<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE trials [
<!ELEMENT trials (trial+)>

<!ELEMENT trial (main,contacts,countries,criteria,health_condition_code,health_condition_keyword,intervention_code,
          intervention_keyword,primary_outcome,secondary_outcome,secondary_sponsor,secondary_ids,source_support,ethics_reviews)>

<!ELEMENT main (trial_id,utrn?,reg_name,date_registration,primary_sponsor,public_title,acronym?,scientific_title,scientific_acronym?,
          date_enrolment,type_enrolment,target_size,recruitment_status,url?,study_type,study_design,phase,hc_freetext?,i_freetext?,results_actual_enrolment,results_date_completed,results_url_link,results_summary,           results_date_posted,results_date_first_publication,results_baseline_char,results_participant_flow,results_adverse_events,results_outcome_measures,results_url_protocol,results_IPD_plan, results_IPD_description)>
<!ELEMENT trial_id (#PCDATA)>
<!ELEMENT utrn (#PCDATA)>
<!ELEMENT reg_name (#PCDATA)>
<!ELEMENT date_registration (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT primary_sponsor (#PCDATA)>
<!ELEMENT public_title (#PCDATA)>
<!ELEMENT acronym (#PCDATA)>
<!ELEMENT scientific_title (#PCDATA)>
<!ELEMENT scientific_acronym (#PCDATA)>
<!ELEMENT date_enrolment (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT type_enrolment (#PCDATA)>
<!ELEMENT target_size (#PCDATA)>
<!ELEMENT recruitment_status (#PCDATA)><!-- Pending,Recruiting,Suspended,Complete,Other -->
<!ELEMENT url (#PCDATA)>
<!ELEMENT study_type (#PCDATA)><!-- interventional,observational -->
<!ELEMENT study_design (#PCDATA)>
<!ELEMENT phase (#PCDATA)>
<!ELEMENT hc_freetext (#PCDATA)>
<!ELEMENT i_freetext (#PCDATA)>
<!ELEMENT results_actual_enrolment (#PCDATA)>
<!ELEMENT results_date_completed (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT results_url_link (#PCDATA)>
<!ELEMENT results_summary (#PCDATA)>
<!ELEMENT results_date_posted (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT results_date_first_publication (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT results_baseline_char (#PCDATA)>
<!ELEMENT results_participant_flow (#PCDATA)>
<!ELEMENT results_adverse_events (#PCDATA)>
<!ELEMENT results_outcome_measures (#PCDATA)>
<!ELEMENT results_url_protocol (#PCDATA)>
<!ELEMENT results_IPD_plan (#PCDATA)>
<!ELEMENT results_IPD_description (#PCDATA)>


<!ELEMENT contacts (contact+)>
<!ELEMENT contact (type,firstname,middlename,lastname,address,city,country1,zip,telephone,email,affiliation)>
<!ELEMENT type (#PCDATA)><!-- Public,Scientific -->
<!ELEMENT firstname (#PCDATA)>
<!ELEMENT middlename (#PCDATA)>
<!ELEMENT lastname (#PCDATA)>
<!ELEMENT address (#PCDATA)>
<!ELEMENT city (#PCDATA)>
<!ELEMENT country1 (#PCDATA)>
<!ELEMENT zip (#PCDATA)>
<!ELEMENT telephone (#PCDATA)>
<!ELEMENT email (#PCDATA)>
<!ELEMENT affiliation (#PCDATA)>

<!ELEMENT countries (country2+)>
<!ELEMENT country2 (#PCDATA)>

<!ELEMENT criteria (inclusion_criteria,agemin,agemax,gender,exclusion_criteria)>
<!ELEMENT inclusion_criteria (#PCDATA)>
<!ELEMENT agemin (#PCDATA)>
<!ELEMENT agemax (#PCDATA)>
<!ELEMENT gender (#PCDATA)>
<!ELEMENT exclusion_criteria (#PCDATA)>

