ACT DMD: Phase 3 Study of Ataluren in Participants With Nonsense Mutation Duchenne Muscular Dystrophy (nmDMD)

Sponsor
PTC Therapeutics (Industry)
Overall Status
Completed
CT.gov ID
NCT01826487
Collaborator
(none)
230
55
2
28.8
4.2
0.1

Study Details

Study Description

Brief Summary

Dystrophinopathy is a disease continuum that includes Duchenne muscular dystrophy, which develops in boys. It is caused by a mutation in the gene for dystrophin, a protein that is important for maintaining normal muscle structure and function. Loss of dystrophin causes muscle fragility that leads to weakness and loss of walking ability. A specific type of mutation, called a nonsense (premature stop codon) mutation is the cause of dystrophinopathy in approximately 10-15 percent (%) of boys with the disease. Ataluren is an orally delivered, investigational drug that has the potential to overcome the effects of the nonsense mutation. The main goal of this Phase 3 study is to evaluate the effect of ataluren on walking ability. The effect of ataluren on physical function, quality of life, and activities of daily living will be evaluated. This study will also provide additional information on the long-term safety of ataluren.

Detailed Description

This is a Phase 3, multicenter, randomized, double-blind, placebo-controlled study to determine the efficacy and safety of ataluren in participants with nmDMD.

Study Design

Study Type:
Interventional
Actual Enrollment :
230 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose:
Treatment
Official Title:
A Phase 3 Efficacy and Safety Study of Ataluren in Patients With Nonsense Mutation Dystrophinopathy
Actual Study Start Date :
Mar 26, 2013
Actual Primary Completion Date :
Aug 20, 2015
Actual Study Completion Date :
Aug 20, 2015

Arms and Interventions

Arm Intervention/Treatment
Placebo Comparator: Placebo

Participants will receive placebo matching to ataluren orally 3 times a day (TID) at morning, midday, and evening for 48 weeks.

Drug: Placebo
Placebo will be administered as per the schedule specified in the arm.

Experimental: Ataluren

Participants will receive ataluren suspension orally TID, 10 milligrams/kilogram (mg/kg) at morning, 10 mg/kg at midday, and 20 mg/kg at evening (total daily dose 40 mg/kg) for 48 weeks.

Drug: Ataluren
Ataluren will be administered as per the dose and schedule specified in the arm.
Other Names:
  • PTC124
  • Outcome Measures

    Primary Outcome Measures

    1. Change From Baseline in 6MWD at Week 48 [Baseline, Week 48]

      The 6MWD test is a non-encouraged test performed in a 30 meters long flat corridor, where the participant is instructed to walk as far as possible, back and forth around two cones, with the permission to slow down, rest, or stop if needed. Ambulation was assessed via the 6MWD test following standardized procedures by measuring the 6MWD in meters. Participants were not permitted to use assistive devices (walker, long leg braces, or short leg braces) during the 6MWD test. Participants with confirmed loss of ambulation at a particular visit were assigned a 6MWD result of 0. Baseline and Week 48 6MWD values are each the average of two valid 6MWD values, or a single available value if one was missing.

    Secondary Outcome Measures

    1. Time to 10 Percent (%) Persistent Worsening in 6MWD [Baseline to Week 48]

      The 6MWD test is a non-encouraged test performed in a 30 meters long flat corridor, where the participant is instructed to walk as far as possible, back and forth around two cones, with the permission to slow down, rest, or stop if needed. Ambulation was assessed via the 6MWD test following standardized procedures by measuring the 6MWD in meters. Participants were not permitted to use assistive devices (walker, long leg braces, or short leg braces) during the 6MWD test. Time to 10% persistent worsening in 6MWD was defined as the last time that 6MWD was not 10% worse compared with baseline. Time to 10% persistent worsening in 6MWD <300 meters, >=300 to 400 meters, and >=400 meters was evaluated. For participants who did not have 10% 6MWD worsening or who were removed from study, time to 10% 6MWD worsening was censored at the time of the last 6MWD test. Participants who became non-ambulatory were considered to have 10% worsening.

    2. Change From Baseline in Time to Walk/Run 10 Meters at Week 48 [Baseline, Week 48]

      During the test for walking/running 10 meters, the method of walk/run used by the participant was categorized as follows: 1. Unable to walk independently; 2. Unable to walk independently but can walk with support from a person or with assistive device (full leg calipers [knee-ankle-foot orthoses ] or walker); 3. Highly adapted gait, wide-based lordotic gait, cannot increase walking speed; 4. Moderately adapted gait, can pick up speed but cannot run; 5. Able to pick up speed but runs with a double stance phase (that is, cannot achieve both feet off the ground); 6. Runs and gets both feet off the ground (with no double stance phase). If the time taken to perform a test exceeded 30 seconds or if a participant could not perform the test due to disease progression, a value of 30 seconds was used. A cumulative change from baseline data has been reported.

    3. Change From Baseline in Time to Climb 4 Stairs at Week 48 [Baseline, Week 48]

      During the test for stair-climbing, the method of climbing used by the participant was categorized as follows: 1. Unable to up climb 4 standard stairs; 2. Climbs 4 standard stairs "marking time" (climbs one foot at a time, with both feet on a step before moving to next step), using both arms on one or both handrails; 3. Climbs 4 standard stairs "marking time" (climbs one foot at a time, with both feet on a step before moving to next step), using one arm on one handrail; 4. Climbs 4 standard stairs "marking time" (climbs one foot at a time, with both feet on a step before moving to next step), not needing handrail; 5. Climbs 4 standard stairs alternating feet, needs handrail for support; 6. Climbs 4 standard stairs alternating feet, not needing handrail support. A cumulative change from baseline data has been reported.

    4. Change From Baseline in Time to Descend 4 Stairs at Week 48 [Baseline, Week 48]

      During the test for stair-descending, the method of descending used by the participant was categorized as follows: 1. Unable to descend 4 standard stairs; 2. Descends 4 standard stairs "marking time" (climbs one foot at a time, with both feet on a step before moving to next step), using both arms on one or both handrails; 3. Descends 4 standard stairs "marking time" (climbs one foot at a time, with both feet on a step before moving to next step), using one arm on one handrail; 4. Descends 4 standard stairs "marking time" (climbs one foot at a time, with both feet on a step before moving to next step), not needing handrail; 5. Descends 4 standard stairs alternating feet, needs handrail for support; 6. Descends 4 standard stairs alternating feet, not needing handrail support. A cumulative change from baseline data has been reported.

    5. Percentage of Participants With Treatment-Emergent Adverse Events (AEs) [Baseline up to Week 54]

      An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. Serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. AEs included both SAEs and non-serious AEs. Treatment-emergent adverse event (TEAE) was defined as an adverse event that occurred or worsened in the period extending from first dose of study drug to 6 weeks after the last dose of study drug. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.

    Other Outcome Measures

    1. Change From Baseline in Physical Function Total Score as Measured by NSAA at Week 48 [Baseline, Week 48]

      Physical function was assessed via the NSAA, a functional scale specifically designed for ambulant Duchenne muscular dystrophy (DMD) participants. The assessment comprised tests for 17 abilities of a participant, such as ability to stand, rise from the floor, get from lying to sitting, get from sitting to standing, raise one's head, stand on one's heels, hop, jump, and run. For each activity, a score of 0, 1, or 2 was recorded, with 0 = "unable to achieve independently," 1 = "modified method but achieves goal independent of physical assistance from another," or 2 = "normal- achieves goal without any assistance." The sum of these scores (except for 'raise one's head' activity score) was reported as the ordinal total score, which was transformed to a linear total score ranging from 0 (worst) to 100 (best). Participants with confirmed loss of ambulation at a particular visit were assigned a score of 0.

