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Status unknownNCT05269030Updated May 11, 2022

Ivermectin Nasal Drops in Post COVID-19 Parosmia

A Phase 2 interventional study of Ivermectin Topical and Budesonide Nasal in Parosmia, sponsored by Menoufia University. Status unknown at 1 site in Egypt. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-05-11.

Sponsored by Menoufia University · Phase 2, Interventional, and Treatment

The sponsor has not verified this record recently (last verified May 2022), so the status shown — last known as Not yet recruiting — may be out of date.
Phase
Phase 2
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
18 Years and older
Sex
All
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Study summary

The current study will be a pilot study for a randomized controlled trial conducted on patients recruited from the outpatient clinic of the Otorhinolaryngology Department, Menoufia Faculty of Medicine To evaluate the effect of ivermectin nasal drops in the treatment of post COVID 19 parosmia

Read the detailed description

The current study will be a pilot study for a randomized controlled trial conducted on 60 patients recruited from the outpatient clinic of the Otorhinolaryngology Department, Menoufia Faculty of Medicine after approval of the institutional review board and taking informed written consent from every patient before participation in the study.

To be included in the study, patients should be more than 18 years old, have a history of COVID 19 infection more than three months ago as confirmed by PCR test, have a post COpost-COVIDVID parosmia, and have no history of systemic steroid administration over the last one month. History of previous nasal surgery, underlying systemic diseases (like diabetes mellitus, hypertension, or autoimmune diseases), and hypersensitivity to Ivermectin were the exclusion criteria for this study.

Patients of the study will be randomly and equally distributed between case and control groups using block randomization methods using 4 blocks each comprising 4 patients with 6 patterns for every block one of which was selected randomly using random numbers generated by Excel program. Case group will receive a 4 weeks course of Ivermectin 1% in a dose of two drops per each nostril twice daily. Control group will receive a 4 weeks course of local steroids in the form of budesonide (64 µg per puff in a dose of 1 puff for each nostril twice daily.

Assessment protocol:

Patients of the study will be assessed before and at the end of the treatment protocol with history taking to define the inclusion and exclusion criteria. Endoscopic examination of the nasal cavity will be performed to exclude any other intranasal pathology. The degree of parosmia will be assessed using a visual analog scale before and four weeks after treatment.

Outcome measures:

Primary outcome measures will include a comparison between the pre and post treatment values of visual analog scales of parosmia, and a comparison between case and control groups regarding the post treatment results whether no improvement, partial improvement, or complete improvement. Secondary outcome measures will include assessment of the side effects of Ivermectin nasal drops among the case group.

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Conditions studied

  • Parosmia

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Keywords

  • Ivermectin
  • Olfactory dysfunction
  • Parosmia
  • Post COVID-19 Parosmia
03

In context

Olfaction Disorders

70 studies on the registry are indexed under Olfaction Disorders; 18 are open to participants now.

This study's planned enrollment of 60 is close to the median of 60 across 49 interventional studies indexed under Olfaction Disorders.

Browse Olfaction Disorders studies →

Lead sponsor

Menoufia University is the lead sponsor of 199 studies on the registry; 54 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients should be more than 18 years old,
  • Patients having a history of COVID 19 infection more than three months ago as confirmed by PCR test,
  • Patients having a post COVID parosmia,
  • Patients having no history of systemic administration over the last one month.

Exclusion criteria

Exclusion Criteria:

  • History of previous nasal surgery,
  • Underlying systemic diseases (like diabetes mellitus, hypertension, or diseases),
  • to Ivermectin.
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    Case group

    The patients will receive ivermectin nasal drops

    Drug: Ivermectin Topical

  • Active comparator
    Control group

    The patients will receive local steroid spray

    Drug: Budesonide Nasal

Interventions

  • DrugIvermectin Topical

    Ivermectin 1% in a dose of two drops per nostril twice daily.

  • 64 µg per puff in a dose of 1 puff for each nostril twice daily.