<!ELEMENT health_condition_code (hc_code+)>
<!ELEMENT hc_code (#PCDATA)>

<!ELEMENT health_condition_keyword (hc_keyword+)>
<!ELEMENT hc_keyword (#PCDATA)>

<!ELEMENT intervention_code (i_code+)>
<!ELEMENT i_code (#PCDATA)>

<!ELEMENT intervention_keyword (i_keyword+)>
<!ELEMENT i_keyword (#PCDATA)>

<!ELEMENT primary_outcome (prim_outcome+)>
<!ELEMENT prim_outcome (#PCDATA)>

<!ELEMENT secondary_outcome (sec_outcome+)>
<!ELEMENT sec_outcome (#PCDATA)>

<!ELEMENT secondary_sponsor (sponsor_name+)>
<!ELEMENT sponsor_name (#PCDATA)>

<!ELEMENT secondary_ids (secondary_id+)>
<!ELEMENT secondary_id (sec_id,issuing_authority)>
<!ELEMENT sec_id (#PCDATA)>
<!ELEMENT issuing_authority (#PCDATA)>

<!ELEMENT source_support (source_name+)>
<!ELEMENT source_name (#PCDATA)>

<!ELEMENT ethics_reviews (ethics_review+)>
<!ELEMENT ethics_review (status,approval_date,contact_name,contact_address,contact_phone,contact_email)>
<!ELEMENT status (#PCDATA)><!-- Not approved,Approved,NA -->
<!ELEMENT approval_date (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT contact_name (#PCDATA)>
<!ELEMENT contact_address (#PCDATA)>
<!ELEMENT contact_phone (#PCDATA)>
<!ELEMENT contact_email (#PCDATA)>
]>
<trials>
  <trial>
    <main>
      <trial_id>IRCT20220410054475N1</trial_id>
      <utrn></utrn>
      <reg_name>IRCT</reg_name>
      <date_registration>2022-04-13</date_registration>
      <primary_sponsor>Tehran University of Medical Sciences</primary_sponsor>
      <public_title>Assessment of Treatment Effect on Brain Changes in Obstructive Sleep Apnea Syndrome Using MRI</public_title>
      <acronym></acronym>
      <scientific_title>Assessment of Treatment Effect on Brain Structural, Functional and Metabolic Changes in Obstructive Sleep Apnea Syndrome Using Magnetic Resonance Imaging</scientific_title>
      <scientific_acronym></scientific_acronym>
      <date_enrolment>2022-08-21</date_enrolment>
      <type_enrolment>anticipated</type_enrolment>
      <target_size>12</target_size>
      <recruitment_status>Complete</recruitment_status>
      <url>https://irct.ir/trial/62870</url>
      <study_type>interventional</study_type>
      <study_design>Randomization: N/A, Blinding: Not blinded, Placebo: Not used, Assignment: Single, Purpose: Treatment.</study_design>
      <phase>N/A</phase>
      <hc_freetext>Obstructive Sleep Apnea (OSA).</hc_freetext>
      <i_freetext>Intervention group: Patients with obstructive sleep apnea syndrome who are treated with CPAP device. Control group: Healthy people (no obstructive sleep apnea syndrome) without intervention.</i_freetext>
      <results_actual_enrolment></results_actual_enrolment>
      <results_date_completed></results_date_completed>
      <results_url_link></results_url_link>
      <results_summary></results_summary>
      <results_date_posted></results_date_posted>
      <results_date_first_publication></results_date_first_publication>
      <results_baseline_char></results_baseline_char>
      <results_participant_flow></results_participant_flow>
      <results_adverse_events></results_adverse_events>
      <results_outcome_measures></results_outcome_measures>
      <results_url_protocol></results_url_protocol>
      <results_IPD_plan>Undecided - It is not yet known if there will be a plan to make this available</results_IPD_plan>
      <results_IPD_description>Justification or reason for indecision in sharing IPD is There is no more information.</results_IPD_description>
    </main>
    <contacts>
      <contact>
        <type>public</type>
        <firstname>Dr. Mohammad Ali Oghabian</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>Dr. Gharib Street</address>
        <city>Tehran</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>۱۴۱۹۷۳۳۱۴۱</zip>
        <telephone>+98 21 6690 7518</telephone>
        <email>oghabian@sina.tums.ac.ir</email>
