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A Study to Assess ASP0598 Otic Solution Following Topical Application in the Ear in Subjects With Chronic Tympanic Membrane Perforation (CTMP)

A Phase 1/2, Randomized, Placebo-controlled Study to Assess the Safety, Tolerability, Efficacy, and Pharmacokinetics of ASP0598 Otic Solution Following Topical Application Into the Ear in Subjects With Chronic Tympanic Membrane Perforation (CTMP)

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04305184
Enrollment
36
Registered
2020-03-12
Start date
2020-09-10
Completion date
2023-01-24
Last updated
2024-11-25

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

Conditions

Chronic Tympanic Membrane Perforation

Keywords

ASP0598

Brief summary

The primary purpose of this study was to evaluate the safety and tolerability of ASP0598 Otic Solution. This study also evaluated the efficacy of ASP0598 otic solution.

Detailed description

This study consisted of a dose escalation (single ascending dose - SAD and multiple ascending dose- MAD) and dose expansion (single dose expansion and/or multiple dose expansion). Dose escalation consisted of up to 4 cohorts for single ascending dose (SAD) and up to 2 cohorts for multiple ascending dose (MAD) with different dose levels. For SAD, after randomization on Day 1, participants received ASP0598 Otic Solution or placebo administration into the affected ear. Participants returned to the site on days 2, 3, 8, 15, 29, and 57 \[end of study (EOS)\]. Day 3 evaluations were only performed for cohorts 1, 2 and 3. For MAD, after randomization on Day 1, participants received ASP0598 Otic Solution or placebo administration into the affected ear and received additional treatments into the same ear on Days 15 and 29. Participants returned to the investigative site on Days 8, 15, 22, 29, 36, 57, and 85 (EOS). Dose expansion was based on the safety and efficacy results from an interim analysis. An interim analysis was conducted after completion of SAD and again after completion of MAD. The single and multiple dose expansion parts of the study were not opened following review of safety and efficacy results of SAD and MAD parts of the study by the DMC per the Interim Analysis Plan.

Interventions

DRUGASP0598

ASP0598 Otic solution was administered onto the Tympanic Membrane (TM) through the external auditory canal via syringe.

OTHERPlacebo

Placebo matched to ASP0598 Otic solution was administered onto the TM through the external auditory canal via syringe.

Sponsors

Astellas Pharma Global Development, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Subject has chronic tympanic membrane perforation (CTMP) documented as persisting longer than 3 months. * A female subject is eligible to participate if she is not pregnant and at least one of the following conditions applies: * Not a woman of childbearing potential (WOCBP) OR * WOCBP who agrees to follow the contraceptive guidance starting at screening and for at least 28 days after investigational product (IP) application. * Female subject must agree not to breastfeed starting at drug application on Day 1 and for at least 28 days after IP application. * Female subject must not donate ova starting on Day 1 and for at least 28 days after investigational product (IP) application. * A male subject with female partner(s) of child-bearing potential must agree to use contraception starting on Day 1 and for at least 28 days after IP application. * A male subject must not donate sperm starting on Day 1 and for at least 28 days after IP application. * Male subject with a pregnant or breastfeeding partner(s) must agree to remain abstinent or use a condom from Day 1 and for at least 28 days after IP application. * Subject must be willing and able to comply with the study requirements including refraining from using prohibited concomitant medications. * Subject agrees not to participate in another interventional study during the study period.

