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Safety and Efficacy of P-188 NF in DMD Patients

Primary Purpose

Duchenne Muscular Dystrophy

Status
Terminated
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
P-188 NF
Sponsored by
Phrixus Pharmaceuticals, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Duchenne Muscular Dystrophy

Eligibility Criteria

12 Years - 25 Years (Child, Adult)MaleDoes not accept healthy volunteers

Inclusion Criteria:

  • Male
  • 12 - 25 years of age
  • Have phenotypic evidence of DMD
  • Have documentation of the presence of a deletion, duplication or point mutation in the dystrophin gene
  • Willingness to receive daily subcutaneous (SC) injections of up to 3 mL
  • Have LVEDV that is ≥100% of normal corrected for body mass when measured by cardiac MRI
  • Have impaired respiratory function (percent predicted PEF ≤80%)
  • Have ability to perform PEF within 15% of first assessment
  • Have mild to moderate fibrosis of the heart as assessed by MRI
  • Have left ventricular ejection fraction fractions of <50%
  • Have been non-ambulatory for at least six months
  • Be on corticosteroids, with a stable treatment regimen for at least six months
  • Have been on a stable treatment regimen for cardiac dysfunction for at least 3 months prior to baseline (ACE inhibitors, beta blockers and/or ARBs)
  • Have clinically acceptable screening values, including serum creatinine levels blood urine nitrogen, cystatin C
  • Have willingness and ability to comply with scheduled visits, drug administration, drug administrative plan, study procedures, laboratory tests, and treatment restrictions
  • Be likely to survive for the duration of the treatment in the investigator's opinion
  • Have ability to provide written informed consent (parent/guardian consent if applicable)/assent (if <18 years of age).

Exclusion Criteria:

  • Exposure to another investigational drug within 90 days prior to start of study treatment
  • Have DMD-related hypoventilation for which daytime assisted ventilation is needed
  • Unable to perform pulmonary function testing
  • Have respiratory failure
  • Unable or unwilling to undergo scan with gadolinium as contrast agent
  • Unable or unwilling to undergo echocardiography
  • Have severe fibrosis of the heart as assessed by MRI
  • Used carnitine, creatine, glutamine, oxatomide, coenzyme Q10 or vitamin E or any herbal medicines with 30 days prior to baseline
  • Have a history of major surgical procedure within 30 days prior to start of study treatment
  • Have ongoing immunosuppressive therapy (other than corticosteroids)
  • Are participating in a therapeutic clinical trial
  • Are on any concomitant medication with a depressive or stimulating effect on respiration or the respiratory tract
  • Have a diagnosis of chronic lung disease
  • Chronic use of beta-2 agonists or any other bronchodilating medication (chronic use is daily intake for more than 14 days within the last 6 months)
  • Have moderate or severe hepatic impairment or moderate to severe renal impairment
  • Have expectation of major surgical procedure during the conduct of the study
  • Have prior or ongoing medical conditions that makes it unlikely that the course of treatment or follow-up would be completed, or could impair the assessment of the treatment results
  • Have ever previously received P-188 NF as a therapeutic agent

Sites / Locations

  • Cincinnati Children's Hospital Medical Center

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

P-188 NF

Arm Description

P-188 NF, 5 mg/Kg administered subcutaneously daily for 1 year

Outcomes

Primary Outcome Measures

Forced vital capacity (FVC)
Change from baseline (pre-treatment) to end of treatment (52 weeks)

Secondary Outcome Measures

Maximal inspiratory pressure (MIP)
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Maximal expiratory pressure (MEP)
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Peak cough flow (PCF)
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Left ventricular end-diastolic volume (LVEDV)
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Ejection Fraction (EF)
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Degree of fibrosis as assessed by cardiac MRI
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Performance of upper limb (PUL) test
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Cardiac troponin I
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Muscle creatine kinase
Change from baseline (pre-treatment) to end of treatment (52 weeks)

Full Information

First Posted
June 5, 2018
Last Updated
January 9, 2023
Sponsor
Phrixus Pharmaceuticals, Inc.
Collaborators
Charley's Fund
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1. Study Identification

Unique Protocol Identification Number
NCT03558958
Brief Title
Safety and Efficacy of P-188 NF in DMD Patients
Official Title
An Exploratory, Open-label Study to Assess the Effect of P-188 NF (Carmeseal-MD) on Safety, on Respiratory and Cardiac Dysfunction and on Upper Limb Strength in Non-ambulatory Patients With Duchenne Muscular Dystrophy (DMD)
Study Type
Interventional

2. Study Status

Record Verification Date
September 2021
Overall Recruitment Status
Terminated
Why Stopped
Terminated due to lack of funding.
Study Start Date
August 8, 2018 (Actual)
Primary Completion Date
September 1, 2021 (Actual)
Study Completion Date
September 1, 2021 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Phrixus Pharmaceuticals, Inc.
Collaborators
Charley's Fund

