<clinical_study>
  <!-- This xml conforms to an XML Schema at:
    https://clinicaltrials.gov/ct2/html/images/info/public.xsd -->
  <required_header>
    <download_date>ClinicalTrials.gov processed this data on September 20, 2023</download_date>
    <link_text>Link to the current ClinicalTrials.gov record.</link_text>
    <url>https://clinicaltrials.gov/ct2/show/NCT03766568</url>
  </required_header>
  <id_info>
    <org_study_id>Sinus-Endo Study</org_study_id>
    <nct_id>NCT03766568</nct_id>
  </id_info>
  <brief_title>Single Use Device Endoscopy for the Diagnosis of Acute Bacterial Rhinosinusitis in Primary Care</brief_title>
  <acronym>Sinus-Endo</acronym>
  <official_title>Single Use Device Endoscopy for the Diagnosis of Acute Bacterial Rhinosinusitis in Primary Care: A Pilot and Feasibility Study</official_title>
  <sponsors>
    <lead_sponsor>
      <agency>Dominik Glinz</agency>
      <agency_class>Other</agency_class>
    </lead_sponsor>
    <collaborator>
      <agency>University Hospital, Basel, Switzerland</agency>
      <agency_class>Other</agency_class>
    </collaborator>
  </sponsors>
  <source>Basel Institute for Clinical Epidemiology and Biostatistics</source>
  <oversight_info>
    <has_dmc>No</has_dmc>
    <is_fda_regulated_drug>No</is_fda_regulated_drug>
    <is_fda_regulated_device>No</is_fda_regulated_device>
  </oversight_info>
  <brief_summary>
    <textblock>
      This is a pilot study to assess the first time use of the JGG endoscope® in humans and in&#xD;
      primary care. The JGG endoscope® is attached to a Heine® otoscope and allows to inspect and&#xD;
      to collect samples from the middle meatus of the sinus. The JGG endoscope® is sterile&#xD;
      packaged, for one way use and disposable.&#xD;
    </textblock>
  </brief_summary>
  <detailed_description>
    <textblock>
      Acute rhinosinusitis is one of the most common reasons for consultations and antibiotic&#xD;
      prescriptions in primary care although the condition is primarily of viral origin. The main&#xD;
      reason for antibiotic overuse in acute rhinosinusitis is the lack of diagnostic tests of&#xD;
      sufficient accuracy to confirm or rule out the diagnosis of acute bacterial rhinosinusitis&#xD;
      (ABRS).&#xD;
&#xD;
      The gold standard for the diagnosis of ABRS is a bacterial culture from sinus maxillary&#xD;
      puncture. This procedure is painful, prone to complications and only done in selected&#xD;
      patients by oto-rhino-laryngology (ORL) specialists or for research purposes. Therefore,&#xD;
      endoscopy of the middle meatus and collection of diagnostic material from the ostium draining&#xD;
      the sinus is the diagnostic method of choice for ABRS and routinely used by ORL specialists&#xD;
      in house and elsewhere. In patients with clinical symptoms of sufficient severity and&#xD;
      duration (typically 5-10 days) for ABRS, endoscopy has a sensitivity of 85.7% (95% confidence&#xD;
      interval, 56.2-97.5), specificity of 90.6% (73.8-97.5), positive predictive value of 80%&#xD;
      (51.4-94.7), negative predictive value of 93.5% (77.2-98.9) for culture proven ABRS when&#xD;
      compared with cultures gained from sinus puncture. Because of high upfront costs and&#xD;
      logistical reason (disinfection) endoscopy is not used in general practice or internal&#xD;
      medicine.&#xD;
&#xD;
      Dr. Jens G. Hansen has developed the disposable JGG endoscope® (JGG stands for the surnames&#xD;
      of the inventor and his wife) which can be attached to the new generation of Heine® otoscopes&#xD;
      with a LED light source that allows the inspection of the ostium in the middle meatus and&#xD;
      collection of material for bacterial culture for the diagnosis of ABRS in primary care. After&#xD;
      local anaesthesiology of the cavum nasi a sample material for cultures can be gained&#xD;
      (earliest 10 min after local anaesthesia). The diagnostic procedure poses patients at minimal&#xD;
      risk for complications and is of very little and short-termed discomfort.&#xD;
&#xD;
      In a pilot study the investigators would like to test the JGG endoscope® in 60 patients with&#xD;
      suspected acute bacterial rhinosinusitis in the ORL unit of the University Hospital Basel and&#xD;
      selected general practices that collaborate with the Centre for Primary Health Care of the&#xD;
      University of Basel.&#xD;
&#xD;
      Objectives:&#xD;
&#xD;
        1. To assess the feasibility of visualization and sample collection from the middle meatus&#xD;
           with the JGG endoscope® in patients with clinically diagnosed acute bacterial&#xD;
           rhinosinusitis in Swiss primary care setting&#xD;
&#xD;
        2. to investigate whether the JGG endoscope® supports the decision of antibiotic&#xD;
           prescribing&#xD;
&#xD;
        3. to assess patients' and physicians' acceptability of the examination with the JGG&#xD;
           endoscope®&#xD;
&#xD;
        4. to investigate the prevalence of culture proven acute bacterial rhinosinusitis from&#xD;
           samples of the middle meatus by the JGG endoscope® in patients with clinically diagnosed&#xD;
           acute rhinosinusitis&#xD;
&#xD;
        5. to investigate the number of patients with acute rhinosinusitis diagnosed by the JGG&#xD;
           endoscope® with any and/or deferred antibiotic prescriptions&#xD;
&#xD;
        6. to investigate the days with restrictions and symptoms in patients with acute&#xD;
           rhinosinusitis with positive and negative bacterial cultures diagnosed by the JGG&#xD;
           endoscope®&#xD;
&#xD;
        7. to investigate any serious adverse event related to the JGG endoscope®.&#xD;
&#xD;
      Design Prospective observational cohort study (single arm study)&#xD;
    </textblock>
  </detailed_description>
  <overall_status>Unknown status</overall_status>
