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出境医 / 临床实验 / Exercise, Brain, Cognition, OMICs, Molecular Markers and Functionality in People at Risk of Mild Cognitive Impairment
Exercise, Brain, Cognition, OMICs, Molecular Markers and Functionality in People at Risk of Mild Cognitive Impairment
Study Description
Brief Summary:
This project aims to examine the effect of a 5-month period supervised exercise intervention on brain, cognition, OMICs, Molecular Markers and functional status in older people at risk of mild cognitive impairment. Secondarily, the effect of this intervention on antioxidant capacity, lipid metabolism and glucose, physical health (functional capacity, blood pressure, body composition) and mental (quality of life and depression) will be studied, as well as other factors risk (genetic and biological) for the development of Alzheimer. A total of 100 people aged between 65 and 75 years old at risk of mild cognitive impairment will be randomly distributed in the supervised exercise intervention group (n = 50) and control group (n = 50). The design will include a 5-month intervention with measurements at pre and post intervention and a third measurement (retest) after 3 months of completion. The multicomponent supervised exercise program will include aerobic, strength, cognitive and coordinative-agility-balance works, and progression will be established in different load parameters (frequency, volume, intensity, density). Therefore, randomized controlled studies are needed to know the specific effect of dose-response considering the various dimensions in parallel such as neuroimaging, cognitive status and OMICS. This will allow us to understand from a comprehensive perspective the causes and mechanisms underlying the response. This project will significantly increase scientific knowledge about the role of exercise on brain as a therapeutic measure in people at risk of mild cognitive impairment from a multidimensional perspective. The project will have a significant impact at social and economic level by transferring the study findings to social and health setting by means of agents and networks provided for the project.
| Condition or disease | Intervention/treatment | Phase |
|---|---|---|
| Mild Cognitive Impairment Alzheimer Dementia | Behavioral: Supervised Exercise Programme | Not Applicable |
Study Design
| Study Type : | Interventional (Clinical Trial) |
| Actual Enrollment : | 98 participants |
| Allocation: | Randomized |
| Intervention Model: | Parallel Assignment |
| Masking: | Single (Outcomes Assessor) |
| Primary Purpose: | Prevention |
| Official Title: | Effect of Supervised Physical Exercise on Brain, Cognition, OMICs, Molecular Markers and Functional Status in Older People at Risk of Mild Cognitive Impairment: Rationale, Design and Methodology. |
| Actual Study Start Date : | January 15, 2018 |
| Actual Primary Completion Date : | December 31, 2020 |
| Actual Study Completion Date : | December 31, 2020 |
Arms and Interventions
| Arm | Intervention/treatment |
|---|---|
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No Intervention: Control Group
Participants randomly assigned to control group will be instructed to maintain their normal life habits with respect to physical activity and diet. During the 5 months of intervention participants from this group will receive at least one call from the researchers to be interested in their health status and inform them about the next evaluation appointment, as well as, an objectively evaluation of the main behaviours in the middle of intervention. Investigators will inform about the relevance of attending the full process and respecting the condition and rule as control. Participants from the control group will be freely offered the possibility to get involve in a similar intervention protocol at the end of the study in order to benefit from the potential positive effect of exercise.
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Experimental: Supervised exercise programme
5 months of supervised physical exercise program. The individualized and progressive Health periodization model will be applied establishing an initial individualizing period, as well as identifying any need or adaptation to apply during the exercise program. The physical exercise program will be applied in a period of progressive increase whose initial objective will be to reach the volume and intensity established by the international recommendations of physical activity (http://www.health.gov/paguidelines/) for this population. Briefly, a volume of 150 min/week of moderate-vigorous physical activity (60% -85% reserve heart rate) spread over a maximum of 5 days and including force work 2-3 days/week. The training load will progressively increase with a wave and flexible periodization.
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Behavioral: Supervised Exercise Programme
The methodology will be multicomponent, including aerobic, strength, coordination-cognitive and balance-agility. The physical exercise sessions will be designed in such a way that they work the dimensions but being attractive and motivating for the participants. Each session will include 10 minutes of warm-up with smooth running and mobility exercises; 35-40 minutes of aerobic, strength, coordination-cognitive and balance-agility progressively developed; and 10 minutes back to calm at low intensity with stretching exercises. Nutritional intervention will not be included. For quality purposes, we will use small groups (10-15 pers). After each session participants will be asked about their subjective perception of the effort and the intensity will be controlled by heart rate monitors.
