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1.
Subst Use Misuse ; 58(9): 1110-1114, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37165975

RESUMO

Background: Pregnant women with substance use disorder often fail to complete treatment. Treatment retention can be influenced by many factors, including CPS involvement. This study evaluates the relationship, if any, between active CPS involvement while in treatment and treatment outcomes. Methods: This study is a retrospective analysis of data from 127 patients from the Center for Addiction and Pregnancy at the Johns Hopkins Bayview Medical Center in Baltimore, MD. The sample included 92 women with active CPS cases and 35 individuals without current CPS involvement. A log binomial regression with robust variance was used to estimate the relative risks of treatment completion and time spent in treatment (≥90 days vs. <90 days) between the active CPS-involved and uninvolved groups. Statistical significance was noted at a level of p < 0.05. Results: Women with active CPS involvement during their admission were significantly more likely to spend at least 90 days in treatment (OR = 1.78, CI = [1.09, 2.93]). The active CPS group also trended toward higher rates of treatment completion (RR = 1.41, CI = [0.78, 2.57]), although this finding was not statistically significant. Conclusions: In this real-world clinical sample, active CPS involvement was not associated with early SUD treatment discontinuation, however this did not translate to significant differences in rates of treatment completion. Additionally, prospective research to evaluate how the potential for CPS involvement may affect enrollment in SUD treatment would also help direct patient counseling.


Assuntos
Serviços de Proteção Infantil , Transtornos Relacionados ao Uso de Substâncias , Feminino , Humanos , Gravidez , Período Pós-Parto , Estudos Prospectivos , Estudos Retrospectivos , Transtornos Relacionados ao Uso de Substâncias/terapia
2.
Addict Biol ; 26(6): e13061, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34028926

RESUMO

Cannabis effects are predominantly mediated by pharmacological actions on cannabinoid type 1 (CB1 ) receptors. Prior positron emission tomography (PET) studies in individuals who use cannabis included almost exclusively males. PET studies in females are needed because there are sex differences in cannabis effects, progression to cannabis use disorder (CUD), and withdrawal symptom severity. Females with CUD (N = 10) completed two double-blind cannabis smoking sessions (Session 1: placebo; Session 2: active), and acute cannabis effects were assessed. After Session 2, participants underwent 3 days of monitored cannabis abstinence; mood, craving, and withdrawal symptoms were assessed and a PET scan (radiotracer: [11 C]OMAR) followed. [11 C]OMAR Distribution volume (VT ) from these participants was compared with VT of age/BMI-similar female non-users of cannabis ("healthy controls"; N = 10). VT was also compared between female and male healthy controls (N = 7). Females with CUD displayed significantly lower VT than female healthy controls in specific brain regions (hippocampus, amygdala, cingulate, and insula). Amygdala VT was negatively correlated with mood changes (anger/hostility) during abstinence, but VT was not correlated with other withdrawal symptoms or cannabis effects. Among healthy controls, females had significantly higher VT than males in all brain regions examined. Chronic cannabis use appears to foster downregulation of CB1 receptors in women, as observed previously in men, and there are inherent sex differences in CB1 availability. Future studies should elucidate the time course of CB1 downregulation among females who use cannabis and examine the relation between CB1 availability and cannabis effects among other populations (e.g., infrequent users; medicinal users).


Assuntos
Encéfalo/efeitos dos fármacos , Abuso de Maconha/patologia , Receptor CB1 de Canabinoide/efeitos dos fármacos , Síndrome de Abstinência a Substâncias/patologia , Adulto , Afeto/efeitos dos fármacos , Fatores Etários , Índice de Massa Corporal , Encéfalo/diagnóstico por imagem , Fissura/efeitos dos fármacos , Método Duplo-Cego , Feminino , Hipocampo/efeitos dos fármacos , Humanos , Masculino , Abuso de Maconha/diagnóstico por imagem , Gravidade do Paciente , Tomografia por Emissão de Pósitrons , Compostos Radiofarmacêuticos/farmacocinética , Autoadministração , Adulto Jovem
3.
J Dual Diagn ; 16(4): 447-454, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32701419