        <affiliation>Tehran University of Medical Sciences</affiliation>
      </contact>
      <contact>
        <type>scientific</type>
        <firstname>Dr. Mohammad Ali Oghabian</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>Dr. Gharib Street</address>
        <city>Tehran</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>۱۴۱۹۷۳۳۱۴۱</zip>
        <telephone>+98 21 6690 7518</telephone>
        <email>oghabian@sina.tums.ac.ir</email>
        <affiliation>Tehran University of Medical Sciences</affiliation>
      </contact>
    </contacts>
    <countries>
      <country2>Iran (Islamic Republic of)</country2>
    </countries>
    <criteria>
      <inclusion_criteria>Patients who have been diagnosed with obstructive sleep apnea syndrome after a sleep test.</inclusion_criteria>
      <agemin>18 years</agemin>
      <agemax>no limit</agemax>
      <gender>Both</gender>
      <exclusion_criteria>People who have a background of respiratory disease (other than apnea).
People with a history of malignancy.
People with a history of cardiovascular disease.
People with a history of neurological diseases (such as neurodegenerative diseases, epilepsy and head trauma).
People who abuse alcohol or drugs or take psychotropic drugs while studying.
People who have structural lesions in the brain.
People who, in addition to obstructive sleep apnea, also have hypoventilation syndrome.
People with metabolic diseases (such as polycythemia).
Patients who, after PSG and clinical tests, are diagnosed as not candidates for CPAP treatment.
People who have contraindications to MRI scans (such as people with cardiac pacemakers and metal implants or even people with a fear of closed space (Claustrophobia)).</exclusion_criteria>
    </criteria>
    <health_condition_code>
      <hc_code>G47.33</hc_code>
    </health_condition_code>
    <health_condition_keyword>
      <hc_keyword>Obstructive sleep apnea (adult) (pediatric)</hc_keyword>
    </health_condition_keyword>
    <intervention_code>
      <i_code>Treatment - Devices</i_code>
    </intervention_code>
    <intervention_keyword>
      <i_keyword>Intervention group: Patients with obstructive sleep apnea syndrome who are treated with CPAP device. Control group: Healthy people (no obstructive sleep apnea syndrome) without intervention</i_keyword>
    </intervention_keyword>
    <primary_outcome>
      <prim_outcome>Brain Cortical Thickness. Timepoint: Before treatment, 6 months after treatment. Method of measurement: Analysis of structural MR images.</prim_outcome>
      <prim_outcome>Functional connection of brain areas (rsFC). Timepoint: Before treatment, 6 months after treatment. Method of measurement: Analysis of functional MR images.</prim_outcome>
      <prim_outcome>Oxygen Extraction Fraction (OEF). Timepoint: Before treatment, 6 months after treatment. Method of measurement: Analysis of structural MR images.</prim_outcome>
    </primary_outcome>
    <secondary_outcome>
      <sec_outcome></sec_outcome>
    </secondary_outcome>
    <secondary_sponsor>
      <sponsor_name></sponsor_name>
    </secondary_sponsor>
    <secondary_ids>
      <secondary_id>
        <sec_id></sec_id>
        <issuing_authority></issuing_authority>
      </secondary_id>
    </secondary_ids>
    <source_support>
      <source_name>Tehran University of Medical Sciences</source_name>
    </source_support>
    <ethics_reviews>
      <ethics_review>
        <status>Approved</status>
        <approval_date>2022-02-21</approval_date>
        <contact_name>Ethics committee of Tehran University of Medical Sciences (Faculty of Medicine)</contact_name>
        <contact_address>Poursina Street Tehran Tehran Iran (Islamic Republic of)</contact_address>
        <contact_phone></contact_phone>
        <contact_email></contact_email>
      </ethics_review>
    </ethics_reviews>
  </trial>
</trials>
