Tea clinical trials
How each study uses Tea is sorted by a rule, right about nine times in ten. Readers can ask us to read every study one by one.Ask us to read each study
Get an email when these change. Save the Tea studies recruiting or about to start — once a week, free: studies that open, close, add sites or post results.
See an example email
Example · made-up studies
Breast cancer · Recruiting: 2 came in, 3 changed
What changed in your saved searches, Oct 31 – Nov 6:
A study of drug A after surgery for early breast cancer
Came in · now Recruiting
Drug B with hormone therapy in advanced breast cancer
Changed
· Sites: 4 added, including Seoul and Busan
· Enrollment: 300 → 450 participants
Exercise during chemotherapy
Now Active, not recruiting
One email a week for all your saved searches. Stop any time.
Approvals
The first approval found in each region, with its record
- United States
- Not in FDA's approval records
- European Union
- Not in EMA's list of EU-wide authorisations
From FDA's Drugs@FDA and Purple Book (through openFDA) and the European Medicines Agency, files of Sept 2026 and 27 Oct 2026. National approvals in Europe and other countries are not included. How this is worked out
How studies write it
Studies that test it under each name
Studies by the year they started
47 studies that test it; most in 2021 (6)
| Year | Studies |
|---|---|
| 1998 | 1 |
| 2000 | 1 |
| 2003 | 3 |
| 2004 | 1 |
| 2005 | 1 |
| 2006 | 2 |
| 2007 | 2 |
| 2008 | 1 |
| 2009 | 2 |
| 2010 | 4 |
| 2011 | 1 |
| 2012 | 2 |
| 2013 | 1 |
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 2 |
| 2019 | 3 |
| 2021 | 6 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 4 |
| 2026 | 2 |
By phase
A phase 1/2 study counts in both.
What it is tested for
Each study’s main condition, where its own words name it, so a study counts once.
Who runs them
Industry 2 · Other 45
University of Shizuoka (2) · University of Copenhagen (2) · University of Reading (2) · Hayder Raad Abdulbaqi (1) · First Affiliated Hospital of Harbin Medical University (1) · Herlev Hospital (1) · Laouani Aicha (1) · University of Bath (1)
Often tested with
Tested in the same studies.
Lycopene (1) · Fermented papaya preparation (1) · Polyphenon E (1) · Vitamin E (1) · Epigallocatechin gallate (1) · Gallocatechol (1) · Tyrosine (1) · Caffeine (1)
Coming up
From the study records. Dates are the sponsors’ own estimates and often move.
Reaching primary completion within a year · 2
Studies that test Tea.
- Dec 2026Influence of Tea Extract on Maximal Voluntary Knee Contraction Following Downhill JoggingNot applicable · University of Fribourg
- Feb 2027Effects of Green Tea on Cardiometabolic OutcomesNot applicable · University of Central Lancashire
Studies
Open first, then newest update. How each study uses Tea is read from its arms, and is right about nine times in ten. Ask us to read each study. These are the studies that list it as an intervention; a search of ClinicalTrials.gov also finds studies that mention it only in a description, such as earlier treatment.
