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Lin F, Jacqueline Kwong W, Pan I, Ye X, Dai D, Tap W. Real-World Patient Experience of Pexidartinib for Tenosynovial Giant-Cell Tumor. Oncologist 2024; 29:e535-e543. [PMID: 37874926 PMCID: PMC10994266 DOI: 10.1093/oncolo/oyad282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 09/27/2023] [Indexed: 10/26/2023] Open
Abstract
BACKGROUND Pexidartinib (Turalio) is the only systemic therapy approved by the FDA for the treatment of adult patients with symptomatic tenosynovial giant-cell tumor (TGCT) associated with severe morbidity or functional limitations, and not amenable to improvement with surgery. This study assessed patient-reported treatment experiences and symptom improvement among patients receiving pexidartinib. METHODS A cross-sectional, web-based survey collected data on demographics, disease history, pexidartinib dosing, and symptoms before and after pexidartinib use. RESULTS Of 288 patients enrolled in the Turalio REMS program in May 2021, 83 completed the survey: mean age was 44.2 years, 62.7% were female, and most common tumor sites were in knee (61%) and ankle (12%). Mean initial dose was 622 mg/day: 29 patients reported reduction from initial dose and 8 had dose reduction after titrating up to a higher dose. At the time of survey completion, median time on pexidartinib was 6.0 months; 22 (26.5%) patients discontinued pexidartinib due to physician suggestion, abnormal laboratory results, side effect, or symptom improvement. Compared with before pexidartinib initiation, most patients reported improvement in overall TGCT symptom (78.3%) and physical function (77.2%) during pexidartinib treatment. Significant improvement was reported during pexidartinib treatment in worst stiffness numeric rating scale (NRS) (3.0 vs. 6.2, P < .05) and worst pain NRS (2.7 vs. 5.7, P < .05). CONCLUSION Findings from this cross-sectional survey confirmed the benefit of pexidartinib in improving symptoms and functional outcomes among patients with symptomatic TGCTs from the patients' perspective. Future research is warranted to examine the long-term benefit and risk of pexidartinib.
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Affiliation(s)
- Feng Lin
- Health Economics and Outcomes Research, Daiichi Sankyo, Inc., Basking Ridge, NJ, USA
| | | | - Irene Pan
- Epidemiology and Real-World Evidence, United BioSource LLC, Blue Bell, PA, USA
| | - Xin Ye
- Health Economics and Outcomes Research, Daiichi Sankyo, Inc., Basking Ridge, NJ, USA
| | - Dong Dai
- Health Economics and Outcomes Research, Daiichi Sankyo, Inc., Basking Ridge, NJ, USA
| | - William Tap
- Sarcoma Medical Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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2
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Tap WD, Sharma MG, Vallee M, Smith BD, Sherman ML, Ruiz-Soto R, de Sande MV, Randall RL, Bernthal NM, Gelderblom H. The MOTION study: a randomized, phase III study of vimseltinib for the treatment of tenosynovial giant cell tumor. Future Oncol 2024; 20:593-601. [PMID: 37593881 DOI: 10.2217/fon-2023-0238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023] Open
Abstract
Tenosynovial giant cell tumor (TGCT) is a rare, locally aggressive neoplasm that occurs in the synovium of joints, bursae, or tendon sheaths and is caused by upregulation of the CSF1 gene. Vimseltinib is an oral switch-control tyrosine kinase inhibitor specifically designed to selectively and potently inhibit the CSF1 receptor. Here, we describe the rationale and design for the phase III MOTION trial (NCT05059262), which aims to evaluate the efficacy and safety of vimseltinib in participants with TGCT not amenable to surgical resection. In part 1, participants are randomized to receive vimseltinib 30 mg twice weekly or matching placebo for ≤24 weeks. Part 2 is a long-term treatment phase in which participants will receive open-label vimseltinib.
