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1.
Neurol Ther ; 12(5): 1399-1407, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37353720

RESUMEN

In general, individuals who are lesbian, gay, bisexual, transgender, queer or questioning, plus other identities (LGBTQ+) living with multiple sclerosis (MS) have less favorable healthcare experiences and poorer overall health than cisgendered heterosexual individuals. They may experience further challenges in addition to managing their MS, including psychological or emotional problems, and an increased risk of comorbid diseases and substance abuse. Transgender individuals specifically face additional unique challenges, including high rates of mental health distress and effects from long-term exogenous hormone use and gender affirmation surgery. These findings highlight disparities in both quality of care and health outcomes of LGBTQ+ individuals. Unmet needs and drivers of these disparities relate to a lack of inclusivity in healthcare environments, poor communication between healthcare professionals (HCPs) and LGBTQ+ patients, inadequate HCP knowledge of LGBTQ+ health issues, and gaps in research into the impact of sexual orientation and gender identity in MS. Although data are limited, recommendations to improve the experience and care of LGBTQ+ individuals with MS include increasing HCP awareness of the challenges LGBTQ+ individuals face and provision of inclusive care, with the overarching goal for HCPs to be allies to the LGBTQ+ community. Improvements may be achieved through diversity and cultural awareness training of HCPs on sexual orientation and gender identity, and ensuring a friendly, open, and supportive healthcare environment. Use of sensitive and gender-neutral language by HCPs, representation of LGBTQ+ individuals in patient materials, and access to LGBTQ+ MS support groups are also recommended. HCPs should aim to integrate discussion of sexual orientation and gender identity and sexual and mental health into routine assessments and collaborate with other HCPs as needed. By addressing the challenges and unmet needs of LGBTQ+ individuals with MS, this should help resolve disparities in their quality of care and improve their overall health.

2.
Mult Scler ; 27(6): 883-894, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-32716690

RESUMEN

BACKGROUND: Delayed-release dimethyl fumarate (DMF) demonstrates sustained efficacy and safety for relapsing forms of MS. Absolute lymphocyte count (ALC) is reduced initially, then stabilizes on treatment. OBJECTIVE: PROCLAIM, a 96-week, prospective, open-label, phase 3b study, assessed lymphocyte subsets and immunoglobulin (Ig) levels during 48 and 96 weeks (W) of DMF treatment. METHODS: Patients received 240 mg DMF BID. Endpoints: lymphocyte subset count changes (primary); Ig isotypes and ALC changes (secondary); adverse events and relationship between ALC changes and ARR/EDSS (exploratory); and neurofilament assessment (ad hoc). RESULTS: Of 218 patients enrolled, 158 (72%) completed the study. Median ALC decreased 39% from baseline to W96 (BL-W96), stabilizing above the lower limit of normal (baseline: 1.82 × 109/L; W48: 1.06 × 109/L; W96: 1.05 × 109/L). CD4 + and CD8 + T cells correlated highly with ALC from BL-W96 (p < 0.001). Relative to total T cells, naive CD4 + and CD8 + T cells increased, whereas CD4 + and CD8 + central and effector memory T cells decreased. Total IgA, IgG, IgM, and IgG1-4 subclass levels remained stable. Adverse event rates were similar across ALC subgroups. ARR, EDSS, and neurofilament were not correlated with ALCs. CONCLUSION: Lymphocyte decreases with DMF were maintained over treatment, yet immunoglobulins remained stable. No increase in infection incidence was observed in patients with or without lymphopenia. SUPPORT: Biogen.


Asunto(s)
Dimetilfumarato , Esclerosis Múltiple Recurrente-Remitente , Antiinflamatorios/uso terapéutico , Dimetilfumarato/uso terapéutico , Humanos , Inmunidad Humoral , Inmunosupresores/uso terapéutico , Esclerosis Múltiple Recurrente-Remitente/tratamiento farmacológico , Recurrencia Local de Neoplasia , Estudios Prospectivos
3.
Mult Scler Relat Disord ; 45: 102346, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32717684

