A Phase 1b/2a, Study Evaluating the Safety, PK/PD and Efficacy of NS101 in Healthy Volunteers and SSNHL Patients

NCT ID: NCT06249919

Last Updated: 2025-08-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1/PHASE2

Total Enrollment

138 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-01-19

Study Completion Date

2027-01-31

Brief Summary

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The goal of this 2 step-up, exploratory study is to test safey, tolerability and PK/PD profiles in healthy volunteers and safety, tolerability and efficacy in sudden sensorineural hearing loss patients as an early salvage therapy.

The main questions it aims to answer are:

1. whether is it safe and tolerable when healthy volunteers and sudden sensorineural hearing loss patients take multiple doses of NS101 against FAM19A5
2. whether is it effective in reversing hearing capability in sudden sensorineural hearing loss patients who fails to show sufficient recovery despite of oral standard steroid therapy.

Patients and heathly volunteers will be given NS101 15mg/kg or 30mg/kg systemically less than 3 months per protocol.

This is placebo controlled, double blinded study, which means there will be a group who receives placebo (i.e. fake drug) for study purpose.

Detailed Description

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Conditions

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Seneorineural Deafness Sudden Sensorineural Hearing Loss

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

A Phase 1b/2a, prospective, randomized, double-blind, placebo-controlled, multicenter, dose-escalation, exploratory study evaluating the safety, tolerability, pharmacokinetics/pharmacodynamics (PK/PD), and efficacy of multiple doses of NS101 in healthy adults and patients with sudden Sensorineural Hearing Loss
Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Group A

NS101 15mg/kg IV infusion Biweekly for 6weeks in Healthy Volunteers (active:placebo=6:3)

Group Type EXPERIMENTAL

NS101

Intervention Type BIOLOGICAL

NS101 is anti FAM19A5 antibody expected to play as a synapse organizer and reversing synapse dysfunction in various neurological diseases

Placebo

Intervention Type BIOLOGICAL

Placebo (i.e. fake drug without active pharmaceutical ingredient) of NS101

Group B

NS101 30mg/kg IV infusion Biweekly for 6weeks in Healthy Volunteers (active:placebo=6:3)

Group Type EXPERIMENTAL

NS101

Intervention Type BIOLOGICAL

NS101 is anti FAM19A5 antibody expected to play as a synapse organizer and reversing synapse dysfunction in various neurological diseases

Placebo

Intervention Type BIOLOGICAL

Placebo (i.e. fake drug without active pharmaceutical ingredient) of NS101

Cohort A

NS101 15mg/kg IV infusion Biweekly for 12weeks in Sudden Sensorineural Hearing Loss patients

Group Type ACTIVE_COMPARATOR

NS101

Intervention Type BIOLOGICAL

NS101 is anti FAM19A5 antibody expected to play as a synapse organizer and reversing synapse dysfunction in various neurological diseases

Cohort B

Placebo 15mg/kg IV infusion Biweekly for 12weeks in Sudden Sensorineural Hearing Loss patients

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type BIOLOGICAL

Placebo (i.e. fake drug without active pharmaceutical ingredient) of NS101

Interventions

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NS101

NS101 is anti FAM19A5 antibody expected to play as a synapse organizer and reversing synapse dysfunction in various neurological diseases

Intervention Type BIOLOGICAL

Placebo

Placebo (i.e. fake drug without active pharmaceutical ingredient) of NS101

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* unilateral ideopathic SSNHL greater than 45dB at the average of 4 frequencies in PTA (contralateral hearing is less than 30dB)
* Subject who has completed investigator-recognized standard treatment within 30 days of symptom onset and is able to undergo randomization visit within 35 days.
* Subjects who, in the opinion of the investigator, have received sufficient systemic steroid therapy for approximately 2 weeks recovery
* A combination regimen consisting of approximately 2 weeks of systemic steroid therapy and intratympanic steroid administration

Exclusion Criteria

* other otologic or systemic diseases
* retrocochlear lesion
Minimum Eligible Age

19 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Samsung Medical Center

OTHER

Sponsor Role collaborator

Severance Hospital

OTHER

Sponsor Role collaborator

Korea University Anam Hospital

OTHER

Sponsor Role collaborator

Neuracle Science Co., LTD.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Joseph Park, M.D.

Role: STUDY_DIRECTOR

Neuracle Science

Locations

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SCH University Hospital Bucheon

Bucheon-si, , South Korea

Site Status NOT_YET_RECRUITING

Chonam National University Hospital

Gwangju, , South Korea

Site Status RECRUITING

Inje University Ilsan Paik Hospital

Ilsan, , South Korea

Site Status RECRUITING

Myongji Hospital

Ilsan, , South Korea

Site Status NOT_YET_RECRUITING

Pusan National University Hospital

Pusan, , South Korea

Site Status RECRUITING

Hallym Sacred Heart Hospital

Pyeongchon, , South Korea

Site Status RECRUITING

Seoul National University Bundang Hospital

Seongnam, , South Korea

Site Status RECRUITING

Asan Medical Center

Seoul, , South Korea

Site Status RECRUITING

Catholic University Seoul St. Mary's Hospital

Seoul, , South Korea

Site Status RECRUITING

Korea University Anam Hospital

Seoul, , South Korea

Site Status RECRUITING

Korea University Anam Hospital

Seoul, , South Korea

Site Status NOT_YET_RECRUITING

Samsung Medical Center

Seoul, , South Korea

Site Status RECRUITING

Seoul National University Hospital

Seoul, , South Korea

Site Status RECRUITING

Yonsei University Severance Hospital

Seoul, , South Korea

Site Status RECRUITING

Ajou University Hospital

Suwon, , South Korea

Site Status NOT_YET_RECRUITING

Wonju Severance Christian Hospital

Wŏnju, , South Korea

Site Status RECRUITING

Countries

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South Korea

Central Contacts

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Yunkyung Choi

Role: CONTACT

+82269490409

Suhyun Cho

Role: CONTACT

+82269490409

Facility Contacts

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JD Lee, MD/PhD

Role: primary

HH Cho, MD/PhD

Role: primary

JM Lee, MD/PhD

Role: primary

DB Sim, MD/PhD

Role: primary

SG Kong, MD/PhD

Role: primary

HJ Lee, MD/PhD

Role: primary

JJ Song, MD/PhD

Role: primary

HJ Park, MD/PhD

Role: primary

SN Park, MD/PhD

Role: primary

JY Park, MD/PhD

Role: primary

GJ Im, MD/PhD

Role: primary

IJ Moon, MD/PhD

Role: primary

MH Seo, MD/PhD

Role: primary

JY Choi, MD/PhD

Role: primary

YH Jeong, MD/PhD

Role: primary

YJ Seo, MD/PhD

Role: primary

Other Identifiers

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NS101_P2_04

Identifier Type: -

Identifier Source: org_study_id

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