Dr. Neha Vala Senior Manager-PV Lambda …...Dr. Neha Vala Senior Manager-PV Lambda Therapeutics...
Transcript of Dr. Neha Vala Senior Manager-PV Lambda …...Dr. Neha Vala Senior Manager-PV Lambda Therapeutics...
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Dr. Neha Vala
Senior Manager-PV
Lambda Therapeutics Research Ltd
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� Public and media pressures
� Exactly what is a ‘signal’?
� How is a signal identified?
How do we perform signal management� How do we perform signal management
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The populations exposed to any drug during thepost authorisation period differ from thosestudied during the development of the medicinalproduct.
In daily practice…..In daily practice…..
- Patients are not selected
- Large and diverse populations
- Therapy duration vary
- Underlying diseases/concomittant medicalconditions
- Poly pharmacy
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� New information on the benefits and risks ofany drug may be generated at any time aftermarketing approval has been granted
It is importantIt is important
� To continuously monitor the safety of anymedicinal product during its market life;
� To continuously assess its risk-benefit profilein order to guarantee patient’s safety.
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NEWNEWNEWNEW
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Information that arises from one ormultiple sources (includingobservations and experiments), whichsuggests a newnewnewnew potentiallypotentiallypotentiallypotentially causalcausalcausalcausalassociation,association,association,association, orororor aaaa newnewnewnew aspectaspectaspectaspect ofofofof aaaaknownknownknownknown associationassociationassociationassociation,,,, betweenbetweenbetweenbetween anknownknownknownknown associationassociationassociationassociation,,,, betweenbetweenbetweenbetween anintervention and an event or set ofrelated events, either adverse orbeneficial, that is judged to be ofsufficient likelihood to justifyverificatory action.
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So a Signal requiresSo a Signal requiresSo a Signal requiresSo a Signal requires::::
� an initial evaluationevaluationevaluationevaluation orororor clarificationclarificationclarificationclarification stepstepstepstep totototo determinedeterminedeterminedetermine whetherwhetherwhetherwhether thethethethecase series, less frequently one single case, that has raised attentionwill require further evaluation. Once this step has been completed , thesafety finding becomes a signal which can be verified,verified,verified,verified, refutedrefutedrefutedrefuted ororororremainsremainsremainsremains indeterminateindeterminateindeterminateindeterminate....
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� Information that arises from one or multiplesources (including observations andexperiments)
�Suggesting a new potential causal associationor a new aspect of a known association,
Between an intervention and an event or set�Between an intervention and an event or setof related Events
�Either adverse or beneficial, that is Judged tobe of sufficient likelihood to justifyverificatory action.
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� Pre-clinical data (animal toxicology,pharmacology)
� Clinical trials data (phases I - IV)
� Spontaneous reports (company database,regulatory databases)regulatory databases)
� Published literatures
� Epidemiology/Registries/Prescription eventmonitoring studies
� Competitor data
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Pre clinical Pre clinical Pre clinical Pre clinical developmentdevelopmentdevelopmentdevelopment
ClinicalClinicalClinicalClinicalDevelopmentDevelopmentDevelopmentDevelopment
1st years after1st years after1st years after1st years afterlaunchlaunchlaunchlaunch
MatureMatureMatureMatureProductProductProductProduct
In vitro studiesIn vitro studiesIn vitro studiesIn vitro studiesChemistryChemistryChemistryChemistryADME*ADME*ADME*ADME*Target Target Target Target
Human studiesHuman studiesHuman studiesHuman studies•Adverse eventsAdverse eventsAdverse eventsAdverse events•Laboratory Laboratory Laboratory Laboratory datadatadatadata
Human studiesHuman studiesHuman studiesHuman studies•Phase Phase Phase Phase IIIbIIIbIIIbIIIb/IV/IV/IV/IV•New New New New indicationsindicationsindicationsindications
Human studiesHuman studiesHuman studiesHuman studies•Adverse eventsAdverse eventsAdverse eventsAdverse events•Laboratory Laboratory Laboratory Laboratory datadatadatadataTarget Target Target Target
receptorsreceptorsreceptorsreceptorsTransportersTransportersTransportersTransporters
In vivo studiesIn vivo studiesIn vivo studiesIn vivo studiesAnimalAnimalAnimalAnimal
datadatadatadata•BiometricsBiometricsBiometricsBiometrics•PKPKPKPK
Animal studiesAnimal studiesAnimal studiesAnimal studiesIn vitro studiesIn vitro studiesIn vitro studiesIn vitro studies
indicationsindicationsindicationsindications
SpontaneousSpontaneousSpontaneousSpontaneouscase reportscase reportscase reportscase reportsPublishedPublishedPublishedPublishedliteratureliteratureliteratureliteratureEpidemiologyEpidemiologyEpidemiologyEpidemiology
datadatadatadata•BiometricsBiometricsBiometricsBiometrics•PKPKPKPK
Animal studiesAnimal studiesAnimal studiesAnimal studiesIn vitro studiesIn vitro studiesIn vitro studiesIn vitro studies
****Absorption, distribution, metabolism, excretion
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� signal detection;
� signal validation;
� signal analysis and prioritization;
� signal assessment;
� recommendation for action; � recommendation for action;
� exchange of information.
