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Hereditary Inclusion Body MyopathyPhase 3GNEMNCT02377921

Phase 3 Randomized, Double-Blind, Placebo-Controlled Study to Evaluate Sialic Acid in Patients With Glucosamine (UDP-N-acetyl)-2-epimerase Myopathy (GNEM) or Hereditary Inclusion Body Myopathy (HIBM)

A Phase 3 study testing aceneuramic acid extended-release (Ace-ER) in people with Hereditary Inclusion Body Myopathy and Distal Myopathy With Rimmed Vacuoles, run by Ultragenyx Pharmaceutical Inc at 13 sites in 7 countries.

Completed

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

Official record
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Trial summary

The primary objective of this study is to evaluate the effect of 6 g/day aceneuramic acid extended-release (Ace-ER) treatment of participants with GNEM on upper extremity muscle strength (upper extremity composite [UEC] score) as measured by dynamometry. Read more about this study

Who is it for?
Ages 18 to 55 years
What is being tested?
aceneuramic acid extended-release (Ace-ER)
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
89 participants
Where
13 sitesin 7 countries
Study dates
20 May 2015to 9 Jun 2017
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

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

  • Ages 18 to 55 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Male or female, aged 18 to 55 years, inclusive
  • Willing and able to provide written, signed informed consent after the nature of the study has been explained, and before any research-related procedures are conducted
  • Have a documented diagnosis of GNEM, HIBM, distal myopathy with rimmed vacuoles (DMRV), or Nonaka disease due to previously demonstrated mutations in the gene encoding the GNE/N-acetylmannosamine kinase (MNK) enzyme (genotyping will not be conducted in this study)
  • Able to provide reproducible force in elbow flexors (i.e. two dynamometry force values with no more than 15% variability in the dominant arm) at Screening
  • Able to walk a minimum of 200 meters during the six-meter walk test (6MWT) at Screening without the use of assistive devices, including a cane, crutch(es), walker, wheelchair or scooter (ankle foot orthosis/orthoses are permitted)
  • Willing and able to comply with all study procedures
  • Participants of child-bearing potential or with partners of child-bearing potential who have not undergone a bilateral salpingo-oophorectomy and are sexually active must consent to use a highly effective method of contraception as determined by the site investigator (i.e. oral hormonal contraceptives, patch hormonal contraceptives, vaginal ring, intrauterine device, physical double-barrier methods, surgical hysterectomy, vasectomy, tubal ligation, or true abstinence [when this is in line with the preferred and usual lifestyle of the subject], which means not having sex because the subject chooses not to), from the period following the signing of the informed consent through 3 months after last dose of study drug
  • Females of childbearing potential must have a negative pregnancy test at Screening and be willing to have additional pregnancy tests during the study. Females considered not of childbearing potential include those who have been in menopause for at least two years, have had tubal ligation at least one year prior to Screening, or who have had a total hysterectomy or bilateral salpingo-oophorectomy

Who cannot join

  • Ingestion of N-acetyl-D-mannosamine (ManNAc), sialic acid (SA), or related metabolites; intravenous immunoglobulin (IVIG); or anything that can be metabolized to produce SA in the body within 60 days prior to the Screening Visit
  • History of more than 30 days treatment with SA-ER and/or Sialic Acid Immediate Release (SA-IR) in prior clinical trials in the past year
  • Has had any hypersensitivity to SA or its excipients that, in the judgment of the investigator, places the subject at increased risk for adverse effects
  • Has serum transaminase (i.e. aspartate aminotransferase [AST] or gamma-glutamyl transpeptidase [GGT]) levels greater than 3X the upper limit of normal (ULN) for age/gender, or serum creatinine of greater than 2X ULN at Screening
  • Pregnant or breastfeeding at Screening or planning to become pregnant (self or partner) at any time during the study
  • Use of any investigational product or investigational medical device within 30 days prior to Screening, or anticipated requirement for any investigational agent prior to completion of all scheduled study assessments
  • Has a condition of such severity and acuity, in the opinion of the investigator, that it warrants immediate surgical intervention or other treatment or may not allow safe participation in the study
  • Has a concurrent disease, active suicidal ideation, or other condition that, in the view of the investigator, places the subject at high risk of poor treatment compliance or of not completing the study, or would interfere with study participation or would affect safety

Trial locations and contacts

13 sites in 7 countries.