Exclusion criteria

* Subject has one of following conditions that may affect the ipsilateral side of the ear with chronic tympanic membrane perforation (CTMP): * Perforation involving 3 or more quadrants. * Pin hole perforation (only for the expansion cohort). * Presence of tympanosclerosis adjacent to the perforation. * Perforation involves malleus erosion. * Absent malleus. * Marginal perforation (i.e., involving the annulus or exposing the handle of malleus). * Tympanic membrane perforation (TMP) caused by electric/slag/blast/burn injury. * Post radiated TMP. * History of tympanic membrane repair by any type of live tissue. * Active otorrhea or active treatment for otorrhea within the last 3 months prior to Screening. * Bellucci otorrhea grade 3 or above. * Active external ear canal inflammation (otitis externa, dermatitis) or within the last 3 months prior to Screening. * Active diagnosis of Eustachian Tube dysfunction or diagnosis within 6 months prior to Screening. * Craniofacial abnormalities, History of head and neck surgery within the last 3 months prior to Screening, history of radiation to head and neck. * Recent (within 2 weeks) diagnosis of upper respiratory tract infection. * Presence or history of cholesteatoma. * Presence of pars-flaccida or pars tensa retraction or adhesion. * Presence or history of tumors of the middle or external ear. * Contraindications to tympanic membrane closure. * An audiometric finding indicates a characteristic of Carhart's notch which is an increase in bone conduction threshold with a peak at 2,000 hertz (Hz). * Only hearing ear or better hearing ear and the contralateral ear ≥ 40 dB (decibels) by average four-frequency (500, 1000, 2000 and 4000 Hz). * Whole circumference of the tympanic membrane perforation is not visible by endoscope. * Presence/history of eosinophilic otitis media in either ear. * Subject has a presence of adhesive otitis media in the contralateral ear. * Subject has a presence of any wound healing systemic condition. * Subject has Obstructive Sleep Apnea where the subject is required to use Continuous Positive Airway Pressure (CPAP) during the study period. * Subject is exposed in their daily life to high volume of water into the ear canal (e.g., swimmer or surfer). * Subject has health conditions that would prevent him/her from fulfilling the study requirements on the basis of medical history and laboratory test (Serum Chemistries, complete blood count \[CBC\] with Differential, Urinalysis) results at the screening visit. * Subject is receiving any other investigational agents during study participation. * Subject has any form of substance abuse, or psychiatric illness/social situations that would limit compliance with study requirements, or a condition that could invalidate communication. * Subject has a known or suspected hypersensitivity to ASP0598, or any components of the formulation used. * Subject has had previous exposure with ASP0598. * Subject is unlikely to comply with the visits scheduled in the protocol.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in TVAS at Week 12/EOS in MADBaseline and week 12TVAS was used by participants to rate their tinnitus at baseline and week 12. The scale was a numeric scale and ranged from 0 (not at all strong or loud) to 10 (extremely strong or loud). A lower value indicates less level of discomfort. For the change from baseline, a negative value indicates improvement (less level of discomfort).
Number of Participants With Treatment Emergent Adverse Events (TEAEs) in SADFrom first dose up to day 57An adverse event (AE) is any untoward medical occurrence in a participant administered an investigational product (IP), and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of IP whether or not considered related to the IP. A TEAE is defined as an AE observed after starting administration of the study drug through end of study visit.
Number of Participants With AE of Special Interest as Cholesteatoma or Ear Neoplasm in SADFrom first dose up to day 57An AE is any untoward medical occurrence in a participant administered an IP, and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of IP whether or not considered related to the IP. Number of participants with cholesteatoma or ear neoplasm is reported.
Number of Participants With AE of Special Interest as Ototoxic Symptoms (Tinnitus, Sensorineural Hearing Loss, Dizziness) in SADFrom first dose up to day 57An AE is any untoward medical occurrence in a participant administered an IP, and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of IP whether or not considered related to the IP. Number of participants with any ototoxic symptoms (tinnitus, sensorineural hearing loss, dizziness) is reported.
Number of Participants With AE of Special Interest as Otitis Media or Otitis Externa in SADFrom first dose up to day 57An AE is any untoward medical occurrence in a participant administered an IP, and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of IP whether or not considered related to the IP. Number of participants with otitis media or otitis externa is reported.
Change From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SADBaseline and week 8PTA was a behavioral and quantitative hearing test to assess hearing. Pure tone air conduction and bone conduction tests were used to determine whether there was any unilateral or bilateral hearing loss, what type of hearing loss was present, which frequencies were impacted, and the magnitude of the hearing loss.
Change From Baseline in TVAS at Week 8/EOS in SADBaseline and week 8TVAS was used by participants to rate their tinnitus at baseline and week 8. The scale was a numeric scale and ranged from 0 (not at all strong or loud) to 10 (extremely strong or loud). A lower value indicates less level of discomfort. For the change from baseline, a negative value indicates improvement (less level of discomfort).
Number of Participants With TEAEs in MADFrom first dose up to day 85An AE is any untoward medical occurrence in a participant administered an IP, and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of IP whether or not considered related to the IP. A TEAE is defined as an AE observed after starting administration of the study drug through end of study visit.
Number of Participants With AE Special Interest as Cholesteatoma or Ear Neoplasm in MADFrom first dose up to day 85An AE is any untoward medical occurrence in a participant administered an IP, and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of IP whether or not considered related to the IP. Number of participants with cholesteatoma or ear neoplasm is reported.
Number of Participants With AE of Special Interest as Ototoxic Symptoms (Tinnitus, Sensorineural Hearing Loss, Dizziness) in MADFrom first dose up to day 85An AE is any untoward medical occurrence in a participant administered an IP, and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of IP whether or not considered related to the IP. Number of participants with any Ototoxic symptoms (tinnitus, sensorineural hearing loss, dizziness) is reported
Number of Participants With AE of Special Interest as Otitis Media or Otitis Externa in MADFrom first dose up to day 85An AE is any untoward medical occurrence in a participant administered an IP, and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of IP whether or not considered related to the IP. Number of participants with otitis media or otitis externa is reported.
Change From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 12/EOS in MADBaseline and week 12PTA was a behavioral and quantitative hearing test to assess hearing. Pure tone air conduction and bone conduction tests were used to determine whether there was any unilateral or bilateral hearing loss, what type of hearing loss was present, which frequencies were impacted, and the magnitude of the hearing loss.