  <last_known_status>Recruiting</last_known_status>
  <start_date type="Actual">December 17, 2018</start_date>
  <completion_date type="Anticipated">September 30, 2020</completion_date>
  <primary_completion_date type="Anticipated">May 31, 2020</primary_completion_date>
  <phase>N/A</phase>
  <study_type>Interventional</study_type>
  <has_expanded_access>No</has_expanded_access>
  <study_design_info>
    <allocation>N/A</allocation>
    <intervention_model>Single Group Assignment</intervention_model>
    <intervention_model_description>Prospective observational cohort study (single arm study)</intervention_model_description>
    <primary_purpose>Diagnostic</primary_purpose>
    <masking>None (Open Label)</masking>
  </study_design_info>
  <primary_outcome>
    <measure>Prevalence of successful JGG endoscope® application</measure>
    <time_frame>Baseline Day 0</time_frame>
    <description>The number of patients with successful visualization and sample collection from the middle meatus with the JGG endoscope®</description>
  </primary_outcome>
  <primary_outcome>
    <measure>Prevalence of complications</measure>
    <time_frame>2 weeks follow-up</time_frame>
    <description>The number of patients with complications related to the examination with the JGG endoscope®.</description>
  </primary_outcome>
  <secondary_outcome>
    <measure>Influence of JGG endoscope® to support the decision of antibiotic prescribing</measure>
    <time_frame>one weeks follow-up</time_frame>
    <description>After each examination with the JGG endoscope, each physician will report on a Likert scale with five categories how the physician would judge usefulness of the device for decision to prescribe antibiotics.(The examination with the JGG endoscope(R) supported my decision whether to prescribe antibiotics or not; possible answers 1: don't agree, 2: partially don't agree, 3: neutral, 4: partially agree, 5: agree). The findings will be presented descriptively.</description>
  </secondary_outcome>
  <secondary_outcome>
    <measure>Prevalence of bacterial Rhinosinusitis</measure>
    <time_frame>2 weeks follow-up</time_frame>
    <description>The number of patient with culture proven acute bacterial rhinosinusitis from samples of the middle meatus diagnosed by the JGG endoscope®</description>
  </secondary_outcome>
  <secondary_outcome>
    <measure>Prevalence of any or deferred antibiotic prescriptions</measure>
    <time_frame>2 weeks follow-up</time_frame>
    <description>The number of patients with any or deferred antibiotic prescriptions in patients with acute rhinosinusitis diagnosed by the JGG endoscope®</description>
  </secondary_outcome>
  <secondary_outcome>
    <measure>Number of days with restrictions</measure>
    <time_frame>2 weeks follow-up</time_frame>
    <description>The mean days with restrictions and symptoms from acute rhinosinusitis at Day 14 in patients with positive and negative cultures as diagnosed with the JGG endoscope®</description>
  </secondary_outcome>
  <secondary_outcome>
    <measure>Patients's acceptability of JGG endoscope®</measure>
    <time_frame>one week follow-up</time_frame>
    <description>The patients' acceptability of the device will be assessed on Likert scale (If I would suffer again from an akute sinusitis, I would again agree being investigated with the JGG endoscope(R); possible answers 1: don't agree, 2: partially don't agree, 3: don't know, 4: partially agree, 5: agree). The findings will be presented descriptively.</description>
  </secondary_outcome>
  <secondary_outcome>
    <measure>Physicians' acceptability by a global usefulness rating on Likert scales</measure>
    <time_frame>6 month</time_frame>
    <description>The physicians' acceptability will be evaluated by a global usefulness rating on Likert scales with five categories after recruitment completion (The ratio of additional effort due to the JGG endoscope(R) and the newly gained information is good, possible answers 1: don't agree, 2: partially don't agree, 3: neutral, 4: partially agree, 5: agree). The findings will be presented descriptively.</description>
  </secondary_outcome>
  <secondary_outcome>
    <measure>Prevalence of serious adverse events</measure>
    <time_frame>2 weeks follow-up</time_frame>
    <description>The number of patients with any serious adverse event within the two weeks follow-up</description>
  </secondary_outcome>
  <number_of_arms>1</number_of_arms>
  <enrollment type="Anticipated">60</enrollment>
  <condition>Acute Bacterial Sinusitis</condition>
  <arm_group>
    <arm_group_label>Diagnostic with JGG endoscope</arm_group_label>
    <arm_group_type>Experimental</arm_group_type>
  </arm_group>
  <intervention>
    <intervention_type>Device</intervention_type>
    <intervention_name>JGG endoscope(R)</intervention_name>
    <description>The JGG endoscope(R) is attached to the new generation of Heine® otoscopes with a LED light source that allows the inspection of the ostium in the middle meatus and collection of material for bacterial culture for the diagnosis of ABRS in primary care. After local anaesthesiology of the cavum nasi a sample material for cultures can be gained (earliest 10 min after local anaesthesia). The diagnostic procedure poses patients at minimal risk for complications and is of very little and short-termed discomfort.</description>
    <arm_group_label>Diagnostic with JGG endoscope</arm_group_label>
  </intervention>
  <eligibility>
    <criteria>
      <textblock>
        Inclusion Criteria:&#xD;
&#xD;
          -  Adults patients aged ≥18 years, with acute rhinosinusitis&#xD;
&#xD;
          -  Duration: worsening of symptoms after 5 days after onset of symptoms or if symptoms&#xD;
             persist for more than 10 days, but no longer than 28 days. In addition, Criteria 1 and&#xD;
             2 must be fulfilled.&#xD;
&#xD;
        Criteria 1 for acute rhinosinusitis:&#xD;
&#xD;