    2. Number of Participants With Change From Baseline in Activities of Daily Living and Disease Status at Week 48, as Assessed by a Standardized Survey Administered by Site Personnel [Baseline, Week 48]

      Changes in activities of daily living and disease symptoms were captured via a DMD-specific survey administered by Site personnel. At screening or baseline, the participant and/or parent/caregiver were asked to identify any activities of daily living (for example, ambulation, balance, personal hygiene/grooming, dressing and undressing, self-feeding, using the bathroom, handwriting, school performance, behavior or energy level) or symptoms that were affected by the participant's DMD. At post-baseline visit (Week 48), the same participant and/or parent/caregiver was asked to describe any changes from baseline in those activities of daily living/symptoms, within the following categories: physical functioning; general energy level; cognition/school function; emotional/social functioning; and sleep. Changes from baseline were reported on a 5-point Likert scale: 1 (much worse), 2 (slightly worse), 3 (unchanged), 4 (slightly better), or 5 (much better).

    3. Change From Baseline in PODCI Transfers/Basic Mobility and Sports/Physical Functioning Scores at Week 48 [Baseline, Week 48]

      Changes in health-related quality of life (HRQL) were measured via the PODCI questionnaire that has been shown to correlate with disease progression and clinical outcome measures in DMD. PODCI includes a Global Functioning Scale and 5 core scales: Upper Extremity and Physical Function,Transfer/Basic Mobility, Sports/Physical Functioning, Pain/Comfort,and Happiness. The following PODCI domains were prespecified in the protocol for analysis:Transfers/Basic Mobility domain assesses difficulty experienced in performing routine motor activities in daily life. Sports/Physical Functioning domain assesses difficulty encountered in participating in more active recreational activities. Each domain was scored from 0 to 100, with 0 representing a poor outcome/worse health, while 100 representing the highest level of functioning and least pain.

    4. Ataluren Plasma Concentration [Weeks 8, 16, 24, 32, 40, and 48]

      Plasma samples for the determination of ataluren concentrations were analyzed using a validated high performance liquid chromatography with tandem mass spectrometry (HPLC/MS-MS) method with a lower limit of quantitation of 0.5 micrograms/milliliter (mcg/mL).

    5. Study Drug Compliance [Baseline to Week 48]

      Study drug compliance was assessed by quantification of used and unused study drug. Compliance was assessed in terms of the percentage of drug actually taken relative to the amount that should have been taken during the study.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    7 Years to 16 Years
    Sexes Eligible for Study:
    Male
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    • Ability to provide written informed consent (parental/guardian consent if applicable)/assent per local requirements.

    • Phenotypic evidence of dystrophinopathy based on the onset of characteristic clinical symptoms or signs (for example; proximal muscle weakness, waddling gait, and Gowers' maneuver) by 6 years of age, an elevated serum creatinine kinase level, and ongoing difficulty with walking.

    • Documentation of the presence of a nonsense point mutation in the dystrophin gene as determined by gene sequencing from a laboratory certified by the College of American Pathologists (CAP), the Clinical Laboratory Improvement Act/Amendment (CLIA) or an equivalent organization.

    • Documentation that a blood sample has been drawn for confirmation of the presence of a nonsense mutation in the dystrophin gene.

    • Use of systemic corticosteroids (prednisone, prednisolone, or deflazacort) for a minimum of 6 months immediately prior to start of study treatment, with no significant change in dosage or dosing regimen (not related to body weight change) for a minimum of 3 months immediately prior to start of study treatment and a reasonable expectation that dosage and dosing regimen will not change significantly for the duration of the study.

    • Valid Screening 6-minute walk distance (6MWD) greater than or equal to (≥) 150 meters. Valid Screening 6MWD must have been less than or equal to (≤) 80% of predicted for age and height.

    • Results of the 2 Baseline 6MWD results must be determined as valid and results of the Day 2 Baseline 6MWD must be within 20% of the Day 1 Baseline 6MWD.

    • Baseline 6MWD (mean of valid Day 1 and Day 2 values) must be no more than a 20% change from the valid Screening 6MWD.

    • Confirmed screening laboratory values within the central laboratory ranges (hepatic, renal, and serum electrolyte parameters).

    • Willingness to abstain from sexual intercourse or employ an approved method of contraception during the period of study drug administration and 6-week follow-up period.

    • Willingness and ability to comply with scheduled visits, drug administration plan, study procedures, laboratory tests, and study restrictions.

    Exclusion Criteria:
    • Treatment with systemic aminoglycoside antibiotics within 3 months prior to start of study treatment.

    • Initiation of systemic corticosteroids therapy within 6 months prior to start of study treatment.

    • Change in systemic corticosteroid therapy (for example; change in type of drug, dose modification not related to body weight change, schedule modification, interruption, or reinitiation) within 3 months prior to start of study treatment.

    • Any change (initiation, change in type of drug, dose modification, schedule modification,interruption, discontinuation, or reinitiation) in prophylaxis/treatment for congestive heart failure (CHF) within 3 months prior to start of study treatment.

    • Ongoing use of coumarin-based anticoagulants (for example; warfarin), phenytoin, tolbutamide, or paclitaxel.

    • Prior therapy with ataluren.

    • Known hypersensitivity to any of the ingredients or excipients of the study drug.

    • Exposure to another investigational drug within 3 months prior to start of study treatment.

    • History of major surgical procedure within 6 weeks prior to start of study treatment.

    • Ongoing immunosuppressive therapy (other than corticosteroids).

    • Ongoing participation in any clinical trial (except for studies specifically approved by PTC Therapeutics).

    • Expectation of major surgical procedure (for example; scoliosis surgery) during the 12-month treatment period of the study.

    • Requirement for daytime ventilator assistance.

    • Uncontrolled clinical symptoms and signs of CHF (American College of Cardiology/American Heart Association Stage C or Stage D).

    • Prior or ongoing medical condition (for example; concomitant illness, psychiatric condition, behavioral disorder, alcoholism, drug abuse), medical history, physical findings (for example; lower limb injury that may affect 6MWT performance), electrocardiogram (ECG) findings, or laboratory abnormality that, in the investigator's opinion, could adversely affect the safety of the participant, makes it unlikely that the course of treatment or follow-up would be completed, or could impair the assessment of study results.

