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June 08, 2021; 96 (23) Clinical/Scientific NotesOpen Access

Intra-arterial Melphalan for Neurologic Non-Langerhans Cell Histiocytosis

View ORCID ProfileJasmine H. Francis, Y. Pierre Gobin, View ORCID ProfileRuham Alshiekh Nasany, Jared Knopman, Gary A. Ulaner, Katherine S. Panageas, Vaios Hatzoglou, Kim Salvaggio, David H. Abramson, Athos Patsalides, View ORCID ProfileEli L. Diamond
First published May 12, 2021, DOI: https://doi.org/10.1212/WNL.0000000000012070
Jasmine H. Francis
From the Ophthalmic Oncology Service (J.H.F., D.H.A.) and Departments of Neurology (R.A.N., E.L.D.), Radiology (G.A.U., V.H.), and Epidemiology and Statistics (K.P.), Memorial Sloan Kettering Cancer Center; Department of Neurosurgery (Y.P.G., J.K., K.S., A.P.), Weill Cornell Medical Center, New York; and Molecular Imaging and Therapy (G.A.U.), Hoag Family Cancer Institute, Newport Beach, CA.
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Y. Pierre Gobin
From the Ophthalmic Oncology Service (J.H.F., D.H.A.) and Departments of Neurology (R.A.N., E.L.D.), Radiology (G.A.U., V.H.), and Epidemiology and Statistics (K.P.), Memorial Sloan Kettering Cancer Center; Department of Neurosurgery (Y.P.G., J.K., K.S., A.P.), Weill Cornell Medical Center, New York; and Molecular Imaging and Therapy (G.A.U.), Hoag Family Cancer Institute, Newport Beach, CA.
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Ruham Alshiekh Nasany
From the Ophthalmic Oncology Service (J.H.F., D.H.A.) and Departments of Neurology (R.A.N., E.L.D.), Radiology (G.A.U., V.H.), and Epidemiology and Statistics (K.P.), Memorial Sloan Kettering Cancer Center; Department of Neurosurgery (Y.P.G., J.K., K.S., A.P.), Weill Cornell Medical Center, New York; and Molecular Imaging and Therapy (G.A.U.), Hoag Family Cancer Institute, Newport Beach, CA.
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Jared Knopman
From the Ophthalmic Oncology Service (J.H.F., D.H.A.) and Departments of Neurology (R.A.N., E.L.D.), Radiology (G.A.U., V.H.), and Epidemiology and Statistics (K.P.), Memorial Sloan Kettering Cancer Center; Department of Neurosurgery (Y.P.G., J.K., K.S., A.P.), Weill Cornell Medical Center, New York; and Molecular Imaging and Therapy (G.A.U.), Hoag Family Cancer Institute, Newport Beach, CA.
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Gary A. Ulaner
From the Ophthalmic Oncology Service (J.H.F., D.H.A.) and Departments of Neurology (R.A.N., E.L.D.), Radiology (G.A.U., V.H.), and Epidemiology and Statistics (K.P.), Memorial Sloan Kettering Cancer Center; Department of Neurosurgery (Y.P.G., J.K., K.S., A.P.), Weill Cornell Medical Center, New York; and Molecular Imaging and Therapy (G.A.U.), Hoag Family Cancer Institute, Newport Beach, CA.
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Katherine S. Panageas
From the Ophthalmic Oncology Service (J.H.F., D.H.A.) and Departments of Neurology (R.A.N., E.L.D.), Radiology (G.A.U., V.H.), and Epidemiology and Statistics (K.P.), Memorial Sloan Kettering Cancer Center; Department of Neurosurgery (Y.P.G., J.K., K.S., A.P.), Weill Cornell Medical Center, New York; and Molecular Imaging and Therapy (G.A.U.), Hoag Family Cancer Institute, Newport Beach, CA.
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Vaios Hatzoglou
From the Ophthalmic Oncology Service (J.H.F., D.H.A.) and Departments of Neurology (R.A.N., E.L.D.), Radiology (G.A.U., V.H.), and Epidemiology and Statistics (K.P.), Memorial Sloan Kettering Cancer Center; Department of Neurosurgery (Y.P.G., J.K., K.S., A.P.), Weill Cornell Medical Center, New York; and Molecular Imaging and Therapy (G.A.U.), Hoag Family Cancer Institute, Newport Beach, CA.
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Kim Salvaggio
From the Ophthalmic Oncology Service (J.H.F., D.H.A.) and Departments of Neurology (R.A.N., E.L.D.), Radiology (G.A.U., V.H.), and Epidemiology and Statistics (K.P.), Memorial Sloan Kettering Cancer Center; Department of Neurosurgery (Y.P.G., J.K., K.S., A.P.), Weill Cornell Medical Center, New York; and Molecular Imaging and Therapy (G.A.U.), Hoag Family Cancer Institute, Newport Beach, CA.
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David H. Abramson
From the Ophthalmic Oncology Service (J.H.F., D.H.A.) and Departments of Neurology (R.A.N., E.L.D.), Radiology (G.A.U., V.H.), and Epidemiology and Statistics (K.P.), Memorial Sloan Kettering Cancer Center; Department of Neurosurgery (Y.P.G., J.K., K.S., A.P.), Weill Cornell Medical Center, New York; and Molecular Imaging and Therapy (G.A.U.), Hoag Family Cancer Institute, Newport Beach, CA.
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Athos Patsalides
From the Ophthalmic Oncology Service (J.H.F., D.H.A.) and Departments of Neurology (R.A.N., E.L.D.), Radiology (G.A.U., V.H.), and Epidemiology and Statistics (K.P.), Memorial Sloan Kettering Cancer Center; Department of Neurosurgery (Y.P.G., J.K., K.S., A.P.), Weill Cornell Medical Center, New York; and Molecular Imaging and Therapy (G.A.U.), Hoag Family Cancer Institute, Newport Beach, CA.
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Eli L. Diamond
From the Ophthalmic Oncology Service (J.H.F., D.H.A.) and Departments of Neurology (R.A.N., E.L.D.), Radiology (G.A.U., V.H.), and Epidemiology and Statistics (K.P.), Memorial Sloan Kettering Cancer Center; Department of Neurosurgery (Y.P.G., J.K., K.S., A.P.), Weill Cornell Medical Center, New York; and Molecular Imaging and Therapy (G.A.U.), Hoag Family Cancer Institute, Newport Beach, CA.
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Citation
Intra-arterial Melphalan for Neurologic Non-Langerhans Cell Histiocytosis
Jasmine H. Francis, Y. Pierre Gobin, Ruham Alshiekh Nasany, Jared Knopman, Gary A. Ulaner, Katherine S. Panageas, Vaios Hatzoglou, Kim Salvaggio, David H. Abramson, Athos Patsalides, Eli L. Diamond
Neurology Jun 2021, 96 (23) 1091-1093; DOI: 10.1212/WNL.0000000000012070

