The cost-utility of stepped-care algorithms according to depression guideline recommendations - Results of a state-transition model analysis

Systematic review of structured care pathways in major depressive disorder and bipolar disorder

BACKGROUND

Structured care pathways (SCPs) consist of treatment algorithms that patients advance through with the goal of achieving remission or response. These SCPs facilitate the application of current evidence and adequate treatment, which potentially benefit patients with mood disorders. The aim of this systematic review was to provide an updated synthesis of SCPs for the treatment of depressive disorders and bipolar disorder (BD).

METHOD

PubMed, PsycINFO, and Embase were searched through June 2022 for peer-reviewed studies examining outcomes of SCPs. Eligibility criteria included being published in a peer-reviewed journal in the English language, reporting of intervention used in the SCP, and having quantitative outcomes. Studies Cochrane risk of bias tool was used to assess quality of RCTs.

RESULTS

Thirty-six studies including 15,032 patients were identified for qualitative synthesis. Six studies included patients with BD. The studies were highly heterogeneous in design, outcome measures, and algorithms. More than half of the studies reported superiority of SCPs over treatment as usual, suggesting that the standardized structure and consistent monitoring inherent in SCPs may be contributing to their effectiveness. We also found accumulating evidence supporting feasibility of SCPs in different settings, although dropout rates were generally higher in SCPs. The studies included were limited to being published in peer-reviewed journals in English language. The heterogeneity of studies did not allow quantitative evaluation.

CONCLUSIONS

The findings of our study suggest that SCPs are equally or more effective than treatment as usual in depression and BD. Further studies are required to ascertain their effectiveness, particularly for BD, and to identify factors that influence their feasibility and success.

A Promising Approach to Optimizing Sequential Treatment Decisions for Depression: Markov Decision Process

The most appropriate next step in depression treatment after the initial treatment fails is unclear. This study explores the suitability of the Markov decision process for optimizing sequential treatment decisions for depression. We conducted a formal comparison of a Markov decision process approach and mainstream state-transition models as used in health economic decision analysis to clarify differences in the model structure. We performed two reviews: the first to identify existing applications of the Markov decision process in the field of healthcare and the second to identify existing health economic models for depression. We then illustrated the application of a Markov decision process by reformulating an existing health economic model. This provided input for discussing the suitability of a Markov decision process for solving sequential treatment decisions in depression. The Markov decision process and state-transition models differed in terms of flexibility in modeling actions and rewards. In all, 23 applications of a Markov decision process within the context of somatic disease were included, 16 of which concerned sequential treatment decisions. Most existing health economic models relating to depression have a state-transition structure. The example application replicated the health economic model and enabled additional capacity to make dynamic comparisons of more interventions over time than was possible with traditional state-transition models. Markov decision processes have been successfully applied to address sequential treatment-decision problems, although the results have been published mostly in economics journals that are not related to healthcare. One advantage of a Markov decision process compared with state-transition models is that it allows extended action space: the possibility of making dynamic comparisons of different treatments over time. Within the context of depression, although existing state-transition models are too basic to evaluate sequential treatment decisions, the assumptions of a Markov decision process could be satisfied. The Markov decision process could therefore serve as a powerful model for optimizing sequential treatment in depression. This would require a sufficiently elaborate state-transition model at the cohort or patient level.

Guidelines improve patient outcomes in specialised mental health care: A systematic review and meta-analysis

OBJECTIVE

The uptake of evidence-based guideline recommendations appears to be challenging. In the midst of the discussion on how to overcome these barriers, the question of whether the use of guidelines leads to improved patient outcomes threatens to be overlooked. This study examined the effectiveness of evidence-based guidelines for all psychiatric disorders on patient health outcomes in specialist mental health care. All types of evidence-based guidelines, such as psychological and medication-focused guidelines, were eligible for inclusion. Provider performance was measured as a secondary outcome. Time to remission when treated with the guidelines was also examined.

METHOD

Six databases were searched until 10 August 2020. Studies were selected, and data were extracted independently according to the PRISMA guidelines. Random effects meta-analyses were used to pool estimates across studies. Risk of bias was assessed according to the Cochrane Effective Practice and Organization of Care Review Group criteria.

