Defining an appropriate ethical, social and regulatory framework for clinical xenotransplantation

Lebanese medical students' knowledge on and attitude toward xenotransplantation and its ethical issues: A cross-sectional study

INTRODUCTION

Xenotransplantation is the transplantation of animal parts into humans. This study's aim is to assess the Lebanese medical students' attitude toward xenotransplantation and their knowledge of its related ethical issues.

METHODS

A questionnaire was answered by 120 Lebanese medical students. Statistical analysis and ethical reflections were performed on the results.

RESULTS

Out of the 120 participants, 100 already knew about xenotransplantation, and 61.7% of the students believe that it is applied clinically. Only 25% trust that the animals need to be genetically modified for the organs to be eligible for transplantation. About 25.8% and 46.7% of the students, respectively, strongly agree that the patients' and physicians' beliefs play an important role in agreeing to the procedure. Students were likely to accept the animal organ for transplantation if the transplant could completely cure or improve the course of an untreatable disease (86.6% and 75.0%) or if the outcomes and risks were the same as with a human transplant with a shorter waiting period (71.7%). Students who agreed that animal rights and welfare/wellbeing should be respected tended to disagree with the statement that it is acceptable to use animals for human ends (p = .026).

CONCLUSION

Medical students proved to be knowledgeable on the ethical dilemmas related to xenotransplantation and showed a favorable attitude toward this procedure, which is crucial in its establishment as an absolute clinical reality in the near future and in the development and strengthening of research in this field.

Some ethical, social, and legal considerations of xenotransplantation

Xenotransplantation has changed its focus from solid organs to cells and tissues, and it is now mainly conceived of and regulated as a pharmaceutical product. Animal cell therapies are showing promising results and may involve fewer risks than organs. However, countries should be cautious about allowing xenotransplantation clinical trials to develop. Regulatory frameworks should contain specific conditions about the safety of the source animals, of the xenotransplantation product, and of the manufacturing process. In turn, these frameworks should ensure that preclinical studies indicate safety and efficacy of the procedure and that risk-management protocols are in place to identify, contain, and combat any outbreak of infection in a timely manner. The fragile balance between individual and collective rights and the tensions of globalization make necessary a coordinated international action to harmonize global practices in this field. Xenotransplantation clinical trials should be carried out in a context in which specific safety and ethical issues are addressed, and in an environment in which specific practices that facilitate public engagement as a form of shared responsibility for regulatory decision making are promoted as well.

Religious and ethnic influences on willingness to donate organs and donor behavior: an Australian perspective

CONTEXT

Globally, the demand for donated organs outstrips supply, meaning that there are both practical and theoretical reasons for examining factors that are predictive of individuals' willingness to donate their organs upon their death.

OBJECTIVES

To determine whether individuals of different religious denominations living in Australia have different views on organ donation, whether donation attitudes differ significantly across ethnic groups, and whether factors identified in international research are predictors of willingness to donate and actual donor behavior in this population.

PARTICIPANTS

Data for this study were collected from students at an Australian university from a range of religious and ethnic backgrounds, and their friends and relatives (N = 509). Intervention-Participants were administered the Organ Donation Attitude Scale, as well as additional attitudes and knowledge measures.

MAIN OUTCOME MEASURES

Self-reported "willingness to donate" and "donor behavior".

RESULTS

Our findings complemented those reported in comparable countries, with females, younger Australians, and those with high knowledge levels being more willing to donate than males, older persons, and those with low knowledge. Persons who described themselves as having stronger religious beliefs (particularly Buddhist and Islamic) held less favorable attitudes toward donation, had lower knowledge levels, and were more likely to oppose donation.

CONCLUSIONS

Although this study established that attitudes toward, knowledge about, and predictors of organ donation in Australia are similar to those reported elsewhere, donation rates remain low. Further in-depth research examining the impact of religion and culture on attitudes, beliefs, and behavior is essential when exploring strategies to improve organ donation rates in highly multicultural societies such as Australia.

Religious and Ethnic Influences on Willingness to Donate Organs and Donor Behavior: An Australian Perspective

Context

Globally, the demand for donated organs outstrips supply, meaning that there are both practical and theoretical reasons for examining factors that are predictive of individuals' willingness to donate their organs upon their death.

Objectives

To determine whether individuals of different religious denominations living in Australia have different views on organ donation, whether donation attitudes differ significantly across ethnic groups, and whether factors identified in international research are predictors of willingness to donate and actual donor behavior in this population.

Participants

Data for this study were collected from students at an Australian university from a range of religious and ethnic backgrounds, and their friends and relatives (N = 509).

Intervention

Participants were administered the Organ Donation Attitude Scale, as well as additional attitudes and knowledge measures.

Main Outcome Measures

Self-reported “willingness to donate” and “donor behavior.”

Results

Our findings complemented those reported in comparable countries, with females, younger Australians, and those with high knowledge levels being more willing to donate than males, older persons, and those with low knowledge. Persons who described themselves as having stronger religious beliefs (particularly Buddhist and Islamic) held less favorable attitudes toward donation, had lower knowledge levels, and were more likely to oppose donation.

Conclusions

Although this study established that attitudes toward, knowledge about, and predictors of organ donation in Australia are similar to those reported elsewhere, donation rates remain low. Further in-depth research examining the impact of religion and culture on attitudes, beliefs, and behavior is essential when exploring strategies to improve organ donation rates in highly multicultural societies such as Australia.

Regulatory issues in xenotransplantation: recent developments

PURPOSE OF REVIEW

This article reviews recent literature on regulatory issues of xenotransplantation, focusing primarily on current progress with transplantation of pancreatic islets for diabetic patients. The need for a global system that connects the national and international regulatory levels within a coherent framework is emphasized.

RECENT FINDINGS

Recent progress in preclinical xenotransplantation of pancreatic islets has enhanced the hopes of providing patients with safe and effective treatments from animal cells and tissues in the near future. At the same time the increasing number of clinical trials proposed and sometimes authorized calls for attention from regulatory authorities.

SUMMARY

Although the main regulatory aspects of xenotransplantation have been identified since the early 1990s, regulatory problems connected to the promising scientific data published in the field of pancreatic islets still require attention. In fact most normative issues, such as criteria for patients' enrollment in clinical trials and the management of safety measures have been primarily explored in relation to solid organ transplantation. Also the issue of animal rights has become more compelling in relation to the treatment of nonhuman primates in preclinical trials. In these rapidly evolving conditions the establishment of agreed guidelines at both the national and international levels remains the most urgent goal to be achieved.