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TerminatedNCT04305184Updated Nov 25, 2024Results posted

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 interventional study of ASP0598 and Placebo in Chronic Tympanic Membrane Perforation, sponsored by Astellas Pharma Global Development, Inc.. Terminated at 10 sites in United States. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2024-11-25.

Sponsored by Astellas Pharma Global Development, Inc. · Phase 1/2, Interventional, and Treatment

Why this study was terminated
Lack of Efficacy
Phase
Phase 1/2
Study type
Interventional
Enrollment
36
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study 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.

Read the 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.

02

Conditions studied

  • Chronic Tympanic Membrane Perforation

Keywords

  • ASP0598
03

In context

Tympanic Membrane Perforation

45 studies on the registry are indexed under Tympanic Membrane Perforation; 10 are open to participants now.

This study's enrollment of 36 is below the median of 57 across 31 interventional studies indexed under Tympanic Membrane Perforation.

Browse Tympanic Membrane Perforation studies →

Lead sponsor

Astellas Pharma Global Development, Inc. is the lead sponsor of 204 studies on the registry; 25 are open to participants now.

Of its 80 completed or terminated interventional studies of FDA-regulated products, 38 (48%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts 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

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.
05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Sequential assignment
Masking
Double (Participant, Investigator)
Enrollment
36 participants (actual)

Study arms

  • Experimental
    Single Ascending Dose (SAD): 0.03 mcg

    Participants received single dose of 0.03 microgram (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 \[End of Study (EOS)\].

    Drug: ASP0598

  • Experimental
    SAD: 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).

    Drug: ASP0598

  • Experimental
    SAD: 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).

    Drug: ASP0598

  • Experimental
    SAD: 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).

    Drug: ASP0598

  • Placebo comparator
    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).

    Other: Placebo

  • Experimental
    Multiple Ascending Dose (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).

    Drug: ASP0598

  • Experimental
    MAD: 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).

    Drug: ASP0598

  • Placebo comparator
    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).

    Other: Placebo

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.

06

What researchers measure

Primary outcomes

  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

Secondary outcomes

  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

07

Results

Posted Feb 7, 2024
Limitations and caveats
Due to limitations of the TM imaging data as evaluated by the central reader, secondary endpoints related to change in TMP size could not be fully evaluated. Following SAD and MAD data review by DMC, the single dose of ASP0598 Otic Solution provided insufficient efficacy to open the single dose expansion study.

Participant flow

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

SAD: Days 1 to 57
Participant flow — SAD: Days 1 to 57
MilestoneSAD: 0.03 mcgSAD: 0.15 mcgSAD: 0.75 mcgSAD: 2.25 mcgSAD: PlaceboMAD: 0.75 mcgMAD: 2.25 mcgMAD: Placebo
Started44444000
Completed44444000
Not completed00000000
MAD: Day 1 to 85
Participant flow — MAD: Day 1 to 85
MilestoneSAD: 0.03 mcgSAD: 0.15 mcgSAD: 0.75 mcgSAD: 2.25 mcgSAD: PlaceboMAD: 0.75 mcgMAD: 2.25 mcgMAD: Placebo
Started00000664
Completed00000664
Not completed00000000

