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Effects of Curcuma longa, Piper nigrum and Camellia sinensis mixture on the symptoms of knee osteoarthritis

Study on the effects of Curcuma longa, Piper nigrum and Camellia sinensis extract mixture on the symptoms of knee osteoarthritis: a randomized controlled trial

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
IRCT
Registry ID
IRCT20080901001157N24
Enrollment
60
Registered
2026-05-09
Start date
2026-05-21
Completion date
Unknown
Last updated
2026-06-01

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

Conditions

Osteoarthritis. Osteoarthritis, unspecified site

Interventions

Intervention 1: Intervention group: Patients will orally take one 500 mg capsule of the herbal mixture (Curcuma longa, Piper nigrum and Camellia sinensis) produced by the Medicinal Plants Research Cen

Sponsors

Iranian academic center for education culture and research
Lead Sponsor

Eligibility

Sex/Gender
All
Age
40 Years to 80 Years

Inclusion criteria

Inclusion criteria: Patients with osteoarthritis visit to Baqiyatallah Hospital in Tehran Male or female patients aged 40 to 80 years According to the criteria of the American College of Rheumatology Patients with Knees osteoarthritis grade 1 or 2

Exclusion criteria

Exclusion criteria: Patients with history of arthroscopy, surgery, or Injection to the target knee joint within the past 6 months History of knee replacement Any serious systemic disease (such as secondary infections and cardiovascular, liver, and kidney diseases) or any other chronic inflammatory disease Any history of alcohol and drug abuse Patients with fibromyalgia and other debilitating diseases affecting the knees Blood clotting disorders, and or use of anticoagulants such as warfarin and heparin Use of anti-platelet drugs such as aspirin, and thrombolytic drugs Pregnant women, women who are planning to have children, and women who are breastfeeding are not included in the plan.

Design outcomes

Primary

MeasureTime frame
Joint pain. Timepoint: Before intervention and end of intervention after 2 months. Method of measurement: The Visual Analogue Scale Questionnaire.;Joint stiffness. Timepoint: Before intervention and end of intervention after 2 months. Method of measurement: The Western Ontario and McMaster Universities Arthritis Index Questionnaire.;Physical activity. Timepoint: Before intervention and end of intervention after 2 months. Method of measurement: The Western Ontario and McMaster Universities Arthritis Index Questionnaire.

Secondary

MeasureTime frame
Dose of acetaminophen used. Timepoint: Before intervention and end of intervention after 2 months. Method of measurement: The Western Ontario and McMaster Universities Arthritis Index Questionnaire.;Blood urea nitrogen. Timepoint: Before intervention and end of intervention after 2 months. Method of measurement: The level of urea nitrogen in the blood is measured by an autoanalyzer in the laboratory.;Creatinine. Timepoint: Before intervention and end of intervention after 2 months. Method of measurement: The level of creatinine in the blood is measured by an autoanalyzer in the laboratory.;Aspartate aminotransferase. Timepoint: Before intervention and end of intervention after 2 months. Method of measurement: The level of aspartate aminotransferase in the blood is measured by an autoanalyzer in the laboratory.;Alanine aminotransferase. Timepoint: Before intervention and end of intervention after 2 months. Method of measurement: The level of alanine aminotransferase in the blood is measured by an autoanalyzer in the laboratory.;Blood cell count. Timepoint: Before intervention and end of intervention after 2 months. Method of measurement: Blood cell counts are measured in the laboratory using a cell counter.;Severity of arthritis. Timepoint: Before intervention and end of intervention after 2 months. Method of measurement: The Western Ontario and McMaster Universities Arthritis Index Questionnaire.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactFallah Huseini Hasan

Iranian academic center for education culture and research

h.fallah@acecr.ac.ir+98 26 3476 4010

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Jun 11, 2026