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Affiliation(s)
- William D Tap
- Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Maitreyi G Sharma
- Clinical Development, Deciphera Pharmaceuticals, LLC, Waltham, MA 02451, USA
| | - Marc Vallee
- Biostatistics, Deciphera Pharmaceuticals, LLC, Waltham, MA 02451, USA
| | - Bryan D Smith
- Biological Sciences, Deciphera Pharmaceuticals, LLC, Lawrence, KS 66044, USA
| | - Matthew L Sherman
- Clinical Development, Deciphera Pharmaceuticals, LLC, Waltham, MA 02451, USA
| | - Rodrigo Ruiz-Soto
- Clinical Development, Deciphera Pharmaceuticals, LLC, Waltham, MA 02451, USA
| | | | - R Lor Randall
- University of California Davis Medical Center, Sacramento, CA 95817, USA
| | | | - Hans Gelderblom
- Leiden University Medical Center, Leiden, 2333, The Netherlands
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3
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Spierenburg G, Staals EL, Palmerini E, Randall RL, Thorpe SW, Wunder JS, Ferguson PC, Verspoor FGM, Houdek MT, Bernthal NM, Schreuder BHWB, Gelderblom H, van de Sande MAJ, van der Heijden L. Active surveillance of diffuse-type tenosynovial giant cell tumors: A retrospective, multicenter cohort study. Eur J Surg Oncol 2024; 50:107953. [PMID: 38215550 DOI: 10.1016/j.ejso.2024.107953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/19/2023] [Accepted: 01/05/2024] [Indexed: 01/14/2024]
Abstract
BACKGROUND Diffuse-type tenosynovial giant cell tumor (D-TGCT) is a mono-articular, soft-tissue tumor. Although it can behave locally aggressively, D-TGCT is a non-malignant disease. This is the first study describing the natural course of D-TGCT and evaluating active surveillance as possible treatment strategy. METHODS This retrospective, multicenter study included therapy naïve patients with D-TGCT from eight sarcoma centers worldwide between 2000 and 2019. Patients initially managed by active surveillance following their first consultation were eligible. Data regarding the radiological and clinical course and subsequent treatments were collected. RESULTS Sixty-one patients with primary D-TGCT were initially managed by active surveillance. Fifty-nine patients had an MRI performed around first consultation: D-TGCT was located intra-articular in most patients (n = 56; 95 %) and extra-articular in 14 cases (24 %). At baseline, osteoarthritis was observed in 13 patients (22 %) on MRI. Most of the patients' reported symptoms: pain (n = 43; 70 %), swelling (n = 33; 54 %). Eight patients (13 %) were asymptomatic. Follow-up data were available for 58 patients; the median follow-up was 28 months. Twenty-one patients (36 %) had radiological progression after 21 months (median). Eight of 45 patients (18 %) without osteoarthritis at baseline developed osteoarthritis during follow-up. Thirty-seven patients (64 %) did not clinically deteriorate during follow-up. Finally, eighteen patients (31 %) required a subsequent treatment. CONCLUSION Active surveillance can be considered adequate for selected therapy naïve D-TGCT patients. Although follow-up data was limited, almost two-thirds of the patients remained progression-free, and 69 % did not need treatment during the follow-up period. However, one-fifth of patients developed secondary osteoarthritis. Prospective studies on active surveillance are warranted.
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Affiliation(s)
- Geert Spierenburg
- Department of Orthopedic Surgery, Leiden University Medical Center, Leiden, the Netherlands.
| | - Eric L Staals
- Third Orthopaedic Clinic and Traumatology, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Emanuela Palmerini
- Osteooncology, Soft Tissue and Bone Sarcomas, Innovative Therapy Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Robert Lor Randall
- Department of Orthopaedic Surgery, University of California-Davis, Sacramento, CA, USA
| | - Steven W Thorpe
- Department of Orthopaedic Surgery, University of California-Davis, Sacramento, CA, USA
| | - Jay S Wunder
- Division of Orthopaedic Surgery, University Musculoskeletal Oncology Unit, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Peter C Ferguson
- Division of Orthopaedic Surgery, University Musculoskeletal Oncology Unit, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Floortje G M Verspoor
- Department of Orthopedic Surgery, Amsterdam University Medical Centers, Amsterdam, the Netherlands
| | - Matthew T Houdek
- Department of Orthopaedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Nicholas M Bernthal
- Department of Orthopaedic Surgery, University of California-Los Angeles, Los Angeles, CA, USA
| | | | - Hans Gelderblom
- Department of Medical Oncology, Leiden University Medical Center, Leiden, the Netherlands
| | | | - Lizz van der Heijden
- Department of Orthopedic Surgery, Leiden University Medical Center, Leiden, the Netherlands
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Geiger EJ, Jensen AR, Singh AS, Nelson SD, Bernthal NM. Use of neoadjuvant pexidartinib with limb salvage surgery for diffuse tenosynovial giant cell tumor: A case report. J Orthop Sci 2024; 29:458-462. [PMID: 36402606 DOI: 10.1016/j.jos.2022.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/24/2022] [Accepted: 10/27/2022] [Indexed: 11/17/2022]
Affiliation(s)
- Erik J Geiger
- Department of Orthopaedic Surgery, The Rothman Institute at Thomas Jefferson University, Philadelphia, PA, USA.
