DAaCRO is a contract research organisation founded by Juliane Hellhammer in 2006 as a spin-off of the University of Trier, Department  for Psychobiology. DAaCRO specialises on conducting clinical trials with the Trier Social Stress Test (TSST) and psychoneuroendocrine reactivity in humans. The TSST was published in 1993 by Kirschbaum, Pirke & Hellhammer and is regarded as the gold standard for laboratory stress tests in humans involving a reaction of the hypothalamus-pituitary-adrenal-axis (HPAA).
Another expertise of DAaCRO originates from the scientific pioneer work achieved at the University of Trier such as the development of hormonal analyses in saliva. Today, DAaCRO offres saliva analyses for cortisol, α-amylase, estradiol, testosterone, progesterone, DHEA and others.
DAaCRO’s team includes 13 employees in permanent positions plus 14 freelancers including scientists, study nurses and quality management. The institute runs several clinical trials per year on its site in Trier and participates in several studies at other locations.

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