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Histiocytic neoplasms are rare hematologic disorders characterized by pathologic infiltration of activated histiocytes in affected tissues. The treatment of histiocytic neoplasms, including Langerhans cell histiocytosis (LCH) and non-LCH, has advanced in recent years owing to targeted kinase inhibitors (BRAF and MEK) as patients with somatic mutations in the mitogen activated protein kinase (MAPK) pathway derive robust and durable responses with these therapies.1 However, there are patients with non-LCH who do not benefit from targeted therapies, particularly those with histiocytic infiltration of the nervous system, which is associated with mortality in 1 non-LCH disorder. BRAF and MEK inhibitors have limited penetration into the nervous system and worsening neurologic disease despite targeted therapy has been observed.2 These treatments can be limited or contraindicated by disease-related organ dysfunction or comorbidities. The subset of patients without MAPK alterations may not benefit from targeted therapies.

Melphalan is an alkylating agent of mustard gas derivation and small case reports/series suggest histiocytic disease is sensitive to melphalan and similar agents.3 Here we describe an innovative treatment strategy using melphalan intra-arterially delivered to neurologic foci of patients with non-LCH.

Methods

This study was Institution Review Board–approved, exempt for informed consent for retrospective research by Memorial Sloan Kettering Cancer Center. Patients gave informed consent for treatment. Three patients with neurologic or ocular sites of histiocytic disease treated with intra-arterially delivered melphalan were included. Intraarterial melphalan was delivered, as has been previously described,4 infused to one or multiple sites per treatment. The determination of target arterial vasculature and dose per infusion was a subjective process determined by anatomic site of the lesions, the hemodynamics of that site,5 and volume of tumorous disease. The total dose of melphalan was limited to 0.5 mg/kg based on prior experience with hematologic toxicity4 (standard single agent IV dose is 1 mg/kg). Treatment was repeated at 4–6 week intervals, timed with recovery of blood counts. Response to treatment was evaluated by MRI, fluorodeoxyglucose (FDG) PET/CT, and functional ophthalmic assessments.

Results

The full treatment plan (dosing, vascular access, and schedule) and treatment-emergent toxicities are available from Dryad at doi.org/10.5061/dryad.m63xsj418 (tables e1 and e2). There were no procedural adverse events. Patient 1 is a 35-year-old man with heavily pretreated Rosai-Dorfman disease (RDD) of the brain, ophthalmic structures including optic nerves, and no identifiable somatic mutation. His disease progressed despite systemic treatment with both chemotherapy and low-dose MEK inhibition. He received 3 infusions of intra-arterial melphalan to the vertebral and ophthalmic arteries with marked improvement in vision and radiologic lesions (figure, A; data available from Dryad [tables e1 and e2A]). Patient 2 is a 51-year-old woman with RDD of the orbital-craniofacial structures resulting in optic neuropathy, with no somatic mutation identified, refractory to corticosteroids and radiotherapy, with retinopathy contraindicating empiric MEK inhibition. She received intra-arterial melphalan to several arteries over 10 infusions with regression of lesions and resolution of profound visual impairment (figure, B; data available from Dryad [tables e1 and e2B]). Patient 3 is a 41-year-old woman with isolated MAP2K1-mutated, non-LCH of the hypothalamus who could not access targeted therapy due to insurance denial. She received 3 infusions of intra-arterial melphalan to the basilar artery with dramatic tumoral regression (figure, C; data available from Dryad [tables e1 and e2C]).

