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A Study to Assess Nomlabofusp in Adolescents and Children With Friedreich's Ataxia

A Phase 1 Study to Assess the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Subcutaneous Nomlabofusp in Adolescents and Children With Friedreich's Ataxia

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06681766
Enrollment
18
Registered
2024-11-08
Start date
2024-12-06
Completion date
2025-04-27
Last updated
2026-07-10

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

Conditions

Friedreich Ataxia

Brief summary

The goal of this clinical trial is to evaluate the safety and tolerability of nomlabofusp (CTI-1601) in adolescents and children with Friedreich's ataxia (FRDA).

Detailed description

This is a randomized, double-blind, placebo-controlled study evaluating a weight-based dose of nomlabofusp versus placebo in adolescents and children with FRDA. The study will consist of at least two cohorts with at least 12 to 15 participants in each cohort. Participants will be dosed once daily (QD) for 7 days.

Interventions

Nomlabofusp is a recombinant fusion protein provided in a sterile, preservative-free buffered solution for subcutaneous injection intended to deliver human frataxin, the protein deficient in Friedreich's ataxia.

DRUGPlacebo

The placebo is a sterile, preservative-free, clear liquid for subcutaneous injection.

Sponsors

Larimar Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
2 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

1. Subject has genetically confirmed diagnosis of FRDA manifested by homozygous GAA repeat expansions, with repeat sizing (if available) included on the diagnosis report. 2. Male or female subjects ≥ 2 to \< 18 years of age at screening. 3. Subjects must weigh ≥ 10.0 kg. 4. Subject must be able to traverse a distance of 25 feet with or without some assistive device (e.g., cane, walker, crutches, self-propelled wheelchair) and meet the following requirements: 1. Be able to sit upright with thighs together and arms crossed without requiring support on more than 2 sides; 2. Be able to transfer from bed to chair independently or with assistance if, in the opinion of the investigator, the degree of physical disability does not result in undue risk to the subject while participating in the study; and 3. Perform basic age-appropriate daily care, such as feeding themselves and personal hygiene, with minimal assistance.

Exclusion criteria

1. Subjects who are confirmed as compound heterozygous (GAA repeat expansion on only 1 allele) for FRDA. 2. Subject has any condition, disease, or situation, including a cardiac condition or disease, that in the opinion of the investigator could confound the results of the study or put the subject at undue risk, making participation inadvisable. 3. Subjects currently receiving or having received omaveloxolone within 30 days prior to Screening.

Design outcomes

Primary

MeasureTime frameDescription
Number of AEs, TEAEs, related TEAEs, Grade 3/4 TEAEs, and SAEsUp to 72 days (including screening)Number
Number of subjects with ISRsUp to 37 daysNumber
Change from baseline in electrocardiogram (ECG) parameter - heart rate (HR)Baseline, Day 7Number
Change from baseline in electrocardiogram (ECG) parameter - PR intervalBaseline, Day 7Number
Change from baseline in electrocardiogram (ECG) parameter - QRS complexBaseline, Day 7Number
Change from baseline in electrocardiogram (ECG) parameter - QT intervalBaseline, Day 7Number
Change from baseline in electrocardiogram (ECG) parameter - QTcF (Corrected QT Interval)Baseline, Day 7Number
Change from baseline in echocardiogram (ECHO) parameter - ejection fraction (EF)Baseline, Day 7Number
Change from baseline in echocardiogram (ECHO) parameter - left ventricular end-diastolic volume (LV EDV)Baseline, Day 7Number
Change from baseline in echocardiogram (ECHO) parameter - left ventricular end-systolic volume (LV ESV)Baseline, Day 7Number
Change from baseline in echocardiogram (ECHO) parameter - relative wall thickness (RWT)Baseline, Day 7Number
Change from baseline in echocardiogram (ECHO) parameter - left ventricular mass (LVM)Baseline, Day 7Number
Change from baseline in echocardiogram (ECHO) parameter - left ventricular posterior wall thicknessBaseline, Day 7Number
Change from baseline in echocardiogram (ECHO) parameter - septal wall thicknessBaseline, Day 7Number
Change from baseline in echocardiogram (ECHO) parameter - mitral valve inflow DopplerBaseline, Day 7Number
Change from baseline in echocardiogram (ECHO) parameter - tissue DopplerBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - sodiumBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - potassiumBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - glucoseBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - blood urea nitrogenBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - creatinineBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - calcium, chlorideBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - phosphorusBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - total proteinBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - total CO2Baseline, Day 7Number
Change from baseline in clinical laboratory assessment - albuminBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - ASTBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - ALTBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - GGTBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - ALPBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - total bilirubinBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - uric acidBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - HbA1cBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - hemoglobinBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - hematocritBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - RBC countBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - RDWBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - MCVBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - MCHBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - platelet countBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - WBC countBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - ANCBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - EosinophilsBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - MonocytesBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - BasophilsBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - LymphocytesBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - BandsBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - NeutrophilsBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - CholesterolBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - HDL cholesterolBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - LDL cholesterolBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - TriglyceridesBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - very low-density lipoprotein cholesterolBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - pHBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - proteinBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - bloodBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - ketonesBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - bilirubinBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - urobilinogenBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - nitritesBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - leukocyte esteraseBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - colorBaseline, Day 7Number
Change from baseline in clinical laboratory assessment - specific gravityBaseline, Day 7Number
Change from baseline in pulse rateBaseline, Day 7Number
Number of subjects with abnormal physical examinationsUp to 72 days (including screening)Number
Number of subjects with suicidal ideation, suicidal behavior, and suicidal ideation or behavior based on the Columbia Suicide Severity Rating Scale (C-SSRS)Up to 72 days (including screening)Number
Number of subjects who discontinue treatment and/or studyUp to 37 daysNumber

Secondary

MeasureTime frameDescription
AUC0-lastDays 1, 7Area under the concentration-time-curve to the last quantifiable timepoint
CmaxDays 1, 7Maximum observed concentration
TmaxDays 1, 7Time of maximum observed concentration
CtroughDays 1, 7Predose concentration
Change from baseline in FXN concentrations normalized to total protein observed in buccal cells collected from cheek swabsBaseline, Day 7Number

Countries

United States

Contacts

STUDY_CHAIRLarimar Therapeutics, Inc.

Larimar Therapeutics, Inc.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 11, 2026