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Study identifier: NCT06721884 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Herbal Evaluation Of Artemisia Annua For Small Intestinal Bacterial Overgrowth

Condition: Small Intestinal Bacterial Overgrowth Syndrome (SIBO)  ·  Sponsor: National University of Natural Medicine

PhasePhase 1/Phase 2
Planned participants32
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

Small intestinal bacterial overgrowth (SIBO) can cause symptoms like bloating, stomach pain, and changes in bowel movements, significantly affecting quality of life. Many people with irritable bowel syndrome (IBS) also have SIBO, and there is growing recognition of how important it is to address this condition. Artemisia annua has shown potential in managing SIBO based on early reports and studies suggesting it can fight bacteria like \*E. coli\* and \*Klebsiella\*, which are linked to a type of SIBO that produces hydrogen gas. This study aims to test if Artemisia annua is safe and well-tolerated for adults with hydrogen-type SIBO. Over five weeks, participants will take either 5 grams of dried Artemisia annua leaves or a placebo. Researchers will monitor safety through blood tests, vital signs, and adverse events, and they will assess symptom changes using questionnaires and breath tests. The trial will include up to 32 participants from the Portland, Oregon area. Participants will be randomly assigned to treatment groups, and neither they, the researchers, nor the test administrators will know who is receiving the herb or the placebo. Results will be analyzed using standard statistical methods. This study addresses the lack of research on herbal treatments for SIBO. If successful, the findings could lead to larger studies and help expand treatment options for people with SIBO.

This description comes directly from the study's public registry record.

Talk to the study team

Joshua Z Goldenberg, ND  ·  503-552-1555  ·  jgoldenberg@nunm.edu

Always discuss trial participation with your own doctor first.

Locations (1)

Helfgott Research Institute - National University of Natural MedicinePortland, Oregon, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT06721884