        [Nasal blockage/obstruction/congestion OR Nasal Discharge (anterior/ posterior nasal drip)]&#xD;
        AND [Facial pain/ pressure OR Reduction or loss of smell]&#xD;
&#xD;
        Criteria 2 for acute bacterial rhinosinusitis&#xD;
&#xD;
        Indicated by the presence of at least one of the following symptoms:&#xD;
&#xD;
          -  discoloured discharge (unilateral predominance)&#xD;
&#xD;
          -  severe local pain (unilateral predominance)&#xD;
&#xD;
          -  fever, that is &gt;38°C&#xD;
&#xD;
          -  elevated inflammatory markers (CRP)&#xD;
&#xD;
          -  'double sickening' whereby the patient's condition deteriorates.&#xD;
&#xD;
        Exclusion Criteria:&#xD;
&#xD;
          -  Not being able to provide written informed consent in German (due to any mental or&#xD;
             intellectual problem or other reasons)&#xD;
&#xD;
          -  Not being available for follow-up&#xD;
&#xD;
          -  Previous participation in Sinus-Endo study&#xD;
&#xD;
          -  Use of antibiotic the last 4 weeks&#xD;
&#xD;
          -  Known pathology or malformation of the sinuses or nasal cavity (like polyposis)&#xD;
&#xD;
          -  Known pregnancy&#xD;
&#xD;
          -  Allergic reactions to local anaesthetics&#xD;
&#xD;
          -  Anticoagulation therapy&#xD;
      </textblock>
    </criteria>
    <gender>All</gender>
    <minimum_age>18 Years</minimum_age>
    <maximum_age>N/A</maximum_age>
    <healthy_volunteers>No</healthy_volunteers>
  </eligibility>
  <overall_official>
    <last_name>Heiner C Bucher, Prof.</last_name>
    <role>Principal Investigator</role>
    <affiliation>CEB</affiliation>
  </overall_official>
  <overall_contact>
    <last_name>Dominik Glinz, Dr. sc.</last_name>
    <phone>+41 61 328 54 02</phone>
    <email>dominik.glinz@usb.ch</email>
  </overall_contact>
  <overall_contact_backup>
    <last_name>Heiner C Bucher, Prof.</last_name>
    <phone>+41 61 556 5100</phone>
    <email>heiner.bucher@usb.ch</email>
  </overall_contact_backup>
  <location>
    <facility>
      <name>Praxis Vogt</name>
      <address>
        <city>Liestal</city>
        <state>BL</state>
        <zip>4410</zip>
        <country>Switzerland</country>
      </address>
    </facility>
    <status>Recruiting</status>
    <contact>
      <last_name>Jürg Vogt, MD</last_name>
      <phone>+619310080</phone>
    </contact>
  </location>
  <location>
    <facility>
      <name>Hausarztpraxis Muttenz AG</name>
      <address>
        <city>Muttenz</city>
        <state>BL</state>
        <zip>4132</zip>
        <country>Switzerland</country>
      </address>
    </facility>
    <status>Recruiting</status>
    <contact>
      <last_name>Bernhard Schaller, MD</last_name>
      <phone>+41614612828</phone>
    </contact>
  </location>
  <location>
    <facility>
      <name>mediX toujours Pratteln</name>
      <address>
        <city>Pratteln</city>
        <state>BL</state>
        <zip>4133</zip>
        <country>Switzerland</country>
      </address>
    </facility>
    <status>Recruiting</status>
    <contact>
      <last_name>Andreas Marti, MD</last_name>
      <phone>+41 61 825 90 90</phone>
    </contact>
  </location>
  <location>
    <facility>
      <name>HNO Klinik, University Hospital Basel</name>
      <address>
        <city>Basel</city>
        <state>BS</state>
        <zip>4031</zip>
        <country>Switzerland</country>
      </address>
    </facility>
    <status>Recruiting</status>
    <contact>
      <last_name>Katharina Leitmeyer, MD</last_name>
      <phone>+41 61 328 71 08</phone>
    </contact>
  </location>
  <location>
    <facility>
      <name>mediX toujours Basel</name>
      <address>
        <city>Basel</city>
        <state>BS</state>
        <zip>4051</zip>
        <country>Switzerland</country>
      </address>
    </facility>
    <status>Recruiting</status>
    <contact>
      <last_name>Caroline Trutmann, MD</last_name>
      <phone>+41 61 500 11 00</phone>
    </contact>
  </location>
  <location>
    <facility>
      <name>Praxis Hammer</name>
      <address>
        <city>Basel</city>
        <state>BS</state>
        <zip>4057</zip>
        <country>Switzerland</country>
      </address>
    </facility>
    <status>Not yet recruiting</status>
    <contact>
      <last_name>Claus Diermayr, MD</last_name>
      <phone>+41 61 692 88 11</phone>
    </contact>
  </location>
  <location_countries>
    <country>Switzerland</country>
  </location_countries>
  <verification_date>January 2020</verification_date>
  <study_first_submitted>December 3, 2018</study_first_submitted>
  <study_first_submitted_qc>December 5, 2018</study_first_submitted_qc>
  <study_first_posted type="Actual">December 6, 2018</study_first_posted>
  <last_update_submitted>January 13, 2020</last_update_submitted>
  <last_update_submitted_qc>January 13, 2020</last_update_submitted_qc>
  <last_update_posted type="Actual">January 14, 2020</last_update_posted>
  <responsible_party>
    <responsible_party_type>Sponsor-Investigator</responsible_party_type>
    <investigator_affiliation>Basel Institute for Clinical Epidemiology and Biostatistics</investigator_affiliation>
    <investigator_full_name>Dominik Glinz</investigator_full_name>
    <investigator_title>Principal investigator</investigator_title>
  </responsible_party>
  <keyword>Rhinosinusitis</keyword>
  <keyword>upper respiratory tract infection</keyword>
  <keyword>antibiotic</keyword>
  <keyword>endoscopy</keyword>
  <keyword>Otolaryngology</keyword>
  <keyword>primary care</keyword>
  <condition_browse>
    <!-- CAUTION:  The following MeSH terms are assigned with an imperfect algorithm            -->
    <mesh_term>Sinusitis</mesh_term>
  </condition_browse>
  <patient_data>
    <sharing_ipd>Undecided</sharing_ipd>
  </patient_data>
  <!-- Results have not yet been posted for this study                                          -->
</clinical_study>