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Outcome Measures
Primary Outcome Measures :
- Assessed changes from Baseline Neuroimaging Markers of Brain Structures (thickness in mm; volumes in mm) [ Time Frame: up to 24 weeks ]
Brain magnetic resonance images will be acquired in a Philips-Ingenia 3-Tesla scanner with a 32-channel digital coil exclusively dedicated to skull (Philips, The Netherlands) with the anatomical sequences:
1. Sequence T1-3D in sagittal orientation. This sequence will quantify the cortical thickness and perform morphometric studies of cortical and subcortical structures.
The pattern of cortical thickness changes and the volume of different brain structures will be obtained with the tools implemented in the software Freesurfer v5.3 and SPM12.
- Assessed changes from Baseline Neuroimaging Markers of Brain Function (level of activity in percentage) [ Time Frame: up to 24 weeks ]
Brain magnetic resonance images will be acquired in a Philips-Ingenia 3-Tesla scanner with a 32-channel digital coil exclusively dedicated to skull (Philips, The Netherlands) with the anatomical sequences:
- DTI (Diffusion Tensor Imaging) sequence in axial orientation. This sequence will allow to evaluate the properties of the microstructure of the white matter and its nerve fiber tracts.
- T2 / FLAIR sequences in axial orientation. Both sequences will be used to determine the degree of involvement of the deep and periventricular white matter using the Fazekas scale.
- Assessed changes from Baseline Cognitive Status [ Time Frame: up to 36 weeks ]
An overall SCORE (z-score values or similar;higher value for better outcome) of the 8 measurements on cognitive status will be developed to arrive at one reported value:
- - Clinical Dementia Rating -CDR: This is a valid and reliable instrument for staging dementia.
- - Mini Mental State Examination to detect cognitive deterioration.
- - Trail Making Test -TMT: This is an indicator of the speed of cognitive processing and executive functioning. 2 parts.
- - Boston Naming Test to assess the ability to name objects.
- - Clock Drawing Test -CDT: valid test for evaluation of cognitive deterioration.
- - Rey Auditory Verbal Learning Test -RAVLT: learning and verbal episodic memory.
- - The Stroop Color and Word Test -SCWT: examines basic psychological processes (cognitive flexibility, selective attention, resistance to interference from external stimuli and cognitive inhibition).
- -Controlled Oral Word Association Test -COWAT: designed to assess verbal fluency.
- Assessed changes from Baseline OMICs Analysis [ Time Frame: up to 36 weeks ]To carry out the analysis of the OMICs a full untargeted profiling will be carried out in the pre and post-intervention and retest measurements for different OMICS including metabolomics, proteomics,etc. For these analyzes, the following large equipment and techniques will be used, ultrahigh performance liquid chromatography / mass spectrometry (LC-quadrupole-time of flight, QTPF-MS, Agilent 1200-Agilent 6520); capillary electrophoresis / mass spectrometry (CE, TOF-MS, Agilent 7100-Agilent 6210) and gas chromatography / mass spectrometry (GC, EI-GC), mass spectrometry (capillary electrophoresis / mass spectrometry, CE-TOF-MS; Q-MS, (Quadrupolo, Agilent 7890A-Agilent 5965C) In addition, data processing platforms will be used, both mass databases and statistical tools for multivariate analysis: Mass Hunter, Mass Profiler Professional, SIMCA, MATLAB.
- Assessed changes from Baseline Molecular Makers [ Time Frame: up to 36 weeks ]The telomere length will be measured by quantitative real-time PCR (RT-qPCR) following the method previusly described. Briefly, the DNA from the cell fraction of the blood will be extracted with the DNeasy Blood & Tissue Kit (Qiagen) following the manufacturer's specifications. The DNA concentration of the sample, as well as its integrity, will be confirmed in a NanoDrop 2000. For the RT-qPCR the telomeric sequence will be amplified as well as a single copy gene sequence to normalize. Calibration curves will be made with serial dilutions of known concentration of both the gene sequence as well as an oligo specially designed to contain 114 copies of the TTAGGG telomeric sequence. The RT-qPCR will be carried out with 20 ng of DNA using myScript SYBR Green PCR Kit (ROCHE). The PCR conditions are: 10 min at 95 ° C, followed by 40 cycles of 95 ° C for 15 sec and 60 ° C for 1 min, followed by the corresponding dissociation curve.
