Skip to main content

Clinical Trials and Their Principles in Urologic Oncology

  • Living reference work entry
  • First Online:
  • 325 Accesses

Abstract

Clinical trials represent a relevant link between cancer research and clinical practice and provide the basis for evidence-based medicine. Trials in uro-oncology are essential for moving new methods of preventing, diagnosing, and treating cancer from the labs to clinical settings with the ultimate goal to improve care and quality of life of cancer patients.

Clinical trials impact the treatment of individual patients by selecting therapies; in addition, they affect also the societies’ health systems by evaluating and possibly enhancing the value of provided treatment options. Clinical trial conduction also harbors the potential of posing unknown risks to participants. Additionally, it needs to be considered that potentially biased knowledge retrieved from trials may harm patients. Hence, clinical trial implementation involves a rigorous approach based on scientific, statistical, ethical, and legal considerations.

In this chapter, commonly applied trial designs and relevant aspects of designing clinical studies will be contemplated. The aim is to provide sufficient background needed for proper interpretation of research findings and translating clinical trial results into clinical practice, which will support evidence-based clinical decision-making aiming at the best healthcare for each individual patient. Another objective is to provide basic guidance for the scientific community in the production of reliable evidence. Moreover, ethical principles related to clinical research including the topic of equipoise will be highlighted. Finally, the dilemmas and hurdles encountered in planning and executing trials will be touched. Ultimately one focus will be set on research in uro-oncology surgery which faces specific hurdles different to clinical trials for drug development.

This is a preview of subscription content, log in via an institution.

References

  • Administration USFaD. AERS patient outcomes by year. 2010.

    Google Scholar 

  • Agarwal N, Sonpavde G, Sternberg CN. Novel molecular targets for the therapy of castration-resistant prostate cancer. Eur Urol. 2012;61(5):950–60.

    Article  CAS  PubMed  Google Scholar 

  • Akobeng AK. Assessing the validity of clinical trials. J Pediatr Gastroenterol Nutr. 2008;47:277–82.

    Article  PubMed  Google Scholar 

  • Altar CA. The biomarkers consortium: on the critical path of drug discovery. Clin Pharmacol Ther. 2008;83:361–4.

    Article  CAS  PubMed  Google Scholar 

  • Altman DG, Bland JM. Statistics notes. Treatment allocation in controlled trials: why randomise? BMJ. 1999;318:1209.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Altman DG, Schulz KF, Moher D, Egger M, Davidoff F, Elbourne D, et al. The revised CONSORT statement for reporting randomized trials: explanation and elaboration. Ann Intern Med. 2001;134:663–94.

    Article  CAS  PubMed  Google Scholar 

  • American Dental Association, Council on Scientific Affairs. American Dental Association. Program guidelines: products for the treatment of dentinal hypersensitivity. 2012. Available from: www.ada.org.

  • Armstrong AJ, Garrett-Mayer E, Ou Yang YC, Carducci MA, Tannock I, de Wit R, et al. Prostate-specific antigen and pain surrogacy analysis in metastatic hormone-refractory prostate cancer. J Clin Oncol. 2007;25:3965–70.

    Article  PubMed  Google Scholar 

  • Arya R, Antonisamy B, Kumar S. Sample size estimation in prevalence studies. Indian J Pediatr. 2012;79:1482–1488.; Perspect Clin Res. 2016;7(2):75–80.

  • Aus G. Second-line therapy after radical prostatectomy failure: for whom? When? How? Eur Urol. 2007;51:1155–7.

    Article  PubMed  Google Scholar 

  • Autio KA, Bennett AV, Jia X, Fruscione M, Beer TM, George DJ, et al. Prevalence of pain and analgesic use in men with metastatic prostate cancer using a patient-reported outcome measure. J Oncol Pract. 2016;9:223–9.

    Article  Google Scholar 

  • Aziz A, Kempkensteffen C, May M, Lebentrau S, Burger M, Chun FK, Brookman-May S. Prognostic, predictive and potential surrogate markers in castration-resistant prostate cancer. Expert Rev Anticancer Ther. 2015;15(6):649–66. Review

    Article  CAS  PubMed  Google Scholar 

  • Basch E, Trentacosti AM, Burke LB, Kwitkowski V, Kane RC, Autio KA, et al. Pain palliation measurement in cancer clinical trials: the US food and drug administration perspective. Cancer. 2014;120:761–7.

