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Duchenne Muscular DystrophyPhase 1NCT05338099

Determine the Safety and Dose of EN001 in Patients With Duchenne Muscular Dystrophy(DMD)

A Phase 1 study testing EN001 in people with Duchenne Muscular Dystrophy, run by ENCell at 1 site in South Korea.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Open-label, Dose-escalation, Phase 1 Clinical Trial to Determine the Safety and Dose of EN001 in Patients with Duchenne Muscular Dystrophy(DMD) Read more about this study

Who is it for?
Ages 2 to 18 years, men only
Conditions the study is for
Duchenne Muscular Dystrophy
What is being tested?
EN001
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
7 participants
Where
1 siteSouth Korea
Study dates
18 Jan 2022to 28 Dec 2022
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 2 to 18 years
  • Men only
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Those aged 2 to 18 years old
  • Male
  • Those who are diagnosed with DMD due to a mutation in the dystrophin gene identified by a genetic test
  • Phenotypic evidence of DMD
  • Clinical signs or symptoms (proximal weakness, waddling gait, Gowers maneuver)
  • Elevated serum creatine kinase level
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  • Those who have been using systemic corticosteroids at a stable dose for 24 weeks prior to screening and are expected to maintain the constant dose throughout the study period
  • Those who agree to use effective contraceptive measures until the short-term follow-up period of the clinical trial. In addition, their partner must also use a medically acceptable method of contraception (ie, oral contraceptives for women) for the same period.
  • Those who are willing to agree with the ICF and whose parent or representative is willing to provide written consent for the subject's participation in the clinical trial

Who cannot join

  • Those who have clinical signs or symptoms of cardiomyopathy, defined as LVEF <50% on echocardiography at screening
  • If ventilatory support is required during the day or if invasive mechanical ventilation via tracheostomy is used (Non-invasive ventilation such as positive pressure ventilation is allowed at night)
  • If hepatitis B core antibody and hepatitis C antibody are positive
  • If there is a history of major surgery within 12 weeks or it is expected during the study period
  • Those who have been exposed to gene therapy or genome editing within 24 weeks from the screening
  • Those who have experience with stem cell therapy
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  • Those who have been administered Translarna granules (Ataluren) within 24 weeks from the screening
  • Those who are receiving treatment (other than corticosteroids) that may affect muscle strength or function within 12 weeks prior to screening
  • If laboratory test values are abnormal at the time of screening
  • Hemoglobin <10 g/dL
  • Serum albumin <2.5 g/dL
  • Platelet count <50,000/ml
  • Abnormal GGT or total bilirubin (>laboratory's upper limit of normal)
  • Abnormal renal function (Serum creatinine >1.5 Times laboratory's upper limit of normal)"
  • Those with significant neuromuscular or genetic diseases other than DMD
  • Those with significant heart, lung, liver, kidney, hematological, immunological, behavioral disease, or other clinically significant diseases including malignant tumors
  • Those who have a previous or current medical condition that may adversely affect the safety of the subject, make it difficult to complete treatment, or affect the evaluation of clinical trial results at the discretion of the investigator
  • Those who do not have the will or ability to comply with clinical trial procedures at the discretion of the investigator

Trial locations and contacts

1 site in 1 country.

South Korea1 site
  • Samsung Medical Center

    Seoul

Other trials in South Korea

About this study

Official title: Open-label, Dose-escalation, Phase 1 Clinical Trial to Determine the Safety and Dose of EN001 in Patients With Duchenne Muscular Dystrophy(DMD)

Open-label, Dose-escalation, Phase 1 Clinical Trial to Determine the Safety and Dose of EN001 in Patients with Duchenne Muscular Dystrophy(DMD)

Read the detailed description

It is the first in human (FIH), 3+3 design clinical trial to evaluate the safety and tolerability and determine the maximum tolerated dose (MTD) of EN001 (allogeneic umbilical cord-derived mesenchymal stem cells) in the treatment of Duchenne Muscular Dystrophy (DMD).

Being tested
EN001
Medical subject headings
Muscular Dystrophy, Duchenne

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • EN001Drug

    Also called EN001 (Allogeneic early-passage Wharton's jelly-derived mesenchymal stem cells)

    EN001 intravenously (IV) in the treatment of Duchenne Muscular Dystrophy (DMD) Dosage for each group is as follows.

    Dose group A (Low dose): 5.0x10^5 cells/kg

  • EN001Drug

    Also called EN001 (Allogeneic early-passage Wharton's jelly-derived mesenchymal stem cells)

    EN001 intravenously (IV) in the treatment of Duchenne Muscular Dystrophy (DMD) Dosage for each group is as follows.

    Dose group B (High dose): 2.5x10^6 cells/kg

Study groups in NCT05338099
Study groupRoleWhat they receive
Dose group A (Low dose)ExperimentalParticipants will receive EN001 intravenously (IV) once on Day 1. Before 30 minutes EN001 dosing, there will be premedication (solu-cortef 1-2 mg/kg + Lorazepam 0.1 mg/kg (max 2 mg) + Ondansetron (5 mg/m^2) + Chlorpheniramine (1 mg for 2~6 years old; 2 mg for 6~12 years old; 4 mg for over 12 years old)+ Acetaminophen) administered to assure safety of participants from issues such as immune rejection, due to the process of thawing in a frozen state of EN001.
Receives: Drug: EN001
Dose group B (High dose)ExperimentalParticipants will receive EN001 intravenously (IV) once on Day 1. Before 30 minutes EN001 dosing, there will be premedication (solu-cortef 1-2 mg/kg + Lorazepam 0.1 mg/kg (max 2 mg) + Ondansetron (5 mg/m^2) + Chlorpheniramine (1 mg for 2~6 years old; 2 mg for 6~12 years old; 4 mg for over 12 years old)+ Acetaminophen) administered to assure safety of participants from issues such as immune rejection, due to the process of thawing in a frozen state of EN001.
Receives: Drug: EN001