| | - Andrew R Jensen
- Department of Orthopaedic Surgery, University of California-Los Angeles, Santa Monica, CA, USA
| | - Arun S Singh
- Department of Medicine, Division of Hematology-Oncology, University of California-Los Angeles, Los Angeles, CA, USA
| | - Scott D Nelson
- Departments of Pathology and Orthopaedic Surgery, University of California-Los Angeles, Santa Monica, CA, USA
| | - Nicholas M Bernthal
- Department of Orthopaedic Surgery, University of California-Los Angeles, Santa Monica, CA, USA
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McCabe C, Wright H, Polson K, Wagner AJ. Supporting patients in the transition to the revised pexidartinib dosing regimen: perspectives from the multidisciplinary clinical and allied health professional team. Orphanet J Rare Dis 2023; 18:313. [PMID: 37805596 PMCID: PMC10560410 DOI: 10.1186/s13023-023-02926-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 09/24/2023] [Indexed: 10/09/2023] Open
Abstract
Pexidartinib is a colony-stimulating factor-1 receptor inhibitor approved in the United States for treatment of adult patients with symptomatic tenosynovial giant cell tumor (TGCT) associated with severe morbidity or functional limitations and not amenable to improvement with surgery. Because of the risk of severe and potentially fatal hepatotoxicity, pexidartinib is only available through a Risk Evaluation and Mitigation Strategy (REMS) program. Pexidartinib pharmacokinetics are influenced by the fat content of meals: compared with the fasted state, consuming a high-fat meal with pexidartinib increases pexidartinib absorption by 100%; a low-fat meal increases absorption by approximately 60%. Pexidartinib was initially authorized to be taken at 800 mg/day on an empty stomach; therefore, if this same dose of pexidartinib is taken with food, there is a risk of overexposure and potential toxicity. To reduce the risk of hepatotoxicity and improve patient compliance, pexidartinib has undergone a revised dosing regimen, from 800 mg/day (400 mg twice daily) fasted to 500 mg/day (250 mg twice daily) with a low-fat meal (approximately 11-14 g of total fat). The objective of this report is to educate clinical and allied health professionals on the revised dosing regimen and the importance of patient compliance with a low-fat meal. Healthcare professionals need to understand the rationale for the switch from pexidartinib dosing on an empty stomach to dosing with a low-fat meal and how meal composition and timing influence pharmacokinetics. Finally, we provide guidance for the healthcare team of prescribing providers, nurses, pharmacists, and dietitians who are caring for patients with TGCT on pexidartinib. It is important for healthcare providers to deliver consistent messaging on the low-fat meal requirement and help patients fit pexidartinib into their regular meal schedules. Consulting a dietitian may be helpful for patients, especially those with complex dietary needs. We provide an overview of the roles and responsibilities of each healthcare professional and outline steps to best support patients, including key questions and answers related to the revised dosing regimen. This report provides the information necessary to guide the multidisciplinary team caring for patients with TGCT and to support them through the pexidartinib dosing regimen change.