Outcome measures

PrimaryNumber 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
Reported as:
Number · Participants
Number of Participants With Treatment Emergent Adverse Events (TEAEs) in SAD
ParticipantsSAD: 0.03 mcgSAD: 0.15 mcgSAD: 0.75 mcgSAD: 2.25 mcgSAD: Placebo
Number of Participants With Treatment Emergent Adverse Events (TEAEs) in SAD41332
PrimaryNumber 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
Reported as:
Number · Participants
Number of Participants With AE of Special Interest as Cholesteatoma or Ear Neoplasm in SAD
ParticipantsSAD: 0.03 mcgSAD: 0.15 mcgSAD: 0.75 mcgSAD: 2.25 mcgSAD: Placebo
Number of Participants With AE of Special Interest as Cholesteatoma or Ear Neoplasm in SAD00000
PrimaryNumber 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
Reported as:
Number · Participants
Number of Participants With AE of Special Interest as Ototoxic Symptoms (Tinnitus, Sensorineural Hearing Loss, Dizziness) in SAD
ParticipantsSAD: 0.03 mcgSAD: 0.15 mcgSAD: 0.75 mcgSAD: 2.25 mcgSAD: Placebo
Number of Participants With AE of Special Interest as Ototoxic Symptoms (Tinnitus, Sensorineural Hearing Loss, Dizziness) in SAD20110
PrimaryNumber 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
Reported as:
Number · Participants
Number of Participants With AE of Special Interest as Otitis Media or Otitis Externa in SAD
ParticipantsSAD: 0.03 mcgSAD: 0.15 mcgSAD: 0.75 mcgSAD: 2.25 mcgSAD: Placebo
Number of Participants With AE of Special Interest as Otitis Media or Otitis Externa in SAD10010
PrimaryChange 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
Reported as:
Mean · decibles
Change From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 8/EOS in SAD
deciblesSAD: 0.03 mcgSAD: 0.15 mcgSAD: 0.75 mcgSAD: 2.25 mcgSAD: Placebo
1 kHz-1.3 ± 2.50.0 ± 4.10.0 ± 4.1-2.5 ± 6.51.3 ± 6.3
2 kHz1.3 ± 2.5-1.3 ± 2.52.5 ± 8.7-3.8 ± 8.5-1.3 ± 4.8
4 kHz0.0 ± 4.1-1.3 ± 4.81.3 ± 7.5-1.3 ± 4.80.0 ± 7.1
PrimaryChange 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
Reported as:
Mean · Score on a scale
Change From Baseline in TVAS at Week 8/EOS in SAD
Score on a scaleSAD: 0.03 mcgSAD: 0.15 mcgSAD: 0.75 mcgSAD: 2.25 mcgSAD: Placebo
Change From Baseline in TVAS at Week 8/EOS in SAD-0.3 ± 0.50.0 ± 0.0-1.0 ± 2.00.3 ± 2.9-1.5 ± 2.4
PrimaryNumber 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
Reported as:
Number · Participants
Number of Participants With TEAEs in MAD
ParticipantsMAD: 0.75 mcgMAD: 2.25 mcgMAD: Placebo
Number of Participants With TEAEs in MAD654
PrimaryNumber 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
Reported as:
Number · Participants
Number of Participants With AE Special Interest as Cholesteatoma or Ear Neoplasm in MAD
ParticipantsMAD: 0.75 mcgMAD: 2.25 mcgMAD: Placebo
Number of Participants With AE Special Interest as Cholesteatoma or Ear Neoplasm in MAD000
PrimaryNumber 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
Reported as:
Number · Participants
Number of Participants With AE of Special Interest as Ototoxic Symptoms (Tinnitus, Sensorineural Hearing Loss, Dizziness) in MAD
ParticipantsMAD: 0.75 mcgMAD: 2.25 mcgMAD: Placebo
Number of Participants With AE of Special Interest as Ototoxic Symptoms (Tinnitus, Sensorineural Hearing Loss, Dizziness) in MAD210
PrimaryNumber 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
Reported as:
Number · Participants
Number of Participants With AE of Special Interest as Otitis Media or Otitis Externa in MAD
ParticipantsMAD: 0.75 mcgMAD: 2.25 mcgMAD: Placebo
Number of Participants With AE of Special Interest as Otitis Media or Otitis Externa in MAD100
PrimaryChange 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
Reported as:
Mean · decibles
Change From Baseline in Bone Conduction Hearing at 1, 2, 4 kHz by Pure Tone Audiometry at Week 12/EOS in MAD
deciblesMAD: 0.75 mcgMAD: 2.25 mcgMAD: Placebo
1 kHz1.0 ± 2.2-3.3 ± 6.1-1.7 ± 2.9
2 kHz1.0 ± 2.2-2.5 ± 5.20.0 ± 5.0
4 kHz2.0 ± 7.6-1.7 ± 6.8-6.7 ± 2.9
PrimaryChange 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
Reported as:
Mean · Score on a scale
Change From Baseline in TVAS at Week 12/EOS in MAD
Score on a scaleMAD: 0.75 mcgMAD: 2.25 mcgMAD: Placebo
Change From Baseline in TVAS at Week 12/EOS in MAD-0.6 ± 1.3-0.7 ± 2.00.0 ± 2.0
SecondaryNumber 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
Reported as:
Number · Participants
Number of Participants With Complete Closure of Tympanic Membrane Perforation (TMP) at Week 8 for SAD
ParticipantsSAD: 0.03 mcgSAD: 0.15 mcgSAD: 0.75 mcgSAD: 2.25 mcgSAD: Placebo
Number of Participants With Complete Closure of Tympanic Membrane Perforation (TMP) at Week 8 for SAD00100
SecondaryNumber 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

No measurements were reported for this outcome.

SecondaryChange 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
Reported as:
Mean · Percentage of total area of TM
Change From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 8 for SAD
Percentage of total area of TMSAD: 0.03 mcgSAD: 0.15 mcgSAD: 0.75 mcgSAD: 2.25 mcgSAD: Placebo
Change From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 8 for SAD-0.4 ± 0.64.2 ± 6.3-1.8 ± 2.31.0 ± 0.50.3 ± 3.0
SecondaryChange 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

No measurements were reported for this outcome.

