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“Patients with MPS have a complicated multi-organ disorder and need to be followed with accurate protocols by an expert multidisciplinary team”. – Dr. Rossella Parini

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MANAGEMENT GUIDELINES

MPS Specific

MPS I

Arn P, Whitley C, Wraith JE, et al. High rate of postoperative mortality in patients with mucopolysaccharidosis I: findings from the MPS I Registry. J Pediatr Surg. 2012;47(3):477-484. doi:10.1016/j.jpedsurg.2011.09.042. PubMed PMID: 22424341
Beck M, Arn P, Giugliani R, et al. The natural history of MPS I: global perspectives from the MPS I Registry. Genet Med. 2014;16(10):759-765. doi:10.1038/gim.2014.25. PubMed Central PMCID: PMC4189384
Cox-Brinkman J, Timmermans RG, Wijburg FA, et al. Home treatment with enzyme replacement therapy for mucopolysaccharidosis type I is feasible and safe. J Inherit Metab Dis. 2007;30(6):984. PubMed PMID: 17879143
de Ru MH, Boelens JJ, Das AM, et al. Enzyme replacement therapy and/or haematopoietic stem cell transplantation at diagnosis in patients with mucopolysaccharidosis type I: results of a European consensus procedure. Orphanet J Rare Dis. 2011;10;6:55. doi:10.1186/1750-1172-6-55. PubMed PMID: 21831279
Felice T, Murphy E, Mullen MJ, Elliott PM. Management of aortic stenosis in mucopolysaccharidosis type I. Int J Cardiol. 2014 Apr 1;172(3):e430-e431. doi:10.1016/j.ijcard.2013.12.233. PubMed PMID: 24502875
Fenzl CR, Teramoto K, Moshirfar M. Ocular manifestations and management recommendations of lysosomal storage disorders I: mucopolysaccharidoses. Clin Ophthalmol. 2015;9:1633-1644. doi:10.2147/OPTH.S78368. PubMed PMID: 26379420
Giugliani R, Federhen A, Muñoz Rojas MV, et al. [Enzyme replacement therapy for mucopolysaccharidoses I, II and VI: recommendations from a group of Brazilian F experts]. Rev Assoc Med Bras. 2010;56(3):271-277. PubMed PMID: 20676532
Langereis EJ, Borgo A, Crushell E, et al. Treatment of hip dysplasia in patients with mucopolysaccharidosis type I after haematopoietic stem cell transplantation: results of an international consensus procedure. Orphanet J Rare Dis. 2013;8:155. doi:10.1186/1750-1172-8-155. PubMed PMID: 24088413
Muenzer J, Wraith JE, Clarke LA; International Consensus Panel on Management and Treatment of Mucopolysaccharidosis I. Mucopolysaccharidosis I: management and treatment guidelines. Paediatrics. 2009;123(1):19-29. doi:10.1542/peds.2008-0416. PubMed PMID: 19117856
Pastores GM, Arn P, Beck M, et al. The MPS I registry: design, methodology and early findings of a global disease registry for monitoring patients with mucopolysaccharidosis type I. Mol Genet Metab. 2007;91(1):37-47. PubMed PMID: 17336562
Shapiro EG, Nestrasil I, Rudser K, et al. Neurocognition across the spectrum of mucopolysaccharidosis type I: Age, severity and treatment. Mol Genet Metab. 2015;116(1-2):61-68. doi:10.1016/j.ymgme.2015.06.002. PubMed PMID: 26095521