13 sites in 7 countries

United States4 sites
  • University of California, Irvine

    Irvine, California, 92697

  • New York University School of Medicine

    New York, New York, 10016

  • Icahn School of Medicine at Mount Sinai

    New York, New York, 10029

  • Washington University School of Medicine

    St Louis, Missouri, 63110

Other trials in United States

Italy3 sites
  • University of Messina

    Messina

  • University of Milan

    Milan

  • Università Cattolica

    Rome

Other trials in Italy

France2 sites
  • Institut de Myologie GH Pitié-Salpêtrière

    Paris

  • CHU La Réunion - site GHSR

    Saint-Pierre, Reunion

Other trials in France

Bulgaria1 site
  • UMHAT "Alexandrovska"

    Sofia

Other trials in Bulgaria

Canada1 site
  • McMaster University

    Hamilton, Ontario, L8N3Z5

Other trials in Canada

Israel1 site
  • Hadassah-Hebrew University Medical Center

    Jerusalem

Other trials in Israel

United Kingdom1 site
  • The Newcastle upon Tyne Hospitals

    Newcastle upon Tyne, Tyne and Wear, NE1 4LP

Other trials in United Kingdom

About this study

Official title: A Phase 3 Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of Sialic Acid Extended-Release Tablets in Patients With GNE Myopathy (GNEM) or Hereditary Inclusion Body Myopathy (HIBM)

The primary objective of this study is to evaluate the effect of 6 g/day aceneuramic acid extended-release (Ace-ER) treatment of participants with GNEM on upper extremity muscle strength (upper extremity composite [UEC] score) as measured by dynamometry.

Being tested
aceneuramic acid extended-release (Ace-ER), Placebo
Keywords
GNE Myopathy, GNEM, HIBM, Nonaka, Hereditary Inclusion Body Myopathy, DMRV
Medical subject headings
Distal myopathy, Nonaka type

What participants receive

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

  • aceneuramic acid extended-release (Ace-ER)Drug

    Also called UX001, sialic acid extended-release (SA-ER)

    tablets for oral use

  • PlaceboDrug

    tablets for oral use

Study groups in NCT02377921
Study groupRoleWhat they receive
Aceneuramic Acid Extended-Release (Ace-ER)ExperimentalAce-ER 6 g/day, divided 3 times per day (TID) for 48 weeks.
Receives: Drug: aceneuramic acid extended-release (Ace-ER)
PlaceboPlacebo comparatorMatching placebo TID for 48 weeks.
Receives: Drug: Placebo

What is being measured

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

  1. Change From Baseline in UEC Score (Total Force in kg) at Week 48

    Muscle strength based on the maximum voluntary isometric contraction (MVIC) against a dynamometer was measured bilaterally in the following upper extremity muscle groups: gross grip, shoulder abductors, elbow flexors, and elbow extensors. The UEC is derived from the sum of the average of the right and left total force values (measured in kg).

    Measured: Baseline, Week 48

Secondary outcomes (8)
  1. Change From Baseline in Muscle Strength in the Knee Extensors at Week 48

    Lower extremity muscle strength in the knee extensors was measured by dynamometry. Bilateral total force was defined as the average of the right and left force values (measured in kg).

    Measured: Baseline, Week 48

  2. Change From Baseline in LEC Score (Total Force in kg) at Week 48

    Muscle strength based on MVIC against a dynamometer was measured bilaterally in the following lower extremity muscle groups: knee flexors, hip flexors, hip extensors, hip abductors and hip adductors. The LEC is derived from the sum of the average of the right and left total force values (measured in kg).

