The Efficacy of Minocycline in the Treatment of Angelman Syndrome
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 25
- 试验地点
- 1
- 主要终点
- Bayley Scales of Infant and Toddler Development, 2nd Edition (BSID-II) Score at Baseline, 8 Weeks After Treatment, and at 16 Week Follow-up
研究概览
简要总结
There is mounting evidence to suggest that a treatment for Angelman syndrome is not just possible, but probable. The lack of known molecular targets associated with AS has hampered the development of specific therapeutics. However, a recent surge of potential therapeutics for other disorders associated with cognitive disruption has begun to be used in human clinical trials. The molecular modes of action for many of these new therapeutic agents have correlates to counter the molecular defects observed in AS. One such agent is minocycline (MC), a drug traditionally used as an antibiotic. This compound administered to a mouse model of AS showed a significant decrease in motor deficit and an increase in long term potentiation. The investigators believe a similar result will be observed when minocycline is administered to the AS patient and may lead to the development of an effective AS therapeutic.
详细描述
This prospective single arm cohort study is to be conducted at the University of South Florida. The study will examine the effect minocycline (MC) has on the traits of Angelman Syndrome.
Minocycline HCl is an FDA approved antimicrobial medication in the tetracycline family of drugs. Of all the tetracyclines, MC is the most lipid soluble and most active. Unlike other antibiotics in this family, MC possesses the unique characteristic of being able to cross the blood brain barrier. The study dosage has been used in other trial treatments of other neurologic disorders with positive outcomes. Studies of long-term administration of MC at the study dose have been shown to be safe and well tolerated. This dosage has already been approved by the FDA for use in the treatment of bacterial infections of multiple organ systems, and acne vulgaris.
It is important to note that minocycline is not approved to treat Angelman syndrome or to be used in children younger than 8 years old. The study protocol has been reviewed by several physicians and scientists and been deemed safe to proceed. As with any medication the potential for side effects exist. The side effects range from serious to mild and include allergic reactions to upset stomach. In order to minimize this risk, the medical staff will perform a thorough medical history and physical examination before the prescription is issued to ensure no allergy to this medication, penicillin or another tetracycline exists. Discoloration of the teeth is potential adverse effect that exists when taking high doses of MC over long periods of time. The tooth discoloration is permanent and the parent or guardian of the participants will be made aware of this potential side effect prior to enrollment in the study. In other studies using MC, the most common complaint was gastrointestinal upset.
Recruitment & Prescreening - We anticipate some of the study participants will live far from the study site. In order to reduce screen failures (travel to the site only to find out your child doesn't meet the study criteria) the following process is required. To give parents the opportunity to consider the study and have time to consult with their doctor(s), we will begin recruitment approximately one week after the study has been published on this website. Parents will be asked to submit their information electronically by clicking the link at the bottom of this webpage or by accessing weeberlab.com/clinical_trials.html. In the event they do not have internet access, they may call the study coordinator for assistance. Once you have indicated your interest in participation, a packet of information will be sent to you via email (or postal service if you prefer). The packet will include an informed consent document, a release of medical information and a form for your primary care doctor to complete and return directly to us. All of this information will be reviewed by the medical staff to determine your child's eligibility. Out of the first 50 eligible participants, 24 will be randomly selected by the Clinical and Investigational Science Institute (CTSI) at USF.
Study Procedure - Those selected will be required to travel to the study site a total of 3 times for 2 days each at their own expense (some assistance may be available through the Foundation for Angelman Syndrome Therapeutics, visit www.cureangelman.org). It is important that you seriously consider your ability to complete the study. The number of participants we are allowed to enroll is strictly governed and funding is limited. It is imperative data is collected from each of the 24 participants to ensure the best possible results. We do not know if your child will benefit from receiving this medication, which is why we are doing this study.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 4 Years 至 12 Years(Child)
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •The participant is between the ages of 4 to 12 years old.
- •The participant has been previously diagnosed with AS by clinical evaluation.
- •The participant's diagnosis has molecular confirmation (e.g. karyotyping, fluorescent in situ hybridization (FISH), DNA methylation test or sequencing of the ubiquitin-protein ligase E3A gene) of the diagnosis.
- •The participant has a CGI-Severity Score of at least 4 indicating a moderate level of behavioral difficulty.
- •The participant is male or female.
- •The participant has an acceptable surrogate capable of giving consent on the participant's behalf.
排除标准
- •The participant was diagnosed with AS with no identifiable molecular abnormality.
- •The participant has a known allergy to MC or tetracycline.
- •The participant is currently enrolled in a study in which a drug, vitamin or dietary manipulation is used in the treatment of AS.
- •The participant suffers from severe or uncontrolled seizures or any other medical condition rendering the patient unstable.
- •The participant suffers from cardiovascular, respiratory, liver, kidney or hematologic disease.
- •The participant suffers from liver disease or elevated liver function tests.
- •The participant has a history of neutropenia, anemia or thrombocytopenia.
- •The participant has a history of systemic lupus erythematosus or an anti-nuclear antibody (ANA) titer or >1:
- •The participant is pregnant or at risk of becoming pregnant (sexually active females).
- •The participant experiences persistent psychotic symptoms.
- •The participant (or a parent/caregiver) is not willing to participate in clinic visits.
- •The participant experiences severe symptoms judged to likely to endanger the participant's safety or the safety of others.
研究组 & 干预措施
Children with Angelman Syndrome
Children with a molecularly confirmed diagnosis of Angelman Syndrome meeting the protocol requirements will be selected randomly. All participants will receive the study drug, minocycline, over an identical time course. Participants will undergo identical baseline, 8 and 16 week follow up assessments.
干预措施: minocycline (Drug)
结局指标
主要结局
Bayley Scales of Infant and Toddler Development, 2nd Edition (BSID-II) Score at Baseline, 8 Weeks After Treatment, and at 16 Week Follow-up
时间窗: Baseline, 8 weeks & 16 weeks
The primary outcome measure consists of improvement in raw and standard scores on the Bayley Scales of Infant and Toddler Development when post Minocycline administration results are compared to baseline results. This is an individually administered test used to asses developmental functioning. The Bayley scales are typically used for ages 1-42 months, and can be utilized to identify developmental delay by evaluating five major areas of development: cognitive, communication, physical, social/emotional, and adaptive. The score ranges for each subscale are as follows: Cognitive, 0-91; Communication, 0-75; Receptive Language, 0-49; Expressive Language, 0-48; Gross Motor, 0-72; Fine Motor, 0-66; Self-Care, 0-72; and Self-Direction, 0-75. Fine and Gross Motor scores were summed for the Motor domain; Receptive and Expressive Language were combined for the Language domain. Increase in raw score indicates improvement in the specific subdomain for each of the listed scales.
次要结局
- Vineland Adaptive Behavior Scale, 4th Edition (Vineland-II)Score at Baseline, 8 Weeks After Treatment, and at 16 Week Follow-up(Baseline, 8 and 16 weeks)
- Clinical Global Impressions Severity Scale Score at Baseline, 8 Weeks After Treatment, and at 16 Week Follow-up(Baseline, 8 & 16 weeks)
- Normalization of the EEG (Electroencephalogram) Signature(Baseline, 8 and 16 weeks)
- Preschool Language Scale, Fourth Edition (PLS-4)Score at Baseline, 8 Weeks After Treatment, and at 16 Week Follow-up(Baseline, 8 and 16 weeks)
