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1.
Innov Clin Neurosci ; 21(4-6): 11-13, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38938532

RESUMEN

Stimulants are the first-line pharmacological treatment for attention deficit hyperactivity disorder (ADHD). We present the unique case of a patient who developed a chewing compulsion when taking mixed amphetamine salts (MAS). A 32-year-old female patient with a past medical history of gastroesophageal reflux disease (GERD), gastroparesis, and migraines was seen for initial psychiatric assessment due to concerns for irritability. She was diagnosed with post-traumatic stress disorder (PTSD); generalized anxiety disorder; ADHD, inattentive type; and unspecified bipolar disorder. Lamotrigine was started and titrated to 25mg twice per day, with improved mood stability. MAS immediate-release (IR) was started at 2.5mg and titrated to 5mg daily for ADHD. She then experienced an uncontrollable urge to chew, finding relief when chewing on a child's teething necklace, which provided satisfaction and a reduction in anxiety. She denied jaw tightness or teeth grinding. The dose of MAS IR was reduced to 2.5mg daily with improvement in symptoms and later increased again to 5mg daily, which she was then able to tolerate. Stereotyped biting behaviors have been observed in rats with the use of amphetamines, and the onset of compulsive behavior has emerged in children with the use of dextroamphetamine. However, this is the first known case of compulsive chewing or biting movements reported in humans with MAS use. This case highlights the need to assess patients for adverse events, such as compulsive biting and chewing movements or other oral facial stereotypies, after commencement of stimulants, including MAS.

2.
J Atten Disord ; 28(5): 810-819, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38214178

RESUMEN

OBJECTIVE: To examine the effects of triple beaded mixed amphetamine salts (TB MAS) on ADHD and executive dysfunction symptoms throughout the day in adults with DSM-5 ADHD. METHOD: This was a 6 week, single-blind, placebo-lead in trial of TB MAS (12.5-37.5 mg/day); all participants received 2 weeks of single-blind placebo); one individual was a placebo responder and was discontinued. One of these 18 dropped after 1 week on 12.5 mg/day, while all others completed the trial and received 37.5 mg/day TB MAS. RESULTS: There were significant effects of TB MAS on all clinical measures, including investigator overall symptoms (AISRS); self-report overall (ASRS), time-sensitive ADHD (TASS) scores throughout the day, impairment (CGI) and executive function scores (BRIEF-A). TB MAS was generally well tolerated. CONCLUSIONS: This study extends prior findings of TB MAS to adults with DSM-5 ADHD; it further re-validates findings of efficacy of TB MAS throughout the day.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Estimulantes del Sistema Nervioso Central , Adulto , Humanos , Anfetamina/uso terapéutico , Trastorno por Déficit de Atención con Hiperactividad/diagnóstico , Trastorno por Déficit de Atención con Hiperactividad/tratamiento farmacológico , Estimulantes del Sistema Nervioso Central/uso terapéutico , Sales (Química)/uso terapéutico , Método Simple Ciego , Resultado del Tratamiento
3.
Pharmacoepidemiol Drug Saf ; 32(10): 1178-1183, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37345505

RESUMEN

PURPOSE: Immediate-release forms of generic mixed amphetamine salts (MAS) have been the subject of passive surveillance reports signaling lack of effectiveness. We examined switching patterns that might suggest whether long-term users of specific MAS are more likely to switch away or switch back after use of the MAS of interest in the FDA's Sentinel Distributed Database. METHODS: We required at least 60-day continuous supply of selected MAS grouped by Abbreviated New Drug Application (ANDA) to describe patterns of switching away from and to generics approved under the ANDAs of interest among individuals ages 15-64 years with attention deficit hyperactivity disorder or narcolepsy during 2013-2019. RESULTS: We observed the greatest number of treatment episodes for ANDA 040422 (n = 525 771), followed by ANDA 202424 (n = 181 693), ANDA 040439 (n = 62 363), ANDA 040440 (n = 21 143), and ANDA 040480 (n = 8792). Of those with switches away from their original ANDA, episodes initiated on generic products under ANDA 040422 (48.6%) and ANDA 202424 (43.0%) were most likely to switch back, while those initiated on generic product under ANDA 040480 were least likely (24.1%). Of those episodes with switches to a generic under an ANDA of interest, about one-third (range 27.1% to 37.0%) switched back to the same product. These switches back had a median time to switch of about 30 days. CONCLUSIONS: These descriptive analyses, although subject to limitations, did not suggest increased switching away or switching back after use of the generics of interest. Continued post-marketing surveillance is warranted.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Narcolepsia , Humanos , Estados Unidos/epidemiología , Anfetamina/uso terapéutico , Sales (Química)/uso terapéutico , Medicaid , Trastorno por Déficit de Atención con Hiperactividad/tratamiento farmacológico , Medicamentos Genéricos/uso terapéutico
4.
J Child Adolesc Psychopharmacol ; 30(9): 549-557, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-33185468

