<?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>IRCT20120215009014N339</trial_id>
      <utrn></utrn>
      <reg_name>IRCT</reg_name>
      <date_registration>2020-02-07</date_registration>
      <primary_sponsor>Hamedan University of Medical Sciences</primary_sponsor>
      <public_title>Effect of co-enzyme Q10 versus placebo on treatment of tinnitus due to presbycusis</public_title>
      <acronym></acronym>
      <scientific_title>Effect of co-enzyme Q10 versus placebo on treatment of tinnitus due to presbycusis: a triple-blind randomized clinical trial</scientific_title>
      <scientific_acronym></scientific_acronym>
      <date_enrolment>2019-09-23</date_enrolment>
      <type_enrolment>anticipated</type_enrolment>
      <target_size>50</target_size>
      <recruitment_status>Complete</recruitment_status>
      <url>https://irct.ir/trial/45558</url>
      <study_type>interventional</study_type>
      <study_design>Randomization: Randomized, Blinding: Triple blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: Random assignment of the patients to the intervention and control groups through the drawing of lots. To do this, we prepare two sheets and write "intervention" on one sheet and "control" on another. Then, by referring each patient, one of the sheets will be randomly taken and the patient will be assigned to the intervention or, Blinding description: The drugs will be given in coded envelopes. The shape of the medications and placebos will be perfectly the same. Therefore, patients will be unaware of the type of intervention. The physician who will examine the patients will not be aware of the intervention. The analyzer will be unaware of the type of interventions Thus, the trial will be run as triple-blind.</study_design>
      <phase>2</phase>
      <hc_freetext>Tinnitus.</hc_freetext>
      <i_freetext>Intervention 1: Intervention group: Neurotriptyline tablet 25 mg (manufactured by Darupakhsh Pharmaceutical Co.) daily plus co-enzyme Q10 tablet 100 mg (manufactured by Health Aid Co.) daily for 6 weeks. Intervention 2: Control group: Neurotriptyline tablet 25 mg (manufactured by Darupakhsh Pharmaceutical Co.) daily plus placebo tablet 100 mg daily for 6 weeks.</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 It depends on the situations and the results of the study as well as the approval of the financial supporting organization.</results_IPD_description>
    </main>
    <contacts>
      <contact>
        <type>public</type>
        <firstname>Dr Zahra Sadeghi</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>School of Medicine, Hamadan University of Medical Sciences, Shahid Fahmideh Ave.</address>
        <city>Hamadan</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>6517838695</zip>
        <telephone>+98 81 3838 0572</telephone>
        <email>sazcsaz66@gmail.com</email>
        <affiliation>Hamedan University of Medical Sciences</affiliation>
      </contact>
      <contact>
        <type>scientific</type>
        <firstname>Dr. Rooholah Abbasi</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>School of Medicine, Hamadan University of Medical Sciences, Shahid Fahmideh Ave.</address>
        <city>Hamadan</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>6517838695</zip>
        <telephone>+98 81 3838 0572</telephone>
        <email>Ruholah@abasihatmil.com</email>
        <affiliation>Hamedan University of Medical Sciences</affiliation>
      </contact>
    </contacts>
    <countries>
      <country2>Iran (Islamic Republic of)</country2>
    </countries>
    <criteria>
      <inclusion_criteria>Age of 50 to 90 years,
Tinnitus for over a year,
Bilateral neural sensorineural hearing loss</inclusion_criteria>
      <agemin>50 years</agemin>
      <agemax>90 years</agemax>
      <gender>Both</gender>
      <exclusion_criteria>Psychosomatic disorder,
Consumption of calcium, vitamin and magnesium in the past two months,
Tinnitus due to drug side effects,
Atypical tinnitus,
Meniere's disease,
Conductive hearing loss</exclusion_criteria>
    </criteria>
    <health_condition_code>
      <hc_code>H93.1</hc_code>
    </health_condition_code>
    <health_condition_keyword>
      <hc_keyword>Tinnitus</hc_keyword>
    </health_condition_keyword>
    <intervention_code>
      <i_code>Treatment - Drugs</i_code>
      <i_code>Placebo</i_code>
    </intervention_code>
    <intervention_keyword>
      <i_keyword>Intervention group: Neurotriptyline tablet 25 mg (manufactured by Darupakhsh Pharmaceutical Co.) daily plus co-enzyme Q10 tablet 100 mg (manufactured by Health Aid Co.) daily for 6 weeks</i_keyword>
      <i_keyword>Control group: Neurotriptyline tablet 25 mg (manufactured by Darupakhsh Pharmaceutical Co.) daily plus placebo tablet 100 mg daily for 6 weeks</i_keyword>
    </intervention_keyword>
    <primary_outcome>
      <prim_outcome>Severity of tinnitus. Timepoint: Before the intervention and 6 months later. Method of measurement: Using the Tinnitus Handicap Inventory (THI).</prim_outcome>
      <prim_outcome>Sleep disorder. Timepoint: Before the intervention and 6 months later. Method of measurement: Using the Petersburg questionnaire.</prim_outcome>
      <prim_outcome>Quality of life. Timepoint: Before the intervention and 6 months later. Method of measurement: Using the SF-36 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>Hamedan University of Medical Sciences</source_name>
    </source_support>
    <ethics_reviews>
      <ethics_review>
        <status>Approved</status>
        <approval_date>2019-07-06</approval_date>
        <contact_name>Ethics Committee of Hamadan University of Medical Sciences</contact_name>
        <contact_address>Vice-chancellor for Research and Technology, Hamadan University of Medical Sciences, Shahid Fahmideh Ave Hamadan Hamadan Iran (Islamic Republic of)</contact_address>
        <contact_phone></contact_phone>
        <contact_email></contact_email>
      </ethics_review>
    </ethics_reviews>
  </trial>
</trials>