    Article  PubMed  Google Scholar 

  • Basch e. Patient-Reported Outcomes – Harnessing Patients’ Voices to Improve Clinical Care. N Engl J Med. 2017;376(2):105–108. https://doi.org/10.1056/NEJMp1611252.

  • Beer TM, Armstrong AJ, Rathkopf DE, Loriot Y, Sternberg CN, Higano CS, et al., PREVAIL Investigators. Enzalutamide in metastatic prostate cancer before chemotherapy. N Engl J Med. 2014;371(5):424–433.

    Google Scholar 

  • Berkman ND, Santaguida PL, Viswanathan M, Morton SC. The empirical evidence of bias in trials measuring treatment differences. Rockville: Agency for Healthcare Research and Quality; 2014. Report No.: 14-EHC050-EF. AHRQ Methods for Effective Health Care.

    Google Scholar 

  • Berlin JA, Colditz GA. The role of meta-analysis in the regulatory process for foods, drugs, and devices. JAMA. 1999;281(9):830–4.

    Article  CAS  PubMed  Google Scholar 

  • Berthold DR, Pond GR, Roessner M, de Wit R, Eisenberger M, Tannock AI. Treatment of hormone-refractory prostate cancer with docetaxel or mitoxantrone: relationships between prostate-specific antigen, pain, and quality of life response and survival in the TAX-327 study. Clin Cancer Res. 2008;14:2763–7.

    Article  CAS  PubMed  Google Scholar 

  • Brenner DE. Cancer prevention: chemoprevention. In: DeVita Jr VT, Lawrence TS, Rosenberg SA, editors. Cancer principles & practice of oncology. 8th ed. Philadelphia: Lippincott Williams & Wilkins; 2008. p. 609–35.

    Google Scholar 

  • Cahana A, Romagnioli S. Not all placebos are the same: a debate on the ethics of placebo use in clinical trials versus clinical practice. J Anesth. 2007;21(1):102–5.

    Article  PubMed  Google Scholar 

  • Cella D. Progression-free survival, patient-reported outcomes and the holy grail. J Community Support Oncol. 2014;12(8):265–6.

    Article  PubMed  Google Scholar 

  • Chapman SJ, Shelton B, Mahmood H, Fitzgerald JE, Harrison EM, Bhangu A. Discontinuation and non-publication of surgical randomised controlled trials: observational study. BMJ. 2014;349:g6870.

    Article  PubMed  PubMed Central  Google Scholar 

  • Chin R, Lee BY. Principles and practice of clinical trial medicine. Amsterdam: Academic Press; 2008. p. 3–16.

    Book  Google Scholar 

  • ClinicalTrials.gov. Learn about clinical studies. http://clinicaltrials.gov/ct2/info/understand. Accessed 39 Sep 2017.

  • Cohen J. A power primer. Psychol Bull. 1992;112:155–9.

    Article  CAS  PubMed  Google Scholar 

  • Collins R, MacMahon S. Reliable assessment of the effects of treatment on mortality and major morbidity, I: clinical trials. Lancet. 2001;357:373–80.

    Article  CAS  PubMed  Google Scholar 

  • Common Terminology Criteria for Adverse Events (CTCAE) Version 4.0. May 28, 2009 (v4.03: June 14, 2010); ICH GCP.

    Google Scholar 

  • De Wit R, Fizazi K, Jinga V. Phase 3, randomized, placebo-controlled trial of orteronel (TAK-700) plus prednisone in patients (pts) with chemotherapy-naïve metastatic castration-resistant prostate cancer (mCRPC) (ELM-PC 4 trial). Oral presentation at ASCO 2014.

    Google Scholar 

  • van Delden JJ, van der Graaf R. Revised CIOMS international ethical guidelines for health-related research involving humans. JAMA. 2016. https://doi.org/10.1001/jama.2016.18977. [Epub ahead of print]

  • Doll R. Sir Austin Bradford Hill and the progress of medical science. BMJ. 1992;305(6868):1521–6.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Dumville JC, McFarlane E, Edwards P, Lipp A, Holmes A, Liu Z. Preoperative skin antiseptics for preventing surgical wound infections after clean surgery. Cochrane Database Syst Rev. 2015;4:CD003949.

    Google Scholar 

  • Ellenberg S, Hamilton JM. Surrogate endpoints in clinical trials: cancer. Stat Med. 1989;8:405–13.

