• Staff is awesome!

    I would recommend you to join a study.

    -Cynthia, Study Participant
  • The friendliness of the staff, they validate parking if you park in the parking garage, very professional!

    I do recommend this research group!

    -Rosie, Study Participant
  • Your staff, including the parking attendant, are extremely welcoming and make me forget I'm here for a Doctor's visit.

    -Yvonne, Study Participant
  • Staff was very courteous

    -Leticia, Study Participant
  • Outstanding service and very friendly staff

    -Joseph, Study Participant
  • Every employee here has been polite, friendly and very kind.

    Really Enjoyed meeting everyone here.

    -Alex, Study Participant
  • Thanks for the important work you are doing. 

    ALL of you are great.

    -Jolene, Study Participant
  • It is a pleasure working with such a dedicated research team 

    and I would definitely like to collaborate with your site on future trials. I sincerely appreciate all of the efforts made to date on our studies!

    -GSK Monitor
  • Very pleasant and friendly staff.

    They are very considerate to make every effort to make me comfortable.

    -Ralph, Study Participant
  • I am never anxious on visits; 

    very helpful staff.

    -Donald, Study Participant
  • The staff is extremely welcoming and supportive

    Everyone is aware of their responsibilities, knowledgeable of research and very cooperative. The entire organization is well run from the top down. This is my favorite site to work with!

    -Novum Monitor
  • Everyone is friendly and very informative.

    They explain all procedures and why. The staff is courteous and friendly and they listen. They ask often if you need anything, are friendly and smiling. A smile always goes a long way, even when you don’t feel like smiling.

    -Diane, Study Participant
  • Awesome!

    -GSK Monitor
  • Well executed, punctual. 

    Good job, keep up the good work.

    -Joel, Study Participant
  • Laura R, Dr. Holcomb and the rest of the staff are super professionals! 

    Happy to be part of this study; will recommend this clinic to others!

    -Lou, Study Participant
  • Study Coordinators were very responsive to my emails 

    and requests for study questions. Staff at the site is very friendly and accommodating. Patients' charts are very well organized and complete

    -Quintiles Monitor
  • Wonderful!

    Everyone is so friendly each time I have an appointment.

    -Gloria, Study Participant
  • Lisa Lopez and the entire staff are extremely professional, courteous, welcoming, etc. 

    I never felt I was in a doctor’s office; it felt like being at home.

    -Sara, Study Participant
  • The staff was friendly and knowledgeable. 

    Principal Investigator was available to meet and showed oversight in source. Data and regulatory binders were clean and well maintained.

    -Wyeth Monitor
  • The staff is upbeat, friendly and positive. 

    Very willing to make the testing sessions as comfortable as if one is at home. The staff treats me with care, compassion and understanding.

    -Mary Ann, Study Participant
  • This site does quality work 

    and pays attention to detail. Data corrections are usually handled quickly. All staff seem organized and are conscientious about their work.

    -Sanofi Monitor
  • Educational, pleasant, concerned with my health, 

    as well as the study performance. A combination of professional and a concerned family.

    -Michael, Study Participant


Expertise in Vaccines Research

Diagnostics Research Group has participated in vaccine research studies of

  • Influenza
  • Herpes Zoster
  • Pneumonia
  • Intestinal Virus
  • Respiratory Syncytial Virus (RSV)
  • Dengue Fever
  • Ebola
  • Cytomegalovirus (CMV)

We have met our enrollment goals in every vaccine study.

Facility Resources for vaccine studies

  • Specialized Vaccine Refrigerator with emergency power back-up
  • Refrigerated Centrifuge
  • Minus 80 Degree Freezer with emergency back-up power

Expertise in Respiratory Disorders

Diagnostics Research Group has participated in research studies of

  • Allergy/Asthma
  • Asthma
  • COPD
  • Acute Exacerbation of Chronic Bronchitis
  • Chronic cough
  • Diagnosis of Lung Carcinoma
  • Medical Devices
  • Severe Sepsis
  • IV Infusion Studies
  • Adult Respiratory Distress Syndrome
  • Pulmonary Fibrosis
  • Arterial Pulmonary Hypertension
  • Intravenous Sedation
  • Vaccines

Expertise in Internal Medicine

Diagnostics Research Group has participated in research studies of

  • Constipation
  • Abdominal pain
  • Osteoarthritis
  • Hypertension
  • Vaccines
  • Irritable Bowel Syndrome

Board Certified Physicians
Our two Physician Investigators are Board Certified in Internal Medicine.

Expertise in Allergic Disorders

Diagnostics Research Group has participated in research studies of

  • Seasonal Allergic Rhinitis
  • Ragweed
  • Mountain Cedar
  • Spring Allergens
  • Perennial Allergic Rhinitis
  • Nasal Allergen Challenge

Mountain Cedar Allergens
Cedar pollen season occurs from December to February in San Antonio and the surrounding hill country of Texas, providing study milieu with an incredibly dense antigen during a unique time of the year. This combination allows pharmaceutical sponsors to successfully perform large studies in very brief periods in the winter. We have enrolled as many as 200 participants in a Mountain Cedar study at the request of a sponsor.

Expertise in Patient Recruitment

We have a searchable database of over 20,000 participants

Our full-time Patient Recruitment staff utilizes our substantial in-house patient database as a significant source of recruitment, allowing us to quickly and efficiently recruit participants meeting a wide range of research criteria.

Our database allows searches based on historic skin testing results and allergic symptoms.

San Antonio, Texas is one of the top cities in the United States for allergens. Our comprehensive database includes a large number of participants who will volunteer to participate in SAR and PAR studies.

Our patients are from diverse backgrounds and drawn from a San Antonio metropolitan population of 2.14 million and a referral area of 3.5 million.

Our center specializes in clinical trials for:
  • Abdominal Pain
  • Allergy Medications
  • Allergic Rhinitis
  • Antibiotics
  • Antihistamines
  • Antihypertensives
  • Asthma
  • BCP’s
  • Bronchitis
  • Bronchodilators
  • Constipation
  • COPD
  • Diabetes
  • Diagnosis of Carcinoma
  • Dyslipidemia
  • Dyspepsia
  • HRT
  • Hypercholesterolemia
  • Hyperlipidemia
  • Hypertension
  • Inhaled and Nasal Corticosteroids
  • Insomnia
  • Intravenous sedation
  • Irritable bowel syndrome
  • Metabolic Syndrome
  • Obesity
  • Osteoarthritis
  • Osteoporosis
  • Pollen chamber experience
  • Pulmonary Fibrosis
  • Respiratory Medications
  • Sleep Medications
  • Smoking Cessation
  • Sputum/Cytology
  • Stress Urinary Incontinence Medications
  • Vaccines