MPS II

Burton BK, Giugliani R. Diagnosing Hunter syndrome in paediatric practice: practical considerations and common pitfalls. Eur J Pediatr. 2012;171(4):631-639. doi: 10.1007/s00431-012-1703-y. PubMed PMID: 22383073
Giugliani R, Federhen A, Muñoz Rojas MV, et al. [Enzyme replacement therapy for mucopolysaccharidoses I, II and VI: recommendations from a group of Brazilian F experts]. Rev Assoc Med Bras. 2010;56(3):271-277. PubMed PMID: 20676532
Giugliani R, Federhen A, Rojas MV, et al. Mucopolysaccharidosis I, II and VI: Brief review and guidelines for treatment. Genet Mol Biol. 2010;33(4):589-604. PubMed PMID: 21637564
Giugliani R, Villarreal ML, Valdez CA, et al. Guidelines for diagnosis and treatment of Hunter Syndrome for clinicians in Latin America. Genet Mol Biol. 2014;37(2):315-329. PubMed PMID: 25071396
Guillén-Navarro E, Blasco AJ, Gutierrez-Solana LG, et al. [Clinical practice guideline for the management of Hunter syndrome. Hunter España working group]. Med Clin (Barc). 2013;141(10):453.e1-e13. doi:10.1016/j.medcli.2013.07.010. PubMed PMID: 24060500
Jones SA, Almássy Z, Beck M, et al. Mortality and cause of death in mucopolysaccharidosis type II: a historical review based on data from the Hunter Outcome Survey (HOS). J Inherit Metab Dis. 2009;32(4):534-543. doi:10.1007/s10545-009-1119-7. PubMed PMID: 19597960
Lampe C, Bosserhoff AK, Burton BK, et al. Long-term experience with enzyme replacement therapy (ERT) in MPS II patients with a severe phenotype: an international case series. J Inherit Metab Dis. 2014;37(5):823-829. doi:10.1007/s10545-014-9686-7. PubMed PMID: 24596019
Malik V, Nichani J, Rothera MP, et al. Tracheostomy in mucopolysaccharidosis type II (Hunter’s Syndrome). Int J Pediatr Otorhinolaryngol. 2013;77(7):1204-1208. doi:10.1016/j.ijporl.2013.05.002. PubMed PMID: 23726952
Muenzer J, Beck M, Eng CM, et al. Multidisciplinary management of Hunter syndrome. Paediatrics. 2009;124(6):e1228-e1239. doi:10.1542/peds.2008-0999. PubMed PMID: 19901005
Muenzer J, Bodamer O, Burton B, et al. The role of enzyme replacement therapy in severe Hunter syndrome: an expert panel consensus. Eur J Pediatr. 2012;171(1):181-188. doi:10.1007/s00431-011-1606-3. PubMed PMID: 22037758
Scarpa M, Almássy Z, Beck M, et al. Mucopolysaccharidosis type II: European recommendations for the diagnosis and multidisciplinary management of a rare disease. Orphanet J Rare Dis. 2011;6:72. doi:10.1186/1750-1172-6-72. PubMed PMID: 22059643
Wraith JE, Scarpa M, Beck M, et al. Mucopolysaccharidosis type II (Hunter syndrome): a clinical review and recommendations for treatment in the era of enzyme replacement therapy. Eur J Pediatr. 2008;167(3):267-277. PubMed PMID: 18038146
Yund B, Rudser K, Ahmed A, et al. Cognitive, medical and neuroimaging characteristics of attenuated mucopolysaccharidosis type II. Mol Genet Metab. 2015;114(2):170-177. doi:10.1016/j.ymgme.2014.12.299. PubMed PMID: 25541100

MPS III

Delaney KA, Rudser KR, Yund BD, et al. Methods of neurodevelopmental assessment in children with neurodegenerative disease: Sanfilippo syndrome. JIMD Rep. 2014;13:129-137. doi:10.1007/8904_2013_269. PubMed PMID: 24190801
de Ruijter J, Broere L, Mulder MF, et al. Growth in patients with mucopolysaccharidosis type III (Sanfilippo disease). J Inherit Metab Dis. 2014 May;37(3):447-454. doi:10.1007/s10545-013-9658-3. PubMed PMID: 24173409

