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Martin MU, Frevert J, Tay CM. Complexing Protein-Free Botulinum Neurotoxin A Formulations: Implications of Excipients for Immunogenicity. Toxins (Basel) 2024; 16:101. [PMID: 38393178 PMCID: PMC10892905 DOI: 10.3390/toxins16020101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/05/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
The formation of neutralizing antibodies is a growing concern in the use of botulinum neurotoxin A (BoNT/A) as it may result in secondary treatment failure. Differences in the immunogenicity of BoNT/A formulations have been attributed to the presence of pharmacologically unnecessary bacterial components. Reportedly, the rate of antibody-mediated secondary non-response is lowest in complexing protein-free (CF) IncobotulinumtoxinA (INCO). Here, the published data and literature on the composition and properties of the three commercially available CF-BoNT/A formulations, namely, INCO, Coretox® (CORE), and DaxibotulinumtoxinA (DAXI), are reviewed to elucidate the implications for their potential immunogenicity. While all three BoNT/A formulations are free of complexing proteins and contain the core BoNT/A molecule as the active pharmaceutical ingredient, they differ in their production protocols and excipients, which may affect their immunogenicity. INCO contains only two immunologically inconspicuous excipients, namely, human serum albumin and sucrose, and has demonstrated low immunogenicity in daily practice and clinical studies for more than ten years. DAXI contains four excipients, namely, L-histidine, trehalosedihydrate, polysorbate 20, and the highly charged RTP004 peptide, of which the latter two may increase the immunogenicity of BoNT/A by introducing neo-epitopes. In early clinical studies with DAXI, antibodies against BoNT/A and RTP004 were found at low frequencies; however, the follow-up period was critically short, with a maximum of three injections. CORE contains four excipients: L-methionine, sucrose, NaCl, and polysorbate 20. Presently, no data are available on the immunogenicity of CORE in human beings. It remains to be seen whether all three CF BoNT/A formulations demonstrate the same low immunogenicity in patients over a long period of time.
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Sconza C, Leonardi G, Carfì C, Kon E, Respizzi S, Scaturro D, Letizia Mauro G, Massazza G, Di Matteo B. Intra-Articular Injection of Botulinum Toxin for the Treatment of Knee Osteoarthritis: A Systematic Review of Randomized Controlled Trials. Int J Mol Sci 2023; 24:ijms24021486. [PMID: 36674999 PMCID: PMC9863806 DOI: 10.3390/ijms24021486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/18/2022] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
The purpose of the present paper was to review the available evidence on intra-articular botulinum toxin (BTX) injection in the treatment of knee osteoarthritis and to compare it to other conservative treatment options. A systematic review of the literature was performed on the PubMed, Scopus, Cochrane Library, Web of Science, Pedro and Research Gate databases with the following inclusion criteria: (1) randomized controlled trials (RCTs), (2) written in the English language, and (3) published on indexed journals in the last 20 years (2001-2021) dealing with the use of BTX intra-articular injection for the treatment of knee OA. The risk of bias was assessed using the Cochrane Risk of Bias tool for RCTs. Nine studies involving 811 patients in total were included. Patients in the control groups received different treatments: conventional physiotherapy, hyaluronic acid injection or prolotherapy or a combination thereof in 5 studies, steroid infiltrative therapy (triamcinolone) in 1 study, placebo in 2, and local anesthetic treatment in 1 study. Looking at the quality of the available literature, two of the included studies reached "Good quality" standard, three were ranked as "Fair", and the rest were considered "Poor". No major complications or serious adverse events were reported following intra-articular BTX, which provided encouraging pain relief, improved motor function, and quality of life. Based on the available data, no clear indication emerged from the comparison of BTX with other established treatments for knee OA. The analysis of the available RCTs on BTX intra-articular injection for the treatment of knee OA revealed modest methodological quality. However, based on the data retrieved, botulinum toxin has been proven to provide good short-term outcomes, especially in patients with pain sensitization, by modulating neurotransmitter release, peripheral nociceptive transduction, and acting on the control of chronic pain from central sensitization.
