<?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>IRCT20231127060204N1</trial_id>
      <utrn></utrn>
      <reg_name>IRCT</reg_name>
      <date_registration>2024-05-07</date_registration>
      <primary_sponsor>Tehran University of Medical Sciences</primary_sponsor>
      <public_title>Investigating the effect of lumbosacral spine fusion in the occurrence of sacroiliac joint syndrome (SIJS) after lumbar surgery.</public_title>
      <acronym></acronym>
      <scientific_title>Comparison of the incidence of chronic sacroiliac joint pain (SIJP) following lumbar surgeries with and without lumbosacral spine fusion in spinal stenosis patients with low-grade lumbar degenerative spondylolisthesis using a non-randomized clinical trial study method.</scientific_title>
      <scientific_acronym></scientific_acronym>
      <date_enrolment>2024-05-04</date_enrolment>
      <type_enrolment>anticipated</type_enrolment>
      <target_size>106</target_size>
      <recruitment_status>Complete</recruitment_status>
      <url>https://irct.ir/trial/74218</url>
      <study_type>interventional</study_type>
      <study_design>Randomization: Not randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment.</study_design>
      <phase>N/A</phase>
      <hc_freetext>Condition 1: sacroiliac joint pain. Condition 2: Spondylosis, arthrosis or osteoarthritis of spine, degeneration of facet joints. Condition 3: Spondylolisthesis. Condition 4: spondylosis with myelopathy. Condition 5: spondylosis with radiculopathy. Condition 6: Other spondylosis. Condition 7: Spondylosis, unspecified. Condition 8: Spinal stenosis. Condition 9: Spondylopathy, unspecified.</hc_freetext>
      <i_freetext>Intervention 1: The first intervention group: lumbosacral spine surgery with fusion.Patients undergo surgery in one of two ways. Decompression group without fusion and decompression group plus fusion (instrumental using screw and titanium rod). In the first intervention group, patients diagnosed with low-grade lumbar spondylolisthesis with lumbar stenosis and neurogenic lameness with or without lumbar radiculopathy and lumbar instability in flexion-extension radiography of the lumbar spine (movement of more than 3 to 14 mm at the level of listhesis) are included. Decompression and fusion surgery group. In all fusion patients, autogenous bone graft with the origin of lamina and spinous process was used. After surgery, patients enter the follow-up phase for three months and are monitored after one month and three months in terms of the occurrence of new back pain that is different from preoperative pain that is consistent with the criteria of sacroiliac joint syndrome (SIJS). And if SIJS occurs and is confirmed, they enter the next intervention phase (anesthetic block of the SIJ joint). Intervention 2: The second intervention group: lumbosacral spine decompression surgery without fusion.Patients undergo surgery in one of two ways. Decompression group without fusion and decompression group plus fusion (instrumental using screw and titanium rod). In the second intervention group, patients diagnosed with low-grade lumbar spondylolisthesis with lumbar stenosis and neurogenic lameness with or without lumbar radiculopathy without lumbar instability in flexion-extension radiography of the lumbar spine (movement less than 3 mm at the level of listhesis) are included in the surgical group. Decompression without fusion. After surgery, these patients enter the follow-up phase for three months and are monitored after one month and three months in terms of the occurrence of new back pain that is different from preoperative pain that is consistent with the criteria of sacroiliac joint syndrome (SIJS). and if SIJS occurs and is confirmed, they enter the next intervention phase (anesthetic block of the SIJ joint). Intervention 3: The third intervention group: Sacroiliac joint anesthetic block in lumbosacral spine surgery patients with fusion who have sacroiliac joint syndrome after surgery.After surgery, patients in the intervention groups of decompression with fusion and decompression without fusion enter the follow-up phase for three months. In the third intervention group, at each stage of follow-up (first and third month after surgery), each of the patients of the first and second intervention groups who have persistent back pain and new point tenderness whose pain is unilateral (or with unilateral spread) ; with diffusion topography consistent with sacroiliac origin, without diffusion below the knee, sacroiliac groove tenderness to palpation; positive at least 3 sacroiliac joint provocative examinations (thigh thrust, FABER, compression, Gaenslen's, distraction) and the absence of lumbar causality evidence (especially the absence of destruction of the adjacent disc in MRI and the absence of pseudarthrosis) with the diagnosis of sacroiliac joint syndrome (SIJS) ) enter the next intervention phase and are placed under the SIJ block. At each stage, the outcome is measured based on ODI and SF-36 criteria in the stage before injection and block and VAS criteria after injection.The criteria for positive provocative maneuvers to diagnose SIJ as the main source of pain includes the possibility of reproducing the patient's typical pain in the SIJ region; A positive test as a possible case and a positive 3 or more tests as a very likely case of SIJS is considered as a pain generator.In the detailed description of the intervention to perform the block, the skin over the sacroiliac joint is anesthetized with 1% lidocaine using a short needle. Carefully avoiding anesthetizing the periarticular ligaments, a 20-gauge 50mm needle is inserted into the lower part of the joint. One milliliter of non-ionic contrast material is injected to confirm the placement of the needle inside the joint, and then the joint is anesthetized with 2.5 milliliters of lidocaine 2% + 1 milliliter of triamcinolone + 1.5 milliliters of distilled water (5 milliliters in total). The amount of pain before the block was based on the VAS scale with the question "How much was your average pain this morning?" It was measured and measured again 15 minutes after the block and after 5 minutes of walking and sitting. The criteria for a positive block will include accurate injection of contrast inside the joint, as well as pain relief of the patient up to 75%. A positive block will be considered to confirm the diagnosis of sacroiliac syndrome.</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:
Individual data of study participants including total data after de-identification of individuals

