MyopiaNCT06570226
Discussion on the Effectiveness of Tea on Blood Pressure, Body Composition and Vision Problems in College Students
A study testing hibiscus tea in people with Myopia and Visual Fatigue, run by Hungkuang University at 1 site in Taiwan.
Trial summary
Background: Tea is a universal beverage and one of the most popular drinks around the world. Some cell and animal experiments have pointed out that drinking tea may be related to hypotension, body composition and vision problems, and there are more and more related advertisements, especially for hibiscus tea, which is… Read more about this study
- Who is it for?
- Ages 15 to 22 yearsHealthy volunteers can take part
- Conditions the study is for
- Myopia, Visual Fatigue, Blood Pressure
- What is being tested?
- hibiscus tea
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 100 participants
- Where
- 1 siteTaiwan
- Study dates
- 26 Jul 2024to 25 Jul 2025
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 15 to 22 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Who may be able to join
- The inclusion criteria are college students aged 15 to 22 years old. -
Who cannot join
- hemodialysis patients who need to limit their water intake
- those with a history of gastric ulcers
- those allergic to anthocyanins
- those who have long-term consumption or consumption of beverages, foods or health products containing high anthocyanins that may interfere with the study after evaluation, for example: foods or health foods such as cranberries, blueberries, cherries and grapes.
Trial locations and contacts
1 site in 1 country.
Taiwan1 site, 1 recruiting
- Recruiting
University of Kang Ning
Taipei, 114
Ciao-Lin Ho, PhD
About this study
Background:
Tea is a universal beverage and one of the most popular drinks around the world. Some cell and animal experiments have pointed out that drinking tea may be related to hypotension, body composition and vision problems, and there are more and more related advertisements, especially for hibiscus tea, which is rich in anthocyanins. However, there is a lack of literature on the effectiveness of hibiscus tea drinks in preventing and treating blood pressure, body composition and vision problems in college students.
Read more
Purposes:
This study used a randomized human trial to evaluate the effects of drinking hibiscus tea on the control and reduction of blood pressure, body composition, and near vision problems. 100 subjects were divided into 2 groups: the hibiscus tea group and the boiled water drinking group, and they continued to drink it for 10 weeks. At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, the visual fatigue scale, blood pressure, and body composition were examined respectively. At the initial stage (0th week) and at the 10th week after stopping drinking, visual acuity examinations were performed.
Expected results:
- To explore the effect of hibiscus tea drinks on subjects' myopia.
- To explore the effect of hibiscus tea drinks on visual fatigue of subjects.
- To explore the effect of hibiscus tea drinks on the blood pressure of subjects.
- To explore the impact of hibiscus tea drinks on the body composition of subjects.
- To explore the effect of hibiscus tea drinks on body fat of subjects.
- Conditions
- Myopia, Visual Fatigue, Blood Pressure, Body Composition, Body Fat
- Being tested
- hibiscus tea
- Keywords
- Roselle tea, myopia, college students, body composition, anthocyanin
- Medical subject headings
- Myopia, Asthenopia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
hibiscus teaDietary supplement
Some cell and animal experiments have pointed out that drinking tea may be related to hypotension, body composition and vision problems, and there are more and more related advertisements, especially for hibiscus tea, which is rich in anthocyanins.
| Study group | Role | What they receive |
|---|---|---|
| the hibiscus tea group | Experimental | To drink the hibiscus tea for 10 weeks. At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, the visual fatigue scale, blood pressure, and body composition were examined respectively. At the initial stage (0th week) and at the 10th week after stopping drinking, visual acuity examinations were performed. Receives: Dietary Supplement: hibiscus tea |
| the boiled water drinking group | No intervention | To drink the boiled water for 10 weeks. At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, the visual fatigue scale, blood pressure, and body composition were examined respectively. At the initial stage (0th week) and at the 10th week after stopping drinking, visual acuity examinations were performed. |
What is being measured
The primary outcome is the main question the study is designed to answer.
To explore the effect of hibiscus tea drinks on subjects' myopia.
At the beginning of the trial (week zero), and the tenth week after stopping drinking, Myopia (spherical equivalent refractive error, unit: diopter) was examined.
Measured: At the beginning of the trial (week zero) and the tenth week
To explore the effect of hibiscus tea drinks on visual fatigue of subjects.
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, the visual fatigue scale was examined by Visual Fatigue Questionnaire (Heuer et al,1989).
Heuer, H., Hollendiek, G., Kröger, H., \& Römer, T. (1989). Rest position of the eyes and its effect on viewing distance and visual fatigue in computer display work. Zeitschrift fur experimentelle und angewandte Psychologie, 36(4), 538-566.
Measured: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
To explore the effect of hibiscus tea drinks on the blood pressure of subjects.
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, blood pressure (mmHg) was examined.
Measured: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
To explore the impact of hibiscus tea drinks on weight.
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, weight (kg) was examined.
Measured: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
To explore the impact of hibiscus tea drinks on muscle mass for body composition.
