ClinicalTrials.gg
CompletedNCT05660382Updated May 12, 2026Results posted

Phase III Efficacy and Safety Study of Miconazole Oil for Otomycosis

A Phase 3 interventional study of Miconazole (2%) oil and mineral oil and Placebo in Otomycosis, sponsored by Hill Dermaceuticals, Inc.. Completed at 7 sites in United States. Per ClinicalTrials.gov, last updated 2026-05-12.

Sponsored by Hill Dermaceuticals, Inc. · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
112
Allocation
Randomized
Sex
All
01

Study summary

The goal of this clinical trial is to prove the that miconazole oil works well on fungal infections of the ears, by comparing the drug with a placebo. The researcher or the participants will not know if they are getting the drug or the placebo. The researcher will show the participants how to use the drug or placebo. After 14 days of using the drug or placebo, the participants will be examined by the researcher and graded on how well the drug worked on the ear(s) fungal infection. Participants will also be checked and asked for any bad side effects from the drug or the placebo.

Read the detailed description

The purpose of this study is to gather confirmatory data on the efficacy and safety of 2% miconazole oil after topical otic administration in subjects with otomycosis, and to fully establish evidence of efficacy for miconazole oil compared to the placebo (mineral oil). A 14-day regimen of twice-daily administration of 2% miconazole oil will be compared with the same treatment regimen using the placebo, mineral oil. This study is a randomized, double-blind, parallel-group study to be conducted at up to 8 study centers in the US. An estimated 90 male or female subjects with otomycosis will receive study drug. Subjects will be randomly assigned in a 1:1 ratio within study site to receive miconazole oil or mineral oil for 14 days [administered as 5 drops per ear at \~30 mg per drop instilled into the external ear canal of the ear(s) affected by otomycosis]. Both the subject and the investigator and study staff will be blinded as to the contents of the study drug.

The primary efficacy endpoint is:

  • Clinical Cure, defined as score of 0 for fungal elements, and for each of the signs/symptoms of pruritus, aural fullness and debris, at the Test of Cure visit.
02

Conditions studied

  • Otomycosis
03

In context

Lead sponsor

Hill Dermaceuticals, Inc. is the lead sponsor of 4 studies on the registry; none are open to participants now.

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

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
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

  1. Male or non-pregnant, non-lactating females
  2. Diagnosis of uncomplicated otomycosis of the external ear only, in the ear(s) that will be treated with study drug, with a score for fungal elements of 1 in each ear to be treated with study drug (see Section 7.4 for definitions of the scores for each of the otomycosis signs and symptoms). Subjects must also have the following signs and symptoms of otomycosis in the study ear: pruritus ≥2; debris ≥2; and aural fullness ≥2.
  3. General good health as determined by medical examination and medical history, and who are free of disease, including diabetes mellitus that is not well-controlled or that could interfere with the study
  4. Females of must have had a negative urine pregnancy test at Screening/Baseline and must agree to use an effective method of (as defined in Section 8.5) from Screening/Baseline up through the End of Treatment visit (see Section 6). Females of childbearing potential include any female who has experienced menarche and who has not undergone successful surgical sterilization (hysterectomy, bilateral tubal ligation or bilateral oophorectomy) or is not (defined as amenorrhea >12 consecutive months). Females who are using oral, implanted, or injectable contraceptive hormones, an intrauterine device (IUD), barrier methods (diaphragm, condoms, spermicide) to prevent pregnancy, practicing abstinence or where partner is sterile (e.g., vasectomy), should be considered to be of childbearing potential
  5. Subjects and/or their caregivers (as appropriate for the age of the subject) must have full legal capacity to volunteer
  6. Subjects and/or their caregivers must have completed an appropriately administered institutional review board (IRB)-approved and assent (as applicable) prior to any study related procedures
  7. Subjects and their caregivers (as applicable) must agree to comply with all requirements of the protocol
  8. For subjects with only one ear meeting all study eligibility criteria, the subject will be eligible for the study, and the ear meeting all eligibility criteria will be treated with study drug and considered to be the study ear for the purposes of study evaluations. In case of bilateral otomycosis in which at least one ear meet all study eligibility criteria, the subject will be eligible for the study, both ears may be treated with study drug provided that both ears have a score of 1 for fungal elements, and the worse ear will be considered to be the study ear for the purposes of study evaluations. If both ears meet study eligibility criteria and are determined by the investigator to have the same degree of infection at Screening/Baseline, the left ear will be considered to be the study ear for the purposes of study evaluations.

Exclusion criteria

Exclusion Criteria:

  1. Any other dermatoses or conditions of the ear that may interfere with the evaluation of otomycosis, including concomitant otic infections (including bacterial infection) that require antimicrobial treatment, disease that has spread beyond the external ear(s), or pre-existing skin atrophy of the affected ear(s) that will be treated with study drug
  2. Tympanostomy tube or perforated tympanic membrane in the ear(s) that will be treated with study drug
  3. History of prior surgery directly affecting and compromising the external auditory canal and/or tympanic membrane of the ear(s) that will be treated with study drug, except for prior tympanostomy tube(s) that have already been removed and completely healed
  4. Use of any topical medicated treatments for otomycosis within 14 days of study entry for the ear(s) that will be treated with study drug
  5. Use of any systemic antifungal therapy within 28 days of study entry, warfarin within 28 days of study entry, or immune-stimulating drugs within 28 days of study entry, or systemic within 3 months of study entry
  6. Fever of ≥100°F at study entry
  7. Recurrent otomycosis that has been unresponsive to previous antifungal treatment within the last 12 months
  8. Known to any of the components in the test formulation
  9. Participation in another investigative trial within 28 days of study entry.
Terms in these criteria, in plain language(8)

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.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

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.

