EPI 205: Clinical Trials (Winter 2016)
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-
Lippman S, et al. Effect of selenium and vitamin E on risk of prostate cancer and other cancers. JAMA. 2009;301(1):(doi:10.1001/jama.2008.864) [Note: read abstract and comment sections, review the tables and figures and skim the rest] 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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Black DM, et al. PaTH Study Investigators. The effects of parathyroid hormone and alendronate alone or in combination in postmenopausal osteoporosis. N Engl J Med. 2003:349:1207-15. [Note: read abstract] File
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Section from PaTH Protocol 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. [Note: PDF doc is poor quality] 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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Small Group Discussion Section
Faculty: Andy Avins, Mary Beattie, Trisha Hue, Anne Schafer, Ann Schwartz, Jeff Tice
Location: Avins MH-1105, Beattie MH-1106, Hue MH-1107, Schafer MH-1108 , Schwartz MH-1109, Tice MH-2500 2:30pm - 4:00pm
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Dobscha SK, et al.,Collaborative care for chronic pain in primary care: a cluster randomized trial. JAMA. 2009 Mar 25;301(12):1242-52. File
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Stearns V, Slack R, Greep N, Henry-Tilman R, Osborne M, Bunnell C, Ullmer L, Gallagher A, Cullen J, Gehan E, Hayes DF, Isaacs C. Paroxetine is an effective treatment for hot flashes: results from a prospective randomized clinical trial. J Clin Oncol. 2005 File
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Lecture: Statistical Issues in Randomized Trials
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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Lecture: Measuring Outcomes and Adverse Effects
Defining adverse events; elicited vs. volunteered; nuisance adverse events; pitfalls of attribution of cause; FDA adverse events classifications.
Faculty: Steve Cummings
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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Small Group Discussion Section
Faculty: Andy Avins, Mary Beattie, Trisha Hue, Anne Schafer, Ann Schwartz, Jeff Tice
Location: Avins MH-1105, Beattie MH-1106, Hue MH 1107, Schafer MH-1108 , Schwartz MH-1109, Tice MH-2500 2:30pm - 4:00pm
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Sackett DL. Superiority trials, noninferiority trials, and prisoners of the 2-sided null hypothesis. ACP Journal Club. March/April 2004; A-11. File
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Granger CB, et al; Apixaban versus warfarin in patients with atrial fibrillation. N Engl J Med. 2011 Sep 15;365(11):981-92. File
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Olanow CW, et al. A double-blind controlled trial of bilateral fetal nigral transplantation in Parkinson's disease. Ann Neurol. 2003 Sep;54(3):403-14. File
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Freeman TB, et al. Use of placebo surgery in controlled trials of a cellular-based therapy for Parkinson’s disease. NEJM 341:988-91 File
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Macklin, R. The ethical problems with sham surgery in clinical research. NEJM 341:992-6. 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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AnswerAssignL5 2016 File
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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: Deborah Grady
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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AnswerAssignL6 2016 File
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Small Group Discussion Section
Faculty: Andy Avins, Mary Beattie, Trisha Hue, Anne Schafer, Ann Schwartz, Jeff Tice
Location: Avins MH-1105, Beattie MH-1106, Hue MH 1107, Schafer MH-1108 , Schwartz MH-1109, Tice MH-2500 2:30pm - 4:00pm
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Montori VM, Devereaux PJ, Adhikari NK, et al. Randomized trials stopped early for benefit: a systematic review .JAMA. 2005 Nov 2;294(17):2203-9. Note: read abstract only File
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Pocock SJ. When (not) to stop a clinical trial for benefit. JAMA. 2005 Nov 2:294(17):2228-30. 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
Location: Mission Hall 1400 -
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: Steve Cummings
Location: Mission Hall 1400