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Affiliation(s)
- Colleen McCabe
- Department of Pharmaceutical Services, Vanderbilt University Medical Center, Nashville, TN, USA.
| | - Hillary Wright
- Director for Nutrition Counseling, Wellness Center at Boston IVF, Waltham, MA, USA
- Dana-Farber Cancer Institute, Center for Sarcoma and Bone Oncology, Boston, MA, USA
| | - Kathleen Polson
- Dana-Farber Cancer Institute, Center for Sarcoma and Bone Oncology, Boston, MA, USA
| | - Andrew J Wagner
- Dana-Farber Cancer Institute, Center for Sarcoma and Bone Oncology, Boston, MA, USA
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Caldwell TM, Ahn YM, Bulfer SL, Leary CB, Hood MM, Lu WP, Vogeti L, Vogeti S, Kaufman MD, Wise SC, Le Bourdonnec B, Smith BD, Flynn DL. Discovery of vimseltinib (DCC-3014), a highly selective CSF1R switch-control kinase inhibitor, in clinical development for the treatment of Tenosynovial Giant Cell Tumor (TGCT). Bioorg Med Chem Lett 2022; 74:128928. [PMID: 35961460 DOI: 10.1016/j.bmcl.2022.128928] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/27/2022] [Accepted: 08/05/2022] [Indexed: 01/01/2023]
Abstract
Based on knowledge of kinase switch-control inhibition and using a combination of structure-based drug design and standard medicinal chemistry principles, we identified a novel series of dihydropyrimidone-based CSF1R kinase inhibitors displaying exquisite selectivity for CSF1R versus a large panel of kinases and non-kinase protein targets. Starting with lead compound 3, an SAR optimization campaign led to the discovery of vimseltinib (DCC-3014; compound 20) currently undergoing clinical evaluation for the treatment of Tenosynovial Giant Cell Tumor (TGCT), a locally aggressive benign tumor associated with substantial morbidity. 2021 Elsevier ltd. All rights reserved.
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Affiliation(s)
| | - Yu Mi Ahn
- Deciphera Pharmaceuticals, LLC, Waltham, MA 02451, United States
| | - Stacie L Bulfer
- Deciphera Pharmaceuticals, LLC, Waltham, MA 02451, United States
| | - Cynthia B Leary
- Deciphera Pharmaceuticals, LLC, Waltham, MA 02451, United States
| | - Molly M Hood
- Deciphera Pharmaceuticals, LLC, Waltham, MA 02451, United States
| | - Wei-Ping Lu
- Deciphera Pharmaceuticals, LLC, Waltham, MA 02451, United States
| | | | - Subha Vogeti
- Deciphera Pharmaceuticals, LLC, Waltham, MA 02451, United States
| | | | - Scott C Wise
- Deciphera Pharmaceuticals, LLC, Waltham, MA 02451, United States
| | | | - Bryan D Smith
- Deciphera Pharmaceuticals, LLC, Waltham, MA 02451, United States
| | - Daniel L Flynn
- Deciphera Pharmaceuticals, LLC, Waltham, MA 02451, United States.
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7
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Spierenburg G, Grimison P, Chevreau C, Stacchiotti S, Piperno-Neumann S, Le Cesne A, Ferraresi V, Italiano A, Duffaud F, Penel N, Metzger S, Chabaud S, van der Heijden L, Pérol D, van de Sande MAJ, Blay JY, Gelderblom H. Long-term follow-up of nilotinib in patients with advanced tenosynovial giant cell tumours: Long-term follow-up of nilotinib in TGCT. Eur J Cancer 2022; 173:219-228. [PMID: 35932628 DOI: 10.1016/j.ejca.2022.06.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Diffuse-type tenosynovial giant cell tumour (D-TGCT) is a non-malignant but locally aggressive tumour driven by overexpression of colony-stimulating factor-1 (CSF1). CSF1R inhibitors are potential therapeutic strategies for patients not amenable to surgery. We report here the long-term outcome of nilotinib in patients with advanced D-TGCT treated within a phase II prospective international study (ClinicalTrials.gov: NCT01261429). METHODS Patients were enrolled between December 2010-September 2012 at 11 cancer centres. Eligible patients had histologically confirmed D-TGCT, not amenable to surgery. Patients received nilotinib until evidence of progression, toxicity or a maximum of one year. Long-term data were retrospectively collected after the completion of the phase II trial. Patients with nilotinib treatment ≥12 weeks and follow-up ≥12 months were included for long-term analysis. RESULTS Forty-eight of 56 enrolled patients were included. Median treatment duration was 11 months; 31 (65%) patients completed the treatment protocol. After 102 months of follow-up (median; range 12-129), 25 patients (52%) had progression. The median progression-free survival (PFS) was 77 months. The five-year PFS rate was 53%. Fifteen patients (n = 15/46; 33%) experienced clinical worsening after 11 months (median). Twenty-seven patients (58%) received additional treatment, after which eleven patients (n = 11/27; 41%) had a second relapse. Nine patients required a subsequent treatment, primarily other CSF1R inhibitors (n = 6/9; 67%). No unfavourable long-term effects were observed. CONCLUSION This long-term analysis of nilotinib for advanced D-TGCT showed that about half of the patients had progression and underwent additional treatment after 8.5 years follow-up. Contrarily, several patients had ongoing disease control after limited treatment duration, demonstrating the mixed effect of nilotinib.
