Orphanet Journal of Rare Diseases | A Qualitative Study on the Humanistic Burden of Caregivers for Individuals with GM1 and GM2 Gangliosidoses

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This study systematically explores the multifaceted impact of GM1 and GM2 gangliosidoses on family caregivers from the caregiver perspective, including psychological, physiological, economic, and social burdens. It provides qualitative data on caregiving responsibilities and resource needs, offering insights for future clinical support systems and policy development.

 

Literature Overview
The article titled 'Burden of caregiving of individuals with GM1 and GM2 gangliosidoses in the United States: a qualitative study', published in Orphanet Journal of Rare Diseases, reviews and summarizes the multidimensional burden experienced by family caregivers of patients with GM1 and GM2 gangliosidoses in the U.S., including persistent psychological stress, physical strain, economic burden, and social restrictions. It also highlights positive changes experienced by caregivers, such as increased family cohesion and shifts in life perspectives. The article further emphasizes the importance of resource support for caregiving.

Background Knowledge
GM1 and GM2 gangliosidoses are a group of rare autosomal recessive genetic disorders primarily caused by defects in β-galactosidase and β-hexosaminidase, leading to the accumulation of GM1 or GM2 gangliosides in lysosomes and subsequent progressive neurodegeneration. These diseases vary in severity across different age groups, with the infantile form being the most severe, while the adult form progresses more slowly but is accompanied by speech impairments, behavioral abnormalities, muscle weakness, and more. Currently, there are no disease-modifying treatments available, and only supportive care can be provided. The complexity of these diseases places a significant burden on family caregivers, who often lack professional support. This article explores the specific challenges and psychological burdens caregivers face across different patient age groups through qualitative interviews and focus groups, and highlights urgent needs for resource support, such as professional medical training, equipment access, psychological interventions, and increased public disease awareness. The study provides valuable insights for developing more comprehensive caregiving support policies and clinical management strategies.

 

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Research Methods and Procedures
This study employed a cross-sectional, non-interventional qualitative design, collecting subjective experiences from primary caregivers of individuals with GM1 and GM2 gangliosidoses in the U.S. through focus group interviews. Participants were divided into three groups caring for children (6–11 years), adolescents (12–17 years), and adults (≥18 years). Interview discussions were guided by a discussion guide developed by experienced qualitative researchers, covering multiple dimensions including caregiver roles, responsibilities, quality of life, psychological burden, and financial status. Data were analyzed using MAXQDA software to ensure conceptual saturation.

Key Findings and Perspectives

• Continued psychological burden (82.8%), physical strain (62.1%), and financial pressure (58.6%) were commonly reported by caregivers
• Over 90% of caregivers are responsible for daily living activities such as feeding, dressing, and bathing
• Over 80% of caregivers mentioned speech impairments in patients, and nearly 70% reported managing symptoms and medical care
• As the disease progresses, caregivers experience a role shift from parent/spouse to full-time caregiver, often without external support
• Most caregivers rely on rare disease family organizations (e.g., NTSAD and Cure GM1 Foundation) for information and resources, and express strong demand for professional medical support and disease-modifying therapies
• Despite the challenges, caregivers also reported positive outcomes such as increased family cohesion, community support, and changes in life perspectives

Implications and Future Directions
The study highlights the extensive burden experienced by caregivers of individuals with GM1 and GM2 gangliosidoses throughout the patient's lifespan, offering evidence to help clinicians optimize care plans, improve quality of life, and develop end-of-life care strategies. The findings also provide policy makers with reference points regarding resource allocation, caregiver financial support, and improvement of social service systems. Future research could explore supportive interventions for caregivers and the development of disease-specific therapies.

 

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Conclusion
This study reveals the profound impact of GM1 and GM2 gangliosidoses on family caregivers through qualitative interviews. Caregivers face significant stress across psychological, physical, financial, and social domains, especially when caregiving is continuous and external support is lacking. Nevertheless, many caregivers also reported positive personal growth, improved family relationships, and community support. The findings underscore the importance of enhancing healthcare professionals' awareness of these diseases, improving resource support for caregivers, and advancing the development of disease-modifying therapies to improve the quality of life for patients and their families.

 

Maria Belen Rodriguez, Ruth Pulikottil-Jacob, Karli Heuer, Robert Krupnick, and Daisy Ng-Mak. Burden of caregiving of individuals with GM1 and GM2 gangliosidoses in the United States: a qualitative study. Orphanet Journal of Rare Diseases.