Duchenne Muscular DystrophyPhase 1/2NCT03333590
Gene Transfer Clinical Trial to Deliver rAAVrh74.MCK.GALGT2 for Duchenne Muscular Dystrophy
A Phase 1/2 study testing rAAVrh74.MCK.GALGT2 in people with Duchenne Muscular Dystrophy, run by Kevin Flanigan at 1 site in United States.
Trial summary
The proposed clinical trial study of rAAVrh74.MCK.GALGT2 for duchenne muscular dystrophy (DMD) patients. There will be a modified intravascular limb infusion (ILI) procedure that will be used to sequentially deliver vector to each whole lower limb of DMD subjects via a major lower limb artery. Read more about this study
- Who is it for?
- Ages 4 years and older, men only
- Conditions the study is for
- Duchenne Muscular Dystrophy
- What is being tested?
- rAAVrh74.MCK.GALGT2
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 2 participants
- Where
- 1 siteUnited States
- Study dates
- 6 Nov 2017to 31 Dec 2023
- Phase
- Phase 1/2
- 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 4 years and older
- Men only
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Ambulant patients age 4 years or older
- Confirmed mutations in the DMD gene using a clinical accepted technique that completely defines the mutation 1,2
- • Measurably impaired muscle function (defined as less than 80% of the predicted value for 100 MWT), but with sufficient muscle preservation to ensure assessment of muscle transfection based on clinical evaluation by the PI and expert colleagues. This degree of preservation will include:
- Ability to extend the knee fully against gravity
- Preserved ambulation with ability to walk ≥ 350 meters during the 6MWT
- A magnetic resonance image of the quadriceps showing preservation of sufficient muscle mass to permit transfection
Show all 9Show fewer
- Males of any ethnic group will be eligible
- Ability to cooperate with muscle testing
- Stable daily dose of corticosteroid therapy (including either prednisone, prednisolone, deflazacort or their generic forms) for 12 weeks prior to gene transfer
Who cannot join
- Active viral infection based on clinical observations
- The presence of a DMD mutation without weakness or loss of function
- Subject is amenable to or is currently being treated with eteplirsen
- Symptoms or signs of cardiomyopathy, including:
- Dyspnea on exertion, pedal edema, shortness of breath upon lying flat, or rales at the base of the lungs
- Echocardiogram with ejection fraction below 40%
Show all 13Show fewer
- Serological evidence of HIV infection, or Hepatitis B or C infection
- Diagnosis of (or ongoing treatment for) an autoimmune disease
- Persistent leukopenia or leukocytosis (WBC ≤ 3.5 K/µL or ≥ 20.0 K/µL) or an absolute neutrophil count < 1.5K/µL
- Concomitant illness or requirement for chronic drug treatment that in the opinion of the PI creates unnecessary risks for gene transfer
- Subjects with rAAVrh74 binding antibody titers ≥ 1:50 as determined by ELISA immunoassay
- Presence of circulating anti-Sda antibodies as determined by study approved laboratory
- Abnormal laboratory values in the clinically significant range, based upon normal values in the Nationwide Children's Hospital Laboratory
Trial locations and contacts
1 site in 1 country.
United States1 site
Nationwide Children's Hospital
Columbus, Ohio, 43205
About this study
Official title: Phase I/IIa Gene Transfer Clinical Trial for Duchenne Muscular Dystrophy Using rAAVrh74.MCK.GALGT2
The proposed clinical trial study of rAAVrh74.MCK.GALGT2 for duchenne muscular dystrophy (DMD) patients. There will be a modified intravascular limb infusion (ILI) procedure that will be used to sequentially deliver vector to each whole lower limb of DMD subjects via a major lower limb artery.
Read the detailed description
This is an open-label, dose escalation trial where the vector will be delivered via the femoral artery to the muscles of both legs of DMD subjects.
The primary objective of this study is the assessment of the safety of intravascular administration of rAAVrh74.MCK.GALGT2 to DMD patients. Safety endpoints will be assessed by changes in hematology, serum chemistry, urinalysis, immunologic response to rAAVrh74 and GALGT2, and reported history and observations of symptoms. Efficacy measures will be used as secondary outcome for this disorder including a combination of functional 6 minute walk test (6MWT) and direct muscle testing for strength (MVICT) of lower limb muscles.
Subjects will be evaluated at baseline, infusion visit (days 0-2), and return for follow up visits on days 7, 14, 30, 60, 90, and 180 and months 12, 18 and 24
- Conditions
- Duchenne Muscular Dystrophy
- Being tested
- rAAVrh74.MCK.GALGT2
- Keywords
- DMD, Duchenne Muscular Dystrophy
- Medical subject headings
- Muscular Dystrophy, Duchenne
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
rAAVrh74.MCK.GALGT2Biological
Adeno-associated virus serotype rh74 carrying the GALGT2 gene under the control of a MCK promoter (rAAVrh74.MCK.GALGT2) will be delivered one time to each of the lower limbs through the femoral artery using an intravascular limb infusion technique (ILI)
| Study group | Role | What they receive |
|---|---|---|
| Cohort 1 (Minimal Efficacious Dose) rAAVrh74.MCK.GALGT2 | Experimental | N = 3 [2.5 x E13 vg/kg per leg, delivered bilaterally (total 5.0 x E13 vg/kg)] Receives: Biological: rAAVrh74.MCK.GALGT2 |
| Cohort 2 (Dose Escalation) rAAVrh74.MCK.GALGT2 | Experimental | N=3 [5 x E13 vg/kg per leg, delivered bilaterally (total 1.0 x E14 vg/kg)] Receives: Biological: rAAVrh74.MCK.GALGT2 |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of Unanticipated Grade III or Higher Treatment-Related Toxicities
Measured: 2 years
Secondary outcomes (2)
Expression of GALGT2 as Demonstrated by Immunofluorescent Staining With Anti-CT Epitope Antibodies or WFA Lectin in Muscle Biopsy Sections at 120 Days Post Injection (Cohort 1) and 90 Days Post-injection (Cohort 2).
Percentage of fibers expressing GALGT2 in each biopsy sample.
Measured: Day 90 (Cohort 2) and Day 120 (Cohort 1)
GALGT2 Protein Expression Quantified by Western Blot and Assessed by Densitometry in Muscle Biopsy Tissue at 120 Days Post-injection (Cohort 1) and 90 Days Post-injection (Cohort 2)
Measured: Day 90 (Cohort 2) and Day 120 (Cohort 1)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 Nov 2017
- Study start6 Nov 2017
- Primary completion4 Nov 2020
- Study completion31 Dec 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (35)Papers the sponsor has linked to this study.
- Other trials for Duchenne Muscular DystrophyStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 1/2
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Single group
- Model description
- This is a dose escalation trial that will begin with the minimal efficacious dose as determined by preclinical studies and approved by the FDA. During the course of the trial, if safety is shown the dose will be escalated according to the clinical protocol.
- Masking
- None (open label)
- Enrolment
- 2 participants (actual)
Sponsor and investigators
- Lead sponsor
- Kevin Flanigan
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Kevin Flanigan, Nationwide Children's Hospital
- Investigators
- Kevin Flanigan, MD, Principal investigator, Nationwide Children's Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03333590
- Sponsor's protocol ID
- GALGT2 Gene Therapy for DMD
- Status last verified
- Feb 2025
- First submitted
- 1 Nov 2017
- Last updated
- 13 Mar 2025
- Results posted
- Yes, on ClinicalTrials.gov
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
Publications
Chicoine LG, Rodino-Klapac LR, Shao G, Xu R, Bremer WG, Camboni M, Golden B, Montgomery CL, Shontz K, Heller KN, Griffin DA, Lewis S, Coley BD, Walker CM, Clark KR, Sahenk Z, Mendell JR, Martin PT. Vascular delivery of rAAVrh74.MCK.GALGT2 to the gastrocnemius muscle of the rhesus macaque stimulates the expression of dystrophin and laminin alpha2 surrogates. Mol Ther. 2014 Apr;22(4):713-24. doi: 10.1038/mt.2013.246. Epub 2013 Oct 22.
PubMed 24145553Flanigan KM, Dunn DM, von Niederhausern A, Soltanzadeh P, Gappmaier E, Howard MT, Sampson JB, Mendell JR, Wall C, King WM, Pestronk A, Florence JM, Connolly AM, Mathews KD, Stephan CM, Laubenthal KS, Wong BL, Morehart PJ, Meyer A, Finkel RS, Bonnemann CG, Medne L, Day JW, Dalton JC, Margolis MK, Hinton VJ; United Dystrophinopathy Project Consortium; Weiss RB. Mutational spectrum of DMD mutations in dystrophinopathy patients: application of modern diagnostic techniques to a large cohort. Hum Mutat. 2009 Dec;30(12):1657-66. doi: 10.1002/humu.21114.
PubMed 19937601Flanigan KM, von Niederhausern A, Dunn DM, Alder J, Mendell JR, Weiss RB. Rapid direct sequence analysis of the dystrophin gene. Am J Hum Genet. 2003 Apr;72(4):931-9. doi: 10.1086/374176. Epub 2003 Mar 11.
PubMed 12632325Seinen JM, Hoekstra HJ. Isolated limb perfusion of soft tissue sarcomas: a comprehensive review of literature. Cancer Treat Rev. 2013 Oct;39(6):569-77. doi: 10.1016/j.ctrv.2012.10.005. Epub 2012 Dec 8.
PubMed 23232098Rodino-Klapac LR, Janssen PM, Montgomery CL, Coley BD, Chicoine LG, Clark KR, Mendell JR. A translational approach for limb vascular delivery of the micro-dystrophin gene without high volume or high pressure for treatment of Duchenne muscular dystrophy. J Transl Med. 2007 Sep 24;5:45. doi: 10.1186/1479-5876-5-45.
PubMed 17892583Rodino-Klapac LR, Montgomery CL, Bremer WG, Shontz KM, Malik V, Davis N, Sprinkle S, Campbell KJ, Sahenk Z, Clark KR, Walker CM, Mendell JR, Chicoine LG. Persistent expression of FLAG-tagged micro dystrophin in nonhuman primates following intramuscular and vascular delivery. Mol Ther. 2010 Jan;18(1):109-17. doi: 10.1038/mt.2009.254. Epub 2009 Nov 10.
PubMed 19904237Rodino-Klapac LR, Montgomery CL, Mendell JR, Chicoine LG. AAV-mediated gene therapy to the isolated limb in rhesus macaques. Methods Mol Biol. 2011;709:287-98. doi: 10.1007/978-1-61737-982-6_19.
PubMed 21194036Mendell JR, Shilling C, Leslie ND, Flanigan KM, al-Dahhak R, Gastier-Foster J, Kneile K, Dunn DM, Duval B, Aoyagi A, Hamil C, Mahmoud M, Roush K, Bird L, Rankin C, Lilly H, Street N, Chandrasekar R, Weiss RB. Evidence-based path to newborn screening for Duchenne muscular dystrophy. Ann Neurol. 2012 Mar;71(3):304-13. doi: 10.1002/ana.23528.
PubMed 22451200Brooke MH, Fenichel GM, Griggs RC, Mendell JR, Moxley R, Miller JP, Province MA. Clinical investigation in Duchenne dystrophy: 2. Determination of the "power" of therapeutic trials based on the natural history. Muscle Nerve. 1983 Feb;6(2):91-103. doi: 10.1002/mus.880060204.
PubMed 6343858Eagle M, Baudouin SV, Chandler C, Giddings DR, Bullock R, Bushby K. Survival in Duchenne muscular dystrophy: improvements in life expectancy since 1967 and the impact of home nocturnal ventilation. Neuromuscul Disord. 2002 Dec;12(10):926-9. doi: 10.1016/s0960-8966(02)00140-2.
PubMed 12467747Koenig M, Hoffman EP, Bertelson CJ, Monaco AP, Feener C, Kunkel LM. Complete cloning of the Duchenne muscular dystrophy (DMD) cDNA and preliminary genomic organization of the DMD gene in normal and affected individuals. Cell. 1987 Jul 31;50(3):509-17. doi: 10.1016/0092-8674(87)90504-6.
PubMed 3607877Bonilla E, Samitt CE, Miranda AF, Hays AP, Salviati G, DiMauro S, Kunkel LM, Hoffman EP, Rowland LP. Duchenne muscular dystrophy: deficiency of dystrophin at the muscle cell surface. Cell. 1988 Aug 12;54(4):447-52. doi: 10.1016/0092-8674(88)90065-7.
PubMed 3042151Oudet C, Hanauer A, Clemens P, Caskey T, Mandel JL. Two hot spots of recombination in the DMD gene correlate with the deletion prone regions. Hum Mol Genet. 1992 Nov;1(8):599-603. doi: 10.1093/hmg/1.8.599.
PubMed 1363782Beggs AH, Koenig M, Boyce FM, Kunkel LM. Detection of 98% of DMD/BMD gene deletions by polymerase chain reaction. Hum Genet. 1990 Nov;86(1):45-8. doi: 10.1007/BF00205170.
PubMed 2253937Chamberlain JS, Gibbs RA, Ranier JE, Nguyen PN, Caskey CT. Deletion screening of the Duchenne muscular dystrophy locus via multiplex DNA amplification. Nucleic Acids Res. 1988 Dec 9;16(23):11141-56. doi: 10.1093/nar/16.23.11141.
PubMed 3205741
Study at a glance
From the registry record, last updated by the sponsor on 13 Mar 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Phase I/IIa Gene Transfer Clinical Trial for Duchenne Muscular Dystrophy Using rAAVrh74.MCK.GALGT2
- ClinicalTrials.gov ID
- NCT03333590
- Acronym / sponsor ID
- GALGT2 Gene Therapy for DMD
- Conditions
- Duchenne Muscular Dystrophy
- Keywords
- DMD, Duchenne Muscular Dystrophy
- Phase
- Phase 1/2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 2 participants (actual)
- Lead sponsor
- Kevin FlaniganUniversity, hospital or other
- Study start
- 6 Nov 2017 (actual)
- Primary completion
- 4 Nov 2020 (actual)
- Study completion
- 31 Dec 2023 (actual)
- First posted
- 7 Nov 2017 (actual)
- Results
- Posted 25 Apr 2022
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The proposed clinical trial study of rAAVrh74.MCK.GALGT2 for duchenne muscular dystrophy (DMD) patients. There will be a modified intravascular limb infusion (ILI) procedure that will be used to sequentially deliver vector to each whole lower limb of DMD subjects via a major lower limb artery.
Detailed description
This is an open-label, dose escalation trial where the vector will be delivered via the femoral artery to the muscles of both legs of DMD subjects.
The primary objective of this study is the assessment of the safety of intravascular administration of rAAVrh74.MCK.GALGT2 to DMD patients. Safety endpoints will be assessed by changes in hematology, serum chemistry, urinalysis, immunologic response to rAAVrh74 and GALGT2, and reported history and observations of symptoms. Efficacy measures will be used as secondary outcome for this disorder including a combination of functional 6 minute walk test (6MWT) and direct muscle testing for strength (MVICT) of lower limb muscles.
Subjects will be evaluated at baseline, infusion visit (days 0-2), and return for follow up visits on days 7, 14, 30, 60, 90, and 180 and months 12, 18 and 24
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- This is a dose escalation trial that will begin with the minimal efficacious dose as determined by preclinical studies and approved by the FDA. During the course of the trial, if safety is shown the dose will be escalated according to the clinical protocol.
| Arm | Type | Receives |
|---|---|---|
| Cohort 1 (Minimal Efficacious Dose) rAAVrh74.MCK.GALGT2 | Experimental | Biological: rAAVrh74.MCK.GALGT2N = 3 [2.5 x E13 vg/kg per leg, delivered bilaterally (total 5.0 x E13 vg/kg)] |
| Cohort 2 (Dose Escalation) rAAVrh74.MCK.GALGT2 | Experimental | Biological: rAAVrh74.MCK.GALGT2N=3 [5 x E13 vg/kg per leg, delivered bilaterally (total 1.0 x E14 vg/kg)] |
Who may qualify
- Ages
- 4 years and older
- Sex
- Male only
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (9 listed)
- Ambulant patients age 4 years or older
- Confirmed mutations in the DMD gene using a clinical accepted technique that completely defines the mutation 1,2
- • Measurably impaired muscle function (defined as less than 80% of the predicted value for 100 MWT), but with sufficient muscle preservation to ensure assessment of muscle transfection based on clinical evaluation by the PI and expert colleagues. This degree of preservation will include:
- Males of any ethnic group will be eligible
- Ability to cooperate with muscle testing
Key exclusion criteria (13 listed)
- Active viral infection based on clinical observations
- The presence of a DMD mutation without weakness or loss of function
- Subject is amenable to or is currently being treated with eteplirsen
- Symptoms or signs of cardiomyopathy, including:
- Serological evidence of HIV infection, or Hepatitis B or C infection
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| rAAVrh74.MCK.GALGT2Adeno-associated virus serotype rh74 carrying the GALGT2 gene under the control of a MCK promoter (rAAVrh74.MCK.GALGT2) will be delivered one time to each of the lower limbs through the femoral artery using an intravascular limb infusion technique (ILI) | Biological | Cohort 1 (Minimal Efficacious Dose) rAAVrh74.MCK.GALGT2, Cohort 2 (Dose Escalation) rAAVrh74.MCK.GALGT2 |
Primary outcome
Number of Unanticipated Grade III or Higher Treatment-Related Toxicities
Time frame: 2 years
2 secondary outcomes
Expression of GALGT2 as Demonstrated by Immunofluorescent Staining With Anti-CT Epitope Antibodies or WFA Lectin in Muscle Biopsy Sections at 120 Days Post Injection (Cohort 1) and 90 Days Post-injection (Cohort 2).
Time frame: Day 90 (Cohort 2) and Day 120 (Cohort 1)
GALGT2 Protein Expression Quantified by Western Blot and Assessed by Densitometry in Muscle Biopsy Tissue at 120 Days Post-injection (Cohort 1) and 90 Days Post-injection (Cohort 2)
Time frame: Day 90 (Cohort 2) and Day 120 (Cohort 1)
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Mar 2025.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 24145553Chicoine LG, Rodino-Klapac LR, Shao G, Xu R, Bremer WG, Camboni M, Golden B, Montgomery CL, Shontz K, Heller KN, Griffin DA, Lewis S, Coley BD, Walker CM, Clark KR, Sahenk Z, Mendell JR, Martin PT. Vascular delivery of rAAVrh74.MCK.GALGT2 to the gastrocnemius muscle of the rhesus macaque stimulates the expression of dystrophin and laminin alpha2 surrogates. Mol Ther. 2014 Apr;22(4):713-24. doi: 10.1038/mt.2013.246. Epub 2013 Oct 22.
- Background: PubMed 19937601Flanigan KM, Dunn DM, von Niederhausern A, Soltanzadeh P, Gappmaier E, Howard MT, Sampson JB, Mendell JR, Wall C, King WM, Pestronk A, Florence JM, Connolly AM, Mathews KD, Stephan CM, Laubenthal KS, Wong BL, Morehart PJ, Meyer A, Finkel RS, Bonnemann CG, Medne L, Day JW, Dalton JC, Margolis MK, Hinton VJ; United Dystrophinopathy Project Consortium; Weiss RB. Mutational spectrum of DMD mutations in dystrophinopathy patients: application of modern diagnostic techniques to a large cohort. Hum Mutat. 2009 Dec;30(12):1657-66. doi: 10.1002/humu.21114.
- Background: PubMed 12632325Flanigan KM, von Niederhausern A, Dunn DM, Alder J, Mendell JR, Weiss RB. Rapid direct sequence analysis of the dystrophin gene. Am J Hum Genet. 2003 Apr;72(4):931-9. doi: 10.1086/374176. Epub 2003 Mar 11.
- Background: PubMed 23232098Seinen JM, Hoekstra HJ. Isolated limb perfusion of soft tissue sarcomas: a comprehensive review of literature. Cancer Treat Rev. 2013 Oct;39(6):569-77. doi: 10.1016/j.ctrv.2012.10.005. Epub 2012 Dec 8.
- Background: PubMed 17892583Rodino-Klapac LR, Janssen PM, Montgomery CL, Coley BD, Chicoine LG, Clark KR, Mendell JR. A translational approach for limb vascular delivery of the micro-dystrophin gene without high volume or high pressure for treatment of Duchenne muscular dystrophy. J Transl Med. 2007 Sep 24;5:45. doi: 10.1186/1479-5876-5-45.
- Background: PubMed 19904237Rodino-Klapac LR, Montgomery CL, Bremer WG, Shontz KM, Malik V, Davis N, Sprinkle S, Campbell KJ, Sahenk Z, Clark KR, Walker CM, Mendell JR, Chicoine LG. Persistent expression of FLAG-tagged micro dystrophin in nonhuman primates following intramuscular and vascular delivery. Mol Ther. 2010 Jan;18(1):109-17. doi: 10.1038/mt.2009.254. Epub 2009 Nov 10.
- Background: PubMed 21194036Rodino-Klapac LR, Montgomery CL, Mendell JR, Chicoine LG. AAV-mediated gene therapy to the isolated limb in rhesus macaques. Methods Mol Biol. 2011;709:287-98. doi: 10.1007/978-1-61737-982-6_19.
- Background: PubMed 22451200Mendell JR, Shilling C, Leslie ND, Flanigan KM, al-Dahhak R, Gastier-Foster J, Kneile K, Dunn DM, Duval B, Aoyagi A, Hamil C, Mahmoud M, Roush K, Bird L, Rankin C, Lilly H, Street N, Chandrasekar R, Weiss RB. Evidence-based path to newborn screening for Duchenne muscular dystrophy. Ann Neurol. 2012 Mar;71(3):304-13. doi: 10.1002/ana.23528.
- Background: PubMed 6343858Brooke MH, Fenichel GM, Griggs RC, Mendell JR, Moxley R, Miller JP, Province MA. Clinical investigation in Duchenne dystrophy: 2. Determination of the "power" of therapeutic trials based on the natural history. Muscle Nerve. 1983 Feb;6(2):91-103. doi: 10.1002/mus.880060204.
- Background: PubMed 12467747Eagle M, Baudouin SV, Chandler C, Giddings DR, Bullock R, Bushby K. Survival in Duchenne muscular dystrophy: improvements in life expectancy since 1967 and the impact of home nocturnal ventilation. Neuromuscul Disord. 2002 Dec;12(10):926-9. doi: 10.1016/s0960-8966(02)00140-2.
- Background: PubMed 3607877Koenig M, Hoffman EP, Bertelson CJ, Monaco AP, Feener C, Kunkel LM. Complete cloning of the Duchenne muscular dystrophy (DMD) cDNA and preliminary genomic organization of the DMD gene in normal and affected individuals. Cell. 1987 Jul 31;50(3):509-17. doi: 10.1016/0092-8674(87)90504-6.
- Background: PubMed 3042151Bonilla E, Samitt CE, Miranda AF, Hays AP, Salviati G, DiMauro S, Kunkel LM, Hoffman EP, Rowland LP. Duchenne muscular dystrophy: deficiency of dystrophin at the muscle cell surface. Cell. 1988 Aug 12;54(4):447-52. doi: 10.1016/0092-8674(88)90065-7.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Kevin Flanigan, MD principal investigator
Nationwide Children's Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1/2 study testing rAAVrh74.MCK.GALGT2 in people with Duchenne Muscular Dystrophy, run by Kevin Flanigan at 1 site in United States.
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 9 inclusion and 13 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 13 Mar 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this combined phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
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 25 Apr 2022). 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?
Number of Unanticipated Grade III or Higher Treatment-Related Toxicities (time frame: 2 years). 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 NCT03333590, which also lists 35 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 13 Mar 2025.