Capricor Deramiocel (CAP-1002) HOPE-3 Clinical Trial for Duchenne muscular dystrophy

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• Male subjects at least 10 years of age at time of consent who are willing and able to provide informed consent to participate in the trial if ≥ 18 years of age or assent with parental or guardian informed consent if < 18 years of age. If a third-party caregiver is involved, they must provide informed consent.
• Confirmatory genetic testing performed to have reached a diagnosis of DMD at any time in the past or currently performed at a Clinical Laboratory Improvement Amendments (CLIA)-certified laboratory or equivalent.
• Performance of the Upper Limb test (PUL) entry item scores 2-6 and total PUL score less than or equal to 40. For Cohort A only: enrollment of patients with PUL entry score 6, Exon 44 skipping amenable, and/or Exon 3 through 7 deletions will be capped at no more than 10% of the total study population (approximately 6 patients with these characteristics).
• Reduced ability to walk/run (if ambulatory): subjects must take more than 10 seconds for the 10-meter walk/run (i.e., velocity < 1 meter/second).
• If non-ambulatory, loss of independent ambulation between 10th and 18th year birthday (standing unassisted or ability to take, at most, several steps independently is not considered ambulation). Subjects who are considered non-ambulatory between the ages of 9 and10 may be enrolled with prior approval from the sponsor.
• Receiving standard of care therapy at an experienced, multidisciplinary DMD center as evidenced by regular cardiac and pulmonary monitoring, systemic glucocorticoid treatment, and at-home range of motion exercises.
• Treatment with systemic glucocorticoids for at least 12 months and at a stable dose at least 6 months prior to study participation, except for either weight-based dose adjustment or a decrease in steroid dose of ≤ 10% for toxicity. For patients on chronic deflazacort, treatment with an equivalent dose of prednisone or prednisolone for a period of ≤ 30 days to bridge lack of availability of deflazacort during the 6 months prior to randomization is acceptable.
• Current and up-to-date immunizations according to children and adolescent Centers for Disease Control and Prevention immunization schedule at the discretion of the Investigator.
• Adequate venous access for parenteral IP infusions and routine blood collection.
• Assessed by the Investigator as willing and able to comply with the requirements of the trial.
• Sexually active subjects and their partners who are fertile must agree to use effective method(s) of contraception.

• Left ventricular ejection fraction (LVEF) less than or equal to 35% prior to randomization.
• Elbow-flexion contractures > 30° in both extremities.
• Body mass index (BMI) > 45.
• Percent predicted forced vital capacity (FVC%) < 35% within 6 months prior to randomization.
• Inability to perform consistent PUL 2.0 measurement within ± 2 points without shoulder domain or within ± 3 points with shoulder domain during paired testing at screening.
• Risk of near-term respiratory decompensation in the judgment of the Investigator, or the need for initiation of day and night non-invasive ventilator support as defined by serum bicarbonate ≥ 29 mmol/L at screening.
• History of non DMD-related chronic respiratory disease requiring ongoing or intermittent treatment, including, but not limited to, asthma, bronchitis, and tuberculosis.
• Acute respiratory illness within 30 days prior to screening and during screening.
• Initiation of nocturnal non-invasive ventilation within 30 days prior to screening.
• Planned or anticipated thoracic or spinal surgery within the 6 months following randomization.
• Planned or anticipated lower extremity surgery within the 6 months following randomization, if ambulatory.
• Known hypersensitivity to dimethyl sulfoxide (DMSO) or bovine products.
• Initiation of treatment with metformin or insulin within 3 months prior to randomization.
• Initiation of treatment with an FDA-approved exon skipping therapy for the treatment of DMD and/or non-weight based adjustments within 12 months prior to randomization.
• Treatment with human growth hormone within 3 months prior to randomization, unless on a stable dose allowing for weight-based dose adjustments (as determined by the site Investigator) for at least 24 months prior to randomization.
• Treatment with a cell therapy product within 12 months prior to randomization; any prior exposure to deramiocel will be excluded.
• Treatment with an investigational product within 6 months prior to randomization.
• History, or current use, of drugs or alcohol that could impair the ability to comply with participation in the trial.
• Inability to comply with the investigational plan and follow-up visit schedule for any reason, in the judgment of the investigator.
• Inability to undergo a cardiac MRI. For Cohort B Only - Subjects with a known hypersensitivity to gadolinium may forgo the LGE assessment but must complete a cardiac MRI without contrast. For Cohort B Only - Subjects who are unable to tolerate gadolinium due to renal insufficiency as measured by an estimated Glomerular Filtration Rate (eGFR) less than 60 mL/min/1.73 m2 may forgo the LGE assessment but must complete a cardiac MRI without contrast.
• For Cohort B: Subjects with PUL entry score 6, Exon 44 skipping amenable, or Exon 3 through 7 deletions are excluded from participation.