Rhinosinusitis ChronicISONAMNCT05015530
Impact of Symbiofilm On Nasal Microbiota
An observational study of Rhinosinusitis Chronic and Microbiome, run by Lallemand Pharma AG at 1 site in France.
Trial summary
Healsea® chronic is CE marked medical device indicated in adults for the treatment of nasal symptoms of chronic rhinosinusitis. This is an hypertonic seawater-based nasal spray supplemented with natural Symbiofilm® extract (0.2%) isolated from marine bacteria. Read more about this study
- Who is it for?
- Ages 18 to 70 years
- Conditions the study is for
- Rhinosinusitis Chronic, Microbiome
- What is being tested?
- Healsea® Chronic, hypertonic seawater-based nasal spray supplemented with natural Symbiofilm® extract
- Type of treatment
- Medical device
- How many people
- 12 participants
- Where
- 1 siteFrance
- Study dates
- 12 Dec 2022to 19 May 2023
- Phase
- Observational
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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
Study population: The subjects will be recruited by the site among outpatients coming for routine consultation because of CRS.
Who may be able to join
- Male or female, aged 18 - 70 years
- Provision of signed and dated informed consent form
- Stated willingness to comply with all study procedures and availability for the duration of the study
- Diagnosed with CRS based on the diagnostic criteria of the EPOS guideline
- Registered with a social security scheme or covered by such a regime
Who cannot join
- Antibiotics or oral corticosteroids intake in the month prior to the study
- Endoscopic sinus surgery in the past 6 months
- Cystic fibrosis
- Wegener's granulomatosis
- Immunodeficiency
- Defective access to middle meatus
Show all 10Show fewer
- Lidocaine allergy
- Known hypersensitivity/allergy to any component of the test device
- Pregnant/Lactating female or absence of efficient contraception
- Under tutorship or guardianship
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Assessment of Sino-nasal Microbial Communities Changes in Adult Patients With Chronic Rhinosinusitis by 16 rRNA Gene Amplicon Sequencing Before and After 1-month Treatment Duration With Healsea® Chronic: an Exploratory Study
Healsea® chronic is CE marked medical device indicated in adults for the treatment of nasal symptoms of chronic rhinosinusitis. This is an hypertonic seawater-based nasal spray supplemented with natural Symbiofilm® extract (0.2%) isolated from marine bacteria. In vitro, Symbiofilm® inhibits at early stage biofilm formation from bacteria found to be more prevalent and abundant in CRS patients (e.g. Staphylococcus aureus, Pseudomonas aeruginosa). This exploratory study is designed with aim to determine if the antibiofilm properties of Symbiofilm® may modify sino-nasal microbiota, impacting α and/ or β diversities.
Read the detailed description
Chronic rhinosinusitis (CRS) is an inflammation of the nose and paranasal sinuses and is characterized by two or more symptoms, one of which should be either nasal blockage/obstruction/congestion or nasal discharge (anterior/posterior nasal drip), lasting for 12 weeks or longer. In addition, facial pain or pressure and a reduction in the sense of smell can occur. The condition can occur with or without nasal polyps.
Chronic rhinosinusitis (CRS) is a significant health problem and affects 5-12% of the general population.
The physiopathology of CRS is poorly understood with multiple environmental, host and microbial factors being implicated. Putative pathological factors include changes in the microbiota, imbalance of the local or systemic immune system, allergens, toxins and genetic predisposition.
A dysbiosis mechanism has been proposed as modulating inflammation in diseased sinuses. This hypothesis suggests that externally influenced changes in the nasal microbiome can result in dysbiosis, i.e. a shift from a "normal" or "healthy" microbial community structure and that this shift may be responsible for the initiation or maintenance of CRS. For example, the disruption of the commensal biofilm during a viral upper respiratory tract infection can create a niche for pathogenic species to grow. Despite many contradictory statements in the different studies some common trends emerge. Less diversity in the microbial community rather than an increased overall bacterial load seems to characterize CRS compared to the healthy state with no consensus about specific genera indicative of disease. However, anaerobes and S. aureus are found to be significantly more prevalent and abundant in CRS versus healthy controls. Bacterial biofilm is detected on the sinus mucosa in up to 80% of CRS patients and its presence does not imply that it is causing mucosal inflammation. However, in the context of CRS, there are several possible mechanisms by which biofilms may be pro-inflammatory including the release of planktonic organisms and the release of superantigens, which can cause ciliary dysfunction and inhibition of ciliary clearance. Bacterial biofilms are likely a key modulator of the refractory nature of CRS.