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 University of California, Los Angeles Los Angeles California United States 90095
    2 UC Davis Medical Center Sacramento California United States 95817
    3 Children's Hospital Colorado - Center for Cancer and Blood Disorders Aurora Colorado United States 80045
    4 Child Neurology Center of Northwest Florida Gulf Breeze Florida United States 32561
    5 Rush University Medical Center Chicago Illinois United States 60612
    6 University of Iowa Iowa City Iowa United States 52242
    7 University of Kansas Medical Center Kansas City Kansas United States 66160
    8 Boston Children's Hospital Boston Massachusetts United States 02115
    9 Children's Hospital Boston Boston Massachusetts United States 02115
    10 University of Minnesota Minneapolis Minnesota United States 55455
    11 Washington University School of Medicine, Division of Endocrinology, Metabolism and Lipid Research Saint Louis Missouri United States 63110
    12 Columbia University College of Physicians & Surgeons New York New York United States 10032
    13 Cincinnati Children's Hospital Medical Center Cincinnati Ohio United States 45229-3039
    14 Nationwide Children's Hospital Columbus Ohio United States 43209
    15 Oregon Health & Science University Portland Oregon United States 97239
    16 The Children's Hospital of Philadelphia Philadelphia Pennsylvania United States 19104
    17 Children's Hospital of Pittsburgh Pittsburgh Pennsylvania United States 15224
    18 Childrens Medical Center Dallas, Texas Dallas Texas United States 75207
    19 Texas Children's Hospital Houston Texas United States 77030
    20 University of Utah Salt Lake City Utah United States 84112
    21 Seattle Children's Hospital - Childhood Cancer and Blood Disorders Seattle Washington United States 98105
    22 The Children's Hospital at Westmead Westmead New South Wales Australia 2145
    23 The Royal Children's Hospital Parkville Victoria Australia 3052
    24 UZ Leuven Leuven Belgium 3000
    25 Universidade Federal do Rio de Janeiro - Instituto de Puericultura e Pediatria Martagao Gesteira Rio de Janeiro Brazil 21.941-912
    26 Sao Paulo University -HC/FMUSP São Paulo Brazil 05403-900
    27 Alberta Children's Hospital Calgary Alberta Canada T3B 6A8
    28 British Columbia Children's Hospital Vancouver British Columbia Canada V6H 3V4
    29 Children's Hospital of Western Ontario London Ontario Canada N6A 2E3
    30 Hospital Luis Calvo Mackenna Santiago Región Metropolitana Chile
    31 Hospital Clinico Universidad Catolica Santiago Chile 8330073
    32 University Hospital Brno Brno Czechia 635 00
    33 Motol University Hospital Praha Czechia 150 06
    34 Hospital de la Timone Marseille France 13385
    35 CHU de Nantes Nantes Cedex France 44093
    36 Hopital Necker - Enfants Malades Paris France 75015
    37 Groupe Hospitalier La Pitie-Salpetriere Paris France 75651
    38 University of Essen-Duisburg Essen Germany 45122
    39 University Hospital Medical Center Freiburg Freiburg Germany 79106
    40 Hadassah University Hospital Jerusalem Israel 91240
    41 Policlinico Universitario G. Martino Messina Sicily Italy 98125
    42 Fondazione IRCS Ca Granda Ospedale Maggiore Policlinico di Milano Milan Italy 20122
    43 Bambino Gesu Hospital Rome Italy 00165
    44 U.O. Complessa di Neuropsichiatria Infantile Rome Italy 00168
    45 Seoul National University Hospital Seoul Korea, Republic of 110-744
    46 Medical University of Warsaw Warsaw Poland 85- 822
    47 Hospital Sant Joan de Deu Barcelona Spain 08950
    48 Hospital Universitari i Politecnic la Fe Valencia Spain 46026
    49 Queen Silvia Children's Hospital Goteburg Sweden SE-416 85
    50 Astrid Lindgren Childrens Hospital Stockholm Sweden 17176
    51 CHUV Lausanne Lausanne Switzerland 1011
    52 Hacettepe Childrens Hospital Ankara Turkey 06100
    53 University College London Institute of Child Health London United Kingdom WC1N 1EH
    54 Royal Manchester Children's Hospital Manchester United Kingdom M13 9WL
    55 The Newcastle upon Tyne Hospitals, NHS Foundation Trust Newcastle upon Tyne United Kingdom NE1 3BZ

    Sponsors and Collaborators

    • PTC Therapeutics

    Investigators

    • Study Director: Robert Spiegel, M.D., PTC Therapeutics

    Study Documents (Full-Text)

    None provided.

    More Information

    Additional Information:

    Publications

    None provided.
    Responsible Party:
    PTC Therapeutics
    ClinicalTrials.gov Identifier:
    NCT01826487
    Other Study ID Numbers:
    • PTC124-GD-020-DMD
    • 2012-004527-20
    First Posted:
    Apr 8, 2013
    Last Update Posted:
    Aug 4, 2020
    Last Verified:
    Jul 1, 2020

    Study Results

    Participant Flow

    Recruitment Details A total of 291 participants were screened for eligibility, of which 61 participants did not meet entry criteria.
    Pre-assignment Detail A total of 230 eligible participants were randomized in 1:1 ratio to receive either placebo or ataluren. 2 participants, 1 in each treatment arm, were excluded from intent-to-treat (ITT) population; as they did not have at least 1 valid post-baseline 6-minute walk distance (6MWD) value, a requirement for inclusion in ITT population.
    Arm/Group Title Placebo Ataluren
    Arm/Group Description Participants received placebo matched to ataluren orally 3 times a day (TID) at morning, midday, and evening for 48 weeks. Participants received ataluren suspension orally TID, 10 milligrams/kilogram (mg/kg) at morning, 10 mg/kg at midday, and 20 mg/kg at evening (total daily dose 40 mg/kg) for 48 weeks.
    Period Title: Overall Study
    STARTED 115 115
    As-treated Population 115 115
    ITT Population 114 114
    COMPLETED 111 110
    NOT COMPLETED 4 5

    Baseline Characteristics

    Arm/Group Title Placebo Ataluren Total
    Arm/Group Description Participants received placebo matched to ataluren orally TID at morning, midday, and evening for 48 weeks. Participants received ataluren suspension orally TID, 10 mg/kg at morning, 10 mg/kg at midday, and 20 mg/kg at evening (total daily dose 40 mg/kg) for 48 weeks. Total of all reporting groups
    Overall Participants 115 115 230
    Age (years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [years]
    9.0
    (1.65)
    8.9
    (1.79)
    8.9
    (1.72)
    Sex: Female, Male (Count of Participants)
    Female
    0
    0%
    0
    0%
    0
    0%
    Male
    115
    100%
    115
    100%
    230
    100%
    6 Minute Walk Distance (6MWD) (meters) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [meters]
    362.69
    (81.424)
    364.04
    (73.342)
    363.36
    (77.322)
    Time to Walk/Run 10 Meters (seconds) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [seconds]
    6.83
    (2.924)
    6.66
    (3.078)
    6.75
    (2.996)
    Time to Climb 4 Stairs (seconds) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [seconds]
    6.76
    (7.287)
    5.99
    (5.347)
    6.38
    (6.389)
    Time to Descend 4 Stairs (seconds) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [seconds]
    5.05
    (5.362)
    5.07
    (5.157)
    5.06
    (5.247)
    Physical Function Total Score as Measured by North Star Ambulatory Assessment (NSAA) (units on a scale) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [units on a scale]
    60.2
    (18.37)
    60.9
    (17.97)
    60.6
    (18.14)
    Baseline 6MWT (Count of Participants)
    <300 meters
    22
    19.1%
    25
    21.7%
    47
    20.4%
    >=300 to <400 meters
    52
    45.2%
    47
    40.9%
    99
    43%
    >=400 meters
    41
    35.7%
    43
    37.4%
    84
    36.5%
    Pediatric Outcomes Data Collection Instrument (PODCI) Scores (units on a scale) [Mean (Standard Deviation) ]
    Transfers/Basic Mobility Score
    81.4
    (15.79)
    83.9
    (13.10)
    82.7
    (14.53)
    Sports/Physical Functioning Score
    56.0
    (20.94)
    56.2
    (18.94)
    56.1
    (19.92)

    Outcome Measures

    1. Primary Outcome
    Title Change From Baseline in 6MWD at Week 48
    Description The 6MWD test is a non-encouraged test performed in a 30 meters long flat corridor, where the participant is instructed to walk as far as possible, back and forth around two cones, with the permission to slow down, rest, or stop if needed. Ambulation was assessed via the 6MWD test following standardized procedures by measuring the 6MWD in meters. Participants were not permitted to use assistive devices (walker, long leg braces, or short leg braces) during the 6MWD test. Participants with confirmed loss of ambulation at a particular visit were assigned a 6MWD result of 0. Baseline and Week 48 6MWD values are each the average of two valid 6MWD values, or a single available value if one was missing.
    Time Frame Baseline, Week 48

