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Comella CL, Jankovic J, Hauser RA, Patel AT, Banach MD, Ehler E, Vitarella D, Rubio RG, Gross TM. Efficacy and Safety of DaxibotulinumtoxinA for Injection in Cervical Dystonia: ASPEN-1 Phase 3 Randomized Controlled Trial. Neurology 2024; 102:e208091. [PMID: 38295339 PMCID: PMC10962918 DOI: 10.1212/wnl.0000000000208091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 11/27/2023] [Indexed: 02/02/2024] Open
Abstract
BACKGROUND AND OBJECTIVES ASPEN-1 was a phase 3, randomized, double-blind, placebo-controlled study to evaluate the efficacy, duration of response, and safety of 2 doses of DaxibotulinumtoxinA for Injection (DAXI), a novel botulinum toxin type A formulation in participants with cervical dystonia (CD). METHODS Adults (aged 18-80 years) with moderate-to-severe CD (Toronto Western Spasmodic Torticollis Rating Scale [TWSTRS] total score ≥20) were enrolled at 60 sites across 9 countries in Europe and North America. Participants were randomized (3:3:1) to single-dose intramuscular DAXI 125U, 250U, or placebo and followed for up to 36 weeks after injection. The primary end point was change from baseline in TWSTRS total score averaged across weeks 4 and 6. Key secondary end points included duration of effect, Clinical and Patient Global Impression of Change (CGIC, PGIC), TWSTRS subscale scores, and safety. Multiplicity-adjusted intent-to-treat hypothesis tests with multiple imputation were performed using ANCOVA and Cochran-Mantel-Haenszel analyses. RESULTS Of 444 individuals screened, 301 were randomized to DAXI 125U (n = 125) or 250U (n = 130) or placebo (n = 46). DAXI 125U and 250U significantly improved the mean TWSTRS total score vs placebo (least squares mean [standard error] difference vs placebo: DAXI 125U, -8.5 [1.93], p < 0.0001; DAXI 250U, -6.6 [1.92], p = 0.0006). The median duration of effect (time from treatment until loss of ≥80% of the peak improvement in average TWSTRS total score achieved at weeks 4 and 6) was 24.0 (95% confidence interval 20.3-29.1) weeks with DAXI 125U and 20.3 (16.7-24.0) weeks with DAXI 250U. Significant improvements were also observed with DAXI in CGIC and PGIC responder rates and TWSTRS subscales. Treatment-related treatment-emergent adverse events (TEAEs) were reported by 29.6% of participants with DAXI 125U, 23.8% with DAXI 250U, and 17.4% with placebo, with injection site pain being the most common overall. The most frequently reported treatment-related TEAEs of interest in DAXI 125U, DAXI 250U, and placebo, respectively, were muscular weakness (4.8%, 2.3%, 0%), musculoskeletal pain (2.4%, 3.1%, 0%), and dysphagia (1.6%, 3.8%, 0%). DISCUSSION This study demonstrated that DAXI, at doses of 125U and 250U, is an effective, safe, long-acting, and well-tolerated treatment for CD. TRIAL REGISTRATION INFORMATION ClinicalTrials.gov identifier (NCT03608397, submitted July 11, 2018) and EU Clinical Trials Register (ClinicalTrialsRegister.eu EudraCT identifier 2018-000446-19, submitted September 13, 2018). First participant enrolled on June 11, 2018. Trial registration was performed in accordance with the Food and Drug Administration Amendments Act (FDAAA 801), which stipulates that the responsible party register an applicable clinical trial not later than 21 calendar days after enrolling the first human participant (42 CFR 11.24). CLASSIFICATION OF EVIDENCE This study provides Class I evidence that in adults with moderate-to-severe idiopathic cervical dystonia, DAXI reduces dystonia more effectively than placebo.