RESUMEN

Objectives: In a previous pivotal study of children and adolescents (aged 6-17 years) with attention-deficit/hyperactivity disorder (ADHD), dose-optimized SHP465 mixed amphetamine salts (MAS) extended-release (12.5-25 mg once daily) was superior to placebo in reducing ADHD symptoms. This study evaluated the efficacy, tolerability, and safety of 6.25 mg SHP465 MAS once daily (one-half the lowest approved dose for adolescents and adults) versus placebo in children aged 6-12 years with ADHD. Methods: Children (aged 6-12 years) with Diagnostic and Statistical Manual of Mental Disorders, Fifth edition-defined ADHD; baseline ADHD-Rating Scale, Fifth Edition, Child, Home Version total scores (ADHD-RS-5-HV-TS) ≥28; and baseline Clinical Global Impressions-Severity scores ≥4 were eligible. Participants received 6.25 mg SHP465 MAS once daily or placebo for 4 weeks. The primary (ADHD-RS-5-HV-TS change from baseline at week 4) and key secondary (Clinical Global Impressions-Improvement [CGI-I] score at week 4) efficacy end points were assessed using linear mixed-effects models for repeated measures. Safety and tolerability assessments included treatment-emergent adverse events (TEAEs) and vital sign changes. Results: Of 89 randomized participants, 83 completed the study (placebo, n = 41; SHP465 MAS, n = 42). At week 4, the least squares mean (95% confidence interval) treatment differences (SHP465 MAS-placebo) were not statistically significant for ADHD-RS-5-HV-TS change (-1.9 [-6.8 to 3.1], p = 0.451; effect size [ES] = 0.17) or CGI-I score (-0.1 [-0.5 to 0.3], nominal p = 0.597; ES = 0.12). The percentage of participants reporting TEAEs was 16.3% with placebo and 24.4% with SHP465 MAS. The most frequently reported TEAEs (placebo; SHP465 MAS) were headache (7.0%; 4.4%) and decreased appetite (4.7%; 2.2%). Minimal increases in blood pressure were observed with SHP465 MAS at the final on-treatment assessment. Conclusions: SHP465 MAS 6.25 mg once daily (one-half the lowest dose approved for adolescents and adults) was well tolerated in children aged 6-12 years but was not superior to placebo in reducing ADHD symptoms, suggesting that this dose of SHP465 MAS was subtherapeutic in this age group. The Clinical Trial Registration number: NCT03325881.


Asunto(s)
Anfetamina/uso terapéutico , Trastorno por Déficit de Atención con Hiperactividad/tratamiento farmacológico , Estimulantes del Sistema Nervioso Central/uso terapéutico , Preparaciones de Acción Retardada/uso terapéutico , Sales (Química)/uso terapéutico , Resultado del Tratamiento , Niño , Método Doble Ciego , Femenino , Cefalea/etiología , Humanos , Masculino
5.
Contemp Clin Trials ; 98: 106187, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-33086160