download date: ClinicalTrials.gov processed this data on September 20, 2023
link text: Link to the current ClinicalTrials.gov record.
url: https://clinicaltrials.gov/ct2/show/NCT03766568
org study id: Sinus-Endo Study
nct id: NCT03766568
lead sponsor: 
collaborator: 
has dmc: No
is fda regulated drug: No
is fda regulated device: No
This is a pilot study to assess the first time use of the JGG endoscope® in humans and in
      primary care. The JGG endoscope® is attached to a Heine® otoscope and allows to inspect and
      to collect samples from the middle meatus of the sinus. The JGG endoscope® is sterile
      packaged, for one way use and disposable.
Acute rhinosinusitis is one of the most common reasons for consultations and antibiotic
      prescriptions in primary care although the condition is primarily of viral origin. The main
      reason for antibiotic overuse in acute rhinosinusitis is the lack of diagnostic tests of
      sufficient accuracy to confirm or rule out the diagnosis of acute bacterial rhinosinusitis
      (ABRS).

      The gold standard for the diagnosis of ABRS is a bacterial culture from sinus maxillary
      puncture. This procedure is painful, prone to complications and only done in selected
      patients by oto-rhino-laryngology (ORL) specialists or for research purposes. Therefore,
      endoscopy of the middle meatus and collection of diagnostic material from the ostium draining
      the sinus is the diagnostic method of choice for ABRS and routinely used by ORL specialists
      in house and elsewhere. In patients with clinical symptoms of sufficient severity and
      duration (typically 5-10 days) for ABRS, endoscopy has a sensitivity of 85.7% (95% confidence
      interval, 56.2-97.5), specificity of 90.6% (73.8-97.5), positive predictive value of 80%
      (51.4-94.7), negative predictive value of 93.5% (77.2-98.9) for culture proven ABRS when
      compared with cultures gained from sinus puncture. Because of high upfront costs and
      logistical reason (disinfection) endoscopy is not used in general practice or internal
      medicine.