    Article  CAS  PubMed  Google Scholar 

  • Ellenberg S, Fleming TR, DeMets DL. Data monitoring committees in clinical trials: a practical perspective. New York: John Wiley & Sons; 2002.

    Book  Google Scholar 

  • Expertise Ian Tannock; Stiftung Männergesundheit. http://www.stiftung-maennergesundheit.de/fileadmin/maennergesundheit/media/downloads/Statements/Tannock_Critique_of_the_PREFERE_study_und_Gutachten.pdf. Accessed at 11 Dec 2012.

  • Fisch MJ, Lee JW, Weiss M, Wagner LI, Chang VT, Cella D, et al. Prospective, observational study of pain and analgesic prescribing in medical oncology outpatients with breast, colorectal, lung, or prostate cancer. J Clin Oncol. 2012:1980–8.

    Google Scholar 

  • Fizazi K, Jones R, Oudard S, Efstathiou E, Saad F, de Wit R, et al. Phase III, randomized, double-blind, multicenter trial comparing orteronel (TAK-700) plus prednisone with placebo plus prednisone in patients with metastatic castration-resistant prostate cancer that has progressed during or after docetaxel-based therapy: ELM-PC 5. J Clin Oncol. 2015;33:723–31.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Flecha OD, Douglas de Oliveira DW, Marques LS, Gonçalves PF. A commentary on randomized clinical trials: how to produce them with a good level of evidence. Perspect Clin Res. 2016;7(2):75–80.

    Article  PubMed  PubMed Central  Google Scholar 

  • Fleming TR. Current issues in non-inferiority trials. Stat Med. 2008;27(3):317–32.

    Article  PubMed  Google Scholar 

  • Fleming TR, DeMets DL. Surrogate end points in clinical trials: are we being misled? Ann Intern Med. 1996;125(7):605–13.

    Article  CAS  PubMed  Google Scholar 

  • Fleming TR, Sharples K, McCall J, Moore A, Rodgers A, Stewart R. Maintaining confidentiality of interim data to enhance trial integrity and credibility. Clin Trials. 2008;5:157–67.

    Article  PubMed  PubMed Central  Google Scholar 

  • Foddy B. A duty to deceive: placebos in clinical practice. Am J Bioeth. 2009;9(12):4–12.

    Article  PubMed  Google Scholar 

  • Fontanarosa PB, Rennie D, DeAngelis CD. Postmarketing surveillance–lack of vigilance, lack of trust. JAMA. 2004;292(21):2647–50.

    Article  CAS  PubMed  Google Scholar 

  • Food and Drug Administration. Guidance for industry: clinical trial endpoints for the approval of cancer drugs and biologics. 2007. http://www.fda.gov/downloads/Drugs/Guidances/ucm071590.pdf.

  • Freedman B. Equipoise and the ethics of clinical research. N Engl J Med. 1987;317:141–5.

    Article  CAS  PubMed  Google Scholar 

  • Fries JF, Krishnan E. Equipoise, design bias, and randomized controlled trials: the elusive ethics of new drug development. Arthritis Res Ther. 2004;6:R250–5.

    Article  PubMed  PubMed Central  Google Scholar 

  • Gerlinger M, Rowan AJ, Horswell S, Larkin J, Endesfelder D, Gronroos E, et al. Intratumor heterogeneity and branched evolution revealed by multiregion sequencing. N Engl J Med. 2012;366(10):883–92.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Gerlinger M, Catto JW, Orntoft TF, Real FX, Zwarthoff EC, Swanton C. Intratumour heterogeneity in urologic cancers: from molecular evidence to clinical implications. Eur Urol. 2015;67(4):729–37.

    Article  CAS  PubMed  Google Scholar 

  • Good clinical practice guidelines for essential documents for the conduct of a clinical trial. In: International conference on harmonisation. Geneva: ICH Secretariat c/o IFPMA; 1994.

    Google Scholar 

  • Gravetter FJ, Forzano LAB. Research methods for the behavioral sciences. 3rd ed. Belmont: Wadsworth Cengage Learning; 2009.

    Google Scholar 

  • Guidance for Industry. E6. Good clinical practice–consolidated guidance. Bethesda: US Department of Health and Human Services; 1996.