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This is an open-label study to evaluate the safety, tolerability and efficacy of daily, subcutaneous dosing with P-188 NF (Carmeseal-MD™) in non-ambulatory boys with Duchenne Muscular Dystrophy (DMD). This study will determine if continuous treatment with Carmeseal-MD™ can maintain or improve pulmonary function, and skeletal and cardiac muscle function, compared to baseline, in boys 12-25 years of age.
Detailed Description
Based on a large number of studies conducted in pre-clinical models of muscular dystrophy and heart failure, this study is being undertaken to explore the safety and efficacy of Carmeseal-MD™ (P-188 NF) on endpoints associated with cardiovascular, pulmonary and musculoskeletal function. These preclinical studies indicate that Carmeseal-MD™ acts to stabilize fragile cell membranes thus maintaining cell function and preventing fibrosis, necrosis and apoptosis in animal models of muscular dystrophy. This is a single arm, open label trial that is designed to provide a first evaluation of Carmeseal-MD™ in non-ambulatory patients with DMD. It assigns up to ten (10) patients to receive a fixed dose of 5 mg of P-188 NF per Kg patient body weight (adjusted individually for each patient at baseline visit) injected subcutaneously once-a-day for 52 weeks. The first 3 enrolled subjects (Group 1) will be at least 18 years of age and up to 25 years of age. Enrollment of Group 2 will begin after a review of Group 1 safety data through 28 days of dosing of Carmeseal-MD™. Group 2 will include subjects that are at least 12 years of age and up to 25 years old. Evaluations will be for Carmeseal-MD™ administered in addition to the current standard of care therapies and interventions such as corticosteroids, ACE inhibitors, ARBs, beta blockers, bronchodilator medications and airway clearance, cough assist and non-invasive ventilation devices. The major hypothesis for the trial is that measures of function of skeletal and cardiac muscle that decline over the course of the disease will either remain stable or improve with P-188 NF treatment when a decline would be expected. To assess these possible beneficial effects, comparisons are planned between pre- and post-treatment on measures of function for the various body systems affected by DMD.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Duchenne Muscular Dystrophy

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
2 (Actual)

8. Arms, Groups, and Interventions

Arm Title
P-188 NF
Arm Type
Experimental
Arm Description
P-188 NF, 5 mg/Kg administered subcutaneously daily for 1 year
Intervention Type
Drug
Intervention Name(s)
P-188 NF
Other Intervention Name(s)
Carmeseal-MD
Intervention Description
Poloxamer administered daily via sc injection at 5 mg/Kg
Primary Outcome Measure Information:
Title
Forced vital capacity (FVC)
Description
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Time Frame
Baseline, Days 91, 182, 273, 364
Secondary Outcome Measure Information:
Title
Maximal inspiratory pressure (MIP)
Description
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Time Frame
Baseline, Days 91, 182, 273, 364
Title
Maximal expiratory pressure (MEP)
Description
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Time Frame
Baseline, Days 91, 182, 273, 364
Title
Peak cough flow (PCF)
Description
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Time Frame
Baseline, Days 91, 182, 273, 364
Title
Left ventricular end-diastolic volume (LVEDV)
Description
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Time Frame
Baseline, Days 91, 182, 273, 364
Title
Ejection Fraction (EF)
Description
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Time Frame
Baseline, Days 91, 182, 273, 364
Title
Degree of fibrosis as assessed by cardiac MRI
Description
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Time Frame
Baseline, Days 182, 364
Title
Performance of upper limb (PUL) test
Description
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Time Frame
Baseline, Days 91, 182, 273, 364
Title
Cardiac troponin I
Description
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Time Frame
Baseline, Days 28, 56, 91, 182, 273, 364
Title
Muscle creatine kinase
Description
Change from baseline (pre-treatment) to end of treatment (52 weeks)
Time Frame
Baseline, Days 28, 56, 91, 182, 273, 364

