scholarly journals Impact of Long-Term Enzyme Replacement Therapy on Glucosylsphingosine (Lyso-Gb1) Values in Patients with Type 1 Gaucher Disease: Statistical Models for Comparing Three Enzymatic Formulations

2021 ◽  
Vol 22 (14) ◽  
pp. 7699
Author(s):  
Tama Dinur ◽  
Ulrike Grittner ◽  
Shoshana Revel-Vilk ◽  
Michal Becker-Cohen ◽  
Majdolen Istaiti ◽  
...  
Keyword(s):  
Enzyme Replacement Therapy ◽  
Replacement Therapy ◽  
Gaucher Disease ◽  
Standard Of Care ◽  
Repeated Measurements ◽  
Substrate Reduction Therapy ◽  
Compound Heterozygous ◽  
Type I ◽  
Enzyme Replacement ◽  
The Impact

For three decades, enzyme replacement therapy (ERT), and more recently, substrate reduction therapy, have been the standard-of-care for type I Gaucher disease (GD1). Since 2012, three different ERTs have been available. No clinical trial or academic study has ever compared these ERTs beyond one year. Herein we compare the impact of the ERTs on repeated measurements of glucosylsphingosine (lyso-Gb1; the most sensitive and GD-specific biomarker). A total of 135 adult patients (77 (57%) female) with GD1, followed from July 2014 to March 2020 and treated with a single ERT (imiglucerase (n = 41, 30.4%), taliglucerase alfa (n = 21, 15.6%) and velaglucerase alfa (n = 73, 54.1%)), were included. Disease severity was defined by genotypes (mild: N370S (c.1226A>G) homozygous and N370S/R496H (c.1604G) compound heterozygous; severe: all other genotypes) and by the severity score index (SSI; mild: <7; severe: ≥7). Lyso-Gb1 testing was performed at Centogene™ on dry blood spot samples collected during routine visits. Patients treated with imiglucerase had higher lyso-Gb1 levels at different time points. A huge variation in lyso-Gb1 levels was noticeable both inter-individually and intra-individually for all three ERTs. A steeper and faster decrease of lyso-Gb1 levels was shown in velaglucerase alfa. Nevertheless, the differences between medications were not very large, and bigger numbers and more pretreatment data are required for more powerful conclusions.

RESPONSE TO ENZYME REPLACEMENT THERAPY IN PATIENTS WITH GAUCHER DISEASE TYPE I

2019 ◽  
Vol 22 (06) ◽  
pp. 103-117
Author(s):  
Mays Al-Tai ◽  
Deia Al-Asady ◽  
Rula Hamid
Keyword(s):  
Enzyme Replacement Therapy ◽  
Replacement Therapy ◽  
Gaucher Disease ◽  
Disease Type ◽  
Type I ◽  
Enzyme Replacement

Changing Patterns of Mortality in Gaucher Disease Prior to and Following the Advent of Enzyme Replacement Therapy.

Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 3799-3799
Author(s):  
Neal J. Weinreb ◽  
Robert E. Lee
Keyword(s):  
Cardiovascular Disease ◽  
Enzyme Replacement Therapy ◽  
Replacement Therapy ◽  
Cause Of Death ◽  
Gaucher Disease ◽  
Age At Death ◽  
Enzyme Replacement ◽  
Number Of Patients ◽  
Changing Patterns ◽  
The Impact

Abstract Enzyme replacement therapy (ERT) with exogenous glucosylceramide β-glucosidase (alglucerase, [Ceredase®] or imiglucerase, [Cerezyme®]) has been shown to improve anemia, thrombocytopenia, hepatosplenomegaly, bone symptoms and quality of life in patients with Gaucher disease. However, the impact of ERT on mortality has not been assessed since the inception of ERT in 1991. Data from the epoch prior to the availability of ERT were obtained from the University of Pittsburgh Gaucher Disease Registry. Data from the time period following the advent of ERT were obtained from the International Collaborative Gaucher Group (ICGG) Gaucher Registry and the Ceredase/Cerezyme pharmacovigilance database (Genzyme Corporation). Age of death was obtained for patients with reported Type 1 (non-neuronopathic) Gaucher disease. Only patients with a known cause of death were included in this analysis. Pre-ERT Era (R.E.L.) Post-ERT Era Number of patients 31 137 Treated with ERT No Yes Mean age at death (years) 53.2 55.6 Range of age at death (years) 3–85 0.2–89 Cause of death due to: n % n % • Gaucher disease 4 12.9% 1 0.7% • Leukemia 3 9.7% 7 5.1% • Lymphoma 1 3.2% 3 2.2% • Myeloma 3 9.7% 1 0.7% • Solid tumor 12 38.7% 17 12.4% • Hemorrhage 1 3.2% 14 10.2% • Thromboembolism 0 0.0% 4 2.9% • Other cardiovascular disease 2 6.5% 26 19.0% • Infectious disease 3 9.7% 6 10.9% • Other causes 2 6.5% 49 35.8% These descriptive data collected prior to the advent of ERT and following approval of ERT in 1991 raise intriguing questions about the changing pattern of mortality in Gaucher disease. Any direct comparison of these populations must be qualified by the possibility of detection bias or a cohort effect. Therefore, pending further information, it is difficult to attribute significance to the difference in mean age at death between the two populations. However, there have been shifts in the pattern of the causes of death. Most notably, deaths due to the primary manifestations of Gaucher disease and to hematologic cancers and solid tumors appear substantially less common in the post-ERT era whereas the proportion of deaths due to cardiovascular disease and other causes appears to be increasing. More accurate estimates of the patterns of mortality in Gaucher disease remain to be determined, particularly for the pre-ERT era. Additional studies of the changing patterns of mortality in Gaucher disease are ongoing.