RESUMEN

BACKGROUND: Injectable disease-modifying therapies (iDMTs) are often used as first-line treatments for relapsing multiple sclerosis. Fingolimod is frequently used following treatment with iDMTs. Whether prior iDMT treatment impacts the effectiveness of subsequent fingolimod therapy is unclear. Here, we assessed switching from iDMTs to fingolimod, and the impact of treatment history on fingolimod escalation using data from the 12-month 'Prospective, Randomized, active-controlled, open-label study to Evaluate patient retention on Fingolimod versus approved first-line disease-modifying thErapies in adults with Relapsing-remitting Multiple Sclerosis' (PREFERMS). The study design and results at the end of randomized treatment (EoRT) in PREFERMS have been published. METHODS: Both treatment-naïve patients and those who had previously received an iDMT were eligible for enrolment in PREFERMS, and one treatment switch was permitted on study. Pre-specified exploratory analyses compared outcomes in those randomized to fingolimod or to an iDMT at end of study (EoS), which included time spent on randomized and on switch treatment. Post hoc exploratory analyses (unadjusted for multiplicity owing to the large number of comparisons) among patients randomized to an iDMT who switched to fingolimod, compared outcomes longitudinally before (EoRT) and after (EoS) switching, and compared outcomes at EoRT and EoS among subgroups stratified by iDMT-treatment history. Outcomes included brain volume, various measures of gadolinium-enhancing [Gd+] lesion counts, annualized relapse rate (ARR), Symbol Digit Modalities Test (SDMT) score, patient-reported treatment satisfaction using the Medication Satisfaction Questionnaire (MSQ) and adverse event (AE) rates. RESULTS: At EoS, 255 of 439 patients randomized to an iDMT had switched to fingolimod and 27 of 436 patients randomized to fingolimod had switched to an iDMT. By EoS, 44.2% of total treatment exposure in the iDMT group was to fingolimod and the mean time spent on fingolimod in this group was 220 days (approximately 7 months). Outcomes in the fingolimod group at EoS (brain volume, changes in Gd+ lesion counts, ARR, oral SDMT score and MSQ score) were similar to those seen at EoRT, but in the iDMT group these outcomes were more favorable at EoS than at EoRT and were similar to rates seen in the fingolimod group. Among patients who switched from iDMT to fingolimod, there were longitudinal improvements in ARR (EoRT, 0.3 [95% confidence interval (CI), 0.2-0.4]; EoS, 0.2 [0.1-0.3]; odds ratio, 0.5 [0.3-0.9]) and in treatment satisfaction (proportion of patients with MSQ > 5; EoRT, 67.4%; EoS, 90.4%; odds ratio, 5.7 [95% CI, 3.4-9.4]) after fingolimod treatment, and changes in brain volume, Gd+ lesion count, and AEs or AEs causing discontinuation were also more favorable at EoS than at EoRT. In all patient groups stratified by iDMT-treatment history, differences in outcomes narrowed or disappeared after fingolimod treatment. CONCLUSION: These analyses indicate that patients in PREFERMS had improved outcomes within months of switching to fingolimod from an iDMT and that improvements occurred irrespective of the number of iDMTs previously administered. These data provide a unique opportunity to explore clinical, radiological and safety outcomes associated with a range of clinically relevant treatment pathways.


Asunto(s)
Clorhidrato de Fingolimod , Esclerosis Múltiple Recurrente-Remitente , Adulto , Clorhidrato de Fingolimod/uso terapéutico , Humanos , Inmunosupresores/uso terapéutico , Imagen por Resonancia Magnética , Esclerosis Múltiple Recurrente-Remitente/diagnóstico por imagen , Esclerosis Múltiple Recurrente-Remitente/tratamiento farmacológico , Satisfacción Personal , Estudios Prospectivos , Resultado del Tratamiento
4.
Mult Scler Relat Disord ; 43: 102158, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32470857

RESUMEN

Multiple sclerosis (MS) is a chronic, immune-mediated, inflammatory disease affecting the white and gray matter of the central nervous system. Several disease modifying therapies (DMTs) have been shown to significantly reduce relapse rates, slow disability worsening, and modify the overall disease course of MS. Decision-making when initiating a DMT should be shared between the patient and physician. Important factors such as prognostic indicators, safety, patient preferences, adherence, and convenience should also be considered. Treatment guidelines recommend switching a DMT when a patient experiences breakthrough disease activity, but also for patients who experience adverse events. Compared with injectable therapies, oral DMTs are often associated with increased treatment adherence and patient satisfaction, due to a less burdensome route of administration and greater tolerability. This review will summarize the available scientific evidence for injectable DMTs and the oral DMT teriflunomide, including considerations for both treatment-naïve patients initiating a DMT and patients switching from an injectable DMT.