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Affiliation(s)
- Cynthia L Comella
- From the Department of Neurosurgery and Neurological Sciences (C.L.C.), Rush University Medical Center, Chicago, IL; Parkinson's Disease Center and Movement Disorders Clinic (J.J.), Department of Neurology, Baylor College of Medicine, Houston, TX; Department of Neurology (R.A.H.), University of South Florida, Tampa, FL; Kansas City Bone & Joint Clinic (A.T.P.), Overland Park, KS; Department of Neurology (M.D.B.), Jagiellonian University, Krakow, Poland; Department of Neurology (E.E.), Regional Hospital Pardubice, Czech Republic; Revance Therapeutics, Inc (D.V., R.G.R., T.M.G.), Nashville, TN; and Blue Obsidian Consulting, LLC (R.G.R.), Redwood, CA
| | - Joseph Jankovic
- From the Department of Neurosurgery and Neurological Sciences (C.L.C.), Rush University Medical Center, Chicago, IL; Parkinson's Disease Center and Movement Disorders Clinic (J.J.), Department of Neurology, Baylor College of Medicine, Houston, TX; Department of Neurology (R.A.H.), University of South Florida, Tampa, FL; Kansas City Bone & Joint Clinic (A.T.P.), Overland Park, KS; Department of Neurology (M.D.B.), Jagiellonian University, Krakow, Poland; Department of Neurology (E.E.), Regional Hospital Pardubice, Czech Republic; Revance Therapeutics, Inc (D.V., R.G.R., T.M.G.), Nashville, TN; and Blue Obsidian Consulting, LLC (R.G.R.), Redwood, CA
| | - Robert A Hauser
- From the Department of Neurosurgery and Neurological Sciences (C.L.C.), Rush University Medical Center, Chicago, IL; Parkinson's Disease Center and Movement Disorders Clinic (J.J.), Department of Neurology, Baylor College of Medicine, Houston, TX; Department of Neurology (R.A.H.), University of South Florida, Tampa, FL; Kansas City Bone & Joint Clinic (A.T.P.), Overland Park, KS; Department of Neurology (M.D.B.), Jagiellonian University, Krakow, Poland; Department of Neurology (E.E.), Regional Hospital Pardubice, Czech Republic; Revance Therapeutics, Inc (D.V., R.G.R., T.M.G.), Nashville, TN; and Blue Obsidian Consulting, LLC (R.G.R.), Redwood, CA
| | - Atul T Patel
- From the Department of Neurosurgery and Neurological Sciences (C.L.C.), Rush University Medical Center, Chicago, IL; Parkinson's Disease Center and Movement Disorders Clinic (J.J.), Department of Neurology, Baylor College of Medicine, Houston, TX; Department of Neurology (R.A.H.), University of South Florida, Tampa, FL; Kansas City Bone & Joint Clinic (A.T.P.), Overland Park, KS; Department of Neurology (M.D.B.), Jagiellonian University, Krakow, Poland; Department of Neurology (E.E.), Regional Hospital Pardubice, Czech Republic; Revance Therapeutics, Inc (D.V., R.G.R., T.M.G.), Nashville, TN; and Blue Obsidian Consulting, LLC (R.G.R.), Redwood, CA
| | - Marta D Banach
- From the Department of Neurosurgery and Neurological Sciences (C.L.C.), Rush University Medical Center, Chicago, IL; Parkinson's Disease Center and Movement Disorders Clinic (J.J.), Department of Neurology, Baylor College of Medicine, Houston, TX; Department of Neurology (R.A.H.), University of South Florida, Tampa, FL; Kansas City Bone & Joint Clinic (A.T.P.), Overland Park, KS; Department of Neurology (M.D.B.), Jagiellonian University, Krakow, Poland; Department of Neurology (E.E.), Regional Hospital Pardubice, Czech Republic; Revance Therapeutics, Inc (D.V., R.G.R., T.M.G.), Nashville, TN; and Blue Obsidian Consulting, LLC (R.G.R.), Redwood, CA
| | - Edvard Ehler
- From the Department of Neurosurgery and Neurological Sciences (C.L.C.), Rush University Medical Center, Chicago, IL; Parkinson's Disease Center and Movement Disorders Clinic (J.J.), Department of Neurology, Baylor College of Medicine, Houston, TX; Department of Neurology (R.A.H.), University of South Florida, Tampa, FL; Kansas City Bone & Joint Clinic (A.T.P.), Overland Park, KS; Department of Neurology (M.D.B.), Jagiellonian University, Krakow, Poland; Department of Neurology (E.E.), Regional Hospital Pardubice, Czech Republic; Revance Therapeutics, Inc (D.V., R.G.R., T.M.G.), Nashville, TN; and Blue Obsidian Consulting, LLC (R.G.R.), Redwood, CA
