Gaucher disease: Getting ahead of delays in diagnosis and management

What is the disease burden of Gaucher disease? 
Gaucher disease is a rare, progressive, and life-altering condition that can damage visceral, hematologic, skeletal, and neurologic health.^1,2

What are the challenges in diagnosis and management of Gaucher disease? 
The heterogeneity and rarity of Gaucher disease can cause extensive diagnostic delays and difficulty with accurately classifying disease subtypes.³

Why is monitoring of key importance in Gaucher disease? 
Gaucher disease can progress unnoticed, as serious, debilitating symptoms—such as skeletal complication or neurologic decline—may manifest silently.^4-6

How is Gaucher disease progression managed? 
Since Gaucher disease is a multisystemic disorder, an individualized approach is required for optimal management.⁷

Understanding Gaucher disease

Gaucher disease is marked by extreme diversity in genotype, phenotype, age of onset, and disease severity, as well as an unpredictable, progressive disease course. Signs, symptoms, and clinical course may differ even among individuals with the same genotype and within the same family.⁸

Pathophysiology

Gaucher disease is a rare inherited lysosomal storage disorder with multiple subtypes, caused by pathogenic variants in the GBA1 gene encoding acid β-glucosidase. Reduced activity of β-glucosidase interrupts the normal breakdown of glucosylceramide (GL-1) in the cells. This leads to increased lysosomal concentrations of GL-1 and its deacylated form, glucosylsphingosine (lyso-GL-1). GL-1 accumulates in cells of the monocyte/macrophage lineage, resulting in progressive multiorgan dysfunction.^1,6,9

Gaucher disease has an autosomal recessive inheritance pattern¹⁰

Gaucher-unbranded_Inheritance-chart Mobile

Signs and symptoms of Gaucher disease

Gaucher disease can damage visceral, hematologic, skeletal, and in certain patients, neurological health.²

Symptoms may include^1,5,6,11-15:

Gaucher-unbranded_Symptom_glass-man_mobile

Prevalence varies widely between symptoms^4,12,16:

>90% of patients present with splenomegaly
Approximately 60% to 80% of patients present with hepatomegaly
Approximately 60% to 90% of patients experience thrombocytopenia
Radiographic evidence of bone disease is present in 82% of patients; however, about two-thirds of patients do not report bone pain during examination
Approximately <10% of patients experience neurologic symptoms

These symptoms are diverse, unpredictable, and variable^2,15:

Onset may occur at any age
Patients may appear asymptomatic or present with any number of symptoms
The nature and severity of some symptoms may fluctuate as the disease progresses

Types of Gaucher disease

Gaucher disease is classified into 3 subtypes, largely based on 2 key factors¹³:

The presence or absence of neurologic symptoms
If present, the age of onset/rate at which these neurological symptoms progress

Type 1^13,17,18 (non-neuronopathic)	Type 3^11,12,19-21 (chronic neuronopathic)	Type 2^13,20^* (acute neuronopathic)
Most common subtype in the US (1 in 40,000) Much higher prevalence in the Ashkenazi Jewish population (1 in 500 to 1 in 1000) Symptom onset in childhood or adulthood	More common than type 2 Early onset of severe visceral/hematologic disease and growth delay Neurologic symptoms accompany or follow, with ~50% of patients displaying manifestations by 2 years of age	Least common subtype Severe, infantile onset, with rapidly progressing visceral and neurological symptoms Patients are affected in infancy and have a short life expectancy of 2 to 3 years of age

*There are currently no approved treatments for Gaucher disease type 2.^1,22

Gaucher disease types 1 and 3 share many symptoms, leading to reclassification in some patients^2,4,13,23

Neurologic symptoms are key to identifying Gaucher disease type 3

Like Gaucher disease type 1, Gaucher disease type 3 often presents with initial symptoms in childhood. Neurologic manifestations are what set type 3 apart from type 1, making them crucial clues for proper disease classification.^5,8,11,24

Central nervous system (CNS) symptoms may appear years after visceral symptoms are present
Early manifestations can be subtle
Neurologic manifestations are heterogeneous and can range from mild to severe

Gaze palsy is a pivotal sign of neuronopathic Gaucher disease. Often, the first observed manifestation of Gaucher disease type 3—gaze palsy—may be an isolated finding, coexist with other neurologic abnormalities, or be absent.^13,15,23,24