Asunto(s)
Crotonatos , Inmunosupresores , Esclerosis Múltiple Recurrente-Remitente , Toluidinas , Crotonatos/uso terapéutico , Humanos , Hidroxibutiratos , Inmunosupresores/uso terapéutico , Esclerosis Múltiple Recurrente-Remitente/tratamiento farmacológico , Nitrilos , Recurrencia , Toluidinas/uso terapéutico
5.
BMC Neurol ; 18(1): 143, 2018 Sep 14.
Artículo en Inglés | MEDLINE | ID: mdl-30217172

RESUMEN

BACKGROUND: In the PRISMS study, interferon beta-1a subcutaneously (IFN ß-1a SC) reduced clinical and radiological disease burden at 2 years in patients with relapsing-remitting multiple sclerosis. The study aimed to characterize efficacy of IFN ß-1a SC 44 µg and 22 µg three times weekly (tiw) at Year 1. METHODS: Exploratory endpoints included annualized relapse rate (ARR), 3-month confirmed disability progression (1-point Expanded Disability Status Scale increase if baseline was < 6.0 [0.5-point if baseline was ≥6.0]), active T2 lesions, and no evidence of disease activity (NEDA; defined as no relapses [subanalyzed by relapse severity], 3-month confirmed progression, or active T2 lesions). Effect of IFN ß-1a SC in prespecified patient subgroups was also assessed. RESULTS: Patients were randomized to IFN ß-1a 22 µg (n = 189), 44 µg (n = 184), or placebo (n = 187). At 1 year, IFN ß-1a SC tiw reduced ARR (p < 0.001), risk of disability progression (p ≤ 0.029), and mean number of active T2 lesions per patients per scan (p < 0.001) versus placebo. Clinical and radiological benefits were seen as early as Month 2 and 3. Outcomes in subgroups were consistent with those in the overall population. More patients treated with IFN ß-1a SC tiw achieved NEDA status, versus placebo, regardless of relapse severity (p ≤ 0.006). CONCLUSION: Clinical, radiological, and NEDA outcomes at Year 1 were consistent with Year 2 results. Treatment efficacy was consistent in pre-specified patient subgroups.


Asunto(s)
Adyuvantes Inmunológicos/uso terapéutico , Interferón beta-1a/uso terapéutico , Esclerosis Múltiple Recurrente-Remitente/tratamiento farmacológico , Adulto , Progresión de la Enfermedad , Femenino , Humanos , Interferón beta/uso terapéutico , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Esclerosis Múltiple/tratamiento farmacológico , Esclerosis Múltiple Recurrente-Remitente/diagnóstico por imagen , Radiografía , Resultado del Tratamiento
6.
Mult Scler Relat Disord ; 25: 50-56, 2018 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-30036854