Although clinical evidence from well-designed trials is scarce, European Guidelines for chronic rhinosinusitis recommend daily nasal saline irrigation for reduction of the severity of symptoms of CRS. A recent Cochrane analysis has concluded that daily nasal irrigation with hypertonic saline solution is more effective than placebo to improve patient symptoms. The exact mechanisms by which nasal irrigation works are not known. However, most of the experts agree that it is primarily a mechanical intervention leading to direct cleansing of the nasal mucosa. Nevertheless, the efficacy of such solution remains moderate.
Healsea® Chronic is a CE marked medical device indicated in adults for the treatment of nasal symptoms of chronic rhinosinusitis. This is a seawater-based nasal spray supplemented with a natural Symbiofilm® extract (0.02%) isolated from marine bacteria. The nasal solution is hypertonic (NaCl 2.2%). Symbiofilm® is a marine postbiotic comprising active exopolysaccharides with emulsifying properties and in vitro antibiofilm activity. Antibiofilm properties have been demonstrated with the colorimetric microtiter plate assay. In this model, a significant inhibition of biofilm formation by Staphylococcus aureus and Haemophilus influenzae are observed. Detachment properties from human nasal epithelial cells of Staphylococcus aureus and Pseudomonas aeruginosa has also been demonstrated in vitro, suggesting an inhibition of biofilm formation at early stage in this model. Symbiofilm® has no bacteriostatic nor bactericidal activities.
To date, properly designed studies to evaluate the effect of topical therapies on microbiome are scarce so no definite conclusion can be made. In one study, use of saline irrigation with or without budesonideDCI used was not associated with significantly distinct microbiota composition among either controls or post-operative CRS patients with polyp.
This exploratory study is designed with aim to determine if the antibiofilm properties of Symbiofilm® may modify sino-nasal microbiota, impacting α and/ or β diversities. To this end middle meatus swab specimen will be taken from CRS patients before and after treatment with Healsea® Chronic. Bacteria colonization will be assessed using quantitative PCR and 16S rRNA gene sequencing.
Improvement of nasal symptoms and quality of life will be assessed with the Sino-Nasal Outcome Test score-22 (SNOT-22). Post-market vigilance of Healsea® Chronic and vigilance of study procedures will be assessed throughout the study.
- Conditions
- Rhinosinusitis Chronic, Microbiome
- Being tested
- Healsea® Chronic, hypertonic seawater-based nasal spray supplemented with natural Symbiofilm® extract
- Keywords
- Rhinosinusitis chronic, Adult, Biofilm, 16S rRNA sequencing, Nasal spray, Microbiome
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Healsea® Chronic, hypertonic seawater-based nasal spray supplemented with natural Symbiofilm® extractDevice
Healsea® Chronic nasal spray will be administered twice daily (1 puff, 1-2 sec) in each nostril during 30 days
| Study group | Role | What they receive |
|---|---|---|
| Test Medical Device | Healsea Chronic nasal spray will be administered twice daily (1 puff, 1-2 sec) in each nostril during 30 days Receives: Device: Healsea® Chronic, hypertonic seawater-based nasal spray supplemented with natural Symbiofilm® extract |
What is being measured
The primary outcome is the main question the study is designed to answer.
Comparaison of Alpha-diversity of Sino-nasal Microbiota Before and After Treatment (Visit 1 and Visit 2)
Comparaison of the values of alpha diversity of bacterial species assessed by the Shannon index at baseline and after the treatment period
Measured: At baseline (V1) and at end of the 30-day treatment period (V2)
Secondary outcomes (4)
Impact of Healsea® Chronic on Quality of Life Assessed by the Sino-Nasal Outcome Test Score-22
Change of SNOT-22 total score at the end of the 30-day treatment period versus baseline . A change >-9 is deemed clinically meaningful.