RESUMEN

BACKGROUND/AIMS: Cocaine use disorder (CUD) persists as a major public health problem in the United States. Response to evidence-based behavioral treatment has been shown to be predicted by dopaminergic dysfunction. Amphetamine formulations modulate dopaminergic systems and are one of the few agents with positive clinical findings but are associated with unique risks. We aimed to find a model for determining the most appropriate patients for treatment with mixed amphetamine salts-extended-release (MAS-ER) for CUD using an adaptive trial design. METHODS: We are enrolling treatment-seeking adults ages 18-60 years. All eligible participants receive bi-weekly individual counseling augmented with a computer-based intervention based on the community reinforcement approach with contingency management (CRA + CM) for 4 weeks. Participants who fail to achieve abstinence are additionally randomly assigned to 10 weeks of either MAS-ER, titrated up to 80 mg daily, or placebo. All participants complete a follow-up assessment after 12 weeks. RESULTS: Frequency and amount of cocaine use, cravings, retention, and quality of life will be compared between groups. The primary outcome will be having at least 3 weeks of urine toxicology-confirmed self-reported abstinence. Analyses will also be conducted to identify variables that may help identify who is more or less likely respond to the behavioral intervention during the first 4-weeks of treatment. CONCLUSIONS: This trial more closely mimics a personalized medicine approach that is often used in clinical practice. It will help us understand who may be appropriate for psychostimulant therapy as an enhancement to evidence-based behavioral interventions, while limiting exposure to those who would respond to a psychosocial intervention alone. ClinicalTrials.gov Identifier: NCT01986075.


Asunto(s)
Cocaína , Sales (Química) , Adolescente , Adulto , Anfetamina , Ensayos Clínicos como Asunto , Humanos , Persona de Mediana Edad , Calidad de Vida , Resultado del Tratamiento , Adulto Joven
6.
J Child Adolesc Psychopharmacol ; 30(7): 427-438, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32423239

RESUMEN

Objectives: In two studies of adult attention-deficit/hyperactivity disorder (ADHD), SHP465 mixed amphetamine salts (MAS) extended-release significantly reduced ADHD-Rating Scale, 4th Edition total score (ADHD-RS-IV-TS) versus placebo (PBO). This report describes post hoc analyses of SHP465 MAS treatment response and remission rates from those studies. Methods: Adults with Diagnostic and Statistical Manual of Mental Disorders, 4th Edition, Text Revision-defined ADHD were randomized to SHP465 MAS (12.5-75 mg) or PBO in a 7-week dose-optimization study and to SHP465 MAS (25, 50, or 75 mg) or PBO in a 6-week fixed-dose study. Response was examined using three definitions (definition 1: ≥30% ADHD-RS-IV-TS reduction + Clinical Global Impressions-Improvement [CGI-I] rating of 1 or 2; definition 2: ≥50% ADHD-RS-IV-TS reduction + CGI-I rating of 1 or 2; definition 3: ADHD-RS-IV-TS ≤18). Remission was defined as ADHD-RS-IV-TS ≤12. The Kaplan-Meier analyses assessed time to response or remission. Results: The intent-to-treat populations included 136 SHP465 MAS and 132 PBO participants in the dose-optimization study and 302 SHP465 MAS and 103 PBO participants in the fixed-dose study. Percentages of participants meeting response criteria (SHP465 MAS vs. PBO) at the final treatment week in the dose-optimization and fixed-dose studies, respectively, were 66.0% versus 31.6% and 72.7% versus 28.3% (definition 1); 47.9% versus 27.6% and 60.6% versus 16.7% (definition 2); and 54.3% versus 30.3% and 52.6% versus 18.3% (definition 3). The remission criterion (SHP465 MAS vs. PBO) at the final treatment week was met by 37.2% versus 19.7% of participants in the dose-optimization study and 39.7% versus 10.0% of participants in the fixed-dose study. Times to response and remission favored SHP465 MAS over PBO in both studies (all nominal log-rank p < 0.0001). Conclusion: These post hoc analyses indicate that SHP465 MAS was associated with greater response and remission rates than PBO in adults with ADHD, with times to response and remission also nominally favoring SHP465 MAS.


