Acute Effects of an Herbal Tea on Immune Surveillance and Activation.
Completed · Not applicable
Conditions studied: Active Immune Response
In brief
A small cross-over trial on 24 people involving an herbal tea blend to test whether consuming 1 cup of tea triggers changes in the numbers of natural killer cells in the blood circulation as evidence of immune cell trafficking within 2 hours.
Key facts
- Study ID
- NCT04491461
- Run by
- Natural Immune Systems Inc
- People needed
- 12
- Starts
- 2020-07-27
- Expected to finish
- 2021-12-19
- Last updated by the study team
- 2022-09-27
Who can join
Age: 18 and older, up to 75. Sex: any. Healthy volunteers: accepted.
You may qualify if…
- Healthy adults;
- Age 18-75 years (inclusive);
- Veins easy to see in both arms (to allow for the multiple blood draws);
- Willing to comply with a 24-hour wash-out period for vitamins and nutritional supplements;
You may not qualify if…
- Previous major gastrointestinal surgery (absorption of test product may be altered) (minor surgery not a problem, including previous removal of appendix and gall bladder);
- Taking anti-inflammatory medications on a daily basis;
- Currently experiencing intense stressful events/ life changes;
- Currently in intensive athletic training (such as marathon runners);
- Currently taking antipsychotic medications such as clozapine, Risperdal, Abilify, Zyprexa or Seroquel;
- Actively depressed;
- An unusual sleep routine (examples: working graveyard shift, irregular routine with frequent late nights, studying, partying);
- Unwilling to maintain a constant intake of supplements over the duration of the study;
- Anxiety about having blood drawn;
- Women of childbearing potential: Pregnant, nursing, or trying to become pregnant;
- Known food allergies related to ingredients in active test product.
Where it is running
- Gitte Jensen — Klamath Falls, Oregon, United States
Full record on ClinicalTrials.gov
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