Measured: End of treatment (Visit 2(V2)-Day 30) versus screening/inclusion (Visit 1(V1)-Day 1)
Patient Satisfaction Questionnaire (Usability)
To assess patient 's satisfaction regarding the medical device usability
Measured: Visit 2(V2)-Day 30 (end of treatment)
Patient Satisfaction Questionnaire (Taste)
To assess patient 's satisfaction regarding the sensory perception (residual taste after spraying)
Measured: Visit 2(V2)-Day 30 (end of treatment)
Patient Satisfaction Questionnaire (Efficacy)
To assess patient 's satisfaction regarding product efficacy for chronic Rhinosinusitis (Cleansing and Moistening of nasal mucosa)
Measured: Visit 2(V2)-Day 30 (end of treatment)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Aug 2021
- Study start12 Dec 2022
- Primary completion19 May 2023
- Study completion19 May 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (11)Papers the sponsor has linked to this study.
- Other trials for Rhinosinusitis ChronicStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Other
- Time perspective
- Prospective
- Enrolment
- 12 participants (actual)
Sponsor and investigators
- Lead sponsor
- Lallemand Pharma AG
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Pr Guillaume de Bonnecaze, MD, PhD, Principal investigator, Department of Otorhinolaryngology , University Hospital of Toulouse (Larrey), France
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05015530
- Sponsor's protocol ID
- LPH-2102
- Acronym
- ISONAM
- Status last verified
- Mar 2023
- First submitted
- 12 Aug 2021
- Last updated
- 8 Nov 2024
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Publications
Fokkens WJ, Lund VJ, Hopkins C, Hellings PW, Kern R, Reitsma S, Toppila-Salmi S, Bernal-Sprekelsen M, Mullol J, Alobid I, Terezinha Anselmo-Lima W, Bachert C, Baroody F, von Buchwald C, Cervin A, Cohen N, Constantinidis J, De Gabory L, Desrosiers M, Diamant Z, Douglas RG, Gevaert PH, Hafner A, Harvey RJ, Joos GF, Kalogjera L, Knill A, Kocks JH, Landis BN, Limpens J, Lebeer S, Lourenco O, Meco C, Matricardi PM, O'Mahony L, Philpott CM, Ryan D, Schlosser R, Senior B, Smith TL, Teeling T, Tomazic PV, Wang DY, Wang D, Zhang L, Agius AM, Ahlstrom-Emanuelsson C, Alabri R, Albu S, Alhabash S, Aleksic A, Aloulah M, Al-Qudah M, Alsaleh S, Baban MA, Baudoin T, Balvers T, Battaglia P, Bedoya JD, Beule A, Bofares KM, Braverman I, Brozek-Madry E, Richard B, Callejas C, Carrie S, Caulley L, Chussi D, de Corso E, Coste A, El Hadi U, Elfarouk A, Eloy PH, Farrokhi S, Felisati G, Ferrari MD, Fishchuk R, Grayson W, Goncalves PM, Grdinic B, Grgic V, Hamizan AW, Heinichen JV, Husain S, Ping TI, Ivaska J, Jakimovska F, Jovancevic L, Kakande E, Kamel R, Karpischenko S, Kariyawasam HH, Kawauchi H, Kjeldsen A, Klimek L, Krzeski A, Kopacheva Barsova G, Kim SW, Lal D, Letort JJ, Lopatin A, Mahdjoubi A, Mesbahi A, Netkovski J, Nyenbue Tshipukane D, Obando-Valverde A, Okano M, Onerci M, Ong YK, Orlandi R, Otori N, Ouennoughy K, Ozkan M, Peric A, Plzak J, Prokopakis E, Prepageran N, Psaltis A, Pugin B, Raftopulos M, Rombaux P, Riechelmann H, Sahtout S, Sarafoleanu CC, Searyoh K, Rhee CS, Shi J, Shkoukani M, Shukuryan AK, Sicak M, Smyth D, Sindvongs K, Soklic Kosak T, Stjarne P, Sutikno B, Steinsvag S, Tantilipikorn P, Thanaviratananich S, Tran T, Urbancic J, Valiulius A, Vasquez de Aparicio C, Vicheva D, Virkkula PM, Vicente G, Voegels R, Wagenmann MM, Wardani RS, Welge-Lussen A, Witterick I, Wright E, Zabolotniy D, Zsolt B, Zwetsloot CP. European Position Paper on Rhinosinusitis and Nasal Polyps 2020. Rhinology. 2020 Feb 20;58(Suppl S29):1-464. doi: 10.4193/Rhin20.600.