RESUMO

OBJECTIVES: Technology-assisted treatment (TAT) holds promise for innovative assessment, prevention, and treatment of substance use disorders (SUD). The widespread access to TAT makes it a potentially cost-effective and inventive option available for delivery in multiple settings. This study assessed acceptability of the web-based Therapeutic Education System (TES) in hospitalized dual diagnosis patients with SUDs and other psychiatric disorders. Methods: Eligible participants were nonpsychotic, voluntary patients with self-reported drug or alcohol use in the 30 days prior to admission. They were randomly assigned to treatment as usual (TAU, n = 47) or TAU + TES (n = 48). Acceptability of this Internet-based intervention was assessed by observed utilization and self-report. Results: The TAU + TES group (# analyzed = 41) completed a mean total of 5.5 (SEM = 0.8) modules with about one module per day while hospitalized and rated TES highly on several constructs of acceptability, including novelty, usefulness and ease of understanding. Conclusions: These findings support further exploration of TAT for treatment expansion in a high acuity, dual diagnosis population and indicate the value of future research on efficacy. ClinicalTrials.gov Identifier: NCT02674477.


Assuntos
Transtornos Mentais , Transtornos Relacionados ao Uso de Substâncias , Diagnóstico Duplo (Psiquiatria) , Humanos , Pacientes Internados , Internet , Transtornos Mentais/complicações , Transtornos Mentais/terapia , Transtornos Relacionados ao Uso de Substâncias/complicações , Transtornos Relacionados ao Uso de Substâncias/terapia
4.
Int Rev Psychiatry ; 30(5): 147-154, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30398080

RESUMO

Methadone maintenance treatment (MMT) is an important treatment tool for the opioid epidemic. One challenge is that many persons who present for MMT also have co-occurring psychiatric disorders. Individually, both methadone and psychiatric medications carry risk of weight gain. Therefore, concurrent prescribing of methadone and psychiatric medications places dual diagnosis patients at even greater risk. As a parallel obesity epidemic grows, results from clinical trials assessing weight gain and weight management strategies among MMT and psychiatric patients can both inform and guide clinical practice. This study reviews findings from a literature search for recent clinical trials that focused on weight gain and weight management strategies during MMT with concurrent psychotropic medication use. While several studies have documented weight gain during MMT and psychotropic medication treatment, this study failed to identify recent work that explored concurrent prescribing. Most weight management strategies involved the use of additional medications and available data suggests that MMT and concurrent use of psychotropic medications increases the risk for obesity. More robust research is needed on weight gain and potential mitigation strategies when these treatment modalities are jointly utilized. Clarification of underlying biological mechanisms and development of non-pharmacological interventions merit further consideration.


Assuntos
Manutenção do Peso Corporal/efeitos dos fármacos , Diagnóstico Duplo (Psiquiatria) , Metadona/efeitos adversos , Entorpecentes/efeitos adversos , Tratamento de Substituição de Opiáceos , Transtornos Relacionados ao Uso de Opioides/tratamento farmacológico , Psicotrópicos/efeitos adversos , Aumento de Peso/efeitos dos fármacos , Humanos
5.
J Acquir Immune Defic Syndr ; 94(2S): S47-S52, 2023 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-37707848

RESUMO

BACKGROUND: Creating empathetic health care professionals is critical to addressing the health equity challenges of today, particularly because it relates to vulnerable populations. METHODS: To assess the impact of the Johns Hopkins Center for AIDS Research Generation Tomorrow Summer Health Disparities Scholars (GTSHDS) program on students' empathy toward individuals living with substance use disorder and differential impact on empathy related to the COVID-19 pandemic, the Attitudes towards Mental Illness Questionnaire (AMIQ), an assessment of stigmatizing attitudes, was administered. Preprogram and postprogram participation AMIQ survey data were compared using paired t tests to explore changes within the program year. Unpaired t tests were used to characterize differences between the mean scores across the 2 student cohorts. RESULTS: Both GTSHDS cohorts displayed postprogram increase in empathy. Mean 2019 cohort AMIQ scores shifting from -1.4 (SD 2.01) to -0.8 (SD 2.35) (P = 0.54), and the 2022 cohort shifting from -3.67 (SD 2.01) to -3 (SD 1.61) (P = 0.79). On average, individual scores improved by 2.2 (SD 1.65) points in the 2019 cohort and 2.4 (SD 1.86) points in the 2022 cohort (P = 0.83). Although these were not statistically significant, they suggested a trend toward more empathy. CONCLUSIONS: Preliminary data suggest that programs such as GTSHDS that expose students to various aspects of health care principles can prepare future health care professionals in a manner that may reduce health care disparities. Future research with larger population sizes is needed to understand the impacts of the curriculum on empathy and related concepts to achieving health equity.