Secondary

MeasureTime frameDescription
Number of Participants With Complete Closure of Tympanic Membrane Perforation (TMP) at Week 8 for SADWeek 8Tympanic membrane perforation is a hole in the thin membrane that separates the ear canal from the middle ear. TMP closure is defined as microscopic TMP closure without presence of pin hole.
Number of Participants With Complete Closure of TMP at Week 12 for Dose ExpansionWeek 12Tympanic membrane perforation is a hole in the thin membrane that separates the ear canal from the middle ear. TMP closure is defined as microscopic TMP closure without presence of pin hole.
Change From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 8 for SADBaseline and week 8Ratio of TMP size per total area of tympanic membrane calculation was performed by central imaging vendor and measured in percentage.
Change From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 12 for Dose ExpansionBaseline and week 12Ratio of TMP size per total area of tympanic membrane calculation was performed by central imaging vendor and was measured by percentage.
Change From Baseline in TMP Size at Week 8 for SADBaseline and week 8TMP size calculation was be performed by central imaging vendor.
Change From Baseline in TMP Size at Week 12 for Dose ExpansionBaseline and week 12TMP size calculation was be performed by central imaging vendor.
Number of Participants With Complete Closure of TMP at Week 12 for MADWeek 12Tympanic membrane perforation is a hole in the thin membrane that separates the ear canal from the middle ear. TMP closure is defined as microscopic TMP closure without presence of pin hole.
Number of Participants With Complete Closure of TMP at Week 16 for Dose ExpansionWeek 16Tympanic membrane perforation is a hole in the thin membrane that separates the ear canal from the middle ear. TMP closure is defined as microscopic TMP closure without presence of pin hole.
Change From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 12 for MADBaseline and week 12Ratio of TMP size per total area of tympanic membrane calculation was performed by central imaging vendor and measured in percentage.
Change From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 16 for Dose ExpansionBaseline and week 16Ratio of TMP size per total area of tympanic membrane calculation was performed by central imaging vendor and measured in percentage.
Change From Baseline in TMP Size at Week 12 for MADBaseline and week 12TMP size calculation was be performed by central imaging vendor.
Change From Baseline in TMP Size at Week 16 for Dose ExpansionBaseline and week 16TMP size calculation was be performed by central imaging vendor.

Countries

United States

Participant flow

Recruitment details

Participants with Chronic Tympanic Membrane Perforation (CTMP) documented as persisting longer than 3 months were enrolled in this study.

Pre-assignment details

Single Ascending Dose (SAD) Multiple Ascending Dose (MAD)

Participants by arm

ArmCount
SAD: 0.03 mcg
Participants received single dose of 0.03 mcg ASP0598 Otic Solution into the affected ear on day 1 and returned to the investigative site for assessments on days 2, 3, 8, 15, 29, and 57 (EOS).
4
SAD: ASP0598 0.15 mcg
Participants received single dose of 0.15 mcg ASP0598 Otic Solution into the affected ear on Day 1 and returned to the investigative site for assessments on days 2, 3, 8, 15, 29, and 57 (EOS).
4
SAD: ASP0598 0.75 mcg
Participants received single dose of 0.75 mcg ASP0598 Otic Solution into the affected ear on day 1 and returned to the investigative site for assessments on days 2, 3, 8, 15, 29, and 57 (EOS).
4
SAD: ASP0598 2.25 mcg
Participants received single dose of 2.25 mcg ASP0598 Otic Solution into the affected ear on day 1 and returned to the investigative site for assessments on days 2, 3, 8, 15, 29, and 57 (EOS).
4
SAD: Placebo
Participants received single dose of placebo matched to ASP0598 Otic Solution into the affected ear on day 1 and returned to the investigative site for assessments on days 2, 3, 8, 15, 29, and 57 (EOS).
4
MAD: 0.75 mcg
Participants received multiple doses of 0.75 mcg ASP0598 Otic Solution into the affected ear on days 1, 15 and 29 and returned to the investigative site for assessments on days 8, 15, 22, 29, 36, 57, and 85 (EOS).
6
MAD: ASP0598 2.25 mcg
Participants received multiple doses of 2.25 mcg ASP0598 Otic Solution into the affected ear on days 1, 15 and 29 and returned to the investigative site for assessments on days 8, 15, 22, 29, 36, 57, and 85 (EOS).
6
MAD: Placebo
Participants received multiple doses of placebo matched to ASP0598 Otic Solution into the affected ear on days 1, 15 and 29 and returned to the investigative site for assessments on days 8, 15, 22, 29, 36, 57, and 85 (EOS).
4
Total36

