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ID01665326

Determination of Cross-Reactive Immunological Material (CRIM) Status and Longitudinal Follow-up of Individuals With Pompe Disease

Led by Duke University · Updated on 2026-04-08

400

Participants Needed

1

Research Sites

52 weeks

Total Duration

On this page

Sponsors

D

Duke University

Lead Sponsor

G

Genzyme, a Sanofi Company

Collaborating Sponsor

AI-Summary

What this Trial Is About

Infantile-onset Pompe disease is a rare inherited condition caused by a deficiency of the enzyme acid alpha-glucosidase (GAA), leading to harmful glycogen buildup, especially in the heart and muscles. This research aims to understand the natural history of Pompe disease and how patients respond to enzyme replacement therapy (ERT) with alglucosidase alfa (Lumizyme/Myozyme), along with immune responses that may affect treatment outcomes. The study also examines the role of Cross-Reactive Immunological Material (CRIM) status, which influences how well patients tolerate ERT, and the impact of immunosuppressive therapy on antibody development. Participants diagnosed with Infantile Pompe disease will be followed over time in this longitudinal observational study. Researchers will collect and review medical records regularly, focusing on diagnosis, clinical signs, laboratory results, and response to treatments, including ERT and immune tolerance induction. The study aims to correlate CRIM status with gene variants causing Pompe disease and to explore how immune responses affect treatment effectiveness and patient outcomes. During the study, participants' medical information will be monitored, including antibody testing and clinical assessments to track disease progression and treatment response. The main outcome measured is the clinical response to ERT with alglucosidase alfa over up to 18 years, along with the response to immune tolerance induction. This long-term follow-up helps researchers better understand treatment challenges and disease development in individuals with Pompe disease.

CONDITIONS

Brief Title

Determination of CRIM Status and Longitudinal Follow-up of Individuals With Pompe Disease

Who Can Participate

All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Confirmed diagnosis of infantile, atypical or juvenile onset Pompe disease
  • Must provide a written informed consent
Not Eligible

You will not qualify if you...

History of severe allergic reactions to study medication Currently pregnant or breastfeeding Recent participation in another clinical trial within the last 30 days Presence of uncontrolled medical conditions that could affect safety

AI-Screening

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

Long-term Monitoring

Duration - Up to 18 years

Participants with Infantile Pompe disease are followed over time to collect and review medical information regarding their response to enzyme replacement therapy (ERT) and immune tolerance induction (ITI).

Trial Site Locations

Total: 1 location

1

Duke University Medical Center

Durham, North Carolina, United States, 27710

Actively Recruiting

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Research Team

A

Ankit K Desai, MBBS

E

Eleanor Rodriguez-Rassi, MPH

How is the study designed?

Study Type

OBSERVATIONAL

Masking

N/A

Allocation

N/A

Model

N/A

Primary Purpose

N/A

Number of Arms

1

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Published Research Related To This Trial

The impact of antibodies on clinical outcomes in diseases treated with therapeutic protein: lessons learned from infantile Pompe disease.

Suhrad G Banugaria, Sean N Prater, Yiu-Ki Ng...

https://pubmed.ncbi.nlm.nih.gov/21637107

Successful immune tolerance induction to enzyme replacement therapy in CRIM-negative infantile Pompe disease.

Yoav H Messinger, Nancy J Mendelsohn, William Rhead...

https://pubmed.ncbi.nlm.nih.gov/22237443

CRIM-negative infantile Pompe disease: characterization of immune responses in patients treated with ERT monotherapy.

Kathryn L Berrier, Zoheb B Kazi, Sean N Prater...

https://pubmed.ncbi.nlm.nih.gov/25741864

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.

Suhrad G Banugaria, Sean N Prater, Trusha T Patel...

https://pubmed.ncbi.nlm.nih.gov/23825616

An immune tolerance approach using transient low-dose methotrexate in the ERT-naïve setting of patients treated with a therapeutic protein: experience in infantile-onset Pompe disease.

Zoheb B Kazi, Ankit K Desai, R Bradley Troxler...

https://pubmed.ncbi.nlm.nih.gov/30214072

High dose IVIG successfully reduces high rhGAA IgG antibody titers in a CRIM-negative infantile Pompe disease patient.

Mugdha Rairikar, Zoheb B Kazi, Ankit Desai...

https://pubmed.ncbi.nlm.nih.gov/28648664

Sustained immune tolerance induction in enzyme replacement therapy-treated CRIM-negative patients with infantile Pompe disease.

Zoheb B Kazi, Ankit K Desai, Kathryn L Berrier...

https://pubmed.ncbi.nlm.nih.gov/28814660