PubMed 32077450Sivasubramaniam R, Douglas R. The microbiome and chronic rhinosinusitis. World J Otorhinolaryngol Head Neck Surg. 2018 Oct 31;4(3):216-221. doi: 10.1016/j.wjorl.2018.08.004. eCollection 2018 Sep.
PubMed 30506054Boase S, Foreman A, Cleland E, Tan L, Melton-Kreft R, Pant H, Hu FZ, Ehrlich GD, Wormald PJ. The microbiome of chronic rhinosinusitis: culture, molecular diagnostics and biofilm detection. BMC Infect Dis. 2013 May 8;13:210. doi: 10.1186/1471-2334-13-210.
PubMed 23656607Ramakrishnan VR, Hauser LJ, Frank DN. The sinonasal bacterial microbiome in health and disease. Curr Opin Otolaryngol Head Neck Surg. 2016 Feb;24(1):20-5. doi: 10.1097/MOO.0000000000000221.
PubMed 26575518Hoggard M, Wagner Mackenzie B, Jain R, Taylor MW, Biswas K, Douglas RG. Chronic Rhinosinusitis and the Evolving Understanding of Microbial Ecology in Chronic Inflammatory Mucosal Disease. Clin Microbiol Rev. 2017 Jan;30(1):321-348. doi: 10.1128/CMR.00060-16.
PubMed 27903594Koeller K, Herlemann DPR, Schuldt T, Ovari A, Guder E, Podbielski A, Kreikemeyer B, Olzowy B. Microbiome and Culture Based Analysis of Chronic Rhinosinusitis Compared to Healthy Sinus Mucosa. Front Microbiol. 2018 Apr 17;9:643. doi: 10.3389/fmicb.2018.00643. eCollection 2018.
PubMed 29755418Fastenberg JH, Hsueh WD, Mustafa A, Akbar NA, Abuzeid WM. Biofilms in chronic rhinosinusitis: Pathophysiology and therapeutic strategies. World J Otorhinolaryngol Head Neck Surg. 2016 May 5;2(4):219-229. doi: 10.1016/j.wjorl.2016.03.002. eCollection 2016 Dec.
PubMed 29204570Chong LY, Head K, Hopkins C, Philpott C, Glew S, Scadding G, Burton MJ, Schilder AG. Saline irrigation for chronic rhinosinusitis. Cochrane Database Syst Rev. 2016 Apr 26;4(4):CD011995. doi: 10.1002/14651858.CD011995.pub2.
PubMed 27115216O'Toole GA. Microtiter dish biofilm formation assay. J Vis Exp. 2011 Jan 30;(47):2437. doi: 10.3791/2437.
PubMed 21307833Liu CM, Kohanski MA, Mendiola M, Soldanova K, Dwan MG, Lester R, Nordstrom L, Price LB, Lane AP. Impact of saline irrigation and topical corticosteroids on the postsurgical sinonasal microbiota. Int Forum Allergy Rhinol. 2015 Mar;5(3):185-90. doi: 10.1002/alr.21467. Epub 2014 Dec 29.
PubMed 25556553Hopkins C, Gillett S, Slack R, Lund VJ, Browne JP. Psychometric validity of the 22-item Sinonasal Outcome Test. Clin Otolaryngol. 2009 Oct;34(5):447-54. doi: 10.1111/j.1749-4486.2009.01995.x.
PubMed 19793277
Study at a glance
From the registry record, last updated by the sponsor on 8 Nov 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Assessment of Sino-nasal Microbial Communities Changes in Adult Patients With Chronic Rhinosinusitis by 16 rRNA Gene Amplicon Sequencing Before and After 1-month Treatment Duration With Healsea® Chronic: an Exploratory Study
- ClinicalTrials.gov ID
- NCT05015530
- Acronym / sponsor ID
- ISONAM / LPH-2102
- Conditions
- Rhinosinusitis Chronic, Microbiome
- Keywords
- Rhinosinusitis chronic, Adult, Biofilm, 16S rRNA sequencing, Nasal spray, Microbiome
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 12 participants (actual)
- Lead sponsor
- Lallemand Pharma AGIndustry (pharma, biotech, devices)
- Study start
- 12 Dec 2022 (actual)
- Primary completion
- 19 May 2023 (actual)
- Study completion
- 19 May 2023 (actual)
- First posted
- 20 Aug 2021 (actual)
- Results
- Posted 8 Nov 2024
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Healsea® chronic is CE marked medical device indicated in adults for the treatment of nasal symptoms of chronic rhinosinusitis. This is an hypertonic seawater-based nasal spray supplemented with natural Symbiofilm® extract (0.2%) isolated from marine bacteria. In vitro, Symbiofilm® inhibits at early stage biofilm formation from bacteria found to be more prevalent and abundant in CRS patients (e.g. Staphylococcus aureus, Pseudomonas aeruginosa). This exploratory study is designed with aim to determine if the antibiofilm properties of Symbiofilm® may modify sino-nasal microbiota, impacting α and/ or β diversities.
