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Equisetum tea in patients with inflammatory rheumatic diseases - an observational surveillance

Equisetum tea in patients with inflammatory rheumatic diseases - an observational surveillance - EquiRheu

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00038830
Enrollment
15
Registered
2025-12-23
Start date
2026-02-11
Completion date
Unknown
Last updated
2026-03-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic inflammatory diseases, such as rheumatoid arthritis, lupus erythematosus, scleroderma, polymyalgia rheumatica, ..

Interventions

Group 1: Arm 1: 300 ml Equisetum tea for 4 weeks

Sponsors

Universitätsklinikum Freiburg Innere Medizin II / Uni-Zentrum Naturheilkunde
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: - Men and women aged >18 years with a specialist-confirmed inflammatory rheumatic disease - Measurable disease activity (warm, swollen joints and/or elevated inflammatory markers (e.g., serum CRP)) - Intensification of therapeutic measures with conventional medications within the 6-week study period, either not planned from a medical perspective or not desired by the patient - Obtained written informed consent prior to enrollment in the study

Exclusion criteria

Exclusion criteria: - Severe activity of the inflammatory rheumatic disease requiring, or already planned for, intensification of therapy according to guidelines within 6 weeks - Severe comorbidities that are the primary concern (e.g., advanced cancer, severe psychiatric illness with pronounced psychopathological changes (e.g., delusions, hallucinations, severe affective disorders), usually long-lasting or recurrent, which impair social, occupational, and daily functioning and require specialized psychiatric-psychotherapeutic treatment) and which, in the opinion of the study director, preclude participation in the study - History of drug or alcohol abuse >20g/day (equivalent to 0.5 L beer or 0.25 L wine) - Pregnancy and breastfeeding - Inability to understand the study, e.g., due to language barriers - Participation in another clinical trial within the last 6 weeks.

Design outcomes

Primary

MeasureTime frame
What? Is it feasible to take 300 ml of silica-rich Equisetum tea daily for 4 weeks? When? After week 2 and week 4. How? The feasibility of daily intake is assessed using a Likert rating: 1 = not feasible, 2 = feasible.

Secondary

MeasureTime frame
What? - Tolerability - Safety - Disease activity When? Baseline examinations on day 1, after 2 and 4 weeks, and a final examination 2 weeks after completing the tea regimen. How? - Tolerability: measured using a Likert-style scale: 1 = very poorly tolerated, 2 = poorly tolerated, 3 = moderately tolerated, 4 = well tolerated, 5 = very well tolerated - Safety: complete blood count, gamma-glutamyltransferase (GGT), aspartate aminotransferase (GPT), creatine kinase (CK), creatinine, urea, electrolytes (sodium, potassium, calcium) - Disease activity: CRP, disease-specific questionnaires (DAS28, SLEDAI)

Countries

Germany

Contacts

Public ContactRoman Huber

Universitätsklinikum Freiburg Innere Medizin II / Uni-Zentrum Naturheilkunde

roman.huber@uniklinik-freiburg.de+49761/270-82010

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Mar 14, 2026