About Clinical Research

Clinical ResearchClinical Trials are performed at our Centennial & Denver locations.


Colorado Allergy & Asthma Centers have participated in researching new treatments for individuals affected by allergies and asthma for over 40 years. Dr. David Pearlman, one of our founding physicians, has been involved in over 800 Phase I-IV clinical trials to develop or improve treatment options. Most patients who have participated in these trials with us have come directly from our practice.


If you are interested in participating in a research study, you must first complete the Clinical Research Questionnaire and someone from one of our research sites will contact you to determine if you are a good candidate for our current studies.


We appreciate your interest in the Clinical Research Division of our practice!


Clinical Research Links and Resources

Why Does CAAC Participate in Clinical Research?

  • To contribute to medical progress and advancement
  • To influence the future of drug availability and cost for our own and other patients
  • To remain at the forefront of knowledge in our profession and specialty, to provide the best and most up-to-date treatment for our patients
  • To make available to our patients otherwise unobtainable medications
  • To enable patients and medical staff to gain first-hand knowledge of promising new drugs and devices

Researching a drug or device from its discovery to the time it becomes available usually takes more than ten years! New treatments and medications developed by researchers are carefully tested for effectiveness and safety.

CAAC and our patients are proud that we have been an important part in helping to make the following drugs available to our patients:

  • Asthma
    • Ventolin
    • Intal
    • Tilade
    • Vanceril
    • Beclovent
    • Azmacort
    • Pulmicort
    • Advair
    • Symbicort
    • Alvesco
  • Asthma
    • Aerobid
    • Flovent
    • QVAR
    • Serevent
    • Foradil
    • Accolate
    • Singulair
    • Xopenex
    • Dulera
    • Astepro
  • Allergies
    • Claritin
    • Zyrtec
    • Allegra
    • Clarinex
    • Rhinocort
    • Nasacort
    • Flonase
    • Nasonex
    • Omnaris

Centennial Office/Administrative Site

14000 East Arapahoe Road, Suite 260
Phone: (303) 632-3646
Fax: (303) 632-3611
Principal Investigator:
Leon S. Greos, MD
Research Site Manager:
Stacy Wiseman, RN, CCRC

Denver Office

125 Rampart Way, Suite 150
(1 block east of Quebec Street and First Avenue, on northeast corner)
Phone: (720) 858-7510
Fax: (720) 858-7530
Principal Investigators:
David S. Pearlman, MD
Shaila U. Gogate, MD
Research Site Manager:
Annalise Sorensen, RN, BSN