<?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>IRCT20220111053690N1</trial_id>
      <utrn></utrn>
      <reg_name>IRCT</reg_name>
      <date_registration>2022-05-01</date_registration>
      <primary_sponsor>Tehran University of Medical Sciences</primary_sponsor>
      <public_title>The effect of application of dexamethasone in the middle ear during surgery</public_title>
      <acronym></acronym>
      <scientific_title>The effect of application of dexamethasone in the middle ear during stapedotomy on hearing results of patients with otosclerosis</scientific_title>
      <scientific_acronym></scientific_acronym>
      <date_enrolment>2022-04-21</date_enrolment>
      <type_enrolment>anticipated</type_enrolment>
      <target_size>22</target_size>
      <recruitment_status>Complete</recruitment_status>
      <url>https://irct.ir/trial/61211</url>
      <study_type>interventional</study_type>
      <study_design>Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Randomization is block. Four blocks are defined from intervention group (A) and control (B). (AABB, ABAB, ABBA, BABA, BAAB)
It is written on cards 1 to 6 and the cards are placed in the envelope. The cards are then randomly selected and a random string is made from the sequence of selected cards. Patients in the intervention and control groups are included in the study based on this sequence, Blinding description: . The study is single blind. The surgeon and researcher are aware of the groups but the patient and the data monitoring committee are kept blind.</study_design>
      <phase>3</phase>
      <hc_freetext>otosclerosis.</hc_freetext>
      <i_freetext>Intervention 1: Intervention group: In the control group, routine stapedotomy will be performed, and in the intervention group, immediately after perforation of the footplate by the perforator, 0.3 cc of dexamethasone will be placed in the middle ear and on the oval window, and a Teflon piston or titanium prosthesis will be placed inside the oval window. Will be placed. The area around the prosthesis in the oval window will be covered with fat removed from the lobule, and without placing the foam gel in the middle ear, the flap will be returned and the canal foam gel will be embedded. Intervention 2: Control group: routine stapedotomy will be performed.</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>Behrooz Amirzargar</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>Emam Khomeini Hospital, Keshavarz Blvd</address>
        <city>tehran</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>1145765111</zip>
        <telephone>+98 21 6119 0000</telephone>
        <email>amirzargarb@yahoo.com</email>
        <affiliation>Tehran University of Medical Sciences</affiliation>
      </contact>
      <contact>
        <type>scientific</type>
        <firstname>Behrooz Amirzargar</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>Emam Khomeini Hospital, Keshavarz Blvd</address>
        <city>Tehran</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>1145765111</zip>
        <telephone>+98 21 6119 0000</telephone>
        <email>amirzargarb@yahoo.com</email>
        <affiliation>Tehran University of Medical Sciences</affiliation>
      </contact>
    </contacts>
    <countries>
      <country2>Iran (Islamic Republic of)</country2>
    </countries>
    <criteria>
      <inclusion_criteria>Patients with otosclerosis whose conductive hearing impairment exceeds 30 dB on recent audiometry in the affected ear</inclusion_criteria>
      <agemin>no limit</agemin>
      <agemax>no limit</agemax>
      <gender>Both</gender>
      <exclusion_criteria>Patients who have a history of previous stapedotomy surgery
a history of other ear diseases, such as meningitis or upper semicircular canal dehiscence
will be excluded if they do not return within the specified time after surgery.</exclusion_criteria>
    </criteria>
    <health_condition_code>
      <hc_code>H80</hc_code>
    </health_condition_code>
    <health_condition_keyword>
      <hc_keyword>Otosclerosis</hc_keyword>
    </health_condition_keyword>
    <intervention_code>
      <i_code>Treatment - Surgery</i_code>
      <i_code>Treatment - Surgery</i_code>
    </intervention_code>
    <intervention_keyword>
      <i_keyword>Intervention group: In the control group, routine stapedotomy will be performed, and in the intervention group, immediately after perforation of the footplate by the perforator, 0.3 cc of dexamethasone will be placed in the middle ear and on the oval window, and a Teflon piston or titanium prosthesis will be placed inside the oval window. Will be placed. The area around the prosthesis in the oval window will be covered with fat removed from the lobule, and without placing the foam gel in the middle ear, the flap will be returned and the canal foam gel will be embedded.</i_keyword>
      <i_keyword>Control group: routine stapedotomy will be performed.</i_keyword>
    </intervention_keyword>
    <primary_outcome>
      <prim_outcome>Hearing improvement after dexamethasone use during middle ear surgery in otosclerosis in patients with a gap of 30 dB. Timepoint: Before and 6 months after complete high frequency audiometric stapedotomy at the audiometry center. Method of measurement: Audiometry and questionnaire.</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>2022-03-19</approval_date>
        <contact_name>Research Ethics Committees of Amir A'lam Hospital Complex</contact_name>
        <contact_address>Amir A'lam hospital, North Sa'di Ave , Darvaze Dolat tehran Tehran Iran (Islamic Republic of)</contact_address>
        <contact_phone></contact_phone>
        <contact_email></contact_email>
      </ethics_review>
    </ethics_reviews>
  </trial>
</trials>
