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Updated: Jun 21, 2026

Ole Isacson: Development of New Therapies for Parkinson's Disease
Published on: April 29, 2007
When and how should new therapies become routine clinical practice?
1Norwegian School of Sport Sciences, Oslo, Norway. kari.bo@nih.no
Abstract:
The process by which new therapies enter clinical practice is frequently suboptimal. Often, ideas for new therapies are generated by clinical observations or laboratory studies; therapies based on those ideas may enter clinical practice without any further scrutiny. As a consequence, some ineffective practices become widespread. This article proposes a six-stage protocol for the implementation of new therapies. Hypotheses about therapy based on preclinical research should be subject to clinical exploration and pilot studies prior to rigorous assessment with randomised clinical trials. If randomised clinical trials suggest that the intervention produces clinically important effects, further randomised studies can be conducted to refine the intervention. New interventions should not be recommended, or included in teaching curricula, or taught in continuing education courses until their effectiveness has been demonstrated in high-quality randomised clinical trials.
Insights
Implementing new therapies requires a rigorous, staged approach. A six-stage protocol ensures new treatments are thoroughly evaluated through clinical trials before widespread adoption, preventing ineffective practices.
Area of Science:
- Clinical research methodology
- Evidence-based medicine
- Health services research
Background:
- Current processes for introducing new therapies into clinical practice are often suboptimal.
- Ineffective treatments can become widespread due to insufficient scrutiny of new therapeutic ideas.
- A structured protocol is needed to improve the implementation of novel interventions.
Purpose of the Study:
- To propose a standardized six-stage protocol for the implementation of new therapies.
- To outline a pathway from preclinical research to evidence-based clinical practice.
- To advocate for rigorous evaluation before widespread adoption of new interventions.
Main Methods:
- The proposed protocol involves six distinct stages.
- It emphasizes clinical exploration and pilot studies following preclinical research.
- Rigorous assessment using randomized clinical trials (RCTs) is central to the protocol.
- Further RCTs are recommended for intervention refinement if initial trials show promise.
Main Results:
- The protocol provides a framework for systematically evaluating new therapies.
- It prioritizes evidence generation through phased clinical trials.
- The approach aims to ensure that only effective interventions are adopted into practice.
Conclusions:
- New therapeutic interventions must undergo thorough evaluation via high-quality randomized clinical trials.
- Recommendations, teaching, and continuing education should be based on demonstrated effectiveness.
- Adoption of a standardized protocol can enhance patient safety and treatment efficacy.
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