Clinical Research Site Experience Suggests Five Times Higher Response Over Email

San Francisco, CA, January 8, 2015 – In a case study recently published in Applied Clinical Trials a text messaging campaign designed and implemented by Mosio, Inc. was used to accelerate patient enrollment in a vaccine clinical trial. Use of Mosio’s mobile-health approach achieved a 1% increase in research subjects enrolled for every 1.5% increase in text messages sent. Over an 8-week enrollment period, a total of 1,541 text messages sent resulted in screening of 795 patients and enrollment of 265 patients.

“The minute we sent the texts, we would immediately get a lot of calls,” reported Mazen Zari, Co-Founder, Acting VP and Director of Operations for Johnson County Clin-Trials, a clinical research facility in Lenexa, KS, that operates 10-15 vaccine clinical trials per year. “It was not double or triple, but five times the response compared to e-mail. Our enrollment results exceeded the trial sponsor’s expectations.”

“This study has demonstrated that text messaging through a strategic and powerful patient engagement platform is an effective tool to engage patients for clinical trial recruitment and enrollment by connecting with participants on the devices they use every day,” commented Noel Chandler, Co-Founder and CEO of Mosio.

Patient recruitment, retention, and medication adherence continue to be challenges in conducting effective clinical trials. In one study that typifies the subject retention challenge, nearly 17% of study patients dropped out, with a mean cost of approximately $4,000+ per dropout.1 In investigational product trials, non-adherence rates of 20%-30% require a 50% increase in clinical trial sample size to maintain equivalent statistical power, while a 50% non-adherence rate requires a 200% increase in sample size.2

While clinical trials often rely on email recruitment, recent studies suggest that only 22% of emails are read.3 Alternatively, 98% of text messages are read3 and 90% of text messages are read within the first three minutes of receipt.4

Additional studies have evaluated the impact of Short Messaging System (SMS) in healthcare settings, such as appointment reminders and medication adherence. Results have demonstrated that SMS intervention significantly improved patient behavioral outcomes: Patients who received SMS reminders were more likely to show up to appointments and on time,5 and patients who received SMS reminders were more adherent to medications and 94% considered the reminders useful.6

“We were initially concerned that patients weren’t going to find text messaging useful, but on the contrary, patients really liked it,” added Zari.

About Mosio, Inc.

Mosio’s mission is to help health and clinical research stakeholders maximize the power of mobile devices in an increasingly mobile world. The company’s two-way text messaging solutions for clinical research are designed to increase patient recruitment, engagement and retention and to improve medication adherence and compliance, by connecting with participants on the devices they use every day.

Mosio’s award winning Patient Engagement Platform enables researchers to engage and retain study participants through text message alerts, reminders, surveys and interactive “TextChat” features. The company’s commitment to quality and customer satisfaction is enforced by an effective, thorough software development process and a formal quality management system based on HIPAA and 21 CFR Part 11 compliance requirements. Mosio was a Winner in the 2014 Eli Lilly Clinical Trials Patient Engagement App Challenge as well as a SXSW Web Awards Winner, Mobile.


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Ed Stevens
[email protected]



  1. Methods to AnalyseCost Data of Patients Who Withdraw in a Clinical Trial Setting, Oostenbrink, Jan B., et. Al., PharmacoEconomics2003, Vol. 21 Issue 15
  2. Smith, Dorothy PharmD, Patient Nonadherencein Clinical Trials: Could There Be a Link to Post Marketing Patient Safety?, Consumer Health Information Corporation, October2011
  3. Frost & Sullivan 2010, Epsilon 2009
  4. http://www.tatango.com/blog/90-of-text-messages-are-read-within-3-minutes/
  5. Use of mobile telephone short message service as a reminder: the effect on patient attendance, Sumanth Prasad and Richa Anand, International Dental Journal 2012; 62: 21-26
  6. Sahar Khonsari, et al., Effect of a reminder system using an automated short messaging service on medication adherence following acute coronary syndrome.  Eur J Cardiovasc Nurs. published 02, February 2014


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