    Outcome Measure Data

    Analysis Population Description
    ITT population included all participants who were randomized and received any study treatment; and had a valid baseline, and at least one valid post-baseline 6MWD value. Multiple imputation was applied to impute missing values within the treatment groups.
    Arm/Group Title Placebo Ataluren
    Arm/Group Description Participants received placebo matched to ataluren orally TID at morning, midday, and evening for 48 weeks. Participants received ataluren suspension orally TID, 10 mg/kg at morning, 10 mg/kg at midday, and 20 mg/kg at evening (total daily dose 40 mg/kg) for 48 weeks.
    Measure Participants 114 114
    Least Squares Mean (Standard Error) [meters]
    -60.67
    (9.323)
    -47.69
    (9.247)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Placebo, Ataluren
    Comments Analysis was performed using analysis of covariance (ANCOVA) method including stratification factors for age (less than [<] 9 years versus [vs.] greater than or equal to [>=] 9 years), duration of use of corticosteroids at baseline (approx. >=6 to <12 months vs. >=12 months), and baseline 6MWD category (>=350 meters vs <350 meters), as well as baseline 6MWD as covariate.
    Type of Statistical Test Other
    Comments
    Statistical Test of Hypothesis p-Value 0.213
    Comments Threshold for significance at 0.05. Secondary endpoints were tested for significance, only if the primary endpoint was statistically significant.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter Mean Difference (Final Values)
    Estimated Value 12.98
    Confidence Interval (2-Sided) 95%
    -7.44 to 33.39
    Parameter Dispersion Type: Standard Error of the Mean
    Value: 10.415
    Estimation Comments
    2. Secondary Outcome
    Title Time to 10 Percent (%) Persistent Worsening in 6MWD
    Description The 6MWD test is a non-encouraged test performed in a 30 meters long flat corridor, where the participant is instructed to walk as far as possible, back and forth around two cones, with the permission to slow down, rest, or stop if needed. Ambulation was assessed via the 6MWD test following standardized procedures by measuring the 6MWD in meters. Participants were not permitted to use assistive devices (walker, long leg braces, or short leg braces) during the 6MWD test. Time to 10% persistent worsening in 6MWD was defined as the last time that 6MWD was not 10% worse compared with baseline. Time to 10% persistent worsening in 6MWD <300 meters, >=300 to 400 meters, and >=400 meters was evaluated. For participants who did not have 10% 6MWD worsening or who were removed from study, time to 10% 6MWD worsening was censored at the time of the last 6MWD test. Participants who became non-ambulatory were considered to have 10% worsening.
    Time Frame Baseline to Week 48

    Outcome Measure Data

    Analysis Population Description
    ITT population included all participants who were randomized and received any study treatment; and had a valid baseline, and at least one valid post-baseline 6MWD value. Multiple imputation was applied to impute missing values within treatment groups. Here, 'Number analyzed 'signifies participants evaluable for specified categories.
    Arm/Group Title Placebo Ataluren
    Arm/Group Description Participants received placebo matched to ataluren orally TID at morning, midday, and evening for 48 weeks. Participants received ataluren suspension orally TID, 10 mg/kg at morning, 10 mg/kg at midday, and 20 mg/kg at evening (total daily dose 40 mg/kg) for 48 weeks.
    Measure Participants 114 114
    <300 meters
    56
    164
    >=300 to <400 meters
    280
    NA
    >=400 meters
    NA
    NA
    3. Secondary Outcome
    Title Change From Baseline in Time to Walk/Run 10 Meters at Week 48
    Description During the test for walking/running 10 meters, the method of walk/run used by the participant was categorized as follows: 1. Unable to walk independently; 2. Unable to walk independently but can walk with support from a person or with assistive device (full leg calipers [knee-ankle-foot orthoses ] or walker); 3. Highly adapted gait, wide-based lordotic gait, cannot increase walking speed; 4. Moderately adapted gait, can pick up speed but cannot run; 5. Able to pick up speed but runs with a double stance phase (that is, cannot achieve both feet off the ground); 6. Runs and gets both feet off the ground (with no double stance phase). If the time taken to perform a test exceeded 30 seconds or if a participant could not perform the test due to disease progression, a value of 30 seconds was used. A cumulative change from baseline data has been reported.
    Time Frame Baseline, Week 48

    Outcome Measure Data

    Analysis Population Description
    ITT population included all participants who were randomized and received any study treatment; and had a valid baseline, and at least one valid post-baseline 6MWD value. Here, 'Overall number of participants analyzed' signifies participants evaluable for this outcome measure.
    Arm/Group Title Placebo Ataluren
    Arm/Group Description Participants received placebo matched to ataluren orally TID at morning, midday, and evening for 48 weeks. Participants received ataluren suspension orally TID, 10 mg/kg at morning, 10 mg/kg at midday, and 20 mg/kg at evening (total daily dose 40 mg/kg) for 48 weeks.
    Measure Participants 110 109
    Mean (Standard Deviation) [seconds]
    3.47
    (6.393)
    2.27
    (5.216)
    4. Secondary Outcome
    Title Change From Baseline in Time to Climb 4 Stairs at Week 48
    Description During the test for stair-climbing, the method of climbing used by the participant was categorized as follows: 1. Unable to up climb 4 standard stairs; 2. Climbs 4 standard stairs "marking time" (climbs one foot at a time, with both feet on a step before moving to next step), using both arms on one or both handrails; 3. Climbs 4 standard stairs "marking time" (climbs one foot at a time, with both feet on a step before moving to next step), using one arm on one handrail; 4. Climbs 4 standard stairs "marking time" (climbs one foot at a time, with both feet on a step before moving to next step), not needing handrail; 5. Climbs 4 standard stairs alternating feet, needs handrail for support; 6. Climbs 4 standard stairs alternating feet, not needing handrail support. A cumulative change from baseline data has been reported.
    Time Frame Baseline, Week 48

    Outcome Measure Data

    Analysis Population Description
    ITT population included all participants who were randomized and received any study treatment; and had a valid baseline, and at least one valid post-baseline 6MWD value. Here, 'Overall number of participants analyzed' signifies participants evaluable for this outcome measure.
    Arm/Group Title Placebo Ataluren
    Arm/Group Description Participants received placebo matched to ataluren orally TID at morning, midday, and evening for 48 weeks. Participants received ataluren suspension orally TID, 10 mg/kg at morning, 10 mg/kg at midday, and 20 mg/kg at evening (total daily dose 40 mg/kg) for 48 weeks.
    Measure Participants 103 105
    Mean (Standard Deviation) [seconds]
    4.46
    (7.310)
    2.65
    (5.297)
    5. Secondary Outcome
    Title Change From Baseline in Time to Descend 4 Stairs at Week 48
    Description During the test for stair-descending, the method of descending used by the participant was categorized as follows: 1. Unable to descend 4 standard stairs; 2. Descends 4 standard stairs "marking time" (climbs one foot at a time, with both feet on a step before moving to next step), using both arms on one or both handrails; 3. Descends 4 standard stairs "marking time" (climbs one foot at a time, with both feet on a step before moving to next step), using one arm on one handrail; 4. Descends 4 standard stairs "marking time" (climbs one foot at a time, with both feet on a step before moving to next step), not needing handrail; 5. Descends 4 standard stairs alternating feet, needs handrail for support; 6. Descends 4 standard stairs alternating feet, not needing handrail support. A cumulative change from baseline data has been reported.
    Time Frame Baseline, Week 48

    Outcome Measure Data

    Analysis Population Description
    ITT population included all participants who were randomized and received any study treatment; and had a valid baseline, and at least one valid post-baseline 6MWD value. Here, 'Overall number of participants analyzed' signifies participants evaluable for this outcome measure.
    Arm/Group Title Placebo Ataluren
    Arm/Group Description Participants received placebo matched to ataluren orally TID at morning, midday, and evening for 48 weeks. Participants received ataluren suspension orally TID, 10 mg/kg at morning, 10 mg/kg at midday, and 20 mg/kg at evening (total daily dose 40 mg/kg) for 48 weeks.
    Measure Participants 100 106
    Mean (Standard Deviation) [seconds]
    3.97
    (7.854)
    2.15
    (5.306)
    6. Other Pre-specified Outcome
    Title Change From Baseline in Physical Function Total Score as Measured by NSAA at Week 48
    Description Physical function was assessed via the NSAA, a functional scale specifically designed for ambulant Duchenne muscular dystrophy (DMD) participants. The assessment comprised tests for 17 abilities of a participant, such as ability to stand, rise from the floor, get from lying to sitting, get from sitting to standing, raise one's head, stand on one's heels, hop, jump, and run. For each activity, a score of 0, 1, or 2 was recorded, with 0 = "unable to achieve independently," 1 = "modified method but achieves goal independent of physical assistance from another," or 2 = "normal- achieves goal without any assistance." The sum of these scores (except for 'raise one's head' activity score) was reported as the ordinal total score, which was transformed to a linear total score ranging from 0 (worst) to 100 (best). Participants with confirmed loss of ambulation at a particular visit were assigned a score of 0.
    Time Frame Baseline, Week 48