Asunto(s)
Anfetaminas/uso terapéutico , Trastorno por Déficit de Atención con Hiperactividad/tratamiento farmacológico , Estimulantes del Sistema Nervioso Central/uso terapéutico , Preparaciones de Acción Retardada/uso terapéutico , Relación Dosis-Respuesta a Droga , Adulto , Femenino , Humanos , Masculino , Escalas de Valoración Psiquiátrica
7.
J Atten Disord ; 24(3): 434-446, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-28412886

RESUMEN

Objective: The aim of this study was to evaluate the long-term safety of triple-bead mixed amphetamine salts (MAS) in adults with ADHD. Method: Adults meeting Diagnostic and Statistical Manual of Mental Disorders (4th ed., text rev.; DSM-IV-TR) ADHD criteria and satisfying study criteria from one of two antecedent studies were enrolled in this 52-week (dose titration, 4 weeks; dose maintenance, 11 months) open-label extension. The protocol included 12.5- to 75-mg triple-bead MAS but was amended to a maximum of 50-mg triple-bead MAS. Safety evaluations included treatment-emergent adverse events (TEAEs) and vital signs. Clinical outcome measures included ADHD Rating Scale-IV (ADHD-RS-IV) total score changes. Results: Of 505 enrolled participants, 266 completed the study; the M ± SD daily dose during the study was 48.0 ± 15.96 mg. The most frequent TEAEs were insomnia (initial insomnia, insomnia, early morning awakening, middle insomnia; 38.2%), headache (25.7%), and dry mouth (20.2%). Study discontinuations were more frequent with higher doses of triple-bead MAS (37.5-75 mg) than with lower doses (12.5 and 25 mg). Blood pressure and pulse increases were observed at end-of-study. Mean ADHD-RS-IV total score decreases from antecedent study and open-label baselines at end-of-study were -23.3 ± 11.44 and -7.9 ± 13.19, respectively. Conclusion: Triple-bead MAS exhibited a long-term safety profile comparable with previous reports and demonstrated evidence of continued symptom control for up to 12 months.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Estimulantes del Sistema Nervioso Central , Adulto , Anfetamina , Trastorno por Déficit de Atención con Hiperactividad/tratamiento farmacológico , Estimulantes del Sistema Nervioso Central/efectos adversos , Preparaciones de Acción Retardada/uso terapéutico , Relación Dosis-Respuesta a Droga , Método Doble Ciego , Humanos , Sales (Química)/uso terapéutico , Resultado del Tratamiento
8.
J Atten Disord ; 24(3): 402-413, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-28413925

RESUMEN

Objective: Evaluate the efficacy and tolerability of triple-bead mixed amphetamine salts (MAS) in ADHD. Method: Adults with ADHD Rating Scale IV (ADHD-RS-IV) total scores ≥32 were randomized to 6 weeks of triple-bead MAS (25, 50, or 75 mg) or placebo. The primary endpoint was ADHD-RS-IV total score change from baseline at end of study (EOS). Results: Least squares mean (95% confidence interval [CI]) treatment differences for ADHD-RS-IV total score changes from baseline to EOS significantly favored triple-bead MAS (all doses combined: -10.6 [-13.2, -8.0]; p < .0001); there were no significant differences between triple-bead MAS dosages. The most frequently reported TEAEs with triple-bead MAS (all doses combined) included insomnia, decreased appetite, and dry mouth. Mean ± SD pulse and systolic blood pressure increases at EOS were 3.5 ± 10.33 bpm and 0.3 ± 10.48 mmHg with triple-bead MAS (all doses combined). Conclusion: Triple-bead MAS significantly reduced adult ADHD symptoms; the safety profile was consistent with previous triple-bead MAS studies.


