<?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>IRCT201510251598N3</trial_id>
      <utrn></utrn>
      <reg_name>IRCT</reg_name>
      <date_registration>2016-02-16</date_registration>
      <primary_sponsor>Isfahan Kidney Diseases Research Center, Isfahan University of Medical Sciences</primary_sponsor>
      <public_title>Comparing effect of tizanidine hydrochloride vs. placebo on muscle cramp in hemodialysis patients</public_title>
      <acronym></acronym>
      <scientific_title>Comparing effect of tizanidine hydrochloride vs. placebo on muscle cramp in hemodialysis patients in</scientific_title>
      <scientific_acronym></scientific_acronym>
      <date_enrolment>2010-03-20</date_enrolment>
      <type_enrolment>anticipated</type_enrolment>
      <target_size>20</target_size>
      <recruitment_status>Complete</recruitment_status>
      <url>https://irct.ir/trial/1009</url>
      <study_type>interventional</study_type>
      <study_design>Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Crossover, Purpose: Prevention.</study_design>
      <phase>3</phase>
      <hc_freetext>muscle cramp in hemodialysis patients.</hc_freetext>
      <i_freetext>Intervention 1: Group A at first receives tizanidine hydrochloride for one month and after 3 days washout period receives placebo for another month.&#13;
Serum Na, K, calcium, phosphate, albumin, and complete blood cell count are measured before each phase of study. Patients’ systolic and diastolic blood pressure and pulse rate are monitored at the time of drug or placebo administration and at the start of each hemodialysis session and then hourly till the end of hemodialysis and at the start of each muscle cramp episode.&#13;
The number of muscle cramps in each hemodialysis session are recorded by responsible hemodialysis nurse.&#13;
At the start of each muscle cramp episode duration and intensity of muscle cramp is measured by corresponding hemodialysis nurse. Intensity of muscle cramp is measured by visual analog scale from zero to ten specified by patients on the questionnaire. After starting muscle cramp the patients will be treated by hypertonic saline to abort the muscle cramp. Intervention 2: Group B at first receives placebo for one month and after 3 days washout period receives tizanidine hydrochloride for another month. Serum Na, K, calcium, phosphate, albumin, and complete blood cell count are measured before each phase of study. Patients’ systolic and diastolic blood pressure and pulse rate are monitored at the time of drug or placebo administration and at the start of each hemodialysis session and then hourly till the end of hemodialysis and at the start of each muscle cramp episode. The number of muscle cramps in each hemodialysis session are recorded by responsible hemodialysis nurse. At the start of each muscle cramp episode duration and intensity of muscle cramp is measured by corresponding hemodialysis nurse. Intensity of muscle cramp is measured by visual analog scale from zero to ten specified by patients on the questionnaire. After starting muscle cramp the patients will be treated by hypertonic saline to abort the muscle cramp.</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></results_IPD_plan>
      <results_IPD_description></results_IPD_description>
    </main>
    <contacts>
      <contact>
        <type>public</type>
        <firstname>Dr. Shahram Taheri</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>Isfahan Kidney Diseases Research Center, Alzahra Hospital- Soffeh Ave.</address>
        <city>Isfahan</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip></zip>
        <telephone>+98 32 3625 5555</telephone>
        <email>sh_taheri@med.mui.ac.ir, shah63tah@yahoo.com</email>
        <affiliation>Isfahan Kidney Diseases Research Center, Isfahan University of Medical Sciences</affiliation>
      </contact>
      <contact>
        <type>scientific</type>
        <firstname>Dr. Shahram Taheri</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>Isfahan Kidney Diseases Research Center, Alzahra Hospital, Soffeh Ave.</address>
        <city>Isfahan</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip></zip>
        <telephone>+98 31 3625 5555</telephone>
        <email>sh_taheri@med.mui.ac.ir, shah63tah@yahoo.com</email>
        <affiliation>Isfahan Kidney Diseases Research Center, Isfahan University of Medical Sciences</affiliation>
      </contact>
    </contacts>
    <countries>
      <country2>Iran (Islamic Republic of)</country2>
      <country2>Iran (Islamic Republic of)</country2>
      <country2>Iran (Islamic Republic of)</country2>
      <country2>Iran (Islamic Republic of)</country2>
    </countries>
    <criteria>
      <inclusion_criteria>Inclusion criteria: &#13;