RESUMEN

BACKGROUND: Suboptimal persistence with injectable disease-modifying therapies (iDMTs; interferon beta-1a/b, glatiramer acetate) is common in patients with relapsing forms of multiple sclerosis (MS), reducing the effectiveness of these agents. Adherence to, and persistence with, an effective therapy is important for patient populations at increased risk of rapid disease progression. African-American individuals with multiple sclerosis may experience a more aggressive disease course than Caucasian patients, with a greater risk of developing ambulatory difficulties and other disabilities, and may also have a diminished response to some disease-modifying therapies compared with patients of other ethnicities. Retention on oral fingolimod and on iDMTs was evaluated in a post hoc analysis of data from African-American patients in the parallel-group, 48-week 'Prospective, Randomized, active-controlled, open-label study to Evaluate patient retention on Fingolimod versus approved first-line disease modifying thErapies in adults with Relapsing-remitting Multiple Sclerosis' (PREFERMS). METHODS: In PREFERMS, patients with relapsing-remitting MS aged 18-65 years with an Expanded Disability Status Scale score ≤6 enrolled at 117 US study sites were treatment-naïve or had received only one iDMT class. Patients were randomized 1:1 (fingolimod 0.5 mg/day:preselected iDMT) using an interactive voice-and-web-response system without blinding, followed up quarterly, and allowed one study-approved treatment switch after 12 weeks, or earlier, for efficacy or safety reasons only. The primary outcome was patient retention on randomized treatment over 48 weeks. In this post hoc analysis of African-American patients in PREFERMS, outcome variables included rate of patient retention on randomized treatment, reasons for discontinuing randomized treatment, patient-reported treatment satisfaction, and safety. Clinical and radiographic outcomes such as annualized relapse rate, brain volume loss, and lesion count changes were also investigated. RESULTS: In PREFERMS, 141 of 875 patients (16.1%) randomized to a study drug were African-American. Analysis of data for the full analysis set of 67 patients receiving fingolimod and 69 receiving iDMTs showed that the retention rate over 48 weeks was significantly higher with fingolimod than with iDMTs (80.6% [n = 54] vs 30.4% [n = 21]; between-group difference: 50.2%; 95% confidence interval 35.8-64.6%; p < 0.0001). The most common treatment switch was from an iDMT to fingolimod for injection-related reasons, and patient satisfaction was greater with fingolimod than with iDMTs. Adverse events were consistent with the respective prescribing information for each treatment. CONCLUSION: In PREFERMS, fingolimod was associated with better treatment retention than iDMTs in African-American patients. Optimal outcomes in the management of multiple sclerosis depend on good persistence with treatment, and this is particularly important in patient populations at increased risk of a rapidly progressing disease course.


Asunto(s)
Negro o Afroamericano , Clorhidrato de Fingolimod/uso terapéutico , Acetato de Glatiramer/uso terapéutico , Inmunosupresores/uso terapéutico , Interferón beta/uso terapéutico , Esclerosis Múltiple/tratamiento farmacológico , Adolescente , Adulto , Anciano , Agresión , Evaluación de la Discapacidad , Progresión de la Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Esclerosis Múltiple/fisiopatología , Esclerosis Múltiple/psicología , Satisfacción del Paciente , Adulto Joven
7.
Ther Adv Neurol Disord ; 11: 1756286418774338, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29844796

RESUMEN

OBJECTIVE: In relapsing-remitting multiple sclerosis (RRMS), suboptimal adherence to injectable disease-modifying therapies (iDMTs; interferon ß-1a/b, glatiramer acetate) is common, reducing their effectiveness. Patient retention on oral fingolimod and iDMTs was evaluated in PREFERMS, a randomized, parallel-group, active-controlled, open-label, 48-week study. METHODS: Patients were included if they had RRMS, were aged 18-65 years and had Expanded Disability Status Scale score up to 6, enrolled at 117 US study sites, were treatment naïve or had received only one iDMT class. Patients were randomized 1:1 (fingolimod 0.5 mg/day; preselected iDMT) by interactive voice-and-web-response system without blinding, followed up quarterly, and allowed one study-approved treatment switch after 12 weeks, or earlier for efficacy or safety reasons. The primary outcome was patient retention on randomized treatment over 48 weeks. Secondary endpoints included patient-reported outcomes, brain volume loss (BVL), and cognitive function. RESULTS: Analysis of 433/436 patients receiving fingolimod and 428/439 receiving iDMTs showed that patient retention rate was significantly higher with fingolimod than with iDMTs [352 (81.3%) versus 125 (29.2%); 95% confidence interval 46.4-57.8%; p < 0.0001]. The most common treatment switch was from iDMT to fingolimod for injection-related reasons. Patient satisfaction was greater and BVL less with fingolimod than with iDMTs, with no difference in cognitive function. Adverse events were consistent with established tolerability profiles for each treatment. CONCLUSIONS: In RRMS, fingolimod was associated with better treatment retention, patient satisfaction and BVL outcomes than iDMTs. Patients may persist with iDMTs, but many may switch treatment if permitted. Treatment satisfaction fosters adherence, a prerequisite for optimal outcomes.