10. Eligibility

Sex
Male
Minimum Age & Unit of Time
12 Years
Maximum Age & Unit of Time
25 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Male 12 - 25 years of age Have phenotypic evidence of DMD Have documentation of the presence of a deletion, duplication or point mutation in the dystrophin gene Willingness to receive daily subcutaneous (SC) injections of up to 3 mL Have LVEDV that is ≥100% of normal corrected for body mass when measured by cardiac MRI Have impaired respiratory function (percent predicted PEF ≤80%) Have ability to perform PEF within 15% of first assessment Have mild to moderate fibrosis of the heart as assessed by MRI Have left ventricular ejection fraction fractions of <50% Have been non-ambulatory for at least six months Be on corticosteroids, with a stable treatment regimen for at least six months Have been on a stable treatment regimen for cardiac dysfunction for at least 3 months prior to baseline (ACE inhibitors, beta blockers and/or ARBs) Have clinically acceptable screening values, including serum creatinine levels blood urine nitrogen, cystatin C Have willingness and ability to comply with scheduled visits, drug administration, drug administrative plan, study procedures, laboratory tests, and treatment restrictions Be likely to survive for the duration of the treatment in the investigator's opinion Have ability to provide written informed consent (parent/guardian consent if applicable)/assent (if <18 years of age). Exclusion Criteria: Exposure to another investigational drug within 90 days prior to start of study treatment Have DMD-related hypoventilation for which daytime assisted ventilation is needed Unable to perform pulmonary function testing Have respiratory failure Unable or unwilling to undergo scan with gadolinium as contrast agent Unable or unwilling to undergo echocardiography Have severe fibrosis of the heart as assessed by MRI Used carnitine, creatine, glutamine, oxatomide, coenzyme Q10 or vitamin E or any herbal medicines with 30 days prior to baseline Have a history of major surgical procedure within 30 days prior to start of study treatment Have ongoing immunosuppressive therapy (other than corticosteroids) Are participating in a therapeutic clinical trial Are on any concomitant medication with a depressive or stimulating effect on respiration or the respiratory tract Have a diagnosis of chronic lung disease Chronic use of beta-2 agonists or any other bronchodilating medication (chronic use is daily intake for more than 14 days within the last 6 months) Have moderate or severe hepatic impairment or moderate to severe renal impairment Have expectation of major surgical procedure during the conduct of the study Have prior or ongoing medical conditions that makes it unlikely that the course of treatment or follow-up would be completed, or could impair the assessment of the treatment results Have ever previously received P-188 NF as a therapeutic agent
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Thomas Ryan, MD
Organizational Affiliation
Children's Hospital Medical Center, Cincinnati
Official's Role
Principal Investigator
Facility Information:
Facility Name
Cincinnati Children's Hospital Medical Center
City
Cincinnati
State/Province
Ohio
ZIP/Postal Code
45229
Country
United States

12. IPD Sharing Statement

Plan to Share IPD
No
Citations:
PubMed Identifier
18495816
Citation
Ng R, Metzger JM, Claflin DR, Faulkner JA. Poloxamer 188 reduces the contraction-induced force decline in lumbrical muscles from mdx mice. Am J Physiol Cell Physiol. 2008 Jul;295(1):C146-50. doi: 10.1152/ajpcell.00017.2008. Epub 2008 May 21.
Results Reference
background
Citation
Ilsar, I., Wang, M., Jiang, A., Dye, K., Markham, B., Sabbah, H.N. (2010) Acute intravenous bolus injection of Poloxamer-188 improves left ventricular function in dogs with heart failure J. Am. Col. Cardiol. 55 (Suppl. 1): A16.E146.
Results Reference
background
PubMed Identifier
20234088
Citation
Townsend D, Turner I, Yasuda S, Martindale J, Davis J, Shillingford M, Kornegay JN, Metzger JM. Chronic administration of membrane sealant prevents severe cardiac injury and ventricular dilatation in dystrophic dogs. J Clin Invest. 2010 Apr;120(4):1140-50. doi: 10.1172/JCI41329. Epub 2010 Mar 15.
Results Reference
background
PubMed Identifier
26623440
Citation
Houang EM, Haman KJ, Filareto A, Perlingeiro RC, Bates FS, Lowe DA, Metzger JM. Membrane-stabilizing copolymers confer marked protection to dystrophic skeletal muscle in vivo. Mol Ther Methods Clin Dev. 2015 Nov 11;2:15042. doi: 10.1038/mtm.2015.42. eCollection 2015.
Results Reference
background
PubMed Identifier
25791035
Citation
Lin B, Li Y, Han L, Kaplan AD, Ao Y, Kalra S, Bett GC, Rasmusson RL, Denning C, Yang L. Modeling and study of the mechanism of dilated cardiomyopathy using induced pluripotent stem cells derived from individuals with Duchenne muscular dystrophy. Dis Model Mech. 2015 May;8(5):457-66. doi: 10.1242/dmm.019505. Epub 2015 Mar 19.
Results Reference
background
Citation
Plant DR, Ryall JG, Lynch GS. Contraction-mediated damage in mdx dystrophic mouse tibialis anterior muscles is not affected by the membrane sealant poloxamer Proc. Australia Physiological Society. 2005; 36: 133P
Results Reference
background
Citation
Ryall JG, van der Poel C, Schertzer JD, Plant DR, Lynch GS, The membrane sealant poloxamer reduces membrane permeability in tibialis anterior muscles from dystrophic mdx mice. The FASEB Journal. 2007;21: 769.28.
Results Reference
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Safety and Efficacy of P-188 NF in DMD Patients

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