Baseline characteristics

CharacteristicTotalMAD: PlaceboMAD: ASP0598 2.25 mcgMAD: 0.75 mcgSAD: 0.03 mcgSAD: PlaceboSAD: ASP0598 2.25 mcgSAD: ASP0598 0.75 mcgSAD: ASP0598 0.15 mcg
Age, Continuous45.11 Years
STANDARD_DEVIATION 13.9
47.5 Years
STANDARD_DEVIATION 14
44.3 Years
STANDARD_DEVIATION 20.1
36.5 Years
STANDARD_DEVIATION 18.6
32.5 Years
STANDARD_DEVIATION 7
51.5 Years
STANDARD_DEVIATION 8.1
49.5 Years
STANDARD_DEVIATION 16
50.8 Years
STANDARD_DEVIATION 7.1
48.3 Years
STANDARD_DEVIATION 20.4
Bone Conduction Hearing at 1, 2,4 kilohertz (kHz) by Pure Tone Audiometry (PTA)
1 kHz
9.8 decibles
STANDARD_DEVIATION 9.9
3.8 decibles
STANDARD_DEVIATION 4.8
14.2 decibles
STANDARD_DEVIATION 15.3
1.7 decibles
STANDARD_DEVIATION 4.1
6.3 decibles
STANDARD_DEVIATION 7.5
12.5 decibles
STANDARD_DEVIATION 9.6
11.3 decibles
STANDARD_DEVIATION 11.1
22.5 decibles
STANDARD_DEVIATION 20.2
6.3 decibles
STANDARD_DEVIATION 6.3
Bone Conduction Hearing at 1, 2,4 kilohertz (kHz) by Pure Tone Audiometry (PTA)
2 kHz
17.6 decibles
STANDARD_DEVIATION 12.5
10.0 decibles
STANDARD_DEVIATION 5.8
20.8 decibles
STANDARD_DEVIATION 14.6
10.0 decibles
STANDARD_DEVIATION 13.4
11.3 decibles
STANDARD_DEVIATION 10.3
30.0 decibles
STANDARD_DEVIATION 21.2
22.5 decibles
STANDARD_DEVIATION 13.2
25.0 decibles
STANDARD_DEVIATION 14.7
11.3 decibles
STANDARD_DEVIATION 7.5
Bone Conduction Hearing at 1, 2,4 kilohertz (kHz) by Pure Tone Audiometry (PTA)
4 kHz
19.5 decibles
STANDARD_DEVIATION 14.2
17.5 decibles
STANDARD_DEVIATION 9.6
21.7 decibles
STANDARD_DEVIATION 15.4
9.2 decibles
STANDARD_DEVIATION 17.7
6.3 decibles
STANDARD_DEVIATION 6.3
27.5 decibles
STANDARD_DEVIATION 25.3
28.8 decibles
STANDARD_DEVIATION 11.1
30.0 decibles
STANDARD_DEVIATION 24.2
15.0 decibles
STANDARD_DEVIATION 4.1
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants1 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
34 Participants4 Participants6 Participants6 Participants4 Participants3 Participants4 Participants3 Participants4 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
3 Participants1 Participants1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
4 Participants0 Participants0 Participants1 Participants0 Participants1 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
29 Participants3 Participants5 Participants5 Participants4 Participants3 Participants3 Participants3 Participants3 Participants
Ratio of TMP size per total area of tympanic membrane11.8 Percentage of total area of TM
STANDARD_DEVIATION 7.8
8.7 Percentage of total area of TM
STANDARD_DEVIATION 6.7
17.1 Percentage of total area of TM
STANDARD_DEVIATION 9.6
18.8 Percentage of total area of TM
STANDARD_DEVIATION 13.4
10.3 Percentage of total area of TM
STANDARD_DEVIATION 5.1
7.3 Percentage of total area of TM
STANDARD_DEVIATION 3.8
15.8 Percentage of total area of TM
STANDARD_DEVIATION 11.7
4.7 Percentage of total area of TM
STANDARD_DEVIATION 3.8
11.6 Percentage of total area of TM
STANDARD_DEVIATION 8.1
Sex: Female, Male
Female
18 Participants1 Participants2 Participants2 Participants2 Participants2 Participants2 Participants4 Participants3 Participants
Sex: Female, Male
Male
18 Participants3 Participants4 Participants4 Participants2 Participants2 Participants2 Participants0 Participants1 Participants
Tinnitus Visual Analog Scale (TVAS)2.2 Score on a scale
STANDARD_DEVIATION 2.6
2.5 Score on a scale
STANDARD_DEVIATION 2.1
3.3 Score on a scale
STANDARD_DEVIATION 2.1
0.7 Score on a scale
STANDARD_DEVIATION 1.6
1.0 Score on a scale
STANDARD_DEVIATION 2
2.5 Score on a scale
STANDARD_DEVIATION 2.9
3.0 Score on a scale
STANDARD_DEVIATION 3.8
3.0 Score on a scale
STANDARD_DEVIATION 3.6
1.5 Score on a scale
STANDARD_DEVIATION 3

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
deaths
Total, all-cause mortality
0 / 40 / 40 / 40 / 40 / 40 / 60 / 60 / 4
other
Total, other adverse events
4 / 41 / 43 / 43 / 42 / 46 / 65 / 64 / 4
serious
Total, serious adverse events
0 / 40 / 40 / 40 / 40 / 40 / 60 / 60 / 4

Outcome results

Primary

Change From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 12/EOS in MAD

PTA was a behavioral and quantitative hearing test to assess hearing. Pure tone air conduction and bone conduction tests were used to determine whether there was any unilateral or bilateral hearing loss, what type of hearing loss was present, which frequencies were impacted, and the magnitude of the hearing loss.