PROSPERO

CRD42020171311.

RESULTS

The meta-analysis included 18 studies (N = 5380). Guidelines showed a positive significant effect size on the severity of psychopathological symptoms at the patient level when compared to treatment-as-usual (TAU) (d = 0.29, 95%-CI = (0.19, 0.40), p < 0.001). Removal of a potential outlier gave globally the same results with Cohen's d = 0.26. Time to remission was shorter in the guideline treatment compared with TAU (HR = 1.54, 95%-CI = (1.29, 1.84), p = 0.001, n = 3).

CONCLUSIONS

Patients cared for with guideline-adherent treatments improve to a greater degree and more quickly than patients treated with TAU. Knowledge on the mechanisms of change during guideline-adherent treatment needs to be developed further such that we can provide the best possible treatment to patients in routine care.

Predictors of Intensive Treatment in Patients With Obsessive-Compulsive Disorder

Background: Few studies have investigated which patients with obsessive-compulsive disorder (OCD) do not recover through regular cognitive behavior therapy or pharmacotherapy and subsequently end up in intensive treatment like day treatment or inpatient treatment. Knowing the predictors of intensive treatment in these patients is significant because it could prevent intensive treatment. This study has identified predictors of intensive treatment in patients with OCD. Methods: Using 6-year longitudinal data of the Netherlands Obsessive Compulsive Disorder Association (NOCDA), potential predictors of intensive treatment were assessed in patients with OCD (n = 419). Intensive treatment was assessed using the Treatment Inventory Costs in Patients with Psychiatric Disorders (TIC-P). Examined potential predictors were: sociodemographics, and clinical and psychosocial characteristics. Logistic Generalized Estimating Equations was used to estimate to what extent the various characteristics (at baseline, 2- and 4-year assessment) predicted intensive treatment in the following 2 years, averaged over the three assessment periods. Results: Being single, more severe comorbid depression, use of psychotropic medication, and a low quality of life predicted intensive treatment in the following 2 years. Conclusions: Therapists should be aware that patients with OCD who are single, who have more severe comorbid depression, who use psychotropic medication, and who have a low quality of life or a drop in quality of life are at risk for intensive treatment. Intensive treatment might be prevented by focusing regular treatment not only on OCD symptoms but also on comorbid depression and on quality of life. Intensive treatment might be improved by providing extra support in treatment or by adjusting treatment to impairments due to comorbid depressive symptoms or a low quality of life.

Cost-effectiveness of guideline-based stepped and collaborative care versus treatment as usual for patients with depression - a cluster-randomized trial

BACKGROUND

Depression is associated with major patient burden. Its treatment requires complex and collaborative approaches. A stepped care model based on the German National Clinical Practice Guideline "Unipolar Depression" has been shown to be effective. In this study we assess the cost-effectiveness of this guideline based stepped care model versus treatment as usual in depression.

METHODS

This prospective cluster-randomized controlled trial included 737 depressive adult patients. Primary care practices were randomized to an intervention (IG) or a control group (CG). The intervention consisted of a four-level stepped care model. The CG received treatment as usual. A cost-utility analysis from the societal perspective with a time horizon of 12 months was performed. We used quality-adjusted life years (QALY) based on the EQ-5D-3L as effect measure. Resource utilization was assessed by patient questionnaires. Missing values were imputed by 'multiple imputation using chained equations' based on predictive mean matching. We calculated adjusted group differences in costs and effects as well as incremental cost-effectiveness ratios. To describe the statistical and decision uncertainty cost-effectiveness acceptability curves were constructed based on net-benefit regressions with bootstrapped standard errors (1000 replications). The complete sample and subgroups based on depression severity were considered.

