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Chronic DiseasePhase 2NCT02784262

Botulinum Toxin Type A Block of the Sphenopalatine Ganglion in Chronic Rhinosinusitis With Nasal Polyposis

A Phase 2 study testing botox injection Multiguide in people with Chronic Disease and Nasal Polyposis, run by Norwegian University of Science and Technology at 1 site in Norway.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Chronic rhinosinusitis (CRS) with nasal polyps is a particularly challenging form of chronic rhinosinusitis in several ways. Patients have significantly more severe symptom burden and worse quality of life than patients with chronic rhinosinusitis without nasal polyps. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Chronic Disease, Nasal Polyposis, Rhinitis
What is being tested?
botox injection Multiguide
Could I receive a placebo?
No, everyone receives an active treatment
How many people
11 participants
Where
1 siteNorway
Study dates
Oct 2016to Dec 2018
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • written informed consent
  • chronic rhinosinusitis with nose polyps (CRSwNP) according to European position paper on rhinosinusitis and nasal polyps (EPOS) criteria
  • no satisfactory effect of medicinal or surgical treatment

Who cannot join

  • systemic or local disease or condition that may result in a higher risk for complications
  • psychiatric disorder that is indicates against the treatment
  • pregnancy, breastfeeding, fertile female not using contraception
  • abuse of drugs, narcotics or alcohol
  • hypersensitivity against marcain, lidocain, xylocain, or adrenalin, and similar drugs
  • anatomical conditions that hinder injection
Show all 10Show fewer
  • known sensitivity for botulinum toxin type A or for adjuvant substances
  • treatment with drugs that interact with botulinum toxin type A:
  • suspicion of polyps caused by an allergy
  • suspicion of Samters triade

Trial locations and contacts

1 site in 1 country.

Norway1 site
  • St Olavs Hospital

    Trondheim

Other trials in Norway

About this study

Chronic rhinosinusitis (CRS) with nasal polyps is a particularly challenging form of chronic rhinosinusitis in several ways. Patients have significantly more severe symptom burden and worse quality of life than patients with chronic rhinosinusitis without nasal polyps. Many patients return to the health care providers with persistent symptoms after repeated medical and surgical treatment. Patients have usually tried several different types of treatments, ranging from less invasive procedures to extensive surgical treatment. The surgical treatment is often repeated several times. The most common surgical treatment is functional endoscopic sinus surgery, another established procedure is Vidian neurectomy.

The main object of this pilot study is to investigate the safety of onabotulinumtoxin A towards the sphenopalatine ganglion (SPG) in CRS patients with nasal polyps. Efficacy data will also be collected to provide indication on whether future placebo-controlled studies should be performed.

Read more

Onabotulinumtoxin A inhibits the secretion of acetylcholine, blocking the parasympathetic reflex cascade in the SPG. As a result, the investigators expect less mucosal swelling, secretion and nasal polyps. The duration of such a blockade is believed to last for 3-9 months and will not lead to damage of the nerve.

This study opens up for improved treatment with less complications.

Being tested
botox injection Multiguide
Keywords
Botulinum Toxin Type A, Block, Sphenopalatine Ganglion
Medical subject headings
Chronic Disease, Nasal Polyps, Rhinitis, Bites and Stings

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • botox injection MultiguideDrug

    Also called Botulinum toxin type A

    botox injection under CT/MR navigation and with the navigation tool MultiGuide

Study groups in NCT02784262
Study groupRoleWhat they receive
botox injectionExperimental* Preoperative medication: Paracetamol 1,5g oral, diclofenac 50mg (evt ibuprofen 600mg) oral and/or diazepam 5-10 mg oral. * Skin and tissue inside the projected injection canal will be infiltrated with 5-10ml Marcain-Adrenalin (5mg/ml + 5microg/ml) for local anaesthesia. * Localization will be confirmed with help of navigation before the medication will be given. Intravascular injection will be prevented by control of aspiration.
Receives: Drug: botox injection Multiguide

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. adverse events

    Registration of all adverse events sorted by probable relation to botox or surgery. Data collected from symptom diary, in addition to an open question at consultation and put into the Case Report Form (CRF) by physician or nurse.

    Measured: from day 1 to 7 post surgery

Secondary outcomes (8)
  1. change in symptom index on a visual analog scale nasal obstruction/running nose

    Measured: 3 months

  2. change in sinonasal quality of life assessed with the sino-nasal outcome test 22 (SNOT-22)

    Measured: 3 months

  3. change in nose-sinus related quality of life assessed with a visual analog scale (VAS)

    Measured: 3 months

  4. change in the geometrics of the nose assessed by acoustic rhinometry

    Measured: 3 months

  5. change in air flow in the nose measured by peak nasal inspiratory flow (PNIF)

    Measured: 3 months

  6. change in polyp mass assessed by magnetic resonance imaging (MRI)

    Measured: 3 months

  7. change in polyp mass assessed by computer tomography (CT)

    Measured: 3 months

  8. change in quality of life expressed by Patients' Global Impression of Change (PGIC)

    Measured: 3 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 May 2016 (estimated)
  2. Study startOct 2016
  3. Primary completion4 Sep 2018
  4. Study completionDec 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
11 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02784262
Sponsor's protocol ID
011015-01
Other IDs
2015-004377-33, 2015
Status last verified
Oct 2021
First submitted
24 May 2016
Last updated
5 Nov 2021
Results posted
No
Data monitoring committee
No
Individual data sharing
Yes

Publications

  • Jamtoy KA, Tronvik E, Bratbak DF, Crespi J, Stovner LJ, Aschehoug I, Thorstensen WM. OnabotulinumtoxinA injection towards the SPG for treating symptoms of refractory chronic rhinosinusitis with nasal polyposis: a pilot study. Acta Otolaryngol. 2021 Oct;141(10):934-940. doi: 10.1080/00016489.2021.1982146. Epub 2021 Oct 11.

    PubMed 34633904

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing botox injection Multiguide in people with Chronic Disease and Nasal Polyposis, run by Norwegian University of Science and Technology at 1 site in Norway.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Nov 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Norway. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

adverse events (time frame: from day 1 to 7 post surgery). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02784262, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Nov 2021.

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