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Study of ACE-083 in Patients With Charcot-Marie-Tooth Disease

Primary Purpose

Charcot-Marie-Tooth Disease

Status
Terminated
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
ACE-083
Placebo
Sponsored by
Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Charcot-Marie-Tooth Disease focused on measuring CMT1 / CMTX

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Key Inclusion Criteria

  1. Age ≥ 18 years
  2. Diagnosis of CMT1 or CMTX confirmed by:

    1. Clinical presentation and electrodiagnostics
    2. Genetically-confirmed CMT1 or CMTX for the patient or first-degree relative
  3. Part 1:

    1. Six-minute walk distance (6MWD) of at least 150 meters (without a brace or walker)
    2. Independent ambulation for at least 10 meters, without a brace
    3. Left and right ankle plantar flexion MRC grade 4+ to 5, inclusive

    Part 2:

    1. 6MWD ≥ 150 and ≤ 500 meters (without a brace or walker); a maximum of 20% of enrolled patients with 6MWD ≥ 450 meters will be included
    2. Left and right ankle plantar flexion MRC grade 4- to 5, inclusive
  4. Left and right ankle dorsiflexion Medical Research Council (MRC) manual muscle testing (MMT) grade 3 to 4+ inclusive. No more than 12 of the 40 subjects may have a grade of 3 or 3+ on one or both sides.
  5. Females of childbearing potential must have negative urine pregnancy test prior to enrollment and use highly effective birth control methods during study participation and for 8 weeks following the last dose of ACE-083. Males must agree to use a condom during any sexual contact with females of childbearing potential while participating in the study and for 8 weeks following the last dose of ACE-083, even if he has undergone a successful vasectomy.
  6. Ability to adhere to the study visit schedule/procedures, and to understand and comply with protocol requirements
  7. Signed written informed consent

Key Exclusion Criteria

  1. History of active malignancy, with the exception of fully excised or treated basal cell carcinoma, cervical carcinoma in-situ, or ≤ 2 squamous cell carcinomas of the skin
  2. Symptomatic cardiopulmonary disease, significant functional impairment, significant orthopedic or neuropathic pain, or other co morbidities that in the opinion of the investigator would limit a patient's ability to complete strength and/or functional assessments on study
  3. Type 1 or type 2 diabetes mellitus
  4. Thyroid disorder unless condition is stable with no change in treatment for at least 4 weeks before the first dose and no expected change for duration of study
  5. Renal impairment (serum creatinine ≥ 2 times the upper limit of normal (ULN])
  6. Aspartate transaminase (AST) and/or alanine transaminase (ALT) ≥ 3 times ULN
  7. Increased risk of bleeding (i.e., due to hemophilia, platelet disorders, or use of any anticoagulation/platelet modifying therapies up to 2 weeks prior to Study Day 1 and for duration of study; low dose aspirin [≤ 100 mg daily] is permitted)
  8. Severe deformity or ankle fixation that would sufficiently limit passive range of motion to affect assessment of dorsiflexion strength
  9. Major surgery within 4 weeks prior to Study Day 1
  10. Chronic pharmacologic doses of systemic corticosteroids (≥ 2 weeks) within 4 weeks before Study Day 1 and for duration of study; intra-articular/topical/inhaled/intranasal physiologic doses of systemic corticosteroids are permitted
  11. Androgens, growth hormone, insulin or oral hormone replacement therapy within 6 months before Study Day 1 and for duration of study; topical physiologic androgen replacement is permitted
  12. Any change in medications potentially affecting muscle strength or function within 4 weeks of Study Day 1 and for duration of study (e.g., creatinine, CoQ10, systemic beta-adrenergic agonists)
  13. Previous exposure to any investigational agent potentially affecting muscle volume, muscle strength, or muscle or nerve function within 5 half-lives of last dose plus an additional 8-week washout period (or 12 weeks prior to Study Day 1 if half-life is unknown)
  14. Any previous or current exposure to ACE-083
  15. Significant change in physical activity or exercise (e.g., significant increase or decrease in intensity or frequency) within 8 weeks before Study Day 1 or inability to maintain the baseline level of physical activity throughout the study
  16. Any condition that would prevent MRI scanning or compromise the ability to obtain a clear and interpretable scan of the lower leg, as applicable (e.g., knee/hip replacement metallic implants)
  17. Known active substance abuse, including alcohol
  18. History of sensitivity to protein pharmaceuticals
  19. Female that is lactating/breast-feeding

