Ishida, Shu, Kagan, Brett J., Kataoka, Masanori, Koplin, Julian, Porsdam Mann, Sebastian, Lewis, Jonathan, Browning, Heather, Erier, Alexandra, Feroz, Fasal, Fukushi, Tamami, Holm, Søren, Kokubo, Masatoshi, Latham, Stephen, Lavazza, Andrea, Lee, Ilhak, Lee, Tsung-Ling, Lyreskog, David, Menikoff, Jerry, Niikawa, Takuya, Nagaishi, Naoya, Nakazawa, Eisuke, Ong, Serene, Ota, Koji, Register, Christopher, Veit, Walter, Yeo, Shang Long, Sawai, Tsutomu, Savulescu, Julian and Earp, Brian (2025) Ethics and regulation of human brain organoid research: recommendations from the Asia Pacific Neuroethics Working Group. Asian Bioethics Review. (In Press)
Abstract
Human brain organoids (HBOs) are three-dimensional structures derived from human stem cells that model aspects of brain development and function, offering potentially unprecedented opportunities for studying neurological disorders and for developing treatments. This consensus paper presents recommendations from the Asia Pacific Neuroethics Working Group, developed through interdisciplinary collaboration among scientists, bioethicists, philosophers, and legal scholars who convened in Singapore in November 2024. We provide a comprehensive analysis of the ethical, legal, and sociocultural dimensions of HBO research, addressing both current realities and future possibilities.
The paper examines key ethical considerations including the potential moral status of HBOs, particularly regarding sentience and consciousness, while identifying and dispelling common misconceptions and "ethical red herrings" arising from sensationalized portrayals. We analyze consent frameworks for cell donation, privacy concerns, dual-use risks, and questions of distributive justice. Legal challenges are explored, including the categorical ambiguity of HBOs within existing regulatory frameworks, intellectual property issues, and cross-border inconsistencies in standards. Sociocultural perspectives emphasize the importance of public understanding, cross-cultural engagement, and empirical research on diverse community attitudes toward HBO research. In our recommendations we advocate for evidence-based ethical discussions, anticipatory frameworks addressing potential future developments, contextualized analysis comparing HBOs to related experimental models, robust informed consent processes, proportionate responses to consciousness concerns, development of adaptive regulatory frameworks, responsible science communication to manage public expectations, and sustained interdisciplinary collaboration. We emphasize a balanced approach that promotes scientific innovation while maintaining rigorous ethical oversight, recognizing HBOs' significant potential for advancing neuroscience and medicine. This represents the first comprehensive ethical framework for HBO research from the Asia Pacific region, helping to establish foundational principles for responsible development of this rapidly advancing field.
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