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 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
112 participants (actual)

Study arms

  • Active comparator
    Active group

    Miconazole (2%) oil, administered as 5 drops per ear at \~30 mg per drop instilled into the external ear canal of the ear(s) affected by otomycosis, twice daily for 14 days.

    Drug: Miconazole (2%) oil and mineral oil

  • Placebo comparator
    Placebo group

    Mineral oil, administered as 5 drops per ear instilled into the external ear canal of the ear(s) affected by otomycosis, twice daily for 14 days.

    Other: Placebo

Interventions

  • DrugMiconazole (2%) oil and mineral oil

    Twice daily application, for 14 days.

    Also known as: Miconazole oil

  • OtherPlacebo

    Twice daily application, for 14 days

    Also known as: Mineral oil

06

What researchers measure

Primary outcomes

  1. Number of Participants With Clinical Cure

    A score of 0 for fungal elements, pruritus, debris, and aural fullness

    Time frame: 7 days after 14 days of Treatment

07

Results

Posted Apr 20, 2026

Participant flow

Participant flow — Overall Study
MilestoneActive GroupPlacebo Group
Started5656
Completed4946
Not completed710

Outcome measures

PrimaryNumber of Participants With Clinical Cure

A score of 0 for fungal elements, pruritus, debris, and aural fullness

Time frame:
7 days after 14 days of Treatment
Reported as:
Count of participants · Participants
Number of Participants With Clinical Cure
ParticipantsActive GroupPlacebo Group
Number of Participants With Clinical Cure1918

Adverse events

Collected over From Enrollment (Day 1) through Safety Follow Up Call, which occurred 14 days after the last day of treatment, which for subjects that complete the full 14-day treatment, the phone call should occur on Day 29 (+ 3 days). However, for subjects that do not complete the full treatment (less than 14 days), the follow-up call should occur 14 days from the last dosage.. Non-serious events are listed at a 1% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Active Group0/56 (0%)0/56 (0%)13/56 (23.2%)
Placebo Group0/56 (0%)0/56 (0%)12/56 (21.4%)
Most frequent other events
Showing 10 of 16
Most frequent other events
EventActive GroupPlacebo Group
Disease progressionGeneral disorders8/566/56
Ear discomfortEar and labyrinth disorders2/561/56
Ear painEar and labyrinth disorders0/561/56
Tympanic membrane disorderEar and labyrinth disorders1/560/56
Tympanic membrane perforationEar and labyrinth disorders0/561/56
Abdominal discomfortGastrointestinal disorders1/560/56
CheilitisGastrointestinal disorders1/560/56
ConstipationGastrointestinal disorders1/560/56
NauseaGastrointestinal disorders0/561/56
COVID-19Infections and infestations0/561/56

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Active GroupPlacebo GroupTotal
<=18 years235
Between 18 and 65 years272552
>=65 years272855
Sex: Female, Male
Sex: Female, Male(Participants)Active GroupPlacebo GroupTotal
Female162642
Male403070
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Active GroupPlacebo GroupTotal
American Indian or Alaska Native000
Asian011
Native Hawaiian or Other Pacific Islander000
Black or African American81321
White464187
More than one race000
Unknown or Not Reported213
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Active GroupPlacebo GroupTotal
Hispanic or Latino141024
Not Hispanic or Latino424688
Unknown or Not Reported000
Pruritus
Pruritus(Participants)Active GroupPlacebo GroupTotal
Mild000
Moderate464591
Severe101121
Debris
Debris(Participants)Active GroupPlacebo GroupTotal
Scant000
Moderate263460
Heavy302252
Presence of Fungal Elements
Presence of Fungal Elements(Participants)Active GroupPlacebo GroupTotal
Absent000
Present5656112
Aural Fullness
Aural Fullness(Participants)Active GroupPlacebo GroupTotal
Mild000
Moderate413980
Severe151732
08

Study locations

7 sites
  • Head and Neck Surgery Specialist
    Chula Vista, California 91910, United States
  • Advanced ENT & Allergy
    Louisville, Kentucky 40220, United States
  • Charleston ENT Associates, LLC
    North Charleston, South Carolina 29406, United States
  • Carolina ENT
    Orangeburg, South Carolina 29118, United States
  • Spartanburg / Greer ENT & Allergy
    Spartanburg, South Carolina 29303, United States
  • Alamo ENT Associates
    San Antonio, Texas 78258, United States
  • ENT Center Of Utah
    Salt Lake City, Utah 84102, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Mar 2023 to primary completion in Dec 2024, 21 months.

Results were first posted in Apr 2026, 1 year 3 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 13, 2022
First posted
Dec 21, 2022
StartActual
Mar 2, 2023
Primary completionActual
Dec 27, 2024
CompletionActual
Dec 27, 2024
Results first posted
Apr 20, 2026
Last update
May 12, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 12, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05660382
Lead sponsor
Hill Dermaceuticals, Inc.
Responsible party
Sponsor
First posted
Dec 21, 2022
Start date
Mar 2, 2023
Primary completion
Dec 27, 2024
Completion
Dec 27, 2024
Results posted
Apr 20, 2026
Last update
May 12, 2026

Oversight

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

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This study is completed, as verified in Apr 2026. You cannot join it, but the record below documents what was studied.

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