Ivacaftor for Chronic Sinusitis

Overseen By Norma Miller, RN

Age: 18+

Sex: Any

Travel: May Be Covered

Time Reimbursement: Varies

Trial Phase: Phase < 1

Recruiting

Sponsor: University of Alabama at Birmingham

Must not be taking: CP3A inhibitors

Disqualifiers: Asthma, Transplantation, Immunodeficiency, others

Breakthrough Therapy

Approved in 3 Jurisdictions

Trial Summary

What is the purpose of this trial?

The purpose of this pilot study is to explore wither ivacaftor in refractory CRS patients will demonstrate safety and tolerability; restore CFTR-mediated Cl- secretions as measured by EDSPD testing; produce detectable improvements in validated measures of CRS including the SNOT-22 questionnaire, Lund-MacKay CT scan grading, and Lund-Kennedy endoscopic scores; and provide beneficial effects on readily measured markers of sinonasal inflammation and infection (IP-10, IL-8, and Pseudomonas CFUs).

Do I need to stop my current medications to join the trial?

You may need to stop taking certain medications if they are moderate or strong CP3A inhibitors, as these are not allowed in the trial. For other medications, the trial protocol does not specify, so it's best to discuss with the trial team.

What data supports the effectiveness of the drug Ivacaftor for chronic sinusitis?

Research indicates that Ivacaftor, a drug used for cystic fibrosis, showed a positive effect on sinonasal pathology in a patient with cystic fibrosis, leading to the resolution of sinus opacification and decreased symptoms. This suggests potential benefits for chronic sinusitis, although more research is needed. ^{1 2 3 4 5}

What makes the drug Ivacaftor unique for treating chronic sinusitis?

Ivacaftor is unique because it targets the underlying cause of cystic fibrosis by improving the function of a specific protein, which is different from typical treatments for chronic sinusitis that usually focus on relieving symptoms rather than addressing the root cause. ^{6 7 8 9 10}

Research Team

Bradford Woodworth, MD

Principal Investigator

University of Alabama at Birmingham

Eligibility Criteria

This trial is for adults with chronic sinusitis who've had sinus surgery, can undergo specific nasal tests, and have a recent CT scan showing sinus issues. They must not be pregnant or breastfeeding, have normal liver and kidney function, and not be on certain other medications.

Inclusion Criteria

I had surgery that exposed my maxillary and ethmoid sinuses.

You have tested positive for certain types of bacteria within the last 30 days.

I have taken a pregnancy test within the last 3 days and it was negative.

Exclusion Criteria

Your blood has high levels of creatinine.

I am currently on medication that strongly affects my liver's ability to process drugs.

I have had an organ or bone marrow transplant.

Trial Timeline

Screening

Participants are screened for eligibility to participate in the trial

2 weeks

1 visit (in-person)

Treatment

Participants receive standard of care treatment with or without ivacaftor for 30 days

4 weeks

3 visits (in-person) on Day 1, Day 14, and Day 30

Follow-up

Participants are monitored for safety and effectiveness after treatment

4 weeks

1 visit (in-person)

Treatment Details

Interventions

• Ivacaftor (CFTR Potentiator)
• Standard of Care Treatment (Drug)

Trial Overview The study is testing Ivacaftor's safety and effectiveness in treating chronic sinusitis compared to standard care. It will check if the drug improves chloride secretion in the sinuses, reduces inflammation/infection markers, and betters disease-specific quality of life scores.

Participant Groups

Group I: standard of care treatment + ivacaftor Experimental Treatment 2 Interventions

topical nasal steroid spray and culture-directed antibiotics + ivacaftor 150 mg tablet

Group II: standard of care treatment Placebo Group 1 Intervention

topical nasal steroid spray and culture-directed antibiotics

Ivacaftor is already approved in Canada for the following indications:

Approved in Canada as Kalydeco for:

• Cystic fibrosis in patients aged 4 months and older who have one mutation in the CFTR gene that is responsive to ivacaftor

Who Is Running the Clinical Trial?

