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Journal of Inherited Metabolic Disease

, Volume 37, Issue 6, pp 969–978 | Cite as

Long-term effectiveness of enzyme replacement therapy in Fabry disease: results from the NCS-LSD cohort study

  • L. J. Anderson
  • K. M. Wyatt
  • W. Henley
  • V. Nikolaou
  • S. Waldek
  • D. A. Hughes
  • G. M. Pastores
  • S. Logan
Original Article

Abstract

Objectives

To determine the effectiveness of enzyme replacement therapy (ERT) for adults and children with Fabry disease.

Design

Cohort study including prospective and retrospective clinical data. Age- and gender-adjusted treatment effects were estimated using generalised linear mixed models. Treated patients contributed data before and during treatment and untreated patients contributed natural history data.

Participants

Consenting adults (N = 289) and children (N = 22) with a confirmed diagnosis of Fabry disease attending a specialist Lysosomal Storage Disorder treatment centre in England. At recruitment 211 adults and seven children were on ERT (range of treatment duration, 0 to 9.7 and 0 to 4.2 years respectively).

Outcome measures

Clinical outcomes chosen to reflect disease progression included left ventricular mass index (LVMI); proteinuria; estimated glomerular filtration rate (eGFR); pain; hearing and transient ischaemic attacks (TIA)/stroke.

Results

We found evidence of a statistically significant association between time on ERT and a small linear decrease in LVMI (p = 0.01); a reduction in the risk of proteinuria after adjusting for angiotensin-converting enzyme inhibitors and angiotensin receptor blockers (p < 0.001) and a small increase in eGFR in men and women without pre-treatment proteinuria (p = 0.01 and p < 0.001 respectively). The same analyses in children provided no statistically significant results. No associations between time on ERT and pain, risk of needing a hearing aid, or risk of stroke or TIAs, were found.

Conclusions

These data provide some further evidence on the long-term effectiveness of ERT in adults with Fabry disease, but evidence of effectiveness could not be demonstrated in children.

Keywords

Proteinuria Enzyme Replacement Therapy Fabry Disease Leave Ventricular Mass Index Transient Ischaemic Attack 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

We thank study site personnel Marie Meehan, Andrea Hill, Debbie Hugh, Sarah West, Sandhya Maddukuri, Kate Blackler, Hannah Russon, Navneeta Reddy, Jennifer Hutchinson, Nike Aina and Noura Hamdi for their hard work in the recruitment of patients to this study, and in managing the patients’ data at each of the seven sites. We thank the late Ed Wraith, Robin Lachmann, Atul Mehta, Ashok Vellodi, Patrick Deegan, Tim Cox, Chris Hendriksz, Philip Lee, Uma Ramaswami, Simon Jones and Tanya Collin-Histed for their contribution to the design and conduct of the study. Thanks to Rob Anderson for his contribution to the design of the study and data collection forms, to Sheena Oxer and Louise Klinger for their contribution to the set-up and coordination of the study, and to Laura Cocking for her help in the design and the management of the databases throughout the study.

We are grateful to all members of the LSD patient support groups and the Trial Steering Committee. Finally, special thanks to the patients and their families who allowed us to collect information from their hospital records and gave their time to complete the questionnaires. We thank them for their invaluable contribution.

Compliance with ethics guidelines

Conflicts of interest

Lindsey Anderson, Katrina Wyatt, William Henley, Vasilis Nikolaou and Stuart Logan declare that they have no conflicts of interest.

Stephen Waldek is a member of the Fabry Registry Board and the Fabry Expert Group and has received funding for research, and honoraria for lectures and consultancy on research studies from Shire HGT and Genzyme. He has also received research grants from Biomarin, Synageva and Amicus.

Derralynn Hughes has received funding for research and travel to meetings, honoraria for lectures and consultancy projects or advisory boards from Shire HGT, Genzyme, Amicus, Actelion, and Biomarin. Consultancy and advisory board work is administered via UCL business and used in part to fund research.

Gregory M. Pastores has received funding for research and travel to meetings, honoraria for lectures and consultancy projects or advisory boards from Shire HGT, Genzyme, Amicus, Actelion, and Biomarin.

Informed consent

All procedures were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2000 (5). Informed consent was obtained from all patients before being included in the study.

Supplementary material

10545_2014_9717_MOESM1_ESM.docx (36 kb)
ESM 1 (DOCX 36 kb)

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Copyright information

© SSIEM and Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • L. J. Anderson
    • 1
  • K. M. Wyatt
    • 1
  • W. Henley
    • 1
  • V. Nikolaou
    • 1
  • S. Waldek
    • 2
  • D. A. Hughes
    • 3
  • G. M. Pastores
    • 4
  • S. Logan
    • 1
  1. 1.Institute of Health ResearchUniversity of Exeter Medical SchoolExeterUK
  2. 2.Independent Medical Consultant, Retired Metabolic PhysicianFormerly of Salford Royal NHS Foundation TrustSalfordUK
  3. 3.Department of Haematology, Royal Free CampusUniversity CollegeLondonUK
  4. 4.Department of Medicine/National Centre for Inherited Metabolic DisordersMater Misericordiae University HospitalDublin 7Ireland

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