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, muscle mass (kg) was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). Tanita Home Page. Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
Measured: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
To explore the impact of hibiscus tea drinks on muscle quality for body composition.
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, muscle quality (MQ) was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). MQ = muscle strength (kg)/muscle mass (kg). Tanita Home Page. Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
Measured: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
To explore the impact of hibiscus tea drinks on physique ratings for body composition.
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, physique ratings was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). Physique ratings were determined as follows: 1-Hidden Excess Fat, 2-Medium Frame \& Excess Fat, 3-Solidly Built, 4-Low Muscle, 5-Standard, 6-Muscular, 7-Low Muscle \& Low Fat, 8-Thin \& Muscular (Athlete), and 9-Very Muscular (Athlete). Tanita Home Page. Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
Measured: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
To explore the impact of hibiscus tea drinks on Visceral Fat for body composition.
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, Visceral Fat was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). Based on all the available information it gives you a range between 1 and 59. A rating between 1 and 12 indicates that you have a healthy level of visceral fat. A rating between 13 and 59 indicates that you have an excessive level of visceral fat.Tanita Home Page. Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
Measured: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
To explore the impact of hibiscus tea drinks on BMR (Basal Metabolic Rate) for body composition.
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, BMR (kcal) was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). Tanita Home Page, Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
Measured: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
To explore the impact of hibiscus tea drinks on total body water (%) for body composition.
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, total body water (%) was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). The ideal percentage for adult women will fluctuate between 45 and 60%, while the ideal percentage for adult men will be between 50 and 65% of the total body. Tanita Home Page, Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
Measured: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
To explore the impact of hibiscus tea drinks on BONE MASS for body composition.
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, BONE MASS (kg) was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). Tanita Home Page, Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
Measured: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
To explore the impact of hibiscus tea drinks on BMI for body composition.
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, BMI (kg/m^2) was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). Tanita Home Page, Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
Measured: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
To explore the impact of hibiscus tea drinks on Metabolic age for body composition.
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, Metabolic age was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). Tanita Home Page, Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
Measured: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
To explore the effect of hibiscus tea drinks on body fat percentage of subjects for body composition.
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, body fat percentage (%) was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). .
Measured: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 Aug 2024
- Study start26 Jul 2024
- Primary completion25 Jul 2025 (estimated)
- Study completion25 Jul 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for MyopiaStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 100 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Hungkuang University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Ciao-Lin Ho, Hungkuang University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06570226
- Sponsor's protocol ID
- CLHo
- Status last verified
- Aug 2024
- First submitted
- 14 Aug 2024
- Last updated
- 26 Aug 2024
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 26 Aug 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Discussion on the Effectiveness of Tea on Blood Pressure, Body Composition and Vision Problems in College Students
- ClinicalTrials.gov ID
- NCT06570226
- Acronym / sponsor ID
- CLHo
- Conditions
- Myopia, Visual Fatigue, Blood Pressure, Body Composition, Body Fat
- Keywords
- Roselle tea, myopia, college students, body composition, anthocyanin
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 100 participants (estimated)
- Lead sponsor
- Hungkuang UniversityUniversity, hospital or other
- Study start
- 26 Jul 2024 (actual)
- Primary completion
- 25 Jul 2025 (estimated)
- Study completion
- 25 Jul 2025 (estimated)
- First posted
- 26 Aug 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Background:
Tea is a universal beverage and one of the most popular drinks around the world. Some cell and animal experiments have pointed out that drinking tea may be related to hypotension, body composition and vision problems, and there are more and more related advertisements, especially for hibiscus tea, which is rich in anthocyanins. However, there is a lack of literature on the effectiveness of hibiscus tea drinks in preventing and treating blood pressure, body composition and vision problems in college students.
Purposes:
This study used a randomized human trial to evaluate the effects of drinking hibiscus tea on the control and reduction of blood pressure, body composition, and near vision problems. 100 subjects were divided into 2 groups: the hibiscus tea group and the boiled water drinking group, and they continued to drink it for 10 weeks. At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, the visual fatigue scale, blood pressure, and body composition were examined respectively. At the initial stage (0th week) and at the 10th week after stopping drinking, visual acuity examinations were performed.
Expected results:
- To explore the effect of hibiscus tea drinks on subjects' myopia.
- To explore the effect of hibiscus tea drinks on visual fatigue of subjects.
- To explore the effect of hibiscus tea drinks on the blood pressure of subjects.
- To explore the impact of hibiscus tea drinks on the body composition of subjects.