University of Alabama at Birmingham

Lead Sponsor

Trials

1,677

Recruited

2,458,000+

National Heart, Lung, and Blood Institute (NHLBI)

Collaborator

Trials

3,987

Recruited

47,860,000+

Findings from Research

Ivacaftor (KALYDECO™) has been shown to enhance the function of various mutant CFTR proteins that are associated with cystic fibrosis, particularly those with mild defects in processing or channel conductance, based on in vitro studies using Fischer rat thyroid cells.

This study suggests that ivacaftor could be a versatile treatment option for patients with different CFTR mutations, potentially allowing for better patient stratification in clinical studies to assess its benefits.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Effect of ivacaftor on CFTR forms with missense mutations associated with defects in protein processing or function. Van Goor, F., Yu, H., Burton, B., et al.[2022]

Ivacaftor significantly improves lung function and weight in patients with Cystic Fibrosis who have a type III mutation, by enhancing CFTR channel activity and chloride transport.

In a case report of a 17-year-old patient, ivacaftor led to complete resolution of sinus opacification and reduced sinonasal symptoms after 5 months, suggesting potential benefits for sinonasal health in Cystic Fibrosis patients.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Ivacaftor and sinonasal pathology in a cystic fibrosis patient with genotype deltaF508/S1215N. Vreede, CL., Berkhout, MC., Sprij, AJ., et al.[2016]

In a study of 43 adult cystic fibrosis patients, treatment with elexacaftor-tezacaftor-ivacaftor led to significant improvements in sinonasal symptoms, as measured by the SNOT-22 questionnaire, with scores decreasing from 34.8 to 24.4 (p = 0.000003).

Patients who had previously used other CFTR modulators experienced even greater improvements in both sinonasal and respiratory symptoms, indicating that prior treatment may enhance the efficacy of this new therapy.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Effect of highly effective modulator treatment on sinonasal symptoms in cystic fibrosis. DiMango, E., Overdevest, J., Keating, C., et al.[2022]

The ciprofloxacin- and ivacaftor-releasing biodegradable sinus stent (CISS) demonstrated sustained drug release over 21 days without an initial burst, ensuring prolonged antibiotic action.

In vitro tests showed that the CISS significantly reduced biofilm formation of Pseudomonas aeruginosa compared to bare stents and controls, indicating its potential effectiveness in preventing bacterial infections in sinus treatments.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

In-vitro evaluation of a ciprofloxacin- and ivacaftor-coated sinus stent against Pseudomonas aeruginosa biofilms. Cho, DY., Lim, DJ., Mackey, C., et al.[2020]

In a study of 34 individuals with cystic fibrosis, treatment with elexacaftor-tezacaftor-ivacaftor (ELX/TEZ/IVA) led to rapid improvement in sinonasal symptoms within just 7 days, with effects lasting for at least 180 days.

Objective measures, such as endoscopic findings and CT scans, showed significant improvements in nasal polyps and sinus health, indicating that ELX/TEZ/IVA effectively addresses chronic rhinosinusitis associated with cystic fibrosis.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Elexacaftor-Tezacaftor- Ivacaftor improves sinonasal outcomes in cystic fibrosis. Stapleton, AL., Kimple, AJ., Goralski, JL., et al.[2023]

A 75-year-old male patient with Aspergillus flavus-induced chronic hypertrophic pachymeningitis was successfully treated with itraconazole (ITCZ), showing that it can be effective for this condition, especially after other antifungal treatments failed.

Pharmacokinetic analysis revealed that despite lower serum levels of ITCZ compared to healthy adults, the successful treatment was likely due to increased distribution to tissues from the unbound form of the drug, highlighting the importance of monitoring albumin levels in evaluating drug concentrations.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Serum itraconazole and hydroxyitraconazole concentrations and interaction with digoxin in a case of chronic hypertrophic pachymenigitis caused by Aspergillus flavus. Mochizuki, M., Murase, S., Takahashi, K., et al.[2019]

In a study of 10 adults with HIV and talaromycosis, the use of efavirenz significantly reduced the exposure levels of itraconazole and its active metabolite, hydroxyitraconazole, by 86% and 84%, respectively, indicating a strong drug-drug interaction.