Assuntos
COVID-19 , Infecções por HIV , Humanos , Populações Vulneráveis , COVID-19/epidemiologia , Empatia , Pandemias
6.
J Psychopharmacol ; 37(7): 707-716, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37291890

RESUMO

BACKGROUND: Psilocybin is being studied for depression, but little is known about how it interacts with common antidepressants. Limited data suggest that psilocybin's effects may be diminished by serotonergic antidepressants acutely and even after a medication washout period. AIMS: To learn the extent to which antidepressants may diminish the effects of psilocybin-containing mushrooms both concurrently and after discontinuation of antidepressants. METHODS: Online retrospective survey of individuals with use of psilocybin mushrooms (1) with an antidepressant and/or (2) within 2 years of discontinuing an antidepressant. Participants who took mushrooms with an antidepressant and either took the same dose pre-antidepressant or took the same dose with other people not on antidepressant reported the strength of drug effects relative to their expectation. Participants who took mushrooms following discontinuation of an antidepressant also reported the presence of weakened effects. RESULTS: In reports (n = 611) of taking mushrooms with an antidepressant, probabilities [95% CI] of weaker than expected drug effects were 0.47 [0.41-0.54] (selective serotonergic reuptake inhibitors, SSRIs), 0.55 [0.44-0.67] (serotonin norepinephrine reuptake inhibitors, SNRIs) and 0.29 [0.2-0.39] (bupropion). Following SSRI/SNRI discontinuation (n = 1,542 reports), the probability of reduced drug effects was not significantly different from the earliest post-discontinuation timepoint (within 1 week) until 3-6 months, probability = 0.3 [0.20-0.46], p = 0.001. A sensitivity analysis found that removing responses involving fluoxetine, which has an especially long half-life, did not significantly alter this result. CONCLUSIONS: SSRI/SNRIs appear to weaken psilocybin drug effects relative to a non-serotonergic antidepressant. This dampening effect may last as long as 3 months following antidepressant discontinuation.


Assuntos
Agaricales , Inibidores da Recaptação de Serotonina e Norepinefrina , Humanos , Psilocibina/farmacologia , Estudos Retrospectivos , Antidepressivos/farmacologia , Antidepressivos/uso terapêutico , Inibidores Seletivos de Recaptação de Serotonina/farmacologia
7.
Drug Alcohol Depend ; 253: 111022, 2023 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-37977041

RESUMO

BACKGROUND: Opioid use disorders (OUDs) often co-occur with anxiety and depressive disorders. While the proportion of mental health (MH) treatment facilities providing substance use treatment has increased, the proportion of these facilities able to simultaneously treat MH and substance use decreased. This warrants investigation into the integrated treatment needs of persons with a primary OUD diagnosis treated in MH treatment facilities. METHODS: Using the Mental Health Client Level Data, we examined a sample of N = 83,975 adults with OUD as their primary diagnosis who received treatment from a MH treatment facility in the United States from 2015 to 2019. Joinpoint regression was used to examine annual trends of the number of individuals with co-occurring anxiety or depression diagnoses. RESULTS: Most of the sample were men (53.7%) and received treatment in a community-based program (93.3%). Approximately 17% of the sample had either an anxiety or depressive disorder diagnosis. Approximately 9% of our sample had an anxiety disorder diagnosis, and 10% had a depressive disorder diagnosis. An increase in the number of individuals with a co-occurring anxiety disorder diagnosis from 2015 to 2019 was identified (annual percent change (APC) = 61.4; 95% confidence interval (CI) = [10.0, 136.9]; p =.029). An increase in the number of individuals with a co-occurring depressive disorder diagnosis from 2015 to 2019 was identified (APC = 39.0; 95% CI = [7.4; 79.9]; p =.027). CONCLUSIONS: This study highlights increases in adults receiving MH treatment for OUD having co-occurring anxiety or depression diagnoses, furthering the importance of integrated dual disorder treatment.