MPS IVA/ Morquio A

Aslam R, van Bommel AC, Hendriksz CJ, Jester A. Subjective and objective assessment of hand function in mucopolysaccharidosis IVA patients. JIMD Rep. 2013;9:59-65. doi:10.1007/8904_2012_179. PubMed PMID: 23430548
Berger KI, Fagondes SC, Giugliani R, et al. Respiratory and sleep disorders in mucopolysaccharidosis. J Inherit Metab Dis. 2013>;36(2):201-210. doi:10.1007/s10545-012-9555-1. PubMed PMID: 23151682
Chaudhuri S, Duggappa AK, Mathew S, Venkatesh S. Safe intubation in Morquio-Brailsford syndrome: A challenge for the anaesthesiologist. J Anaesthesiol Clin Pharmacol. 2013;29(2):258-261. doi:10.4103/0970-9185.111666. PubMed PMID: 23878456
Charrow J, Alden TD, Breathnach CA, et al. Diagnostic evaluation, monitoring and perioperative management of spinal cord compression in patients with Morquio syndrome. Mol Genet Metab. 2015;114(1):11-18. doi:10.1016/j.ymgme.2014.10.010. PubMed PMID: 25496828
Harmatz PR, Mengel KE, Giugliani R, et al. Longitudinal analysis of endurance and respiratory function from a natural history study of Morquio A syndrome. Mol Genet Metab. 2015;114(2):186-194. doi:10.1016/j.ymgme.2014.10.015. PubMed PMID: 25582974
Harmatz P, Mengel KE, Giugliani R, et al. The Morquio A Clinical Assessment Program: baseline results illustrating progressive, multisystemic clinical impairments in Morquio A subjects. Mol Genet Metab. 2013;109(1):54-61. doi:10.1016/j.ymgme.2013.01.021. PubMed PMID: 23452954
Hendriksz CJ, Al-Jawad M, Berger KI, et al. Clinical overview and treatment options for non-skeletal manifestations of mucopolysaccharidosis type IVA. J Inherit Metab Dis. 2013;36(2):309-322. doi:10.1007/s10545-012-9459-0. PubMed PMID: 22358740
Hendriksz CJ, Berger KI, Giugliani R, et al. International guidelines for the management and treatment of Morquio A syndrome. Am J Med Genet A. 2015;167A(1):11-25. PubMed PMID: 25346323
Hendriksz CJ, Burton B, Fleming TR, et al. Efficacy and safety of enzyme replacement therapy with BMN 110 (elosulfase alfa) for Morquio A syndrome (mucopolysaccharidosis IVA): a phase 3 randomised placebo-controlled study. J Inherit Metab Dis. 2014;37(6):979-990. doi:10.1007/s10545-014-9715-6. PubMed PMID: 24810369
Hendriksz CJ, Giugliani R, Harmatz P, et al. Multi-domain impact of elosulfase alfa in Morquio A syndrome in the pivotal phase III trial. Mol Genet Metab. 2015;114(2):178-185. PubMed PMID: 25284089
Hendriksz CJ, Lavery C, Coker M, et al. Burden of disease in patients with Morquio A syndrome: results from an international patient-reported outcomes survey. Orphanet J Rare Dis. 2014;9:32. doi:10.1186/1750-1172-9-32. PubMed PMID: 24602160
Montaño AM, Tomatsu S, Brusius A, et al. Growth charts for patients affected with Morquio A disease. Am J Med Genet A. 2008;146A(10):1286-1295. doi:10.1002/ajmg.a.32281. PubMed PMID: 18412124
Solanki GA, Martin KW, Theroux MC, et al. Spinal involvement in mucopolysaccharidosis IVA (Morquio-Brailsford or Morquio A syndrome): presentation, diagnosis and management. J Inherit Metab Dis. 2013;36(2):339-355. doi: 10.1007/s10545-013-9586-2. PubMed PMID: 23385297
Theroux MC, Nerker T, Ditro C, Mackenzie WG. Anaesthetic care and perioperative complications of children with Morquio syndrome. Paediatr Anaesth. 2012;22(9):901-907. doi:10.1111/j.1460-9592.2012.03904.x. PubMed PMID: 22738181
Tomatsu S, Averill LW, Sawamoto K, et al. Obstructive airway in Morquio A syndrome, the past, the present and the future. Mol Genet Metab. 2015;S1096-7192(15)30053-30056. doi:10.1016/j.ymgme.2015.09.007. PubMed PMID: 26432669
Walker R, Belani KG, Braunlin EA, et al. Anaesthesia and airway management in mucopolysaccharidosis. J Inherit Metab Dis. 2013;36(2):211-219. doi:10.1007/s10545-012-9563-1. PubMed PMID: 23197104
White KK, Jester A, Bache CE, et al. Orthopaedic management of the extremities in patients with Morquio A syndrome. J Child Orthop. 2014;8(4):295-304. doi:10.1007/s11832-014-0601-4. PubMed PMID: 25001525
Wood TC, Harvey K, Beck M, et al. Diagnosing mucopolysaccharidosis IVA. J Inherit Metab Dis. 2013;36(2):293-307. doi:10.1007/s10545-013-9587-1. PubMed PMID: 23371450

