Efficacy and Safety of Oral Probiotics on Ocular Symptoms and Gut Microbiome of Children with Vernal Keratoconjunctivitis: a Double-blind Clinical Trial Study
试验速览
- 阶段
- 1 期
- 状态
- 尚未招募
- 发起方
- 入组人数
- 32
- 主要终点
- The severity of ocular symptoms
研究概览
简要总结
The primary goal of this study is to determine the effects of oral probiotics on the severity of ocular symptoms and the alterations of the gut microbiome of children (4-18 years old) with vernal keratoconjunctivitis. The current study will also assess the safety of oral probiotics among children with vernal keratoconjunctivitis. The main questions it aims to answer: 1- Does treatment with oral probiotics improve the severity of ocular symptoms in children with vernal keratoconjunctivitis? 2- Does treatment with oral probiotics alter the gut microbiome of children with vernal keratoconjunctivitis? Researchers will compare the ocular symptoms and gut microbiome between two groups receiving oral probiotics and placebo among children with vernal keratoconjunctivitis.
Participants The participants will receive the oral probiotics and placebo ever day for one month.
Record their regimen and keep a diary of their symptoms.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Double (Participant, Care Provider)
入排标准
- 年龄范围
- 4 Years 至 18 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •1- Patients whose diagnosis of vernal keratoconjunctivitis is confirmed based on clinical criteria. 2-Patients with an age range of 4 to 18 years. 3-Patients who have not received drug treatment for vernal keratoconjunctivitis disease recently.
排除标准
- •1-Having other eye diseases (except refractive error) 2-Change in the diagnosis of the disease during the study 3-Antibiotics, anti-inflammatory drugs, immunosuppressive drugs 4-History of known gastrointestinal diseases (such as IBD, Celiac,...) 5- History of digestive problems in the last two weeks 6- Lack of consent to participate in the study 7- Having an eye infection in the last one month 8- People who were athletes or involved in intense physical activity 9- Smoking, alcohol and drugs. 10- Using drugs that affect appetite, bowel movements, and nutrient absorption 11- Using prebiotics, probiotics or synbiotics in the last 3 months 12- People who have been on a diet to lose or gain weight in the last 3 months 13- People who have undergone gastrointestinal surgery. 14- Changing the patient's diagnosis in the course of treatment 15- Failure to follow up the patient at the specified times for the visit and assessment of the patient's bed 16- Taking fat-reducing drugs 17-Oral hypoglycemic drugs, insulin, antihypertensive drugs-18- Diuretics, laxatives, antacids 19-Food supplements in the last 3 months.
研究组 & 干预措施
Case group: treatment with oral probiotics
In the case group, the patients with vernal keratoconjunctivitis will receive oral probiotics within one month and outcomes will be assessed one month after probiotic therapy.
干预措施: Probiotic (Drug)
Placebo group: treatment with placebo.
In the placebo group, the patients with vernal keratoconjunctivitis will receive the placebo substance within one month and outcomes will be assessed one month after treatment.
干预措施: Placebo Drug (Drug)
结局指标
主要结局
The severity of ocular symptoms
时间窗: One month
Clinical symptoms (itching, photosensitivity, burning and tearing) and signs (conjunctival hyperemia, chemosis, secretions, Trantas dots and superficial punctate keratitis) are evaluated using slit lamp examination and fluorescent staining and are scored from 0 to 3 points. (0=absence, 1=mild, 2=moderate, 3=severe). At the beginning of the study and one month after the start of the study, the total score of symptoms (range: 0-24) and the score of symptoms (range: 0-30) are calculated as the sum of the scores of each symptom.
Alterations of gut microbiota
时间窗: One month
The evaluation of gut microbiota will be conducted at baseline and one month after treatment using real time PCR.
次要结局
- The recurrent rate of disease(Three month)
- The complications of treatment(Three month)
研究者
Mohsen Pourazizi
Assistant Professor of Ophthalmology
Isfahan University of Medical Sciences