Asunto(s)
Anfetamina , Trastorno por Déficit de Atención con Hiperactividad , Estimulantes del Sistema Nervioso Central , Adulto , Anfetamina/uso terapéutico , Trastorno por Déficit de Atención con Hiperactividad/tratamiento farmacológico , Estimulantes del Sistema Nervioso Central/uso terapéutico , Preparaciones de Acción Retardada/uso terapéutico , Relación Dosis-Respuesta a Droga , Método Doble Ciego , Humanos , Sales (Química)/uso terapéutico , Resultado del Tratamiento
9.
Postgrad Med ; 131(3): 212-224, 2019 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-30681017

RESUMEN

OBJECTIVES: To evaluate the duration of efficacy, safety, and tolerability of SHP465 mixed amphetamine salts (MAS) extended-release versus placebo and immediate-release MAS (MAS IR) in adolescents with attention-deficit/hyperactivity disorder (ADHD). METHODS: This phase 2, randomized, 3-period, 3-treatment crossover study compared SHP465 MAS (25/50 mg) with placebo and MAS IR (12.5 mg) in 13-17-year-old adolescents with ADHD having ADHD Rating Scale, Version IV (ADHD-RS-IV) total scores ≥24. A laboratory classroom served as a controlled environment during 16-hour observations, with efficacy assessed on the last day of each 7-day treatment period. The primary efficacy analysis compared SHP465 MAS with placebo on Permanent Product Measure of Performance (PERMP) total score averaged over the 16-hour postdose period using a mixed linear model. Comparisons were also conducted between MAS IR and placebo (for assay sensitivity) and between SHP465 MAS and MAS IR. PERMP problems attempted and answered correctly and ADHD symptoms based on ADHD-RS-IV; participant self-report; Swanson, Kotkin, Agler, M-Flynn, and Pelham Scale; and Revised Conner's Parent Rating Scale scores were also evaluated. Safety and tolerability assessments included treatment-emergent adverse events and vital signs. RESULTS: The intent-to-treat population included 84 participants. Least squares mean (95% CI) PERMP total score treatment differences significantly favored SHP465 MAS (combined 25/50 mg) over placebo for the average of all postdose assessment time points (41.26 [32.24, 50.29]; P < 0.0001) and each postdose assessment time point (all P < 0.0001). Similar results were observed for MAS IR versus placebo (all postdose assessment time points averaged: nominal P < 0.0001; each postdose assessment time point: all nominal P < 0.004). The safety and tolerability of SHP465 MAS were consistent with previous reports. CONCLUSIONS: SHP465 MAS significantly improved PERMP total scores versus placebo from 2 to 16 hours postdose in adolescents with ADHD. The safety and tolerability profile of SHP465 MAS was consistent with previous reports of SHP465 MAS in individuals with ADHD.


Asunto(s)
Anfetamina/administración & dosificación , Trastorno por Déficit de Atención con Hiperactividad/tratamiento farmacológico , Estimulantes del Sistema Nervioso Central/administración & dosificación , Adolescente , Anfetamina/efectos adversos , Estimulantes del Sistema Nervioso Central/efectos adversos , Estudios Cruzados , Preparaciones de Acción Retardada , Método Doble Ciego , Femenino , Humanos , Masculino , Escalas de Valoración Psiquiátrica , Resultado del Tratamiento , Estados Unidos
10.
Postgrad Med ; 130(5): 481-493, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29809075

