Western States Clinical Research, Inc.

Center Information

Cheri Casey
Western States Clinical Research, Inc.
Clear Creek Office Park
4251 Kipling St., Suite 540
Wheat Ridge, CO 80033

Currently Enrolling Trials

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Therapeutic Areas

Cardiology/Vascular Diseases
Family Medicine
Internal Medicine
Pulmonary/Respiratory Diseases

Performance Metrics

Number of Studies Conducted: 280
Number of Active Patients in the Database: 2000
Regulatory Submission Turn-Around Time: 3 Week(s)


Western States Clinical Research, Inc. is a research site consisting of an independent study coordinating group working with a select group of principal investigators in several therapeutic areas. We participate in Phase II, III and IV clinical research trials for the pharmaceutical industry.

Our qualified research subject database currently includes 2000 potential study participants (already pre-screened) for the following indications: seasonal and perennial allergic rhinitis, asthma, gout, rosacea and severe eczema, acne, gastroesophageal reflux disease, diabetes (primarily Type 2; many with neuropathy), COPD, migraine headache, irritable bowel syndrome, constipation, hypertension, hypercholesterolemia, ulcerative colitis, crohns, over active bladder, osteoarthritis, endometriosis and NASH. In addition, we are always adding more potential study participants from the physicians' practices of over 50,000 patients.


Our center has been involved in research since 1991, when Western States Clinical Research, Inc. was created to provide experienced clinical research coordinating for principal investigators and sponsors. We focus on Phase II, III, & IV clinical trials in the following therapeutic areas:

  • allergy & asthma
  • gastroenterology
  • pulmonology
  • family practice
  • dermatology
  • ophthalmology
  • internal medicine
  • women’s health

Pharmaceutical sponsors we have worked with recently include the following:
Abbott Laboratories, Actelion, AltanaPharma, Amgen, ARYx Therapeutics, Basilea Pharmaceuticals, BoehringerIngelheim, Bristol-Myers Squibb, Daiichi Sankyo, Depomed, Forest Research Institute, GlaxoSmithKline, Novartis, Otsuka Maryland Research Institute, Perrigo Israel, Pfizer, Sangamo Biosciences, Sanofi Aventis, Schering Plough/Merck, Circassia, Pearl, Genentech, Sanofi, Astra Zeneca, Takeda, TEVA, Theravance, Tioga, AbbVie, 3m, Chiesi, Amphastar, Gilead and Intercept.


Western States Clinical Research, Inc. is located in the suburbs of Denver, Colorado close to two major hospitals. Our 2,200 square foot office provides ample space for patient visits, locked drug storage, CRC work areas and monitors' visits. Archived study materials are stored at an off-site location nearby. Our equipment includes a centrifuge for preparing lab samples, an ECG machine, pulmonary function machines, a FAX machine, one copier, computers with a high-speed cable Internet connection, and refrigerators for refrigerated drug and frozen lab sample storage. Principal investigators' offices are located within a 7-mile radius of our office.

We are 40 minutes from the Denver International Airport, 20 minutes from downtown Denver, 25 minutes from Boulder and, when roads are clear, less than an hour from the Continental Divide. Nearby accommodations include the Denver Marriott West and the Sheraton Denver West, as well as numerous hotels located in the downtown Denver area.

Fort Collins and Colorado Springs, two other major population centers, are located along Interstate 25 about one hour north & south of Denver, respectively.


Jeffrey S. Rumbyrt, M.D. - Allergy & Asthma
(Board Certified: Internal Medicine; Allergy andImmunology)
45 studies

Robert Benkert, M.D. - Pulmonology
(Board Certified: Internal Medicine; Pulmonology; CriticalCare)
31 studies

Kathleen Sawada, M.D. - Dermatology
(Board Certified: Dermatology)
16 studies (plus 6 studies as sub-investigator)

William L. Elzi, M.D.. - Internal Medicine
Board Certified in Internal Medicine
18 studies

David Leon, M.D.- Internal Medicine
Board Certified in Internal Medicine
3 studies

Melinda O’Rourke M.D.-Ophthalmology
5 studies

John Goff, M.D.-GI
35 studies

Rajesh Jain, M.D.
6 studies


Cheri Casey, CCRC - Director; clinical research experiencesince 1988
(Training: respiratory therapy, business administration)

Mary Reid, CCRC, BS - Study Coordinator; Clinical research experiencesince 2000
(Training: health sciences)

Brianna Wronski, BA - Study Coordinator and Subject Recruitment, Clinical research experience since 2013
(Training: social work, health science).

Falon Bird, MPH,- Study Coordinator and social media expert research
experience since Feb 2016


We recruit study volunteers from the 2.4 million population of the greater Denver metro area.

Caucasians and Hispanics are the dominant groups of people living in both the Denver and Fort Collins areas, with Asians and Blacks also represented. Hispanic and Asian volunteers are English-speaking. We find most of our study volunteers to be well-educated. Access to good transportation is not a problem. Although it is rarely necessary, we are prepared to provide qualified patients with taxi or bus fare.

We locate study subjects through the principal investigators' practices, newspaper and radio advertisements, and referrals from the medical community. We are also contacted regularly by Internet users who are interested in volunteering for studies. We have found a cooperative, motivated population of potential study volunteers to be present in the Denver area, which contributes greatly to our success in achieving enrollment goals.

Contact Center

If you are interested in contacting this center to discuss clinical trials, please complete and send the email form below. A representative from the research center will then follow up with you.