Other neurologic symptoms patients with Gaucher disease type 3 may experience include ataxia, cognitive impairment (relative sparing speech and language), dysarthria, dysphagia/stridor, hyperreflexia, oppositional defiant abnormalities, partial or complex seizures, and progressive myoclonic epilepsy.¹³

Debilitating and sometimes silent skeletal manifestations can be irreversible⁴

In most patients with Gaucher disease, various bone manifestations may progress silently for years and can be irreversible. These may include⁶:

Chronic or acute bone pain
Bone crisis
Bone marrow infiltration
Bone marrow reduction
Osteonecrosis
Pathologic fracture
Growth delay
Erlenmeyer flask deformity

Proper classification and ongoing monitoring of Gaucher disease enables fully informed and proactive patient care.^5,11,19

Delayed treatment increases the risk of irreversible severe morbidities⁶

If left untreated, Gaucher disease types 1 and 3 can result in progressive visceral, hematologic, and skeletal manifestations. Over time, patients may experience^{2,6,11,12,24-27}:

Early detection, intervention, and management of Gaucher disease are key to helping prevent progressive visceral and skeletal damage.^4,25,28

What is the impact of Gaucher disease type 3 on patients and their families?

The neurological manifestations of Gaucher disease type 3 severely impact patient lives, inhibiting the ability to socialize and interact with peers, limiting capabilities at school or work, and in severe cases, causing early mortality.^29,30

Impairment of motor skills may inhibit patients’ ability to²⁹:

Cognitive impairment may inhibit patients’ ability to²⁹:

Over time, patients may experience significant ataxia and dementia, reducing independence while increasing the emotional burden on both patients and their caregivers.²⁹

Gaucher disease is identified with a blood-based enzyme assay³¹

Diagnosis of Gaucher disease involves identifying β-glucosidase deficiency and/or GBA1 gene pathogenic variants that are biallelic (or affecting both alleles of a gene). Enzyme activity that indicates Gaucher disease can be detected through a blood test. Confirmation of Gaucher disease is also made by detecting pathogenic variants in the GBA1 gene.^13,31

In non-Ashkenazi Jewish patients presenting with these symptoms, consider Gaucher disease in your differential diagnosis once malignancy has been ruled out.³²

It is recommended to test for Gaucher disease as a first-line investigation in any patient of Ashkenazi Jewish heritage presenting with splenomegaly and thrombocytopenia.³²

This diagnostic algorithm may help you know when to test for Gaucher disease³²:

In patients of Ashkenazi Jewish heritage, the incidence of Gaucher disease type 1 is higher (1:800 to 1:850) than the incidence of hematologic malignancies (~1:2500).^20,32

Find Testing Locations

Proactive management and effective monitoring enables personalized supportive care⁷

Since Gaucher disease is an unpredictable, progressive condition marked by extreme diversity in genotype, phenotype, age of onset, and disease severity, it can be extremely challenging to manage. Management strategy should be based on an individualized approach to care, as uncontrolled progression or the emergence of skeletal or neurological manifestations could necessitate changes in care regimens.^{5,7,8,28,33,34}

What treatment options are available for Gaucher disease?

Treatment options for Gaucher disease address the visceral, hematologic, and skeletal manifestations of Gaucher disease type 1 and Gaucher disease type 3. There are currently no approved treatments for Gaucher disease type 2 or the central nervous system (CNS) manifestations of Gaucher disease type 3.^{1,17,22,35,36}

Depending on the type of Gaucher disease, there may be up to 2 treatment approaches available—enzyme replacement therapy (ERT) and substrate reduction therapy (SRT). While the goal of ERT and SRT is the same—to reduce the accumulation of excess glucosylceramide (GL-1)—they achieve this in differing ways.³⁷

	ERT^1,22,35	SRT^1,22,35
Mechanism of action	Supplies an analog of β-glucosidase, the enzyme needed to break down GL-1	Inhibits the enzyme glucosylceramide synthase (GCS) which slows down GL-1 production
Administration	Infusion	Oral capsule

Regardless of disease severity, it is important to start disease management as soon as possible.³⁷

Support for healthcare providers

Have a question or want additional information? A Sanofi representative is available to answer your disease- or product-related questions. Click the link below to complete a request.

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Downloadable resources

Symptoms and diagnosis

About Gaucher Disease

Patient Case Studies

Gaucher Registry

Understanding Unmanaged Gaucher Disease

Diagnostic Algorithm

Labs and Testing Flashcard

Managing Gaucher disease

Diagnose Gaucher Disease

Monitoring

Schedule of Assessments

For hematologist-oncologists/
orthopedists

Diagnose Gaucher Disease

Differentiate Gaucher Disease

Medical information

Sanofi’s Medical Information Department can provide information on diagnostic testing, pharmacovigilance/safety, and Gaucher disease.