Sites / Locations

  • University of California-Irvine
  • University of Colorado
  • University of Florida
  • University of Iowa Hospitals and Clinics
  • University of Kansas Medical Center - Neurology Department
  • University of Minnesota, Neurology Department
  • Washington University School of Medicine
  • Hackensack University Medical Center
  • Columbia University
  • University of Rochester Medical Center, Neurology
  • Carolinas Healthcare System Neurosciences Institute
  • Oregon Health & Science University
  • University of Pennsylvania
  • University of Utah
  • University of Vermont
  • Virginia Commonwealth University

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm Type

Experimental

Experimental

Experimental

Experimental

Experimental

Arm Label

Part 1 Cohort 1

Part 1 Cohort 2

Part 1 Cohort 3

Part 2 (double-blind placebo controlled)

Part 2 (open label)

Arm Description

ACE-083 150 mg intramuscular (IM) (tibialis anterior muscle), once every 3 weeks for up to 5 doses.

ACE-083 200 mg IM (tibialis anterior muscle), once every 3 weeks for up to 5 doses.

ACE-083 up to 250 mg IM (tibialis anterior muscle), once every 3 weeks for up to 5 doses.

ACE-083 up to 250 mg IM (tibialis anterior muscle) or placebo, once every 3 weeks for up to 9 doses

ACE-083 up to 250 mg IM (tibialis anterior muscle), once every 3 weeks for up to 8 doses

Outcomes

Primary Outcome Measures

Part 1: Frequency of Adverse Events
Number of subjects with at least one adverse event related to treatment intervention from Part 1 of this study. Since this outcome measure was only pre-specified for Part 1, only data from the Part 1 participants is reported.
Part 2: Percent Change in Muscle Volume to the End of the Double-blind Placebo-controlled Portion of the Study.
The percent change from baseline in volume of injected muscle, by MRI compared to the Day 190 Assessment is reported. The pre-specified timepoint for this outcome was only for data collected from participants to the end of the double-blind placebo controlled portion of the study, therefore data for the open-label arm of the study is not reported.