RESULTS

We found no statically significant differences in costs and effects between IG and CG. The incremental total societal costs (+€5016; 95%-CI: [-€259;€10,290) and effects (+ 0.008 QALY; 95%-CI: [- 0.030; 0.046]) were higher in the IG in comparison to the CG. Significantly higher costs were found in the IG for outpatient physician services and psychiatrist services in comparison to the CG. Significantly higher total costs and productivity losses in the IG in comparison to the CG were found in the group with severe depression. Incremental cost-effectiveness ratios for the IG in comparison to the CG were unfavourable (complete sample: €627.000/QALY gained; mild depression: dominated; moderately severe depression: €645.154/QALY gained; severe depression: €2082,714/QALY gained) and the probability of cost-effectiveness of the intervention was low, except for the group with moderate depression (ICER: dominance; 70% for willingness-to-pay threshold of €50,000/QALY gained).

CONCLUSIONS

We found no evidence for cost-effectiveness of the intervention in comparison to treatment as usual.

TRIAL REGISTRATION

NCT, NCT01731717 . Registered 22 November 2012 - Retrospectively registered.

European clinical practice guidelines for depression in adults: Are they good enough?

BACKGROUND

Despite the increasing attention given to evidence-based practice, little research has focused on the quality of clinical practice guidelines (CPGs) involving psychotherapy. The goal of the present study was to evaluate the quality of national CPGs for psychological treatments for depression in European countries.

METHODS

A search of the Guidelines International Network's library was conducted. Four guidelines met inclusion criteria for the study and were assessed using the Appraisal of Guidelines for Research and Evaluation II (AGREE-II) platform.

RESULTS

Overall, the guidelines included in the study were found to be of good quality, although two guidelines received low scores for applicability, and some did not provide information on competing interests or potential influences from funding bodies.

LIMITATIONS

Although guidelines were retrieved from a well-known international library, some European guidelines for depression published elsewhere may have been overlooked.

CONCLUSIONS

Results of this study provide support for the high quality of the guidelines reviewed, but also raise some concerns regarding editorial independence and the applicability of the guidelines, areas that should be the focus of improvement in future versions of these guidelines.

Psychotherapists' perspectives on collaboration and stepped care in outpatient psychotherapy-A qualitative study

Objective

Stepped and collaborative care with outpatient psychotherapy as one treatment step is guideline-recommended for mental health care. To date, the experiences and evaluation of psychotherapists regarding collaboration and stepped care have been neglected. In order to improve collaborative mental health care, this qualitative study aimed at identifying psychotherapists’ perspectives and needs within collaboration and stepped care.

Methods

Semi-structured qualitative interviews with 20 German outpatient psychotherapists were conducted and analyzed applying thematic analysis. The analysis was realized in a recursive process to first identify themes and then relate these themes back to the research questions with regard to collaboration and stepped care.

Results

Collaboration mainly took place in small networks, with general practitioners and psychiatrists as the most important partners and psychotherapists wishing to intensify collaboration. Main barriers for collaboration were seen in deficient resources and remuneration and in a perceived lack of esteem by other medical specialties. Stepped care was appreciated for intensified collaboration and low-threshold access to care. Doubts were cast on its implementation within current health care conditions, worries concerned a primacy of economic principles instead of patient-orientation. Among further needs, psychotherapists demanded increased knowledge about psychotherapy, especially among general practitioners.

Conclusion

Psychotherapists expressed ambivalent attitudes towards stepped and collaborative care, substantially influenced by health care conditions and the perceived own standing among care providers. Psychotherapists’ needs within stepped care comprise intensified collaboration, sufficient time, personal and financial resources for collaboration and opportunities for a constructive interprofessional dialogue.

Recognition of personality disorder and anxiety disorder comorbidity in patients treated for depression in secondary psychiatric care

OBJECTIVES

Depression is a common illness with substantial economic consequences for society and a great burden for affected individuals. About 30% of patients with depression do not respond to repeated treatments. Psychiatric comorbidity is known to affect duration, recurrence and treatment outcome of depression. However, there is a lack of knowledge on the extent to which psychiatric comorbidity is identified in the clinical setting for depressed patients in secondary psychiatric care. Therefore, the aim of this study was to compare the agreement between traditional diagnostic assessment (TDA) and a structured and comprehensive diagnostic procedure (SCDP) for identification of personality and anxiety disorder comorbidity in depressed patients in secondary psychiatric care.