Testing it · 47
- FATIMA Trial: EGCG and Vitamin D3 for Prevention of Fibroid RecurrenceRecruitingPhase 2Sheikh Shakhbout Medical CityNCT07647198Written as Vitamin D and Green Tea
- Influence of Tea Extract on Maximal Voluntary Knee Contraction Following Downhill JoggingRecruitingNot applicableUniversity of FribourgNCT07113405Written as Protein and tea extract
- Green Tea and Quercetin in Combination With Docetaxel Chemotherapy in Castration-resistant Prostate Cancer PatientsRecruitingPhase 1/2Charles Drew University of Medicine and ScienceNCT06615752Written as green tea and quercetin + docetaxel
- The Impact of 12 Week Retention of Nutrients on Skin and the Perception of Physical Health StatusRecruitingNot applicableChinaNormNCT07383974Written as Vitamin C & Green Tea Capsules + Multivitamin & Mineral Capsules Combination
- Effects of Green Tea on Cardiometabolic OutcomesNot yet recruitingNot applicableUniversity of Central LancashireNCT06795438Written as Green tea
- Investigating the Effects of Green Tea on Blood ViscosityNot yet recruitingNot applicableUniversity of ReadingNCT06740448Written as Green Tea
- Effect of Green Tea Supplementation in Older Adult WomenRecruitingNot applicableUniversity of ValladolidNCT06289439Written as Green tea (Camellia sinensis) 1000 mg as extract
- Thoracic Epidural Anesthesia Reduces Mortality and Rehospitalization for Patients With Heart Failure With Reduced Ejection FractionCompletedNot applicableFirst Affiliated Hospital of Harbin Medical UniversityNCT06068166Written as TEA plus GDMT
- Evaluation of Antioxidant and Anti-inflammatory Effect of Matcha Tea Intake on Periodontal HealthActive, not recruitingNot applicableHayder Raad AbdulbaqiNCT05681325Written as green tea
- Hot or Cold Beverages in Warm WeatherCompletedNot applicableHerlev HospitalNCT05900960Written as Tea
- Safety and Efficacy of Medicinal Plant Extract in Overweight and Obese Participants.CompletedNot applicableLaouani AichaNCT05824039Written as Tea infusion
- Tea Extract, Blood Lipid and Dietary FatCompletedNot applicableUniversity of BathNCT03324191Written as Tea extract (medium concentration)
- Therapeutic Effect of Herbal Infusion on MenometrorrhagiaCompletedNot applicableFaculty of Medicine, SousseNCT05406960Written as Tea infusion
- Camelia Sinensis for Basal Metabolism and Body CompositionStatus unknownNot applicableAzienda di Servizi alla Persona di PaviaNCT05031702Written as Camellia Sinensis leaf extract
- Effect of Coffee and Tea Consumption on Adolescent Weight ControlStatus unknownNot applicableTel-Aviv Sourasky Medical CenterNCT05181176Written as Green tea
- Effect of Polyphenols on Absorption of Iron From Sodium Iron ChlorophyllinCompletedNot applicableSwiss Federal Institute of TechnologyNCT04849832Written as SIC + tea
- Can the Reduction of Iron Availability Caused by Tea Consumption Change the Gut Microbiota Composition and Disrupt Host Body-iron StatusStatus unknownNot applicableUniversity of ReadingNCT05019573Written as Black tea
- Using Tea-based Mouthwash Relieve Stomatitis and Oral UlcersStatus unknownPhase 2Chang Gung Memorial HospitalNCT05010928Written as mouthwash with tea
- Topical and Oral Regimen for Skin HealthCompletedNot applicableIntegrative Skin Science and ResearchNCT04872946Written as Tea
- Green Tea, Black Tea, or Water in Treating Patients With Prostate Cancer Undergoing SurgeryCompletedNot applicableJonsson Comprehensive Cancer CenterNCT00685516Written as green tea
See all 47 studies that test Tea →
Given beside what is tested · 1 — Tea is usual care or a partner of the new treatment
As the comparator · 3 — what is tested is compared with Tea
- Quality of Life Outcomes for Ulipristal Acetate and Tranexamic Acid in the Management of Heavy Menstrual BleedingWithdrawnPhase 1University of SaskatchewanNCT03027973Written as TEA
- Green Tea Attenuates Pressure Reduction Induced by a Session of Physical ExerciseCompletedNot applicableFederal University of ParaíbaNCT02578927Written as Green Tea
- Cardioprotective Effects of Green Tea Versus Maté IntakeStatus unknownPhase 3Instituto de Cardiologia do Rio Grande do SulNCT00933647Written as Green tea
Codes
What other systems call Tea · ClinicalTrials.gg INT008278
Also registered as green tea leaf (UNII W2ZU1RY8B0 · RxNorm 283567) and tea leaf (UNII GH42T47V24 · RxNorm 968498).
“Confirmed” means two independent publishers link the code to this drug; “one source”, one does and its name agrees.