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Über uns

Founded in 2005, Clariness is a global provider of online patient recruitment, retention, patient surveys, study feasibility and site selection services for clinical trials. Using our ClinLife® technology platform, we recruit patients efficiently, support investigative sites through the enrollment process and accelerate clinical trial start-up timelines for sponsors. With focused expertise in digital and social outreach techniques, and a team of clinical specialists, Clariness has built a reputation on global expertise, cost-effective strategies and reliable service delivery. Operational in more than 40 countries, nearly 1,000,000 patients worldwide participate in our ClinLife® community.

Publish your clinical trial with ClinLife® – the Internet platform for clinical studies.

ClinLife® is the premiere internet address for potential clinical trial volunteers, where clinical studies can be viewed 24 hours a day, 7 days a week. ClinLife® is not only the largest European patient website for clinical trials but also:

  • One of the largest clinical trial communities with nearly 1 million patients registered
  • a patient recruitment platform that includes the functionality of online registration, online screening and automatic referral to investigator sites
  • the most cost efficient recruitment tool providing cost savings of 25-50% vs. other media
  • ready to go for your trials
Consider Clariness if

You want to increase awareness of your trial?
We strategically place your study in search engines (e.g. Google, Yahoo, etc.) and social media; locally, nationally or internationally, without waste circulation.

You want to reach the right patient population?
Learn how our online advertisements, using our targeting tools, can reach your trial population faster and more effectively.

You want to improve pre-screening quality?
Take advantage of our online screening process and benefit from our indication-specific newsletters sent to ClinLife® patients and patient organizations.

We specialize in the following areas:

  • Patient Recruitment
  • Patient Retention
  • Site Selection
  • Patient Surveys
  • Clinical Trial Feasibility


Clariness GmbH
Schillerstraße 44
22767 Hamburg

Verantwortlich für den Inhalt:
Henning Sievert: 040 298 678 04

Geschäftsführer: Michael Stadler
Handelsregister: Amtsgericht Hamburg, HRB 108294
UST-IdNr. DE248331129