RESUMEN

OBJECTIVES: The objective of this paper was to evaluate the efficacy, duration of effect, and tolerability of SHP465 mixed amphetamine salts (MAS) extended-release versus placebo and immediate-release MAS (MAS IR) in adults with attention-deficit/hyperactivity disorder (ADHD). METHODS: Adults with ADHD Rating Scale, Version IV (ADHD-RS-IV) scores ≥24 were randomized to SHP465 MAS (50 or 75 mg), placebo, or 25 mg MAS IR in a double-blind, three-period, crossover study using a simulated adult workplace environment. On the final day of each 7-day treatment period, efficacy was assessed for 16 h postdose. Primary efficacy analyses for Permanent Product Measure of Performance (PERMP) total score averaged across all postdose assessments and each postdose time point were conducted in the intent-to-treat population using a mixed linear model. Secondary end-points included PERMP problems attempted and answered correctly and ADHD-RS-IV scores based on clinician ratings of counselor observations using the Time Segment Rating System and participant self-report. Tolerability assessments included treatment-emergent adverse events (TEAEs) and vital signs. RESULTS: Least squares mean (95% CI) treatment differences (combined 50/75 mg SHP465 MAS-placebo) significantly favored SHP465 MAS over placebo for PERMP total score averaged across all postdose assessments (18.38 [11.28, 25.47]; P < .0001) and at each postdose assessment (all P < .02). Nominal superiority of MAS IR over placebo for PERMP total score averaged across all postdose assessments was observed (nominal P = .0001); treatment differences between SHP465 MAS and MAS IR were not significant (nominal P = .2443). The two most frequently reported TEAEs associated with SHP465 MAS were insomnia (36.5%) and anorexia (21.2%). Mean increases in pulse and blood pressure with SHP465 MAS exceeded those of placebo. CONCLUSIONS: SHP465 MAS (combined 50/75 mg) significantly improved PERMP total score versus placebo, with superiority observed from 2 to 16 h postdose. The tolerability profile of SHP465 MAS was similar to previous reports of SHP465 MAS in adults with ADHD. CLINICAL TRIAL REGISTRATION: https://clinicaltrials.gov/ct2/show/NCT00928148 identifier is NCT00928148.


Asunto(s)
Anfetaminas/uso terapéutico , Trastorno por Déficit de Atención con Hiperactividad/tratamiento farmacológico , Estimulantes del Sistema Nervioso Central/uso terapéutico , Lugar de Trabajo , Adolescente , Adulto , Anfetaminas/administración & dosificación , Anfetaminas/efectos adversos , Estimulantes del Sistema Nervioso Central/administración & dosificación , Estimulantes del Sistema Nervioso Central/efectos adversos , Estudios Cruzados , Preparaciones de Acción Retardada , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Escalas de Valoración Psiquiátrica , Adulto Joven
11.
J Child Adolesc Psychopharmacol ; 28(1): 19-28, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-28816509

RESUMEN

OBJECTIVE: The aim of this study was to evaluate the efficacy, safety, and tolerability of SHP465 mixed amphetamine salts (MAS) in children and adolescents with attention-deficit/hyperactivity disorder (ADHD). METHODS: This randomized, double-blind dose-optimization study enrolled children and adolescents (6-17 years) meeting Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision ADHD criteria and having baseline ADHD Rating Scale IV (ADHD-RS-IV) total scores ≥28. Participants were randomized 1:1 to placebo or dose-optimized SHP465 MAS (12.5-25 mg) for 4 weeks. Total score change (baseline to week 4) on the ADHD-RS-IV (primary endpoint) and the Clinical Global Impressions-Improvement (CGI-I) scale score at week 4 (key secondary endpoint) were assessed using linear mixed-effects models for repeated measures. Safety and tolerability assessments (secondary endpoints) included treatment-emergent adverse events (TEAEs) and vital sign changes. RESULTS: Of 264 randomized participants (placebo, n = 132; SHP465 MAS, n = 132), 234 (placebo, n = 118; SHP465 MAS, n = 116) completed the study. The least squares mean (95% confidence interval) treatment difference significantly favored SHP465 MAS over placebo for ADHD-RS-IV total score change from baseline to week 4 (-9.9 [-13.0, -6.8]; p < 0.001; effect size = 0.80) and CGI-I score at week 4 (-0.8 [-1.1, -0.5]; p < 0.001; effect size = 0.65). TEAE frequency was 46.6% (61/131) with placebo and 67.4% (89/132) with SHP465 MAS; no serious TEAEs were reported. TEAEs reported at a frequency of ≥5% and ≥2 times the placebo rate were decreased appetite, insomnia, irritability, nausea, and decreased weight. Mean ± standard deviation increases (baseline to final on-treatment assessment) were higher with SHP465 MAS than placebo for pulse (5.7 ± 11.78 vs. 0.7 ± 10.79), systolic blood pressure (3.8 ± 9.15 vs. 2.1 ± 8.72), and diastolic blood pressure (4.0 ± 8.23 vs. 0.5 ± 7.45). CONCLUSIONS: SHP465 MAS demonstrated superiority over placebo in improving ADHD symptoms and global functioning in children and adolescents with ADHD. The safety and tolerability profile of SHP465 MAS was consistent with that of SHP465 MAS in adults and other long-acting psychostimulants in children and adolescents.