- To explore the effect of hibiscus tea drinks on body fat of subjects.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| the hibiscus tea group | Experimental | Dietary Supplement: hibiscus teaTo drink the hibiscus tea for 10 weeks. At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, the visual fatigue scale, blood pressure, and body composition were examined respectively. At the initial stage (0th week) and at the 10th week after stopping drinking, visual acuity examinations were performed. |
| the boiled water drinking group | No intervention | –To drink the boiled water for 10 weeks. At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, the visual fatigue scale, blood pressure, and body composition were examined respectively. At the initial stage (0th week) and at the 10th week after stopping drinking, visual acuity examinations were performed. |
Who may qualify
- Ages
- 15 to 22 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
Key inclusion criteria (1 listed)
- The inclusion criteria are college students aged 15 to 22 years old. -
Key exclusion criteria (4 listed)
- hemodialysis patients who need to limit their water intake
- those with a history of gastric ulcers
- those allergic to anthocyanins
- those who have long-term consumption or consumption of beverages, foods or health products containing high anthocyanins that may interfere with the study after evaluation, for example: foods or health foods such as cranberries, blueberries, cherries and grapes.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| hibiscus teaSome cell and animal experiments have pointed out that drinking tea may be related to hypotension, body composition and vision problems, and there are more and more related advertisements, especially for hibiscus tea, which is rich in anthocyanins. | Dietary supplement | the hibiscus tea group |
Primary outcome
To explore the effect of hibiscus tea drinks on subjects' myopia.
Time frame: At the beginning of the trial (week zero) and the tenth week
At the beginning of the trial (week zero), and the tenth week after stopping drinking, Myopia (spherical equivalent refractive error, unit: diopter) was examined.
To explore the effect of hibiscus tea drinks on visual fatigue of subjects.
Time frame: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, the visual fatigue scale was examined by Visual Fatigue Questionnaire (Heuer et al,1989). Heuer, H., Hollendiek, G., Kröger, H., \& Römer, T. (1989). Rest position of the eyes and its effect on viewing distance and visual fatigue in computer display work. Zeitschrift fur experimentelle und angewandte Psychologie, 36(4), 538-566.
To explore the effect of hibiscus tea drinks on the blood pressure of subjects.
Time frame: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, blood pressure (mmHg) was examined.
To explore the impact of hibiscus tea drinks on weight.
Time frame: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, weight (kg) was examined.
To explore the impact of hibiscus tea drinks on muscle mass for body composition.
Time frame: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, muscle mass (kg) was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). Tanita Home Page. Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
To explore the impact of hibiscus tea drinks on muscle quality for body composition.
Time frame: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, muscle quality (MQ) was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). MQ = muscle strength (kg)/muscle mass (kg). Tanita Home Page. Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
To explore the impact of hibiscus tea drinks on physique ratings for body composition.
Time frame: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, physique ratings was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). Physique ratings were determined as follows: 1-Hidden Excess Fat, 2-Medium Frame \& Excess Fat, 3-Solidly Built, 4-Low Muscle, 5-Standard, 6-Muscular, 7-Low Muscle \& Low Fat, 8-Thin \& Muscular (Athlete), and 9-Very Muscular (Athlete). Tanita Home Page. Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
To explore the impact of hibiscus tea drinks on Visceral Fat for body composition.
Time frame: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, Visceral Fat was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). Based on all the available information it gives you a range between 1 and 59. A rating between 1 and 12 indicates that you have a healthy level of visceral fat. A rating between 13 and 59 indicates that you have an excessive level of visceral fat.Tanita Home Page. Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
To explore the impact of hibiscus tea drinks on BMR (Basal Metabolic Rate) for body composition.
Time frame: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, BMR (kcal) was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). Tanita Home Page, Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
To explore the impact of hibiscus tea drinks on total body water (%) for body composition.
Time frame: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, total body water (%) was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). The ideal percentage for adult women will fluctuate between 45 and 60%, while the ideal percentage for adult men will be between 50 and 65% of the total body. Tanita Home Page, Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
To explore the impact of hibiscus tea drinks on BONE MASS for body composition.
Time frame: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, BONE MASS (kg) was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). Tanita Home Page, Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
To explore the impact of hibiscus tea drinks on BMI for body composition.
Time frame: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, BMI (kg/m^2) was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). Tanita Home Page, Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
To explore the impact of hibiscus tea drinks on Metabolic age for body composition.
Time frame: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, Metabolic age was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). Tanita Home Page, Available online: https://tanita.eu/understanding-your-measurements (accessed on 13 August 2022).
To explore the effect of hibiscus tea drinks on body fat percentage of subjects for body composition.
Time frame: At the beginning of the trial (week zero), the second week, the sixth week and the tenth week
At the beginning of the trial (week zero), the second week, the sixth week, and the tenth week after stopping drinking, body fat percentage (%) was examined by the TANITA RD-545 (Tanita Corporation, Tokyo-Japonya). .
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 26 Aug 2024.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing hibiscus tea in people with Myopia and Visual Fatigue, run by Hungkuang University at 1 site in Taiwan.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 26 Aug 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Ciao-Lin Ho, PhD (+886-4-26318652 ext. 5201, 5259, swl8310@hk.edu.tw), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
To explore the effect of hibiscus tea drinks on subjects' myopia. (time frame: At the beginning of the trial (week zero) and the tenth week). The study lists 14 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Aug 2024.