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Affiliation(s)
- Geert Spierenburg
- Department of Orthopedic Surgery, Leiden University Medical Center, Leiden, Netherlands.
| | - Peter Grimison
- Department of Medical Oncology, Chris O'Brien Lifehouse, Sydney, Australia
| | - Christine Chevreau
- Department of Medical Oncology, Institut Claudius Regaud, Institut Universitaire Du Cander de Toulouse, Toulouse, France
| | - Silvia Stacchiotti
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Sophie Piperno-Neumann
- Department of Medical Oncology, Institut Curie, Paris Sciences et Lettres Research University, Paris, France
| | - Axel Le Cesne
- Department of Cancer Medicine, Gustave Roussy, Villejuif, France
| | - Virginia Ferraresi
- Sarcomas and Rare Tumors Departmental Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Antoine Italiano
- Department of Medical Oncology, Institut Bergonié, Bordeaux, France
| | - Florence Duffaud
- Department of Medical Oncology, Hôpital de La Timone, Aix-Marseille Université, Marseille, France
| | - Nicolas Penel
- Department of Medical Oncology, Center Oscar Lambret, Lille University Lille, France
| | - Severine Metzger
- Department of Clinical Research and Innovation, Léon Bérard Cancer Center, Lyon, France
| | - Sylvie Chabaud
- Department of Clinical Research and Innovation, Léon Bérard Cancer Center, Lyon, France
| | - Lizz van der Heijden
- Department of Orthopedic Surgery, Leiden University Medical Center, Leiden, Netherlands
| | - David Pérol
- Department of Clinical Research and Innovation, Léon Bérard Cancer Center, Lyon, France
| | | | - Jean-Yves Blay
- Department of Medical Oncology, Center Léon Bérard Cancer Center, Lyon, France
| | - Hans Gelderblom
- Department of Medical Oncology, Leiden University Medical Center, Leiden, Netherlands
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8
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Takeuchi A, Tsuchiya H. [Ⅲ. Novel Treatment Targeting CSF1-R for Tenosynovial Giant Cell Tumor]. Gan To Kagaku Ryoho 2022; 49:277-281. [PMID: 35299182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
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9
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Robert M, Farese H, Miossec P. Update on Tenosynovial Giant Cell Tumor, an Inflammatory Arthritis With Neoplastic Features. Front Immunol 2022; 13:820046. [PMID: 35265077 PMCID: PMC8899011 DOI: 10.3389/fimmu.2022.820046] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 02/03/2022] [Indexed: 12/28/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease that leads to joint destruction and bone erosion. Even if many treatments were developed with success in the last decades, some patients fail to respond, and disease chronicity is still a burden. Mechanisms involved in such resistance may include molecular changes in stromal cells. Other explanations can come from observations of tenosynovial giant cell tumor (TGCT), first considered as an inflammatory arthritis, but with unusual neoplastic features. TGCT leads to synovium hypertrophy and hyperplasia with hemosiderin deposition. It affects young adults, resulting in secondary osteoarthritis and increased morbidity. TGCT shows clinical, histological and genetic similarities with RA but affecting a single joint. However, the monoclonality of some synoviocytes, the presence of translocations and rare metastases also suggest a neoplastic disease, with some features common with sarcoma. TGCT is more probably in an intermediate situation between an inflammatory and a neoplastic process, with a main involvement of the proinflammatory cytokine CSF-1/CSF1R signaling axis. The key treatment option is surgery. New treatments, derived from the RA and sarcoma fields, are emerging. The tyrosine kinase inhibitor pexidartinib was recently FDA-approved as the first drug for severe TGCT where surgery is not an option. Options directly targeting the excessive proliferation of synoviocytes are at a preclinical stage.