    Outcome Measure Data

    Analysis Population Description
    ITT population included all participants who were randomized and received any study treatment; and had a valid baseline, and at least one valid post-baseline 6MWD value. Here, 'Overall number of participants analyzed' signifies participants evaluable for this outcome measure.
    Arm/Group Title Placebo Ataluren
    Arm/Group Description Participants received placebo matched to ataluren orally TID at morning, midday, and evening for 48 weeks. Participants received ataluren suspension orally TID, 10 mg/kg at morning, 10 mg/kg at midday, and 20 mg/kg at evening (total daily dose 40 mg/kg) for 48 weeks.
    Measure Participants 108 106
    Mean (Standard Deviation) [units on a scale]
    -8.4
    (10.65)
    -6.3
    (10.64)
    7. Other Pre-specified Outcome
    Title Number of Participants With Change From Baseline in Activities of Daily Living and Disease Status at Week 48, as Assessed by a Standardized Survey Administered by Site Personnel
    Description Changes in activities of daily living and disease symptoms were captured via a DMD-specific survey administered by Site personnel. At screening or baseline, the participant and/or parent/caregiver were asked to identify any activities of daily living (for example, ambulation, balance, personal hygiene/grooming, dressing and undressing, self-feeding, using the bathroom, handwriting, school performance, behavior or energy level) or symptoms that were affected by the participant's DMD. At post-baseline visit (Week 48), the same participant and/or parent/caregiver was asked to describe any changes from baseline in those activities of daily living/symptoms, within the following categories: physical functioning; general energy level; cognition/school function; emotional/social functioning; and sleep. Changes from baseline were reported on a 5-point Likert scale: 1 (much worse), 2 (slightly worse), 3 (unchanged), 4 (slightly better), or 5 (much better).
    Time Frame Baseline, Week 48

    Outcome Measure Data

    Analysis Population Description
    ITT population included all participants who were randomized and received any study treatment; and had a valid baseline, and at least one valid post-baseline 6MWD value. Here, 'Number analyzed 'signifies participants evaluable for specified categories.
    Arm/Group Title Placebo Ataluren
    Arm/Group Description Participants received placebo matched to ataluren orally TID at morning, midday, and evening for 48 weeks. Participants received ataluren suspension orally TID, 10 mg/kg at morning, 10 mg/kg at midday, and 20 mg/kg at evening (total daily dose 40 mg/kg) for 48 weeks.
    Measure Participants 114 114
    Much better
    1
    0.9%
    4
    3.5%
    Slightly better
    7
    6.1%
    7
    6.1%
    Unchanged
    67
    58.3%
    73
    63.5%
    Slightly worse
    6
    5.2%
    2
    1.7%
    Much worse
    1
    0.9%
    2
    1.7%
    Much better
    5
    4.3%
    8
    7%
    Slightly better
    13
    11.3%
    16
    13.9%
    Unchanged
    57
    49.6%
    60
    52.2%
    Slightly worse
    19
    16.5%
    21
    18.3%
    Much worse
    18
    15.7%
    3
    2.6%
    Much better
    4
    3.5%
    4
    3.5%
    Slightly better
    8
    7%
    13
    11.3%
    Unchanged
    61
    53%
    65
    56.5%
    Slightly worse
    17
    14.8%
    15
    13%
    Much worse
    15
    13%
    13
    11.3%
    Much better
    4
    3.5%
    5
    4.3%
    Slightly better
    9
    7.8%
    10
    8.7%
    Unchanged
    38
    33%
    44
    38.3%
    Slightly worse
    7
    6.1%
    8
    7%
    Much worse
    7
    6.1%
    1
    0.9%
    Much better
    6
    5.2%
    5
    4.3%
    Slightly better
    12
    10.4%
    20
    17.4%
    Unchanged
    71
    61.7%
    74
    64.3%
    Slightly worse
    3
    2.6%
    3
    2.6%
    Much worse
    0
    0%
    2
    1.7%
    Much better
    3
    2.6%
    8
    7%
    Slightly better
    9
    7.8%
    21
    18.3%
    Unchanged
    75
    65.2%
    68
    59.1%
    Slightly worse
    5
    4.3%
    6
    5.2%
    Much worse
    2
    1.7%
    2
    1.7%
    Much better
    3
    2.6%
    8
    7%
    Slightly better
    12
    10.4%
    12
    10.4%
    Unchanged
    54
    47%
    63
    54.8%
    Slightly worse
    11
    9.6%
    5
    4.3%
    Much worse
    3
    2.6%
    1
    0.9%
    Much better
    3
    2.6%
    3
    2.6%
    Slightly better
    4
    3.5%
    8
    7%
    Unchanged
    73
    63.5%
    76
    66.1%
    Slightly worse
    5
    4.3%
    2
    1.7%
    Much worse
    0
    0%
    2
    1.7%
    Much better
    0
    0%
    1
    0.9%
    Slightly better
    5
    4.3%
    6
    5.2%
    Unchanged
    15
    13%
    13
    11.3%
    Slightly worse
    2
    1.7%
    3
    2.6%
    Much worse
    1
    0.9%
    0
    0%
    8. Other Pre-specified Outcome
    Title Change From Baseline in PODCI Transfers/Basic Mobility and Sports/Physical Functioning Scores at Week 48
    Description Changes in health-related quality of life (HRQL) were measured via the PODCI questionnaire that has been shown to correlate with disease progression and clinical outcome measures in DMD. PODCI includes a Global Functioning Scale and 5 core scales: Upper Extremity and Physical Function,Transfer/Basic Mobility, Sports/Physical Functioning, Pain/Comfort,and Happiness. The following PODCI domains were prespecified in the protocol for analysis:Transfers/Basic Mobility domain assesses difficulty experienced in performing routine motor activities in daily life. Sports/Physical Functioning domain assesses difficulty encountered in participating in more active recreational activities. Each domain was scored from 0 to 100, with 0 representing a poor outcome/worse health, while 100 representing the highest level of functioning and least pain.
    Time Frame Baseline, Week 48

    Outcome Measure Data

    Analysis Population Description
    ITT population included all participants who were randomized and received any study treatment; and had a valid baseline, and at least one valid post-baseline 6MWD value. Here, 'Overall number of participants analyzed' signifies participants evaluable for this outcome measure.
    Arm/Group Title Placebo Ataluren
    Arm/Group Description Participants received placebo matched to ataluren orally TID at morning, midday, and evening for 48 weeks. Participants received ataluren suspension orally TID, 10 mg/kg at morning, 10 mg/kg at midday, and 20 mg/kg at evening (total daily dose 40 mg/kg) for 48 weeks.
    Measure Participants 110 109
    Transfers/Basic Mobility Score
    -8.8
    (15.80)
    -6.6
    (14.76)
    Sports/Physical Functioning Score
    -7.3
    (15.87)
    -5.6
    (15.91)
    9. Other Pre-specified Outcome
    Title Ataluren Plasma Concentration
    Description Plasma samples for the determination of ataluren concentrations were analyzed using a validated high performance liquid chromatography with tandem mass spectrometry (HPLC/MS-MS) method with a lower limit of quantitation of 0.5 micrograms/milliliter (mcg/mL).
    Time Frame Weeks 8, 16, 24, 32, 40, and 48

    Outcome Measure Data

    Analysis Population Description
    As-treated population included all randomized participants who actually received any study treatment. Here, 'Number analyzed 'signifies participants evaluable at specified timepoint.
    Arm/Group Title Ataluren
    Arm/Group Description Participants received ataluren suspension orally TID, 10 mg/kg at morning, 10 mg/kg at midday, and 20 mg/kg at evening (total daily dose 40 mg/kg) for 48 weeks.
    Measure Participants 115
    Week 08
    4.230
    (5.3913)
    Week 16
    3.429
    (3.9275)
    Week 24
    3.323
    (3.6135)
    Week 32
    3.480
    (3.1053)
    Week 40
    3.997
    (4.7615)
    Week 48
    3.544
    (3.8082)
    10. Other Pre-specified Outcome
    Title Study Drug Compliance
    Description Study drug compliance was assessed by quantification of used and unused study drug. Compliance was assessed in terms of the percentage of drug actually taken relative to the amount that should have been taken during the study.
    Time Frame Baseline to Week 48