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Figure Three Patients With Histiocytosis Treated With Intra-arterial Melphalan

(A) Axial postgadolinium MRI of patient 1 shows resolution of optic nerve thickening and enhancement (red arrows) after treatment with 3 intraarterial infusions. (B) Coronal postgadolinium MRI of patient 2 shows regression of left orbital tumor (yellow arrows) after treatment with 6 intraarterial infusions (C) Axial-fused PET-CT imaging of patient 3 shows resolution of hypermetabolic hypothalamic lesion (blue arrows) after treatment with 3 intraarterial infusions.

Discussion

The premise of intra-arterial chemotherapy is to deliver a therapeutic dose to the target lesion while minimizing systemic exposure. This approach has been implemented for the treatment of primary and metastatic brain and spinal tumors using a number of agents.5 Melphalan is particularly appealing for local administration because it is rapidly eliminated and has no neurotoxicity. Melphalan is myelosuppressive in a dose-dependent manner and myelosuppression may occur following intra-arterial delivery for this patient population.

We report a novel implementation of intra-arterial chemotherapy for neurologically severe and treatment-refractory non-LCH. In our patients, this therapy was both feasible and safe, consistent with its implementation in children. Even in the era of targeted therapies for histiocytosis, this approach holds promise for mutation-negative histiocytosis or neurohistiocytosis unmanaged by targeted therapy for a variety of reasons (i.e., poor brain penetration, contraindication, or lack of access). RDD may be particularly suited for this therapy as a substantial subset of patients do not harbor MAPK pathway mutations6 and neurologic RDD is an especially morbid disease manifestation. Limitations of this treatment include restriction of this specialized technique to few centers and the fact that intra-arterial treatment is best suited for a limited number of vascular territories and therefore less practical for multifocal disease. In our patients, we observed successful intra-arterial delivery with robust clinical and radiologic response. This treatment approach would benefit from systematic evaluation of its feasibility and safety across a variety of tumor sites and arterial targets, as well as its efficacy.

Study Funding

This study was supported by philanthropic funding from The Fund for Ophthalmic Knowledge (J.H.F., D.H.A.) and the Cancer Center Support Grant (P30 CA008748) (J.H.F., R.A.N., G.A.U., K.P., D.H.A., E.L.D.), the Frame Family Fund (E.L.D.), Joy Family West Foundation (E.L.D.), and Applebaum Foundation (E.L.D.). The sponsor or funding organization had no role in the design or conduct of this research.

Disclosure

Dr. Francis reports no disclosures. Dr. Gobin discloses stock ownership in and is chief executive officer of Serenity Medical, Inc., outside the submitted work. Drs. Nasany and Knopman report no disclosures. Dr. Ulaner is a consultant for Sanofi and reports grant support from Sanofi, Novartis, Genentech, and Puma Biotechnology. Dr. Panageas discloses stock ownership in Johnson & Johnson, Viking Therapeutics, Catalyst, and Pfizer, outside the submitted work. Dr. Hatzoglou, K. Salvaggio, Dr. Abramson, and Dr. Patsalides report no disclosures. Dr. Diamond discloses editorial support from Pfizer Inc., outside the submitted work. Go to Neurology.org/N for full disclosures.

Acknowledgment

The authors thank Radiology Informatics and the MSKCC Advanced Imaging Lab (SAIL) for assistance in the multimedia content of this publication; and Sue-Weil Kazzaz, Design Creative Services, Department of Marketing and Communications, Memorial Sloan Kettering Cancer Center, for her artistic work.

Appendix Authors

Table

Footnotes

  • Go to Neurology.org/N for full disclosures. Funding information and disclosures deemed relevant by the authors, if any, are provided at the end of the article.

  • The Article Processing Charge was funded by Frame Family Fund.

  • Received November 12, 2020.
  • Accepted in final form March 4, 2021.
  • Copyright © 2021 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Academy of Neurology.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND), which permits downloading and sharing the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.

References

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    Efficacy of MEK inhibition in patients with histiocytic neoplasms. Nature 2019;567(7749):521-524.
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    . Technique of intra-arterial chemotherapy for retinoblastoma. In: Francis JH, Abramson DH, eds. Advances in Vision Research, Volume I [online]. Springer; 2015:27-36.
  5. 5.↵
    1. Gobin YP,
    2. Cloughesy TF,
    3. Chow KL, et al.
    Intraarterial chemotherapy for brain tumors by using a spatial dose fractionation algorithm and pulsatile delivery. Radiology 2001;218(3):724-732.
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    Activating mutations in CSF1R and additional receptor tyrosine kinases in histiocytic neoplasms. Nat Med 2019;25(12):1839-1842.
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