• 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
    • Wonderful!

      Everyone is so friendly each time I have an appointment.

      -Gloria, Study Participant
    • Well executed, punctual. 

      Good job, keep up the good work.

      -Joel, Study Participant
    • 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
    • Educational, pleasant, concerned with my health, 

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

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

      ALL of you are great.

      -Jolene, 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
    • 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

    Allergies to Ragweed

    Future Studies

    About Allergies to Ragweed

    Ten percent of Americans have ragweed allergy. Additionally, if you are allergic to an inhaled allergen such as cat dander, mold or dust, there is a 75% chance that you will also be allergic to ragweed. Some persons may also have what is known as the Oral Allergy Syndrome, which is characterized by itching of the mouth after eating foods that share antigens with ragweed. These foods include melon, zucchini, sunflower seeds, bananas and cucumber.

    Pollen grains of ragweed are very small and are spread by the wind. A single plant produces a billion pollen grains. In the San Antonio/Hill Country region we see the first ragweed pollen at the end of August. Counts can be as high as 2000 grains per cubic meter, which is considered extremely high. Once ragweed begins pollinating, you can expect symptoms to last from six to eight weeks. 


    We are not currently enrolling for this indication at the present time, but please feel free to register for our studies online and we will contact you when we have a study available.