Visit our Medical Information Website

Sanofimedicalinformation.com

Please call 8 AM until 6 PM EST, Monday through Friday:

1-800-745-4447, option 2 (toll-free)/1-617-768-9000, option 2

Support for your patients

Connected care throughout the journey

CareConnect Personalized Support Services is a free, voluntary, and confidential support program for eligible patients and families living with certain lysosomal storage disorders (LSDs) such as Gaucher disease.

Connected Education: Comprehensive disease education from diagnosis and beyond for individuals, families, and communities
Connected Team: Experts who connect the dots between specialists, insurance, and appointments for a less fragmented care experience
Connected Experience: Programs designed to support patients by connecting them with experts and the community to navigate life transitions and manage treatment

If affording treatment is an issue, CareConnect may be able to help eligible patients access financial assistance. To learn more about our range of support offerings, connect with us at careconnectpss.com/hcp, call 1-800-745-4447, option 3, or email info@careconnectpss.com.

Patient website

Sanofi is committed to providing you with materials to help educate your patients about lysosomal storage disorders. A variety of patient educational materials are available to help patients understand Gaucher disease, its symptoms, and management.

Visit Patient Website

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Gaucher disease in bone: from pathophysiology to practice. J Bone Miner Res. 2019;34(6):996-1013. 7. Pastores GM, Weinreb NJ, Aerts H, et al. Therapeutic goals in the treatment of Gaucher disease. Semin Hematol. 2004;41(suppl 5):4-14. 8. Daykin EC, Ryan E, Sidransky E. Diagnosing neuronopathic Gaucher disease: new considerations and challenges in assigning Gaucher phenotypes. Mol Genet Metab. 2021;132(2):49-58. 9. Giraldo P, Pérez-López J, Núñez R, et al. Patients with type 1 Gaucher disease in Spain: a cross-sectional evaluation of health status. Blood Cells Mol Dis. 2016;56(1):23-30. 10. National Gaucher Foundation. Gaucher Disease Inheritance and Genetics. Accessed May 29, 2026. https://www.gaucherdisease.org/about-gaucher-disease/genetics/ 11. Gary SE, Ryan E, Steward AM, et al. Recent advances in the diagnosis and management of Gaucher disease. Expert Rev Endocrinol Metab. 2018;13(2):107-118. 12. Stirnemann J, Belmatoug N, Camou F, et al. A review of Gaucher disease pathophysiology, clinical presentation and treatments. Int J Mol Sci. 2017;18(2):441. 13. Schiffmann R, Sevigny J, Rolfs A, et al. The definition of neuronopathic Gaucher disease. J Inherit Metab Dis. 2020;43(5):1056-1059. 14. Weinreb NJ, Charrow J, Andersson HC, et al. Effectiveness of enzyme replacement therapy in 1028 patients with type 1 Gaucher disease after 2 to 5 years of treatment: a report from the Gaucher Registry. Am J Med. 2002;113(2):112-119. 15. Mistry PK, Lopez G, Schiffmann R, Barton NW, Weinreb NJ, Sidransky E. Gaucher disease: progress and ongoing challenges. Mol Genet Metab. 2017;120(1-2):8-21. 16. Charrow J, Andersson HC, Kaplan P, et al. The Gaucher Registry: demographics and disease characteristics of 1698 patients with Gaucher disease. Arch Intern Med. 2000;160(18):2835-2843. 17. Rosenbloom BE, Weinreb NJ. Gaucher disease: a comprehensive review. Crit Rev Oncog. 2013;18(3):163-175. 18. National Human Genome Research Institute (NHGRI). Learning about Gaucher disease. Accessed May 29, 2026. https://www.genome.gov/Genetic-Disorders/Gaucher-Disease 19. El-Beshlawy A, Tylki-Szymańska A, Vellodi A, et al. Long-term hematological, visceral, and growth outcomes in children with Gaucher disease type 3 treated with imiglucerase in the International Collaborative Gaucher Group Gaucher Registry. Mol Genet Metab. 2017;120(1-2):47-56. 