| | - Domenico Vitarella
- From the Department of Neurosurgery and Neurological Sciences (C.L.C.), Rush University Medical Center, Chicago, IL; Parkinson's Disease Center and Movement Disorders Clinic (J.J.), Department of Neurology, Baylor College of Medicine, Houston, TX; Department of Neurology (R.A.H.), University of South Florida, Tampa, FL; Kansas City Bone & Joint Clinic (A.T.P.), Overland Park, KS; Department of Neurology (M.D.B.), Jagiellonian University, Krakow, Poland; Department of Neurology (E.E.), Regional Hospital Pardubice, Czech Republic; Revance Therapeutics, Inc (D.V., R.G.R., T.M.G.), Nashville, TN; and Blue Obsidian Consulting, LLC (R.G.R.), Redwood, CA
| | - Roman G Rubio
- From the Department of Neurosurgery and Neurological Sciences (C.L.C.), Rush University Medical Center, Chicago, IL; Parkinson's Disease Center and Movement Disorders Clinic (J.J.), Department of Neurology, Baylor College of Medicine, Houston, TX; Department of Neurology (R.A.H.), University of South Florida, Tampa, FL; Kansas City Bone & Joint Clinic (A.T.P.), Overland Park, KS; Department of Neurology (M.D.B.), Jagiellonian University, Krakow, Poland; Department of Neurology (E.E.), Regional Hospital Pardubice, Czech Republic; Revance Therapeutics, Inc (D.V., R.G.R., T.M.G.), Nashville, TN; and Blue Obsidian Consulting, LLC (R.G.R.), Redwood, CA
| | - Todd M Gross
- From the Department of Neurosurgery and Neurological Sciences (C.L.C.), Rush University Medical Center, Chicago, IL; Parkinson's Disease Center and Movement Disorders Clinic (J.J.), Department of Neurology, Baylor College of Medicine, Houston, TX; Department of Neurology (R.A.H.), University of South Florida, Tampa, FL; Kansas City Bone & Joint Clinic (A.T.P.), Overland Park, KS; Department of Neurology (M.D.B.), Jagiellonian University, Krakow, Poland; Department of Neurology (E.E.), Regional Hospital Pardubice, Czech Republic; Revance Therapeutics, Inc (D.V., R.G.R., T.M.G.), Nashville, TN; and Blue Obsidian Consulting, LLC (R.G.R.), Redwood, CA
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Solish N, Carruthers J, Kaufman J, Rubio RG, Gross TM, Gallagher CJ. Overview of DaxibotulinumtoxinA for Injection: A Novel Formulation of Botulinum Toxin Type A. Drugs 2021; 81:2091-2101. [PMID: 34787840 PMCID: PMC8648634 DOI: 10.1007/s40265-021-01631-w] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2021] [Indexed: 11/29/2022]
Abstract
Botulinum toxin type A (BoNTA) products are widely used for therapeutic and aesthetic indications, but there is a need for longer-lasting treatments that maintain symptom relief between injections and reduce the frequency of re-treatment. DaxibotulinumtoxinA for Injection (DAXI) is a novel BoNTA product containing highly purified 150-kDa core neurotoxin and is the first to be formulated with a proprietary stabilizing excipient peptide (RTP004) instead of human serum albumin. The positively charged RTP004 has been shown to enhance binding of the neurotoxin to neuronal surfaces, which may enhance the likelihood of neurotoxin internalization. DAXI produces robust, extended efficacy across both aesthetic and therapeutic indications. In an extensive glabellar lines clinical program, DAXI showed a high degree of efficacy, a consistent median time to loss of none or mild glabellar line severity of 24 weeks, and median time until return to baseline of up to 28 weeks. In adults with cervical dystonia, DAXI at 125 U and 250 U significantly improved Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS) total scores, with a median duration of efficacy of 24 and 20 weeks, respectively, which compares favorably with the 12–14 weeks’ duration reported for approved BoNTA products. Overall, DAXI was well tolerated, and the consistent extended duration of effect suggests that DAXI has the potential to improve the management of both aesthetic and therapeutic conditions. Botulinum toxin is used to block the nerve signals that cause muscles to contract. Products