8.
BMC Neurol ; 18(1): 68, 2018 May 11.
Artículo en Inglés | MEDLINE | ID: mdl-29751787

RESUMEN

BACKGROUND: On-treatment magnetic resonance imaging lesions may predict long-term clinical outcomes in patients receiving interferon ß-1a. This study aimed to assess the effect of active T2 and T1 gadolinium-enhancing (Gd+) lesions on relapses and 3-month confirmed Expanded Disability Status Scale (EDSS) progression in the PRISMS clinical trial. METHODS: Exploratory analyses assessed whether active T2 and T1 Gd + lesions at Month 6, or active T2 lesions at Month 12, predicted clinical outcomes over 4 years in PRISMS. RESULTS: Mean active T2 lesion number at Month 6 was significantly lower with interferon beta-1a given subcutaneously (IFN ß-1a SC) 44 µg and 22 µg 3×/week (tiw) than with placebo (p < 0.0001). The presence of ≥4 versus 0 active T2 lesions predicted disability progression at Years 3-4 in the IFN ß-1a SC 22 µg group only (p < 0.05), whereas the presence of ≥2 versus 0-1 active T2 lesions predicted disability progression in the placebo/delayed treatment (DTx) (Years 2-4; p < 0.05) and IFN ß-1a SC 22 µg groups (Years 3-4; p < 0.05). Greater active T2 lesion number at 6 months predicted relapses in the placebo/DTx group only (≥4 vs. 0, Years 1-4; ≥2 vs. 0-1, Years 2-4; p < 0.05), and the presence of T1 Gd + lesions at 6 months predicted disability progression in the IFN ß-1a SC 44 µg group only (Year 1; p < 0.05). The presence of ≥2 versus 0-1 active T2 lesions at 12 months predicted disability progression over 3 and 4 years in the IFN ß-1a SC 44 µg group. CONCLUSION: Active T2 lesions at 6 months predicted clinical outcomes in patients receiving placebo or IFN ß-1a SC 22 µg, but not in those receiving IFN ß-1a SC 44 µg. Active T2 lesions at 12 months may predict outcomes in those receiving IFN ß-1a SC 44 µg and are possibly more suggestive of poor response to therapy than T2 results at 6 months.


Asunto(s)
Adyuvantes Inmunológicos/administración & dosificación , Progresión de la Enfermedad , Interferón beta-1a/administración & dosificación , Imagen por Resonancia Magnética/normas , Esclerosis Múltiple/diagnóstico por imagen , Esclerosis Múltiple/tratamiento farmacológico , Esclerosis Múltiple/fisiopatología , Índice de Severidad de la Enfermedad , Adulto , Femenino , Estudios de Seguimiento , Humanos , Imagen por Resonancia Magnética/métodos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Pronóstico , Resultado del Tratamiento
9.
Mult Scler Relat Disord ; 3(5): 620-8, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26265274

RESUMEN

BACKGROUND: In pivotal phase 3 studies, fingolimod treatment initiation was associated with a transient reduction in heart rate (HR). Atrioventricular (AV) conduction delays, which were typically asymptomatic, were detected in a small minority of patients. OBJECTIVE: We report the first-dose effects of fingolimod in patients who switched from injectable therapies during the Evaluate Patient OutComes (EPOC) study (ClinicalTrials.gov Identifier: NCT01216072). METHODS: This was a phase 4, 6-month, randomized, active-comparator, open-label, multicenter study. It included over 900 fingolimod-treated patients with relapsing multiple sclerosis, with subgroups of individuals who were receiving common concomitant HR-lowering medications or had pre-existing cardiac conditions (PCCs). Vital signs were recorded hourly for 6h post-dose. A 12-lead electrocardiogram was obtained at baseline and at 6h post-dose. RESULTS: A transient decrease in mean HR and blood pressure occurred within 6h of the first fingolimod dose. The incidence of symptomatic bradycardia was low (1%); eight patients reported dizziness and there was one case each of fatigue, palpitations, dyspnea, cardiac discomfort, and gait disturbance. These symptomatic events were typically mild or moderate in severity and all resolved spontaneously, without intervention or fingolimod discontinuation. CONCLUSION: First-dose effects in patients with PCCs and in those receiving concomitant HR-lowering medications were consistent with effects observed in the overall study population and with results from previous clinical trials. The EPOC study provides additional data demonstrating the transient and generally benign nature of fingolimod first-dose effects on HR and AV conduction in a large population that is more representative of patients encountered in routine clinical practice than in the pivotal trials.


