Evaluate the Safety and Efficacy of EN001 in Patients With Charcot-Marie-Tooth Disease Type 1A(CMT1A) (Phase 1b: Open-label, Dose-escalation, Single-center; Phase 2a: Randomized, Double-blind, Placebo-controlled, Multicenter)

Trial statusRecruiting
Trial phasePhase 1, Phase 2
Trial typeInterventional
Biological sexAll
Age19+
SponsorENCell

About this trial

A Phase 1b/2a Clinical Trial to Evaluate the Safety and Efficacy of EN001 in Patients with Charcot-Marie-Tooth Disease type 1A(CMT1A) (Phase 1b: Open-label, Dose-escalation, Single-center; Phase 2a: Randomized, Double-blind, Placebo-controlled, Multicenter)

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Individuals who have voluntarily agreed to participate in this clinical trial.

Men and women aged 19 years or older at the time of providing written consent.

Genetic diagnosis: CMT1A type

Those with a CMT Neuropathy Score version 2 (CMTNSv2) between 2 or more and 20 or less.

Disqualifiers

Those with the following comorbidities confirmed at the time of screening

Subjects with neuromuscular diseases other than CMT1A or neuropathy- inducing factors (uremia) that may affect the safety and efficacy evaluation of this clinical trial, according to the judgment of the investigator.

Individuals diagnosed with type 1 or type 2 diabetes

Individuals diagnosed with active pulmonary tuberculosis

Trial design

Design model

Parallel

Treatments tested in this trial

  • EN001

    Drug

    * Cohort 1: EN001 Low dose administered intravenously (IV) 2 times at 4 week intervals. * Cohort 2: EN001 High dose administered intravenously (IV) 2 times at 4 week intervals.

  • EN001 Placebo

    Drug

    EN001 Placebo administered intravenously (IV) 2 times at 4 week intervals.

Treatment groups

27 Participants
are divided into 5 treatment groups
Group A: Phase1b - Cohort 1Active comparator 1 intervention
Group B: Phase 1b - Cohort 2Active comparator 1 intervention
Group C: Phase 2a - Cohort 1Active comparator 1 intervention
Group D: Phase 2a - Cohort 2Active comparator 1 intervention
Group E: Phase 2a - PlaceboPlacebo comparator 1 intervention

Trial outcomes

Primary outcomes

1

[Phase 1b] Dose limiting toxicity (DLT) and adverse drug reactions related to discontinuation of investigational product administration

Present the frequency and percentage of dose-limiting toxicity (DLT) occurrence across dose cohorts, along with detailed information on the types of DLTs. Adverse events related to discontinuation of clinical investigational drug administration, discontinuation of clinical investigational drug administration Regarding related adverse drug reactions, the number of subjects in each cohort, incidence rate (%), and Two-sided 95% confidence intervals and number of occurrences are presented.

Time frame
Up to 8 weeks
2

[Phase 2a] Change from baseline in the CMT Neuropathy Score (CMTNSv2) at Week 24.

For all efficacy outcome measures, descriptive statistics (number of subjects, mean, standard deviation, median, minimum, and maximum) will be presented by treatment group and assessment time point, along with two-sided 95% confidence intervals.

Time frame
at Week 24

Secondary outcomes

1

[Phase1b, Phase2a] CMTNSv2 score change

Present the subject count, mean, standard deviation, median, minimum, and maximum for the changes at each time point within each dosage group.

Time frame
At 4, 8, 18, and 24 weeks compared to baseline (Visit 2)
2

[Phase1b, Phase2a] CMT examination score change

Present the subject count, mean, standard deviation, median, minimum, and maximum for the changes at each time point within each dosage group.

Time frame
At 4, 8, 18, and 24 weeks compared to baseline (Visit 2)
3

[Phase1b, Phase2a] Rasch-modified CMTNSv2 score change

Present the subject count, mean, standard deviation, median, minimum, and maximum for the changes at each time point within each dosage group.

Time frame
At 4, 8, 18, and 24 weeks compared to baseline (Visit 2)
4

[Phase1b, Phase2a] Rasch-modified CMTES score change

Present the subject count, mean, standard deviation, median, minimum, and maximum for the changes at each time point within each dosage group.

Time frame
At 4, 8, 18, and 24 weeks compared to baseline (Visit 2)

Other outcomes

Sponsors and contacts

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