Assuntos
Transtorno Depressivo , Transtornos Relacionados ao Uso de Opioides , Adulto , Masculino , Humanos , Estados Unidos/epidemiologia , Feminino , Saúde Mental , Ansiedade , Transtornos de Ansiedade/complicações , Transtornos de Ansiedade/diagnóstico , Transtornos de Ansiedade/epidemiologia , Transtorno Depressivo/complicações , Transtorno Depressivo/diagnóstico , Transtorno Depressivo/epidemiologia , Transtornos Relacionados ao Uso de Opioides/diagnóstico , Transtornos Relacionados ao Uso de Opioides/epidemiologia , Transtornos Relacionados ao Uso de Opioides/terapia
8.
Drug Alcohol Depend Rep ; 8: 100188, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37731966

RESUMO

Background: Inter-individual differences in opioid sensitivity may underlie different opioid risk profiles but have often been researched in persons who have current or past opioid use disorder or physical dependence. This study examined how opioid sensitivity manifests across various assessments of opioid effects in a primarily opioid-naïve population. Procedures: Data were harmonized from two within-subject, double-blind trials wherein healthy participants (N = 123) received placebo and 4 mg oral hydromorphone. Demographics, self-report ratings, observer ratings, physiological, and cold pressor measures were collected. Participants were categorized as being responsive or nonresponsive to the opioid dose tested and compared using mixed-models, Pearson product correlations, and paired t-tests. Findings: Participants were 49.6% female, mean 33.0 (SD=9.3) years old, and 44.7% Black/African American and 41.5% White, with 89.4% reporting no prior exposure to opioids. Within-subject sensitivity to opioids varied depending on the measure. One in five participants did not respond subjectively to the 4 mg hydromorphone dose based on their "Drug Effects" rating. Persons who were responsive showed more evidence of drug-dependent effects than did persons who were not responsive on ratings of Bad Effects (p= .03), feeling High (p= .01), Nausea (p= .03), pupil diameter (p< 0.01), and on the circular lights task (p< 0.001). Conclusions: This study provides initial evidence that the experience of opioids may be domain specific. Data suggest potentially clinically meaningful differences exist regarding opioid response patterns, evident following one dose among opioid inexperienced individuals.

9.
J Acquir Immune Defic Syndr ; 94(2S): S5-S12, 2023 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-37707842

RESUMO

BACKGROUND: There is an urgent need to increase diversity among scientific investigators in the HIV research field to be more reflective of communities highly affected by the HIV epidemic. Thus, it is critical to promote the inclusion and advancement of early-stage scholars from racial and ethnic groups underrepresented in HIV science and medicine. METHODS: To widen the HIV research career pathway for early-stage scholars from underrepresented minority groups, the National Institutes of Health supported the development of the Centers for AIDS Research (CFAR) Diversity, Equity, and Inclusion Pathway Initiative (CDEIPI). This program was created through partnerships between CFARs and Historically Black Colleges and Universities and other Minority Serving Institutions throughout the United States. RESULTS: Seventeen CFARs and more than 20 Historically Black Colleges and Universities and Minority Serving Institutions have participated in this initiative to date. Programs were designed for the high school (8), undergraduate (13), post baccalaureate (2), graduate (12), and postdoctoral (4) levels. Various pedagogical approaches were used including didactic seminar series, intensive multiday workshops, summer residential programs, and mentored research internship opportunities. During the first 18 months of the initiative, 257 student scholars participated in CDEIPI programs including 150 high school, 73 undergraduate, 3 post baccalaureate, 27 graduate, and 4 postdoctoral students. CONCLUSION: Numerous student scholars from a wide range of educational levels, geographic backgrounds, and racial and ethnic minority groups have engaged in CDEIPI programs. Timely and comprehensive program evaluation data will be critical to support a long-term commitment to this unique training initiative.


Assuntos
Síndrome da Imunodeficiência Adquirida , Infecções por HIV , Estados Unidos , Humanos , Etnicidade , Diversidade, Equidade, Inclusão , Grupos Minoritários
10.
Drug Alcohol Depend ; 220: 108515, 2021 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-33461154

RESUMO

OBJECTIVE: This study examined Electronic Health Record (EHR) utilization among US substance use disorder (SUD) versus mental health (MH) treatment facilities. METHODS: Data from the National Survey of Substance Abuse Treatment Services and the National Mental Health Services Survey were used to examine differences in clinical and administrative utilization of EHR. RESULTS: EHR use was significantly less common among SUD facilities compared to MH facilities for both non-exclusive (mixed computer and paper) and exclusive (paper-free) use. Fewer than 25 % of facilities of either type reported exclusive EHR use for core clinical activities (progress notes, laboratory monitoring, and prescriptions) with wide variability among states. Being an inpatient facility, having Joint Commission accreditation, being a private-for-profit, or a public facility were significantly positively associated with exclusive EHR use for core clinical activities; these associations were stronger among SUD facilities than MH facilities. Accepting Medicare was associated with exclusive EHR use for core clinical activities in both facility types, while accepting private insurance was associated with such use only among SUD treatment facilities. CONCLUSIONS: EHR adoption among SUD facilities lags behind MH facilities. However, exclusive EHR use for clinical purposes remains elusive for both types of facilities with no more than a quarter of facilities in any state reporting such use. Some of the factors associated with exclusive EHR use for clinical purposes among SUD treatment facilities-such as Joint Commission accreditation-may be policy leverage points to expedite EHR adoption in these facilities.