Asunto(s)
Sustitución de Medicamentos/métodos , Clorhidrato de Fingolimod/administración & dosificación , Inmunosupresores/administración & dosificación , Esclerosis Múltiple Recurrente-Remitente/diagnóstico , Esclerosis Múltiple Recurrente-Remitente/tratamiento farmacológico , Administración Oral , Canadá , Relación Dosis-Respuesta a Droga , Femenino , Clorhidrato de Fingolimod/efectos adversos , Humanos , Inmunosupresores/efectos adversos , Inyecciones Intravenosas , Masculino , Persona de Mediana Edad , Resultado del Tratamiento , Estados Unidos
10.
J Med Econ ; 16(7): 859-65, 2013 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-23647445

RESUMEN

OBJECTIVE: The study to Evaluate Patient OutComes, Safety, and Tolerability of Fingolimod (EPOC; NCT01216072) aimed to test the hypothesis that therapy change to oral Gilenya (Novartis AG, Stein, Switzerland) (fingolimod) improves patient-reported outcomes compared with standard-of-care disease-modifying therapy (DMT) in patients with relapsing multiple sclerosis; safety and tolerability were also assessed. This communication describes the study rationale and design. METHODS: EPOC is a phase 4, open-label, multi-center study conducted in the US and Canada of patients with relapsing forms of multiple sclerosis who are candidates for therapy change. Therapy change eligibility was determined by the treating physician (US patients) or required an inadequate response to or poor tolerance for at least 1 MS therapy (Canadian patients). Patients were randomly assigned in a 3:1 ratio to 6 months of treatment with once-daily oral fingolimod 0.5 mg or standard-of-care DMTs. The primary study end-point was the change from baseline in treatment satisfaction as determined by the global satisfaction sub-scale of the Treatment Satisfaction Questionnaire for Medication. Secondary end-points included changes from baseline in perceived effectiveness and side-effects, and measures of activities of daily living, fatigue, depression, and quality-of-life. A 3-month open-label fingolimod extension was available for patients randomly assigned to the DMT group who successfully completed all study visits. RESULTS: Enrollment has been completed with 1053 patients; the patient population is generally older and has a longer duration of disease compared with populations from phase 3 studies of fingolimod. LIMITATIONS: Inclusion criteria selected for patients with a sub-optimal experience with a previous DMT, limiting the collection of data on therapy change in patients who were satisfied with their previous DMT. CONCLUSIONS: Results of the EPOC study are anticipated in early 2013 and will inform treatment selection by providing patient-centered data on therapy switch to fingolimod or standard-of-care DMTs. TRIAL REGISTRATION: ClinicalTrials.gov NCT01216072.


Asunto(s)
Inmunosupresores/uso terapéutico , Esclerosis Múltiple Recurrente-Remitente/tratamiento farmacológico , Glicoles de Propileno/uso terapéutico , Calidad de Vida , Esfingosina/análogos & derivados , Canadá , Tolerancia a Medicamentos , Femenino , Clorhidrato de Fingolimod , Humanos , Masculino , Persona de Mediana Edad , Esclerosis Múltiple Recurrente-Remitente/fisiopatología , Atención Dirigida al Paciente , Esfingosina/uso terapéutico , Nivel de Atención , Resultado del Tratamiento , Estados Unidos
11.
BMC Neurol ; 12: 154, 2012 Dec 06.
Artículo en Inglés | MEDLINE | ID: mdl-23216674