    Google Scholar 

  • Halabi S, Vogelzang NJ, Kornblith AB, Ou SS, Kantoff PW, Dawson NA, et al. Pain predicts overall survival in men with metastatic castration-refractory prostate cancer. J Clin Oncol. 2008;26:2544–9.

    Article  PubMed  Google Scholar 

  • Halabi S, Vogelzang NJ, Ou SS, et al. Progression-free survival as a predictor of overall survival in men with castrate-resistant prostate cancer. J Clin Oncol. 2009;27:2766–71.

    Article  PubMed  PubMed Central  Google Scholar 

  • Hennekens CH, Demets D. The need for large-scale randomized evidence without undue emphasis on small trials, meta-analyses, or subgroup analyses. JAMA. 2009;302(21):2361–2.

    Article  CAS  PubMed  Google Scholar 

  • Herr HW, Faulkner JR, Grossman HB, Natale RB, de Vere White R, Sarosdy MF, et al. Surgical factors influence bladder cancer outcomes: a cooperative group report. J Clin Oncol. 2004;22(14):2781–9.

    Article  PubMed  Google Scholar 

  • Hill AB. Medical ethics and controlled trials. Br Med J. 1963;1(5337):1043–9.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Hollis S, Campbell F. What is meant by intention to treat analysis? Survey of published randomised controlled trials. BMJ. 1999;319:670–4.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Hoos A, Eggermont AM, Janetzki S, Hodi FS, Ibrahim R, Anderson A, et al. Improved endpoints for cancer immunotherapy trials. J Natl Cancer Inst. 2010;102:1388–97.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Hussain M, Smith MR, Sweeney C, et al. Cabozantinib (XL184) in metastatic castration-resistant prostate cancer (mCRPC): results from a phase II randomized discontinuation trial. J Clin Oncol (Meeting Abstracts). 2011;29:4516.

    Article  Google Scholar 

  • Ioannidis JPA. Effect of the statistical significance of results on the time to completion and publication of randomized efficacy trials: a survival analysis. J Am Med Assoc. 1998;279:281–6. 28,29

    Article  CAS  Google Scholar 

  • Jüni P, Altman DG, Egger M. Systematic reviews in health care: assessing the quality of controlled clinical trials. BMJ. 2001;323:42–6.

    Article  PubMed  PubMed Central  Google Scholar 

  • Kantoff PW, Higano CS, Shore ND, Berger ER, Small EJ, Penson DF, et al. Sipuleucel-T immunotherapy for castration-resistant prostate cancer. N Engl J Med. 2010;363(5):411–22.

    Article  CAS  PubMed  Google Scholar 

  • Kasenda B, von Elm E, You JJ, Blümle A, Tomonaga Y, Saccilotto R, et al. Agreements between industry and academia on publication rights: a retrospective study of protocols and publications of randomized clinical trials. PLoS Med. 2016;13(6):e1002046.

    Article  PubMed  PubMed Central  Google Scholar 

  • Kelly WK, Halabi S, Carducci MA, George DJ, Mahoney JF, Stadler WM. A randomized, double-blind, placebo-controlled phase III trial comparing docetaxel, prednisone, and placebo with docetaxel, prednisone, and bevacizumab in men with metastatic castration-resistant prostate cancer (mCRPC): survival results of CALGB 90401. J Clin Oncol (Meeting Abstracts). 2010;28:LBA4511.

    Article  Google Scholar 

  • Lebwohl D, Kay A, Berg W, Baladi JF, Zheng J. Progression-free survival: gaining on overall survival as a gold standard and accelerating drug development. Cancer J. 2009;15:386–94.

    Article  CAS  PubMed  Google Scholar 

  • Lilford RJ, Braunholtz DA, Greenhalgh R, Edwards SJL. Trials and fast changing technologies: the case for tracker studies. Br Med J. 2000;320:43–6.

    Article  CAS  Google Scholar 

  • Maro JC, Platt R, Holmes JH, et al. Design of a national distributed health data network. Ann Intern Med. 2009;151(5):341–4.

    Article  PubMed  Google Scholar 

  • Mello MM, Studdert DM, Brennan TA. The rise of litigation in human subjects research. Ann Intern Med. 2003;139(1):40–5.

    Article  PubMed  Google Scholar 

  • Michaelson MD, Oudard S, Ou YC, Sengeløv L, Saad F, Houede N, et al. Randomized, placebo-controlled, phase III trial of sunitinib plus prednisone versus prednisone alone in progressive, metastatic, castration-resistant prostate cancer. J Clin Oncol. 2014;32(2):76–82.