Asunto(s)
Anfetaminas/administración & dosificación , Trastorno por Déficit de Atención con Hiperactividad/tratamiento farmacológico , Estimulantes del Sistema Nervioso Central/administración & dosificación , Adolescente , Anfetaminas/efectos adversos , Trastorno por Déficit de Atención con Hiperactividad/fisiopatología , Estimulantes del Sistema Nervioso Central/efectos adversos , Niño , Relación Dosis-Respuesta a Droga , Método Doble Ciego , Femenino , Humanos , Modelos Lineales , Masculino , Escalas de Valoración Psiquiátrica , Resultado del Tratamiento
12.
Postgrad Med ; 130(1): 111-121, 2018 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-29087231

RESUMEN

OBJECTIVES: Evaluate the efficacy, duration of effect, and safety of 25 mg SHP465 mixed amphetamine salts (MAS) extended-release versus placebo in adults with attention-deficit/hyperactivity disorder (ADHD). METHODS: Adults (18-55 years) with ADHD and with ADHD Rating Scale-IV (ADHD-RS-IV) scores ≥24 were randomized to treatment in a double-blind, 2-period, 2-treatment crossover study utilizing the Adult Workplace Environment (AWE), as described by Wigal and Wigal (J Atten Disord 2006;10:92-111). On day 7 of each 7-day treatment period, efficacy was assessed during a 16.5-hour postdose period. The primary endpoint, Permanent Product Measure of Performance (PERMP) total score, was analyzed in the intent-to-treat population using a mixed linear model of analysis of variance. Secondary endpoints, for which the study was not powered, included PERMP problems attempted and answered correctly, ADHD clinician ratings based on counselor observations and inputs during the Time Segment Rating System (Co-ADHD-RS TSRS), and the ADHD self-rating scale (ADHD-SRS). Safety and tolerability assessments included treatment-emergent adverse events (TEAEs) and vital signs. RESULTS: The least squares mean (95% CI) treatment difference (SHP465 MAS-placebo) for PERMP total score significantly favored SHP465 MAS over placebo when averaged across all postdose assessments (19.29 [10.95, 27.63]; P < 0.0001), with significant treatment differences favoring SHP465 MAS over placebo observed at 4-16 hours postdose (all P < 0.01). TEAEs observed with SHP465 MAS (≥5% of participants) included insomnia, decreased appetite, dry mouth, headache, and anorexia. Mean pulse and blood pressure increases with SHP465 MAS exceeded those of placebo. CONCLUSIONS: SHP465 MAS (25 mg) was superior to placebo on PERMP total score, with treatment differences observed from 4 to 16 hours postdose; nominal treatment differences on the ADHD-SRS, but not the Co-ADHD-RS TSRS, were also observed. The safety and tolerability profile of SHP465 MAS was similar to previous reports for SHP465 MAS and other long-acting stimulants. Clinical trials registry: clinicaltrials.gov (NCT00202605; https://clinicaltrials.gov/ct2/show/NCT00202605 ).


Asunto(s)
Anfetaminas/uso terapéutico , Trastorno por Déficit de Atención con Hiperactividad/tratamiento farmacológico , Estimulantes del Sistema Nervioso Central/uso terapéutico , Adolescente , Adulto , Estudios Cruzados , Preparaciones de Acción Retardada , Método Doble Ciego , Combinación de Medicamentos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento , Lugar de Trabajo , Adulto Joven
13.
Mens Sana Monogr ; 10(1): 45-69, 2012 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-22654382

RESUMEN

Attention deficit hyperactivity disorder is a developmental disorder with an age onset prior to 7 years. Children with ADHD have significantly lower ability to focus and sustain attention and also score higher on impulsivity and hyperactivity. Stimulants, such as methylphenidate, have remained the mainstay of ADHD treatment for decades with evidence supporting their use. However, recent years have seen emergence of newer drugs and drug delivery systems, like osmotic release oral systems and transdermal patches, to mention a few. The use of nonstimulant drugs like atomoxetine and various other drugs, such as α-agonists, and a few antidepressants, being used in an off-label manner, have added to the pharmacotherapy of ADHD. This review discusses current trends in drug therapy of ADHD and highlights the promise pharmacogenomics may hold in the future.