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Mastboom MJL, Lips W, van Langevelde K, Mifsud M, Ng C, McCarthy CL, Athanasou NA, Gibbons CLMH, van de Sande MAJ. The effect of Imatinib Mesylate in diffuse-type Tenosynovial Giant Cell Tumours on MR imaging and PET-CT. Surg Oncol 2020; 35:261-267. [PMID: 32932224 DOI: 10.1016/j.suronc.2020.08.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 08/19/2020] [Accepted: 08/23/2020] [Indexed: 01/25/2023]
Abstract
INTRODUCTION Recurrence rates remain high after surgical treatment of diffuse-type Tenosynovial Giant Cell Tumour (TGCT). Imatinib Mesylate (IM) blocks Colony Stimulating Factor1 Receptor (CSF1R), the driver mechanism in TGCT. The aim of this study was to determine if IM reduces the tumour metabolic activity evaluated by PET-CT and to compare this response with the response seen on MR imaging. MATERIALS AND METHODS 25 Consecutive patients treated with IM (off label use) for locally advanced (N = 12) or recurrent (N = 13) diffuse-type TGCT were included, 15 male and median age at diagnosis 39 (IQR 31-47) years. The knee was most frequently affected (n = 16; 64%). The effect of IM was assessed pre- and post-IM treatment by comparing MR scans and PET-CT. MR scans were assessed by Tumour Volume Score (TVS), an estimation of the tumour volume as a percentage of the total synovial cavity. PET-CT scans were evaluated based on maximum standardized uptake value (SUV-max). Partial response was defined as more than 50% tumour reduction with TVS and a decrease of at least 30% on SUV-max. RESULTS Median duration of IM treatment was 7.0 (IQR 4.2-11.5) months. Twenty patients (80%) discontinued IM treatment for poor response or intended surgery. Twenty patients experienced an adverse event grade 1-2, three patients grade 3 (creatinine increment, neutropenic sepsis, liver dysfunction). MR assessment of all joints showed 32% (6/19) partial response and 63% (12/19) stable disease, with a mean difference of 12% (P = 0.467; CI -22.4-46.0) TVS between pre- and post-IM and a significant mean difference of 23% (P = 0.021; CI 4.2-21.6) in all knee lesions. PET-CT, all joints, showed a significantly decreased mean difference of 5.3 (P = 0.004; CI 1.9-8.7) SUV-max between pre- and post-IM treatment (58% (11/19) partial response, 37% (7/19) stable disease). No correlation between MR imaging and PET-CT could be appreciated in 15 patients with complete radiological data. CONCLUSION This study confirms the moderate radiological response of IM in diffuse-type TGCT. PET-CT is a valuable additional diagnostic tool to quantify response to tyrosine kinase inhibitor treatment. Its value should be assessed further to validate its efficacy in the objective measurement of biological response in targeted systemic treatment of TGCT.
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Affiliation(s)
- M J L Mastboom
- Orthopaedics Oncology, Leiden University Medical Centre, Leiden, the Netherlands.
| | - W Lips
- Orthopaedics Oncology, Leiden University Medical Centre, Leiden, the Netherlands.
| | - K van Langevelde
- Radiology, Nuffield Orthopaedic Centre, Oxford University Hospitals NHS Trust, Oxford, United Kingdom.
| | - M Mifsud
- Orthopaedic Department, Mater Dei Hospital, Triq Dun Karm, Msida, Malta.
| | - C Ng
- Orthopaedic Department, Mater Dei Hospital, Triq Dun Karm, Msida, Malta.
| | - C L McCarthy
- Radiology, Nuffield Orthopaedic Centre, Oxford University Hospitals NHS Trust, Oxford, United Kingdom.
| | - N A Athanasou
- Histopathology, NDORMS, Nuffield Orthopaedic Centre, Oxford University Hospitals NHS Trust, Oxford, United Kingdom.
| | - C L M H Gibbons
- Orthopaedics Oncology, Nuffield Orthopaedic Centre, Oxford University Hospitals NHS Trust, Oxford, United Kingdom.
| | - M A J van de Sande
- Orthopaedics Oncology, Leiden University Medical Centre, Leiden, the Netherlands.
