ISRCTN12472821已完成2 期
A double-blind, placebo-controlled study of the effect of a TNFa a inhibitor, etanercept (Enbrel), on microglial activation in amyloid PET positive patients with mild cognitive impairment due to Alzheimer's disease-intermediate likelihood
niversity of Southampton0 个研究点目标入组 46 人开始时间: 2015年6月23日最近更新:
适应症
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 发起方
- 入组人数
- 46
研究概览
简要总结
暂无简介。
研究设计
- 研究类型
- Interventional
入排标准
- 性别
- All
入选标准
- •1. Capacity to make an informed decision as to whether they would like to take part in this specific clinical research trial
- •2. Male or female aged between 50-90
- •3. Minimum 7 years formal education
- •4. Be able to hear, read, write and perform study neuro-psychological tests in English
- •5. Adequate visual and auditory acuity to allow neuro-psychological testing, based on the research clinician’s judgement
- •6. Fulfil the NIA-AA criteria for the diagnosis of MCI due to AD at the screening visit. Participants must have a MOCA score of 19 to 25 inclusive at screening, at the discretion of the Principal Investigator
- •7. Have a study partner who spends at least eight hours a month with the subject. The study partner may be a close friend or a neighbour and not necessarily a close relative, spouse, son or daughter, and should be present at all visits. Every effort should be made to ensure that the study partner will be the same throughout the study. If it becomes necessary for the study partner to change, the new study partner must satisfy the requirements of this criterion and the change of study partner must be clearly documented
- •8. Been on a stable medication regime for more than 3 months prior to screening
- •9. Women of child bearing potential must use adequate contraception to prevent pregnancy and continue its use for at least four weeks after the last study dose
排除标准
- •1. Inability or refusal to provide informed consent from subject or study partner
- •2. Absence of study partner
- •3. Unlikely to cooperate in the study, not able to attend scheduled examinations and visits, or not able to follow study instructions
- •4. Participation in another study with administration of any investigational drug in the previous 3 months or already enrolled in another study
- •Medical and therapeutic criteria:
- •1. Parkinson’s disease, Dementia with Lewy Bodies or clinically significant Parkinsonian symptoms
- •2. Vascular disorder (modified Hachinski Ischaemic Scale score >4)
- •3. Recent Transient Ischaemic Attack (TIA) (within the last 3 months)
- •4. Signs of major cerebrovascular disease on MRI or CT scan prior to entry into study (i.e. evidence of an established cortical or basal ganglia infarct)
- •5. Signs of major cerebrovascular disease on the MRI performed at the screening imaging visit prior to the amyloid and microglial PET scans
- •6. Any other previous or ongoing chronic or recurrent disease of the central nervous system, including demyelinating disease or psychiatric diseases, that may have an impact on cognitive performance
- •7. Any of the following laboratory abnormalities at the screening visit:
- •7.1. Clinically significant Vitamin B12 levels less than the lower limit of normal
- •7.2. Clinically significant folate levels less than the lower limit of normal
- •7.3. Clinically significant thyroid-stimulating hormone (TSH) levels greater than the upper limit of normal and a clinically significant free thyroxine (FT4) level lower than the lower limit of normal (participants who are successfully treated for folate, vitamin B12 or thyroxine deficiencies may be re-screened after 3 months)
- •8. Subjects with a previous or present history of severe medical conditions, or medical conditions which are poorly controlled, such as hypertension or diabetes
- •9. History of alcohol or drug dependence or abuse within the last 2 years. Current alcohol >35 units/week for men or >28 units/week for women, or drug abuse
- •10. Surgical intervention planned during the study period
- •11. Treatment with immunosuppressive drugs including any systemic corticosteroid drugs (topical and nasal corticosteroids and inhaled corticosteroids for asthma are permitted)
- •12. Treatment with benzodiazepines within a period of three days prior to [11C] (R)-PK-111-95 PET scans imaging
- •13. Vaccination or immunisation with any live vaccine (e.g. polio, rubella, yellow fever) within the past 30 days
- •14. Pregnancy or breast feeding
- •15. Severe hepatic, renal or cardiac disease
- •16. Previous use of a TNFa agent
- •17. Known skin photosensitivity
- •18. Infection in past 4 weeks or active infection
- •19. Heart failure: New York Heart Association (NYHA) Grade 3-4
- •20. History of blood disorders or current WCC = 3.5 x 109/l; platelet count = 100x109/l; Hb = 10g/dl
- •21. Active or latent tuberculosis
- •22. Rheumatoid arthritis; psoriasis; psoriatic arthritis or ankylosing spondylitis
- •23. Septic arthritis in past 12 months
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