Secondary Outcome Measures :
- Assessed changes from Baseline Physical Health Parameters on Functional capacity: Muscle-skeletal [ Time Frame: up to 36 weeks ]
Consist in a Standardized field test battery including:
1.Muscle-skeletal (number of repetitions)
- Assessed changes from Baseline Physical Health Parameters on Functional capacity: Cardiorespiratory fitness [ Time Frame: up to 36 weeks ]
Consist in a Standardized field test battery including:
2.Cardiorespiratory fitness (metres and estimated maximal oxygen uptake-VO2max)
- Assessed changes from Baseline Physical Health Parameters on Functional capacity:Agility-motor coordination [ Time Frame: up to 36 weeks ]
Consist in a Standardized field test battery including:
3.Agility-motor coordination (seconds)
- Assessed changes from Baseline Physical Health Parameters on Functional capacity: Flexibility [ Time Frame: up to 36 weeks ]
Consist in a Standardized field test battery including:
4.Flexibility (centimetres)
- Assessed changes from Baseline Physical Health Parameters on Functional capacity: Handgrip strength [ Time Frame: up to 36 weeks ]
Consist in a Standardized field test battery including:
5.Handgrip strength (kilograms)
- Assessed changes from Baseline Incremental Exercise test: [ Time Frame: up to 36 weeks ]All subjects performed a graded exercise test on a treadmill (Lode Valiant, Groningen, Netherlands) until exhaustion. Specifically, a modified Bruce protocol previously used in a similar sample and designed for a geriatric population. Participants were asked if they had ever walking on a treadmill and instructed of the incremental test. If necessary, we familiarized them with the treadmill by walking slowly until the initial protocol speed was achieved. Before start, subjects were instructed not to talk during the test because this is known to affect the breathing and gas exchange. Participants began walking to 2.7 km/h at 0% inclination grade, every 2 minutes the speed or/and inclination were increased according the modified Bruce protocol. VO2peak was considered as the highest observed value of oxygen consumption obtained in the last three intervals of 10 seconds.
- Assessed changes from Baseline Physical Health by the Scale of instrumental activities of the daily life of Lawton and Brody [ Time Frame: up to 36 weeks ]This scale measures the possibility of carrying out daily instrumental activities in daily life (Total score 0 to 8; higher value for better outcome).
- Assessed changes from Baseline Physical Health of hemodynamic status [ Time Frame: up to 36 weeks ]
the hemodynamic status will be measured twice after 5 minutes at rest using a upper blood pressure monitor (M6 Omron):
- -Systolic and diastolic Blood pressure (mmHg)
- - Resting heart rate (beats per minute)
- Assessed changes from Baseline Physical Health of Body Composition: Weight [ Time Frame: up to 36 weeks ]
Body Composition will be measured using a bio-impedanciometer (BIA; Tanita-MC-780MA MF 8-elc) including:
1.Weight (in kilograms)
- Assessed changes from Baseline Physical Health of Body Composition:Height [ Time Frame: up to 36 weeks ]
Body Composition will be measured using a Stadiometer (SECA):
2.Height (in meters)
- Assessed changes from Baseline Physical Health of Body Composition: Waist Circumference [ Time Frame: up to 36 weeks ]
Body Composition will be measured using an anthopometric flexible tape (SECA):
3.Waist circumference (in centimetres)
- Assessed changes from Baseline Physical Health of Body Composition: Body mass index [ Time Frame: up to 36 weeks ]
Body Composition will be measured as:
4.Calculated body mass index (weight and height will be combined to report BMI in kg/m^2)
- Assessed changes from Baseline Physical Health of Body Composition: Total body fluids [ Time Frame: up to 36 weeks ]
Body Composition will be measured using a bio-impedanciometer (BIA; Tanita-MC-780MA MF 8-elc) including:
