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Klimas, Jan
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Klimas, Jan
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Klimas, Jan
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Now showing 1 - 8 of 8
- PublicationPsychosocial Interventions for Alcohol use among problem drug users (PINTA) : protocol for a feasibility study in primary care(JMIR, 2013-08)
; ; ; ; ; Background: Alcohol use is an important issue among problem drug users. Although screening and brief intervention are effective in reducing problem alcohol use in primary care, no research has examined this issue among problem drug users. Objectives: To determine if a complex intervention, incorporating screening and brief intervention for problem alcohol use among problem drug users, is feasible and acceptable in practice and effective in reducing the proportion of patients with problem alcohol use. Methods: PINTA is a pilot feasibility study of a complex intervention comprising screening and brief intervention for problem alcohol use among problem drug users with cluster randomisation at the level of general practice, integrated qualitative process evaluation, and involving general practices in two socioeconomically deprived regions. Participants: Practices (N=16) will be eligible to participate if they are registered to prescribe methadone and/or at least 10 patients of the practice are currently receiving addiction-treatment. Patient inclusion criteria are: aged 18 or over and receiving addiction treatment / care (e.g.methadone) or known to be a problem drug user. Interventions: A complex intervention, supporting screening and brief intervention for problem alcohol use among problem drug users (experimental group) compared to an 'assessment only' control group. A delayed intervention being available to 'control' practices after follow up. Outcome: Primary outcomes are feasibility and acceptability of the intervention to patients andprofessionals. Secondary outcome is the effectiveness of the intervention on care process (documented rates of screening and brief intervention) and outcome (proportion of patients with problem alcohol use at the follow up). Randomisation: Stratified random sampling of general practices based on level of training in providing addiction-related care and geographical area. Blinding: Single-blinded; GPs and practice staff, researchers and trainers will not be blinded, but patients and remote randomisers will. Discussion: This is the first study to examine feasibility and acceptability of primary care based complex intervention to enhance alcohol screening and brief intervention among problem drug users. Results will inform future research among this high-risk population and guide policy and service development locally and internationally.308 - PublicationFactors associated with discontinuation of methadone maintenance therapy (MMT) among persons who also use alcohol in Vancouver, CanadaBackground We sought to examine the factors associated with discontinuation of MMT among persons on methadone who use alcohol. Methods We evaluated the impact of drug-related and other factors on discontinuation of MMT among persons enrolled in MMT and who reported any use of alcohol versus those who were enrolled in two community-recruited prospective cohorts of people who use illicit drugs (PWUD). Extended Cox models with time-dependent variables identified factors independently associated with time to first MMT discontinuation. Results Between December 2005 and 2015, 823 individuals on MMT who also reported using alcohol at least once were included in these analyses. During the study period, 391 (47.5%) discontinued methadone. Daily heroin injection (Adjusted Hazard Ratio [AHR] = 2.67, 95% Confidence Interval [CI]: 2.10–3.40) and homelessness (AHR = 1.42, 95% CI: 1.10–1.83) were positively associated with MMT discontinuation, whereas receiving other concurrent addiction treatment in addition to MMT (AHR = 0.07, 95% CI: 0.05–0.08), as well as >60 mg methadone dose (AHR = 0.48, 95% CI: 0.39–0.60), Hepatitis C virus seropositivity (AHR = 0.65, 95% CI: 0.47–0.90), and HIV seropositivity (AHR = 0.72, 95% CI: 0.57–0.91) were negatively associated with MMT discontinuation. Any/heavy alcohol use was not independently associated with MMT discontinuation. Conclusions This study reinforces the known risks of continued heroin injection and homelessness for MMT discontinuation among individuals who also consume alcohol and highlights the protective effect of both MMT dose and receipt of concurrent addiction treatment.
278Scopus© Citations 9 - PublicationAlcohol Use among Persons on Methadone TreatmentWe read with interest Dr Varshney et al.'s article on brief interventions for alcohol use among persons on maintenance treatment published ahead-of-print on August 11, 2015. While alcohol is found in the majority of drug-related deaths that involve illicit drugs, around the globe, maintenance therapy with methadone (MMT), or buprenorphine, reduces morbidity and mortality among people who use opiates. Although one common clinical challenge is comorbid alcohol use and opioid use disorder, with guidelines often recommending withholding methadone in this context given the potential for fatal overdose due to drug interactions, alcohol's impact on the health outcomes of MMT patients has been 'overlooked and underestimated'. Therefore, we examined the impact of heavy alcohol use on mortality among MMT patients.
