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Rebound of Disease Activity After Withdrawal of Fingolimod (FTY720) Treatment FREE

Joachim B. Havla, MD; Hannah L. Pellkofer, MD; Ingrid Meinl, MD; Lisa Ann Gerdes, MD; Reinhard Hohlfeld, MD; Tania Kümpfel, MD
[+] Author Affiliations

Author Affiliations: Institute of Clinical Neuroimmunology, Ludwig-Maximilians-University, Munich, Germany.


Arch Neurol. 2012;69(2):262-264. doi:10.1001/archneurol.2011.1057.
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Published online

ABSTRACT

Background The oral sphingosine-1-phosphate receptor modulator fingolimod (FTY720) was recently approved for the treatment of relapsing-remitting multiple sclerosis. To date, data about a possible recurrence of disease activity after discontinuation of fingolimod treatment are scarce.

Objective To describe a patient who discontinued fingolimod treatment after a local malignant melanoma was diagnosed. Three months after cessation, he had a striking rebound of multiple sclerosis activity.

Design Case report and review of literature.

Setting Institute of Clinical Neuroimmunology, Ludwig-Maximilians-University, Munich, Germany.

Patient A 45-year-old man diagnosed as having relapsing-remitting multiple sclerosis.

Main Outcome Measures Multiple sclerosis disease activity including annual relapse rate, Expanded Disability Status Scale score, and number of gadolinium-enhancing lesions on magnetic resonance imaging before, during, and after treatment with fingolimod.

Results Three months after discontinuation of treatment with fingolimod, the patient experienced a severe relapse, with Expanded Disability Status Scale score progression from 2.5 to 4.5. On brain and spinal magnetic resonance imaging, he showed a rebound of disease activity, with a drastic increase of gadolinium-enhancing lesions (>20).

Conclusions Two aspects relevant to any newly approved multiple sclerosis treatment with immunomodulatory properties are highlighted with this case: first, possible rebound of disease activity after discontinuation; second, the occurrence of a tumor as a possible treatment-related complication.

Figures in this Article

Approval studies have demonstrated the considerable efficacy of the sphingosine-1-phosphate receptor modulator fingolimod (FTY720), a new oral immunomodulatory agent that causes selective retention of certain immune cells in lymph nodes in relapsing-remitting multiple sclerosis (RRMS). Data about a possible recurrence of disease activity after discontinuation are scarce. We describe a patient with severe recurrence of disease activity shortly after discontinuation of fingolimod treatment, indicating a rebound of disease activity in this patient.

REPORT OF A CASE

A 45-year-old man was diagnosed as having RRMS in August 2004. Therapy with interferon-beta 1a, 44 μg between October 2004 and October 2005 was terminated owing to severe local adverse effects. In October 2006, he entered the FREEDOMS (Efficacy and Safety of Fingolimod in Patients With Relapsing-Remitting Multiple Sclerosis) study, a phase 3 trial comparing the efficacy and safety of oral fingolimod with placebo. At entry, his Expanded Disability Status Scale (EDSS) score was 2.0, and brain magnetic resonance imaging (MRI) showed 2 gadolinium-enhancing lesions. The annual relapse rate before study entry was 2.0. He was treated with fingolimod, 0.5 mg, during the first 2 years of the core study and for 2 years during the extension period. Altogether, he had 3 mainly mild sensory relapses during the 4 years of fingolimod treatment, amounting to an annual relapse rate of 0.75. Relapses were treated with high-dose intravenous methylprednisolone pulse therapy, 1 to 2 g for 3 to 5 days, and were followed by nearly complete clinical remission. Repeated brain and spinal MRI scans between 2007 and 2010 never showed any evidence for subclinical disease activity (no gadolinium-enhancing lesions), and the EDSS score remained stable during the study (1.5-2.5). As expected, blood lymphocyte counts decreased by 50% to 60% during fingolimod treatment. In October 2010, the study medication had to be discontinued (EDSS score, 2.5) when a superficially spreading malignant melanoma was detected in the right knee area (Clark level I, pT1a). After excision, there was no evidence of local spreading beyond the excision border or distant metastases. As part of the study protocol, fingolimod therapy had to be stopped. Two weeks later, the patient reported hypesthesias in both legs. Symptoms improved after treatment with intravenous methylprednisolone, 1 g for 3 days. At this point, peripheral lymphocyte counts returned to normal and were comparable to pretreatment levels. In January 2011, 3 months after study discontinuation, he experienced another striking relapse with severe exacerbation of neuropathic pain, worsening of hypesthesia, and new paresis of the left leg. His EDSS score increased significantly to 4.5. Brain MRI and subsequent spinal MRI showed multiple (>20) new gadolinium-enhancing lesions (Figure). Treatment with intravenous methylprednisolone, 1 g for 3 days, was initiated, leading to partial remission of symptoms. Cerebrospinal fluid analysis showed mild lymphocytic pleocytosis (6 /μl; to convert to ×109 multiply by 0.001), no malignant cells, positive oligoclonal bands, and a normal CD4/CD8 ratio (2.3).