SecondaryChange 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
Reported as:
Mean · mm^2
Change From Baseline in TMP Size at Week 8 for SAD
mm^2SAD: 0.03 mcgSAD: 0.15 mcgSAD: 0.75 mcgSAD: 2.25 mcgSAD: Placebo
Change From Baseline in TMP Size at Week 8 for SAD13451.0 ± 9700.914271.5 ± 11800.69572.0 ± 9462.712784.3 ± 5277.927389.0 ± 37917.3
SecondaryChange 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

No measurements were reported for this outcome.

SecondaryNumber 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
Reported as:
Number · Participants
Number of Participants With Complete Closure of TMP at Week 12 for MAD
ParticipantsMAD: 0.75 mcgMAD: 2.25 mcgMAD: Placebo
Number of Participants With Complete Closure of TMP at Week 12 for MAD001
SecondaryNumber 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

No measurements were reported for this outcome.

SecondaryChange 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
Reported as:
Mean · Percentage of total area of TM
Change From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 12 for MAD
Percentage of total area of TMMAD: 0.75 mcgMAD: 2.25 mcgMAD: Placebo
Change From Baseline in the Ratio of TMP Size Per Total Area of Tympanic Membrane at Week 12 for MAD-0.2 ± 2.42.5 ± 2.30.3 ± 2.3
SecondaryChange 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

No measurements were reported for this outcome.

SecondaryChange 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
Reported as:
Mean · mm^2
Change From Baseline in TMP Size at Week 12 for MAD
mm^2MAD: 0.75 mcgMAD: 2.25 mcgMAD: Placebo
Change From Baseline in TMP Size at Week 12 for MAD1904.2 ± 18056.6545.8 ± 9706.9-1237.3 ± 672.5
SecondaryChange 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

No measurements were reported for this outcome.

Adverse events

Collected over SAD: From first dose up to day 57 MAD: From first dose up to day 85. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
SAD: 0.03 mcg0/4 (0%)0/4 (0%)4/4 (100%)
SAD: ASP0598 0.15 mcg0/4 (0%)0/4 (0%)1/4 (25%)
SAD: ASP0598 0.75 mcg0/4 (0%)0/4 (0%)3/4 (75%)
SAD: ASP0598 2.25 mcg0/4 (0%)0/4 (0%)3/4 (75%)
SAD: Placebo0/4 (0%)0/4 (0%)2/4 (50%)
MAD: 0.75 mcg0/6 (0%)0/6 (0%)6/6 (100%)
MAD: ASP0598 2.25 mcg0/6 (0%)0/6 (0%)5/6 (83.3%)
MAD: Placebo0/4 (0%)0/4 (0%)4/4 (100%)
Most frequent other events
Showing 10 of 27
Most frequent other events
EventSAD: 0.03 mcgSAD: ASP0598 0.15 mcgSAD: ASP0598 0.75 mcgSAD: ASP0598 2.25 mcgSAD: PlaceboMAD: 0.75 mcgMAD: ASP0598 2.25 mcgMAD: Placebo
Ear painEar and labyrinth disorders3/41/42/40/41/45/62/63/4
Ear canal erythemaEar and labyrinth disorders1/40/40/40/40/42/61/62/4
Ear discomfortEar and labyrinth disorders1/40/40/41/41/42/63/60/4
Ear pruritusEar and labyrinth disorders2/40/41/41/40/40/61/60/4
TinnitusEar and labyrinth disorders2/40/41/41/40/42/61/60/4
HypoacusisEar and labyrinth disorders0/40/40/40/40/42/60/60/4
OtorrhoeaEar and labyrinth disorders1/40/40/41/40/42/60/60/4
HeadacheNervous system disorders0/40/40/40/41/42/60/61/4
Administration site painGeneral disorders0/40/40/41/40/40/60/60/4
Application site pruritusGeneral disorders0/40/40/40/41/40/60/60/4

Baseline characteristics

Safety Analysis Set (SAF) consisted of all randomized participants who received a dose of study drug.

