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Efficacy and Safety of Epigallocatechin-3-gallate (EGCG) as an Adjunct to Standard Iron Chelation Therapy in Patients with Thalassemia: A Randomized, Open-Label, Controlled Trial

Efficacy and Safety of Epigallocatechin-3-gallate (EGCG) as an Adjunct to Standard Iron Chelation Therapy in Patients with Thalassemia: A Randomized, Open-Label, Controlled Trial

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
TCTR
Registry ID
TCTR20260711008
Enrollment
24
Registered
2026-07-11
Start date
2026-07-06
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

Beta-thalassemia with iron overload, including transfusion-dependent thalassemia (TDT) and non-transfusion-dependent thalassemia (NTDT). Beta-thalassemia iron overload EGCG ferritin

Interventions

The investigational product in this study is NOW Green Tea Extract 400 mg per capsule. Each capsule contains epigallocatechin gallate or EGCG 200 mg with Thai-FDA approved. Participants randomized to
Experimental Dietary Supplement,No Intervention No treatment
Epigallocatechin 3 gallate (EGCG),Standard Iron chelation

Sponsors

Department of Medicine, Phramongkutklao Hospital Foundation
Lead Sponsor
The Thai Society of Hematology
Collaborator

Eligibility

Sex/Gender
All
Age
20 Years to 99 Years

Inclusion criteria

Inclusion criteria: 1. Male or female participants aged more than 20 years. 2. Confirmed diagnosis of beta-thalassemia, either transfusion-dependent thalassemia (TDT) or non-transfusion-dependent thalassemia (NTDT). 3. Receiving stable iron chelation therapy with deferasirox or deferiprone for at least 12 weeks before screening. 4. Serum ferritin level at screening between 300 and 3,000 ng/mL. 5. Alanine aminotransferase (ALT) level less than 3 times the upper limit of normal (ULN). 6. Able and willing to provide written informed consent.

Exclusion criteria

Exclusion criteria: 1. Hemoglobin level less than 5 g per dL at screening. 2. Change in the type or dose of iron chelation therapy within 12 weeks before screening, or anticipated change within the first 6 months of the study. 3. Use of luspatercept or mitapivat within 6 months before screening. 4. History of allergy or hypersensitivity to EGCG or green tea products. 5. Pregnant, planning to become pregnant, or breastfeeding. 6. Clinically severe or unstable cardiac, renal, or endocrine disease. 7. Evidence of active viral hepatitis infection, defined as positive HBsAg or positive HCV RNA, or chronic liver disease from causes other than iron overload. 8. Participation in another interventional clinical trial within 30 days before screening. 9. Regular daily consumption of green tea or EGCG containing supplements within 3 months before screening. 10. Any medical condition that, in the judgment of the investigator, may pose a risk to the participant or interfere with the conduct of the study.

Design outcomes

Primary

MeasureTime frame
serum ferritin at visit week 12 Ferritin

Secondary

MeasureTime frame
serum ferritin at visit week 24 ferritin,Safety outcome every visit (visit week 0,4,12,24) serum CBC Bun Cr LFT electrolytes and other side effects,safety outcome every visit (visit week 0,4,12,24) side effects of intervention

Countries

Thailand

Contacts

Public ContactSarisa Tongkaew

Phramongkutklao Hospital

tamtkaew@gmail.com0804504999

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026