NCT03913143

Brief Summary

The purpose of this double-masked, randomized, controlled, multiple-dose study is to evaluate the efficacy, safety, tolerability and systemic exposure of sepofarsen (QR-110) administered via intravitreal injection in subjects with Leber's Congenital Amaurosis (LCA) due to the CEP290 p.Cys998X mutation after 24 months of treatment

Trial Health

62
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
36

participants targeted

Target at P25-P50 for phase_2

Timeline
Completed

Started Apr 2019

Typical duration for phase_2

Geographic Reach
9 countries

14 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 21, 2019

Completed
1 month until next milestone

Study Start

First participant enrolled

April 4, 2019

Completed
8 days until next milestone

First Posted

Study publicly available on registry

April 12, 2019

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2022

Completed
1.1 years until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2023

Completed
Last Updated

March 17, 2022

Status Verified

February 1, 2022

Enrollment Period

2.8 years

First QC Date

February 21, 2019

Last Update Submit

March 2, 2022

Conditions

Keywords

LCA10CEP290p.Cys998Xc.2991+1655A>GLeber's Congenital AmaurosisAntisense oligonucleotideRNA therapyQR-110sepofarsen

Outcome Measures

Primary Outcomes (1)

  • Change in BCVA

    Change in Best-corrected visual acuity (BCVA) relative to baseline after 12 months of treatment versus sham-procedure

    12 months

Secondary Outcomes (16)

  • Change from baseline in BCVA ≤ -0.3 LogMAR

    12 and 24 months

  • Clinical meaningful improvement in subjects with BCVA ≤ 1.7 LogMAR

    12 and 24 months

  • Change in BCVA based on FrACT

    12 and 24 months

  • Change in mobility course score

    12 and 24 months

  • Change in ellipsoid zone (EZ) width/area assessed by SD-OCT

    12 and 24 months

  • +11 more secondary outcomes

Study Arms (3)

Group 1: Dose 1 sepofarsen (QR-110)

EXPERIMENTAL

Initial loading dose, followed by maintenance doses at month 3 and every 6 months there after, administered by intravitreal injection (24 months duration of treatment). After 12 months treatment of the contralateral eye may be initiated

Drug: sepofarsen

Group 2: Dose 2 sepofarsen (QR-110)

ACTIVE COMPARATOR

Initial loading dose, followed by maintenance doses at month 3 and every 6 months there after, administered by intravitreal injection (24 months duration of treatment). After 12 months treatment of the contralateral eye may be initiated

Drug: sepofarsen

Group 3: Sham

SHAM COMPARATOR

Sham procedure (no experimental drug administered), Day 1, month 3 and every six months there after. After 12 months cross over to active study drug may be initiated

Other: Sham

Interventions

RNA antisense oligonucleotide for intravitreal injection

Also known as: QR-110
Group 1: Dose 1 sepofarsen (QR-110)Group 2: Dose 2 sepofarsen (QR-110)
ShamOTHER

Sham-Procedure (no experimental drug administered)

Group 3: Sham

Eligibility Criteria

Age8 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Male or female, ≥ 8 years of age at Screening with a clinical diagnosis of LCA10 and a molecular diagnosis of homozygosity or compound heterozygosity for the c.2991+1655A\>G mutation, based on genotyping analysis at Screening. A historic genotyping report from a certified laboratory is acceptable with Sponsor approval.
  • BCVA better or equal to Logarithm of the Minimum Angle of Resolution (LogMAR) +3.0 (Hand Motion), and equal to or worse than LogMAR +0.4 in the treatment eye.
  • Detectable outer nuclear layer (ONL) in the area of the macula.
  • An electroretinogram (ERG) result consistent with LCA. A historic ERG result may be acceptable for eligibility.

You may not qualify if:

  • Presence of any significant ocular or non-ocular disease/disorder (including medication and laboratory test abnormalities).
  • History or presence of ocular herpetic diseases.
  • Presence of any active ocular infection in the either eye.
  • Presence of lens opacities/cataracts in the treatment eye.
  • Current treatment or treatment within the past 12 months with therapies known to influence the immune system.
  • History of glaucoma, or an IOP greater than 24 mmHg, at is not controlled with medication.
  • History of amblyopia
  • Use of any investigational drug or device within 90 days or 5 half-lives of Day 1, whichever is longer, or plans to participate in another study of a drug or device during the PQ-110-003 study period.
  • Any prior receipt of genetic or stem-cell therapy.
  • Known hypersensitivity to antisense oligonucleotides or any constituents of the injection.
  • Pregnant and breastfeeding subjects.
  • BCVA equal to or better than LP (logMAR +4), using the best BCVA reading at Month 12 and based on ETDRS or BRVT.
  • Detectable outer nuclear layer (ONL) in the area of the macula.
  • Clear ocular media and adequate pupillary dilation to permit good quality retinal imaging.
  • Presence of any significant ocular or non-ocular disease/disorder (including medication and laboratory test abnormalities).
  • +8 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (14)

University of Iowa

Iowa City, Iowa, 52242, United States

Location

Universitair Ziekenhuis Gent (UZ)

Ghent, Belgium

Location

INRET Clínica/ Santa Casa de Misericórdia de Belo Horizonte

Belo Horizonte, Minas Gerais, 30150270, Brazil

Location

Federal University of São Paulo - Hospital São Paulo (UNIFESP-HSP)

São Paulo, São Paulo, 04023-062, Brazil

Location

The Hospital for Sick Children - SickKids

Toronto, Ontario, M5G 2L3, Canada

Location

McGill University Health Centre - Centre for Innovative Medicine

Montreal, Quebec, H4A 3J1, Canada

Location

Centre de maladies rares CHNO des Quinze Vingt

Paris, 75012, France

Location

Hospital Civil de Strasbourg

Strasbourg, 67091, France

Location

Justus-Liebig Universität - Department of Ophthalmology

Giessen, 35392, Germany

Location

University of Tuebingen - Inst. for Ophthalmic Research

Tübingen, 72076, Germany

Location

Eye Clinic University of Campania Luigi Vanvitelli

Naples, 80131, Italy

Location

Amsterdam University Medica Center - Locatie AMC

Amsterdam, 1105 AZ, Netherlands

Location

Het Oogziekenhuis Rotterdam

Rotterdam, 3011 BH, Netherlands

Location

Moorfields Eye Hospital - NHS Foundation Trust

London, EC1V 2PD, United Kingdom

Location

Related Links

MeSH Terms

Conditions

Leber Congenital Amaurosis 10BlindnessLeber Congenital AmaurosisVision DisordersSensation DisordersNeurologic ManifestationsEye DiseasesEye Diseases, HereditaryEye AbnormalitiesRetinal DiseasesMeckel Syndrome, Type 4Optic Atrophy, Hereditary, Leber

Interventions

salicylhydroxamic acid

Condition Hierarchy (Ancestors)

Nervous System DiseasesSigns and SymptomsPathological Conditions, Signs and SymptomsGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesCongenital AbnormalitiesOptic Atrophies, HereditaryOptic AtrophyOptic Nerve DiseasesCranial Nerve DiseasesHeredodegenerative Disorders, Nervous SystemNeurodegenerative DiseasesMitochondrial DiseasesMetabolic DiseasesNutritional and Metabolic Diseases

Study Officials

  • ProQR Medical Monitor

    ProQR Therapeutics

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 21, 2019

First Posted

April 12, 2019

Study Start

April 4, 2019

Primary Completion

January 31, 2022

Study Completion

March 1, 2023

Last Updated

March 17, 2022

Record last verified: 2022-02

Data Sharing

IPD Sharing
Will not share

Locations