Detailed description
Chronic rhinosinusitis (CRS) is an inflammation of the nose and paranasal sinuses and is characterized by two or more symptoms, one of which should be either nasal blockage/obstruction/congestion or nasal discharge (anterior/posterior nasal drip), lasting for 12 weeks or longer. In addition, facial pain or pressure and a reduction in the sense of smell can occur. The condition can occur with or without nasal polyps.
Chronic rhinosinusitis (CRS) is a significant health problem and affects 5-12% of the general population.
The physiopathology of CRS is poorly understood with multiple environmental, host and microbial factors being implicated. Putative pathological factors include changes in the microbiota, imbalance of the local or systemic immune system, allergens, toxins and genetic predisposition.
A dysbiosis mechanism has been proposed as modulating inflammation in diseased sinuses. This hypothesis suggests that externally influenced changes in the nasal microbiome can result in dysbiosis, i.e. a shift from a "normal" or "healthy" microbial community structure and that this shift may be responsible for the initiation or maintenance of CRS. For example, the disruption of the commensal biofilm during a viral upper respiratory tract infection can create a niche for pathogenic species to grow. Despite many contradictory statements in the different studies some common trends emerge. Less diversity in the microbial community rather than an increased overall bacterial load seems to characterize CRS compared to the healthy state with no consensus about specific genera indicative of disease. However, anaerobes and S. aureus are found to be significantly more prevalent and abundant in CRS versus healthy controls. Bacterial biofilm is detected on the sinus mucosa in up to 80% of CRS patients and its presence does not imply that it is causing mucosal inflammation. However, in the context of CRS, there are several possible mechanisms by which biofilms may be pro-inflammatory including the release of planktonic organisms and the release of superantigens, which can cause ciliary dysfunction and inhibition of ciliary clearance. Bacterial biofilms are likely a key modulator of the refractory nature of CRS.
Although clinical evidence from well-designed trials is scarce, European Guidelines for chronic rhinosinusitis recommend daily nasal saline irrigation for reduction of the severity of symptoms of CRS. A recent Cochrane analysis has concluded that daily nasal irrigation with hypertonic saline solution is more effective than placebo to improve patient symptoms. The exact mechanisms by which nasal irrigation works are not known. However, most of the experts agree that it is primarily a mechanical intervention leading to direct cleansing of the nasal mucosa. Nevertheless, the efficacy of such solution remains moderate.
Healsea® Chronic is a CE marked medical device indicated in adults for the treatment of nasal symptoms of chronic rhinosinusitis. This is a seawater-based nasal spray supplemented with a natural Symbiofilm® extract (0.02%) isolated from marine bacteria. The nasal solution is hypertonic (NaCl 2.2%). Symbiofilm® is a marine postbiotic comprising active exopolysaccharides with emulsifying properties and in vitro antibiofilm activity. Antibiofilm properties have been demonstrated with the colorimetric microtiter plate assay. In this model, a significant inhibition of biofilm formation by Staphylococcus aureus and Haemophilus influenzae are observed. Detachment properties from human nasal epithelial cells of Staphylococcus aureus and Pseudomonas aeruginosa has also been demonstrated in vitro, suggesting an inhibition of biofilm formation at early stage in this model. Symbiofilm® has no bacteriostatic nor bactericidal activities.
To date, properly designed studies to evaluate the effect of topical therapies on microbiome are scarce so no definite conclusion can be made. In one study, use of saline irrigation with or without budesonideDCI used was not associated with significantly distinct microbiota composition among either controls or post-operative CRS patients with polyp.
