Herbal granules aim to slow eye disease in major trial
NCT ID NCT07189169
First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time
Summary
This Phase 3 trial tests whether QA108 granules, a traditional Chinese medicine, can reduce drusen (fatty deposits) in the eyes of people with intermediate age-related macular degeneration. 400 participants will take the granules or a placebo for 24 weeks. The study aims to see if the treatment can slow disease progression and preserve vision.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- QA108 granules (herbal medicine)
- What this could lead to
- If successful, QA108 granules could offer a new treatment option to slow or reduce drusen buildup in intermediate age-related macular degeneration, potentially preserving vision.
- What could go wrong
- This is an early Phase 3 trial with 400 participants, so results may not confirm effectiveness. The herbal intervention may have limited impact or side effects, and the specific TCM diagnosis may limit generalizability.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 400 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2025
- Expected to finish
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Jun 2027
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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45 to 85 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. The study eye meets the Western medicine diagnostic criteria for intermediate age-related macular degeneration; 2. Presence of at least one large drusen (diameter ≥125 μm) in the macular area of the fundus; 3. Consistent with the TCM diagnosis of type of Yang-hyperactivity due to Yin-deficiency; 4. Age 45-85 years (inclusive), regardless of gender; 5. The study eye has a BCVA of 88-34 letters (using the ETDRS chart, inclusive of threshold values), equivalent to a Snellen visual acuity of 20/20 to 20/200 (inclusive); 6. Voluntary participation in this clinical trial, with informed consent provided and an informed consent form signed Exclusion Criteria: 1. The study eye is with concomitant eye disorders that may interfere with the observation of the trial as judged by the investigator, including pathological myopia, glaucoma, diabetic retinopathy, retinal vein occlusion, uveitis, retinal detachment, optic neuropathy (optic neuritis, atrophy, papilledema), and macular hole; 2. The study eye has an intraocular pressure (IOP) ≥ 25 mmHg; 3. Presence of geographic atrophy (GA) involving the foveal center in the study eye; 4. Previous ophthalmic surgery in the study eye: vitrectomy, macular translocation; 5. Aphakia (except pseudophakia) or posterior capsule rupture (except YAG laser posterior capsulotomy after IOL implantation at more than 1 month prior to screening) of the study eye; 6. Any intraocular surgery (excluding intravitreal injections) that may affect trial observations or imaging in the study eye within 3 months; 7. Cataract in the study eye that interferes with fundus examination or imaging; 8. Treatments received in the study eye within 3 months prior to screening, including macular laser photocoagulation and micropulse laser therapy; 9. The patient received relevant TCM treatment within 1 month prior to screening; 10. Active ocular infection in either eye that affects fundus examination or imaging; 11. The non-study eye has a BCVA of less than 19 ETDRS letters (not inclusive); 12. Known allergy to the therapeutic or diagnostic drug used in the study protocol, including the single drug components in the study drugs; 13. Poorly controlled hypertension (systolic blood pressure ≥ 160 mmHg or diastolic blood pressure ≥ 100 mmHg after regular use of antihypertensive drugs); 14. Platelet count ≤100×10⁹/L (unless follow-up results are normal), or any of the following exceeding 1.5 times the upper limit of normal (ULN): total bilirubin (TBIL), alanine aminotransferase (ALT), aspartate aminotransferase (AST), or serum creatinine (Cr); 15. Pregnant women, women who are breastfeeding, those who plan for pregnancy in the next six months, or those who are unwilling to take effective birth controls during the study course and until six months after drug withdrawal; 16. Any uncontrollable clinical disorder prior to the start of treatment, such as severe psychiatric, neurological, respiratory, immunological, hematological, and cardiac system diseases, and malignant tumors; 17. Subjects who have participated in other clinical trials within 3 months prior to this trial; 18. Patients who are unsuitable for participating at the discretion of the investigator.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Beijing Hospital
RECRUITINGBeijing, China
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Other studies related to the condition(s) this trial covers.