Place holder to copy figure label and caption
Graphic Jump Location

Figure. Gadolinium-enhancing lesions on T1-weighted magnetic resonance images before and after fingolimod treatment. A, Baseline T1-weighted magnetic resonance image taken in August 2006, with 2 gadolinium- enhancing lesions. B, Follow-up T1-weighted magnetic resonance image 3 months after withdrawal of fingolimod treatment in January 2011, with more than 20 gadolinium-enhancing lesions. Magnetic resonance images during fingolimod treatment never showed gadolinium-enhancing lesions (data not shown).

Because of the marked disease activity with an unusually high number of gadolinium-enhancing lesions on brain and spinal MRI as well as EDSS score deterioration (EDSS score after intravenous methylprednisolone therapy, 3.5), resumption of immunomodulatory treatment was indicated. At this point, fingolimod was not yet approved in Europe for the treatment of RRMS; therefore, escalation therapy with natalizumab was started after written informed consent had been given.

COMMENT

This case highlights 2 aspects that are potentially relevant to any newly approved MS treatment with immunomodulatory properties: (1) a possible rebound of disease activity after discontinuation, and (2) the occurrence of a tumor as a possible treatment-related complication.

Our patient presented with severe recurrence of disease activity shortly after discontinuation of treatment with fingolimod, a new oral MS drug that causes selective retention of certain immune cells in lymph nodes.1,2 Disease activity recurred with a clinical relapse 2 weeks after fingolimod treatment was stopped. At this point, peripheral lymphocyte counts had increased again and were comparable to pretreatment levels. Three months later, there was a drastic increase in gadolinium-enhancing lesions and another severe clinical relapse with significant EDSS score progression to 4.5. Blood lymphocyte counts and CD4/CD8 ratio in the cerebrospinal fluid were normal, pointing to immunological recovery. This is in line with pharmacodynamic data showing rapid recovery of lymphocyte counts starting several days after treatment cessation.3,4 Reappearance of disease activity has been previously described after natalizumab treatment interruption.57 As in our patient, disease activity usually recurred 3 to 7 months after cessation of natalizumab treatment. An analysis of more than 1800 patients who stopped therapy with natalizumab showed that return of disease activity was particularly evident in patients who had highly active disease prior to natalizumab therapy.7 Our patient had an annual relapse rate of 2.0 and 2 gadolinium-enhancing lesions on MRI, indicating highly active disease before the start of treatment with fingolimod. However, after fingolimod discontinuation, he showed a much higher number of gadolinium-enhancing lesions on MRI compared with before fingolimod therapy. This is reminiscent of recent reports of patients who had an immune reconstitution inflammatory syndrome–like rebound with unusually severe relapses and high inflammatory disease activity on MRI after cessation of natalizumab therapy.6 It was assumed that such patients might have a rapid influx of immune cells into the cerebrospinal fluid and brain during reconstitution of the immune system. Further data are needed to identify reliable predictors of an elevated risk of recurrence or rebound of disease activity after discontinuation of treatment with natalizumab or fingolimod.