Assuntos
Registros Eletrônicos de Saúde/estatística & dados numéricos , Instalações de Saúde/estatística & dados numéricos , Serviços de Saúde Mental , Centros de Tratamento de Abuso de Substâncias , Humanos , Masculino , Estados Unidos
11.
J Addict Nurs ; 31(3): 213-220, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32868613

RESUMO

BACKGROUND: Negative healthcare provider attitudes toward patients with substance use disorder (SUD) may adversely impact the quality of care and treatment outcomes. PURPOSE: In this article, we aim to characterize the effects of an 8-hour educational workshop on attitudes toward patients with SUD among nurses from an urban inpatient psychiatric hospital. METHODS: The Drug and Drug Problems Perceptions Questionnaire, a 22-item scale consisting of six subscales, was used to assess nurse attitudes to patients with SUD at pretest (n = 38), posttest (n = 36), and 30-day follow-up (n = 20). Generalized estimating equation models adjusted for gender and years of work experience were used to measure changes in Drug and Drug Problems Perceptions Questionnaire scores. RESULTS: Positive attitudes significantly increased at posttest (ß = -12.09, 95%CI [-16.83, -7.34]; p < .001) and were sustained at 30-day follow-up (ß = 1.71, 95% CI [-3.11, 6.53]; p = .49). Subscales of motivation (ß = -0.26, 95% CI [-0.87, 0.35]; p = .41) and task-specific self-esteem (ß = -0.56, 95% CI [-1.44, 0.32]; p = .21) did not significantly change at posttest. CONCLUSIONS: Our findings show workshop effectiveness in improving nurse attitudes toward patients with SUD. Future research may test similar interventions at a larger scale and with other health professionals.


Assuntos
Atitude do Pessoal de Saúde , Recursos Humanos de Enfermagem Hospitalar/psicologia , Transtornos Relacionados ao Uso de Substâncias/enfermagem , Adulto , Idoso , Feminino , Hospitais Psiquiátricos , Humanos , Masculino , Pessoa de Meia-Idade , Recursos Humanos de Enfermagem Hospitalar/educação , Inquéritos e Questionários , Adulto Jovem
12.
J Interpers Violence ; 35(1-2): 476-495, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-29294630

RESUMO

Adverse perinatal outcomes are a significant contributor to neonatal and infant deaths. Mental illness, substance use disorders, and interpersonal trauma are often prevalent within obstetrical populations. Previous literature has documented the individual associations between these psychosocial factors and adverse perinatal outcomes. The co-occurrence of these three psychosocial factors might represent a syndemic among pregnant women, although they have not been described as such in the literature. Analysis of the interrelatedness and aggregate effect of these factors may allow for a more effective screening process that may reduce adverse perinatal outcomes. The objective of this article is to examine whether psychosocial factors (mental illness, substance use disorders, and interpersonal trauma) were independently and synergistically associated with adverse perinatal outcomes. This is a retrospective cohort study of 1,656 pregnant women at a single institution. Perinatal outcome and psychosocial data were abstracted from each participant's electronic medical record. Univariate and bivariate analyses, and multiple logistic regression were performed. Mean age was 27.5 (SD = 6.2) years. The majority was Black (60.6%) and single (58%). Psychosocial factors were reported in 35% of women. The incidence of adverse perinatal outcomes increased with greater number of psychosocial factors: 21.2% if no psychosocial factor, 27.0% if one psychosocial factor, 27.4% if two, and 35.3% if all three (for trend, p = .01). Women who reported all three psychosocial factors had twice the odds of adverse perinatal outcomes (adjusted odds ratio = 2.04, 95% confidence interval = [1.09, 3.81], p = .03) compared with those who reported none. Our data suggest there is a synergistic relationship between the psychosocial factors that is associated with increased adverse perinatal outcomes. A validated screening tool is needed to stratify patient's risk of adverse perinatal outcomes based on psychosocial factors. Such screening could lead to tailored interventions that could decrease adverse perinatal outcomes.