When:
The access period starts from February 2024

To whom:
Researchers working in academic and scientific institutions

Conditions:
The user of the clinical reports of this study should:
1- Do not use the results of this study for non-research or commercial purposes.
2- To ensure that the use of this clinical study report always complies with applicable laws.
3- Don't misrepresent the source of clinical reports from this study.
4- Do not seek to re-identify the trial subjects or other people from the clinical reports of this study in violation of privacy laws.

The user of the clinical reports of this study should not:
1- Use the clinical reports of this study to support an application for marketing authorization and any extension or modification of a product anywhere in the world.
2- Do not share the available information or the results of the data analysis of this study with any third party.
3- Any commercial and non-medical research use of the clinical reports of this study is against the consent of the researcher of this study and violates the privacy of the study participants and will be prosecuted.

Where to obtain:
Mailbox: Toufighmj@gmail.com
Telegram: @toufighmj
Cell:  00989143118540
Toufigh Muhaddes Javadi

How to obtain:
1- Authentication as a medical researcher
2- Introducing a study that needs to use the reports of this study.
3- Send an e-mail request with the above documents, stating the reasons for the need for access and agreeing to comply with all the conditions listed in the conditions and objectives section of the subscription and using the results of this study in other clinical and research studies.

Comments:
</results_IPD_description>
    </main>
    <contacts>
      <contact>
        <type>public</type>
        <firstname>Toufigh Mohaddes Javadi</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>No.10, 8th Alley, North Mosaddegh St, Mirdamad Blvd, postal code 1918885553</address>
        <city>Tehran</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>1918885553</zip>
        <telephone>+98 21 2222 1875</telephone>
        <email>toufighmj@gmail.com</email>
        <affiliation>Tehran University of Medical Sciences</affiliation>
      </contact>
      <contact>
        <type>scientific</type>
        <firstname>Toufigh Mohaddes Javadi</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>No.10, 8th Alley, North Mosaddegh St, Mirdamad Blvd, postal code 1918885553</address>
        <city>Tehran</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>1918885553</zip>
        <telephone>+98 21 2222 1875</telephone>
        <email>toufighmj@gmail.com</email>
        <affiliation>Tehran University of Medical Sciences</affiliation>
      </contact>
    </contacts>
    <countries>
      <country2>Iran (Islamic Republic of)</country2>
      <country2>Iran (Islamic Republic of)</country2>
    </countries>
    <criteria>
      <inclusion_criteria>Obtaining written informed consent from the patient to participate in the study
Age over 18 years
Age below 75 years
Patients suffering from lumbar spinal canal stenosis along with low grade degenerative spondylolisthesis of the lumbar spine which has been examined by clinical examinations and imaging methods and their disease has been confirmed by a neurosurgeon and spine specialist and a radiologist
Ineffectiveness of non-surgical conservative methods in controlling the patient's symptoms and pain and disability
No history of lumbar spine surgery
Presence of a clear indication for decompression with or without fusion in the patient
Having Iranian citizenship
It is possible to follow up the patient and be available to participate in routine follow-up sessions</inclusion_criteria>
      <agemin>18 years</agemin>
      <agemax>75 years</agemax>
      <gender>Both</gender>
      <exclusion_criteria>Vertebral fracture
tumoral or metastatic lesions of vertebrae
Infection in the lumbosacral spine
Inflammatory spondylopathy
Presence of SIJ disease
Patients who have already undergone lumbosacral spine surgery, including revision cases
Interior fusion indication (insertion of interbody cage)
Chronic pain problems, such as Fibromyalgia and other Rheumatological diseases, chronic pain associated with inflammation or irritation of the muscle or fascia around the muscle
Suspicion of Osteoporosis based on simple lumbosacral radiography (Bone Densitometry is performed to prove the disease in suspected cases)
People who have Scoliosis with a Cobb angle of more than 25 degrees
Sagittal Imbalance with (Sagittal Vertical Axis - SVA) more than 9 cm
Presence of Hip flexion contracture based on examination with Thomas test
