A Phase I/II, Open Label, Escalating Dose, Pilot Study to Assess Effect, Safety, Tolerability and PK of Multiple SC Doses of Drisapersen in Patients With Duchenne Muscular Dystrophy and to Assess the Potential for IV Dosing as an Alternative Route of Administration

November 4, 2016 updated by: BioMarin Pharmaceutical

A Phase I/II, Open Label, Escalating Dose, Pilot Study to Assess the Effect, Safety, Tolerability and Pharmacokinetics of Multiple Subcutaneous Doses of Drisapersen in Patients With Duchenne Muscular Dystrophy and to Assess the Potential for Intravenous Dosing as an Alternative Route of Administration

The purpose of the extension phase of this study is to determine whether Drisapersen is effective in the treatment of boys with Duchenne muscular dystrophy resulting from a mutation thought to be corrected by exon 51 skipping.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
12

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

5 years to 16 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Boys aged between 5 and 16 years inclusive.
  • Duchenne muscular dystrophy resulting from a mutation correctable by treatment with PRO051.
  • Not ventilator dependent.
  • Life expectancy of at least six months.
  • No previous treatment with investigational medicinal treatment within six months prior to the study.
  • Willing and able to adhere to the study visit schedule and other protocol requirements.

Exclusion Criteria:

  • Aberrant RNA splicing and/or aberrant response to PRO051, detected by in vitro PRO051 assay during screening.
  • Known presence of dystrophin in 5% of fibers in a pre-study diagnostic muscle biopsy.
  • Severe muscle abnormalities defined as increased signal intensity in >50% of the tibialis anterior muscle at MRI.
  • FEV1 and/or FVC <60% of predicted.
  • Current or history of liver or renal disease.
  • Acute illness within 4 weeks prior to treatment (Day 1) which may interfere with the measurements.
  • Severe mental retardation which in the opinion of the investigator prohibits participation in this study.
  • Severe cardiac myopathy which in the opinion of the investigator prohibits participation in this study.
  • Need for mechanical ventilation.
  • Creatinine concentration above 1.5 times the upper limit of normal (age corrected).
  • Serum ASAT and/or ALAT concentration(s) which suggest hepatic impairment.
  • Use of anticoagulants, antithrombotics or antiplatelet agents.
  • Subject has donated blood less than 90 days before the start of the study.
  • Current or history of drug and/or alcohol abuse.
  • Participation in another trial with an investigational product.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Drisapersen
Extension phase of treatment. Intravenous dosing of drisapersen will be investigated as an alternative route of administration
Drug: Drisapersen
Subcutaneous and Intravenous
Other Names:
  • PRO051

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Acute phase: Safety data
Time Frame: 18 weeks
Summarized per dose group
18 weeks
Acute phase and Continued Treatment Phase : Pharmacokinetics measured by T1/2, Cmax, Ctrough, 7d, tmax, and volume of distribution and clearance
Time Frame: 18 weeks
Plasma concentration versus time profiles of PRO051 (GSK2402968)
18 weeks
Acute phase and Continued Treatment Phase : Safety as assessed by the collection of adverse events (AEs)
Time Frame: 72 weeks
Change from baseline and summarized values
72 weeks
Continued Treatment Phase :Safety as assessed by laboratory parameters
Time Frame: 72 weeks
Change from baseline and summarized values
72 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Acute phase: Production of exon skip 51 messenger Ribonucleic acid (mRNA)
Time Frame: 18 weeks
18 weeks
Acute phase: Presence of dystrophin expression
Time Frame: 18 weeks
18 weeks
Acute phase: Muscle function
Time Frame: 18 weeks
Timed tests and 6-minutes walk
18 weeks
Acute phase: Muscle strength
Time Frame: 18 weeks
Quantitative Muscle Testing [QMT]- Cooperative International Neuromuscular Research Group (CINRG) and Manual Muscle Testing [MMT]
18 weeks
Continued Treatment Phase: Exon skip efficiency
Time Frame: 72 weeks
72 weeks
Continued Treatment Phase Dystrophin expression in muscle biopsy
Time Frame: 72 weeks
72 weeks
Continued Treatment Phase: Muscle function
Time Frame: 300 weeks
Timed tests and 6-minutes walk
300 weeks
Continued Treatment Phase: Muscle strength
Time Frame: 300 weeks
Handheld myometry and spirometry
300 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
BioMarin Pharmaceutical

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: N Goemans, Dr., UZ Leuven

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
March 1, 2008

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 1, 2016

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 1, 2016

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 2, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 25, 2013

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 29, 2013

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 6, 2016

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 4, 2016

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 114673
  • 2007-004819-54 (EudraCT Number)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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