      Dr. Jens G. Hansen has developed the disposable JGG endoscope® (JGG stands for the surnames
      of the inventor and his wife) which can be attached to the new generation of Heine® otoscopes
      with a LED light source that allows the inspection of the ostium in the middle meatus and
      collection of material for bacterial culture for the diagnosis of ABRS in primary care. After
      local anaesthesiology of the cavum nasi a sample material for cultures can be gained
      (earliest 10 min after local anaesthesia). The diagnostic procedure poses patients at minimal
      risk for complications and is of very little and short-termed discomfort.

      In a pilot study the investigators would like to test the JGG endoscope® in 60 patients with
      suspected acute bacterial rhinosinusitis in the ORL unit of the University Hospital Basel and
      selected general practices that collaborate with the Centre for Primary Health Care of the
      University of Basel.

      Objectives:

        1. To assess the feasibility of visualization and sample collection from the middle meatus
           with the JGG endoscope® in patients with clinically diagnosed acute bacterial
           rhinosinusitis in Swiss primary care setting

        2. to investigate whether the JGG endoscope® supports the decision of antibiotic
           prescribing

        3. to assess patients' and physicians' acceptability of the examination with the JGG
           endoscope®

        4. to investigate the prevalence of culture proven acute bacterial rhinosinusitis from
           samples of the middle meatus by the JGG endoscope® in patients with clinically diagnosed
           acute rhinosinusitis

        5. to investigate the number of patients with acute rhinosinusitis diagnosed by the JGG
           endoscope® with any and/or deferred antibiotic prescriptions

        6. to investigate the days with restrictions and symptoms in patients with acute
           rhinosinusitis with positive and negative bacterial cultures diagnosed by the JGG
           endoscope®

        7. to investigate any serious adverse event related to the JGG endoscope®.

