EPI 205: Clinical Trials (Winter 2020)
Section outline
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Lecture: Design, Subjects and Randomization
Definition and importance of randomized controlled trials (RCT); examples of RCTs; disadvantages; alternatives; reasons for doing RCTs; randomization; inclusion/exclusion criteria; study designs including classical RCT, factorial designs, cross-over designs, matched pairs, cluster or grouped randomization.
Faculty: Dennis Black
Location: Mission Hall 1400-
Abstract & Video: Schwalm, Jon-David, et al. "A community-based comprehensive intervention to reduce cardiovascular risk in hypertension (HOPE 4): a cluster-randomised controlled trial." The Lancet 394.10205 (2019): 1231-1242. URL
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Li, Bai, et al. "The CHIRPY DRAGON intervention in preventing obesity in Chinese primary-school--aged children: A cluster-randomised controlled trial." PLoS medicine 16.11 (2019). File
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Lecture: Blinding, Intervention and Controls
Definition and importance of blinding; strategies if the study can’t be blinded; strategies to evaluate blinding; considerations when choosing the intervention; multiple interventions; importance of the control or placebo; advantages and disadvantages of equivalence trials.
Faculty: Deborah Grady
Location: Mission Hall 1400
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Noseworthy H, et al. The impact of blinding on the results of a randomized, placebo-controlled multiple sclerosis clinical trial. Neurology 1994 44: 16-20. File
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Kirkley A, et al. A randomized trial of arthroscopic surgery for osteoarthritis of the knee. N Engl J Med. 2008 Sep 11;359(11):1097-107. File
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Lecture 2 Homework Assignment File
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Small Group Discussion Section
Faculty: Andy Avins, Willa Brenowitz, Trisha Hue, Patrick Phillips, Alice Pressman,
Location: Avins MH-1105, Brenowitz MH-1106, Hue MH-1107, Phillips MH-2106, Pressman MH-1109
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Protocol Assignment #2 File
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Lecture: Statistical Issues in Randomized Trials, Review of data analysis for RCTs; Factorial RCT designs and analysis approaches; Subgroups and multiple comparisons: implications for inference from RCT
Pervasiveness of multiple comparisons in randomized trials; the general problem of multiple comparisons and statistical adjustments; multiple endpoints; statistical concerns about subgroup analyses; what to do with an unexpected subgroup finding; adverse experience categorization; multivariate adjustment.
Faculty: Dennis Black
Location: Mission Hall 1400
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Wang R, Lagakos SW, Ware JH, Hunter DJ, Drazen JM. Statistics in medicine--reporting of subgroup analyses in clinical trials. N Engl J Med. 2007 Nov 22;357(21):2189-94. File
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Lippman S, et al. Effect of selenium and vitamin E of risk on prostate cancer and other cancers. JAMA. 2009;301(1):(doi:10.1001/jama.2008.864) File
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Gaziano J, et al. Vitamins E and C in the prevention of prostate and total cancer in men: The Physicians' Health Study II randomized controlled trial. JAMA 2009;301(1):(doi:10.1001/jama.2008.862 File
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Manson et al. Vitamin D Supplements and Prevention of Cancer and Cardiovascular Disease. NEJM 2019 File
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Manson et al. Marine n−3 Fatty Acids and Prevention of Cardiovascular Disease and Cancer NEJM 2019 File
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AssignL3_2020 File
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Lecture: Measuring Outcomes and Adverse Effects
Clinical outcomes and alternatives. Defining adverse events; elicited vs. volunteered; nuisance adverse events; pitfalls of attribution of cause; FDA adverse events classifications.
Faculty: Dennis Black
Location: Mission Hall 1400
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Psaty BM, Lumley T. Surrogate end points and FDA approval: a tale of 2 lipid-altering drugs. JAMA. 2008 Mar 26;299(12):1474-6. File
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Bent S, et al. Brief communication: Better ways to question patients about adverse medical events: a randomized, controlled trial. Ann Intern Med. 2006 Feb 21;144(4):257-61. File
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Assign L4_2020 File
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Lecture: Follow-up, Adherence to the Protocol, and Post-Randomization and Introduction to Sample Size Planning
Follow-up in RCTs; what happens after randomization; patient compliance or adherence; effect of incomplete follow-up; strategies to enhance compliance; intention-to- treat and per-protocol analyses; analysis based on post-randomization; subgroup analysis.
Faculty: Dennis Black
Location: Mission Hall 1400-
Hollis and Campbell. What is meant by intention to treat analysis? Survey of published randomized controlled trials. BMJ 1999:319;670-4. File
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Assign L5_2020 File
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Small Group Discussion Section
Faculty: Andy Avins, Willa Brenowitz, Trisha Hue, Patrick Phillips, Alice Pressman,
Location: Avins MH-1105, Brenowitz MH-1106, Hue MH-1107, Phillips MH-2106, Pressman MH-2107
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Protocol Assignment #3 File
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Lecture: Multicenter Studies and Industry-sponsored trials
The anatomy and physiology of multicenter trials. How to work effectively and make use of data from such trials. How industry trials operate. Pros and cons of participation in industry sponsored trials and principles that may minimize bias.Faculty: Dennis Black
Location: Mission Hall 1400 -
Lecture: Ethics in Clinical Trials and Interim Monitoring
Ethical issues in clinical trials, including choice of interventions in control and intervention groups, randomization, selection of subjects, and interim analysesWhy alter/stop a clinical trial early; who should decide to stop the trial; what parameters should be monitored and how often; what statistical methods should be used; statistical approaches
Faculty: Alison Huang
Location: Mission Hall 1400-
Lo B. Ethical issues in clinical trials, pages 1-7. File
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Dixon D, Freedman R et al.. Guidelines for data and safety monitoring for clinical trials not requiring traditional data monitoring committees. Clinical Trials 2006. Nov 3: 314-19. File
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Bryant J and Wolmark N. Letrozole after tamoxifen for breast cancer--what is the price of success? N Engl J Med. 2003 Nov 6;349(19):1855-7. File
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DeMets DL, Pocock SJ, Julian DG. The agonizing negative trend in monitoring of clinical trials. Lancet 1999:354:1983-88. File
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AssignL7_2020 File
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Lecture: Nuts and Bolts - Conducting a Trial
Should one do a trial; pilot studies; funding sources; contracts; budgets; the study team; team management; space; recruitment of study subjects; starting the protocol; forms; compliance and follow-up; final visit and post-trial.
Faculty: Deborah Grady
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Epi205 Final Exam_2020 File
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Small Group Discussion Section
Faculty: Andy Avins, Willa Brenowitz, Trisha Hue, Patrick Phillips, Alice Pressman,
Location: Sections will be held by Zoom. on 3/19 @ 8:45am - 10:15am Please connect with your section leader for zoom details.