Age, Continuous
Age, Continuous(Years)SAD: 0.03 mcgSAD: ASP0598 0.15 mcgSAD: ASP0598 0.75 mcgSAD: ASP0598 2.25 mcgSAD: PlaceboMAD: 0.75 mcgMAD: ASP0598 2.25 mcgMAD: PlaceboTotal
Mean32.5 ± 7.048.3 ± 20.450.8 ± 7.149.5 ± 16.051.5 ± 8.136.5 ± 18.644.3 ± 20.147.5 ± 14.045.11 ± 13.9
Sex: Female, Male
Sex: Female, Male(Participants)SAD: 0.03 mcgSAD: ASP0598 0.15 mcgSAD: ASP0598 0.75 mcgSAD: ASP0598 2.25 mcgSAD: PlaceboMAD: 0.75 mcgMAD: ASP0598 2.25 mcgMAD: PlaceboTotal
Female2342222118
Male2102244318
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)SAD: 0.03 mcgSAD: ASP0598 0.15 mcgSAD: ASP0598 0.75 mcgSAD: ASP0598 2.25 mcgSAD: PlaceboMAD: 0.75 mcgMAD: ASP0598 2.25 mcgMAD: PlaceboTotal
Hispanic or Latino001010002
Not Hispanic or Latino4434366434
Unknown or Not Reported000000000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)SAD: 0.03 mcgSAD: ASP0598 0.15 mcgSAD: ASP0598 0.75 mcgSAD: ASP0598 2.25 mcgSAD: PlaceboMAD: 0.75 mcgMAD: ASP0598 2.25 mcgMAD: PlaceboTotal
American Indian or Alaska Native000000000
Asian000100113
Native Hawaiian or Other Pacific Islander000000000
Black or African American011011004
White4333355329
More than one race000000000
Unknown or Not Reported000000000
Bone Conduction Hearing at 1, 2,4 kilohertz (kHz) by Pure Tone Audiometry (PTA)
Bone Conduction Hearing at 1, 2,4 kilohertz (kHz) by Pure Tone Audiometry (PTA)(decibles)SAD: 0.03 mcgSAD: ASP0598 0.15 mcgSAD: ASP0598 0.75 mcgSAD: ASP0598 2.25 mcgSAD: PlaceboMAD: 0.75 mcgMAD: ASP0598 2.25 mcgMAD: PlaceboTotal
1 kHz6.3 ± 7.56.3 ± 6.322.5 ± 20.211.3 ± 11.112.5 ± 9.61.7 ± 4.114.2 ± 15.33.8 ± 4.89.8 ± 9.9
2 kHz11.3 ± 10.311.3 ± 7.525.0 ± 14.722.5 ± 13.230.0 ± 21.210.0 ± 13.420.8 ± 14.610.0 ± 5.817.6 ± 12.5
4 kHz6.3 ± 6.315.0 ± 4.130.0 ± 24.228.8 ± 11.127.5 ± 25.39.2 ± 17.721.7 ± 15.417.5 ± 9.619.5 ± 14.2
Tinnitus Visual Analog Scale (TVAS)
Tinnitus Visual Analog Scale (TVAS)(Score on a scale)SAD: 0.03 mcgSAD: ASP0598 0.15 mcgSAD: ASP0598 0.75 mcgSAD: ASP0598 2.25 mcgSAD: PlaceboMAD: 0.75 mcgMAD: ASP0598 2.25 mcgMAD: PlaceboTotal
Mean1.0 ± 2.01.5 ± 3.03.0 ± 3.63.0 ± 3.82.5 ± 2.90.7 ± 1.63.3 ± 2.12.5 ± 2.12.2 ± 2.6
Ratio of TMP size per total area of tympanic membrane
Ratio of TMP size per total area of tympanic membrane(Percentage of total area of TM)SAD: 0.03 mcgSAD: ASP0598 0.15 mcgSAD: ASP0598 0.75 mcgSAD: ASP0598 2.25 mcgSAD: PlaceboMAD: 0.75 mcgMAD: ASP0598 2.25 mcgMAD: PlaceboTotal
Mean10.3 ± 5.111.6 ± 8.14.7 ± 3.815.8 ± 11.77.3 ± 3.818.8 ± 13.417.1 ± 9.68.7 ± 6.711.8 ± 7.8
08

Study locations

10 sites
  • Stanford Hospital
    Palo Alto, California 94304, United States
  • Breathe Clear Institute
    Torrance, California 90503, United States
  • ENT and Allergy Associates of Florida
    Boca Raton, Florida 33487, United States
  • Advanced ENT
    New Albany, Indiana 47150, United States
  • Advanced ENT
    Louisville, Kentucky 40220, United States
  • University of Michigan
    Ann Arbor, Michigan 48109, United States
  • Charlotte ENT Associates
    Matthews, North Carolina 28105, United States
  • Piedmont ENT
    Winston-Salem, North Carolina 27103, United States
  • Carolina ENT Clinic
    Orangeburg, South Carolina 29118, United States
  • Richmond ENT
    Richmond, Virginia 23235, United States
09

References and documents

Study documents

  • Study protocol · Aug 29, 2022
  • Statistical analysis plan · Jul 6, 2022

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — Access to anonymized individual participant level data will not be provided for this trial. Further details on Astellas' data sharing policy can be found at https://www.clinicaltrials.astellas.com/transparency/.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 25, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT04305184
Lead sponsor
Astellas Pharma Global Development, Inc.
Responsible party
Sponsor
First posted
Mar 12, 2020
Start date
Sep 10, 2020
Primary completion
Jan 24, 2023
Completion
Jan 24, 2023
Results posted
Feb 7, 2024
Last update
Nov 25, 2024

Study contacts

Medical Director
study director · Astellas Pharma Global Development, Inc.

Oversight

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

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