Clinical trials: A Primer
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Transcript of Clinical trials: A Primer
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Clinical Trials: A primer
David L. Graham, M.D.Levine Cancer Institute
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What many people think of clinical trials
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Why do we do this?
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Types of trials
Phase IPhase IIPhase IIIPhase IV
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Phase I trials
How much can we safely giveMay be looking at a new drugCan also new at a new combination of existing drugsWill often include studies of drug eliminationSmall numbers with escalating dosesMain endpoint is dose with tolerable toxicity
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Phase II trials
We know how much to give, does it workWill treat a specific disease at a specific pointUsually smaller numbers of patients
30-60Look for disease response rates
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Phase III trials
So it works but is it better than what we have nowPatients randomly assigned to a standard treatment or the newer regimen
Assignment will take into account certain factors about the patients and balance them
What if there is no proven therapyHave to compare to no therapy – placebo
Gold standard endpoint is survival
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Phase IV trial
Once a drug or regimen approvedLooking at other issuesNot a common trial anymore
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#1 Concern is patient safety
Staff trainingVetting of trials for patient safety issuesEnsuring the patient has appropriate information to choose to participate
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Staff Training
All staff involved in research care of patientOur standard is CITI4-6 hour online education courseIncludes
History of clinical trials (warts and all)Special population concernsPatient consent
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Trial Vetting
All trials must be reviewed by Institutional Review Board (IRB)May look at the science of the studyMain concern is patient safetyApproves all documents of trial and any advertising
Avoidance of coercion
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Patient Consent
Patients are given an Informed Consent document with is explained thoroughly to themBest practice is for patient to take it home prior to agreementMust be written at 7-8th grade levelMust be in patient’s native languageMust clearly state that patient can decline trial and it will not impact their careMust clearly state that patient can withdraw at anytime
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Requirements of Trials
Will require visits, treatments, labs, and radiology on a fairly rigid scheduleWill require clear pathologyMay require samples or tissue blocks to be sent to central labs
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Why do trials here?
Give patients access to state-of-art therapiesHelp to define standard therapiesAdds cache to the entire institution
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Any questions?