5. Total body fluids (litres).
- Assessed changes from Baseline Blood Sample of the Cardio-metabolic Risk Factors Profile: Glucose. [ Time Frame: up to 36 weeks ]
The Cardio-metabolic Risk Factors Profile will be measured by several biochemical parameters including:
1.Glucose (mg/dl)
- Assessed changes from Baseline Blood Sample of the Cardio-metabolic Risk Factors Profile:Total cholesterol [ Time Frame: up to 36 weeks ]
The Cardio-metabolic Risk Factors Profile will be measured by several biochemical parameters including:
2.Total cholesterol (mg/dl)
- Assessed changes from Baseline Blood Sample of the Cardio-metabolic Risk Factors Profile:HDL cholesterol [ Time Frame: up to 36 weeks ]
The Cardio-metabolic Risk Factors Profile will be measured by several biochemical parameters including:
3.HDL cholesterol (mg/dl)
- Assessed changes from Baseline Blood Sample of the Cardio-metabolic Risk Factors Profile: LDL Cholesterol [ Time Frame: up to 36 weeks ]
The Cardio-metabolic Risk Factors Profile will be measured by several biochemical parameters including:
4.LDL cholesterol (mg/dl)
- Assessed changes from Baseline Blood Sample of the Cardio-metabolic Risk Factors Profile:triglycerides [ Time Frame: up to 36 weeks ]
The Cardio-metabolic Risk Factors Profile will be measured by several biochemical parameters including:
5.triglycerides (mg/dl)
- Assessed changes from Baseline Blood Sample of the Cardio-metabolic Risk Factors Profile:Apolipoprotein B [ Time Frame: up to 36 weeks ]
The Cardio-metabolic Risk Factors Profile will be measured by several biochemical parameters including:
6.Apolipoprotein B (g/l)
- Assessed changes from Baseline Blood Sample of the Cardio-metabolic Risk Factors Profile:Insulin [ Time Frame: up to 36 weeks ]
The Cardio-metabolic Risk Factors Profile will be measured by several biochemical parameters including:
7.Insulin (μlU/mL)
- Assessed changes from Baseline Blood Sample of the Cardio-metabolic Risk Factors Profile: HOMA [ Time Frame: up to 36 weeks ]
The Cardio-metabolic Risk Factors Profile will be measured by several biochemical parameters including:
8.Insulin resistance (HOMA is calculated as fasting insulin [pmol/l]/6.945).
- Assessed changes from Baseline Blood Sample of the Antioxidant Capacity [ Time Frame: up to 36 weeks ]
The Antioxidant Capacity will be measured by the following markers:
- - The 2,2'-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS)
- Oxygen radical absorption capacity (micromol/100 milliliter)
- Ferric reducing antioxidant potential (mmol/l).
- Assessed changes from Baseline Blood Sample of the Neurotrophic Factor Derived from the Brain (neurotransmitter) [ Time Frame: up to 36 weeks ]
The Neurotrophic Factor Derived from the Brain will be measured as followed:
1.-The brain-derived neurotrophic factor (BDNF in ug/L) will be measured in serum using the ELISA Kit (Enzyme-linkerd immunosorbent Assay) of RAyBio Human BDNF (RAFER). This marker is highly related to brain function and could mediate or explain to a certain extent the results of the EFICCOM project.
- Assessed of Baseline levels for Cerebrospinal fluid: [ Time Frame: baseline ]
The Cerebrospinal fluid will be measured as followed:
1.- Lumbar punctures will be performed accordinly with clinical standards and procedures manual at the specific unit of Neurology from the Puerta del Mar Hospital. CSF samples will be frozen on dry-ice soon after collection (~1 hour) and shipped to the university unit responsible for the analysis. This marker is highly relevant for the identifciation of the real risk for mild cognitive impairment using gold standard biomarkers of the EFICCOM project.
- Assessed changes from Baseline Quality of life as assessed through the quality of life questionnaire related to health (Short-Form Health Survey 36 -SF36) [ Time Frame: up to 36 weeks ]The Short-Form Health Survey 36 -SF36 includes 8 dimensions scored from 0 to 100 (higher value for better outcome).
- Assessed changes from Baseline of Depression using the Geriatric Depression Scale (GDS) [ Time Frame: up to 36 weeks ]The Depression will be measured using the Geriatric Depression Scale-GDS which is composed of 15 questions with dichotomous answers (yes / no) specifically designed for the elderly population and will be used to rule out depression. The GDS score from 0 to 15, where higher value means a worse outcome.
