cutting-edge medicine while adding a new dimension to their experience and knowledge as physicians through
participation in clinical trials. HCRC is responsible for their training and certification in the Good Clinical Practice
guidelines developed by the International Conference of Harmonization to assure that they have acquired the
necessary knowledge to be Principal Investigators.
Dr. Cara Dawson
Dr. Dawson completed medical school at the University of Colorado Health Sciences Center with multiple honors,
She is a board certified Internist who completed her internship and residency in internal medicine at the University
of Colorado Health Sciences Center in June 2000.
She served as a Chief Medical Resident at the University of Colorado Health Science Center. Dr. Dawson has built
a successful, thriving private practice in Internal Medicine at Rose Medical Center. She remains an active clinical
faculty member at UCHSC teaching both residents and medical students. She also served on the quality
assurance committee for Rose Medical Center. She has been a member physician of a busy Internal Medicine
practice since 2000.
In 2007 Dr. Dawson decided to expand her career by joining Horizons Clinical Research Center as a Principal
Investigator and shortly thereafter received the training and certification in GCP/ICH provided by the center. She
has since been, or is presently, the Principal Investigator for a number of clinical studies including those for Chronic
Low Back Pain, Acute Low Back Pain, High Cholesterol, Overactive Bladder in Women, Type 2 Diabetes,
Hypertension with Type 2 Diabetes, Hypertension in Minorities, and Overactive Bladder in Men and Women.
She enjoys running, tennis, cooking and being with her three children and husband.
Her enthusiasm, energy, professionalism, ethical values and agreeable personality make her an invaluable
To learn about the current enrolling studies in internal medicine see internal medicine studies.
Center, and clinical professor of ObGyn at the University of Colorado Health Science Center since 1975.
Dr. Cooper did an internship in internal medicine at Kings County Hospital in New York from 1969 to 1970 followed
by two years of military service. As a medical officer he was stationed at the Colorado River Indian Tribes
Reservation in Parker, Arizona where he was responsible for obstetrics and gynecology, pediatrics, trauma, and
emergency medical services and inpatient/outpatient general medicine.
He did his residency in obstetrics and gynecology at the University of Colorado Health Science Center between
1972 and 1975, during which time he was chief resident from July 1, 1974 to June 30, 1975.
Dr. Cooper has sat on many professional committees and boards of director, and has held numerous staff
leadership positions during his career.
He joined Horizons Clinical Research Center, LLC in early 2008 and shortly thereafter received training and
certification in GCP/ICH guidelines. He has since been the Sub-Investigator on clinical studies for Endometriosis
and Overactive Bladder in women, and the Principal Investigator with clinical trials on Breast Pain, Post-
Menopausal Vaginal Atrophy, Post-Menopausal Osteoporosis, Endometriosis, and Post-Menopausal Hypoactive
Sexual Desire Disorder.
During his free time Dr. Cooper enjoys skiing, biking, travel, birding and photography.
Dr. Cooper’s extensive experience, professionalism, integrity, kindness, and enthusiasm for his profession and
clinical research make him an excellent physician and Principal Investigator.
David J. Kerr, MD has been in the private practice of dermatology at Rose Medical Center since 1977.
Dr. Kerr did his internship at St. Joseph Hospital in Denver, CO (1973-1974). This was followed by a residency in
dermatology at the University of Oregon Health Sciences, Portland Oregon (1974-1977).
During residency Dr. Kerr worked as a part-time emergency room physician as well as a part time clinic physician at
Multnomah County Hospital in Portland.
Dr. Kerr has participated in the Health ONE rural support program and has maintained a part time practice in
Scottsbluff, Nebraska since 1980.
He is also the Chairman of the Department of Dermatology at Columbia Rose Medical Center and he is a member
of the American Academy of Dermatology and the Colorado Dermatologic Society. Dr Kerr has extensive
experience in the evaluation and treatments of many skin conditions such as teen-age and adult acne, psoriasis,
general dermatitis, alopecia, skin cancer, rosacea, rashes, treatment of spider veins - legs and face, and of
growths such as moles, cysts, skin tags, and warts among others.
He joined Horizons Clinical Research Center, LLC in 2007 and shortly thereafter received training and certification
in GCP/ICH guidelines. He has since been, or is presently, the Principal Investigator on a number of clinical trials
including several each for Actinic Keratosis, Atopic Dermatitis, Psoriasis and Acne.
His hobbies include physical fitness, photography, wood-working, and cooking.
His considerable experience, professionalism, compassion, enthusiasm, ethics, and authentic pleasant personality
make him an exceptional physician and Principal Investigator.
To learn about the current enrolling studies in dermatology see dermatology studies.
Nancy Krywonis, MD is originally from Canada and it is at the University of Manitoba in Canada where she obtained
her Medical Doctorate in 1984. She also did her Internship in Mixed Medicine (1984-1985) and her residency in
Internal Medicine (1985-1986) at the same University. She did her Residency in Dermatology later at the University
of Minnesota (1986-1989). She has been a board certified Dermatologist in both Canada and the United States
From 1989 to 1992 she was an attending physician and assistant professor at the Veterans Affairs Medical Center
at the University of Minnesota. Then for the next 13 years she was in private practice at the Metropolitan
Dermatology and Cutaneous Surgery, PA in Wayzata, Minnesota.
After moving to Denver with her family she worked with two local Dermatology practices, Health Mark and
Canterbury Wellness until she started her own practice, “SkinCare Colorado”, in 2010. Her practice is conveniently
located in the Rose Medical Center just two blocks from Horizons.
Dr. Krywonis has been a member of the American Academy of Dermatology since 1989 and a member of the
Colorado Dermatology Society since 2005. She began working with Horizons as a Principal Investigator in 2012 and
has since successfully conducted several studies in plaque psoriasis, atopic dermatitis, and actinic keratosis.
Dr. Krywonis’ high energy and enthusiasm for research and her studies communicates itself to everyone from our
patients to all the staff here at Horizons. Her expertise and many years of experience in Dermatology also serve her
well as a Principal Investigator. It is a true pleasure having her on our team.