Simultaneous surgical indication of lumbar canal stenosis and cervical canal stenosis
Pregnant women
Presence of contraindications for MRI
The patient's unwillingness to participate in the study despite explaining the benefits of the plan and the efforts of the study team to attract their participation
People who are unable to communicate in order to answer study questions, such as Deaf, Blind, Speech problems
People suffering from Mental and Psychological disorders, Mental retardation and any Psychiatric disease in the acute stage such as Psychosis, who have not been treated and are unable to cooperate
Sciatica pain radiating below the knee, work injury, litigation</exclusion_criteria>
    </criteria>
    <health_condition_code>
      <hc_code>M46.1</hc_code>
      <hc_code>M47</hc_code>
      <hc_code>S33.1</hc_code>
      <hc_code>M47.1</hc_code>
      <hc_code>M47.2</hc_code>
      <hc_code>M47.8</hc_code>
      <hc_code>M47.9</hc_code>
      <hc_code>M48.0</hc_code>
      <hc_code>M48.9</hc_code>
    </health_condition_code>
    <health_condition_keyword>
      <hc_keyword>Sacroiliitis, not elsewhere classified</hc_keyword>
      <hc_keyword>Spondylosis</hc_keyword>
      <hc_keyword>Subluxation and dislocation of lumbar vertebra</hc_keyword>
      <hc_keyword>Other spondylosis with myelopathy</hc_keyword>
      <hc_keyword>Other spondylosis with radiculopathy</hc_keyword>
      <hc_keyword>Other spondylosis</hc_keyword>
      <hc_keyword>Spondylosis, unspecified</hc_keyword>
      <hc_keyword>Spinal stenosis</hc_keyword>
      <hc_keyword>Spondylopathy, unspecified</hc_keyword>
    </health_condition_keyword>
    <intervention_code>
      <i_code>Treatment - Surgery</i_code>
      <i_code>Treatment - Surgery</i_code>
      <i_code>Diagnosis</i_code>
    </intervention_code>
    <intervention_keyword>
      <i_keyword>The first intervention group: lumbosacral spine surgery with fusion.Patients undergo surgery in one of two ways. Decompression group without fusion and decompression group plus fusion (instrumental using screw and titanium rod). In the first intervention group, patients diagnosed with low-grade lumbar spondylolisthesis with lumbar stenosis and neurogenic lameness with or without lumbar radiculopathy and lumbar instability in flexion-extension radiography of the lumbar spine (movement of more than 3 to 14 mm at the level of listhesis) are included. Decompression and fusion surgery group. In all fusion patients, autogenous bone graft with the origin of lamina and spinous process was used. After surgery, patients enter the follow-up phase for three months and are monitored after one month and three months in terms of the occurrence of new back pain that is different from preoperative pain that is consistent with the criteria of sacroiliac joint syndrome (SIJS). And if SIJS occurs and is confirmed, they enter the next intervention phase (anesthetic block of the SIJ joint).</i_keyword>
      <i_keyword>The second intervention group: lumbosacral spine decompression surgery without fusion.Patients undergo surgery in one of two ways. Decompression group without fusion and decompression group plus fusion (instrumental using screw and titanium rod). In the second intervention group, patients diagnosed with low-grade lumbar spondylolisthesis with lumbar stenosis and neurogenic lameness with or without lumbar radiculopathy without lumbar instability in flexion-extension radiography of the lumbar spine (movement less than 3 mm at the level of listhesis) are included in the surgical group. Decompression without fusion. After surgery, these patients enter the follow-up phase for three months and are monitored after one month and three months in terms of the occurrence of new back pain that is different from preoperative pain that is consistent with the criteria of sacroiliac joint syndrome (SIJS). and if SIJS occurs and is confirmed, they enter the next intervention phase (anesthetic block of the SIJ joint).</i_keyword>