329Scopus© Citations 3 - PublicationGenetic pre-determinants of concurrent alcohol and opioid dependence: a critical review(OA Publishing London, 2013-11)
; ; ; ; ; ; ; Concurrent alcohol dependence poses a significant burden to health and wellbeing of people with established opioid dependence. Although previous research indicates that both genetic and environmental risk factors contribute to the development of drug or alcohol dependence, the role of genetic determinants in development of concurrent alcohol and opioid dependence has not been scrutinised. To search for genetic pre-determinants of concurrent alcohol and opioid dependence, electronic literature searches were completed using MEDLINE (PubMed) and EBSCO (Academic Search Complete) databases. Reference lists of included studies were also searched. In this discussion paper, we provide an overview of the genes (n=33) which are associated with the opioid, serotonergic, dopaminergic, GABA-ergic, cannabinoid, and metabolic systems for each dependency (i.e., alcohol or opioid) separately. The current evidence base is inconclusive regarding an exclusively genetic pre-determinant of concurrent alcohol and opioid dependence. Further search strategies and original research are needed to determine the genetic basis for concurrent alcohol and opioid dependency.362 - PublicationFeasibility of alcohol screening among people receiving Opioid treatment in primary care(BioMed Central, 2016-11-05)
; ; ; ; ; Background: Identifying and treating problem alcohol use among people who also use illicit drugs is a challenge. Primary care is well placed to address this challenge but there are several barriers which may prevent this occurring. The objective of this study was to determine if a complex intervention designed to support screening and brief intervention for problem alcohol use among people receiving opioid agonist treatment is feasible and acceptable to healthcare providers and their patients in a primary care setting. Methods: A randomised, controlled, pre-and-post design measured feasibility and acceptability of alcohol screening based on recruitment and retention rates among patients and practices. Efficacy was measured by screening and brief intervention rates and the proportion of patients with problem alcohol use. Results: Of 149 practices that were invited, 19 (12.8 %) agreed to participate. At follow up, 13 (81.3 %) practices with 81 (62.8 %) patients were retained. Alcohol screening rates in the intervention group were higher at follow up than in the control group (53 % versus 26 %) as were brief intervention rates (47 % versus 19 %). Four (18 %) people reduced their problem drinking (measured by AUDIT-C), compared to two (7 %) in the control group. Conclusions: Alcohol screening among people receiving opioid agonist treatment in primary care seems feasible. A definitive trial is needed. Such a trial would require over sampling and greater support for participating practices to allow for challenges in recruitment of patients and practices.238Scopus© Citations 10 - PublicationPrevalence of Heavy Alcohol Use Among People Receiving Methadone Following Change to MethadoseBACKGROUND: A recent switch in methadone formulation from methadone (1 mg/mL) to Methadose (10 mg/mL) in British Columbia (BC), Canada, was associated with increased reports of opioid withdrawal and increases in illicit opioid use. Impacts on other forms of drug use have not been assessed. Since alcohol use is common among people receiving Medication-Assisted Treatment (MAT), we assessed if switch was associated with increased prevalence of heavy alcohol use. METHODS: Drawing on data from two open prospective cohort studies of people who inject drugs in Vancouver, BC, generalized estimating equations (GEE) model examined relationship between methadone formulation change and heavy alcohol use, defined by National Institute for Alcohol Abuse and Alcoholism (NIAAA). A sub-analysis examined relationship with heavier drinking defined as at least eight drinks per day on average in last six months. RESULTS: Between June 2013 and May 2015, a total of 787 participants on methadone were eligible for the present analysis, of which 123 (15.6%) reported heavy drinking at least once in last six months. In an unadjusted GEE model, Methadose use was not significantly associated with an increased likelihood of heavy drinking [Odds Ratio (OR) = 1.03; 95% Confidence interval (CI) = 0.87-1.21]. Methadose use was not significantly associated with an increased likelihood of drinking at least eight drinks daily on average (OR = 1.09, 95% CI = 0.72-1.65). CONCLUSIONS: Despite reported changes in opioid use patterns coinciding with the change, there appeared to be no effect of the methadone formulation change on heavy drinking in this setting.
