---
title: Demystifying Clinical Study Designs for Probiotics
description: In a guest post for the International Probiotics Association, Josh Baisley discusses key learning points from probiotic clinical trials in antibiotic-associated diarrhea
---

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# Nutrasource Blog

## [Demystifying Clinical Study Designs for Probiotics](https://blog.nutrasource.ca/blog/demystifying-clinical-study-designs-for-probiotics)

Posted by Josh Baisley, B.Sc., Vice President, Clinical Design & Delivery on Wed, Oct 12, 2016

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As the probiotic segment continues to trend upward, more companies are investing in well-designed [clinical trials](http://www.nutrasource.ca/clinical-trials/default.aspx) to support efficacy.

One area that has presented substantial learning opportunities, and has helped shape the future of probiotic clinical trials, is the study of **antibiotic associated diarrhea (AAD) and probiotic intake.**

In a [new guest post for the International Probiotic Association (IPA)](http://internationalprobiotics.org/clinical-study-designs-antibiotic-associated-diarrhea-moving-forward/), Josh Baisley, Associate Director of Clinical Trials at Nutrasource, discusses key learning points in this emerging field of study. These include guidance on how to:

- Understand potential confounding factors that could compromise a trial
- Define, measure and analyze appropriate study endpoints
- Choose an appropriate population for the health indication
- Better interpret and use a study's results

**[Read the full post on IPA's blog here](http://internationalprobiotics.org/clinical-study-designs-antibiotic-associated-diarrhea-moving-forward/).**

*Looking for more information on clinical trials for probiotics? We can help! [Contact our team today](mailto:info@nutrasource.ca) or [submit a quote request](https://info.nutrasource.ca/get-a-quote) to provide details about your project.*

---

**![Josh-Baisley-c](https://blog.nutrasource.ca/hs-fs/hubfs/Josh-Baisley-c.png?width=150&name=Josh-Baisley-c.png)*Josh Baisley****, B.Sc., is Director of Domestic Clinical Trials at Nutrasource. With nearly 15 years of experience in quality assurance, clinical, pre-clinical, and regulatory affairs for the natural health products sector, Josh has been directly involved in over 65 clinical trials accounting for more than 10% of all clinical research applications received by Health Canada. Connect with [Josh on LinkedIn](https://www.linkedin.com/in/joshua-baisley-2365a19/).*

 Topics: [Clinical Trials](https://blog.nutrasource.ca/blog/topic/clinical-trials), [Probiotics](https://blog.nutrasource.ca/blog/topic/probiotics), [Dietary Supplements/Natural Health Products](https://blog.nutrasource.ca/blog/topic/dietary-supplements-natural-health-products)

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