Our patient had to discontinue study medication following the diagnosis of malignant melanoma (Clark level I, pT1a). He had been treated with fingolimod, 0.5 mg once daily, for 4 years in the FREEDOMS studies (FTY720 2301 and 2301E1). In the FREEDOMS trial, 1 patient in the high-dose group (1.25 mg) and 1 patient in the placebo group presented with malignant melanoma (0.2%, each group).8 In the TRANSFORMS (Trial Assessing Injectable Interferon vs FTY720 Oral in Relapsing-Remitting Multiple Sclerosis) trial, 3 cases (0.7%) of malignant melanoma occurred in the low-dose fingolimod group (0.5 mg once daily) vs none in the interferon group.9 Regular dermatological assessment was required as part of the study protocols. However, dermatological monitoring is not recommended in either the US Food and Drug Administration or the European Medicines Agency approval process because there is currently no evidence that fingolimod therapy increases the risk of melanoma. Obviously, with any new medication, single observations of potential adverse events such as this and others10,11 cannot be judged as treatment related before extensive data on large numbers of treated patients become available.

ARTICLE INFORMATION

Correspondence: Tania Kümpfel, MD, Institute of Clinical Neuroimmunology, Ludwig-Maximilians-University, Marchioninistr 15, 81377 Munich, Germany (tania.kuempfel@med.uni-muenchen.de).

Accepted for Publication: June 20, 2011.

Author Contributions:Study concept and design: Havla, Gerdes, Hohlfeld, and Kümpfel. Acquisition of data: Havla, Pellkofer, Meinl, and Gerdes. Analysis and interpretation of data: Havla, Pellkofer, Gerdes, Hohlfeld, and Kümpfel. Drafting of the manuscript: Havla and Hohlfeld. Critical revision of the manuscript for important intellectual content: Havla, Pellkofer, Meinl, Gerdes, Hohlfeld, and Kümpfel. Obtained funding: Hohlfeld. Administrative, technical, and material support: Pellkofer, Gerdes, and Hohlfeld. Study supervision: Gerdes, Hohlfeld, and Kümpfel.

Financial Disclosure: The patient described took part in the FREEDOMS (Efficacy and Safety of Fingolimod in Patients with Relapsing-remitting Multiple Sclerosis) study (including the extension) sponsored by Novartis. Drs Havla, Pellkofer, and Gerdes have received travel expense and personal compensation from Merck Serono, Teva Pharmaceutical Industries, Bayer Schering Pharma, Novartis, Merz Pharma, and Biogen Idec. Dr Meinl has received travel expense compensation from Bayer Schering Pharma. Dr Hohlfeld is supported by the Deutsche Forschungsgemeinschaft (SFB 571, A1) and has received personal compensation from Bayer Schering Pharma, Teva Pharmaceutical Industries, Merck Serono, Biogen Idec, and Novartis. Dr Kümpfel has received travel expense and personal compensation from Bayer Schering Pharma, Teva Pharmaceutical Industries, Merck Serono, and Biogen Idec as well as grant support from Bayer-Schering AG.

REFERENCES

Hohlfeld R, Barkhof F, Polman C. Future clinical challenges in multiple sclerosis: relevance to sphingosine 1-phosphate receptor modulator therapy.  Neurology. 2011;76(8):(suppl 3)  S28-S37
PubMed   |  Link to Article
Hla T, Brinkmann V. Sphingosine 1-phosphate (S1P): physiology and the effects of S1P receptor modulation.  Neurology. 2011;76(8):(suppl 3)  S3-S8
PubMed   |  Link to Article
Tedesco-Silva H, Mourad G, Kahan BD,  et al.  FTY720, a novel immunomodulator: efficacy and safety results from the first phase 2A study in de novo renal transplantation.  Transplantation. 2004;77(12):1826-1833
PubMed
Cohen JA, Chun J. Mechanisms of fingolimod's efficacy and adverse effects in multiple sclerosis.  Ann Neurol. 2011;69(5):759-777
PubMed   |  Link to Article
Killestein J, Vennegoor A, Strijbis EM,  et al.  Natalizumab drug holiday in multiple sclerosis: poorly tolerated.  Ann Neurol. 2010;68(3):392-395
PubMed   |  Link to Article
Miravalle A, Jensen R, Kinkel RP. Immune reconstitution inflammatory syndrome in patients with multiple sclerosis following cessation of natalizumab therapy.  Arch Neurol. 2011;68(2):186-191
PubMed   |  Link to Article
O'Connor PW, Goodman A, Kappos L,  et al.  Disease activity return during natalizumab treatment interruption in patients with multiple sclerosis.  Neurology. 2011;76(22):1858-1865
PubMed   |  Link to Article
Kappos L, Radue EW, O’Connor P,  et al; FREEDOMS Study Group.  A placebo-controlled trial of oral fingolimod in relapsing multiple sclerosis.  N Engl J Med. 2010;362(5):387-401
PubMed   |  Link to Article
Cohen JA, Barkhof F, Comi G,  et al; TRANSFORMS Study Group.  Oral fingolimod or intramuscular interferon for relapsing multiple sclerosis.  N Engl J Med. 2010;362(5):402-415
PubMed   |  Link to Article
Schwarz A, Korporal M, Hosch W, Max R, Wildemann B. Critical vasospasm during fingolimod (FTY720) treatment in a patient with multiple sclerosis.  Neurology. 2010;74(24):2022-2024
PubMed   |  Link to Article
Leypoldt F, Münchau A, Moeller F, Bester M, Gerloff C, Heesen C. Hemorrhaging focal encephalitis under fingolimod (FTY720) treatment: a case report.  Neurology. 2009;72(11):1022-1024
PubMed   |  Link to Article