    Measured: Baseline, Week 48

  3. Change From Baseline in GNEM FAS Mobility Domain Score at Week 48

    Lower extremity use and function was assessed using the Mobility domain of the GNEM-FAS instrument a disease-specific measure developed to assess the functional impact of changes in muscle strength on mobility (reflective of the lower extremities). This mobility score ranges from 0 to 40 with higher scores representing greater mobility.

    Measured: Baseline, Week 48

  4. Change From Baseline in Number of Lifts in the 30 Second Weighted Arm Lift Test at Week 48

    Upper extremity function was assessed using a weighted arm lift test performed bilaterally. The number of times the participant can raise a 1 kg weight above the head in a 30-second period was recorded.

    Measured: Baseline, Week 48

  5. Change From Baseline in Number of Stands in the Sit to Stand Test at Week 48

    Lower extremity function was assessed using a sit-to-stand test. The number of times the participant can rise from a seated to a standing position in a 30-second period was recorded.

    Measured: Baseline, Week 48

  6. Change From Baseline in Meters Walked in the 6MWT at Week 48

    The total distance walked (meters) in a 6-minute period was measured.

    Measured: Baseline, Week 48

  7. Change From Baseline in Percent Predicted Meters Walked in the 6MWT at Week 48

    The total distance walked (meters) in a 6-minute period was measured, and the percent predicted distance based on normative data for age and gender was estimated.

    Measured: Baseline, Week 48

  8. Change From Baseline in GNEM FAS Upper Extremity Domain Score at Week 48

    Upper extremity use and function was assessed using the Mobility domain of the GNEM-FAS instrument a disease-specific measure developed to assess the functional impact of changes in muscle strength on mobility (reflective of the upper extremities). This mobility score ranges from 0 to 40 with higher scores representing greater mobility.

    Measured: Baseline, Week 48

Timeline

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

  1. First posted4 Mar 2015 (estimated)
  2. Study start20 May 2015
  3. Primary completion9 Jun 2017
  4. Study completion9 Jun 2017

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
89 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02377921
Sponsor's protocol ID
UX001-CL301
Acronym
GNEM
Status last verified
Jun 2019
First submitted
27 Feb 2015
Last updated
27 Jun 2019
Data monitoring committee
Yes

Publications

  • Lochmuller H, Behin A, Caraco Y, Lau H, Mirabella M, Tournev I, Tarnopolsky M, Pogoryelova O, Woods C, Lai A, Shah J, Koutsoukos T, Skrinar A, Mansbach H, Kakkis E, Mozaffar T. A phase 3 randomized study evaluating sialic acid extended-release for GNE myopathy. Neurology. 2019 Apr 30;92(18):e2109-e2117. doi: 10.1212/WNL.0000000000006932. Epub 2019 Jan 25.

    PubMed 31036580
  • Tandon PK, Kakkis ED. The multi-domain responder index: a novel analysis tool to capture a broader assessment of clinical benefit in heterogeneous complex rare diseases. Orphanet J Rare Dis. 2021 Apr 19;16(1):183. doi: 10.1186/s13023-021-01805-5.

    PubMed 33874971

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing aceneuramic acid extended-release (Ace-ER) in people with Hereditary Inclusion Body Myopathy and Distal Myopathy With Rimmed Vacuoles, run by Ultragenyx Pharmaceutical Inc at 13 sites in 7 countries.

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

Who may be eligible to take part?

The sponsor lists 8 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 27 Jun 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 13 sites in United States, Italy, France, Bulgaria, Canada and 2 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

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

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 9 Jul 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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

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

What does the primary outcome measure?

Change From Baseline in UEC Score (Total Force in kg) at Week 48 (time frame: Baseline, Week 48). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02377921, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

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

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Jun 2019.

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