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11
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Smart K, Bröske A, Rüttinger D, Mueller C, Phipps A, Walz A, Ries C, Baehner M, Cannarile M, Meneses‐Lorente G. PK/PD Mediated Dose Optimization of Emactuzumab, a CSF1R Inhibitor, in Patients With Advanced Solid Tumors and Diffuse-Type Tenosynovial Giant Cell Tumor. Clin Pharmacol Ther 2020; 108:616-624. [PMID: 32575160 PMCID: PMC7589268 DOI: 10.1002/cpt.1964] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 06/04/2020] [Indexed: 01/03/2023]
Abstract
Targeted biological therapies may achieve maximal therapeutic efficacy at doses below the maximum tolerated dose (MTD); therefore, the search for the MTD in clinical studies may not be ideal for these agents. Emactuzumab is an investigational monoclonal antibody that binds to and inhibits the activation of the cell surface colony‐stimulating factor‐1 receptor. Here, we show how modeling target‐mediated drug disposition coupled with pharmacodynamic end points was used to optimize the dose of emactuzumab without defining an MTD. The model could be used to recommend doses across different disease indications. The approach recommended an optimal biological dose of emactuzumab for dosing every 2 weeks (q2w) ≥ 900 mg, approximately three‐fold lower than the highest dose tested clinically. The model predicted that emactuzumab doses ≥ 900 mg q2w would achieve target saturation in excess of 90% over the entire dosing cycle. Subsequently, a dose of 1,000 mg q2w was used in the extension phase of a phase I study of emactuzumab in patients with advanced solid tumors or diffuse‐type tenosynovial giant cell tumor. Clinical data from this study were consistent with model predictions. The model was also used to predict the optimum dose of emactuzumab for use with dosing every 3 weeks, enabling dosing flexibility with respect to comedications. In summary, this work demonstrates the value of quantitative clinical pharmacology approaches to dose selection in oncology as opposed to traditional MTD methods.
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MESH Headings
- Antibodies, Monoclonal, Humanized/administration & dosage
- Antibodies, Monoclonal, Humanized/pharmacokinetics
- Antineoplastic Agents, Immunological/administration & dosage
- Antineoplastic Agents, Immunological/pharmacokinetics
- Clinical Trials, Phase I as Topic
- Drug Administration Schedule
- Drug Dosage Calculations
- Giant Cell Tumor of Tendon Sheath/drug therapy
- Giant Cell Tumor of Tendon Sheath/metabolism
- Giant Cell Tumor of Tendon Sheath/pathology
- Humans
- Models, Biological
- Molecular Targeted Therapy
- Receptors, Granulocyte-Macrophage Colony-Stimulating Factor/antagonists & inhibitors
- Receptors, Granulocyte-Macrophage Colony-Stimulating Factor/metabolism
- Signal Transduction
- Treatment Outcome
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Affiliation(s)
- Kevin Smart
- Roche Innovation Center WelwynWelwyn Garden CityUK
| | | | | | | | - Alex Phipps
- Roche Innovation Center WelwynWelwyn Garden CityUK
| | | | - Carola Ries
- Roche Innovation Center MunichPenzbergGermany
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12
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Tap WD, Gelderblom H, Palmerini E, Desai J, Bauer S, Blay JY, Alcindor T, Ganjoo K, Martín-Broto J, Ryan CW, Thomas DM, Peterfy C, Healey JH, van de Sande M, Gelhorn HL, Shuster DE, Wang Q, Yver A, Hsu HH, Lin PS, Tong-Starksen S, Stacchiotti S, Wagner AJ. Pexidartinib versus placebo for advanced tenosynovial giant cell tumour (ENLIVEN): a randomised phase 3 trial. Lancet 2019; 394:478-487. [PMID: 31229240 PMCID: PMC6860022 DOI: 10.1016/s0140-6736(19)30764-0] [Citation(s) in RCA: 244] [Impact Index Per Article: 48.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 03/13/2019] [Accepted: 03/21/2019] [Indexed: 01/27/2023]
Abstract