containing botulinum toxin are commonly given by injection to treat muscle spasms (such as cervical dystonia, a painful condition where the neck muscles contract involuntarily) and for cosmetic treatment of frown lines. However, the effects of the currently approved botulinum toxin products typically wear off about 3–4 months after injection and so the injections must be repeated regularly. A new product called DAXI (DaxibotulinumtoxinA for Injection) has been developed. In this product, the botulinum toxin is formulated with a unique protein (called RTP004) that has been designed to help deliver the botulinum toxin to the nerve cells. Research suggests that the RTP004 protein in DAXI adheres the botulinum toxin to the nerves close to the injection site, potentially making its effect last longer. To date, DAXI has been studied in over 3800 patients. The studies have shown that DAXI is effective for treating neck spasms (cervical dystonia) and for reducing the appearance of frown lines. Importantly, the effects of DAXI lasted up to 6 months, which is longer than seen with other botulinum toxin products. The side effects seen with DAXI are consistent in nature and frequency with those seen with other botulinum toxin products. These findings suggest that DAXI can improve both medical and cosmetic treatments due to its longer-lasting effect.
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Affiliation(s)
| | - Jean Carruthers
- University of British Columbia and Jean Carruthers Cosmetic, Vancouver, BC, Canada
| | - Joely Kaufman
- Skin Associates of South Florida, Coral Gables, FL, USA
| | - Roman G Rubio
- Revance Therapeutics, Inc., 7555 Gateway Boulevard, Newark, CA, 94560, USA
| | - Todd M Gross
- Revance Therapeutics, Inc., 7555 Gateway Boulevard, Newark, CA, 94560, USA
| | - Conor J Gallagher
- Revance Therapeutics, Inc., 7555 Gateway Boulevard, Newark, CA, 94560, USA.
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Samotus O, Lee J, Jog M. Personalized botulinum toxin type A therapy for cervical dystonia based on kinematic guidance. J Neurol 2018; 265:1269-1278. [PMID: 29557988 DOI: 10.1007/s00415-018-8819-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 02/28/2018] [Accepted: 03/02/2018] [Indexed: 12/28/2022]
Abstract
BACKGROUND Botulinum toxin type A (BoNT-A) injections is the accepted first-line therapy for cervical dystonia (CD), however, numerous patients discontinue treatment early due to perceived sub-optimal relief. To improve BoNT-A therapy for CD, proper assessment of neck motion and selection of relevant muscles and dosing must be met. Kinematic technology may improve treatment outcomes by guiding physicians to better tailor muscle selection and BoNT-A dosing for CD therapy. METHODS 28 CD participants were placed into either group: expert injector determined injection patterns by visual assessment ("vb") versus injection patterns based on kinematics interpreted by an expert injector ("kb"). Injections occurred at weeks 0, 16 and 32 with follow-ups at weeks 6, 22 and 38. Kinematics utilized four sensors to capture the severity of multiaxial, static neck posturing (e.g., torticollis) and dynamic, spasmodic/tremor movements while participants were seated. Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS) score changes were evaluated over 38 weeks. RESULTS For the "kb" participants, there was a significant 28.8% (- 11.25 points) reduction in TWSTRS total score at week 6, as well as significant reduction in severity and disability TWSTRS sub-scores (parts I and II) with maintained improvement at subsequent visits. As for the "vb" participants had a significant reduction in total TWSTRS score by 28.5% (- 9.84 points) after week 22. Disability score for the "vb" group trended towards improvement over 38 weeks. CONCLUSION Clinical judgement guided by kinematic analysis of CD biomechanics can result in faster optimal muscle selections and minimize use of higher BoNT-A doses as compared to visual determination, thereby achieving comparable and potentially better treatment outcomes.