Secondary Outcome Measures

Part 2: Absolute Change in Amount of Intramuscular Fat Tissue to the End of the Double-blind Placebo-controlled Portion of the Study
The absolute change from baseline in intramuscular fat fraction of the injected muscle, by MRI compared to Day 190 Assessment is reported. The pre-specified timepoint for this outcome was only for data collected from participants to the end of the double-blind placebo controlled portion of the study, therefore data for the open-label arm of the study is not reported.
Part 2: Percent Change in Muscle Strength to the End of the Double-blind Placebo-controlled Portion of the Study
Percent change from baseline in strength of the injected muscle, by Quantitative Muscle Testing (QMT) compared to Day 190 Assessment is reported. The pre-specified timepoint for this outcome was only for data collected from participants to the end of the double-blind placebo controlled portion of the study, therefore data for the open-label arm of the study is not reported.
Part 2: Percent Change in Muscle Function - Walk/Run Time to the End of the Double-blind Placebo-controlled Portion of the Study
The percent change from baseline in functional assessments, as measured by 10-meter walk/run time when compared to Day 190 Assessment is reported. The pre-specified timepoint for this outcome was only for data collected from participants to the end of the double-blind placebo controlled portion of the study, therefore data for the open-label arm of the study is not reported.
Part 2: Percent Change in Muscle Function - Walk Distance Assessed at the End of the Double-blind Placebo-controlled Portion of the Study
Percent change from baseline in functional assessments, as measured by 6-minute walk distance when compared to Day 190 Assessment, is reported. The pre-specified timepoint for this outcome was only for data collected from participants to the end of the double-blind placebo controlled portion of the study, therefore data for the open-label arm of the study is not reported.
Part 2: Change in Balance and Fall Risk at the End of the Double-blind Placebo-controlled Portion of the Study.
Change from baseline in static and dynamic balance, as measured by the Berg Balance Scale, a 14-item scoring system to assess balance and fall risk in adults. The Berg balance scale is used to objectively determine a patient's ability (or inability) to safely balance during a series of predetermined tasks. It is a 14 item list with each item consisting of a five-point ordinal scale ranging from 0 to 4, with 0 indicating the lowest level of function and 4 the highest level of function. Total scores are used for reporting, with a range of 0-56, with higher scores mean a better demonstration of function. A score of 56 indicates functional balance. A score of < 45 indicates individuals may be at greater risk of falling. The pre-specified timepoints for reporting are baseline Berg scale score and Day 190 score, therefore data for the open-label arm of the study is not reported.
Part 2: Percent Change in Balance and Fall Risk From Baseline to the End of the Double-blind Placebo-controlled Portion of the Study
Percent change was calculated for the difference from baseline and Day 190 Assessment scores on the Berg Balance Scale. The Berg Balance Scale, is a 14-item scoring system to assess balance and fall risk in adults. The Berg balance scale is used to objectively determine a patient's ability (or inability) to safely balance during a series of predetermined tasks. It is a 14 item list with each item consisting of a five-point ordinal scale ranging from 0 to 4, with 0 indicating the lowest level of function and 4 the highest level of function. Total scores are used for reporting, with a range of 0-56, with higher scores mean a better demonstration of function. A score of 56 indicates functional balance. A score of < 45 indicates individuals may be at greater risk of falling. The pre-specified timepoints for reporting are baseline Berg scale score and Day 190 score, therefore data for the open-label arm of the study is not reported.
Part 2: Change in Clinical Examination Score From Baseline to End of the Double-blind Placebo-controlled Portion of the Study
Change from baseline in the Charcot-Marie-Tooth (CMT) Examination Score, version 2 (CMTES2), a composite scoring system to assess sensory and motor impairment in subjects with CMT. The total score is a subset of the following items from the CMT neuropathy score instrument: Sensory symptoms, Motor symptoms (legs), Motor symptoms (arms), Pinprick Sensibility, Vibration, Strength (legs), and Strength (arms). Each individual item is assessed using a rating from 0 to 4 inclusive. The range of CMTES2 scores is from 0 to 28 inclusive. A higher score means a greater degree of symptom severity. The Baseline score and score on the Day 190 Assessment are reported. The pre-specified timepoints for reporting are baseline Berg scale score and Day 190 score, therefore data for the open-label arm of the study is not reported.
Part 2: Percent Change in Clinical Examination Score in Baseline to End of the Double-blind Placebo-controlled Portion of the Study
Percent change was calculated for the difference in the Charcot-Marie-Tooth (CMT) Examination Score (CMTES2) from baseline and Day 190 Assessment scores. The pre-specified timepoints for reporting are baseline Berg scale score and Day 190 score, therefore data for the open-label arm of the study is not reported.
Part 2: Change in Patient-reported Quality of Life From Baseline to the End of the Double-blind Placebo-controlled Portion of the Study
The absolute change from baseline in Charcot-Marie-Tooth Health Index (CMT-HI), a disease-specific, patient-reported health index score from baseline and Day 190 Assessment scores. The pre-specified timepoints for reporting are baseline Berg scale score and Day 190 score, therefore data for the open-label arm of the study is not reported.

Full Information

First Posted
April 12, 2017
Last Updated
September 13, 2022
Sponsor
Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA
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1. Study Identification

Unique Protocol Identification Number
NCT03124459
Brief Title
Study of ACE-083 in Patients With Charcot-Marie-Tooth Disease
Official Title
A Phase 2 Randomized, Double-Blind, Placebo-Controlled Study of ACE-083 in Patients With Charcot-Marie-Tooth Disease Types 1 and X
Study Type
Interventional

2. Study Status

Record Verification Date
September 2022
Overall Recruitment Status
Terminated
Why Stopped
(Investigation of ACE-083 for use in patients with CMT is being discontinued as it did not achieve functional secondary endpoints in the A083-03 trial.
Study Start Date
July 31, 2017 (Actual)
Primary Completion Date
March 11, 2020 (Actual)
Study Completion Date
March 11, 2020 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA

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 a multicenter, phase 2 study to evaluate the safety, tolerability, pharmacodynamics (PD), efficacy, and pharmacokinetics (PK) of ACE-083 in patients with Charcot-Marie-Tooth Disease Type 1 and Type X (CMT1 and CMTX), to be conducted in two parts. Part 1 is non-randomized, open-label, dose-escalation and Part 2 is randomized, double-blind, and placebo-controlled.
Detailed Description
Part 1 (non-randomized, open-label, dose-escalation) Part 1 will consist of up to 3 cohorts of 6 patients each and will evaluate multiple ascending dose levels of ACE-083 administered bilaterally once every 3 weeks for up to 5 doses in the tibialis anterior (TA) muscle. Patients in each cohort will be enrolled in a 4-week screening period before beginning treatment. Part 2 (randomized, double-blind, placebo-controlled) Prior to the initiation of Part 2, a review of safety and efficacy data from Part 1 will be conducted by the Safety Review Team (SRT) to determine the recommended dose level (maximum 250 mg/muscle). A total of up to 40 new patients may be enrolled and randomized (1:1 randomization) to receive either ACE 083 (n=20) or placebo (n=20) bilaterally by injection into both TA muscles once every 3 weeks for up to 17 doses. Study duration for Parts 1 and 2 for each patient will be approximately 24 weeks, including a 4-week screening period, a 12-week treatment period, and an 8-week follow-up period after the last dose. Study duration for Part 2 will be 15 months, including 4-week screening, 6 months double blind placebo-controlled, 6 months open-label and 8 week follow-up.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Charcot-Marie-Tooth Disease
Keywords
CMT1 / CMTX