- Assessed changes from Baseline of Sociodemographic Characteristics: Age. [ Time Frame: up to 36 weeks ]
The Sociodemographic Characteristics will be measured by several items including:
1. Age (years)
- Assessed changes from Baseline of Sociodemographic Characteristics.Sex. [ Time Frame: up to 36 weeks ]
The Sociodemographic Characteristics will be measured by several items including:
2. Sex (male or female)
- Assessed changes from Baseline of Sociodemographic Characteristics.Marital Status. [ Time Frame: up to 36 weeks ]
The Sociodemographic Characteristics will be measured by several items including:
3.Marital status (Categorical variable: Single, Married or with a partner, Widowed and without partner, legally separated or divorced)
- Assessed changes from Baseline of Sociodemographic Characteristics.Educational level and socio-economic status. [ Time Frame: up to 36 weeks ]
The Sociodemographic Characteristics will be measured by several items including:
4. Educational level and socio-economic status (Ordinal variables where the higher the better: low, middle, high for Educational level; Low and high for socio-economic status)
- Assessed changes from Baseline of Sociodemographic Characteristics.Family history of dementia. [ Time Frame: up to 36 weeks ]
The Sociodemographic Characteristics will be measured by several items including:
5.Family history of dementia (yes/no and details),
- Assessed changes from Baseline of Sociodemographic Characteristics.Medication. [ Time Frame: up to 36 weeks ]
The Sociodemographic Characteristics will be measured by several items including:
6.Number and type of Medications (register)
- Assessed changes from Baseline of Sociodemographic Characteristics. Other pathologies. [ Time Frame: up to 36 weeks ]
The Sociodemographic Characteristics will be measured by several items including:
7.Presence of other pathologies (list of diseases).
Eligibility Criteria
| Ages Eligible for Study: | 65 Years to 75 Years (Older Adult) |
| Sexes Eligible for Study: | All |
| Accepts Healthy Volunteers: | No |
Criteria
Inclusion Criteria:
- Do not present any physical illness that prevents you from doing physical activity
- Able to communicate without problems
- Able to read and understand informed consent as well as the object of the study
Exclusion Criteria:
- Acute or terminal illness
- Diagnosis of Alzheimer's
- History of cranioencephalic trauma with loss of consciousness
- History of cerebral infarction, epilepsy, brain tumor
- Unstable cardiovascular disease
- Recent fracture in upper or lower limb
- Alcohol abuse and / or habitual drug use or drug infusion pump
- Presence of pacemakers, defibrillator, metallic implants in the head, intraocular and / or maxillo-facial structures, dental prostheses incompatible with magnetic resonance studies
- Intravascular devices (stent, Coil, filter), heart valve, aneurysm clip, neurostimulator, intravascular catheter with metal or cardiovascular bypass
- Severe visual or auditory problems, implant in the middle / inner ear
- Do not want to complete the study or be assigned to the control group
- He/she is participating in another research study that may influence the present project.
Contacts and Locations
Locations
| Spain | |
| University of Cádiz | |
| Cadiz, Spain, 11001 | |
Sponsors and Collaborators
University of Cadiz
Centro de Excelencia en Metabolómica y Bioanálisis (CEMBIO)
Servicio Central de Neuroimagen de la Universidad Pablo de Olavide
Consejería de Salud y Bienestar Social, Andalucía
Investigators
| Principal Investigator: | David Jiménez Pavón, PhD | University of Cádiz |
| Tracking Information | |||||
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| First Submitted Date ICMJE | June 1, 2018 | ||||
| First Posted Date ICMJE | April 23, 2019 | ||||
| Last Update Posted Date | April 27, 2021 | ||||
| Actual Study Start Date ICMJE | January 15, 2018 | ||||
| Actual Primary Completion Date | December 31, 2020 (Final data collection date for primary outcome measure) | ||||
| Current Primary Outcome Measures ICMJE |
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| Original Primary Outcome Measures ICMJE |
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| Change History | |||||
| Current Secondary Outcome Measures ICMJE |
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| Original Secondary Outcome Measures ICMJE |
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| Current Other Pre-specified Outcome Measures | Not Provided | ||||
| Original Other Pre-specified Outcome Measures | Not Provided | ||||
| Descriptive Information | |||||
| Brief Title ICMJE | Exercise, Brain, Cognition, OMICs, Molecular Markers and Functionality in People at Risk of Mild Cognitive Impairment | ||||
| Official Title ICMJE | Effect of Supervised Physical Exercise on Brain, Cognition, OMICs, Molecular Markers and Functional Status in Older People at Risk of Mild Cognitive Impairment: Rationale, Design and Methodology. | ||||