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Affiliation(s)
- Olivia Samotus
- Department of Clinical Neurological Sciences, London Health Sciences Centre, Lawson Health Research Institute, 339 Windermere Road, A10-026, London, ON, N6A 5A5, Canada
- Schulich School of Medicine and Dentistry, Western University, 1151 Richmond Street, London, ON, N6A 3K7, Canada
| | - Jack Lee
- Department of Clinical Neurological Sciences, London Health Sciences Centre, Lawson Health Research Institute, 339 Windermere Road, A10-026, London, ON, N6A 5A5, Canada
| | - Mandar Jog
- Department of Clinical Neurological Sciences, London Health Sciences Centre, Lawson Health Research Institute, 339 Windermere Road, A10-026, London, ON, N6A 5A5, Canada.
- Schulich School of Medicine and Dentistry, Western University, 1151 Richmond Street, London, ON, N6A 3K7, Canada.
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Patterson A, Almeida L, Hess CW, Martinez-Ramirez D, Okun MS, Rodriguez RL, Rundle-Gonzalez V, Wagle Shukla A, Malaty IA. Occurrence of Dysphagia Following Botulinum Toxin Injection in Parkinsonism-related Cervical Dystonia: A Retrospective Study. TREMOR AND OTHER HYPERKINETIC MOVEMENTS (NEW YORK, N.Y.) 2016; 6:379. [PMID: 27830106 PMCID: PMC5099978 DOI: 10.7916/d8gb24c5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 10/17/2016] [Indexed: 12/01/2022]
Abstract
Background The aim was to compare the occurrence of post-injection dysphagia in parkinsonism-related cervical dystonia (PRCD) versus cervical dystonia (CD) of other etiologies (non-PRCD). A secondary objective was to explore potential clinical differences between PRCD and non-PRCD and their respective responses to botulinum toxin (BoNT). Methods A cross-sectional chart review was carried out of patients treated for CD with Onabotulinumtoxin A at the University of Florida. We collected demographic information, dose of BoNT injected, patient-reported presence of dysphagia as a side effect, patient-perceived duration of benefit and efficacy according to the Clinical Global Impression Scale (CGIS). Results Of the 144 patients included, 24 patients were diagnosed with PRCD and 120 were diagnosed as non-PRCD. Data analysis showed no significant differences in number of weeks of benefit from BoNT (PRCD 9.1±3.7 versus non-PRCD 9.4±3.7 weeks, p = 0.830), BoNT dosage (PRCD 235.0±95.6 versus non-PRCD 263.7±101.3 units, p = 0.181), median CGIS score (median = 2 or “much improved” for both groups, p = 0.88), or the presence of dysphagia after BoNT (PRCD 17% versus non-PRCD 19 %, p = 0.753, n = 132). In a subgroup analysis of the non-PRCD group, patients who experienced dysphagia were older than those who did not (63.9±8.9 years versus 58.1±14.4 years, p = 0.02). Discussion Despite an increased baseline risk of dysphagia in patients with PRCD, BoNT appears to be equally safe and equally beneficial in PRCD and non-PRCD patients.
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