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Phase 3 Study of OTO-104 in Subjects With Unilateral Meniere's Disease

A Prospective, Randomized, Double Blind, Placebo-controlled, Multicenter, Phase 3 Efficacy and Safety Study of OTO-104 Given as a Single Intratympanic Injection in Subjects With Unilateral Meniere's Disease

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03664674
Enrollment
148
Registered
2018-09-10
Start date
2018-08-27
Completion date
2020-12-22
Last updated
2022-12-07

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

Conditions

Meniere Disease

Keywords

Meniere's Disease, Vertigo, Endolymphatic Hydrops, Labyrinth Diseases, Ear Diseases, Otorhinolaryngologic Diseases

Brief summary

The purpose of this study is to evaluate the effectiveness of OTO-104 for the treatment of Meniere's disease.

Interventions

Single intratympanic injection of 12 mg dexamethasone

DRUGPlacebo

Single intratympanic injection of placebo

Sponsors

Otonomy, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Intervention model description

Randomized, Double-blind, Placebo-controlled, Multicenter

Eligibility

Sex/Gender
ALL
Age
18 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

* Subject has a diagnosis of unilateral Meniere's disease by 1995 American Academy of Otolaryngology - Head and Neck Surgery (AAOHNS) criteria and reports active vertigo for the 2 months prior to the study lead-in period. * Subject has experienced active vertigo during the lead-in period. * Subject has documented asymmetric sensorineural hearing loss. * Subject agrees to maintain their current treatments for Meniere's disease while on-study.

Exclusion criteria

* Subject is pregnant or lactating. * Subject has a history of immunodeficiency disease. * Subject has a history of significant middle ear or inner ear surgery, or endolymphatic sac surgery in the affected ear. * Subject has a history of tympanostomy tubes with evidence of perforation or lack of closure. * Subject has a history of vestibular migraine. * Subject has used an investigational drug or device in the 3 months prior to screening. * Subject has previously been randomized to a clinical study of OTO-104.

Design outcomes

Primary

MeasureTime frameDescription
28-Day Average DVD at Week 12 (Month 3)3 monthsThe count of definitive vertigo days for Week 12 was determined during the 4-week period between Weeks 9 and 12. The 28-day average DVD was derived for each subject and visit by summing each subject's number of DVD counts within the 4-week interval, dividing by the number of completed diary days, and multiplying by 28.

Secondary

MeasureTime frameDescription
Impact of Vertigo Experience on Daily Activities at Week 12 (Month 3) - The Number of Days Sick at Home or Bedridden3 MonthsThe count of days sick at home or bedridden for subsequent intervals was determined during the 4-week period between each visit. The count of days sick at home or bedridden was computed as the sum of the days in the Sick at home and Bedridden categories for each 4-week interval and was standardized to 28 days by multiplying by 28 days and dividing by the number of non-missing diary entries.
Otoscopic Examination - Presence of Perforation in the Treated Ear at Week 12 (Month 3) Final Visit3 monthsEar examinations were done at every visit. One of the important safety endpoints was an observation of a perforation in the ear drum did not heal properly after the injection. Reported here are the Week 12 (Month 3) final visit.
Audiometry - Shift in Air-Bone Gap at 1000 Hz From Baseline to Week 12 (Month 3)Week 12 (Month 3)The number of subjects with a change in air-bone gap from Baseline to Week 12 (Month 3) from no impairment at baseline (\<= 10 dB) to impairment at Month 3 (\>10 dB) when measured at 1000 Hz.
Audiometry - Shift in Air-Bone Gap at 2000 Hz From Baseline to Week 12 (Month 3)Week 12 (Month 3)The number of subjects with a change in air-bone gap from Baseline to Week 12 (Month 3) from no impairment at baseline (\<= 10 dB) to impairment at Month 3 (\>10 dB) when measured at 2000 Hz.
Audiometry - Shift in Air-Bone Gap at 4000 Hz From Baseline to Week 12 (Month 3)Week 12 (Month 3)The number of subjects with a change in air-bone gap from Baseline to Week 12 (Month 3) from no impairment at baseline (\<= 10 dB) to impairment at Month 3 (\>10 dB) when measured at 4000 Hz.

Countries

Belgium, Germany, Italy, Poland, Spain, Turkey (Türkiye), United Kingdom, United States

Participant flow

Recruitment details

148 subjects were randomized and 148 subjects received study drug. The most common reason for screen failure was that there was not a sufficient number of definitive vertigo days in the 28-day lead-in period.

Pre-assignment details

In addition to meeting all screening visit inclusion criteria, potential subjects had to experience and record at least 4 and a maximum of 22 definitive vertigo day (DVD) during the 4-week lead-in period, where no intervention was administered. Also, the subject needed to complete at least 22 of 28 diary entries during this lead-in period. A DVD was defined as each day the subject recorded a vertigo episode lasting at least 20 minutes corresponding to a vertigo score of 2 or more.