MPS VI

Berger KI, Fagondes SC, Giugliani R, et al. Respiratory and sleep disorders in mucopolysaccharidosis. J Inherit Metab Dis. 2013;36(2):201-210. doi:10.1007/s10545-012-9555-1. PubMed PMID: 23151682
Braunlin EA, Harmatz PR, Scarpa M, et al. Cardiac disease in patients with mucopolysaccharidosis: presentation, diagnosis and management. J Inherit Metab Dis. 2011;34(6):1183-1197. doi:10.1007/s10545-011-9359-8. PubMed PMID 21744090
Decker C, Yu ZF, Giugliani R, Schwartz IV, et al. Enzyme replacement therapy for mucopolysaccharidosis VI: Growth and pubertal development in patients treated with recombinant human N-acetylgalactosamine 4-sulfatase. J Pediatr Rehabil Med. 2010;3(2):89-100. PubMed PMID: 20634905
Fahnehjelm KT, Ashworth JL, Pitz S, et al. Clinical guidelines for diagnosing and managing ocular manifestations in children with mucopolysaccharidosis. Acta Ophthalmol. 2012;90(7):595-602. doi:10.1111/j.1755-3768.2011.02280.x. PubMed PMID: 22136369
Furujo M, Kubo T, Kosuga M, Okuyama T. Enzyme replacement therapy attenuates disease progression in two Japanese siblings with mucopolysaccharidosis type VI. Mol Genet Metab. 2011;104(4):597-602. doi:10.1016/j.ymgme.2011.08.029. PubMed PMID: 21930407
Giugliani R, Harmatz P, Wraith JE. Management guidelines for mucopolysaccharidosis VI. Paediatrics. 2007;120:405-418. doi:10.1542/peds.2006-2184. PubMed PMID: 17671068
Harmatz P, Giugliani R, Schwartz IVD, et al; for MPS VI Study Group. Long-term follow-up of endurance and safety outcomes during enzyme replacement therapy for mucopolysaccharidosis VI: final results of three clinical studies of recombinant human N-acetylgalactosamine 4-sulfatase. Mol Genet Metab. 2008;94(4):469-475. doi:10.1016/j.ymgme.2008.04.001. PubMed PMID: 18502162
Harmatz P, Giugliani R, Schwartz I, et al; for MPS VI Phase 3 Study Group. Enzyme replacement therapy for mucopolysaccharidosis VI: a phase 3, randomised, double-blind, placebo-controlled, multinational study of recombinant human N-acetylgalactosamine 4-sulfatase (recombinant human arylsulfatase B or RHASB) and follow-on, open-label extension study. J Pediatr. 2006;148(4):533-539. doi:10.1016/j.jpeds.2005.12.014. PubMed PMID: 16647419
Harmatz P, Yu ZF, Giugliani R, et al. Enzyme replacement therapy for mucopolysaccharidosis VI: evaluation of long-term pulmonary function in patients treated with recombinant human N-acetylgalactosamine 4-sulfatase. J Inherit Metab Dis. 2010;33(1):51-60. doi:10.1007/s10545-009-9007-8. PubMed PMID: 20140523
McGill JJ, Inwood AC, Coman DJ, et al. Enzyme replacement therapy for mucopolysaccharidosis VI from 8 weeks of age – a sibling control study. Clin Genet. 2010;77(5):492-498. doi:10.1111/j.1399-0004.2009.01324.x. PubMed PMID: 19968667
Quartel A, Hendriksz CJ, Parini R, Graham S, Lin P, Harmatz P. Growth charts for individuals with mucopolysaccharidosis VI (Maroteaux-Lamy Syndrome). JIMD Rep. 2015;18:1-11. doi:10.1007/8904_2014_333. PubMed PMID: 25518809
Sohn BS, Park SW, Kim S, et al. Enzyme replacement therapy improves joint motion and outcome of the 12-min walk test in a mucopolysaccharidosis type VI patient previously with bone marrow transplantation. Am J Med Genet A. 2012;158A(5):1158-1163. doi:10.1002/ajmg.a.35263. PubMed PMID: 22495825
Solanki GA, Alden TD, Burton BK, et al. A multinational, multidisciplinary consensus for the diagnosis and management of spinal cord compression among patients with mucopolysaccharidosis VI. Mol Genet Metab. 2012;107:15-24. doi:10.1016/j.ymgme.2012.07.018. PubMed PMID: 22938833
Swiedler SJ, Beck M, Bajbouj M, et al. Threshold effect of urinary glycosaminoglycans and the walk test as indicators of disease progression in a survey of subjects with mucopolysaccharidosis VI (Maroteaux–Lamy syndrome). Am J Med Genet A. 2005;134A(2):144-150. doi:10.1002/ajmg.a.30579. PubMed PMID: 15690405
Valayannopoulos V, Nicely H, Harmatz P, Turbeville S. Mucopolysaccharidosis VI. Orphanet J Rare Dis. 2010;5:5. doi:10.1186/1750-1172-5-5. PMID: 20385007
Walker R, Belani KG, Braunlin EA, et al. Anaesthesia and airway management in mucopolysaccharidosis. J Inherit Metab Dis. 2013;36(2):211-219. doi:10.1007/s10545-012-9563-1. PubMed PMID: 23197104
Wood T, Bodamer OA, Burin MG, et al. Expert recommendations for the laboratory diagnosis of MPS VI. Mol Genet Metab. 2012;106(1):73-82. doi:10.1016/j.ymgme.2012.02.005. PubMed PMID: 22405600