20. Nalysnyk L, Rotella P, Simeone JC, Hamed A, Weinreb N. Gaucher disease epidemiology and natural history: a comprehensive review of the literature. Hematology. 2017;22(2):65-73. 21. Tylki-Szymańska A, Vellodi A, El-Beshlawy A, Cole JA, Kolodny E. Neuronopathic Gaucher disease: demographic and clinical features of 131 patients enrolled in the International Collaborative Gaucher Group Neurological Outcomes Subregistry. J Inherit Metab Dis. 2010;33(4):339–346. 22. Schiffmann R, Cox TM, Dedieu JF, et al. Venglustat combined with imiglucerase for neurological disease in adults with Gaucher disease type 3: the LEAP trial. Brain. 2023;146(2):461-474. 23. El-Beshlawy A, Abdel-Azim K, Abdel-Salam A, et al. Egyptian Gaucher disease type 3 patients: a large cohort study spanning two decades. J Rare Dis. 2023;2(1):7. doi:10.1007/s44162-023-00011-0 24. Lu WL, Chien YH, Tsai FJ, et al. Changing clinical manifestations of Gaucher disease in Taiwan. Orphanet J Rare Dis. 2023;18(1):293. doi:10.1186/s13023-023-02895-z 25. Carubbia F, Cappellini MD, Fargion S, et al. Liver involvement in Gaucher disease: a practical review for the hepatologist and the gastroenterologist. Dig Liver Dis. 2020;52(4):368-373. 26. Kauli R, Zaizov R, Lazar L, et al. Delayed growth and puberty in patients with Gaucher disease type 1: natural history and effect of splenectomy and/or enzyme replacement therapy. Isr Med Assoc J. 2000;2(3):158-163. 27. Packman W, Crosbie TW, Riesner A, et al. Living with Gaucher disease: emotional health, psychosocial needs and concerns of individuals with Gaucher disease. Am J Med Genet A. 2010;152A(8):2002-2010. 28. Weinreb NJ, Goker-Alpan O, Kishnani PS, et al. The diagnosis and management of Gaucher disease in pediatric patients: where do we go from here? Mol Genet Metab. 2022;136(1):4-21. 29. Schiffmann R, Turnbull J, Krupnick R, et al. Gaucher disease type 3 from infancy through adulthood: a conceptual model of signs, symptoms, and impacts associated with ataxia and cognitive impairment. Orphanet J Rare Dis. 2025;20:171. 30. Hughes DA, Pastores GM. Gaucher Disease. 2000 Jul 27 [updated 2023 Dec 7]. In: Adam MP, Bick S, Mirzaa GM, Pagon RA, Pagon RA, Wallace SE, Amemiya A, editors. GeneReviews^® [Internet]. Seattle (WA): University of Washington, Seattle; 1993–2026. PMID: 20301446. 31. Grabowski GA, Petsko GA, Kolodny EH. Gaucher disease. In: Valle D, Beaudet AL, Vogelstein B, et al, eds. The Online Metabolic and Molecular Bases of Inherited Disease. New York, NY: McGraw-Hill. 32. Mistry PK, Cappellini MD, Lukina E, et al. Consensus Conference: a reappraisal of Gaucher disease—diagnosis and disease management algorithms. Am J Hematol. 2011;86(1):110-115. 33. Weinreb NJ, Aggio MC, Andersson HC, et al; International Collaborative Gaucher Group (ICGG). Gaucher disease type 1: revised recommendations on evaluations and monitoring for adult patients. Semin Hematol. 2004;41(Suppl 5):15-22. 34. Vellodi A, Tylki-Szymanska A, Davies EH, et al. Management of neuronopathic Gaucher disease: revised recommendations. J Inherit Metab Dis. 2009;32(5):660-664. 35. Lal TR, Sidransky E. The spectrum of neurological manifestations associated with Gaucher disease. Diseases. 2017;5(1):10. doi:10.3390/diseases5010010 36. Schiffmann R, Fitzgibbon EJ, et al. Randomized, controlled trial of miglustat in Gaucher’s disease type 3. Ann Neurol. 2008;64(5):514–522. 37. Mistry PK, Sadan S, Yang R, Yee J, Yang M. Consequences of diagnostic delays in type 1 Gaucher disease: the need for greater awareness among hematologists-oncologists and an opportunity for early diagnosis and intervention. Am J Hematol. 2007;82(8):697-701.

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MAT-US-2300473-v3.0-07/2026 Last Updated: July 2026.

Gaucher disease: Getting ahead of delays in diagnosis and management

Understanding Gaucher disease

Pathophysiology

Gaucher disease has an autosomal recessive inheritance pattern¹⁰