MORRISVILLE, N.C.--(BUSINESS WIRE)--April 10, 2006--etrials® Worldwide, Inc. (Nasdaq: ETWC - News, ETWCW - News, ETWCU - News), an eClinical software and services company focused on people, process and technology to meet the needs of the pharmaceutical industry, has signed an agreement with an existing client and top ten pharmaceutical company to incorporate etrials electronic patient dairy technology to capture patient reported outcomes (ePRO) in several upcoming studies.