MPS VII

Bernsen PLJA, Wevers RA, Gabreëls FJM, Lamers KJB, Sonnen AEH, Schuurmans Stekhoven JH Phenotypic expression in mucopolysaccharidosis VII. J Neurol Neurosurg Psychiatry. 1987;50(6):699-703. Pubmed PMID 3112309
Gehler J, Cantz M, Tolksdorf M, Spranger J, Gilbert E, Drube H. Mucopolysaccharidosis VII: β-glucuronidase deficiency. Humangenetik. 1974;23(2):149-158. Pubmed PMID 4277583
Gniadek TJ, Singer N, Barker NJ, et al. Cardiovascular pathologies in mucopolysaccharidosis type VII (Sly Syndrome). Cardiovasc Pathol. 2015;24(5):322-326. doi:10.1016/j.carpath.2015.06.001. Pubmed PMID 26141114
Tomatsu S, Montaño AM, Dung VC, Grubb JH, Sly WS. Mutations and polymorphisms in GUSB gene in mucopolysaccharidosis VII (Sly Syndrome). Hum Mutat. 2009;30(4):511-519. doi:10.1002/humu.20828. Pubmed PMID 19224584

MPS IX

Imundo L, Leduc CA, Guha S, et al. A complete deficiency of hyaluronoglucosaminidase 1 (HYAL1) presenting as familial juvenile idiopathic arthritis. J Inherit Metab Dis. 2011;34(5):1013-1022. doi:10.1007/s10545-011-9343-3. Pubmed PMID 21559944
Natowicz MR, Short MP, Wang Y, et al. Clinical and biochemical manifestations of hyaluronidase deficiency. N Engl J Med. 1996;335(14):1029-1033. Pubmed PMID 8793927

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Table of MPS disorders and enzymes

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Morquio A MOD Video

MPS VI MOD Video

INDICATION

VIMIZIM® (elosulfase alfa) is indicated for patients with Mucopolysaccharidosis type IVA (MPS IVA; Morquio A syndrome).