Time frame: Baseline and week 12

Population: SAF population with available data was analyzed.

ArmMeasureGroupValue (MEAN)Dispersion
SAD: 0.03 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 12/EOS in MAD2 kHz1.0 deciblesStandard Deviation 2.2
SAD: 0.03 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 12/EOS in MAD1 kHz1.0 deciblesStandard Deviation 2.2
SAD: 0.03 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 12/EOS in MAD4 kHz2.0 deciblesStandard Deviation 7.6
SAD: 0.15 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 12/EOS in MAD2 kHz-2.5 deciblesStandard Deviation 5.2
SAD: 0.15 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 12/EOS in MAD1 kHz-3.3 deciblesStandard Deviation 6.1
SAD: 0.15 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 12/EOS in MAD4 kHz-1.7 deciblesStandard Deviation 6.8
SAD: 0.75 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 12/EOS in MAD1 kHz-1.7 deciblesStandard Deviation 2.9
SAD: 0.75 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 12/EOS in MAD4 kHz-6.7 deciblesStandard Deviation 2.9
SAD: 0.75 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 12/EOS in MAD2 kHz0.0 deciblesStandard Deviation 5
Primary

Change From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD

PTA was a behavioral and quantitative hearing test to assess hearing. Pure tone air conduction and bone conduction tests were used to determine whether there was any unilateral or bilateral hearing loss, what type of hearing loss was present, which frequencies were impacted, and the magnitude of the hearing loss.

Time frame: Baseline and week 8

Population: SAF population

ArmMeasureGroupValue (MEAN)Dispersion
SAD: 0.03 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD1 kHz-1.3 deciblesStandard Deviation 2.5
SAD: 0.03 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD4 kHz0.0 deciblesStandard Deviation 4.1
SAD: 0.03 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD2 kHz1.3 deciblesStandard Deviation 2.5
SAD: 0.15 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD2 kHz-1.3 deciblesStandard Deviation 2.5
SAD: 0.15 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD1 kHz0.0 deciblesStandard Deviation 4.1
SAD: 0.15 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD4 kHz-1.3 deciblesStandard Deviation 4.8
SAD: 0.75 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD2 kHz2.5 deciblesStandard Deviation 8.7
SAD: 0.75 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD1 kHz0.0 deciblesStandard Deviation 4.1
SAD: 0.75 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD4 kHz1.3 deciblesStandard Deviation 7.5
SAD: 2.25 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD1 kHz-2.5 deciblesStandard Deviation 6.5
SAD: 2.25 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD4 kHz-1.3 deciblesStandard Deviation 4.8
SAD: 2.25 mcgChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD2 kHz-3.8 deciblesStandard Deviation 8.5
SAD: PlaceboChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD2 kHz-1.3 deciblesStandard Deviation 4.8
SAD: PlaceboChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD1 kHz1.3 deciblesStandard Deviation 6.3
SAD: PlaceboChange From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD4 kHz0.0 deciblesStandard Deviation 7.1
Primary

Change From Baseline in TVAS at Week 12/EOS in MAD

TVAS was used by participants to rate their tinnitus at baseline and week 12. The scale was a numeric scale and ranged from 0 (not at all strong or loud) to 10 (extremely strong or loud). A lower value indicates less level of discomfort. For the change from baseline, a negative value indicates improvement (less level of discomfort).

Time frame: Baseline and week 12

Population: SAF population with available data was analyzed.

ArmMeasureValue (MEAN)Dispersion
SAD: 0.03 mcgChange From Baseline in TVAS at Week 12/EOS in MAD-0.6 Score on a scaleStandard Deviation 1.3
SAD: 0.15 mcgChange From Baseline in TVAS at Week 12/EOS in MAD-0.7 Score on a scaleStandard Deviation 2
SAD: 0.75 mcgChange From Baseline in TVAS at Week 12/EOS in MAD0.0 Score on a scaleStandard Deviation 2
Primary

Change From Baseline in TVAS at Week 8/EOS in SAD

TVAS was used by participants to rate their tinnitus at baseline and week 8. The scale was a numeric scale and ranged from 0 (not at all strong or loud) to 10 (extremely strong or loud). A lower value indicates less level of discomfort. For the change from baseline, a negative value indicates improvement (less level of discomfort).

Time frame: Baseline and week 8

Population: SAF population

ArmMeasureValue (MEAN)Dispersion
SAD: 0.03 mcgChange From Baseline in TVAS at Week 8/EOS in SAD-0.3 Score on a scaleStandard Deviation 0.5
SAD: 0.15 mcgChange From Baseline in TVAS at Week 8/EOS in SAD0.0 Score on a scaleStandard Deviation 0
SAD: 0.75 mcgChange From Baseline in TVAS at Week 8/EOS in SAD-1.0 Score on a scaleStandard Deviation 2
SAD: 2.25 mcgChange From Baseline in TVAS at Week 8/EOS in SAD0.3 Score on a scaleStandard Deviation 2.9
SAD: PlaceboChange From Baseline in TVAS at Week 8/EOS in SAD-1.5 Score on a scaleStandard Deviation 2.4
Primary

Number of Participants With AE of Special Interest as Cholesteatoma or Ear Neoplasm in SAD

An AE is any untoward medical occurrence in a participant administered an IP, and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of IP whether or not considered related to the IP. Number of participants with cholesteatoma or ear neoplasm is reported.