This exploratory study is designed with aim to determine if the antibiofilm properties of Symbiofilm® may modify sino-nasal microbiota, impacting α and/ or β diversities. To this end middle meatus swab specimen will be taken from CRS patients before and after treatment with Healsea® Chronic. Bacteria colonization will be assessed using quantitative PCR and 16S rRNA gene sequencing.
Improvement of nasal symptoms and quality of life will be assessed with the Sino-Nasal Outcome Test score-22 (SNOT-22). Post-market vigilance of Healsea® Chronic and vigilance of study procedures will be assessed throughout the study.
Study design
- Observational model
- Other
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Test Medical Device | – | Device: Healsea® Chronic, hypertonic seawater-based nasal spray supplemented with natural Symbiofilm® extractHealsea Chronic nasal spray will be administered twice daily (1 puff, 1-2 sec) in each nostril during 30 days |
Who may qualify
- Ages
- 18 to 70 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- The subjects will be recruited by the site among outpatients coming for routine consultation because of CRS.
Key inclusion criteria (5 listed)
- Male or female, aged 18 - 70 years
- Provision of signed and dated informed consent form
- Stated willingness to comply with all study procedures and availability for the duration of the study
- Diagnosed with CRS based on the diagnostic criteria of the EPOS guideline
- Registered with a social security scheme or covered by such a regime
Key exclusion criteria (10 listed)
- Antibiotics or oral corticosteroids intake in the month prior to the study
- Endoscopic sinus surgery in the past 6 months
- Cystic fibrosis
- Wegener's granulomatosis
- Immunodeficiency
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Healsea® Chronic, hypertonic seawater-based nasal spray supplemented with natural Symbiofilm® extractHealsea® Chronic nasal spray will be administered twice daily (1 puff, 1-2 sec) in each nostril during 30 days | Device | Test Medical Device |
Primary outcome
Comparaison of Alpha-diversity of Sino-nasal Microbiota Before and After Treatment (Visit 1 and Visit 2)
Time frame: At baseline (V1) and at end of the 30-day treatment period (V2)
Comparaison of the values of alpha diversity of bacterial species assessed by the Shannon index at baseline and after the treatment period
4 secondary outcomes
Impact of Healsea® Chronic on Quality of Life Assessed by the Sino-Nasal Outcome Test Score-22
Time frame: End of treatment (Visit 2(V2)-Day 30) versus screening/inclusion (Visit 1(V1)-Day 1)
Patient Satisfaction Questionnaire (Usability)
Time frame: Visit 2(V2)-Day 30 (end of treatment)
Patient Satisfaction Questionnaire (Taste)
Time frame: Visit 2(V2)-Day 30 (end of treatment)
Patient Satisfaction Questionnaire (Efficacy)
Time frame: Visit 2(V2)-Day 30 (end of treatment)
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 8 Nov 2024.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 32077450Fokkens WJ, Lund VJ, Hopkins C, Hellings PW, Kern R, Reitsma S, Toppila-Salmi S, Bernal-Sprekelsen M, Mullol J, Alobid I, Terezinha Anselmo-Lima W, Bachert C, Baroody F, von Buchwald C, Cervin A, Cohen N, Constantinidis J, De Gabory L, Desrosiers M, Diamant Z, Douglas RG, Gevaert PH, Hafner A, Harvey RJ, Joos GF, Kalogjera L, Knill A, Kocks JH, Landis BN, Limpens J, Lebeer S, Lourenco O, Meco C, Matricardi PM, O'Mahony L, Philpott CM, Ryan D, Schlosser R, Senior B, Smith TL, Teeling T, Tomazic PV, Wang DY, Wang D, Zhang L, Agius AM, Ahlstrom-Emanuelsson C, Alabri R, Albu S, Alhabash S, Aleksic A, Aloulah M, Al-Qudah M, Alsaleh S, Baban MA, Baudoin T, Balvers T, Battaglia P, Bedoya JD, Beule A, Bofares KM, Braverman I, Brozek-Madry E, Richard B, Callejas C, Carrie S, Caulley L, Chussi D, de Corso E, Coste A, El Hadi U, Elfarouk A, Eloy