setting up clinical trials
DESCRIPTION
Setting Up Clinical Trials. Cynthia M. Otto, DVM, PhD DACVECC Associate Professor of Critical Care. What is a clinical trial?. A prospective evaluation in which the factor of interest is controlled by the investigator RANDOMIZATION Provides evidence of causality - PowerPoint PPT PresentationTRANSCRIPT
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Setting Up Clinical TrialsCynthia M. Otto, DVM, PhD DACVECC
Associate Professor of Critical Care
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What is a clinical trial?• A prospective evaluation in which the
factor of interest is controlled by the investigator–RANDOMIZATION
• Provides evidence of causality• Gold standard for clinical decisions
about treatment efficacy
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Clinical Trial Subjects• Classically understood to be
studies in humans• Veterinary Clinical Trials are
studies in Client-owned animals
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Veterinary Clinical Trials• Test Drugs or Devices• Initiated by
– Company• Human Pharma• Veterinary Pharma
–Investigator
Why Human Pharma?
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Clinical Trials in Spontaneous Disease of Companion Animals
• Highly clinically relevant models– Heterogeneity, diversity– Spontaneous disease treated after clinical signs present– Directed and supportive care provided– Outcome = Survival
• Takes advantage of advanced critical care facilities• Cost effective• Success may be more likely to predict positive human clinical trials
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Regulatory Requirements for Veterinary Clinical Trials
• Regulatory Agencies for Industry Sponsored Trials– FDA
• Reviews safety data and approves clinical trial design• Approval required for animal drugs tested in animals
– Center for Veterinary Medicine (CVM)– USDA (governs testing of biologicals)
•Currently no government oversight of:–Investigator-initiated Veterinary Clinical Trials
–Human Pharma conducting clinical trials in pet animals with drugs for human use.
Uncharted waters
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Requirements for Veterinary Clinical Trials
• Patient Safety is Paramount!• Regardless of who initiates
– informed client (owner) consent• Safeguards
– Good Clinical Practice (GCP) compliance• Guidance document for the design and conduct of
all clinical studies– Institutional approval (IACUC, IRB)
• Independent board to review protocols and ensure patient safety
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Phases of Clinical Trials• Phase I
–Safety – must be performed prior to any clinical trial in humans or client owned animals
–Pharmacokinetics–Pharmacodynamics
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Phases of Clinical Trials• Phase II
–Efficacy –Limited
enrollment– may or may
not be controlled
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Phases of Clinical Trials• Phase III
–Large scale–Comparison of Drug/device –Randomized with controls
• Phase IV–Large scale field trials–Post marketing
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Scenario 1• Your department is approached by a
Pharmaceutical Company, CatsRUS to test a new drug CR348 for the treatment of feline asthma
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Can You Participate?• How many asthma cats do you see in
month?– Primary cases– Referral cases– Emergency cases
• Do you have the staff to conduct a clinical trial . . . And are they interested?
• Do you have experience with clinical trials?
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Can You Participate?• Do you have the space?
– Drugs– Binders– Mailers– Samples collected– Office space for
monitors/FDA inspections*• Do you have the time?
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What do you do?• Confidentiality agreement
– A document clearly stating your obligations regarding the information shared with you
– Defines what is confidential– Who can you share information with– How long you are obliged to maintain
confidentiality– Do you have legal counsel to review this?
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The Protocol–Review the protocol carefully–Based on the specifics of what is
expected• Do you have the necessary caseload• Do you still have the interest• Do you still have the time• Do you still have the staff• Do you have still the space• Are you comfortable with the protocol
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The Protocol• Protocol Deviations
– Errors in data collection– Alteration in treatment– Missed timepoints– All lead to loss of $, time and potentially case dataIt makes FDA unhappy!
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What do you do?• Contract or sponsored research
agreement • Defines Scope of Work (Protocol)
– approved by the CVM at the FDA • Principal Investigator
– The person RESPONSIBLE• Performance Period• Record Keeping and Access
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What do you do?• Contract or sponsored research
agreement (cont.)• Cost and Payment• Confidential Information• Publications• Patents and Inventions• Use of the Institution or Sponsor’s Name
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Expectations• You will
– Enroll a specified number of cases– In a specified period of time– You will be GCP compliant
• Provide complete and accurate data• Report protocol deviations or adverse events • You will handle the test material appropriately
– You will work with the study monitor– Provide a final report
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Expectations• They will provide
– GCP training– The protocol– Client consent and regulatory assurances– Test agent– Data capture forms– Study monitor– Incentives/payment
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Scenario 2• A faculty member would like to test the
efficacy of the new human asthma drug “BreatheEZ” in cats with asthma
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Investigator Initiated Trial• Determine the safety of the material• Obtain the test material*• Design the trial• Provide Informed Client Consent• Regulatory approval*• Secure funding• Recruit and enroll cases• Collect and Analyze data• Write the paper!