    Article  CAS  PubMed  Google Scholar 

  • Mitelman F, Johansson B, Mertens F. The impact of translocations and gene fusions on cancer causation. Nat Rev Cancer. 2007;7:233–45.

    Article  CAS  PubMed  Google Scholar 

  • Moher D, Pham B, Lawson ML, Klassen TP. The inclusion of reports of randomised trials published in languages other than English in systematic reviews. Health Technol Assess. 2003;7:1–90.

    Article  CAS  PubMed  Google Scholar 

  • Naing L, Winn T, Rusli BN. Practical issues in calculating the sample size for prevalence studies. Arch Orofac Sci. 2006;1:9–14.

    Google Scholar 

  • Narayan VM, Cone EB, Smith D, Scales CD Jr, Dahm P. Improved reporting of randomized controlled trials in the urologic literature. Eur Urol. 2016;70(6):1044–9.

    Article  PubMed  Google Scholar 

  • NCT# 01224665. https://clinicaltrials.gov/ct2/results?term=NCT%23+01224665&Search=Search

  • Pagano M, Gauverau K. Principles of biostatistics. Cengage Learning: São Paulo; 2012.

    Google Scholar 

  • Pannucci CJ, Wilkins EG. Identifying and avoiding bias in research. Plast Reconstr Surg. 2010a;126:619–25.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Pannucci CJ, Wilkins EG. Identifying and avoiding bias in research. Plast Reconstr Surg. 2010b;126:619–25.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Park HM, Han SS, Lee EC, Lee SD, Yoon HM, Eom BW, et al. Randomized clinical trial of preoperative skin antisepsis with chlorhexidine gluconate or povidone-iodine. Br J Surg. 2016;104(2):e145–e150.

    Google Scholar 

  • Polit DF, Gillespie BM. Intention-to-treat in randomized controlled trials: recommendations for a total trial strategy. Res Nurs Health. 2010;33:355–68.

    Article  PubMed  Google Scholar 

  • Prentice RL. Surrogate endpoints in clinical trials: definition and operational criteria. Stat Med. 1989;8(4):431–40.

    Article  CAS  PubMed  Google Scholar 

  • Reith C, Landray M, Devereaux PJ, Bosch J, Granger CB, Baigent C, et al. Randomized clinical trials – removing unnecessary obstacles. N Engl J Med 2013;369:1061–1065; Neuropsychiatr Dis Treat. 2016;12:1341–9. doi: https://doi.org/10.2147/NDT.S101938. eCollection 2016.

  • Ryan CJ, Shah S, Efstathiou E, Smith MR, Taplin ME, Bubley GJ, et al. Phase II study of abiraterone acetate in chemotherapy-naive metastatic castration-resistant prostate cancer displaying bone flare discordant with serologic response. Clin Cancer Res. 2011;17:4854–61.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Ryan CJ, Smith MR, de Bono JS, Molina A, Logothetis CJ, de Souza P, et al., COUAA-302 Investigators. Abiraterone in metastatic prostate cancer without previous chemotherapy. N Engl J Med. 2013;368:138–148.

    Google Scholar 

  • Scales CD Jr, Norris RD, Keitz SA, Peterson BL, Preminger GM, Vieweg J, Dahm P. A critical assessment of the quality of reporting of randomized, controlled trials in the urology literature. J Urol. 2007;177(3):1090–4.

    Article  PubMed  Google Scholar 

  • Scher HI, Mazumdar M, Kelly WK. Clinical trials in relapsed prostate cancer: defining the target. J Natl Cancer Inst. 1996;88:1623–34.

    Article  CAS  PubMed  Google Scholar 

  • Scher HI, Warren M, Heller G. The association between measures of progression and survival in castrate-metastatic prostate cancer. Clin Cancer Res. 2007;13:1488–92.

    Article  CAS  PubMed  Google Scholar 

  • Scher HI, Halabi S, Tannock I, et al. Design and end points of clinical trials for patients with progressive prostate cancer and castrate levels of testosterone: recommendations of the Prostate Cancer Clinical Trials Working Group. J Clin Oncol. 2008;26:1148–59.

    Article  PubMed  PubMed Central  Google Scholar 

  • Scher HI, Morris MJ, Stadler WM, Higano C, Basch E, Fizazi K, et al. Trial design and objectives for castration-resistant prostate cancer: updated recommendations from the prostate cancer clinical trials working group 3. J Clin Oncol. 2016;34(12):1402–18.