    Outcome Measure Data

    Analysis Population Description
    As-treated population included all randomized participants who actually received any study treatment.
    Arm/Group Title Placebo Ataluren
    Arm/Group Description Participants received placebo matched to ataluren orally TID at morning, midday, and evening for 48 weeks. Participants received ataluren suspension orally TID, 10 mg/kg at morning, 10 mg/kg at midday, and 20 mg/kg at evening (total daily dose 40 mg/kg) for 48 weeks.
    Measure Participants 115 115
    Mean (Standard Deviation) [percentage of drug]
    95.1
    (9.43)
    95.7
    (7.57)
    11. Secondary Outcome
    Title Percentage of Participants With Treatment-Emergent Adverse Events (AEs)
    Description An AE was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. Serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. AEs included both SAEs and non-serious AEs. Treatment-emergent adverse event (TEAE) was defined as an adverse event that occurred or worsened in the period extending from first dose of study drug to 6 weeks after the last dose of study drug. A summary of other non-serious AEs and all SAEs, regardless of causality is located in the 'Reported AE section'.
    Time Frame Baseline up to Week 54

    Outcome Measure Data

    Analysis Population Description
    As-treated population included all randomized participants who actually received any study treatment.
    Arm/Group Title Placebo Ataluren
    Arm/Group Description Participants received placebo matched to ataluren orally TID at morning, midday, and evening for 48 weeks. Participants received ataluren suspension orally TID, 10 mg/kg at morning, 10 mg/kg at midday, and 20 mg/kg at evening (total daily dose 40 mg/kg) for 48 weeks.
    Measure Participants 115 115
    Number [percentage of participants]
    87.8
    76.3%
    89.6
    77.9%