      Design Prospective observational cohort study (single arm study)
allocation: N/A
intervention model: Single Group Assignment
intervention model description: Prospective observational cohort study (single arm study)
primary purpose: Diagnostic
masking: None (Open Label)
measure: Prevalence of successful JGG endoscope® application
time frame: Baseline Day 0
description: The number of patients with successful visualization and sample collection from the middle meatus with the JGG endoscope®
measure: Prevalence of complications
time frame: 2 weeks follow-up
description: The number of patients with complications related to the examination with the JGG endoscope®.
measure: Influence of JGG endoscope® to support the decision of antibiotic prescribing
time frame: one weeks follow-up
description: After each examination with the JGG endoscope, each physician will report on a Likert scale with five categories how the physician would judge usefulness of the device for decision to prescribe antibiotics.(The examination with the JGG endoscope(R) supported my decision whether to prescribe antibiotics or not; possible answers 1: don't agree, 2: partially don't agree, 3: neutral, 4: partially agree, 5: agree). The findings will be presented descriptively.
measure: Prevalence of bacterial Rhinosinusitis
time frame: 2 weeks follow-up
description: The number of patient with culture proven acute bacterial rhinosinusitis from samples of the middle meatus diagnosed by the JGG endoscope®
measure: Prevalence of any or deferred antibiotic prescriptions
time frame: 2 weeks follow-up
description: The number of patients with any or deferred antibiotic prescriptions in patients with acute rhinosinusitis diagnosed by the JGG endoscope®
measure: Number of days with restrictions
time frame: 2 weeks follow-up
description: The mean days with restrictions and symptoms from acute rhinosinusitis at Day 14 in patients with positive and negative cultures as diagnosed with the JGG endoscope®
measure: Patients's acceptability of JGG endoscope®
time frame: one week follow-up
description: The patients' acceptability of the device will be assessed on Likert scale (If I would suffer again from an akute sinusitis, I would again agree being investigated with the JGG endoscope(R); possible answers 1: don't agree, 2: partially don't agree, 3: don't know, 4: partially agree, 5: agree). The findings will be presented descriptively.
measure: Physicians' acceptability by a global usefulness rating on Likert scales
time frame: 6 month
description: The physicians' acceptability will be evaluated by a global usefulness rating on Likert scales with five categories after recruitment completion (The ratio of additional effort due to the JGG endoscope(R) and the newly gained information is good, possible answers 1: don't agree, 2: partially don't agree, 3: neutral, 4: partially agree, 5: agree). The findings will be presented descriptively.
measure: Prevalence of serious adverse events
time frame: 2 weeks follow-up
description: The number of patients with any serious adverse event within the two weeks follow-up
arm group label: Diagnostic with JGG endoscope
arm group type: Experimental
intervention type: Device
intervention name: JGG endoscope(R)
description: The JGG endoscope(R) is attached to the new generation of Heine® otoscopes with a LED light source that allows the inspection of the ostium in the middle meatus and collection of material for bacterial culture for the diagnosis of ABRS in primary care. After local anaesthesiology of the cavum nasi a sample material for cultures can be gained (earliest 10 min after local anaesthesia). The diagnostic procedure poses patients at minimal risk for complications and is of very little and short-termed discomfort.
arm group label: Diagnostic with JGG endoscope
criteria: 
gender: All
minimum age: 18 Years
maximum age: N/A
healthy volunteers: No
last name: Heiner C Bucher, Prof.
role: Principal Investigator
affiliation: CEB
last name: Dominik Glinz, Dr. sc.
phone: +41 61 328 54 02
email: dominik.glinz@usb.ch
last name: Heiner C Bucher, Prof.
phone: +41 61 556 5100
email: heiner.bucher@usb.ch
facility: 
status: Recruiting
contact: 
facility: 
status: Recruiting
contact: 
facility: 
status: Recruiting
contact: 
facility: 
status: Recruiting
contact: 
facility: 
status: Recruiting
contact: 
facility: 
status: Not yet recruiting
contact: 
country: Switzerland
responsible party type: Sponsor-Investigator
investigator affiliation: Basel Institute for Clinical Epidemiology and Biostatistics
investigator full name: Dominik Glinz
investigator title: Principal investigator
mesh term: Sinusitis
sharing ipd: Undecided