METHODS

274 patients aged 18-77 were referred from four secondary psychiatric care clinics in Sweden during 2012-2017. ICD-10 diagnoses according to TDA (mostly unstructured by psychiatric specialist and residents in psychiatry), were retrieved from medical records and compared to diagnoses resulting from the SCDP in the study. This included the Mini International Neuropsychiatric Interview, the Structured Interview for DSM Axis II Personality Disorders and semi-structured questions on psychosocial circumstances, life-events, psychiatric symptoms, psychiatric treatments, substance use, and suicidal and self-harm behaviour. The assessment was carried out by psychiatric specialists or by residents in psychiatry with at least three years of psychiatric training.

RESULTS

SCDP identified personality disorder comorbidity in 43% of the patients compared to 11% in TDA (p<0,0001). Anxiety disorder comorbidity was identified in 58% with SCDP compared to 12% with TDA (p<0,0001).

CONCLUSIONS

Important psychiatric comorbidity seems to be unrecognized in depressive patients when using TDA, which is routine in secondary psychiatric care. Comorbidities are better identified using the proposed model involving structured and semi-structured interviews together with clinical evaluations by clinical experts.

Barriers to discontinuing antidepressants in patients with depressive and anxiety disorders: a review of the literature and clinical recommendations

Use of antidepressants has recently increased, mainly caused by the increase of long-term users. Although evidence-based indications for long-term use are lacking, it is assumed that long-term use is unnecessary or undesirable in some patients. Perceived barriers to discontinuing antidepressants contribute to unnecessary or undesirable long-term use. Identifying barriers prior to, during and following discontinuation may enable strategies to overcome them. This narrative review summarises relevant qualitative and quantitative articles on perceived barriers to discontinuing antidepressants and provides recommendations for clinical practice. We can conclude that implications for clinical practice are diverse and the most important barriers experienced by patients and physicians include the fear of relapse or recurrence, insufficient evaluation and monitoring, withdrawal symptoms, and actual relapse or recurrence.

Redesigning Care for OSA

Constrained by a limited supply of specialized personnel, health systems face a challenge in caring for the large number of patients with OSA. The complexity of this challenge is heightened by the varied clinical presentations of OSA and the diversity of treatment approaches. Innovations such as simplified home-based care models and the incorporation of nonspecialist providers have shown promise in the management of uncomplicated patients, producing comparable outcomes to the resource-intensive traditional approach. However, it is unclear if these innovations can meet the needs of all patients with OSA, including those with mild disease, atypical presentations, and certain comorbid medical and mental health conditions. This review discusses the diversity of needs in OSA care, the evidence base behind recent care innovations, and the potential limitations of each innovation in meeting the diversity of care needs. We propose how these innovations can fit within the stepped care and hub and spoke models in a way that addresses the full spectrum of OSA, and we discuss future research directions to assess the deployment of these innovations.

The cost-effectiveness of stepped care for the treatment of anxiety disorders in adults: A model-based economic analysis for the Australian setting

OBJECTIVE

To evaluate the cost-effectiveness of stepped care compared to care as usual (CAU) for the treatment of adults with mild-to-moderate anxiety disorders from a health sector perspective in the Australian setting.

METHOD

A decision tree model was constructed to estimate the cost per disability adjusted life year (DALY) averted over a 12-month time horizon. The model compared a three-step stepped care intervention to CAU. Stepped care included an initial phase of guided self-help, followed by face-to-face cognitive behavioural therapy, and pharmacotherapy as the final step. The model adopted a health sector perspective, used epidemiological parameters and disability weights obtained from the Global Burden of Disease Study 2013. Effect sizes were derived from a randomized trial of stepped care and a longitudinal cohort study. Costs were expressed in 2013 Australian dollars (A$). Multivariate probabilistic and univariate sensitivity analyses were performed.

RESULTS

Stepped care was found to be cost-effective compared to CAU with an incremental cost-effective ratio of A$3093 per DALY averted. One-hundred percent of the uncertainty iterations fell below the A$50,000 per DALY averted willingness-to-pay threshold commonly used in Australia. The evaluation was most sensitive to changes in diagnosis rates and effect sizes.