    Adverse Events

    Time Frame Baseline up to 6 weeks after the last dose of study drug (Week 54)
    Adverse Event Reporting Description As-treated population included all randomized participants who actually received any study treatment.
    Arm/Group Title Placebo Ataluren
    Arm/Group Description Participants received placebo matched to ataluren orally TID at morning, midday, and evening for 48 weeks. Participants received ataluren suspension orally TID, 10 mg/kg at morning, 10 mg/kg at midday, and 20 mg/kg at evening (total daily dose 40 mg/kg) for 48 weeks.
    All Cause Mortality
    Placebo Ataluren
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total / (NaN) / (NaN)
    Serious Adverse Events
    Placebo Ataluren
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 4/115 (3.5%) 4/115 (3.5%)
    Cardiac disorders
    Myocarditis 0/115 (0%) 0 1/115 (0.9%) 1
    Hepatobiliary disorders
    Hepatic function abnormal 0/115 (0%) 0 1/115 (0.9%) 1
    Infections and infestations
    Pneumonia 2/115 (1.7%) 2 0/115 (0%) 0
    Bronchiolitis 1/115 (0.9%) 1 0/115 (0%) 0
    Gastroenteritis 0/115 (0%) 0 1/115 (0.9%) 1
    Injury, poisoning and procedural complications
    Post-traumatic pain 1/115 (0.9%) 1 0/115 (0%) 0
    Femur fracture 0/115 (0%) 0 1/115 (0.9%) 1
    Lower limb fracture 0/115 (0%) 0 1/115 (0.9%) 1
    Musculoskeletal and connective tissue disorders
    Tendon disorder 1/115 (0.9%) 1 0/115 (0%) 0
    Respiratory, thoracic and mediastinal disorders
    Adenoidal hypertrophy 1/115 (0.9%) 1 0/115 (0%) 0
    Nasal turbinate hypertrophy 1/115 (0.9%) 1 0/115 (0%) 0
    Other (Not Including Serious) Adverse Events
    Placebo Ataluren
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 99/115 (86.1%) 103/115 (89.6%)
    Blood and lymphatic system disorders
    Neutropenia 0/115 (0%) 1/115 (0.9%)
    Splenomegaly 0/115 (0%) 1/115 (0.9%)
    Leukocytosis 1/115 (0.9%) 0/115 (0%)
    Lymphadenopathy 1/115 (0.9%) 0/115 (0%)
    Cardiac disorders
    Right ventricular hypertrophy 0/115 (0%) 2/115 (1.7%)
    Left ventricular dysfunction 0/115 (0%) 1/115 (0.9%)
    Left ventricular hypertrophy 0/115 (0%) 1/115 (0.9%)
    Myocardial fibrosis 0/115 (0%) 1/115 (0.9%)
    Palpitations 2/115 (1.7%) 1/115 (0.9%)
    Cardiomyopathy 1/115 (0.9%) 0/115 (0%)
    Wolff-Parkinson-White syndrome 1/115 (0.9%) 0/115 (0%)
    Ear and labyrinth disorders
    Ear pain 4/115 (3.5%) 0/115 (0%)
    Middle ear effusion 1/115 (0.9%) 0/115 (0%)
    Tympanic membrane disorder 1/115 (0.9%) 0/115 (0%)
    Endocrine disorders
    Hypothyroidism 0/115 (0%) 1/115 (0.9%)
    Hyperaldosteronism 1/115 (0.9%) 0/115 (0%)
    Eye disorders
    Astigmatism 0/115 (0%) 1/115 (0.9%)
    Cataract 1/115 (0.9%) 1/115 (0.9%)
    Conjunctivitis 2/115 (1.7%) 0/115 (0%)
    Eye allergy 0/115 (0%) 1/115 (0.9%)
    Conjunctivitis allergic 1/115 (0.9%) 0/115 (0%)
    Eye movement disorder 1/115 (0.9%) 0/115 (0%)
    Eyelid oedema 1/115 (0.9%) 0/115 (0%)
    Myopia 1/115 (0.9%) 0/115 (0%)
    Gastrointestinal disorders
    Diarrhoea 10/115 (8.7%) 20/115 (17.4%)
    Abdominal pain upper 13/115 (11.3%) 9/115 (7.8%)
    Abdominal pain 5/115 (4.3%) 7/115 (6.1%)
    Abdominal discomfort 0/115 (0%) 3/115 (2.6%)
    Constipation 10/115 (8.7%) 3/115 (2.6%)
    Flatulence 1/115 (0.9%) 2/115 (1.7%)
    Abnormal faeces 0/115 (0%) 1/115 (0.9%)
    Breath odour 0/115 (0%) 1/115 (0.9%)
    Dental caries 0/115 (0%) 1/115 (0.9%)
    Dry mouth 1/115 (0.9%) 1/115 (0.9%)
    Dyspepsia 3/115 (2.6%) 1/115 (0.9%)
    Gastritis 1/115 (0.9%) 1/115 (0.9%)
    Gastrooesophageal reflux disease 2/115 (1.7%) 1/115 (0.9%)
    Haemorrhoids 1/115 (0.9%) 1/115 (0.9%)
    Anal fissure 1/115 (0.9%) 0/115 (0%)
    Food poisoning 1/115 (0.9%) 0/115 (0%)
    Haematochezia 1/115 (0.9%) 0/115 (0%)
    Inguinal hernia 1/115 (0.9%) 0/115 (0%)
    Irritable bowel syndrome 1/115 (0.9%) 0/115 (0%)
    Vomiting 21/115 (18.3%) 26/115 (22.6%)
    Nausea 7/115 (6.1%) 7/115 (6.1%)
    Tooth crowding 0/115 (0%) 2/115 (1.7%)
    Malocclusion 0/115 (0%) 1/115 (0.9%)
    Odynophagia 0/115 (0%) 1/115 (0.9%)
    Oral pain 0/115 (0%) 1/115 (0.9%)
    Rectal haemorrhage 2/115 (1.7%) 0/115 (0%)
    Swollen tongue 1/115 (0.9%) 0/115 (0%)
    Toothache 1/115 (0.9%) 0/115 (0%)
    General disorders
    Pyrexia 12/115 (10.4%) 16/115 (13.9%)
    Disease progression 14/115 (12.2%) 9/115 (7.8%)
    Abasia 0/115 (0%) 3/115 (2.6%)
    Oedema peripheral 0/115 (0%) 3/115 (2.6%)
    Fatigue 3/115 (2.6%) 1/115 (0.9%)
    Non-cardiac chest pain 1/115 (0.9%) 1/115 (0.9%)
    Influenza like illness 2/115 (1.7%) 1/115 (0.9%)
    Gait disturbance 1/115 (0.9%) 0/115 (0%)
    Malaise 3/115 (2.6%) 0/115 (0%)
    Thirst 1/115 (0.9%) 0/115 (0%)
    Hepatobiliary disorders
    Hepatic function abnormal 1/115 (0.9%) 0/115 (0%)
    Hepatic steatosis 1/115 (0.9%) 0/115 (0%)
    Immune system disorders
    Allergy to chemicals 0/115 (0%) 1/115 (0.9%)
    Seasonal allergy 2/115 (1.7%) 2/115 (1.7%)
    Rhinitis allergic 0/115 (0%) 1/115 (0.9%)
    Allergy to vaccine 1/115 (0.9%) 0/115 (0%)
    Drug hypersensitivity 2/115 (1.7%) 0/115 (0%)
    Infections and infestations
    Ear infection 1/115 (0.9%) 6/115 (5.2%)
    Gastroenteritis 4/115 (3.5%) 5/115 (4.3%)
    Influenza 5/115 (4.3%) 3/115 (2.6%)
    Bronchitis 3/115 (2.6%) 2/115 (1.7%)
    Conjunctivitis infective 0/115 (0%) 2/115 (1.7%)
    Fungal skin infection 1/115 (0.9%) 2/115 (1.7%)
    Gastroenteritis viral 0/115 (0%) 2/115 (1.7%)
    Gastrointestinal viral infection 0/115 (0%) 2/115 (1.7%)
    Hordeolum 3/115 (2.6%) 2/115 (1.7%)
    Eye infection 1/115 (0.9%) 1/115 (0.9%)
    Gingivitis 0/115 (0%) 1/115 (0.9%)
    Herpes simplex 0/115 (0%) 1/115 (0.9%)
    Lower respiratory tract infection 4/115 (3.5%) 1/115 (0.9%)
    Lung infection 0/115 (0%) 1/115 (0.9%)
    Acute tonsillitis 1/115 (0.9%) 0/115 (0%)
    Adenoiditis 1/115 (0.9%) 0/115 (0%)
    Gastrointestinal infection 2/115 (1.7%) 0/115 (0%)
    Gingival infection 1/115 (0.9%) 0/115 (0%)
    Helminthic infection 1/115 (0.9%) 0/115 (0%)
    Infected bites 1/115 (0.9%) 0/115 (0%)
    Nasopharyngitis 22/115 (19.1%) 24/115 (20.9%)
    Upper respiratory tract infection 6/115 (5.2%) 11/115 (9.6%)
    Rhinitis 4/115 (3.5%) 8/115 (7%)
    Pharyngitis 4/115 (3.5%) 4/115 (3.5%)
    Tonsillitis 2/115 (1.7%) 3/115 (2.6%)
    Sinusitis 2/115 (1.7%) 5/115 (4.3%)
    Viral infection 3/115 (2.6%) 3/115 (2.6%)
    Nail infection 0/115 (0%) 2/115 (1.7%)
    Respiratory tract infection 1/115 (0.9%) 2/115 (1.7%)
    Pneumonia 0/115 (0%) 2/115 (1.7%)
    Otitis externa 0/115 (0%) 1/115 (0.9%)
    Otitis media 2/115 (1.7%) 1/115 (0.9%)
    Parasitic gastroenteritis 0/115 (0%) 1/115 (0.9%)
    Skin infection 1/115 (0.9%) 1/115 (0.9%)
    Mycoplasma infection 1/115 (0.9%) 0/115 (0%)
    Oral candidiasis 1/115 (0.9%) 0/115 (0%)
    Oral herpes 1/115 (0.9%) 0/115 (0%)
    Pharyngitis streptococcal 1/115 (0.9%) 0/115 (0%)
    Rubella 1/115 (0.9%) 0/115 (0%)
    Tracheitis 1/115 (0.9%) 0/115 (0%)
    Urinary tract infection 2/115 (1.7%) 0/115 (0%)
    Injury, poisoning and procedural complications
    Arthropod bite 0/115 (0%) 2/115 (1.7%)
    Arthropod sting 1/115 (0.9%) 1/115 (0.9%)
    Concussion 1/115 (0.9%) 0/115 (0%)