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
63 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Part 1 Cohort 1
Arm Type
Experimental
Arm Description
ACE-083 150 mg intramuscular (IM) (tibialis anterior muscle), once every 3 weeks for up to 5 doses.
Arm Title
Part 1 Cohort 2
Arm Type
Experimental
Arm Description
ACE-083 200 mg IM (tibialis anterior muscle), once every 3 weeks for up to 5 doses.
Arm Title
Part 1 Cohort 3
Arm Type
Experimental
Arm Description
ACE-083 up to 250 mg IM (tibialis anterior muscle), once every 3 weeks for up to 5 doses.
Arm Title
Part 2 (double-blind placebo controlled)
Arm Type
Experimental
Arm Description
ACE-083 up to 250 mg IM (tibialis anterior muscle) or placebo, once every 3 weeks for up to 9 doses
Arm Title
Part 2 (open label)
Arm Type
Experimental
Arm Description
ACE-083 up to 250 mg IM (tibialis anterior muscle), once every 3 weeks for up to 8 doses
Intervention Type
Drug
Intervention Name(s)
ACE-083
Intervention Description
Part 1 - Recombinant fusion protein. Part 2 - Recombinant fusion protein or buffer solution.
Intervention Type
Drug
Intervention Name(s)
Placebo
Intervention Description
Recombinant fusion protein or buffer solution
Primary Outcome Measure Information:
Title
Part 1: Frequency of Adverse Events
Description
Number of subjects with at least one adverse event related to treatment intervention from Part 1 of this study. Since this outcome measure was only pre-specified for Part 1, only data from the Part 1 participants is reported.
Time Frame
From initiation of treatment (Study Day 1) to end of follow-up period for Part 1 (Study Day 141).
Title
Part 2: Percent Change in Muscle Volume to the End of the Double-blind Placebo-controlled Portion of the Study.
Description
The percent change from baseline in volume of injected muscle, by MRI compared to the Day 190 Assessment is reported. The pre-specified timepoint for this outcome was only for data collected from participants to the end of the double-blind placebo controlled portion of the study, therefore data for the open-label arm of the study is not reported.
Time Frame
From initiation of treatment (Study Day 1) to end of follow-up period of the double-blind placebo-controlled portion of the study (Study Day 190).
Secondary Outcome Measure Information:
Title
Part 2: Absolute Change in Amount of Intramuscular Fat Tissue to the End of the Double-blind Placebo-controlled Portion of the Study
Description
The absolute change from baseline in intramuscular fat fraction of the injected muscle, by MRI compared to Day 190 Assessment is reported. The pre-specified timepoint for this outcome was only for data collected from participants to the end of the double-blind placebo controlled portion of the study, therefore data for the open-label arm of the study is not reported.
Time Frame
From initiation of treatment (Study Day 1) to end of follow-up period of the double-blind placebo-controlled portion of the study (Study Day 190).
Title
Part 2: Percent Change in Muscle Strength to the End of the Double-blind Placebo-controlled Portion of the Study
Description
Percent change from baseline in strength of the injected muscle, by Quantitative Muscle Testing (QMT) compared to Day 190 Assessment is reported. The pre-specified timepoint for this outcome was only for data collected from participants to the end of the double-blind placebo controlled portion of the study, therefore data for the open-label arm of the study is not reported.
Time Frame
From initiation of treatment (Study Day 1) to end of follow-up period of the double-blind placebo-controlled portion of the study (Study Day 190).
Title
Part 2: Percent Change in Muscle Function - Walk/Run Time to the End of the Double-blind Placebo-controlled Portion of the Study
Description
The percent change from baseline in functional assessments, as measured by 10-meter walk/run time when compared to Day 190 Assessment is reported. The pre-specified timepoint for this outcome was only for data collected from participants to the end of the double-blind placebo controlled portion of the study, therefore data for the open-label arm of the study is not reported.
Time Frame
From initiation of treatment (Study Day 1) to end of follow-up period of the double-blind placebo-controlled portion of the study (Study Day 190).
Title
Part 2: Percent Change in Muscle Function - Walk Distance Assessed at the End of the Double-blind Placebo-controlled Portion of the Study
Description
Percent change from baseline in functional assessments, as measured by 6-minute walk distance when compared to Day 190 Assessment, is reported. The pre-specified timepoint for this outcome was only for data collected from participants to the end of the double-blind placebo controlled portion of the study, therefore data for the open-label arm of the study is not reported.
Time Frame