| Brief Summary | This project aims to examine the effect of a 5-month period supervised exercise intervention on brain, cognition, OMICs, Molecular Markers and functional status in older people at risk of mild cognitive impairment. Secondarily, the effect of this intervention on antioxidant capacity, lipid metabolism and glucose, physical health (functional capacity, blood pressure, body composition) and mental (quality of life and depression) will be studied, as well as other factors risk (genetic and biological) for the development of Alzheimer. A total of 100 people aged between 65 and 75 years old at risk of mild cognitive impairment will be randomly distributed in the supervised exercise intervention group (n = 50) and control group (n = 50). The design will include a 5-month intervention with measurements at pre and post intervention and a third measurement (retest) after 3 months of completion. The multicomponent supervised exercise program will include aerobic, strength, cognitive and coordinative-agility-balance works, and progression will be established in different load parameters (frequency, volume, intensity, density). Therefore, randomized controlled studies are needed to know the specific effect of dose-response considering the various dimensions in parallel such as neuroimaging, cognitive status and OMICS. This will allow us to understand from a comprehensive perspective the causes and mechanisms underlying the response. This project will significantly increase scientific knowledge about the role of exercise on brain as a therapeutic measure in people at risk of mild cognitive impairment from a multidimensional perspective. The project will have a significant impact at social and economic level by transferring the study findings to social and health setting by means of agents and networks provided for the project. | ||||
| Detailed Description | Not Provided | ||||
| Study Type ICMJE | Interventional | ||||
| Study Phase ICMJE | Not Applicable | ||||
| Study Design ICMJE | Allocation: Randomized Intervention Model: Parallel Assignment Masking: Single (Outcomes Assessor) Primary Purpose: Prevention |
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| Condition ICMJE |
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| Intervention ICMJE | Behavioral: Supervised Exercise Programme
The methodology will be multicomponent, including aerobic, strength, coordination-cognitive and balance-agility. The physical exercise sessions will be designed in such a way that they work the dimensions but being attractive and motivating for the participants. Each session will include 10 minutes of warm-up with smooth running and mobility exercises; 35-40 minutes of aerobic, strength, coordination-cognitive and balance-agility progressively developed; and 10 minutes back to calm at low intensity with stretching exercises. Nutritional intervention will not be included. For quality purposes, we will use small groups (10-15 pers). After each session participants will be asked about their subjective perception of the effort and the intensity will be controlled by heart rate monitors.
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| Study Arms ICMJE |
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| Publications * | Not Provided | ||||
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* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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| Recruitment Information | |||||
| Recruitment Status ICMJE | Completed | ||||
| Actual Enrollment ICMJE |
98 | ||||
| Original Estimated Enrollment ICMJE |
100 | ||||
| Actual Study Completion Date ICMJE | December 31, 2020 | ||||
| Actual Primary Completion Date | December 31, 2020 (Final data collection date for primary outcome measure) | ||||
| Eligibility Criteria ICMJE |
Inclusion Criteria:
Exclusion Criteria:
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| Sex/Gender ICMJE |
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| Ages ICMJE | 65 Years to 75 Years (Older Adult) | ||||
| Accepts Healthy Volunteers ICMJE | No | ||||
| Contacts ICMJE | Contact information is only displayed when the study is recruiting subjects | ||||
| Listed Location Countries ICMJE | Spain | ||||
| Removed Location Countries | |||||
| Administrative Information | |||||
| NCT Number ICMJE | NCT03923712 | ||||
| Other Study ID Numbers ICMJE | DEP2016-76123-R PI-0002-2017 ( Other Grant/Funding Number: Fondos FEDER-ITI, Junta de Andalucia ) |
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| Has Data Monitoring Committee | No | ||||
| U.S. FDA-regulated Product |
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| IPD Sharing Statement ICMJE |
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| Responsible Party | David Jimenez Pavon, University of Cadiz | ||||
| Study Sponsor ICMJE | University of Cadiz | ||||
| Collaborators ICMJE |
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| Investigators ICMJE |
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| PRS Account | University of Cadiz | ||||
| Verification Date | April 2021 | ||||
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ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |
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