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Designing a Trial• What is your question?
– Standard of care– Placebo
• What is your population?– Inclusion– Exclusion
• What is your clinical outcome?
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Designing a Trial• Sample size – power
–Outcome • Tracking subjects
– Eligible– Randomized– Enrolled– Completed Study
• Intent to treat
population
eligibleexcluded
randomized
control treatment
analyzedWithdrawn
LTF
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Limiting Bias• Randomization
– Equal chance of being in treatment vs control group
– Baseline data• Blinding or masking
– Prevents differences in interpretation of outcomes or data collection between groups
• Placebo controlled
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Regulations• Institutional Animal Care and Use
Committees?• Institutional Review Board?
– Privately owned animal protocols• Center for Veterinary Medicine?
– Regulates manufacture and distribution of additives and drugs for animals
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Informed Consent• Why participate?
– Participation is voluntary • Purpose of the study
– In clear lay language– A Clarification that the drug/device is investigational
• The duration of the study • The expectations of the owner and pet
– Clarify experimental components vs standard of care– number of visits required, additional procedures
required– requirement for a necropsy if the animal dies
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Informed Consent• The possible risks or discomfort to the pet
– If there is no safety data in the population under study, this should be clearly stated.
– Include a statement that the research may involve risks that are currently unforeseeable.
• The possible benefits– “Your pet may not benefit from participation in
this study. However, we may learn additional information about your pet’s disease which may affect how your pet is treated.”
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Informed Consent• The alternatives to participation
– Treatment alternatives for the condition being investigated (eg supportive, palliative care)
• A description of any compensation – Financial incentives or treatments costs covered– “Complications may happen during the study
treatment because of your pet’s disease, as a result of treatment for the disease, or for unrelated reasons. You are responsible for all costs of tests and treatments except those specifically mentioned as being included in the study.
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Informed Consent• Detailed explanation of the owner’s financial
responsibility• Impact of early termination of participation or of
the study – Define when the overall study is to end.– Explain what events could lead to early study closure. – Note that the owner can elect to withdraw his pet from
the study at any time.– If early withdrawal could expose the pet to medical
risks, describe and how those risks will be minimized or prevented.
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Other considerations• Hospital Impact
– Affect on caseload• Outside recruitment?
– Affect on other services• Anesthesia, radiology etc
– Nonmedical resources?• Faxing, copying etc
– Cost recovery?• Overhead – cost of doing business
• Public impact?
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Why Participate in Clinical Trials?• Advance animal health• Opportunity for clients• Intellectually stimulating• Challenging• Income source
– Pharmaceutical funding– Grant funding– Recruit new cases
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Why Trials Fail• Inadequate recruitment• Poor data collection
– Quality– Quantity
• Poor design• Inadequate budget• Insufficient investigator benefit
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Study Design• What is your question?
– Standard of care– Placebo
• What is your population?– Dogs with parvovirus
• What is your clinical outcome?– Survival
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Sample Size• How many cases needed to show an
effect (or confirm NO EFFECT)• Power – 80% chance that the lack of effect
is real• Survival rate:
– 92%– 324 cases needed
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That’s a lot of puppies!!
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Need units, not #
Wrong date format
Missing date
Inconsistent with each otherErrors!
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Missing DataCase #VHUP # dog name WBC Temp
13 699495 Champ Day 1 0.71 1043 mos mixb Day 2 0.73
Day 3 1.19 101Day 4 5.82 101
18 699721 Killer Day 1 0.17 103Day 2 1.46 103Day 3 5.75 103Day 4 17.1 101
9 699286 Sheba Day 0 0.24 1072 mos? rotw Day 1 0.25 103
Day 2 101Day 3 0.12 euthanized
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Where did all the trauma go???
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Too busy to enroll cases
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No Benefit to Enroll?
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Data Collection
Time for the next study sample!!
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Data Quality
Oh . . . you are supposed to add the calcium to the sample before you run it?
