Behavioural Activation for Depression By the Non Specialist

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Presentation transcript:

Behavioural Activation for Depression By the Non Specialist David Ekers PhD, MSc ENB 650, RMN Senior Visiting Research Fellow/Nurse Consultant Primary Care Mental Health

Overview Introduce BA Completed research Where to next

Behavioural Activation – what is it? Contextual rational for depression Places depression in our relationship with our world Largely forgotten with advent of CBT in 1980s Simple – ‘parsimonious’ therapy with ‘less moving parts’ This may lend BA to wider dissemination

Our BA Research

All experienced therapists/same people different therapy doesn’t help Lots of small studies variable results

MRC Methods for Developing and Evaluating Complex Interventions

Behavioural activation delivered by the non specialist: Phase II randomised controlled trial (MH Nurses)

Results

Cost more/less effective Cost more/more effective Cost less/less effective Cost less/more effective

BA cycle used in current studies (Ekers et al 2011)

COBRA Study. NIHR HTA funded multi centre RCT COBRA Study. NIHR HTA funded multi centre RCT. Open access- The Lancet July 2016

COBRA COBRA is a two-arm Phase III, non-inferiority randomised controlled trial of a psychological intervention: Behavioural Activation (BA) N=440. The COBRA programme of research seeks to answer two interlinked questions: What is the clinical effectiveness of BA compared to CBT for depressed adults in terms of depression treatment response measured by the PHQ9 at six, 12 and 18 months? What is the cost-effectiveness of BA compared to CBT at 18 months?

Interventions BA and CBT- both active psychological treatments which have previously demonstrated positive effects for people with depression 20 face to face one-hour duration sessions over 16 weeks with the option of four additional booster sessions. BA: delivered by band 5 qualified Psychological Wellbeing Practitioners CBT: delivered by band 7 qualified CBT therapists Both groups of therapists received five days of protocol specific training and weekly supervision from a relevant expert Quality and fidelity assessed through independently rated audio-tapes and session records

Primary Outcome – PHQ-9 Primary analysis

CBT BA Adjusted A-B difference* P-value N Mean (SD) Mean (95% CI) Baseline 219 17.4 (4.8) 221 17.7 (4.8) - Intention to treat 12-months 189 8.4 (7.5) 175 8.4 (7.0) 0.1 (-1.3 to 1.5) 0.89 Per protocol 151 7.9 (7.3) 135 7.8 (6.5) 0.0 (-1.5 to 1.6) 0.99 *Adjusted for baseline PHQ9, and stratification variables (i.e., symptom severity (PHQ < 19, PHQ ≥ 19), site (Devon, Durham, Leeds), antidepressant use (currently taking anti-depressant medication, not currently taking anti-depression medication)

Non-Inferiority at primary endpoint Non inferiority margin

Secondary Outcomes - GAD Primary analysis CBT BA Adjusted difference* P-value N Mean (SD) Mean (95% CI) Baseline 219 12.6 (5.1) 221 12.7 (5.1) - Intention to treat 12-months 176 6.3 (6.0) 161 6.4 (5.9) 0.1 (1.3 to -1.0) 0.82 Per protocol 146 6.0 (5.8) 129 5.9 (5.5) 0.01 (-1.3 to 1.2) 0.95 *Adjusted for baseline GAD, and stratification variables (i.e., symptom severity (PHQ < 19, PHQ ≥ 19), site (Devon, Durham, Leeds), antidepressant use (currently taking anti-depressant medication, not currently taking anti-depression medication)

SCID Caseness Across Trial (repeated measures logistic regression model) Intention to Treat Treatment Baseline 6 months 12 months 18 months CBT n/N (%) 219/219 (100%) 49/171 (29%) 37/163 (23%) 34/162 (21%) BA 221/221 51/167 (31%) 31/154 (20%) 35/156 (22%) P-value for between groups comparison: P=0.73 Per protocol Treatment Baseline 6 months 12 months 18 months CBT n/N (%) 158/158 (100%) 37/140 (26%) 30/141 (21%) 25/137 (18%) BA 147/147 42/138 (30%) 24/128 25/125 (20%) P-value for between groups comparison: P=0.80

Cost Effectiveness Plane 6% 4% 66% 24% -£1000 -£500 £0 £500 Difference in cost -.1 -.05 .05 .1 .15 Difference in QALY £20k/QALY threshold line 95% confidence ellipse Cost More/Less Effective Cost More/More Effective Cost Less/Less Effective Cost Less/More Effective

Summary of Health Economics Probability of BA being cost-effective vs. CBT does not fall below 75% and is closer to 80% at the NICE preferred willingness to pay level of £20,000 to £30,000 per QALY. Potentially very interesting for NHS providers

Qualitative study

Who took part? 705 participants Over 65s – mean age 77 (range 65 – 99 yrs) