Pompe DiseaseNCT01665326
Determination of CRIM Status and Longitudinal Follow-up of Individuals With Pompe Disease
An observational study of Pompe Disease, run by Duke University at 1 site in United States.
Trial summary
This is a longitudinal natural history study of Infantile Pompe disease. The investigators will regularly collect and review medical information regarding the diagnosis of Pompe disease, response to enzyme replacement (ERT) using alglucosidase alfa (Lumizyme/Myozyme) and response to immunosuppressive therapy in cases… Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Pompe Disease
- What is being tested?
- Observational
- How many people
- 400 participants
- Where
- 1 siteUnited States
- Study dates
- Sep 2009to Mar 2029
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
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 Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Study population: Study subjects will be babies/children/adults with a confirmed diagnosis of infantile-onset Pompe disease who are: 1. seen by the clinical staff of Duke Division of Medical Genetics, or 2. whose physician or parent contacts the Duke Division of Medical Genetics with the wish to participate in this CRIM research study.
Who may be able to join
- Confirmed diagnosis of infantile, atypical or juvenile onset Pompe disease
- Must provide a written informed consent
Who cannot join
None listed.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
United States1 site, 1 recruiting
- Recruiting
Duke University Medical Center
Durham, North Carolina, 27710
Ankit K Desai, MBBS, 919-613-6310, ankit.desai@duke.edu
Eleanor Rodriguez-Rassi, MPH, 919-613-1219, eleanor.rodriguezrassi@duke.edu
About this study
Official title: Determination of Cross-Reactive Immunological Material (CRIM) Status and Longitudinal Follow-up of Individuals With Pompe Disease
This is a longitudinal natural history study of Infantile Pompe disease. The investigators will regularly collect and review medical information regarding the diagnosis of Pompe disease, response to enzyme replacement (ERT) using alglucosidase alfa (Lumizyme/Myozyme) and response to immunosuppressive therapy in cases at risk for developing or those who have developed high and sustained antibodies to ERT. To follow the long-term outcomes, we will collect medical records including but not limited to the diagnosis, clinical parameters, assessments for clinical monitoring, and laboratory values including antibody testing results.
Read the detailed description
Infantile-onset Pompe disease is an inherited disorder caused by lack of or defect in the enzyme acid alpha-glucosidase (GAA). GAA enzyme deficiency causes glycogen to build up and damage cells throughout the body, especially in the heart and muscles, which is normally diagnosed within the first months of life. Current treatment for Pompe disease involves enzyme replacement therapy (ERT) using the drug alglucosidase alfa (Lumizyme/Myozyme), which provides a form of the GAA enzyme to replace the enzyme that is missing or not working properly in the patient's blood.
In this study, the investigators will learn about the patient's ability to tolerate ERT. Cross-Reactive Immunological Material (CRIM) is a measurement of natural GAA production and an important factor that affects how patients respond to ERT. Children who produce some natural GAA are classified as CRIM-positive, while children who do not produce any natural GAA are classified as CRIM-negative. Children who are CRIM-positive generally tolerate ERT well. But, children who are CRIM-negative, and some children classified as CRIM-positive, have a poor response to ERT due to complications from an immune response against the drug. Treatments are currently being developed to stop this immune response and prevent complications from ERT.
This is a longitudinal natural history study of Infantile Pompe disease. The investigators will regularly collect and review medical information regarding the diagnosis of Pompe disease, response to enzyme replacement (ERT) using alglucosidase alfa (Lumizyme/Myozyme) and response to immunosuppressive therapy in cases at risk for developing or those who have developed high and sustained antibodies to ERT.
The specific aims of this study are:
- To correlate CRIM status determined in a blood sample or cultured skin fibroblasts with GAA gene variants that are causing your child's Pompe disease.
- To explore the clinical treatment response and natural history of CRIM-positive and CRIM-negative Pompe disease patients with and without immune modulation.
- To investigate the role of immune response to treatment (IgG and IgE) including immune phenotyping.
- Conditions
- Pompe Disease
- Being tested
- Observational
- Keywords
- Pompe disease, Glycogen Storage Disease Type II, Acid Maltase Deficiency, CRIM Status, Acid Alpha-Glucosidase Deficiency, Alglucosidase alfa, Myozyme, Enzyme replacement therapy, Immune Tolerance Induction, Lumizyme, Immunomodulation, Anti-drug antibodies
- Medical subject headings
- Glycogen Storage Disease Type II
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ObservationalOther
This is a longitudinal study focused on the emerging natural history of Infantile Pompe disease, response to ERT using alglucosidase alfa (Myozyme) and response to Immune Tolerance Induction (ITI).
| Study group | Role | What they receive |
|---|---|---|
| Infantile Pompe disease | Individuals with a confirmed diagnosis of Infantile Pompe disease Receives: Other: Observational |
What is being measured
The primary outcome is the main question the study is designed to answer.
Clinical response to enzyme replacement therapy (ERT) using alglucosidase alfa (Myozyme)
Medical records will be tracked until the patient reaches the age of 18 years to follow clinical response to ERT. This will allow us to gain an understanding of CRIM status in relation to clinical outcomes and development for these subjects.
Measured: Up to 18 years
Secondary outcomes (1)
Response to Immune Tolerance Induction (ITI)
Medical records will be tracked until the patient reaches the age of 18 years to follow clinical response to Immune Tolerance Induction (ITI) for patients who are CRIM- or CRIM+ with high antibody titers. This will allow us to increase our understanding of the history of Pompe disease in relation to treatment interventions and the role of high antibody titers in terms of patient outcome in order to develop strategies to ameliorate the immune response and other factors that may affect response to ERT.
Measured: Up to 18 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 Aug 2012 (estimated)
- Study startSep 2009
- Primary completionMar 2028 (estimated)
- Study completionMar 2029 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (17)Papers the sponsor has linked to this study.
- Other trials for Pompe DiseaseStudies of the same condition, open and under way.
- More trials run by Duke UniversityThe sponsor's other registered studies.
- 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
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 400 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Duke University
- Sponsor type
- University, hospital or other
- Collaborators
- Genzyme, a Sanofi Company
- Responsible party
- Sponsor
- Investigators
- Priya S Kishnani, MD, Principal investigator, Duke University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01665326
- Sponsor's protocol ID
- Pro00001562
- Status last verified
- Apr 2026
- First submitted
- 13 Aug 2012
- Last updated
- 8 Apr 2026
- Results posted
- No
- Data monitoring committee
- Yes
Publications
Banugaria SG, Prater SN, Ng YK, Kobori JA, Finkel RS, Ladda RL, Chen YT, Rosenberg AS, Kishnani PS. The impact of antibodies on clinical outcomes in diseases treated with therapeutic protein: lessons learned from infantile Pompe disease. Genet Med. 2011 Aug;13(8):729-36. doi: 10.1097/GIM.0b013e3182174703.
PubMed 21637107Messinger YH, Mendelsohn NJ, Rhead W, Dimmock D, Hershkovitz E, Champion M, Jones SA, Olson R, White A, Wells C, Bali D, Case LE, Young SP, Rosenberg AS, Kishnani PS. Successful immune tolerance induction to enzyme replacement therapy in CRIM-negative infantile Pompe disease. Genet Med. 2012 Jan;14(1):135-42. doi: 10.1038/gim.2011.4.
PubMed 22237443Mendelsohn NJ, Messinger YH, Rosenberg AS, Kishnani PS. Elimination of antibodies to recombinant enzyme in Pompe's disease. N Engl J Med. 2009 Jan 8;360(2):194-5. doi: 10.1056/NEJMc0806809. No abstract available.
PubMed 19129538Berrier KL, Kazi ZB, Prater SN, Bali DS, Goldstein J, Stefanescu MC, Rehder CW, Botha EG, Ellaway C, Bhattacharya K, Tylki-Szymanska A, Karabul N, Rosenberg AS, Kishnani PS. CRIM-negative infantile Pompe disease: characterization of immune responses in patients treated with ERT monotherapy. Genet Med. 2015 Nov;17(11):912-8. doi: 10.1038/gim.2015.6. Epub 2015 Mar 5.
PubMed 25741864Banugaria SG, Prater SN, Patel TT, Dearmey SM, Milleson C, Sheets KB, Bali DS, Rehder CW, Raiman JA, Wang RA, Labarthe F, Charrow J, Harmatz P, Chakraborty P, Rosenberg AS, Kishnani PS. Algorithm for the early diagnosis and treatment of patients with cross reactive immunologic material-negative classic infantile pompe disease: a step towards improving the efficacy of ERT. PLoS One. 2013 Jun 25;8(6):e67052. doi: 10.1371/journal.pone.0067052. Print 2013.
PubMed 23825616Kazi ZB, Desai AK, Troxler RB, Kronn D, Packman S, Sabbadini M, Rizzo WB, Scherer K, Abdul-Rahman O, Tanpaiboon P, Nampoothiri S, Gupta N, Feigenbaum A, Niyazov DM, Sherry L, Segel R, McVie-Wylie A, Sung C, Joseph AM, Richards S, Kishnani PS. An immune tolerance approach using transient low-dose methotrexate in the ERT-naive setting of patients treated with a therapeutic protein: experience in infantile-onset Pompe disease. Genet Med. 2019 Apr;21(4):887-895. doi: 10.1038/s41436-018-0270-7. Epub 2018 Sep 14.
PubMed 30214072Desai AK, Walters CK, Cope HL, Kazi ZB, DeArmey SM, Kishnani PS. Enzyme replacement therapy with alglucosidase alfa in Pompe disease: Clinical experience with rate escalation. Mol Genet Metab. 2018 Feb;123(2):92-96. doi: 10.1016/j.ymgme.2017.12.435. Epub 2017 Dec 23.
PubMed 29289479McIntosh PT, Hobson-Webb LD, Kazi ZB, Prater SN, Banugaria SG, Austin S, Wang R, Enterline DS, Frush DP, Kishnani PS. Neuroimaging findings in infantile Pompe patients treated with enzyme replacement therapy. Mol Genet Metab. 2018 Feb;123(2):85-91. doi: 10.1016/j.ymgme.2017.10.005. Epub 2017 Oct 13.
PubMed 29050825Rairikar M, Kazi ZB, Desai A, Walters C, Rosenberg A, Kishnani PS. High dose IVIG successfully reduces high rhGAA IgG antibody titers in a CRIM-negative infantile Pompe disease patient. Mol Genet Metab. 2017 Sep;122(1-2):76-79. doi: 10.1016/j.ymgme.2017.05.006. Epub 2017 May 18.
PubMed 28648664Kazi ZB, Desai AK, Berrier KL, Troxler RB, Wang RY, Abdul-Rahman OA, Tanpaiboon P, Mendelsohn NJ, Herskovitz E, Kronn D, Inbar-Feigenberg M, Ward-Melver C, Polan M, Gupta P, Rosenberg AS, Kishnani PS. Sustained immune tolerance induction in enzyme replacement therapy-treated CRIM-negative patients with infantile Pompe disease. JCI Insight. 2017 Aug 17;2(16):e94328. doi: 10.1172/jci.insight.94328. eCollection 2017 Aug 17.
PubMed 28814660Spiridigliozzi GA, Keeling LA, Stefanescu M, Li C, Austin S, Kishnani PS. Cognitive and academic outcomes in long-term survivors of infantile-onset Pompe disease: A longitudinal follow-up. Mol Genet Metab. 2017 Jun;121(2):127-137. doi: 10.1016/j.ymgme.2017.04.014. Epub 2017 May 1.
PubMed 28495044Kazi ZB, Prater SN, Kobori JA, Viskochil D, Bailey C, Gera R, Stockton DW, McIntosh P, Rosenberg AS, Kishnani PS. Durable and sustained immune tolerance to ERT in Pompe disease with entrenched immune responses. JCI Insight. 2016 Jul 21;1(11):e86821. doi: 10.1172/jci.insight.86821.
PubMed 27493997Bali DS, Goldstein JL, Rehder C, Kazi ZB, Berrier KL, Dai J, Kishnani PS. Clinical Laboratory Experience of Blood CRIM Testing in Infantile Pompe Disease. Mol Genet Metab Rep. 2015 Dec 1;5:76-79. doi: 10.1016/j.ymgmr.2015.10.012.
PubMed 26693141Curelaru S, Desai AK, Fink D, Zehavi Y, Kishnani PS, Spiegel R. A favorable outcome in an infantile-onset Pompe patient with cross reactive immunological material (CRIM) negative disease with high dose enzyme replacement therapy and adjusted immunomodulation. Mol Genet Metab Rep. 2022 Jul 6;32:100893. doi: 10.1016/j.ymgmr.2022.100893. eCollection 2022 Sep.
PubMed 35813979Li C, Desai AK, Gupta P, Dempsey K, Bhambhani V, Hopkin RJ, Ficicioglu C, Tanpaiboon P, Craigen WJ, Rosenberg AS, Kishnani PS. Transforming the clinical outcome in CRIM-negative infantile Pompe disease identified via newborn screening: the benefits of early treatment with enzyme replacement therapy and immune tolerance induction. Genet Med. 2021 May;23(5):845-855. doi: 10.1038/s41436-020-01080-y. Epub 2021 Jan 25.
PubMed 33495531
Study at a glance
From the registry record, last updated by the sponsor on 8 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Determination of Cross-Reactive Immunological Material (CRIM) Status and Longitudinal Follow-up of Individuals With Pompe Disease
- ClinicalTrials.gov ID
- NCT01665326
- Acronym / sponsor ID
- Pro00001562
- Conditions
- Pompe Disease
- Keywords
- Pompe disease, Glycogen Storage Disease Type II, Acid Maltase Deficiency, CRIM Status, Acid Alpha-Glucosidase Deficiency, Alglucosidase alfa, Myozyme, Enzyme replacement therapy
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 400 participants (estimated)
- Lead sponsor
- Duke UniversityUniversity, hospital or other
- Collaborators
- Genzyme, a Sanofi Company
- Study start
- Sep 2009
- Primary completion
- Mar 2028 (estimated)
- Study completion
- Mar 2029 (estimated)
- First posted
- 15 Aug 2012 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is a longitudinal natural history study of Infantile Pompe disease. The investigators will regularly collect and review medical information regarding the diagnosis of Pompe disease, response to enzyme replacement (ERT) using alglucosidase alfa (Lumizyme/Myozyme) and response to immunosuppressive therapy in cases at risk for developing or those who have developed high and sustained antibodies to ERT. To follow the long-term outcomes, we will collect medical records including but not limited to the diagnosis, clinical parameters, assessments for clinical monitoring, and laboratory values including antibody testing results.
Detailed description
Infantile-onset Pompe disease is an inherited disorder caused by lack of or defect in the enzyme acid alpha-glucosidase (GAA). GAA enzyme deficiency causes glycogen to build up and damage cells throughout the body, especially in the heart and muscles, which is normally diagnosed within the first months of life. Current treatment for Pompe disease involves enzyme replacement therapy (ERT) using the drug alglucosidase alfa (Lumizyme/Myozyme), which provides a form of the GAA enzyme to replace the enzyme that is missing or not working properly in the patient's blood.
In this study, the investigators will learn about the patient's ability to tolerate ERT. Cross-Reactive Immunological Material (CRIM) is a measurement of natural GAA production and an important factor that affects how patients respond to ERT. Children who produce some natural GAA are classified as CRIM-positive, while children who do not produce any natural GAA are classified as CRIM-negative. Children who are CRIM-positive generally tolerate ERT well. But, children who are CRIM-negative, and some children classified as CRIM-positive, have a poor response to ERT due to complications from an immune response against the drug. Treatments are currently being developed to stop this immune response and prevent complications from ERT.
This is a longitudinal natural history study of Infantile Pompe disease. The investigators will regularly collect and review medical information regarding the diagnosis of Pompe disease, response to enzyme replacement (ERT) using alglucosidase alfa (Lumizyme/Myozyme) and response to immunosuppressive therapy in cases at risk for developing or those who have developed high and sustained antibodies to ERT.
The specific aims of this study are:
- To correlate CRIM status determined in a blood sample or cultured skin fibroblasts with GAA gene variants that are causing your child's Pompe disease.
- To explore the clinical treatment response and natural history of CRIM-positive and CRIM-negative Pompe disease patients with and without immune modulation.
- To investigate the role of immune response to treatment (IgG and IgE) including immune phenotyping.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Infantile Pompe disease | – | Other: ObservationalIndividuals with a confirmed diagnosis of Infantile Pompe disease |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
- Study population
- Study subjects will be babies/children/adults with a confirmed diagnosis of infantile-onset Pompe disease who are: 1. seen by the clinical staff of Duke Division of Medical Genetics, or 2. whose physician or parent contacts the Duke Division of Medical Genetics with the wish to participate in this CRIM research study.
Key inclusion criteria (2 listed)
- Confirmed diagnosis of infantile, atypical or juvenile onset Pompe disease
- Must provide a written informed consent
Key exclusion criteria (0 listed)
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 |
|---|---|---|
| ObservationalThis is a longitudinal study focused on the emerging natural history of Infantile Pompe disease, response to ERT using alglucosidase alfa (Myozyme) and response to Immune Tolerance Induction (ITI). | Other | Infantile Pompe disease |
Primary outcome
Clinical response to enzyme replacement therapy (ERT) using alglucosidase alfa (Myozyme)
Time frame: Up to 18 years
Medical records will be tracked until the patient reaches the age of 18 years to follow clinical response to ERT. This will allow us to gain an understanding of CRIM status in relation to clinical outcomes and development for these subjects.
1 secondary outcome
Response to Immune Tolerance Induction (ITI)
Time frame: Up to 18 years
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 8 Apr 2026.
- Results publication: PubMed 21637107Banugaria SG, Prater SN, Ng YK, Kobori JA, Finkel RS, Ladda RL, Chen YT, Rosenberg AS, Kishnani PS. The impact of antibodies on clinical outcomes in diseases treated with therapeutic protein: lessons learned from infantile Pompe disease. Genet Med. 2011 Aug;13(8):729-36. doi: 10.1097/GIM.0b013e3182174703.
- Results publication: PubMed 22237443Messinger YH, Mendelsohn NJ, Rhead W, Dimmock D, Hershkovitz E, Champion M, Jones SA, Olson R, White A, Wells C, Bali D, Case LE, Young SP, Rosenberg AS, Kishnani PS. Successful immune tolerance induction to enzyme replacement therapy in CRIM-negative infantile Pompe disease. Genet Med. 2012 Jan;14(1):135-42. doi: 10.1038/gim.2011.4.
- Results publication: PubMed 19129538Mendelsohn NJ, Messinger YH, Rosenberg AS, Kishnani PS. Elimination of antibodies to recombinant enzyme in Pompe's disease. N Engl J Med. 2009 Jan 8;360(2):194-5. doi: 10.1056/NEJMc0806809. No abstract available.
- Results publication: PubMed 25741864Berrier KL, Kazi ZB, Prater SN, Bali DS, Goldstein J, Stefanescu MC, Rehder CW, Botha EG, Ellaway C, Bhattacharya K, Tylki-Szymanska A, Karabul N, Rosenberg AS, Kishnani PS. CRIM-negative infantile Pompe disease: characterization of immune responses in patients treated with ERT monotherapy. Genet Med. 2015 Nov;17(11):912-8. doi: 10.1038/gim.2015.6. Epub 2015 Mar 5.
- Results publication: PubMed 23825616Banugaria SG, Prater SN, Patel TT, Dearmey SM, Milleson C, Sheets KB, Bali DS, Rehder CW, Raiman JA, Wang RA, Labarthe F, Charrow J, Harmatz P, Chakraborty P, Rosenberg AS, Kishnani PS. Algorithm for the early diagnosis and treatment of patients with cross reactive immunologic material-negative classic infantile pompe disease: a step towards improving the efficacy of ERT. PLoS One. 2013 Jun 25;8(6):e67052. doi: 10.1371/journal.pone.0067052. Print 2013.
- Results publication: PubMed 30214072Kazi ZB, Desai AK, Troxler RB, Kronn D, Packman S, Sabbadini M, Rizzo WB, Scherer K, Abdul-Rahman O, Tanpaiboon P, Nampoothiri S, Gupta N, Feigenbaum A, Niyazov DM, Sherry L, Segel R, McVie-Wylie A, Sung C, Joseph AM, Richards S, Kishnani PS. An immune tolerance approach using transient low-dose methotrexate in the ERT-naive setting of patients treated with a therapeutic protein: experience in infantile-onset Pompe disease. Genet Med. 2019 Apr;21(4):887-895. doi: 10.1038/s41436-018-0270-7. Epub 2018 Sep 14.
