<?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>IRCT20220104053626N2</trial_id>
      <utrn></utrn>
      <reg_name>IRCT</reg_name>
      <date_registration>2022-02-13</date_registration>
      <primary_sponsor>Tabriz University of Medical Sciences</primary_sponsor>
      <public_title>comparison of the melatonin effect in irritable bowel syndrome patients</public_title>
      <acronym>IBS</acronym>
      <scientific_title>Determination of the melatonin effect on gastrointestinal symptoms and quality of life in patients with irritable bowel syndrome with and without sleep disorders</scientific_title>
      <scientific_acronym></scientific_acronym>
      <date_enrolment>2022-01-20</date_enrolment>
      <type_enrolment>anticipated</type_enrolment>
      <target_size>136</target_size>
      <recruitment_status>Complete</recruitment_status>
      <url>https://irct.ir/trial/61174</url>
      <study_type>interventional</study_type>
      <study_design>Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Supportive, Randomization description: Among the patients who volunteered to participate in the study, 136 people will be selected by simple random sampling.
Randomization method: block
Randomization unit: individual
Random layers: In each block, people will be matched based on age and gender.
Random allocation tool: Random allocation software
How to build a random sequence: Using Random allocation software
Concealment: A random sequence created in a safe place and performed by an independent person not involved in the trial during the study. Random allocation of hidden individuals, patients and researchers will not be aware of it, Blinding description: This study is a double-blind study in which the researcher of this study and the patients participating in the study will be unaware of the type of supplement received. The supplements will be provided to patients by another person who has no role in completing the questionnaire. They will also be informed of the existence of two types of supplements (melatonin and placebo) when obtaining consent, but will be unaware of which study groups they will be in. Placebo tablets are similar in appearance, color, and size to melatonin tablets.</study_design>
      <phase>2-3</phase>
      <hc_freetext>Irritable Bowel Syndrome.</hc_freetext>
      <i_freetext>Intervention 1: Intervention group: Melatonin. Patients in the intervention group who will  take two melatonin 3 mg tablets daily (manufactured by Zahravi Pharmaceutical Company) for two months during the study. Intervention 2: Control group: Control group: placebo. Patients in the placebo group who will take  two placebo tablets daily (manufactured by Zahravi Pharmaceutical Company) during two months of study.</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>Masood Dinevari</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>Emam reza hospital, Gogash st, Tabriz</address>
        <city>Tabriz</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>5165665931</zip>
        <telephone>+98 41 3334 2500</telephone>
        <email>masood.dinevari@gmail.com</email>
        <affiliation>Tabriz University of Medical Sciences</affiliation>
      </contact>
      <contact>
        <type>scientific</type>
        <firstname>Masood dinevari</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>Emamreza hospital, Golgasht st, Tabriz</address>
        <city>Tabriz</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>5165665931</zip>
        <telephone>+98 41 3334 2669</telephone>
        <email>masood.dinevari@gmail.com</email>
        <affiliation>Tabriz University of Medical Sciences</affiliation>
      </contact>
    </contacts>
    <countries>
      <country2>Iran (Islamic Republic of)</country2>
    </countries>
    <criteria>
      <inclusion_criteria>being satisfied to participate in the study
Patients with definitive diagnosis of IBS based on ROME 4 questionnaire, with sleep disorders diagnosed based on PSQI questionnaire.
Patients with definitive diagnosis of IBS based on ROME 4 questionnaire, without sleep disorders</inclusion_criteria>
      <agemin>no limit</agemin>
      <agemax>no limit</agemax>
      <gender>Both</gender>
      <exclusion_criteria>Previous history of diagnosed gastrointestinal diseases including IBD
Intestinal surgery
Depression
Receive herbal medicines</exclusion_criteria>
    </criteria>
    <health_condition_code>
      <hc_code>K58</hc_code>
    </health_condition_code>
    <health_condition_keyword>
      <hc_keyword>Irritable bowel syndrome</hc_keyword>
    </health_condition_keyword>
    <intervention_code>
      <i_code>Treatment - Other</i_code>
      <i_code>Placebo</i_code>
    </intervention_code>
    <intervention_keyword>
      <i_keyword>Intervention group: Melatonin. Patients in the intervention group who will  take two melatonin 3 mg tablets daily (manufactured by Zahravi Pharmaceutical Company) for two months during the study.</i_keyword>
      <i_keyword>Control group: Control group: placebo. Patients in the placebo group who will take  two placebo tablets daily (manufactured by Zahravi Pharmaceutical Company) during two months of study.</i_keyword>
    </intervention_keyword>
    <primary_outcome>
      <prim_outcome>Abdominal pain severity based on a questionnaire on a percentage scale,From zero with an increase of 25 units. Timepoint: Before and after the intervention. Method of measurement: Irritable Bowel Syndrome Symptoms Severity Questionnaire.</prim_outcome>
      <prim_outcome>Quality of life based on the quality of life questionnaire for patients with irritable bowel syndrome. Timepoint: Before and after the intervention. Method of measurement: the quality of life questionnaire for patients with irritable bowel syndrome.</prim_outcome>
      <prim_outcome>Intensity of bloating based on a questionnaire as a percentage scale,From zero with an increase of 25 units. Timepoint: Before and after the intervention. Method of measurement: Irritable Bowel Syndrome Symptoms Severity Questionnaire.</prim_outcome>
      <prim_outcome>Stool form. Timepoint: Before and after the intervention. Method of measurement: Irritable Bowel Syndrome Symptoms Severity 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>Tabriz University of Medical Sciences</source_name>
    </source_support>
    <ethics_reviews>
      <ethics_review>
        <status>Approved</status>
        <approval_date>2021-08-01</approval_date>
        <contact_name>Ethics Committee of Tabriz University of Medical Sciences</contact_name>
        <contact_address>Tabriz University of Medical Sciences, Daneshgah St, Golgasht St. Tabriz East Azarbaijan Iran (Islamic Republic of)</contact_address>
        <contact_phone></contact_phone>
        <contact_email></contact_email>
      </ethics_review>
    </ethics_reviews>
  </trial>
</trials>