Time frame: From first dose up to day 57

Population: SAF population

ArmMeasureValue (NUMBER)
SAD: 0.03 mcgNumber of Participants With AE of Special Interest as Cholesteatoma or Ear Neoplasm in SAD0 Participants
SAD: 0.15 mcgNumber of Participants With AE of Special Interest as Cholesteatoma or Ear Neoplasm in SAD0 Participants
SAD: 0.75 mcgNumber of Participants With AE of Special Interest as Cholesteatoma or Ear Neoplasm in SAD0 Participants
SAD: 2.25 mcgNumber of Participants With AE of Special Interest as Cholesteatoma or Ear Neoplasm in SAD0 Participants
SAD: PlaceboNumber of Participants With AE of Special Interest as Cholesteatoma or Ear Neoplasm in SAD0 Participants
Primary

Number of Participants With AE of Special Interest as Otitis Media or Otitis Externa in MAD

An AE is any untoward medical occurrence in a participant administered an IP, and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of IP whether or not considered related to the IP. Number of participants with otitis media or otitis externa is reported.

Time frame: From first dose up to day 85

Population: SAF population

ArmMeasureValue (NUMBER)
SAD: 0.03 mcgNumber of Participants With AE of Special Interest as Otitis Media or Otitis Externa in MAD1 Participants
SAD: 0.15 mcgNumber of Participants With AE of Special Interest as Otitis Media or Otitis Externa in MAD0 Participants
SAD: 0.75 mcgNumber of Participants With AE of Special Interest as Otitis Media or Otitis Externa in MAD0 Participants
Primary

Number of Participants With AE of Special Interest as Otitis Media or Otitis Externa in SAD

An AE is any untoward medical occurrence in a participant administered an IP, and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of IP whether or not considered related to the IP. Number of participants with otitis media or otitis externa is reported.

Time frame: From first dose up to day 57

Population: SAF population

ArmMeasureValue (NUMBER)
SAD: 0.03 mcgNumber of Participants With AE of Special Interest as Otitis Media or Otitis Externa in SAD1 Participants
SAD: 0.15 mcgNumber of Participants With AE of Special Interest as Otitis Media or Otitis Externa in SAD0 Participants
SAD: 0.75 mcgNumber of Participants With AE of Special Interest as Otitis Media or Otitis Externa in SAD0 Participants
SAD: 2.25 mcgNumber of Participants With AE of Special Interest as Otitis Media or Otitis Externa in SAD1 Participants
SAD: PlaceboNumber of Participants With AE of Special Interest as Otitis Media or Otitis Externa in SAD0 Participants
Primary

Number of Participants With AE of Special Interest as Ototoxic Symptoms (Tinnitus, Sensorineural Hearing Loss, Dizziness) in MAD

An AE is any untoward medical occurrence in a participant administered an IP, and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of IP whether or not considered related to the IP. Number of participants with any Ototoxic symptoms (tinnitus, sensorineural hearing loss, dizziness) is reported

Time frame: From first dose up to day 85

Population: SAF population

ArmMeasureValue (NUMBER)
SAD: 0.03 mcgNumber of Participants With AE of Special Interest as Ototoxic Symptoms (Tinnitus, Sensorineural Hearing Loss, Dizziness) in MAD2 Participants
SAD: 0.15 mcgNumber of Participants With AE of Special Interest as Ototoxic Symptoms (Tinnitus, Sensorineural Hearing Loss, Dizziness) in MAD1 Participants
SAD: 0.75 mcgNumber of Participants With AE of Special Interest as Ototoxic Symptoms (Tinnitus, Sensorineural Hearing Loss, Dizziness) in MAD0 Participants
Primary

Number of Participants With AE of Special Interest as Ototoxic Symptoms (Tinnitus, Sensorineural Hearing Loss, Dizziness) in SAD

An AE is any untoward medical occurrence in a participant administered an IP, and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of IP whether or not considered related to the IP. Number of participants with any ototoxic symptoms (tinnitus, sensorineural hearing loss, dizziness) is reported.

Time frame: From first dose up to day 57

Population: SAF population

ArmMeasureValue (NUMBER)
SAD: 0.03 mcgNumber of Participants With AE of Special Interest as Ototoxic Symptoms (Tinnitus, Sensorineural Hearing Loss, Dizziness) in SAD2 Participants
SAD: 0.15 mcgNumber of Participants With AE of Special Interest as Ototoxic Symptoms (Tinnitus, Sensorineural Hearing Loss, Dizziness) in SAD0 Participants
SAD: 0.75 mcgNumber of Participants With AE of Special Interest as Ototoxic Symptoms (Tinnitus, Sensorineural Hearing Loss, Dizziness) in SAD1 Participants
SAD: 2.25 mcgNumber of Participants With AE of Special Interest as Ototoxic Symptoms (Tinnitus, Sensorineural Hearing Loss, Dizziness) in SAD1 Participants
SAD: PlaceboNumber of Participants With AE of Special Interest as Ototoxic Symptoms (Tinnitus, Sensorineural Hearing Loss, Dizziness) in SAD0 Participants
Primary

Number of Participants With AE Special Interest as Cholesteatoma or Ear Neoplasm in MAD

An AE is any untoward medical occurrence in a participant administered an IP, and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of IP whether or not considered related to the IP. Number of participants with cholesteatoma or ear neoplasm is reported.

