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Effects of topical and oral corticosteroids on sinonasal microbiome

The clinical and microbiome outcomes of medical treatments in chronic rhinosinusitis: a double-blinded, randomised placebo-controlled trial

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12619001398190
Enrollment
50
Registered
2019-10-14
Start date
2016-10-25
Completion date
2018-11-02
Last updated
2019-10-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

The purpose of this study to enhance our understanding of the interactions between medications and the bacterial populations (which together comprise the microbiome) in the nose and sinuses. Our hypothesis is that both oral and topical steroids will differentially alter bacterial profiles in patients with CRS to influencing the clinical outcomes in patients. We will target patients in the pre-operative clinic presenting with symptoms consistent with a diagnosis of CRS. Patients who require medical management of their symptoms and consent to participate will be randomised to one of three groups, each of which consists of one of the standard treatment regimens for the pre-operative medical management of CRS (oral steroid or topical steroid or oral antibiotic).

Interventions

A randomised double-blinded placebo-controlled trial in patients with chronic rhinosinusitis. Group 1 receives oral unlabelled Panafcortelone (Prednisolone, Aspen Pharmacare, St Leonards, NSW), in a tapering dose (25mg/day for 1 week then 12.5mg/day for 1 week then 12.5 mg every other day for 1 week) + 200ml isotonic saline with water for injection (2ml respules) as placebo delivered intranasally 2 times a day + oral placebo for antibiotic 2 tablets on day one, followed by one tablet once dai

A randomised double-blinded placebo-controlled trial in patients with chronic rhinosinusitis. Group 1 receives oral unlabelled Panafcortelone (Prednisolone, Aspen Pharmacare, St Leonards, NSW), in a tapering dose (25mg/day for 1 week then 12.5mg/day for 1 week then 12.5 mg every other day for 1 week) + 200ml isotonic saline with water for injection (2ml respules) as placebo delivered intranasally 2 times a day + oral placebo for antibiotic 2 tablets on day one, followed by one tablet once daily for 3 weeks Group 2 receives topical steroid Pulmicort ® (Budesonide, 0.5mg/2ml respules) washes of the nasal cavities and sinuses delivered intranasally 2 times a day in 200 ml isotonic saline + oral placebo for antibiotic 2 tablets on day one, followed by one tablet once daily + placebo for oral steroid as mentioned above in tapering doses for three weeks Group 3 receives oral antibiotic, Doxylin® (Doxycycline, antibiotic) tablets 2 tablets on day one (200mg), followed by one tablet (100mg) once daily + placebo for steroid in tapering doses as mentioned above + 200ml isotonic saline with water for injection (2ml respules) as placebo delivered intranasally 2 times a day for 3 weeks. The placebo oral medication is prepared by Professional Pharmaceutical Packaging Pty, Ltd (VIC, Australia) and the placebo for Pulmicort respules was 2mL water for injections (Pfizer, Brooklyn, USA). The patients are asked to maintain a diary for the daily documentation of treatment taken and also asked to bring back the medicine bottles and the used vials back to the pharmacy. The three sets of treatments (one active and two placebo) are taken simultaneously by the patients. For example, in the group 1, the day 1 of the oral placebo for oral antibiotic is day 1 of week 1 for the panafcortelone. The Placebos consists of gelatin capsules and microcrystalline cellulose USP/NF United States Pharmacopeia (USP) and the National Formulary (NF) Both placebos are prepared by level filling the preformed gelatin capsules. This is estimated at 300mg per capsule.

Sponsors

Associate Professor Psaltis
Lead SponsorIndividual

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used) (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Selection/inclusion criteria: Patients who meet ALL of the following criteria will be offered inclusion in the study: (1) Have symptoms and signs of CRS and require medical management AND (2) are over 18 years of age AND (3) are able to give written informed consent AND (4) are local patients who will be returning to this centre for follow-up care

Exclusion criteria

Exclusion criteria: (1) Requirement for a specific corticosteroid or antibiotic treatment based on symptomatology (2) allergy to steroids (3) pregnant or breastfeeding (4) diabetes (5) on other CYP450 inhibiting drugs (e.g. ketoconazole, ritonavir, atazanavir, clarithromycin, indinavir, itraconazole, nefazodone, nelfinavir, saquinavir and telithromycin) (6) liver disease

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026