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Affiliation(s)
- Cristiano Sconza
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20072 Milan, Italy
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
| | - Giulia Leonardi
- U.O.C. of Physical and Rehabilitation Medicine and Sports Medicine, Policlinico Universitario “G. Martino”, 98124 Messina, Italy
| | - Carla Carfì
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20072 Milan, Italy
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
| | - Elizaveta Kon
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20072 Milan, Italy
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
- Correspondence: ; Tel.: +39-028-224-5425; Fax: +39-028-224-4600
| | - Stefano Respizzi
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20072 Milan, Italy
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
| | - Dalila Scaturro
- Department of Surgical, Oncological and Stomatological Disciplines, University of Palermo, Via del Vespro, 129, 90127 Palermo, Italy
| | - Giulia Letizia Mauro
- Department of Surgical, Oncological and Stomatological Disciplines, University of Palermo, Via del Vespro, 129, 90127 Palermo, Italy
| | - Giuseppe Massazza
- Division of Physical Medicine and Rehabilitation, Department of Surgical Sciences, University of Turin, 10124 Turin, Italy
| | - Berardo Di Matteo
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20072 Milan, Italy
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy
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Treatment of acute dysmenorrhoea and pelvic pain syndrome of uterine origin with myometrial botulinum toxin injections under hysteroscopy: A pilot study. J Gynecol Obstet Hum Reprod 2020; 50:101972. [PMID: 33186771 DOI: 10.1016/j.jogoh.2020.101972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 10/29/2020] [Accepted: 11/04/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Acute dysmenorrhoea in women which has been shown to be anatomically negative for endometriosis is a very common condition. It is frequently associated with Chronic Pelvic Pain (CPP) from uterine origin, including painful uterine contractions and deep dyspareunia. We call this association Painful Uterine Syndrome (PUS). SEARCH STRATEGY In these women in failure of the usual treatments, we proposed a new treatment, with Uterine Toxin Botulinic injections (BTX) under hysteroscopy, as a compassionate option, among women in severe pain and therapeutic failure. Indeed, increased uterine contractility has been confirmed using cine magnetic resonance imaging in patients with acute dysmenorrhea and PUS. These findings, associated with the hypothesis of a possible uterine sensitization on the same model as irritable bowel syndrome (IBS) or painful bladder syndrome (PBS), led to the application of botulinum toxin (BTX) injections under hysteroscopy of the uterine myometrium in this indication. MATERIAL AND METHODS In 2018, we conducted an open-label non comparative study, on 30 patients, with severe dysmenorrhea and PUS in therapeutic failure situation. All women had failure of usual treatments, with painkillers, anti-inflammatory drugs, contraceptive pill, menstrual suppressant therapy and a negative MRI and laparoscopy. The BTX units (200 IU of Incobotulinum-toxin A) were evenly distributed in the anterior and posterior myometrial wall under hysteroscopic control. Patients were reviewed between 8 and 12 weeks after BTX injections and then, at 6 months. MAIN RESULTS Median VAS scores were significantly improved at 8-12 weeks follow up for dysmenorrhoea, deep dyspareunia, and pelvic pain outside of menstruation. Quality of life scores all improved dramatically. No major side effect has been reported in this pilot study. At 6 months, 12 patients (40 %), were given new injections for pain reccurence. But 14 patients (47 %), were still improved and did not require repeat injection at that time. 4 patients, were improvement was not significant, did not ask for repat BTX injections. These patients were all positive for Pelvic Sensitization criteria. CONCLUSIONS Uterine BTX injection could be a very interesting therapeutic option in women with acute dysmenorrheoa and PUS in therapeutic failure. Only long-term randomised studies will be able to confirm that BTX injections are useful as a treatment for this condition. The randomised long-term study, Uteroxine, will shortly release its results.