IMPORTANT SAFETY INFORMATION

Life-threatening anaphylactic reactions have occurred in some patients during VIMIZIM® (elosulfase alfa) infusions. Anaphylaxis, presenting as cough, erythema, throat tightness, urticaria, flushing, cyanosis, hypotension, rash, dyspnoea, chest discomfort and gastrointestinal symptoms (e.g. nausea, abdominal pain, retching and vomiting) in conjunction with urticaria, have been reported to occur during VIMIZIM infusions, regardless of duration of the course of treatment. Closely observe patients during and after VIMIZIM administration and be prepared to manage anaphylaxis. Inform patients of the signs and symptoms of anaphylaxis and have them seek immediate medical care should symptoms occur. Patients with acute respiratory illness may be at risk of serious acute exacerbation of their respiratory compromise due to hypersensitivity reactions, and require additional monitoring.

Due to the potential for anaphylaxis, appropriate medical support should be readily available when VIMIZIM is administered and for an appropriate period of time following administration. In clinical trials, cases of anaphylaxis occurred as early as 30 minutes from the start of infusion and up to three hours after infusion, and as late into treatment as the 47th infusion.

In clinical trials, hypersensitivity reactions have been observed as early as 30 minutes from the start of infusion but as late as six days after infusion. Frequent symptoms of hypersensitivity reactions (occurring in more than 2 patients) included anaphylactic reactions, urticaria, peripheral oedema, cough, dyspnoea and flushing.

Because of the potential for hypersensitivity reactions, administer antihistamines with or without antipyretics prior to infusion. Management of hypersensitivity reactions should be based on the severity of the reaction and include slowing or temporary interruption of the infusion and/or administration of additional antihistamines, antipyretics, and/or corticosteroids for mild reactions. However, if severe hypersensitivity reactions occur, immediately stop the infusion of VIMIZIM and initiate appropriate treatment.

Consider the risks and benefits of re-administering VIMIZIM following a severe reaction.

Patients with acute febrile or respiratory illness at the time of VIMIZIM infusion may be at higher risk of life-threatening complications from hypersensitivity reactions. Careful consideration should be given to the patient’s clinical status prior to administration of VIMIZIM and consider delaying the VIMIZIM infusion.

Sleep apnoea is common in MPS IVA patients. Evaluation of airway patency should be considered prior to initiation of treatment with VIMIZIM. Patients using supplemental oxygen or continuous positive airway pressure (CPAP) during sleep should have these treatments readily available during infusion in the event of an acute reaction, or extreme drowsiness/sleep induced by antihistamine use.

Spinal or cervical cord compression (SCC) is a known and serious complication of MPS IVA and may occur as part of the natural history of the disease. In clinical trials, SCC was observed both in patients receiving VIMIZIM and patients receiving placebo. Patients with MPS IVA should be monitored for signs and symptoms of SCC (including back pain, paralysis of limbs below the level of compression, urinary and faecal incontinence) and given appropriate clinical care.

All patients treated with VIMIZIM 2 mg/kg once per week in the placebo-controlled trial developed anti-drug antibodies. The relationship between the presence of neutralising antibodies and long-term therapeutic response could not be determined.

VIMIZIM should be used during pregnancy only if the potential benefit justifies the potential risk to the foetus. It is not known if VIMIZIM is present in human milk. Exercise caution when administering VIMIZIM to a breastfeeding mother. There is a Morquio A Registry that collects data on pregnant women and breastfeeding mothers with MPS IVA who are treated with VIMIZIM. Contact MARS@BMRN.com for information and enrollment.

Safety and effectiveness in paediatric patients below 5 years of age have not been established.