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of participants of any Adverse Events (AEs)/Serious Adverse Events (SAEs) related investigational product

    Number of participants with treatment-related adverse events as assessed by CTCAE v5.0

    Measured: Week 12 after treatment

  2. Determination of Dose-limiting toxicity (DLT) levels of EN001

    Among the adverse events occurring for 2 weeks after administration of the investigational product, Grade 3 or higher adverse events according to CTCAE 5.0

    Measured: Up to Week 2 after dosing on Day 0

  3. Determination of Maximum tolerated dose (MTD) levels of EN001

    Among the adverse events occurring for 2 weeks after administration of the investigational product, Grade 3 or higher adverse events according to CTCAE 5.0 Maximum tolerated dose defines the evaluated maximum dose level in which greater than two participants of six participants experience Dose-limiting toxicity (DLT) under the dose level. The dose level where two participants of six participants experience DLT will be the maximum tolerated dose.

    Measured: Up to Week 2 after dosing on Day 0

  4. Number of participants with Vital Signs abnormalities

    Vital Signs include blood pressure (mmHg), pulse (times/minute), respiratory rate (times/minute), and body temperature (℃) and will be assessed by CTCAE v 5.0 to evaluate safety and tolerability of EN001.

    The number of participants with at least one potentially clinically significant abnormal vital sign finding were reported as treatment emergent adverse events (TEAEs).

    Measured: Week 12 after screening

  5. Number of participants with clinically significant abnormalities of Physical Examinations

    Physical Examinations include general appearance, head, ears/eyes/nose/throat, cardiovascular, respiratory, abdomen, skin, lymph nodes, extremities, musculoskeletal and neurologic and will be assessed by CTCAE v 5.0 to evaluate safety and tolerability of EN001.

    Number of participants with potentially clinically significant abnormalities in physical examinations were reported as TEAEs.

    Measured: From screening up to Week 12

  6. Number of participants with abnormalities of Laboratory Parameters

    Laboratory Parameters include hematology, chemistry laboratory tests, urinalysis, coagulation test and plasma viral load test and will be assessed by CTCAE 5.0 to evaluate safety and tolerability of EN001.

    Number of participants with at least one potentially clinically significant abnormal finding were reported as TEAEs.

    Measured: From screening up to Week 12

  7. Number of participants with abnormalities of 12-lead Electrocardiography (ECG)

    Categorical summarization ECG criteria were as follows:

    1. QT interval, QTcB, QTcF and QTcP: increase from baseline >30 millisecond [ms] or 60 ms; absolute value > 450 ms, >480 ms, and > 500 ms;
    2. heart rate (HR): change from baseline ≥20 beats per minute [bpm] and absolute value≤50 bpm or ≥120 bpm;
    3. PR interval: absolute value ≥220 ms and increase from baseline≥20 ms;
    4. QRS: ≥120 ms.

    Measured: From screening to baseline on Day 0 (Predose to end of infusion and 90 min after completion of infusion)

Secondary outcomes (4)
  1. Incidence of adverse events (AEs)

    Occurrence of any adverse reactions, development of new blood clots, tumors, immune responses (like autoimmune reactions) and death, and/or serious adverse events related investigational product will be summarized by actual treatment groups respectively.

    Measured: From screening to the end of treatment/withdrawal visit (up to approximately 5 years per subject)

  2. Number of participants with abnormalities of Vital Signs, Physical Findings, and Laboratory Parameters

    Abnormalities of Vital Signs, Physical Findings, and Laboratory parameters (as described above) will be collected and analyzed, and then assessed by CTCAE 5.0 to evaluate the long-term safety of EN001.

    Measured: From screening to the end of treatment/withdrawal visit (up to approximately 5 years per subject)

  3. Rate of change at the time of visit compared to baseline (percent [%]) in CK level

    Creatinine kinase (CK) level will be collected and analyzed to evaluate the exploratory efficacy of EN001.

    • CK level(%) = (CK level after dosing - CK level in baseline)/(CK level in baseline)*100

    Measured: From screening up to the end of support (up to approximately 5 years per subject at each visit)

  4. Change from baseline in Function tests

    Function tests measured by North Star Ambulatory Assessment (NSAA), Six Minute Walk Test (6MWT), Myometry. and Lung capacity (and only K-Cross Motor Function Measure (KGMFM) will be performed under 5 years old) will be collected and analyzed to evaluate the exploratory efficacy of EN001.

    • Function tests = value in visit - value in baseline

    Measured: Screening and baseline on Day -1 (up to approximately 5 years per subject after Week 12)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Apr 2022
  2. Study start18 Jan 2022
  3. Primary completion28 Dec 2022
  4. Study completion28 Dec 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
7 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05338099
Sponsor's protocol ID
ENCell_2020_01
Status last verified
Aug 2024
First submitted
6 Jan 2022
Last updated
30 Aug 2024
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing EN001 in people with Duchenne Muscular Dystrophy, run by ENCell at 1 site in South Korea.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 18 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 30 Aug 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of participants of any Adverse Events (AEs)/Serious Adverse Events (SAEs) related investigational product (time frame: Week 12 after treatment). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Aug 2024.

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