- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01886560
Low Dose Doxycycline in the Treatment of Corneal Burn
Prospective, Double-blind, Randomized, Controlled Clinical Trial of Low Dose Doxycycline in the Treatment of Corneal Burn
Study Overview
Detailed Description
Severe Ocular Burn often leads to the Ocular surface failure, corneal vascularization dissolved hole or corneal opacity.Because the conventional treatment effect is not ideal, blindness rate is extremely high, has been a very challenging catastrophic ophthalmic emergency.Early effective inhibition of inflammation, promote healing of corneal epithelium is the key of reducing corneal perforation, corneal neovascularization, improving corneal transparency.Existing anti-inflammatory treatment including the hormone and immune inhibitors, auto-serum, non-steroidal anti-inflammatory drugs, amniotic membrane transplantation or amniotic membrane patch, etc.Although these measures have some effect, they have their disadvantages.Select both broad-spectrum anti-inflammatory effects and moderate price, good safety anti-inflammatory drugs is particularly important.
Sub-antimicrobial dose doxycycline posses known anti-inflammatory effects that are separate from their antibacterial mode of action.This mode of action has lead to the routine use of sub-antimicrobial dose doxycycline for treating inflammatory or autoimmune diseases, such as rosacea, periodontitis and multiple sclerosis.We confirmed on the basis of predecessors' studies that low dose oral doxycycline and topical application of doxycycline can accelerate corneal epithelium healing after ocular surface burn, effectively inhibit inflammation mediated corneal new angiogenesis.Its mechanism of action is about downregulate MMP2 and nitric oxide synthase.
Given the previous research obtained the encouraging result, we plan to carry out a clinical research, to explore oral low-dose doxycycline efficacy and safety of the treatment of corneal burns.
Study Type
Enrollment (Anticipated)
Phase
- Phase 2
- Phase 3
Contacts and Locations
Study Contact
- Name: Jingwen Huang
- Phone Number: 0086-20-87331541
- Email: shoouzhang35@sina.com
Study Locations
-
-
Guangdong
-
Guangzhou, Guangdong, China, 510060
- Zhongshan Ophthalmic Center
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
1.age from 18-70 years old, not limited to sex
2. ocular burn (including chemical injury, thermal burns)
3. studies of eye with Dua grade (2001) III, within 14 days after burns
4. about the eye burns
- become the research with only one eye
- conform to the standards of subjects for the eyes
Choose poor eyesight as in the study
If the vision is the same on both sides, the choice classification is higher as the research of eye
If the binocular vision and graded at the same time, according to a study in can be determined in consultation with the patient's eye
5.signed informed consent form
Exclusion Criteria:
- 1. Only one eye function
2.The exclusion criteria of the eye
A) corneal thinning depth ≥ 1/2CT, corneal perforation or perforation tendency
B, Dua classification I、II、IV、V、VI
C) after injury had received eye operation (such as amniotic membrane transplantation or covering)
D) Poor control of intraocular pressure after anti-glaucoma drug treatment (IOP ≥ 25mmHg)
E) past other corneal diseases
F) past ocular history of radiation therapy or eye operation history
G) eyelid defect, incomplete eyelid closure, entropion, trichiasis
3. Any side formulated after secondary infection
4. Other rule out criteria
A) Tetracycline class history of drug allergy
B) poor control of blood pressure (defined as after treatment with antihypertensive drugs, blood pressure is 150/95mmHg or higher)
C) serious heart, hepatic, renal insufficiency (or myocardial infarction, arrhythmia, myocardial ischemia and cardiac insufficiency, ALT, AST, upper limit of normal or higher by 2.5 times, creatinine upper limit of normal or higher by 1.5 times)
D) during pregnancy or lactation women (defined as pregnancy urine pregnancy test results in this test)
E) child-bearing age subjects (male and female) is suitable precautions during the entire study
F) into the group participated in other clinical subjects before 3 months
G) people with TB
H) nerve with mental illness
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Placebo Comparator: Placebo
Adding eatable flour into the pills
|
Tablets placebo one PO per day for 12 weeks
Other Names:
|
Experimental: Doxycycline treatment
Doxycycline treatment 50mg bid x 14 days then 50mg qd x 10 weeks
|
Tablets Doxycycline 50mg bid for 2 weeks,50mg qd for 10 weeks.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Time for Corneal epithelialization after treatment
Time Frame: 24 weeks
|
24 weeks
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
corneal limbal ischemia
Time Frame: 12 weeks
|
12 weeks
|
Safety and tolerability as assessed by adverse events, vital signs
Time Frame: 24 weeks
|
24 weeks
|
corneal neovascularization
Time Frame: 12 weeks
|
12 weeks
|
Corneal transparency
Time Frame: 12 weeks
|
12 weeks
|
cornea ulcer with perforation
Time Frame: 12 weeks
|
12 weeks
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- SunYat-senU2
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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