CONCLUSION

A three-step model of stepped care appears to be cost-effective for the treatment of adults with mild to moderate anxiety disorders from the Australian health sector perspective. These results can provide some assurance to decision-makers that stepped care represents an efficient use of health care resources.

Smooth Sailing: A Pilot Study of an Online, School-Based, Mental Health Service for Depression and Anxiety

Background: Schools play an important role in supporting young people's mental health, but face challenges identifying and responding to students in need of care. To assist secondary schools, the Black Dog Institute has developed an online, school-based, mental health service (Smooth Sailing). Delivered in the classroom, Smooth Sailing uses a website to screen, assess, allocate, and deliver care for depression and anxiety. The service is based on the principles of stepped care, offering treatments with varied intensity and follow-up by a school counselor when necessary. The current study aimed to evaluate the feasibility, acceptability, and safety of this new type of service among secondary school students. Methods: Between February and June 2017, a single-arm, pre-post, pilot study was conducted among students from four NSW secondary schools. Schools were given access to the service for 6 weeks. Feasibility measures (consent rates and step allocations), acceptability measures (service use and satisfaction) and safety measures (deterioration in help-seeking intention scores and mental health symptoms) were assessed at baseline and completion of the 6-week trial period. Results: A total of 59 students took part in the service pilot (mean age, 14.57 years; SD, 0.89 years; range, 13-16 years). At baseline, 18.64% of students were found to require follow-up from the school counselor, and 80% of these were new cases. Although completion of the online modules was low, service satisfaction was high. At 6 weeks, the mean scores for help-seeking, depression, and anxiety remained relatively stable or improved. Conclusions: The current study presents important findings for the development and implementation of an online mental health service that screens students' mental health and allocates care accordingly, all within the school setting. Although the findings provide some support for the feasibility, acceptability, and safety, service improvements are needed. The modifications outlined are likely to improve the quality of the service and its effectiveness. Trial Registration: Australian New Zealand Clinical Trials Registry (ANZCTR): ACTRN12617000977370.

The Stepped Care Intervention to Suppress Viral Load in Youth Living With HIV: Protocol for a Randomized Controlled Trial

Background

Among youth living with HIV (YLH) aged 12-24 years who have health care in the United States, only 30% to 40% are virally suppressed. YLH must achieve viral suppression in order to reduce the probability of infecting others as well as increasing the length and quality of their own life.

Objective

This randomized controlled trial aimed to evaluate the efficacy of an Enhanced Standard Care condition (n=110) compared to an Enhanced Stepped Care intervention condition (n=110) to increase viral suppression among YLH aged 12-24 years with established infection (not acutely infected).

Methods

YLH (N=220) who are not virally suppressed will be identified at homeless shelters, health clinics, and gay-identified community-based organizations in Los Angeles, CA, and New Orleans, LA. Informed consent will be obtained from all participants. YLH will be randomly assigned to one of two study conditions: Enhanced Standard Care, which includes standard clinical care plus an automated messaging and monitoring intervention (AMMI), or an Enhanced Stepped Care, which includes three levels of intervention (AMMI, Peer Support via social media plus AMMI, or Coaching plus Peer Support and AMMI). The primary outcome is viral suppression of HIV, and YLH will be assessed at 4-month intervals for 24 months. For the Enhanced Stepped Care intervention group, those who do not achieve viral suppression (via blood draw, viral load<200 copies/mL) at any 4-month assessment will “step up” to the next level of intervention. Secondary outcomes will be retention in care, antiretroviral therapy adherence, alcohol use, substance use, sexual behavior, and mental health symptoms.

Results

Recruitment for this study began in June 2017 and is ongoing. We estimate data collection to be completed by the end of 2020.

Conclusions

This is the first known application of an Enhanced Stepped Care intervention model for YLH. By providing the lowest level of intervention needed to achieve viral suppression, this model has the potential to be a cost-effective method of helping YLH achieve viral suppression and improve their quality of life.

Trial Registration

ClinicalTrials.gov NCT03109431; https://clinicaltrials.gov/ct2/show/NCT03109431

International Registered Report Identifier (IRRID)

DERR1-10.2196/10791