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Isner-Horobeti ME, Muff G, Lonsdorfer-Wolf E, Deffinis C, Masat J, Favret F, Dufour SP, Lecocq J. Use of botulinum toxin type A in symptomatic accessory soleus muscle: first five cases. Scand J Med Sci Sports 2016; 26:1373-1378. [PMID: 26627136 DOI: 10.1111/sms.12616] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2015] [Indexed: 12/14/2022]
Abstract
Symptomatic accessory soleus muscle (ASM) can cause exercise-induced leg pain due to local nerve/vascular compression, muscle spasm, or local compartment syndrome. As intramuscular injections of botulinum toxin type A (BTX-A) can reduce muscle tone and mass, we investigated whether local BTX-A injections relieve the pain associated with symptomatic ASM. We describe five patients presenting peri/retromalleolar exertional pain and a contractile muscle mass in the painful region. Com-pression neuropathy was ruled out by electromyo-graphic analysis of the lower limb muscles. Doppler ultrasonography was normal, excluding a local vascular compression. ASM was confirmed by magnetic resonance imaging. After a treadmill stress test, abnormal intramuscular pressure values in the ASM, confirmed the diagnosis of compartment syndrome only in one patient. All five patients received BTX-A injections in two points of the ASM. The treatment efficacy was evaluated based on the disappearance of exercise-induced pain and the resumption of normal physical and sports activities. After BTX-A injection, exertional pain disappeared and all five patients resumed their normal level of physical and sports performances. Neither side effects nor motor deficits were observed. BTX-A is well tolerated in patients with ASM and could be used as a new conservative therapeutic strategy for the treatment of symptomatic ASM before surgery.
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Affiliation(s)
- M-E Isner-Horobeti
- Physical and Rehabilitation Medicine Department, Clémenceau University Institute of Rehabilitation, Strasbourg University, Strasbourg, France. .,Strasbourg Translational Medicine Federation (FMTS), EA 3072 "Mitochondria, oxidative stress and muscle protection", Strasbourg, France.
| | - G Muff
- Physical and Rehabilitation Medicine Department, Clémenceau University Institute of Rehabilitation, Strasbourg University, Strasbourg, France.,Strasbourg Translational Medicine Federation (FMTS), EA 3072 "Mitochondria, oxidative stress and muscle protection", Strasbourg, France
| | - E Lonsdorfer-Wolf
- Strasbourg Translational Medicine Federation (FMTS), EA 3072 "Mitochondria, oxidative stress and muscle protection", Strasbourg, France.,Physiology Institute, Medicine Faculty and Hospital, University Hospital, Strasbourg University, Strasbourg, France
| | - C Deffinis
- Physiology Institute, Medicine Faculty and Hospital, University Hospital, Strasbourg University, Strasbourg, France
| | - J Masat
- Strasbourg Translational Medicine Federation (FMTS), EA 3072 "Mitochondria, oxidative stress and muscle protection", Strasbourg, France.,Physiology Institute, Medicine Faculty and Hospital, University Hospital, Strasbourg University, Strasbourg, France
| | - F Favret
- Strasbourg Translational Medicine Federation (FMTS), EA 3072 "Mitochondria, oxidative stress and muscle protection", Strasbourg, France.,Faculty of Sports Sciences, Strasbourg University, Strasbourg, France
| | - S P Dufour
- Strasbourg Translational Medicine Federation (FMTS), EA 3072 "Mitochondria, oxidative stress and muscle protection", Strasbourg, France.,Faculty of Sports Sciences, Strasbourg University, Strasbourg, France
| | - J Lecocq
- Strasbourg Translational Medicine Federation (FMTS), EA 3072 "Mitochondria, oxidative stress and muscle protection", Strasbourg, France.,Physiology Institute, Medicine Faculty and Hospital, University Hospital, Strasbourg University, Strasbourg, France
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ISNER-HOROBETI MARIEEVE, MUFF GUILLAUME, MASAT JULIEN, DAUSSIN JEANLUC, DUFOUR STEPHANEP, LECOCQ JEHAN. Botulinum Toxin as a Treatment for Functional Popliteal Artery Entrapment Syndrome. Med Sci Sports Exerc 2015; 47:1124-7. [DOI: 10.1249/mss.0000000000000538] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Pfrieger FW, Reber M. [Cellular communication between neurons and glial cells: an overview]. Med Sci (Paris) 2013; 29:142-4. [PMID: 23452598 DOI: 10.1051/medsci/2013292009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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