Participants by arm

ArmCount
OTO-104
OTO-104: Single intratympanic injection of 12 mg dexamethasone
73
Placebo
Placebo: Single intratympanic injection of placebo
75
Total148

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event11
Overall StudyPhysician Decision01
Overall StudyWithdrawal by Subject20

Baseline characteristics

CharacteristicOTO-104PlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
22 Participants18 Participants40 Participants
Age, Categorical
Between 18 and 65 years
51 Participants57 Participants108 Participants
Age, Continuous57.0 years57.0 years57.0 years
Duration of Meniere's disease
11-15 years
0 Participants4 Participants4 Participants
Duration of Meniere's disease
>15 years
3 Participants5 Participants8 Participants
Duration of Meniere's disease
<5 years
61 Participants53 Participants114 Participants
Duration of Meniere's disease
6-10 years
9 Participants13 Participants22 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants1 Participants3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
71 Participants73 Participants144 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants3 Participants3 Participants
Race (NIH/OMB)
White
73 Participants71 Participants144 Participants
Region of Enrollment
Belgium
3 participants6 participants9 participants
Region of Enrollment
Germany
11 participants4 participants15 participants
Region of Enrollment
Italy
7 participants5 participants12 participants
Region of Enrollment
Poland
31 participants29 participants60 participants
Region of Enrollment
Spain
3 participants1 participants4 participants
Region of Enrollment
Turkey
3 participants8 participants11 participants
Region of Enrollment
United Kingdom
7 participants9 participants16 participants
Region of Enrollment
United States
8 participants13 participants21 participants
Sex: Female, Male
Female
44 Participants44 Participants88 Participants
Sex: Female, Male
Male
29 Participants31 Participants60 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 730 / 75
other
Total, other adverse events
26 / 7327 / 75
serious
Total, serious adverse events
2 / 732 / 75

Outcome results

Primary

28-Day Average DVD at Week 12 (Month 3)

The count of definitive vertigo days for Week 12 was determined during the 4-week period between Weeks 9 and 12. The 28-day average DVD was derived for each subject and visit by summing each subject's number of DVD counts within the 4-week interval, dividing by the number of completed diary days, and multiplying by 28.

Time frame: 3 months

ArmMeasureValue (LEAST_SQUARES_MEAN)
OTO-104 Intent to Treat28-Day Average DVD at Week 12 (Month 3)2.869 DVD
Placebo Intent to Treat28-Day Average DVD at Week 12 (Month 3)3.577 DVD
p-value: 0.31295% CI: [-0.648, 0.207]Regression, Linear
Secondary

Audiometry - Shift in Air-Bone Gap at 1000 Hz From Baseline to Week 12 (Month 3)

The number of subjects with a change in air-bone gap from Baseline to Week 12 (Month 3) from no impairment at baseline (\<= 10 dB) to impairment at Month 3 (\>10 dB) when measured at 1000 Hz.

Time frame: Week 12 (Month 3)

Population: Subjects that had no impairment at the Baseline visit (air-bone gap \<= 10 dB)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
OTO-104 Intent to TreatAudiometry - Shift in Air-Bone Gap at 1000 Hz From Baseline to Week 12 (Month 3)5 Participants
Placebo Intent to TreatAudiometry - Shift in Air-Bone Gap at 1000 Hz From Baseline to Week 12 (Month 3)7 Participants
Secondary

Audiometry - Shift in Air-Bone Gap at 2000 Hz From Baseline to Week 12 (Month 3)

The number of subjects with a change in air-bone gap from Baseline to Week 12 (Month 3) from no impairment at baseline (\<= 10 dB) to impairment at Month 3 (\>10 dB) when measured at 2000 Hz.

Time frame: Week 12 (Month 3)

Population: Subjects that had no impairment at the Baseline visit (air-bone gap \<= 10 dB)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
OTO-104 Intent to TreatAudiometry - Shift in Air-Bone Gap at 2000 Hz From Baseline to Week 12 (Month 3)4 Participants
Placebo Intent to TreatAudiometry - Shift in Air-Bone Gap at 2000 Hz From Baseline to Week 12 (Month 3)4 Participants
Secondary

Audiometry - Shift in Air-Bone Gap at 4000 Hz From Baseline to Week 12 (Month 3)

The number of subjects with a change in air-bone gap from Baseline to Week 12 (Month 3) from no impairment at baseline (\<= 10 dB) to impairment at Month 3 (\>10 dB) when measured at 4000 Hz.

Time frame: Week 12 (Month 3)

Population: Subjects that had no impairment at the Baseline visit (air-bone gap \<= 10 dB)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
OTO-104 Intent to TreatAudiometry - Shift in Air-Bone Gap at 4000 Hz From Baseline to Week 12 (Month 3)2 Participants
Placebo Intent to TreatAudiometry - Shift in Air-Bone Gap at 4000 Hz From Baseline to Week 12 (Month 3)9 Participants
Secondary

Impact of Vertigo Experience on Daily Activities at Week 12 (Month 3) - The Number of Days Sick at Home or Bedridden

The count of days sick at home or bedridden for subsequent intervals was determined during the 4-week period between each visit. The count of days sick at home or bedridden was computed as the sum of the days in the Sick at home and Bedridden categories for each 4-week interval and was standardized to 28 days by multiplying by 28 days and dividing by the number of non-missing diary entries.

Time frame: 3 Months

ArmMeasureValue (MEAN)Dispersion
OTO-104 Intent to TreatImpact of Vertigo Experience on Daily Activities at Week 12 (Month 3) - The Number of Days Sick at Home or Bedridden0.998 daysStandard Deviation 2.1521
Placebo Intent to TreatImpact of Vertigo Experience on Daily Activities at Week 12 (Month 3) - The Number of Days Sick at Home or Bedridden1.643 daysStandard Deviation 2.5783
Secondary

Otoscopic Examination - Presence of Perforation in the Treated Ear at Week 12 (Month 3) Final Visit

Ear examinations were done at every visit. One of the important safety endpoints was an observation of a perforation in the ear drum did not heal properly after the injection. Reported here are the Week 12 (Month 3) final visit.

Time frame: 3 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
OTO-104 Intent to TreatOtoscopic Examination - Presence of Perforation in the Treated Ear at Week 12 (Month 3) Final Visit0 Participants
Placebo Intent to TreatOtoscopic Examination - Presence of Perforation in the Treated Ear at Week 12 (Month 3) Final Visit0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026