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Explore end-to-end solutions throughout development — from portfolio optimization and regulatory strategy, to Phase I-IV clinical trials, market access planning, and more.

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Parexel Biotech provides the end-to-end capabilities you’ll need to succeed. We're fast, flexible, and dedicated to impacting patient lives.

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Utilize our expertise across therapeutic areas, combining innovative trial designs, leading clinical and regulatory expertise, global reach, and a passion for changing patient lives.

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Therapeutic Expertise

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New Medicines, Novel Insights

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New Medicines, Novel Insights: Achieving patient-guided drug development

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Thinking about joining a clinical trial? Learn the drug development process, what it’s like to participate, how to find a trial, and answers to frequently asked questions.

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Want to collaborate with us to offer clinical trials at your site? We would welcome the opportunity to discuss.

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We are one of the largest CROs in the world, speeding life-changing medicine to market by engaging patients With Heart™. Learn about who we are, what we do, and what we believe.

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BIO

Trent Klettner

Clinical Operations Leader

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Trent has more than 8 years of experience in the clinical research industry, including Global Clinical Trial Manager, Project Manager, and on-site CRA. Experience in Phase I-IV studies. His experience spans multiple therapeutic areas, including ophthalmology, cardiovascular, dermatology, gastrointestinal, endocrinology, oncology, respiratory, and infectious diseases. Trent's ophthalmology experience specifically includes pediatric retinal dystrophy gene therapy.