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Traditional methods (Qualitative)Traditional methods (Qualitative)Traditional methods (Qualitative)Traditional methods (Qualitative) Data mining methods (Quantitative)Data mining methods (Quantitative)Data mining methods (Quantitative)Data mining methods (Quantitative)
•Review of individual cases(index case or striking casemethod) or case series in a PVGsafety database or in publishedmedical or scientific literature.
•Identify drug-event combinationsthat are disproportional to pooledor overall distribution in thebackground dataset• Does not infer causality only amedical or scientific literature.
•Aggregate analyses of case reportsusing absolute case counts, simplereporting rates or exposureadjusted rates.
• Does not infer causality only ahigher frequency of reporting thanexpected
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Considerations Considerations Considerations Considerations for when for when for when for when a drug a drug a drug a drug event pair is a signalevent pair is a signalevent pair is a signalevent pair is a signal
PatientPatientPatientPatientcharacteristic(s)characteristic(s)characteristic(s)characteristic(s)trend(s)trend(s)trend(s)trend(s)
PharmacologicalPharmacologicalPharmacologicalPharmacologicalPlausibilityPlausibilityPlausibilityPlausibility
ClassClassClassClass EffectEffectEffectEffect
Drug Drug Drug Drug EventEventEventEventPairPairPairPair
SignalSignalSignalSignal
Related Related Related Related similarsimilarsimilarsimilareventseventseventsevents
Chemical Chemical Chemical Chemical naturenaturenaturenature
MOAMOAMOAMOACommonly Commonly Commonly Commonly drug drug drug drug related eventrelated eventrelated eventrelated event
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Signal Detection ProcessSignal Detection ProcessSignal Detection ProcessSignal Detection Process
Signal IdentifiedSignal IdentifiedSignal IdentifiedSignal Identified
(information gathering)
ClinicalClinicalClinicalClinicalTrialTrialTrialTrialDataDataDataData
OtherOtherOtherOtherDatabasesDatabasesDatabasesDatabases(AERS/(AERS/(AERS/(AERS/WHO)WHO)WHO)WHO)
EpidemiologyEpidemiologyEpidemiologyEpidemiology
LiteratureLiteratureLiteratureLiteratureSpontaneousSpontaneousSpontaneousSpontaneous
DataDataDataData
PrePrePrePre----clinicalclinicalclinicalclinicalanimalanimalanimalanimaltoxicology &toxicology &toxicology &toxicology &pharmacologypharmacologypharmacologypharmacology
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CIOMS VIII
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� Unidentified/unlabeledUnidentified/unlabeledUnidentified/unlabeledUnidentified/unlabeled
� Change Change Change Change of frequencyof frequencyof frequencyof frequency
� Change Change Change Change of severityof severityof severityof severity
� New New New New risk factorsrisk factorsrisk factorsrisk factors� New New New New risk factorsrisk factorsrisk factorsrisk factors�Serious, severe, or sustained?
�Who, and therefore how many will be affected?
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� No evidence of a causal relationship
-No action, document
� Insufficient information: Need to continue tomonitor and revisit
-Plan to gather more information-Plan to gather more information
-Targeted follow up questions for spontaneousreports
-Design studies (Pharmacoepidemiologicalstudies, clinical studies, drug interaction studies)
� Milestone reviews- when significant informationavailable
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Strategies include:
� Risk Communications
� Labelling changes
� Requests for safety information
Reclassification of devices� Reclassification of devices
� Recall - monitoring strategies
� Product withdrawal
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