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Taking Optogenetics into the Human Brain: Opportunities and Challenges in Clinical Trial Design
Michael White1, Michael Mackay1, Roger Whittaker1,2
1Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH, United Kingdom.
Open Access Journal of Clinical Trials
|September 2, 2021
Summary
Optogenetics uses light to control cell activity, showing promise for brain disorders like epilepsy. However, applying this neuroscience technique in the human brain faces significant technical and regulatory challenges for clinical trials.
Area of Science:
- Neuroscience
- Biotechnology
- Medical Technology
Background:
- Optogenetics, emerging in 2005, uses light to control sensitized cells, significantly advancing neuroscience.
- The technique is already in clinical trials for conditions like Retinitis Pigmentosa.
- Its application in the brain offers precise neuronal control for treating disorders such as epilepsy and schizophrenia.
Purpose of the Study:
- To review the rationale behind exploring optogenetics in the brain.
- To examine the obstacles and challenges in translating optogenetics from laboratory research to human brain applications.
- To discuss potential first-in-human clinical trial strategies from multiple stakeholder perspectives.
Main Methods:
- Review of current optogenetics research and development.
- Analysis of technical challenges including gene therapy and device implantation for brain applications.
- Exploration of clinical, regulatory, and ethical considerations for human trials.
Main Results:
- Optogenetics holds significant therapeutic potential for neurological and psychiatric disorders.
- Key challenges include the need for gene therapy, implantable devices, and precise optical stimulation.
- Successful translation requires interdisciplinary collaboration among scientists, engineers, and clinicians.
Conclusions:
- Optogenetics offers a powerful tool for understanding and treating brain disorders.
- Overcoming technical and regulatory hurdles is crucial for advancing optogenetic therapies in the human brain.
- Careful planning and stakeholder engagement are essential for initiating safe and effective first-in-human clinical trials.