In clinical trials, the most common adverse reactions (≥10%) occurring during infusion included pyrexia, vomiting, headache, nausea, abdominal pain, chills and fatigue. The acute reactions requiring intervention were managed by either temporarily interrupting or discontinuing infusion, and administering additional antihistamine, antipyretics or corticosteroids.

To report SUSPECTED ADVERSE REACTIONS contact BioMarin Pharmaceutical Inc. at 1-866-906-6100, or FDA at 1-800-FDA-1088 or go to www.fda.gov/medwatch.

Please see full Prescribing Information, including boxed warning.

INDICATION

NAGLAZYME® (galsulfase) is indicated for patients with Mucopolysaccharidosis VI (MPS VI; Maroteaux-Lamy syndrome). NAGLAZYME has been shown to improve walking and stair-climbing capacity.

IMPORTANT SAFETY INFORMATION

Life-threatening anaphylactic reactions and severe allergic reactions have been observed in some patients during NAGLAZYME (galsulfase) infusions and up to 24 hours after infusion. If these reactions occur, immediate discontinuation of NAGLAZYME is recommended and appropriate medical treatment should be initiated, which may include resuscitation, epinephrine, administering additional antihistamines, antipyretics or corticosteroids. In patients who have experienced anaphylaxis or other severe allergic reactions during infusion with NAGLAZYME, caution should be exercised upon rechallenge; appropriately trained personnel and equipment for emergency resuscitation (including epinephrine) should be available during infusions.

As with other enzyme replacement therapies, immune-mediated reactions, including membranous glomerulonephritis have been observed. In clinical trials, nearly all patients developed antibodies as a result of treatment with NAGLAZYME; however, the analysis revealed no consistent predictive relationship between total antibody titre, neutralising or IgE antibodies, and infusion-associated reactions, urinary glycosaminoglycan (GAG) levels, or endurance measures.

Caution should be exercised when administering NAGLAZYME to patients susceptible to fluid volume overload because congestive heart failure may result. Consider a decreased total infusion volume and infusion rate when administering NAGLAZYME to these patients.

Consideration to delay NAGLAZYME infusion should be given when treating patients who present with an acute febrile or respiratory illness. Sleep apnoea is common in MPS VI patients and antihistamine pretreatment may increase the risk of apnoeic episodes. Evaluation of airway patency should be considered prior to the initiation of treatment. Patients using supplemental oxygen or continuous positive airway pressure (CPAP) during sleep should have these treatments readily available during infusion in the event of an infusion reaction, or extreme drowsiness/sleep induced by antihistamine use.

Pretreatment with antihistamines with or without antipyretics is recommended prior to the start of infusion to reduce the risk of infusion reactions. If infusion reactions occur, decreasing the infusion rate, temporarily stopping the infusion, or administering additional antihistamines and/or antipyretics is recommended.

During infusion, serious adverse reactions included laryngeal oedema, apnoea, pyrexia, urticaria, respiratory distress, angioedema, and anaphylactoid reaction; severe adverse reactions included urticaria, chest pain, rash, abdominal pain, dyspnoea, apnoea, laryngeal oedema and conjunctivitis. The most common adverse events (=10%) observed in clinical trials in patients treated with NAGLAZYME were rash, pain, urticaria, pyrexia, pruritus, chills, headache, nausea, vomiting, abdominal pain and dyspnoea. The most common adverse reactions requiring interventions are infusion-related reactions.

Spinal/cervical cord compression is a known and serious complication that is expected to occur during the natural course of MPS VI. Signs and symptoms of spinal/cervical cord compression include back pain, paralysis of limbs below the level of compression and urinary or faecal incontinence. Patients should be evaluated for spinal/cervical cord compression prior to initiation of NAGLAZYME to establish a baseline and risk profile. Patients treated with NAGLAZYME should be regularly monitored for the development or progression of spinal/cervical cord compression and be given appropriate clinical care.

To report SUSPECTED ADVERSE REACTIONS contact BioMarin Pharmaceutical Inc. at 1-866-906-6100, or FDA at 1-800-FDA-1088 or go to www.fda.gov/medwatch.

Please see full Prescribing Information.

It's a new era in management. Stay informed.