06

What researchers measure

Primary outcomes

  1. Comparison between the pre and post treatment values

    Comparison between the pre and post-treatment values of visual analog scale values for post-COVD-19 parosmia. The values range from 0 to 10 with 10 indicating severe parosmia

    Time frame: After one month of treatment

  2. Comparison between case and control groups regarding the post treatment results

    Comparison between case and control groups regarding the post treatment results whether no improvement, partial improvement, or complete improvement

    Time frame: After one month of treatment

Secondary outcomes

  1. Assessment of the side effects of Ivermectin nasal drops

    Assessment of the side effects of Ivermectin nasal drops among the case group

    Time frame: After one month of treatment

07

Study locations

1 site
  • Menoufia Faculty of Medicine
    Shibīn Al Kawm, Menoufia 32511, Egypt
08

References and documents

Publications

  • Stenner M, Vent J, Huttenbrink KB, Hummel T, Damm M. Topical therapy in anosmia: relevance of steroid-responsiveness. Laryngoscope. 2008 Sep;118(9):1681-6. doi: 10.1097/MLG.0b013e31817c1368. PubMed 18677278 ↗
  • Butowt R, von Bartheld CS. Anosmia in COVID-19: Underlying Mechanisms and Assessment of an Olfactory Route to Brain Infection. Neuroscientist. 2021 Dec;27(6):582-603. doi: 10.1177/1073858420956905. Epub 2020 Sep 11. PubMed 32914699 ↗
  • Gane SB, Kelly C, Hopkins C. Isolated sudden onset anosmia in COVID-19 infection. A novel syndrome? Rhinology. 2020 Jun 1;58(3):299-301. doi: 10.4193/Rhin20.114. PubMed 32240279 ↗
  • Graziadei PP, Levine RR, Monti Graziadei GA. Plasticity of connections of the olfactory sensory neuron: regeneration into the forebrain following bulbectomy in the neonatal mouse. Neuroscience. 1979;4(6):713-27. doi: 10.1016/0306-4522(79)90002-2. No abstract available. PubMed 481748 ↗
  • Hornung DE, Mozell MM. Factors influencing the differential sorption of odorant molecules across the olfactory mucosa. J Gen Physiol. 1977 Mar;69(3):343 -61. doi: 10.1085/jgp.69.3.343. PubMed 300427 ↗
  • Conterno LO, Turchi MD, Correa I, Monteiro de Barros Almeida RA. Anthelmintic drugs for treating ascariasis. Cochrane Database Syst Rev. 2020 Apr 14;4(4):CD010599. doi: 10.1002/14651858.CD010599.pub2. PubMed 32289194 ↗
  • Kahlenberg JM, Kaplan MJ. Little peptide, big effects: the role of LL-37 in inflammation and autoimmune disease. J Immunol. 2013 Nov 15;191(10):4895-901. doi: 10.4049/jimmunol.1302005. PubMed 24185823 ↗
  • Heidary F, Gharebaghi R. Ivermectin: a systematic review from antiviral effects to COVID-19 complementary regimen. J Antibiot (Tokyo). 2020 Sep;73(9):593-602. doi: 10.1038/s41429-020-0336-z. Epub 2020 Jun 12. PubMed 32533071 ↗
  • Errecalde J, Lifschitz A, Vecchioli G, Ceballos L, Errecalde F, Ballent M, Marin G, Daniele M, Turic E, Spitzer E, Toneguzzo F, Gold S, Krolewiecki A, Alvarez L, Lanusse C. Safety and Pharmacokinetic Assessments of a Novel Ivermectin Nasal Spray Formulation in a Pig Model. J Pharm Sci. 2021 Jun;110(6):2501-2507. doi: 10.1016/j.xphs.2021.01.017. Epub 2021 Jan 23. PubMed 33493479 ↗
  • Aref ZF, Bazeed SEES, Hassan MH, Hassan AS, Rashad A, Hassan RG, Abdelmaksoud AA. Clinical, Biochemical and Molecular Evaluations of Ivermectin Mucoadhesive Nanosuspension Nasal Spray in Reducing Upper Respiratory Symptoms of Mild COVID-19. Int J Nanomedicine. 2021 Jun 15;16:4063-4072. doi: 10.2147/IJN.S313093. eCollection 2021. PubMed 34163159 ↗

Individual participant data

Plan to share: Yes — Data will be available on request from the authors

Supporting information: Study protocol, Statistical analysis plan, Clinical study report

Time frame: After publication of the study

Access criteria: On approval of the authors

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 11, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05269030
Responsible party
Ahmad Mahmoud Hamdan (Principal Investigator, Menoufia University) — Principal investigator
First posted
Mar 7, 2022
Start date
Jul 2022 (estimated)
Primary completion
Mar 2023 (estimated)
Completion
Mar 2023 (estimated)
Last update
May 11, 2022

Study contacts

Ahmad Hamdan, MD
Contact
Ahmed.Hamdan@med.menofia.edu.eg
00201008993175

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in May 2022. You cannot join it, but the record below documents what was studied.

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