coordinating centre, with measures to
ensure confidentiality.
On-site monitoring
On-site visits provide the opportunity to:
Educate staff about the trial
Understand the protocol and trial procedures
Verify that the staff at the site have access to the necessary
documents to conduct the trial
Confirm that required pharmacy and laboratory resources are
in place
Check adherence to the protocol and GCP
Verify selected data and SAEs recorded in CRFs as compared
with data in clinical records to identify errors of omission as
well as inaccuracies
Confirm that written consent was obtained
If copies of the form are not held in the coordinating centre
Source documentation, 1
All electronic data should be supported by
source documentation.
Source documentation is any form of
documentation on which the initial
information is written, regardless of what it
has been written on.
All forms of source documentation will need
to be filed and retained.
Source documentation, 2
The following are all considered forms of
source documentation:
Medical
records
Nursing records
Drug chart
Paper CRF’s
CT/MRI reports
Diagnostic investigational reports
Findings from site monitoring visits
Document Control - Version Numbers
Stroke onset time not clearly documented in
medical records
Absence of documents
Lack of delegation of responsibilities
Site files non-existent/not up to date
Inconsistent dates and times
Limited written entries in medical records
Failure to report SAE’s, SUSARs
Site Monitoring
Any questions?
PODCAST: Data Monitoring
Philip Bath
PODCAST: Data Monitoring, 1
Composition:
TBA (Chair)
Prof Jan Staessen (Leuven)
Hypertension
Dr Chris Weir (Edinburgh)
Statistician
Supported by:
Ms Cheryl Hogg (Nottingham)
PODCAST
statistician
PODCAST: Data Monitoring, 2
Roles:
Safeguard interests of participants
Assess safety and efficacy
Monitor trial conduct
Respond to any investigator concerns
Consider requests for release of data
Advice potential funder(s) of main phase
Perform extra interim analyses as needed
Consider results of any other studies/trials
Recommend: continuation, change or stop
PODCAST: Data Monitoring, 3
Modus operandi:
6 monthly assessments of data
Data tables prepared by trial statistician
Teleconference (or meeting)
Open
then closed session
Minuted
Closed session confidential
Report to Chair of TSC (John O’Brien)
cc
CI (PB)
Have a Charter and hold a contract with
sponsor
PODCAST: Data Monitoring, 4
Trials status:
Timelines
Recruitment
Patients,
centres, patients/centre
Data completeness, quality
Patients:
Baseline features
Balance
by treatment groups
Outcomes
PODCAST: Data Monitoring, 5
Data:
Dementia
Cignitive impairment
Vascular events
Stroke
(ischaemic and haemorrhage), MI,
vascular death
Death
SAEs
Data Monitoring
Any questions?
PODCAST: UK Investigator
meeting - Close
Philip Bath
Many thanks for attending
An important and interesting, if not
challenging, trial
If you are ready to start
Lynn
If you have submitted SSIs etc
Keep
will arrange a start-up visit
Lynn up to date with progress
If you and your PCTs are interested in joining
Please
submit SSI
Close, many thanks again
Good luck and have a safe
journey home