RESUMEN

BACKGROUND: In patients with relapsing-remitting multiple sclerosis (RRMS), subcutaneous (sc) interferon (IFN)ß-1a and IFNß-1b have been shown to reduce relapse rates. A formulation of IFNß-1a has been produced without fetal bovine serum and without human serum albumin as an excipient (not currently approved for use in the US). The objectives of this study were to evaluate tolerability, injection-site redness, subject-reported satisfaction with therapy, and clinical safety and efficacy of the serum-free formulation of IFNß-1a versus IFNß-1b in IFNß-treatment-naïve patients with RRMS. The objectives of the extension phase were to evaluate long-term safety and tolerability of IFNß-1a. METHODS: This randomized, parallel-group, open-label study was conducted at 27 clinical sites in the US. Eligible patients aged 18-60 years were randomized to receive either IFNß-1a, titrated to 44 µg sc three times weekly (tiw) (n = 65), or IFNß-1b, titrated to 250 µg sc every other day (n = 64) over 12 weeks. Following this, all patients received IFNß-1a 44 µg tiw for 82-112 weeks. Primary endpoint was mean change in patient-reported pain, as assessed by visual analog scale (VAS) diary pain score (from 0 mm [no pain] to 100 mm [worst possible pain]) at the injection site, from pre-injection to 30 min post-injection over the first 21 full-dose injections. Secondary assessments included proportion of patients pain-free as recorded by VAS diary and the Short-Form McGill Pain questionnaire VAS. RESULTS: A total of 129 patients were included in the intent-to-treat analysis. Mean (standard deviation) change in VAS diary pain score was not significantly different between groups, although numerically lower with IFNß-1a versus IFNß-1b from pre-injection to immediately post-injection (1.46 [2.93] vs. 4.63 [10.57] mm), 10 min post-injection (0.70 [1.89] vs. 1.89 [5.75] mm), and 30 min post-injection (0.67 [2.32] vs. 1.14 [4.94] mm). Proportion of patients pain-free at all time periods post-injection was also not significantly different between groups. Adverse events were consistent with the known safety profiles of these treatments. CONCLUSIONS: In IFNß-treatment-naïve patients with RRMS, both the serum-free formulation of IFNß-1a and IFNß-1b treatments were generally accompanied by low-level injection-site pain and were well tolerated. TRIAL REGISTRATION: ClinicalTrials.gov NCT00428584.


Asunto(s)
Adyuvantes Inmunológicos/administración & dosificación , Interferón beta/administración & dosificación , Esclerosis Múltiple Recurrente-Remitente/tratamiento farmacológico , Dolor/etiología , Adyuvantes Inmunológicos/efectos adversos , Adolescente , Adulto , Esquema de Medicación , Femenino , Humanos , Inyecciones Subcutáneas , Interferón beta-1a , Interferon beta-1b , Interferón beta/efectos adversos , Masculino , Persona de Mediana Edad , Dimensión del Dolor , Resultado del Tratamiento
12.
Expert Opin Drug Deliv ; 8(12): 1543-53, 2011 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-22032264

RESUMEN

BACKGROUND: Patients with multiple sclerosis (MS) often receive long-term injectable therapy, and difficulties associated with self-injection can affect treatment adherence and efficacy. OBJECTIVE: The objective of this study was to evaluate an investigational, ready-to-use, single-use autoinjector for self-injection of subcutaneous (sc) interferon beta-1a (IFNß-1a). METHODS: In this multicenter, open-label, single-arm study, patients with relapsing MS who were receiving IFNß-1a sc 44 µg three times weekly for ≥ 12 weeks continued therapy using a single-use autoinjector and completed a user trial questionnaire at baseline and weeks 6 and 12. The primary endpoint was the proportion of patients rating the autoinjector as easy or very easy to use at week 12. RESULTS: At 12 weeks, 86% of 109 patients included in the intent-to-treat population rated the autoinjector easy or very easy to use (95% confidence interval, 80% - 93%), and the most important perceived benefit was its overall convenience. The majority (74%) of patients reported the device as somewhat or extremely convenient to use, and most (83%) agreed or strongly agreed that the device made injections simple. CONCLUSION: The single-use autoinjector was well received and supported by favorable ratings for simplified injections and convenience. The results suggest that the device may improve overall injection experience in patients with relapsing MS.


Asunto(s)
Inyecciones Subcutáneas/instrumentación , Interferón beta/administración & dosificación , Esclerosis Múltiple Recurrente-Remitente/psicología , Adolescente , Adulto , Anciano , Femenino , Humanos , Inyecciones Subcutáneas/psicología , Interferón beta-1a , Masculino , Persona de Mediana Edad , Esclerosis Múltiple Recurrente-Remitente/tratamiento farmacológico , Satisfacción del Paciente , Autoadministración/psicología , Encuestas y Cuestionarios , Adulto Joven
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