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临床试验/NL-OMON48277
NL-OMON48277已完成不适用

Artificial Gravity Bed rest study - AGBRESA

Department of muscle and bone metabolism0 个研究点目标入组 24 人开始时间: 待定最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
发起方
入组人数
24

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

年龄范围
18 至 99(—)

入选标准

  • * Physically and mentally healthy test subjects that are able and declare their willingness to participate in the entire study and successfully passed the psychological and medical screening
  • * Aged between 24 and 55 years old with a Body Mass Index (BMI) of 19 - 30 kg/m2, height between 153 -190 cm
  • * Non-smoker, for at least six months before the start of the study
  • * Capable of completing the study
  • * Willing to stay in bed with or without weight-bearing (artificial gravity) for 60 days
  • * Demonstrable medical insurance and official certificate of absence of criminal record
  • * Demonstrable dentist certificate

排除标准

  • Drug, medication or alcohol abuse (regular consumption of more than 20-30 g alcohol/day)
  • * A requirement for any prescription medications
  • * Vegetarian, vegan (during the study)
  • * Migraine, chronic headache
  • * Insomnia or other sleep disorders
  • * Previous psychiatric illness
  • * Claustrophobia
  • * Increased intraocular pressure
  • * Any eye disorder that could significantly impact or jeopardize visual function
  • * Hyperopia > +5.0 Diopters
  • * Myopia > - 6 Diopters
  • * Astigmatism > 3 Diopters
  • * History of laser surgery, glaucoma and retinal surgery
  • * Hiatus hernia
  • * Gastro-oesophageal reflux
  • * Gastrointestinal stenosis, dysphagia
  • * Current or history of chronic bowel disease
  • * Diabetes mellitus
  • * Rheumatic illness
  • * Current or a history of (chronic) pulmonary disease
  • * Current muscle or joint disease or disorder
  • * History of prolapsed intervertebral disc
  • * Chronic back complaints
  • * Bone fractures less than 1 year prior to study
  • * Kidney disorder: deviations from normal values for creatinine in plasma. Deviations from normal values (Normal values for creatinine in plasma < 1.20 mg/dl)** and eGFR***
  • * History of kidney stones
  • * History of (chronic) cystitis, hydronephrosis, pyelonephritis
  • * Anaemia: Hb under normal values. (Normal values of Hb for men: 13.0-17.5 g/dl; women 12.0-16.0 g/dl)**
  • * Elevated risk of thrombosis ****
  • * Pronounced orthostatic intolerance (< 10 min standing and/or not able to withstand artificial gravity)
  • * History of elevated intracranial pressure and associated central nervous disorders
  • * Current or history of hemorrhagic diathesis or coagulations disorders
  • * History of spinal cord disease, including radiculopathy, myelopathy, or neuropathy
  • * History of skull/cranial surgeries
  • * History of adverse events to local anesthesia
  • * An abnormal androgen or estrogen status (tested only upon speculation)
  • * Female candidate is pregnant
  • * Female candidate is on oral contraceptives or contraceptive patch up to 4-6 months prior to study start
  • * Female candidate is in menopause or post-menopause, or is on hormone replacement therapy
  • * Female subjects without a normal length menstrual cycle (20-36 days)
  • * Inability or unwillingness to perform the required tests
  • * A medical or orthopedic condition that would preclude bed rest or exercise, as is determined by the examining and overseeing physician of the bed rest study
  • * Not within two standard deviations of normal bone mineral density (measured by dual-energy x-ray absorptiometry) for hip and lumbar spine based on T-score (young adult-peak bone mass, Caucasian, sex, but not age-adjusted)
  • * Metal implants (or objects like metallic slivers in the eyes, or bullets or shrapnel in the body) or other kinds of bone synthesis materials that are not well-fixed; tattoos or permanent make-up incompatible with MRI
  • * Participation in a (clinical) study within the last 3 months before start of this study that confounds participation in the AGBRESA study
  • * Known history of vertigo, nystagmus, neurological conditions, vestibular or gait disorders
  • * Previous heart surgery
  • * History of cerebrovascular or brain disease, tumor, injury, surgery or malformation
  • * Disorders of CSF circulation (i.e. hydrocephalus, idiopathic intracranial hypertension)
  • * Tinnitus; sensorineural hearing loss > 30 dB, or implanted hearing de

研究者

发起方
Department of muscle and bone metabolism

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Artificial Gravity Bed rest study | 临床试验