At least 18 year old; give informed consent to participate in the 2 month clinical trial; at least has once weekly muscle cramp episode during previous month;  stable hemodialysis patients and no hypotension during muscle cramp episode (Systolic BP≥90 mmHg); chronic hemodialysis patients for at least 3 months; serum calcium level≥ 8.3 mg/dL;&#13;
serum sodium level≥ 135 mEq/L&#13;
Exclusion criteria: &#13;
side effect appearing to tizanidine; any time patient wishes to exit from the study.</inclusion_criteria>
      <agemin>18 years</agemin>
      <agemax>99 years</agemax>
      <gender>Both</gender>
      <exclusion_criteria></exclusion_criteria>
    </criteria>
    <health_condition_code>
      <hc_code>R25.2,Z49.</hc_code>
    </health_condition_code>
    <health_condition_keyword>
      <hc_keyword>Cramp and spasm,Extracorporeal dialysis</hc_keyword>
    </health_condition_keyword>
    <intervention_code>
      <i_code>Prevention</i_code>
      <i_code>Prevention</i_code>
    </intervention_code>
    <intervention_keyword>
      <i_keyword>Group A at first receives tizanidine hydrochloride for one month and after 3 days washout period receives placebo for another month.&#13;
Serum Na, K, calcium, phosphate, albumin, and complete blood cell count are measured before each phase of study. Patients’ systolic and diastolic blood pressure and pulse rate are monitored at the time of drug or placebo administration and at the start of each hemodialysis session and then hourly till the end of hemodialysis and at the start of each muscle cramp episode.&#13;
The number of muscle cramps in each hemodialysis session are recorded by responsible hemodialysis nurse.&#13;
At the start of each muscle cramp episode duration and intensity of muscle cramp is measured by corresponding hemodialysis nurse. Intensity of muscle cramp is measured by visual analog scale from zero to ten specified by patients on the questionnaire. After starting muscle cramp the patients will be treated by hypertonic saline to abort the muscle cramp.</i_keyword>
      <i_keyword>Group B at first receives placebo for one month and after 3 days washout period receives tizanidine hydrochloride for another month. Serum Na, K, calcium, phosphate, albumin, and complete blood cell count are measured before each phase of study. Patients’ systolic and diastolic blood pressure and pulse rate are monitored at the time of drug or placebo administration and at the start of each hemodialysis session and then hourly till the end of hemodialysis and at the start of each muscle cramp episode. The number of muscle cramps in each hemodialysis session are recorded by responsible hemodialysis nurse. At the start of each muscle cramp episode duration and intensity of muscle cramp is measured by corresponding hemodialysis nurse. Intensity of muscle cramp is measured by visual analog scale from zero to ten specified by patients on the questionnaire. After starting muscle cramp the patients will be treated by hypertonic saline to abort the muscle cramp.</i_keyword>
    </intervention_keyword>
    <primary_outcome>
      <prim_outcome>Muscle cramp frequency. Timepoint: During hemodialysis session. Method of measurement: Observation by responsible hemodialysis nurse.</prim_outcome>
      <prim_outcome>Muscle cramp intensity. Timepoint: During hemodialysis session. Method of measurement: Visual analog scale.</prim_outcome>
      <prim_outcome>Muscle cramp duration (second). Timepoint: During hemodialysis session. Method of measurement: Measuring by responsible nurse.</prim_outcome>
    </primary_outcome>
    <secondary_outcome>
      <sec_outcome>Systolic and diastolic blood pressure. Timepoint: At the time of tizanidine hydrochloride or placebo prescription and then at the start of hemodialysis session and hourly during hemodialysis and at the start of each muscle cramp episode. Method of measurement: Sphigmomanometer by responsible nurse.</sec_outcome>
      <sec_outcome>Pulse rate (beats per minute). Timepoint: At the time of tizanidine hydrochloride or placebo prescription and then at the start of hemodialysis session and hourly during hemodialysis and at the start of each muscle cramp episode. Method of measurement: watch, by responsible nurse.</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>Isfahan Kidney Diseases Research Center, Isfahan University of Medical Sciences</source_name>
    </source_support>
    <ethics_reviews>
      <ethics_review>
        <status>Approved</status>
        <approval_date>2009-11-03</approval_date>
        <contact_name>Medical research ethics committee at the Isfahan University of Medical Sciences</contact_name>
        <contact_address>Research vice president of Isfahan University of Medical Sciences , Building 4, Hezar Jerib St. Isfahan  Iran (Islamic Republic of)</contact_address>
        <contact_phone></contact_phone>
        <contact_email></contact_email>
      </ethics_review>
    </ethics_reviews>
  </trial>
</trials>