    Article  PubMed  PubMed Central  Google Scholar 

  • Schulz KF. Randomised trials, human nature, and reporting guidelines. Lancet. 1996;348:596–8.

    Article  CAS  PubMed  Google Scholar 

  • Scott NW, McPherson GC, Ramsay CR, Campbell MK. The method of minimization for allocation to clinical trials: a review. Control Clin Trials. 2002;23(6):662–74.

    Article  PubMed  Google Scholar 

  • Shamseer L, Hopewell S, Altman DG, Moher D, Schulz KF. Update on the endorsement of CONSORT by high impact factor journals: a survey of journal “instructions to authors” in 2014. Trials. 2016;17(1):301.

    Article  PubMed  PubMed Central  Google Scholar 

  • Simmons MN, Stephenson AJ, Klein EA. Natural history of biochemical recurrence after radical prostatectomy: risk assessment for secondary therapy. Eur Urol. 2007;51:1175–84.

    Article  PubMed  Google Scholar 

  • Spieth PM, Kubasch AS, Penzlin AI, Illigens BM, Barlinn K, Siepmann T. Randomized controlled trials - a matter of design. Neuropsychiatr Dis Treat. 2016;12:1341–9.

    PubMed  PubMed Central  Google Scholar 

  • Spritzer CE, Afonso PD, Vinson EN, Turnbull JD, Morris KK, Foye A, et al. Bone marrow biopsy: RNA isolation with expression profiling in men with metastatic castration-resistant prostate cancer–factors affecting diagnostic success. Radiology. 2013;269:816–23.

    Article  PubMed  PubMed Central  Google Scholar 

  • Stanley K. Design of randomized controlled trials. Circulation. 2007;115:1164–9.

    Article  PubMed  Google Scholar 

  • Steinberg L, Thissen D. Using effect sizes for research reporting: examples using item response theory to analyze differential item functioning. Psychol Methods. 2006;11:402–15.

    Article  PubMed  Google Scholar 

  • Steinbrook R. Protecting research subjects—the crisis at Johns Hopkins. N Engl J Med. 2002;346(9):716–20.

    Article  PubMed  Google Scholar 

  • Stern JM, Simes RJ. Publication bias: evidence of delayed publication in a cohort study of clinical research projects. Br Med J. 1997;315:640–5.

    Article  CAS  Google Scholar 

  • Stewart GD, Aitchison M, Bex A, Larkin J, Lawless C, Méjean A, et al. Cytoreductive nephrectomy in the tyrosine kinase inhibitor era: a question that may never be answered. Eur Urol. 2016.; pii: S0302–2838(16):30743–6. [Epub ahead of print]

    Google Scholar 

  • Strom BL. Potential for conflict of interest in the evaluation of suspected adverse drug reactions: a counterpoint. JAMA. 2004;292(21):2643–6.

    Article  CAS  PubMed  Google Scholar 

  • Taplin ME, Montgomery RB, Logothetis C, et al. Effect of neoadjuvant abiraterone acetate (AA) plus leuprolide acetate (LHRHa) on PSA, pathological complete response (pCR), and near pCR in localized high-risk prostate cancer (LHRPC): results of a randomized phase II study. Oral presentation at ASCO 2012.

    Google Scholar 

  • Temple R. Are surrogate markers adequate to assess cardiovascular disease drugs? JAMA. 1999;282(8):790–5.

    Article  CAS  PubMed  Google Scholar 

  • The Belmont report: ethical principles and guidelines for the protection of human subjects of research. 2000. Available at https://videocast.nih.gov/pdf/ohrp_appendix_belmont_report_vol_2.pdf.

  • Thuret R, Massard C, Gross-Goupil M, Escudier B, Di Palma M, Bossi A, et al. The postchemotherapy PSA surge syndrome. Ann Oncol. 2008;19:1308–11.

    Article  CAS  PubMed  Google Scholar 

  • Tomlins SA, Rhodes DR, Perner S, et al. Recurrent fusion of TMPRSS2 and ETS transcription factor genes in prostate cancer. Science. 2005;310:644–8.

    Article  CAS  PubMed  Google Scholar 

  • Umscheid et al. Code of federal regulations–the common rule: protection of human subjects. vol. 45. 2009. p. 10; Postgrad Med. Author manuscript; available in PMC 2012 February 6.