      <i_keyword>The third intervention group: Sacroiliac joint anesthetic block in lumbosacral spine surgery patients with fusion who have sacroiliac joint syndrome after surgery.After surgery, patients in the intervention groups of decompression with fusion and decompression without fusion enter the follow-up phase for three months. In the third intervention group, at each stage of follow-up (first and third month after surgery), each of the patients of the first and second intervention groups who have persistent back pain and new point tenderness whose pain is unilateral (or with unilateral spread) ; with diffusion topography consistent with sacroiliac origin, without diffusion below the knee, sacroiliac groove tenderness to palpation; positive at least 3 sacroiliac joint provocative examinations (thigh thrust, FABER, compression, Gaenslen's, distraction) and the absence of lumbar causality evidence (especially the absence of destruction of the adjacent disc in MRI and the absence of pseudarthrosis) with the diagnosis of sacroiliac joint syndrome (SIJS) ) enter the next intervention phase and are placed under the SIJ block. At each stage, the outcome is measured based on ODI and SF-36 criteria in the stage before injection and block and VAS criteria after injection.The criteria for positive provocative maneuvers to diagnose SIJ as the main source of pain includes the possibility of reproducing the patient's typical pain in the SIJ region; A positive test as a possible case and a positive 3 or more tests as a very likely case of SIJS is considered as a pain generator.In the detailed description of the intervention to perform the block, the skin over the sacroiliac joint is anesthetized with 1% lidocaine using a short needle. Carefully avoiding anesthetizing the periarticular ligaments, a 20-gauge 50mm needle is inserted into the lower part of the joint. One milliliter of non-ionic contrast material is injected to confirm the placement of the needle inside the joint, and then the joint is anesthetized with 2.5 milliliters of lidocaine 2% + 1 milliliter of triamcinolone + 1.5 milliliters of distilled water (5 milliliters in total). The amount of pain before the block was based on the VAS scale with the question "How much was your average pain this morning?" It was measured and measured again 15 minutes after the block and after 5 minutes of walking and sitting. The criteria for a positive block will include accurate injection of contrast inside the joint, as well as pain relief of the patient up to 75%. A positive block will be considered to confirm the diagnosis of sacroiliac syndrome.</i_keyword>
    </intervention_keyword>
    <primary_outcome>
      <prim_outcome>Change in SF-36 Quality of life index summary score. Timepoint: One month and 3 months after surgery. Method of measurement: Quality of life Criteria: The patients' perception of their health status in life and their level of satisfaction with this situation will be recorded and stored in the study plan database in three stages according to the items listed in the above measurement and for final analysis. In this study, the 36-question quality of life questionnaire (SF-36) will be used, which has 36 questions and consists of 8 subscales, and each subscale consists of 2 to 10 items. The eight subscales of this questionnaire are: 1) Physical function (PF) 2) Role disruption due to physical health (RP) 3) Role disruption due to emotional health (RE) 4) Energy/fatigue (EF) 5) Emotional well-being (EW) 6 ) social function (SF) 7) pain (P) 8) general health (GH). Due to the complexity of scoring this questionnaire, its full scoring takes place in several stages. Also, at the end of scoring, two general subscales will be obtained for this questionnaire, which are: 1) physical health subscale, 2) mental health subscale.</prim_outcome>
    </primary_outcome>
    <secondary_outcome>
      <sec_outcome>Change in ODI Disability Index score. Timepoint: One month and 3 months after surgery. Method of measurement: The degree of disability caused by back pain will also be measured in three stages according to the above mentioned times and will be recorded and stored in the database software of the study plan. The Oswestry Disability Index (ODI) questionnaire will be used to measure the level of patients' inability to perform daily activities, which includes 10 sections and each section has a score between 0 and 5, where a score of 0 equals "no pain" and a score of 5 equals " "The worst pain imaginable for the patient", so the first sentence in each section has zero points and the last sentence has 5 points. Therefore, the total raw score will be between zero and 50 points, and a higher score indicates more disability in the patient. To express the test result as a percentage, multiplying the raw score by 2 will be used.</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>2023-07-16</approval_date>
        <contact_name>Educational, Research and Treatment Center of Dr. Shariati Hospital - Tehran University of Medical S</contact_name>
        <contact_address>No.10, 8th Alley, North Mosaddegh St, Mirdamad Blvd. Tehran Tehran Iran (Islamic Republic of)</contact_address>
        <contact_phone></contact_phone>
        <contact_email></contact_email>
      </ethics_review>
    </ethics_reviews>
  </trial>
</trials>