Assuntos
Transtornos Mentais/epidemiologia , Abuso Físico/psicologia , Gestantes/psicologia , Delitos Sexuais/psicologia , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Sindemia , Adulto , Baltimore/epidemiologia , Feminino , Humanos , Recém-Nascido de Baixo Peso , Unidades de Terapia Intensiva Neonatal , Morte Perinatal , Gravidez , Resultado da Gravidez/epidemiologia , Nascimento Prematuro , Fatores Raciais , Estudos Retrospectivos , Adulto Jovem
13.
J Opioid Manag ; 15(5): 367-374, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31849028

RESUMO

OBJECTIVE: This study describes changes in weight and cardiovascular risk factors over time among individuals enrolled in methadone maintenance treatment for opioid use disorder. Demographic and clinical predictors of weight gain were also evaluated. DESIGN: This study was a retrospective chart review evaluating data over a period of 3 years. SETTING: Medical records of individuals enrolled in an academic research outpatient methadone maintenance treatment program were reviewed. PATIENTS: Seventy-four individuals who were admitted and retained in methadone maintenance treatment for at least 3 consecutive years were included. OUTCOME MEASURES: Annual weight was assessed by calculating body mass index (BMI). Changes over time in cardiovascular risk factors of hypertension, diabetes, and hypercholesterolemia were also assessed. RESULTS: The percentage of patients categorized as overweight, obese, or morbidly obese BMI increased from 42 percent (n = 31) at admission to 76 percent (n = 56), 82 percent (n = 61), and 88 percent (n = 65) at 1, 2, and 3 years post-admission, respectively. Hypertension, diabetes, and hypercholesterolemia also tended to increase following admission. BMI increases tended to be greater for those with a higher dose of methadone, as well as for females and Black/African American individuals. No other predictors of weight gain were identified. CONCLUSIONS: These data indicate that methadone maintenance treatment is associated with clinically meaningful weight gain and increases in cardiovascular risk factors. Given the importance of methadone maintenance for treatment of opioid use disorder, future research should examine additional predictors and potential mechanisms of weight gain among methadone patients and develop tailored interventions including nutritional knowledge and lifestyle recommendations.


Assuntos
Índice de Massa Corporal , Doenças Cardiovasculares , Metadona/efeitos adversos , Obesidade Mórbida , Analgésicos Opioides , Doenças Cardiovasculares/induzido quimicamente , Feminino , Humanos , Masculino , Obesidade Mórbida/induzido quimicamente , Estudos Retrospectivos , Fatores de Risco
14.
Drug Alcohol Depend ; 132(1-2): 369-72, 2013 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-23369645

RESUMO

BACKGROUND: Abuse liability assessments influence drug development, federal regulation, and clinical care. One suggested procedure to reduce variability of assessments is a qualification phase, which assesses whether study applicants adequately distinguish active drug from placebo; applicants failing to make this distinction are disqualified. The present analyses assessed differences between qualification phase qualifiers and non-qualifiers. METHODS: Data were collected from 23 completers of the qualification phase of an abuse liability study. Opioid abusing participants received 30 mg oxycodone and placebo orally on separate days, and were characterized as qualifiers (vs. non-qualifiers) if their peak visual analog scale liking rating for oxycodone was at least 20 points higher than placebo's peak rating. Groups were compared on demographic characteristics, drug history, and physiologic, subject and observer ratings. RESULTS: 61% of participants were qualifiers and 39% were non-qualifiers. Groups had similar demographic characteristics, drug use histories, and pupillary constriction responses. However, unlike qualifiers, non-qualifiers had an exaggerated placebo response for the liking score (p=0.03) and an attenuated oxycodone response for the liking score (p<0.0001). Non-qualifiers' failure to differentiate oxycodone versus placebo was evident for subject and observer ratings. CONCLUSION: Different subjective responses to identical stimuli support the use of a qualification phase in abuse liability assessments. Further research should explore objective measures that may better account for these differences, determine optimal qualification criteria, and explore the developmental course of drug use. This study also documents certain opioid abusers fail to differentiate 30 mg of oxycodone from placebo, a phenomenon deserving further study.


Assuntos
Analgésicos Opioides/farmacologia , Discriminação Psicológica/fisiologia , Transtornos Relacionados ao Uso de Opioides/psicologia , Adolescente , Adulto , Idoso , Estudos Cross-Over , Relação Dose-Resposta a Droga , Método Duplo-Cego , Euforia/efeitos dos fármacos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Entorpecentes/farmacologia , Oxicodona/farmacologia , Placebos , Pupila/efeitos dos fármacos , Adulto Jovem
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