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Funding• I didn’t think it would cost so much• I didn’t think to include nursing time• I need to recruit cases? Advertising?• I was turned down because of no track
record
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Successful Trials• Patient Recruitment• Incentives for Participation• Cost recovery
– TIME!!– Resources
• High quality data– Good Clinical Practice (GCP)– Dedicated staff
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Structuring for Success• Trained personnel
– Study Coordinators– Data collectors– PI’s role limited to expert clinical advice
• Culture of Clinical Investigation• Appropriate Budget• Establishing a Reputation
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VCIC Structure Director
Clinical trial coordinator
Clinical trial coordinator
Clinical trial coordinator
Study coordinator
Study coordinator
Study coordinator
PI PI PI PI PI PI
Data collector
Data collector
Data collector
Data collector
Data collector
Data collector
Data collector
Data collector
Data collector
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VCIC Structure
Director(s)Who: Standing Faculty up to 50% timeRole: Identification of PIs for potential compounds
Reconciles issues regarding trialsIdentification of faculty generated protocols (discovery/PII)Facilitates trial management within hospital/UniversityProtocol development related to hospital impact
Clinical Trials Coordinator Who: Veterinarian (CVT) with clinical trials trainingRole: Working knowledge of all trials, can stand in for PI if needed
Protocol development with PIStudy coordinator and data collector management
(recruiting, training etc, 1 vet for up to 5 coordinators)Quality control on data management and inputAnimal Use Protocol developmentPlacebo/drug compounding protocolsQuarterly reports on each trial
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Study coordinatorWho: Nurse (vet/human) with CT trainingRole: Manage trial recruitment
Manage Trial inquiriesInitial screening/apptsData managementCompliance managementCoordinate trial supplies
PIRole: Provide clinical expertise
Protocol Initial patient assessment
Data collectorWho: AHT
Role: Animal and client contact
Data collectorWho: AHT
Role: Animal and client contact
Data collectorWho: AHT
Role: Animal and client contact
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Roles for VCIC: Study Design
• Refining the question
• Determining the target population
• Determining the outcome
• Determining the sample size necessary to
answer the question
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Budgeting
• Hospital services
• VCIC nursing support
• Recruitment
• Indirect costs – 26%
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Clinical Trial Nursing Support
• Study binders– Development
– Maintenance
• Tracking databases– Development
– Maintenance
• Client communication
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Nursing Support
• Paperwork– IACUC– Consent Form– Data collection forms
• Data Collection– All animal and owner contact – Scheduling protocol appointments– Owner follow-up– Referring veterinarian follow-up
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Recruitment• Clinical Trials Nurses• Current Patients or Employee-owned
–Flyers and emails• Direct to Owner
–Print, Postcards, Radio• Referring Veterinarians
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End Result
‘Clean’ data – GCP standardsMinimal missing data
Minimal losses-to-follow-up
THE ANSWER TO THE QUESTION!
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THE ANSWER TO THE QUESTION!
Benefits Global Animal Health
+ Benefits to Human Health
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Enrollee Benefits
• Individual animal benefit– Direct benefit from an intervention– Access to care
• Owner benefit– Easy & immediate access to advice– Relief of financial constraints– Knowledge of larger benefit to global animal and
human health
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Investigator Benefits
Academic success
with
Minimized effort
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Academic SuccessInvestigator initiated study
Publish study results
Present study results
Sponsor initiated study
Publish study resultsPresent study results
and/orPublish ancillary study resultsPresent ancillary study results
and/orCompensate PI research fund
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Hospital Success• 456 patients screened• 14 trials
62% were NEW clients!
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Hospital SuccessDemographic Information for Clinical Trial Patients
80%76%
37%
87%
79%
10%
79% 79%75%
55%
25%
81%
90%
11%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
OSA(
03)
OSA(
05)
OA(1
1)
LSA(
19)
FIV(2
0)
LSA(
23)
OSA(
01)
BPH(
02)
SCC(
18)
Card
io(17
)
Ceph
alex
in(1
3)
HSA(
12)
SM(0
9)
Diab
etes
(7/8
)
Disease Process Being Studied
% o
f Clie
nts
New
to V
HUP
Series1NEWClients
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Hospital SuccessVHUP Returning Client Status
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
OSA(03
)
OSA(05
)OA(11
)
LSA(19
)
FIV(20
)
LSA(23
)
OSA(01
)
BPH(02
)
SCC(18
)
Cardi
o(17)
Cepha
lexin(
13)
HSA(12
)SM
(09)
Diabete
s(7/8)
Disease Process Being Studied
% o
f Cl
ient
s Re
turn
ing
to V
HU
P af
ter
Tria
l Pa
rtic
ipat
ion
Series1
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Hospital Success
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Hospital Success
Visits by Clinical Service
1%2%3%3%
3%3%
4%
4%
5%
6%
6%
10% 12%
38%
Emergency
Medicine
Oncology
Orthopedic
Dermatology
Soft Tissue
Clinical Investigations
Ophthalmology
Dental
Radiation Therapy
Cardiology
Exotics
Neurology
Genetics
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Potential Benefits from Veterinary Clinical Trials
• Intellectually stimulating• Disease is not being created in
animals• Animals with disease receive
treatment in your hospital– that might not otherwise be available
• New reagents, therapeutics available to companion animals
• Pets win, clients win, science wins
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10th Anniversary Tribute to the Canine Search and Rescue (SAR) Community
of 9/11
Working Dog ConferenceSeptember 7-9, 2011
www.findingoneanother.org