    Google Scholar 

  • Umscheid MD, Margolis DJ, Grossman CE. Key concepts of clinical trials: a narrative review. Postgrad Med. 2011;123(5):194–204.

    Article  PubMed  PubMed Central  Google Scholar 

  • US Food and Drug Administration Website. 2000. Memorandum of understanding between the FDA, NCI, and CMS for the FDA/NCI/CMS Oncology Biomarker Qualification Initiative [document MOU 225-06-8001]. http://www.fda.gov/AboutFDA/Partnerships Collaborations/MemorandaofUnderstandingMOUs/DomesticMOUs/ucm115681.htm.

  • Vicini FA, Vargas C, Abner A, Kestin L, Horwitz E, Martinez A. Limitations in the use of serum prostate specific antigen levels to monitor patients after treatment for prostate cancer. J Urol. 2005;173:1456–62.

    Article  CAS  PubMed  Google Scholar 

  • Vickers A, Goyal N, Harland R, Rees R. Do certain countries produce only positive results? A systematic review of controlled trials. Control Clin Trials. 1998;19:159–66.26.

    Article  CAS  PubMed  Google Scholar 

  • Vickers AJ, Savage CJ, Hruza M, Tuerk I, Koenig P, Martínez-Piñeiro L, et al. The surgical learning curve for laparoscopic compared to open radical prostatectomy: a retrospective cohort study. Lancet Oncol. 2009;10(5):475–80.

    Article  PubMed  PubMed Central  Google Scholar 

  • Walker E, Nowacki AS. Understanding equivalence and noninferiority testing. J Gen Intern Med. 2011;26(2):192–6.

    Article  PubMed  Google Scholar 

  • Wellek S, Blettner M. On the proper use of the crossover design in clinical trials: part 18 of a series on evaluation of scientific publications. Dtsch Arztebl Int. 2012;109(15):276–81.

    PubMed  PubMed Central  Google Scholar 

  • Whelan DB, Dainty K, Chahal J. Efficient designs: factorial randomized trials. J Bone Joint Surg Am. 2012;94(Suppl 1):34–8.

    Article  PubMed  Google Scholar 

  • Wilcox CM. Exploring the use of the sham design for interventional trials: implications for endoscopic research. Gastrointest Endosc. 2008;67(1):123–7.

    Article  PubMed  Google Scholar 

  • Wunsch H, Linde-Zwirble WT, Angus DC. Methods to adjust for bias and confounding in critical care health services research involving observational data. J Crit Care. 2006;21:1–7.

    Article  PubMed  Google Scholar 

  • Xie W, Sweeney C, Regan M, Nakabayashi M, Buyse M, Clarke N. Metastasis free survival (MFS) is a surrogate for overall survival (OS) in localized prostate cancer (CaP). Ann Oncol. 2016;27(6):243–65. https://doi.org/10.1093/annonc/mdw372.

    Google Scholar 

  • Zhang Z, Peluso MJ, Gross CP, Viscoli CM, Kernan WN. Adherence reporting in randomized controlled trials. Clin Trials. 2014;11:195–204.

    Article  PubMed  Google Scholar 

  • Zu wenig Probanden. Krebsforscher blamieren sich mit Vorzeigestudie. Spiegel online. http://www.spiegel.de/gesundheit/diagnose/prostatakrebs-studie-prefere-scheitert-zu-wenige-probanden-a-1122280.html. Accessed 22 Nov 2016.

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Sabine D. Brookman-May .

Editor information

Editors and Affiliations

Section Editor information

Rights and permissions

Reprints and permissions

Copyright information

© 2017 Springer International Publishing AG

About this entry

Cite this entry

Brookman-May, S.D., Mir, M.C., May, M., Klatte, T. (2017). Clinical Trials and Their Principles in Urologic Oncology. In: Merseburger, A., Burger, M. (eds) Urologic Oncology. Springer, Cham. https://doi.org/10.1007/978-3-319-42603-7_54-1

Download citation

  • DOI: https://doi.org/10.1007/978-3-319-42603-7_54-1

  • Received:

  • Accepted:

  • Published:

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-42603-7

  • Online ISBN: 978-3-319-42603-7

  • eBook Packages: Springer Reference MedicineReference Module Medicine

Publish with us

Policies and ethics