Phase I/II, Nine Month Study Results of Enzyme Replacement Therapy with Gene Activated Human Glucocerebrosidase (GA-GCB) in Patients with Type I Gaucher Disease.

Blood ◽  
2005 ◽  
Vol 106 (11) ◽  
pp. 3882-3882
Author(s):  
Ari Zimran ◽  
Candida Fratazzi ◽  
Robert Mensah ◽  
Deborah Elstein
Keyword(s):  
Enzyme Replacement Therapy ◽  
Phase I ◽  
Replacement Therapy ◽  
Dose Escalation ◽  
Gaucher Disease ◽  
Clinical Activity ◽  
Target Cells ◽  
Type I ◽  
Enzyme Replacement ◽  
Study Results

Abstract AIMS: Evaluation of safety and clinical activity of Gene-Activated ® human glucocerebrosidase (GA-GCB) as a new intravenous enzyme replacement therapy (ERT) for patients with type I Gaucher disease participating in a 9 month, open-label Phase I/II clinical study. BACKGROUND: GA-GCB is human glucocerebrosidase (GCB) produced in a well-characterized, continuous human cell line using proprietary gene activation technology. GA-GCB has an identical amino acid sequence to the naturally occurring human enzyme and contains terminal mannose residues that target the enzyme to macrophages, the primary target cells in Gaucher disease. Nine month study results of GA-GCB treatment will be presented. METHODS: Twelve adult patients (7 females /5 males) with type I Gaucher disease with clinically significant anemia, thrombocytopenia, hepatomegaly and/or splenomegaly, were enrolled in a 9 month Phase I/II clinical trial. Patients received GA-GCB every other week for a total of 40 weeks (20 infusions). A staggered dose escalation of GA-GCB was performed in the first 3 patients: these patients received 15 U/kg at the first infusion, 30 U/kg at the second infusion, and then 60 U/kg IV every other week for a total of 20 IV infusions. The remaining 9 patients received 60 U/kg beginning with their first dose. Anti-GA-GCB antibodies were tested in all patients during the 9 months of treatment. All patients were routinely evaluated for hemoglobin, platelets, liver and spleen volumes, infusion reactions and adverse events. In addition, serum samples were analyzed for disease biomarkers: chitotriosidase and CCL18. RESULTS: Eleven of the 12 patients who were enrolled in the trial have been treated for nine months. One patient withdrew consent after three injections for reasons not related to treatment. Dose escalation from 15 U/kg to 60 U/kg was well tolerated in the first three patients. The remaining patients received 60 U/kg every other week throughout the course of the study. Anti-GA-GCB antibody test results were negative for all patients. Mean hemoglobin and platelet values, below the normal range at baseline, improved after 9 months of GA-GCB treatment to levels consistent with the therapeutic goals for ERT in Gaucher disease (Seminars in Hematology 2004). Analysis of the liver and spleen volumes decreased following 9 months of treatment. In addition, serum chitotriosidase and CCL18 levels decreased over the 9 months of GA-GCB treatment. CONCLUSION: ERT with GA-GCB was well tolerated and demonstrated clinical activity in well-established clinical markers in patients with type 1 Gaucher disease when administered IV every other week at 60 U/kg over 9 months. Results suggest that GA-GCB holds promise as a new therapeutic option for ERT in Gaucher disease.

Ghrelin, leptin and adiponectin levels in Gaucher disease type I patients on enzyme replacement therapy

2015 ◽  
Vol 34 (4) ◽  
pp. 727-731 ◽  
Author(s):  
Divair Doneda ◽  
André L. Lopes ◽  
Bruno C. Teixeira ◽  
Suzana D. Mittelstadt ◽  
Cileide C. Moulin ◽  
...  
Keyword(s):  
Enzyme Replacement Therapy ◽  
Replacement Therapy ◽  
Gaucher Disease ◽  
Disease Type ◽  
Type I ◽  
Enzyme Replacement
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