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Journal of Medical Ethics logoLink to Journal of Medical Ethics
. 1999 Aug;25(4):325–329. doi: 10.1136/jme.25.4.325

Should Zelen pre-randomised consent designs be used in some neonatal trials?

P Allmark 1
PMCID: PMC479242  PMID: 10461596

Abstract

My aim is to suggest that there is a case for using a randomised consent design in some neonatal trials. As an example I use the trials of extracorporeal membrane oxygenation (ECMO) in neonates suffering pulmonary hypertension. In some trials the process of obtaining consent has the potential to harm the subject, for example, by disappointing those who end in the control group and by creating additional anxiety at times of acute illness. An example of such were the trials of extracorporeal membrane oxygenation (ECMO) in neonates suffering pulmonary hypertension. Pre-randomised consent could avoid or lessen these harms. However, a number of ethical objections are made to these research designs. They involve denial of information, using people, denial of choice, and "overselling" of allocated treatment. Furthermore, they are the wrong response; better communication might be the answer, for example. I argue that these objections are not completely persuasive. However, they are enough to suggest caution in the use of such designs.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Altman D. G., Whitehead J., Parmar M. K., Stenning S. P., Fayers P. M., Machin D. Randomised consent designs in cancer clinical trials. Eur J Cancer. 1995 Nov;31A(12):1934–1944. doi: 10.1016/0959-8049(95)00470-x. [DOI] [PubMed] [Google Scholar]
  2. Bartlett R. H., Roloff D. W., Cornell R. G., Andrews A. F., Dillon P. W., Zwischenberger J. B. Extracorporeal circulation in neonatal respiratory failure: a prospective randomized study. Pediatrics. 1985 Oct;76(4):479–487. [PubMed] [Google Scholar]
  3. Baum M. Informed consent. Reactionary approach inhibits progress. BMJ. 1994 Jan 22;308(6923):271–271. doi: 10.1136/bmj.308.6923.271b. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Brewin C. R., Bradley C. Patient preferences and randomised clinical trials. BMJ. 1989 Jul 29;299(6694):313–315. doi: 10.1136/bmj.299.6694.313. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Doyal L. Informed consent in medical research. Journals should not publish research to which patients have not given fully informed consent--with three exceptions. BMJ. 1997 Apr 12;314(7087):1107–1111. doi: 10.1136/bmj.314.7087.1107. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Emberton M., Wood C., Meredith P. Informed consent in clinical trials. Should be comprehensive... BMJ. 1993 Dec 4;307(6917):1494–1494. doi: 10.1136/bmj.307.6917.1494-b. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Meran J. G. Ethics of consent for babies in randomised clinical trials. Lancet. 1995 May 27;345(8961):1370–1370. [PubMed] [Google Scholar]
  8. Modi N. Informed consent in clinical trials. Informed consent difficult in paediatric intensive care. BMJ. 1993 Dec 4;307(6917):1495–1495. doi: 10.1136/bmj.307.6917.1495-b. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. O'Rourke P. P., Crone R. K., Vacanti J. P., Ware J. H., Lillehei C. W., Parad R. B., Epstein M. F. Extracorporeal membrane oxygenation and conventional medical therapy in neonates with persistent pulmonary hypertension of the newborn: a prospective randomized study. Pediatrics. 1989 Dec;84(6):957–963. [PubMed] [Google Scholar]
  10. Snowdon C., Garcia J., Elbourne D. Making sense of randomization; responses of parents of critically ill babies to random allocation of treatment in a clinical trial. Soc Sci Med. 1997 Nov;45(9):1337–1355. doi: 10.1016/s0277-9536(97)00063-4. [DOI] [PubMed] [Google Scholar]
  11. Tobias J. S. BMJ's present policy (sometimes approving research in which patients have not given fully informed consent) is wholly correct. BMJ. 1997 Apr 12;314(7087):1111–1114. doi: 10.1136/bmj.314.7087.1111. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Truog R. D. Randomized controlled trials: lessons from ECMO. Clin Res. 1992 Oct;40(3):519–527. [PubMed] [Google Scholar]
  13. Zelen M. Randomized consent designs for clinical trials: an update. Stat Med. 1990 Jun;9(6):645–656. doi: 10.1002/sim.4780090611. [DOI] [PubMed] [Google Scholar]

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