FX-322 in Adults With Stable Sensorineural Hearing Loss

NCT ID: NCT04120116

Last Updated: 2023-04-27

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

95 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-10-04

Study Completion Date

2020-12-17

Brief Summary

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This is a phase 2a single and repeat dose exploratory efficacy study of intratympanic FX-322 compared to placebo in healthy male and female adults with stable sensorineural hearing loss.

Detailed Description

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Sensorineural hearing loss (SNHL) accounts for about 90% of all cases of hearing loss. This phase 2a study will assess the exploratory efficacy, as well as the local and systemic safety of single and repeat intratympanic doses of FX-322 compared to placebo in approximately 96 subjects with stable mild to moderately severe sensorineural hearing loss, with a medical history consistent with either excessive noise exposure or idiopathic sudden sensorineural hearing loss.

Conditions

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Sensorineural Hearing Loss Noise Induced Hearing Loss Sudden Sensorineural Hearing Loss

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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FX-322 Single Dose, Placebo Three Doses

Four intratympanic injections of a hydrogel formulation, FX-322 Single Dose, Placebo Three Doses.

Group Type EXPERIMENTAL

FX-322 (One Dose)

Intervention Type DRUG

Patients will receive one dose of FX-322.

Placebo

Intervention Type DRUG

Patients will receive Placebo.

FX-322 Two Doses, Placebo Two Doses

Four intratympanic injections of a hydrogel formulation, FX-322 Two Doses, Placebo Two Doses.

Group Type EXPERIMENTAL

FX-322 (Two Doses)

Intervention Type DRUG

Patients will receive two doses of FX-322.

Placebo

Intervention Type DRUG

Patients will receive Placebo.

FX-322 Four Doses

Four intratympanic injections of a hydrogel formulation, FX-322 Four Doses.

Group Type EXPERIMENTAL

FX-322 (Four Doses)

Intervention Type DRUG

Patients will receive four doses of FX-322.

Placebo Four Doses

Four intratympanic injections of a hydrogel formulation, Placebo Four Doses.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Patients will receive Placebo.

Interventions

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FX-322 (One Dose)

Patients will receive one dose of FX-322.

Intervention Type DRUG

FX-322 (Two Doses)

Patients will receive two doses of FX-322.

Intervention Type DRUG

FX-322 (Four Doses)

Patients will receive four doses of FX-322.

Intervention Type DRUG

Placebo

Patients will receive Placebo.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Adults aged 18-65 years inclusive.
2. Established diagnosis of stable sensorineural hearing loss by standard audiometric measures for ≥ 6 months prior to the Screening visit (no changes in air conduction greater than 10 dB at a single frequency or greater than 5 dB at two contiguous frequencies from the prior audiogram to the Screening audiogram in the study ear).
3. Documented medical history consistent with hearing loss being caused by noise exposure or sudden sensorineural hearing loss.
4. Pure Tone Audiometry (PTA) within 26-70 dB in the ear to be injected.
5. Female subjects must be of non-childbearing potential or will need to utilize two methods of highly effective contraception during the study participation (e.g. hormonal contraception or an intrauterine device and condoms) or remain abstinent. Male subjects should use condoms with spermicide during the course of the study or remain abstinent. Subjects should not donate sperm or ova during the study period.

Exclusion Criteria

1. Previous participation in FX-322 clinical trial.
2. Currently on any medication consisting of valproic acid, valproate sodium, or divalproex sodium.
3. Perforation of tympanic membrane or other tympanic membrane disorders that would interfere with the delivery and safety assessment of an intratympanic medication or reasonably be suspected to affect tympanic membrane healing after injection in study ear. This includes a current tympanostomy tube.
4. Any conductive hearing loss of greater than 15 dB at a single frequency or greater than 10 dB at two or more contiguous octave frequencies in the study ear at the Screening visit or on the prior audiogram (if the Investigator feels there is not a true conductive hearing loss, the Medical Monitor should be consulted).
5. Active chronic middle ear disease or a history of major middle ear surgery, as an adult, in the ear to be injected.
6. Subject has had an intratympanic injection in either ear within 6 months of the screening visit.
7. History of clinically significant vestibular symptoms at the discretion of the investigator.
8. History of clinically significant systemic autoimmune disease.
9. History of head or neck radiation treatment or exposure.
10. History of platinum-based chemotherapy treatment.
11. Exposure to another investigational drug within 28 days prior to injection of study drug.
12. Evidence of any active or chronic disease or condition that could interfere with, or for which the treatment of might interfere with, the conduct of the study, or that would pose an unacceptable risk to the subject in the opinion of the investigator following a detailed medical history, physical examination, and vital signs (systolic and diastolic blood pressure, pulse rate, body temperature).
13. History of substance abuse within 2 years of the Screening Visit.
14. Positive test for drugs of abuse at screening.
15. Positive urine pregnancy test or breast-feeding.
16. Any known factor, condition or disease that, in the view of the Investigator, might interfere with treatment compliance, study conduct or interpretation of the results (e.g. previous high-dose aminoglycoside treatment).
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Frequency Therapeutics

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Carl LeBel, PhD

Role: STUDY_DIRECTOR

Frequency Therapeutics

Locations

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Clinical Trial Site

Fresno, California, United States

Site Status

Clinical Trial Site

Torrance, California, United States

Site Status

Clinical Trial Site

Colorado Springs, Colorado, United States

Site Status

Clinical Trial Site

Boca Raton, Florida, United States

Site Status

Clinical Trial Site

Sarasota, Florida, United States

Site Status

Clinical Trial Site

Tampa, Florida, United States

Site Status

Clinical Trial Site

Louisville, Kentucky, United States

Site Status

Clinical Trial Site

Omaha, Nebraska, United States

Site Status

Clinical Trial Site

Amherst, New York, United States

Site Status

Clinical Trial Site

Matthews, North Carolina, United States

Site Status

Clinical Trial Site

Winston-Salem, North Carolina, United States

Site Status

Clinical Trial Site

Orangeburg, South Carolina, United States

Site Status

Clinical Trial Site

Austin, Texas, United States

Site Status

Clinical Trial Site

San Antonio, Texas, United States

Site Status

Clinical Trial Site

San Antonio, Texas, United States

Site Status

Clinical Trial Site

Richmond, Virginia, United States

Site Status

Countries

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United States

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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FX-322-202

Identifier Type: -

Identifier Source: org_study_id

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