    Fall 20/115 (17.4%) 21/115 (18.3%)
    Contusion 4/115 (3.5%) 3/115 (2.6%)
    Ligament sprain 7/115 (6.1%) 3/115 (2.6%)
    Laceration 1/115 (0.9%) 2/115 (1.7%)
    Post-traumatic pain 4/115 (3.5%) 2/115 (1.7%)
    Spinal compression fracture 1/115 (0.9%) 2/115 (1.7%)
    Electrical burn 0/115 (0%) 1/115 (0.9%)
    Excoriation 1/115 (0.9%) 1/115 (0.9%)
    Fibula fracture 0/115 (0%) 1/115 (0.9%)
    Foot fracture 1/115 (0.9%) 1/115 (0.9%)
    Hand fracture 1/115 (0.9%) 1/115 (0.9%)
    Joint injury 1/115 (0.9%) 1/115 (0.9%)
    Muscle injury 0/115 (0%) 1/115 (0.9%)
    Muscle strain 0/115 (0%) 1/115 (0.9%)
    Scratch 0/115 (0%) 1/115 (0.9%)
    Tibia fracture 0/115 (0%) 1/115 (0.9%)
    Tooth injury 0/115 (0%) 1/115 (0.9%)
    Ulna fracture 0/115 (0%) 1/115 (0.9%)
    Upper limb fracture 0/115 (0%) 1/115 (0.9%)
    Head injury 1/115 (0.9%) 0/115 (0%)
    Limb injury 1/115 (0.9%) 0/115 (0%)
    Lip injury 1/115 (0.9%) 0/115 (0%)
    Thermal burn 2/115 (1.7%) 0/115 (0%)
    Investigations
    Renin increased 3/115 (2.6%) 1/115 (0.9%)
    Metabolism and nutrition disorders
    Hypertriglyceridaemia 3/115 (2.6%) 5/115 (4.3%)
    Decreased appetite 2/115 (1.7%) 3/115 (2.6%)
    Electrolyte imbalance 1/115 (0.9%) 2/115 (1.7%)
    Vitamin D deficiency 0/115 (0%) 2/115 (1.7%)
    Abnormal weight gain 1/115 (0.9%) 1/115 (0.9%)
    Dyslipidaemia 0/115 (0%) 1/115 (0.9%)
    Fluid retention 0/115 (0%) 1/115 (0.9%)
    Hypercholesterolaemia 2/115 (1.7%) 1/115 (0.9%)
    Hyperlipidaemia 1/115 (0.9%) 1/115 (0.9%)
    Iron deficiency 0/115 (0%) 1/115 (0.9%)
    Hyperglycaemia 1/115 (0.9%) 0/115 (0%)
    Hyperkalaemia 1/115 (0.9%) 0/115 (0%)
    Hyperuricaemia 2/115 (1.7%) 0/115 (0%)
    Hypervitaminosis D 1/115 (0.9%) 0/115 (0%)
    Hypoglycaemia 1/115 (0.9%) 0/115 (0%)
    Hyponatraemia 1/115 (0.9%) 0/115 (0%)
    Increased appetite 1/115 (0.9%) 0/115 (0%)
    Metabolic acidosis 1/115 (0.9%) 0/115 (0%)
    Musculoskeletal and connective tissue disorders
    Back pain 8/115 (7%) 11/115 (9.6%)
    Arthralgia 5/115 (4.3%) 6/115 (5.2%)
    Foot deformity 2/115 (1.7%) 3/115 (2.6%)
    Growing pains 0/115 (0%) 1/115 (0.9%)
    Bone pain 2/115 (1.7%) 0/115 (0%)
    Pain in extremity 14/115 (12.2%) 10/115 (8.7%)
    Myalgia 0/115 (0%) 3/115 (2.6%)
    Musculoskeletal chest pain 2/115 (1.7%) 2/115 (1.7%)
    Musculoskeletal pain 2/115 (1.7%) 2/115 (1.7%)
    Joint contracture 0/115 (0%) 1/115 (0.9%)
    Muscle atrophy 0/115 (0%) 1/115 (0.9%)
    Muscle tightness 0/115 (0%) 1/115 (0.9%)
    Muscular weakness 1/115 (0.9%) 1/115 (0.9%)
    Osteoporosis 0/115 (0%) 1/115 (0.9%)
    Scoliosis 2/115 (1.7%) 1/115 (0.9%)
    Tendinous contracture 0/115 (0%) 1/115 (0.9%)
    Joint crepitation 1/115 (0.9%) 0/115 (0%)
    Lordosis 1/115 (0.9%) 0/115 (0%)
    Muscle spasms 1/115 (0.9%) 0/115 (0%)
    Osteopenia 2/115 (1.7%) 0/115 (0%)
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Skin papilloma 2/115 (1.7%) 1/115 (0.9%)
    Nervous system disorders
    Headache 21/115 (18.3%) 21/115 (18.3%)
    Autism 0/115 (0%) 1/115 (0.9%)
    Coordination abnormal 0/115 (0%) 1/115 (0.9%)
    Epilepsy 0/115 (0%) 1/115 (0.9%)
    Migraine 1/115 (0.9%) 1/115 (0.9%)
    Dizziness 1/115 (0.9%) 0/115 (0%)
    Hypotonia 1/115 (0.9%) 0/115 (0%)
    Sinus headache 0/115 (0%) 2/115 (1.7%)
    Petit mal epilepsy 0/115 (0%) 1/115 (0.9%)
    Psychomotor hyperactivity 1/115 (0.9%) 1/115 (0.9%)
    Restless legs syndrome 0/115 (0%) 1/115 (0.9%)
    Tremor 0/115 (0%) 1/115 (0.9%)
    Psychiatric disorders
    Attention deficit/hyperactivity disorder 1/115 (0.9%) 3/115 (2.6%)
    Aggression 0/115 (0%) 2/115 (1.7%)
    Sleep disorder 0/115 (0%) 2/115 (1.7%)
    Abnormal behaviour 0/115 (0%) 1/115 (0.9%)
    Negativism 0/115 (0%) 1/115 (0.9%)
    Obsessive-compulsive disorder 1/115 (0.9%) 1/115 (0.9%)
    Anxiety 2/115 (1.7%) 0/115 (0%)
    Dysphemia 1/115 (0.9%) 0/115 (0%)
    Middle insomnia 1/115 (0.9%) 0/115 (0%)
    Mood swings 2/115 (1.7%) 0/115 (0%)
    Renal and urinary disorders
    Haematuria 1/115 (0.9%) 7/115 (6.1%)
    Dysuria 3/115 (2.6%) 2/115 (1.7%)
    Enuresis 1/115 (0.9%) 2/115 (1.7%)
    Bladder trabeculation 0/115 (0%) 1/115 (0.9%)
    Flank pain 0/115 (0%) 1/115 (0.9%)
    Hypercalciuria 1/115 (0.9%) 0/115 (0%)
    Myoglobinuria 1/115 (0.9%) 0/115 (0%)
    Nephrolithiasis 2/115 (1.7%) 0/115 (0%)
    Urinary incontinence 1/115 (0.9%) 2/115 (1.7%)
    Polyuria 0/115 (0%) 1/115 (0.9%)
    Renal cyst 0/115 (0%) 1/115 (0.9%)
    Urine abnormality 2/115 (1.7%) 1/115 (0.9%)
    Pollakiuria 1/115 (0.9%) 0/115 (0%)
    Reproductive system and breast disorders
    Genital discomfort 0/115 (0%) 1/115 (0.9%)
    Respiratory, thoracic and mediastinal disorders
    Cough 13/115 (11.3%) 19/115 (16.5%)
    Epistaxis 4/115 (3.5%) 7/115 (6.1%)
    Oropharyngeal pain 6/115 (5.2%) 7/115 (6.1%)
    Nasal congestion 2/115 (1.7%) 3/115 (2.6%)
    Rhinorrhoea 3/115 (2.6%) 3/115 (2.6%)
    Wheezing 0/115 (0%) 3/115 (2.6%)
    Asthmatic crisis 0/115 (0%) 1/115 (0.9%)
    Productive cough 0/115 (0%) 1/115 (0.9%)
    Sneezing 0/115 (0%) 1/115 (0.9%)
    Dyspnoea 1/115 (0.9%) 0/115 (0%)
    Sinus congestion 2/115 (1.7%) 0/115 (0%)
    Sleep apnoea syndrome 2/115 (1.7%) 0/115 (0%)
    Throat irritation 1/115 (0.9%) 0/115 (0%)
    Skin and subcutaneous tissue disorders
    Blister 0/115 (0%) 1/115 (0.9%)
    Acne 1/115 (0.9%) 0/115 (0%)
    Dermatitis allergic 1/115 (0.9%) 0/115 (0%)
    Rash 4/115 (3.5%) 4/115 (3.5%)
    Ingrowing nail 0/115 (0%) 2/115 (1.7%)
    Pruritus 2/115 (1.7%) 2/115 (1.7%)
    Rash erythematous 1/115 (0.9%) 2/115 (1.7%)
    Dry skin 0/115 (0%) 1/115 (0.9%)
    Ecchymosis 0/115 (0%) 1/115 (0.9%)
    Hair texture abnormal 0/115 (0%) 1/115 (0.9%)
    Hirsutism 0/115 (0%) 1/115 (0.9%)
    Seborrhoeic dermatitis 0/115 (0%) 1/115 (0.9%)
    Skin burning sensation 0/115 (0%) 1/115 (0.9%)
    Skin lesion 0/115 (0%) 1/115 (0.9%)
    Skin mass 0/115 (0%) 1/115 (0.9%)
    Erythema 1/115 (0.9%) 0/115 (0%)
    Skin exfoliation 1/115 (0.9%) 0/115 (0%)
    Skin hyperpigmentation 1/115 (0.9%) 0/115 (0%)
    Vascular disorders
    Hypertension 2/115 (1.7%) 1/115 (0.9%)
    Hypotension 0/115 (0%) 1/115 (0.9%)
    Aortic dilatation 1/115 (0.9%) 0/115 (0%)
    Flushing 3/115 (2.6%) 0/115 (0%)
    Haematoma 1/115 (0.9%) 0/115 (0%)

    Limitations/Caveats

    [Not Specified]

    More Information

    Certain Agreements

    Principal Investigators are NOT employed by the organization sponsoring the study.

    The Sponsor can review results and/or communications prior to public release and can embargo communications regarding trial results for a period that is up to 180 days from the time submitted to the sponsor for review. The sponsor may consult with the PI to require changes to the communication or extend the embargo.

    Results Point of Contact

    Name/Title Patient Advocacy
    Organization PTC Therapeutics, Inc.
    Phone 1-866-562-4620
    Email medinfo@ptcbio.com
    Responsible Party:
    PTC Therapeutics
    ClinicalTrials.gov Identifier:
    NCT01826487
    Other Study ID Numbers:
    • PTC124-GD-020-DMD
    • 2012-004527-20
    First Posted:
    Apr 8, 2013
    Last Update Posted:
    Aug 4, 2020
    Last Verified:
    Jul 1, 2020