Time frame: From first dose up to day 85

Population: SAF population

ArmMeasureValue (NUMBER)
SAD: 0.03 mcgNumber of Participants With AE Special Interest as Cholesteatoma or Ear Neoplasm in MAD0 Participants
SAD: 0.15 mcgNumber of Participants With AE Special Interest as Cholesteatoma or Ear Neoplasm in MAD0 Participants
SAD: 0.75 mcgNumber of Participants With AE Special Interest as Cholesteatoma or Ear Neoplasm in MAD0 Participants
Primary

Number of Participants With TEAEs in MAD

An AE is any untoward medical occurrence in a participant administered an IP, and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of IP whether or not considered related to the IP. A TEAE is defined as an AE observed after starting administration of the study drug through end of study visit.

Time frame: From first dose up to day 85

Population: SAF population

ArmMeasureValue (NUMBER)
SAD: 0.03 mcgNumber of Participants With TEAEs in MAD6 Participants
SAD: 0.15 mcgNumber of Participants With TEAEs in MAD5 Participants
SAD: 0.75 mcgNumber of Participants With TEAEs in MAD4 Participants
Primary

Number of Participants With Treatment Emergent Adverse Events (TEAEs) in SAD

An adverse event (AE) is any untoward medical occurrence in a participant administered an investigational product (IP), and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of IP whether or not considered related to the IP. A TEAE is defined as an AE observed after starting administration of the study drug through end of study visit.

Time frame: From first dose up to day 57

Population: SAF population

ArmMeasureValue (NUMBER)
SAD: 0.03 mcgNumber of Participants With Treatment Emergent Adverse Events (TEAEs) in SAD4 Participants
SAD: 0.15 mcgNumber of Participants With Treatment Emergent Adverse Events (TEAEs) in SAD1 Participants
SAD: 0.75 mcgNumber of Participants With Treatment Emergent Adverse Events (TEAEs) in SAD3 Participants
SAD: 2.25 mcgNumber of Participants With Treatment Emergent Adverse Events (TEAEs) in SAD3 Participants
SAD: PlaceboNumber of Participants With Treatment Emergent Adverse Events (TEAEs) in SAD2 Participants
Secondary

Change From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 12 for Dose Expansion

Ratio of TMP size per total area of tympanic membrane calculation was performed by central imaging vendor and was measured by percentage.

Time frame: Baseline and week 12

Population: The single and multiple dose expansion parts of the study were not opened following review of safety and efficacy results of the SAD part of the study by the DMC, therefore the data was not collected.

Secondary

Change From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 12 for MAD

Ratio of TMP size per total area of tympanic membrane calculation was performed by central imaging vendor and measured in percentage.

Time frame: Baseline and week 12

Population: FAS population

ArmMeasureValue (MEAN)Dispersion
SAD: 0.03 mcgChange From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 12 for MAD-0.2 Percentage of total area of TMStandard Deviation 2.4
SAD: 0.15 mcgChange From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 12 for MAD2.5 Percentage of total area of TMStandard Deviation 2.3
SAD: 0.75 mcgChange From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 12 for MAD0.3 Percentage of total area of TMStandard Deviation 2.3
Secondary

Change From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 16 for Dose Expansion

Ratio of TMP size per total area of tympanic membrane calculation was performed by central imaging vendor and measured in percentage.

Time frame: Baseline and week 16

Population: The single and multiple dose expansion parts of the study were not opened following review of safety and efficacy results of the MAD part of the study by the DMC, therefore the data was not collected.

Secondary

Change From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 8 for SAD

Ratio of TMP size per total area of tympanic membrane calculation was performed by central imaging vendor and measured in percentage.

Time frame: Baseline and week 8

Population: FAS population with available data was analyzed.

ArmMeasureValue (MEAN)Dispersion
SAD: 0.03 mcgChange From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 8 for SAD-0.4 Percentage of total area of TMStandard Deviation 0.6
SAD: 0.15 mcgChange From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 8 for SAD4.2 Percentage of total area of TMStandard Deviation 6.3
SAD: 0.75 mcgChange From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 8 for SAD-1.8 Percentage of total area of TMStandard Deviation 2.3
SAD: 2.25 mcgChange From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 8 for SAD1.0 Percentage of total area of TMStandard Deviation 0.5
SAD: PlaceboChange From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 8 for SAD0.3 Percentage of total area of TMStandard Deviation 3
Secondary

Change From Baseline in TMP Size at Week 12 for Dose Expansion

TMP size calculation was be performed by central imaging vendor.