PH, Farrokhi S, Felisati G, Ferrari MD, Fishchuk R, Grayson W, Goncalves PM, Grdinic B, Grgic V, Hamizan AW, Heinichen JV, Husain S, Ping TI, Ivaska J, Jakimovska F, Jovancevic L, Kakande E, Kamel R, Karpischenko S, Kariyawasam HH, Kawauchi H, Kjeldsen A, Klimek L, Krzeski A, Kopacheva Barsova G, Kim SW, Lal D, Letort JJ, Lopatin A, Mahdjoubi A, Mesbahi A, Netkovski J, Nyenbue Tshipukane D, Obando-Valverde A, Okano M, Onerci M, Ong YK, Orlandi R, Otori N, Ouennoughy K, Ozkan M, Peric A, Plzak J, Prokopakis E, Prepageran N, Psaltis A, Pugin B, Raftopulos M, Rombaux P, Riechelmann H, Sahtout S, Sarafoleanu CC, Searyoh K, Rhee CS, Shi J, Shkoukani M, Shukuryan AK, Sicak M, Smyth D, Sindvongs K, Soklic Kosak T, Stjarne P, Sutikno B, Steinsvag S, Tantilipikorn P, Thanaviratananich S, Tran T, Urbancic J, Valiulius A, Vasquez de Aparicio C, Vicheva D, Virkkula PM, Vicente G, Voegels R, Wagenmann MM, Wardani RS, Welge-Lussen A, Witterick I, Wright E, Zabolotniy D, Zsolt B, Zwetsloot CP. European Position Paper on Rhinosinusitis and Nasal Polyps 2020. Rhinology. 2020 Feb 20;58(Suppl S29):1-464. doi: 10.4193/Rhin20.600.
- Background: PubMed 30506054Sivasubramaniam R, Douglas R. The microbiome and chronic rhinosinusitis. World J Otorhinolaryngol Head Neck Surg. 2018 Oct 31;4(3):216-221. doi: 10.1016/j.wjorl.2018.08.004. eCollection 2018 Sep.
- Background: PubMed 23656607Boase S, Foreman A, Cleland E, Tan L, Melton-Kreft R, Pant H, Hu FZ, Ehrlich GD, Wormald PJ. The microbiome of chronic rhinosinusitis: culture, molecular diagnostics and biofilm detection. BMC Infect Dis. 2013 May 8;13:210. doi: 10.1186/1471-2334-13-210.
- Background: PubMed 26575518Ramakrishnan VR, Hauser LJ, Frank DN. The sinonasal bacterial microbiome in health and disease. Curr Opin Otolaryngol Head Neck Surg. 2016 Feb;24(1):20-5. doi: 10.1097/MOO.0000000000000221.
- Background: PubMed 27903594Hoggard M, Wagner Mackenzie B, Jain R, Taylor MW, Biswas K, Douglas RG. Chronic Rhinosinusitis and the Evolving Understanding of Microbial Ecology in Chronic Inflammatory Mucosal Disease. Clin Microbiol Rev. 2017 Jan;30(1):321-348. doi: 10.1128/CMR.00060-16.
- Background: PubMed 29755418Koeller K, Herlemann DPR, Schuldt T, Ovari A, Guder E, Podbielski A, Kreikemeyer B, Olzowy B. Microbiome and Culture Based Analysis of Chronic Rhinosinusitis Compared to Healthy Sinus Mucosa. Front Microbiol. 2018 Apr 17;9:643. doi: 10.3389/fmicb.2018.00643. eCollection 2018.
- Background: PubMed 29204570Fastenberg JH, Hsueh WD, Mustafa A, Akbar NA, Abuzeid WM. Biofilms in chronic rhinosinusitis: Pathophysiology and therapeutic strategies. World J Otorhinolaryngol Head Neck Surg. 2016 May 5;2(4):219-229. doi: 10.1016/j.wjorl.2016.03.002. eCollection 2016 Dec.
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- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Pr Guillaume de Bonnecaze, MD, PhD principal investigator
Department of Otorhinolaryngology , University Hospital of Toulouse (Larrey), France
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Rhinosinusitis Chronic and Microbiome, run by Lallemand Pharma AG at 1 site in France.
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 5 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 8 Nov 2024. 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 France. 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.
Are results available for this study?
Yes. Results are posted in the registry (first posted 8 Nov 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
Comparaison of Alpha-diversity of Sino-nasal Microbiota Before and After Treatment (Visit 1 and Visit 2) (time frame: At baseline (V1) and at end of the 30-day treatment period (V2)). 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 NCT05015530, which also lists 11 linked publications.
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 8 Nov 2024.