Despite the administration of itraconazole, the trough concentrations were below the recommended therapeutic level when taken with efavirenz, suggesting that this combination may compromise the effectiveness of talaromycosis treatment and requires further investigation.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Drug-drug interaction between itraconazole capsule and efavirenz in adults with HIV for talaromycosis treatment. Kaewpoowat, Q., Chaiwarith, R., Yasri, S., et al.[2021]

In a study involving 16 patients with advanced solid tumors, the novel docetaxel tablet formulation ModraDoc006, when taken with ritonavir, showed that a high-fat meal slightly increased docetaxel exposure but decreased ritonavir levels, indicating that food intake can influence drug absorption.

Despite these changes, the overall effect of a high-fat meal on docetaxel exposure was minimal, suggesting that a light meal would likely not impact the treatment's effectiveness, with the most common side effects being mild diarrhea and fatigue.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Effect of Food on the Pharmacokinetics of the Oral Docetaxel Tablet Formulation ModraDoc006 Combined with Ritonavir (ModraDoc006/r) in Patients with Advanced Solid Tumours. Vermunt, MAC., de Weger, VA., Janssen, JM., et al.[2021]

Itraconazole (ICZ) effectively inhibits the production of the inflammatory chemokine CXCL10 in oral fibroblasts stimulated by TNF-α, suggesting its potential as an anti-inflammatory treatment for Th1-mediated oral inflammatory diseases.

Unlike fluconazole (FLZ), ICZ also reduces the mRNA levels of other chemokines (CXCL9 and CXCL11) and inhibits the phosphorylation of c-JUN, a signaling protein involved in CXCL10 production, highlighting its unique mechanism of action in modulating inflammation.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Itraconazole inhibits TNF-α-induced CXCL10 expression in oral fibroblasts. Ohta, K., Ishida, Y., Fukui, A., et al.[2016]

A new solid dispersion formulation of docetaxel, combined with a pharmacokinetic booster (ritonavir), showed similar pharmacokinetic parameters to the traditional docetaxel premix solution in a Phase I clinical trial, indicating it can effectively improve oral bioavailability.

ModraDoc001 15 mg capsules demonstrated advantages such as lower inter-individual variability in drug exposure and improved dosing accuracy, making it a potentially safer and more reliable option for chronic oral chemotherapy.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Pharmaceutical development and preliminary clinical testing of an oral solid dispersion formulation of docetaxel (ModraDoc001). Moes, JJ., Koolen, SL., Huitema, AD., et al.[2018]

References

1. Netherlands pubmed.ncbi.nlm.nih.gov

Effect of ivacaftor on CFTR forms with missense mutations associated with defects in protein processing or function. [2022]

2. Netherlands pubmed.ncbi.nlm.nih.gov

Ivacaftor and sinonasal pathology in a cystic fibrosis patient with genotype deltaF508/S1215N. [2016]

3. Netherlands pubmed.ncbi.nlm.nih.gov

Effect of highly effective modulator treatment on sinonasal symptoms in cystic fibrosis. [2022]

4. United States pubmed.ncbi.nlm.nih.gov

In-vitro evaluation of a ciprofloxacin- and ivacaftor-coated sinus stent against Pseudomonas aeruginosa biofilms. [2020]

5. Netherlands pubmed.ncbi.nlm.nih.gov

Elexacaftor-Tezacaftor- Ivacaftor improves sinonasal outcomes in cystic fibrosis. [2023]

6. Japan pubmed.ncbi.nlm.nih.gov

Serum itraconazole and hydroxyitraconazole concentrations and interaction with digoxin in a case of chronic hypertrophic pachymenigitis caused by Aspergillus flavus. [2019]

7. England pubmed.ncbi.nlm.nih.gov

Drug-drug interaction between itraconazole capsule and efavirenz in adults with HIV for talaromycosis treatment. [2021]

8. New Zealand pubmed.ncbi.nlm.nih.gov

Effect of Food on the Pharmacokinetics of the Oral Docetaxel Tablet Formulation ModraDoc006 Combined with Ritonavir (ModraDoc006/r) in Patients with Advanced Solid Tumours. [2021]

9. Denmark pubmed.ncbi.nlm.nih.gov

Itraconazole inhibits TNF-α-induced CXCL10 expression in oral fibroblasts. [2016]

10. Netherlands pubmed.ncbi.nlm.nih.gov

Pharmaceutical development and preliminary clinical testing of an oral solid dispersion formulation of docetaxel (ModraDoc001). [2018]