- Results publication: PubMed 29289479Desai AK, Walters CK, Cope HL, Kazi ZB, DeArmey SM, Kishnani PS. Enzyme replacement therapy with alglucosidase alfa in Pompe disease: Clinical experience with rate escalation. Mol Genet Metab. 2018 Feb;123(2):92-96. doi: 10.1016/j.ymgme.2017.12.435. Epub 2017 Dec 23.
- Results publication: PubMed 29050825McIntosh PT, Hobson-Webb LD, Kazi ZB, Prater SN, Banugaria SG, Austin S, Wang R, Enterline DS, Frush DP, Kishnani PS. Neuroimaging findings in infantile Pompe patients treated with enzyme replacement therapy. Mol Genet Metab. 2018 Feb;123(2):85-91. doi: 10.1016/j.ymgme.2017.10.005. Epub 2017 Oct 13.
- Results publication: PubMed 28648664Rairikar M, Kazi ZB, Desai A, Walters C, Rosenberg A, Kishnani PS. High dose IVIG successfully reduces high rhGAA IgG antibody titers in a CRIM-negative infantile Pompe disease patient. Mol Genet Metab. 2017 Sep;122(1-2):76-79. doi: 10.1016/j.ymgme.2017.05.006. Epub 2017 May 18.
- Results publication: PubMed 28814660Kazi ZB, Desai AK, Berrier KL, Troxler RB, Wang RY, Abdul-Rahman OA, Tanpaiboon P, Mendelsohn NJ, Herskovitz E, Kronn D, Inbar-Feigenberg M, Ward-Melver C, Polan M, Gupta P, Rosenberg AS, Kishnani PS. Sustained immune tolerance induction in enzyme replacement therapy-treated CRIM-negative patients with infantile Pompe disease. JCI Insight. 2017 Aug 17;2(16):e94328. doi: 10.1172/jci.insight.94328. eCollection 2017 Aug 17.
- Results publication: PubMed 28495044Spiridigliozzi GA, Keeling LA, Stefanescu M, Li C, Austin S, Kishnani PS. Cognitive and academic outcomes in long-term survivors of infantile-onset Pompe disease: A longitudinal follow-up. Mol Genet Metab. 2017 Jun;121(2):127-137. doi: 10.1016/j.ymgme.2017.04.014. Epub 2017 May 1.
- Results publication: PubMed 27493997Kazi ZB, Prater SN, Kobori JA, Viskochil D, Bailey C, Gera R, Stockton DW, McIntosh P, Rosenberg AS, Kishnani PS. Durable and sustained immune tolerance to ERT in Pompe disease with entrenched immune responses. JCI Insight. 2016 Jul 21;1(11):e86821. doi: 10.1172/jci.insight.86821.
Related trials for Pompe Disease
Active, not recruiting
Effects of Whole-body Electrical Muscle Stimulation Exercise on Adults With Neuromuscular Disease
Neuromuscular Diseases (NMD), Amyotrophic Lateral Sclerosis
Recruiting
Transcriptomic Analysis to Put an End to Misdiagnosis in Patients With Rare Muscle Diseases
Rare Genetic Muscle Diseases, Muscular Dystrophy, Duchenne
RecruitingObservational study
Pompe Disease Registry Protocol
Glycogen Storage Disease Type II, Pompe Disease
Not yet recruitingObservational study
MENA/Levant Epidemiological, Registry of Immunological & Clinical Traits (MERIT)
Antiphospholipid (aPL)-Positive, Rheumatic Arthritis
Not yet recruitingPhase 2
An Extension Study of S-606001 in Participants With Late-onset Pompe Disease (LOPD)
Pompe Disease
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.
Priya S Kishnani, MD principal investigator
Duke University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Pompe Disease, run by Duke University 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 2 inclusion and 0 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: looking for participants now, as of the sponsor's last update on 8 Apr 2026. 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.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Ankit K Desai, MBBS (919-613-6310, ankit.desai@duke.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Clinical response to enzyme replacement therapy (ERT) using alglucosidase alfa (Myozyme) (time frame: Up to 18 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 NCT01665326, which also lists 17 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 8 Apr 2026.