From initiation of treatment (Study Day 1) to end of follow-up period for the double-blind placebo-controlled portion of the study (Study Day 190).
Title
Part 2: Change in Balance and Fall Risk at the End of the Double-blind Placebo-controlled Portion of the Study.
Description
Change from baseline in static and dynamic balance, as measured by the Berg Balance Scale, a 14-item scoring system to assess balance and fall risk in adults. The Berg balance scale is used to objectively determine a patient's ability (or inability) to safely balance during a series of predetermined tasks. It is a 14 item list with each item consisting of a five-point ordinal scale ranging from 0 to 4, with 0 indicating the lowest level of function and 4 the highest level of function. Total scores are used for reporting, with a range of 0-56, with higher scores mean a better demonstration of function. A score of 56 indicates functional balance. A score of < 45 indicates individuals may be at greater risk of falling. The pre-specified timepoints for reporting are baseline Berg scale score and Day 190 score, therefore data for the open-label arm of the study is not reported.
Time Frame
From initiation of treatment (Study Day 1) to end of follow-up period of the double-blind placebo-controlled portion of the study (Study Day 190).
Title
Part 2: Percent Change in Balance and Fall Risk From Baseline to the End of the Double-blind Placebo-controlled Portion of the Study
Description
Percent change was calculated for the difference from baseline and Day 190 Assessment scores on the Berg Balance Scale. The Berg Balance Scale, is a 14-item scoring system to assess balance and fall risk in adults. The Berg balance scale is used to objectively determine a patient's ability (or inability) to safely balance during a series of predetermined tasks. It is a 14 item list with each item consisting of a five-point ordinal scale ranging from 0 to 4, with 0 indicating the lowest level of function and 4 the highest level of function. Total scores are used for reporting, with a range of 0-56, with higher scores mean a better demonstration of function. A score of 56 indicates functional balance. A score of < 45 indicates individuals may be at greater risk of falling. The pre-specified timepoints for reporting are baseline Berg scale score and Day 190 score, therefore data for the open-label arm of the study is not reported.
Time Frame
From initiation of treatment (Study Day 1) to end of follow-up period of the double-blind placebo-controlled portion of the study (Study Day 190).
Title
Part 2: Change in Clinical Examination Score From Baseline to End of the Double-blind Placebo-controlled Portion of the Study
Description
Change from baseline in the Charcot-Marie-Tooth (CMT) Examination Score, version 2 (CMTES2), a composite scoring system to assess sensory and motor impairment in subjects with CMT. The total score is a subset of the following items from the CMT neuropathy score instrument: Sensory symptoms, Motor symptoms (legs), Motor symptoms (arms), Pinprick Sensibility, Vibration, Strength (legs), and Strength (arms). Each individual item is assessed using a rating from 0 to 4 inclusive. The range of CMTES2 scores is from 0 to 28 inclusive. A higher score means a greater degree of symptom severity. The Baseline score and score on the Day 190 Assessment are reported. The pre-specified timepoints for reporting are baseline Berg scale score and Day 190 score, therefore data for the open-label arm of the study is not reported.
Time Frame
From initiation of treatment (Study Day 1) to end of follow-up period of the double-blind placebo-controlled portion of the study (Study Day 190).
Title
Part 2: Percent Change in Clinical Examination Score in Baseline to End of the Double-blind Placebo-controlled Portion of the Study
Description
Percent change was calculated for the difference in the Charcot-Marie-Tooth (CMT) Examination Score (CMTES2) from baseline and Day 190 Assessment scores. The pre-specified timepoints for reporting are baseline Berg scale score and Day 190 score, therefore data for the open-label arm of the study is not reported.
Time Frame
From initiation of treatment (Study Day 1) to end of follow-up period of the double-blind placebo-controlled portion of the study (Study Day 190).
Title
Part 2: Change in Patient-reported Quality of Life From Baseline to the End of the Double-blind Placebo-controlled Portion of the Study
Description
The absolute change from baseline in Charcot-Marie-Tooth Health Index (CMT-HI), a disease-specific, patient-reported health index score from baseline and Day 190 Assessment scores. The pre-specified timepoints for reporting are baseline Berg scale score and Day 190 score, therefore data for the open-label arm of the study is not reported.
Time Frame
From initiation of treatment (Study Day 1) to end of follow-up period of the double-blind placebo-controlled portion of the study (Study Day 190).