332Scopus© Citations 3 - PublicationThe Impact of Enrolment in Methadone Maintenance Therapy on Initiation of Heavy Drinking among People who Use HeroinBackground: There is equivocal evidence regarding whether people who use heroin substitute heroin for alcohol upon entry to methadone maintenance therapy (MMT). We aimed to examine the impact of MMT enrolment on the onset of heavy drinking among people who use heroin. Methods: We derived data from prospective, community-based cohorts of people who inject drugs in Vancouver, Canada, between December 1, 2005, and May 31, 2014. Multivariable extended Cox regression analysis examined the effect of MMT enrolment on the onset of heavy drinking among people who used heroin at baseline. Results: In total, 357 people who use heroin were included in this study. Of these, 208 (58%) enrolled in MMT at some point during follow-up, and 115 (32%) reported initiating heavy drinking during follow-up for an incidence density of 7.8 events (95% CI 6.4-9.5) per 100 person-years. The incidence density of heavy drinking was significantly lower among those enrolled in MMT at some point during follow-up compared to those who did not (4.6 vs. 16.2; p < 0.001). MMT enrolment was not significantly associated with time to initiate heavy drinking (adjusted relative hazard (ARH) 1.27; 95% CI 0.78-2.07) after adjustment for relevant demographic and substance-use characteristics. Age and cannabis use were the only variables that were independently associated with the time to onset of heavy drinking (ARH 0.74; 95% CI 0.58-0.94 and ARH 2.06; 95% CI 1.32-3.19, respectively). Conclusion: In this study, MMT enrolment did not predict heavy drinking and may even appear to decrease the initiation of heavy drinking. Our findings suggest younger age and cannabis use may predict heavy drinking. These findings could help inform on-going discussions about the effects of opioid agonist therapy on alcohol consumption among people who use heroin.
280Scopus© Citations 10 - PublicationPsychosocial Interventions for Problem Alcohol Use in Primary Care Settings (PINTA): Baseline Feasibility Data(Taylor and Francis, 2015-05-18)
; ; ; ; ; Objective: Many individuals receiving methadone maintenance receive their treatment through their primary care provider. As many also drink alcohol excessively, there is a need to address alcohol use to improve health outcomes for these individuals. We examined problem alcohol use and its treatment among people attending primary care for methadone maintenance treatment, using baseline data from a feasibility study of an evidence-based complex intervention to improve care. Methods: Data on addiction care processes were collected by (1) reviewing clinical records (n = 129) of people who attended 16 general practices for methadone maintenance treatment and (2) administering structured questionnaires to both patients (n = 106) and general practitioners (GPs) (n = 15). Results: Clinical records indicated that 24 patients (19%) were screened for problem alcohol use in the 12 months prior to data collection, with problem alcohol use identified in 14 (58% of those screened, 11% of the full sample). Of those who had positive screening results for problem alcohol use, five received a brief intervention by a GP and none were referred to specialist treatment. Scores on the Alcohol Use Disorders Identification Test (AUDIT) revealed the prevalence of hazardous, harmful, and dependent drinking to be 25% (n = 26), 6% (n = 6), and 16% (n = 17), respectively. The intraclass correlation coefficient (ICC) for the proportion of patients with negative AUDITs was 0.038 (SE = 0.01). The ICCs for screening, brief intervention, and/or referral to treatment (SBIRT) were 0.16 (SE = 0.014), −0.06 (SE = 0.017), and 0.22 (SE = 0.026), respectively. Only 12 (11.3%) AUDIT questionnaires concurred with corresponding clinical records that a patient had any/no problem alcohol use. Regular use of primary care was evident, as 25% had visited their GP more than 12 times during the past 3 months. Conclusions: Comparing clinical records with patients’ experience of SBIRT can shed light on the process of care. Alcohol screening in people who attend primary care for substance use treatment is not routinely conducted. Interventions that enhance the care of problem alcohol use among this high-risk group are a priority.552Scopus© Citations 10