Figures

Place holder to copy figure label and caption
Graphic Jump Location

Figure. Gadolinium-enhancing lesions on T1-weighted magnetic resonance images before and after fingolimod treatment. A, Baseline T1-weighted magnetic resonance image taken in August 2006, with 2 gadolinium- enhancing lesions. B, Follow-up T1-weighted magnetic resonance image 3 months after withdrawal of fingolimod treatment in January 2011, with more than 20 gadolinium-enhancing lesions. Magnetic resonance images during fingolimod treatment never showed gadolinium-enhancing lesions (data not shown).

Tables

References

Hohlfeld R, Barkhof F, Polman C. Future clinical challenges in multiple sclerosis: relevance to sphingosine 1-phosphate receptor modulator therapy.  Neurology. 2011;76(8):(suppl 3)  S28-S37
PubMed   |  Link to Article
Hla T, Brinkmann V. Sphingosine 1-phosphate (S1P): physiology and the effects of S1P receptor modulation.  Neurology. 2011;76(8):(suppl 3)  S3-S8
PubMed   |  Link to Article
Tedesco-Silva H, Mourad G, Kahan BD,  et al.  FTY720, a novel immunomodulator: efficacy and safety results from the first phase 2A study in de novo renal transplantation.  Transplantation. 2004;77(12):1826-1833
PubMed
Cohen JA, Chun J. Mechanisms of fingolimod's efficacy and adverse effects in multiple sclerosis.  Ann Neurol. 2011;69(5):759-777
PubMed   |  Link to Article
Killestein J, Vennegoor A, Strijbis EM,  et al.  Natalizumab drug holiday in multiple sclerosis: poorly tolerated.  Ann Neurol. 2010;68(3):392-395
PubMed   |  Link to Article
Miravalle A, Jensen R, Kinkel RP. Immune reconstitution inflammatory syndrome in patients with multiple sclerosis following cessation of natalizumab therapy.  Arch Neurol. 2011;68(2):186-191
PubMed   |  Link to Article
O'Connor PW, Goodman A, Kappos L,  et al.  Disease activity return during natalizumab treatment interruption in patients with multiple sclerosis.  Neurology. 2011;76(22):1858-1865
PubMed   |  Link to Article
Kappos L, Radue EW, O’Connor P,  et al; FREEDOMS Study Group.  A placebo-controlled trial of oral fingolimod in relapsing multiple sclerosis.  N Engl J Med. 2010;362(5):387-401
PubMed   |  Link to Article
Cohen JA, Barkhof F, Comi G,  et al; TRANSFORMS Study Group.  Oral fingolimod or intramuscular interferon for relapsing multiple sclerosis.  N Engl J Med. 2010;362(5):402-415
PubMed   |  Link to Article
Schwarz A, Korporal M, Hosch W, Max R, Wildemann B. Critical vasospasm during fingolimod (FTY720) treatment in a patient with multiple sclerosis.  Neurology. 2010;74(24):2022-2024
PubMed   |  Link to Article
Leypoldt F, Münchau A, Moeller F, Bester M, Gerloff C, Heesen C. Hemorrhaging focal encephalitis under fingolimod (FTY720) treatment: a case report.  Neurology. 2009;72(11):1022-1024
PubMed   |  Link to Article

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