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Key Inclusion Criteria Age ≥ 18 years Diagnosis of CMT1 or CMTX confirmed by: Clinical presentation and electrodiagnostics Genetically-confirmed CMT1 or CMTX for the patient or first-degree relative Part 1: Six-minute walk distance (6MWD) of at least 150 meters (without a brace or walker) Independent ambulation for at least 10 meters, without a brace Left and right ankle plantar flexion MRC grade 4+ to 5, inclusive Part 2: 6MWD ≥ 150 and ≤ 500 meters (without a brace or walker); a maximum of 20% of enrolled patients with 6MWD ≥ 450 meters will be included Left and right ankle plantar flexion MRC grade 4- to 5, inclusive Left and right ankle dorsiflexion Medical Research Council (MRC) manual muscle testing (MMT) grade 3 to 4+ inclusive. No more than 12 of the 40 subjects may have a grade of 3 or 3+ on one or both sides. Females of childbearing potential must have negative urine pregnancy test prior to enrollment and use highly effective birth control methods during study participation and for 8 weeks following the last dose of ACE-083. Males must agree to use a condom during any sexual contact with females of childbearing potential while participating in the study and for 8 weeks following the last dose of ACE-083, even if he has undergone a successful vasectomy. Ability to adhere to the study visit schedule/procedures, and to understand and comply with protocol requirements Signed written informed consent Key Exclusion Criteria History of active malignancy, with the exception of fully excised or treated basal cell carcinoma, cervical carcinoma in-situ, or ≤ 2 squamous cell carcinomas of the skin Symptomatic cardiopulmonary disease, significant functional impairment, significant orthopedic or neuropathic pain, or other co morbidities that in the opinion of the investigator would limit a patient's ability to complete strength and/or functional assessments on study Type 1 or type 2 diabetes mellitus Thyroid disorder unless condition is stable with no change in treatment for at least 4 weeks before the first dose and no expected change for duration of study Renal impairment (serum creatinine ≥ 2 times the upper limit of normal (ULN]) Aspartate transaminase (AST) and/or alanine transaminase (ALT) ≥ 3 times ULN Increased risk of bleeding (i.e., due to hemophilia, platelet disorders, or use of any anticoagulation/platelet modifying therapies up to 2 weeks prior to Study Day 1 and for duration of study; low dose aspirin [≤ 100 mg daily] is permitted) Severe deformity or ankle fixation that would sufficiently limit passive range of motion to affect assessment of dorsiflexion strength Major surgery within 4 weeks prior to Study Day 1 Chronic pharmacologic doses of systemic corticosteroids (≥ 2 weeks) within 4 weeks before Study Day 1 and for duration of study; intra-articular/topical/inhaled/intranasal physiologic doses of systemic corticosteroids are permitted Androgens, growth hormone, insulin or oral hormone replacement therapy within 6 months before Study Day 1 and for duration of study; topical physiologic androgen replacement is permitted Any change in medications potentially affecting muscle strength or function within 4 weeks of Study Day 1 and for duration of study (e.g., creatinine, CoQ10, systemic beta-adrenergic agonists) Previous exposure to any investigational agent potentially affecting muscle volume, muscle strength, or muscle or nerve function within 5 half-lives of last dose plus an additional 8-week washout period (or 12 weeks prior to Study Day 1 if half-life is unknown) Any previous or current exposure to ACE-083 Significant change in physical activity or exercise (e.g., significant increase or decrease in intensity or frequency) within 8 weeks before Study Day 1 or inability to maintain the baseline level of physical activity throughout the study Any condition that would prevent MRI scanning or compromise the ability to obtain a clear and interpretable scan of the lower leg, as applicable (e.g., knee/hip replacement metallic implants) Known active substance abuse, including alcohol History of sensitivity to protein pharmaceuticals Female that is lactating/breast-feeding
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Jay Backstrom, MD
Organizational Affiliation
Acceleron Pharma, Inc., a wholly-owned subsidiary of Merck & Co., Inc., Rahway, NJ USA
Official's Role
Study Chair
Facility Information:
Facility Name
University of California-Irvine
City
Orange
State/Province
California
ZIP/Postal Code
92868
Country
United States
Facility Name
University of Colorado
City
Aurora
State/Province
Colorado
ZIP/Postal Code
80045
Country
United States
Facility Name
University of Florida
City
Gainesville
State/Province
Florida
ZIP/Postal Code
32610
Country
United States
Facility Name
University of Iowa Hospitals and Clinics
City
Iowa City
State/Province
Iowa
ZIP/Postal Code
52242
Country
United States
Facility Name
University of Kansas Medical Center - Neurology Department
City
Kansas City
State/Province
Kansas
ZIP/Postal Code
66160
Country
United States
Facility Name
University of Minnesota, Neurology Department
City
Minneapolis
State/Province
Minnesota
ZIP/Postal Code
55455
Country
United States
Facility Name
Washington University School of Medicine
City
Saint Louis
State/Province
Missouri
ZIP/Postal Code
63110
Country
United States
Facility Name
Hackensack University Medical Center
City
Hackensack
State/Province
New Jersey
ZIP/Postal Code
07601
Country
United States
Facility Name
Columbia University
City
New York
State/Province
New York
ZIP/Postal Code
10032
Country
United States
Facility Name
University of Rochester Medical Center, Neurology
City
Rochester
State/Province
New York
ZIP/Postal Code
14642
Country
United States
Facility Name
Carolinas Healthcare System Neurosciences Institute
City
Charlotte
State/Province
North Carolina
ZIP/Postal Code
28203
Country
United States
Facility Name
Oregon Health & Science University
City
Portland
State/Province
Oregon
ZIP/Postal Code
97239
Country
United States
Facility Name
University of Pennsylvania
City
Philadelphia
State/Province
Pennsylvania
ZIP/Postal Code
19104
Country
United States
Facility Name
University of Utah
City
Salt Lake City
State/Province
Utah
ZIP/Postal Code
84112
Country
United States
Facility Name
University of Vermont
City
Burlington
State/Province
Vermont
ZIP/Postal Code
05401
Country
United States
Facility Name
Virginia Commonwealth University
City
Richmond
State/Province
Virginia
ZIP/Postal Code
23298
Country
United States

12. IPD Sharing Statement

Plan to Share IPD
Undecided

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Study of ACE-083 in Patients With Charcot-Marie-Tooth Disease

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