<?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>IRCT20201021049093N1</trial_id>
      <utrn></utrn>
      <reg_name>IRCT</reg_name>
      <date_registration>2020-11-04</date_registration>
      <primary_sponsor>Tehran University of Medical Sciences</primary_sponsor>
      <public_title>Effects of ear surgery on Tinnitus</public_title>
      <acronym></acronym>
      <scientific_title>Effects of Stapedotomy on Tinnitus in Patients with Otosclerosis</scientific_title>
      <scientific_acronym></scientific_acronym>
      <date_enrolment>2020-10-13</date_enrolment>
      <type_enrolment>anticipated</type_enrolment>
      <target_size>19</target_size>
      <recruitment_status>Complete</recruitment_status>
      <url>https://irct.ir/trial/51897</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>Otosclerosis.</hc_freetext>
      <i_freetext>Intervention group: Patients with conductive hearing loss with more than 30 dB air-bone gap and concomitant tinnitus will undergo Stapedotomy surgery to resolve the ossicular chain stiffness following otosclerosis. The surgery would be done under general anesthesia or sedation through an intracanal incision. A hole would be drilled in the stapedius footplate and a Teflon piston prosthesis would be inserted in place..</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>Yes - There is a plan to make this available</results_IPD_plan>
      <results_IPD_description>What will be shared:
All data can be published after deleting the recongnition data.

When:
from 2020

To whom:
researchers of academic institutes

Conditions:
To be used in meta-analysis

Where to obtain:
Otorhinolaryngology research center of Tehran university of medical sciences

How to obtain:
An email must be sent to the research corresponding author.

Comments:
</results_IPD_description>
    </main>
    <contacts>
      <contact>
        <type>public</type>
        <firstname>Mehrdad Jafari</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>Baqerkhan</address>
        <city>Tehran</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>1419733141</zip>
        <telephone>+98 21 6658 1628</telephone>
        <email>mehrdadj82@yahoo.com</email>
        <affiliation>Tehran University of Medical Sciences</affiliation>
      </contact>
      <contact>
        <type>scientific</type>
        <firstname>Mehrdad Jafari</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>Baqerkhan</address>
        <city>Tehran</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>14197363141</zip>
        <telephone>+98 21 6658 1628</telephone>
        <email>mehrdadj82@yahoo.com</email>
        <affiliation>Tehran University of Medical Sciences</affiliation>
      </contact>
    </contacts>
    <countries>
      <country2>Iran (Islamic Republic of)</country2>
    </countries>
    <criteria>
      <inclusion_criteria>Otosclerosis with more than 30 dB of air-bone gap in pure tone audiometry
Tinnitus in the same ear</inclusion_criteria>
      <agemin>18 years</agemin>
      <agemax>60 years</agemax>
      <gender>Both</gender>
      <exclusion_criteria>Previous surgery in the same ear
Superior semicircular canal dehiscence
Meniere's Disease</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>
    </intervention_code>
    <intervention_keyword>
      <i_keyword>Intervention group: Patients with conductive hearing loss with more than 30 dB air-bone gap and concomitant tinnitus will undergo Stapedotomy surgery to resolve the ossicular chain stiffness following otosclerosis. The surgery would be done under general anesthesia or sedation through an intracanal incision. A hole would be drilled in the stapedius footplate and a Teflon piston prosthesis would be inserted in place.</i_keyword>
    </intervention_keyword>
    <primary_outcome>
      <prim_outcome>Tinnitus score. Timepoint: Before and 6 months after intervention. Method of measurement: Visual analogue scale.</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>2020-10-12</approval_date>
        <contact_name>Tehran University of Medical Sciences</contact_name>
        <contact_address>Baqerkhan Tehran Tehran Iran (Islamic Republic of)</contact_address>
        <contact_phone></contact_phone>
        <contact_email></contact_email>
      </ethics_review>
    </ethics_reviews>
  </trial>
</trials>