14.
Neuropsychiatr Dis Treat ; 7: 267-73, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21654872

RESUMEN

OBJECTIVE: To assess effects of lisdexamfetamine dimesylate (LDX) and mixed amphetamine salts extended release (MAS XR) on symptom improvement in children with attention-deficit/hyperactivity disorder (ADHD). METHODS: Post hoc analysis of a randomized, double-blind, placebo-controlled, crossover analog-classroom environment was conducted. The primary efficacy outcome was the deportment subscale of the Swanson, Kotkin, Agler, M-Flynn, and Pelham (SKAMP-D) rating scale. The secondary efficacy outcome was the investigator-rated Clinical Global Impressions-Improvement (CGI-I), a 7-point scale ranging from 1 (very much improved) to 7 (very much worse), which assesses improvement over time from baseline. McNemar test was used to compare participants' responses to LDX and MAS XR on CGI-I scores dichotomized into 1 (very much improved) vs all other response scores (2 to 7) in a 2 × 2 table. RESULTS: Fifty-two children (aged 6 to 12 years) were enrolled, titrated, and randomized; 50 completed the study. Investigators rated 74% of LDX participants as either very much improved or much improved on the CGI-I scale relative to 72% of MAS XR participants and 18% of placebo participants. Of the 50 children who completed the study, 32% of LDX participants were very much improved vs 16% of MAS XR, and 2% of placebo participants relative to baseline. McNemar test indicated that 10 participants were very much improved with LDX, but not MAS XR; 2 participants were very much improved with MAS XR, but not LDX; 6 participants were very much improved with both, while 32 were not very much improved with either. Analysis showed that LDX had a significantly higher number of children with a very much improved score on the CGI-I than MAS XR (P = 0.0386). CONCLUSION: Treatment of children with LDX resulted in a higher number of participants with a very much improved score on the CGI-I than treatment with MAS XR or placebo.

15.
Paediatr Child Health ; 12(5): 373-8, 2007 May.
Artículo en Inglés | MEDLINE | ID: mdl-19030388

RESUMEN

BACKGROUND: Adderall XR (Shire BioChem Inc, Canada), a medication used to treat attention deficit hyperactivity disorder, was withdrawn from the Canadian market in February 2005 due to concerns of possible cardiotoxicity and cerebral vascular events among a small number of individuals who had taken the medication. OBJECTIVE: The primary objective of the present study was to investigate the degree to which the physician's relationship with the families of the patients to whom the medication was prescribed was affected by the withdrawal of Adderall XR from the Canadian market. The study sought to explore the perceptions of caregivers of patients who took Adderall XR to the drug recall. As a secondary objective, the study also assessed the differences in perception of caregivers toward physicians compared with their perception of other agencies involved with the recall. METHODS: Questionnaires were sent to the caregivers of 123 patients who had been taking the drug at the time of the withdrawal. RESULTS AND CONCLUSIONS: Of the 53 (43%) completed questionnaires, 89% of respondents indicated that they were concerned when informed of the withdrawal, while 58% indicated that they were frightened. Despite the concerns, only a modest degree of anger was expressed. Thirty per cent of respondents reported anger directed at Health Canada, 24% reported anger directed at the manufacturer, while no caregiver reported anger directed at their physician. Only three families (5.7%) indicated a decrease in confidence in the physician following the event. Fifty-eight per cent indicated a willingness to resume taking Adderall XR, if it was deemed safe by Health Canada. These results offer insight into patient and family perspectives following an unexpected medication recall. While caregivers were generally concerned and often frightened by this event, the present data do not suggest that the parent-physician relationship was greatly affected.

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