Time frame: Baseline and week 12

Population: The single and multiple dose expansion parts of the study were not opened following review of safety and efficacy results of the SAD part of the study by the DMC, therefore the data was not collected.

Secondary

Change From Baseline in TMP Size at Week 12 for MAD

TMP size calculation was be performed by central imaging vendor.

Time frame: Baseline and week 12

Population: FAS population with available data was analyzed.

ArmMeasureValue (MEAN)Dispersion
SAD: 0.03 mcgChange From Baseline in TMP Size at Week 12 for MAD1904.2 mm^2Standard Deviation 18056.6
SAD: 0.15 mcgChange From Baseline in TMP Size at Week 12 for MAD545.8 mm^2Standard Deviation 9706.9
SAD: 0.75 mcgChange From Baseline in TMP Size at Week 12 for MAD-1237.3 mm^2Standard Deviation 672.5
Secondary

Change From Baseline in TMP Size at Week 16 for Dose Expansion

TMP size calculation was be performed by central imaging vendor.

Time frame: Baseline and week 16

Population: The single and multiple dose expansion parts of the study were not opened following review of safety and efficacy results of the MAD part of the study by the DMC, therefore the data was not collected.

Secondary

Change From Baseline in TMP Size at Week 8 for SAD

TMP size calculation was be performed by central imaging vendor.

Time frame: Baseline and week 8

Population: FAS population

ArmMeasureValue (MEAN)Dispersion
SAD: 0.03 mcgChange From Baseline in TMP Size at Week 8 for SAD13451.0 mm^2Standard Deviation 9700.9
SAD: 0.15 mcgChange From Baseline in TMP Size at Week 8 for SAD14271.5 mm^2Standard Deviation 11800.6
SAD: 0.75 mcgChange From Baseline in TMP Size at Week 8 for SAD9572.0 mm^2Standard Deviation 9462.7
SAD: 2.25 mcgChange From Baseline in TMP Size at Week 8 for SAD12784.3 mm^2Standard Deviation 5277.9
SAD: PlaceboChange From Baseline in TMP Size at Week 8 for SAD27389.0 mm^2Standard Deviation 37917.3
Secondary

Number of Participants With Complete Closure of TMP at Week 12 for Dose Expansion

Tympanic membrane perforation is a hole in the thin membrane that separates the ear canal from the middle ear. TMP closure is defined as microscopic TMP closure without presence of pin hole.

Time frame: Week 12

Population: The single and multiple dose expansion parts of the study were not opened following review of safety and efficacy results of the SAD part of the study by the DMC, therefore the data was not collected.

Secondary

Number of Participants With Complete Closure of TMP at Week 12 for MAD

Tympanic membrane perforation is a hole in the thin membrane that separates the ear canal from the middle ear. TMP closure is defined as microscopic TMP closure without presence of pin hole.

Time frame: Week 12

Population: FAS population

ArmMeasureValue (NUMBER)
SAD: 0.03 mcgNumber of Participants With Complete Closure of TMP at Week 12 for MAD0 Participants
SAD: 0.15 mcgNumber of Participants With Complete Closure of TMP at Week 12 for MAD0 Participants
SAD: 0.75 mcgNumber of Participants With Complete Closure of TMP at Week 12 for MAD1 Participants
Secondary

Number of Participants With Complete Closure of TMP at Week 16 for Dose Expansion

Tympanic membrane perforation is a hole in the thin membrane that separates the ear canal from the middle ear. TMP closure is defined as microscopic TMP closure without presence of pin hole.

Time frame: Week 16

Population: The single and multiple dose expansion parts of the study were not opened following review of safety and efficacy results of the MAD part of the study by the DMC, therefore the data was not collected.

Secondary

Number of Participants With Complete Closure of Tympanic Membrane Perforation (TMP) at Week 8 for SAD

Tympanic membrane perforation is a hole in the thin membrane that separates the ear canal from the middle ear. TMP closure is defined as microscopic TMP closure without presence of pin hole.

Time frame: Week 8

Population: The Full Analysis Set (FAS) consisted of all randomized participants who received a dose of study drug and had baseline value and at least 1 post baseline complete closure assessment during study period.

ArmMeasureValue (NUMBER)
SAD: 0.03 mcgNumber of Participants With Complete Closure of Tympanic Membrane Perforation (TMP) at Week 8 for SAD0 Participants
SAD: 0.15 mcgNumber of Participants With Complete Closure of Tympanic Membrane Perforation (TMP) at Week 8 for SAD0 Participants
SAD: 0.75 mcgNumber of Participants With Complete Closure of Tympanic Membrane Perforation (TMP) at Week 8 for SAD1 Participants
SAD: 2.25 mcgNumber of Participants With Complete Closure of Tympanic Membrane Perforation (TMP) at Week 8 for SAD0 Participants
SAD: PlaceboNumber of Participants With Complete Closure of Tympanic Membrane Perforation (TMP) at Week 8 for SAD0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026