BACKGROUND Tenosynovial giant cell tumour (TGCT), a rare, locally aggressive neoplasm, overexpresses colony-stimulating factor 1 (CSF1). Surgery is standard with no approved systemic therapy. We aimed to evaluate pexidartinib, a CSF1 receptor inhibitor, in patients with TGCT to provide them with a viable systemic treatment option, especially in cases that are not amenable to surgical resection. METHODS This phase 3 randomised trial had two parts. Part one was a double-blind study in which patients with symptomatic, advanced TGCT for whom surgery was not recommended were randomly assigned via an integrated web response system (1:1) to the pexidartinib or placebo group. Individuals in the pexidartinib group received a loading dose of 1000 mg pexidartinib per day orally (400 mg morning; 600 mg evening) for the first 2 weeks, followed by 800 mg per day (400 mg twice a day) for 22 weeks. Part two was an open-label study of pexidartinib for all patients. The primary endpoint, assessed in all intention-to-treat patients, was overall response at week 25, and was centrally reviewed by RECIST, version 1.1. Safety was analysed in all patients who received at least one dose of the study drug. This study is registered with ClinicalTrials.gov, number NCT02371369. FINDINGS Between May 11, 2015, and Sept 30, 2016, of 174 patients assessed for eligibility, 120 patients were randomly assigned to, and received, pexidartinib (n=61) or placebo (n=59). There were 11 dropouts in the placebo group and nine in the pexidartinib group. Emergence of mixed or cholestatic hepatotoxicity caused the data monitoring committee to stop enrolment six patients short of target. The proportion of patients who achieved overall response was higher for pexidartinib than placebo at week 25 by RECIST (24 [39%] of 61 vs none of 59; absolute difference 39% [95% CI 27-53]; p<0·0001). Serious adverse events occurred in eight (13%) of 61 patients in the pexidartinib group and one (2%) of 59 patients in the placebo group. Hair colour changes (67%), fatigue (54%), aspartate aminotransferase increase (39%), nausea (38%), alanine aminotransferase increase (28%), and dysgeusia (25%) were the most frequent pexidartinib-associated adverse events. Three patients given pexidartinib had aminotransferase elevations three or more times the upper limit of normal with total bilirubin and alkaline phosphatase two or more times the upper limit of normal indicative of mixed or cholestatic hepatotoxicity, one lasting 7 months and confirmed by biopsy. INTERPRETATION Pexidartinib is the first systemic therapy to show a robust tumour response in TGCT with improved patient symptoms and functional outcomes; mixed or cholestatic hepatotoxicity is an identified risk. Pexidartinib could be considered as a potential treatment for TGCT associated with severe morbidity or functional limitations in cases not amenable to improvement with surgery. FUNDING Daiichi Sankyo.
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Affiliation(s)
- William D Tap
- Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, NY, USA.
| | | | | | - Jayesh Desai
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Sebastian Bauer
- Sarcoma Center, West German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Jean-Yves Blay
- Centre Léon Bérard and Université Claude Bernard, Lyon, France
| | | | | | - Javier Martín-Broto
- Institute of Biomedicine of Sevilla, (IBIS, HUVR, CSIC, Universidad de Sevilla), Sevilla, Spain
| | | | | | | | - John H Healey
- Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, NY, USA
| | | | | | | | - Qiang Wang
- Daiichi Sankyo, Inc, Basking Ridge, NJ, USA
| | | | | | | | | | | | - Andrew J Wagner
- Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
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13
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Ortega Candil A, Rodríguez Rey C, García García-Esquinas M, Cabrera Martín MN, Couto Caro R, Carreras Delgado JL. Co-existence of a giant cell tumour of the tendon sheath and schwannoma in a patient with bilateral breast cancer: A potential cause of false positive findings in 18F-FDG PET/CT studies. Rev Esp Med Nucl Imagen Mol 2016; 35:411-412. [PMID: 27329560 DOI: 10.1016/j.remn.2016.05.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 05/16/2016] [Accepted: 05/18/2016] [Indexed: 11/30/2022]
Affiliation(s)
- A Ortega Candil
- Servicio de Medicina Nuclear, Hospital Clínico San Carlos, Madrid, Spain.
| | - C Rodríguez Rey
- Servicio de Medicina Nuclear, Hospital Clínico San Carlos, Madrid, Spain
| | | | - M N Cabrera Martín
- Servicio de Medicina Nuclear, Hospital Clínico San Carlos, Madrid, Spain
| | - R Couto Caro
- Servicio de Medicina Nuclear, Hospital Clínico San Carlos, Madrid, Spain
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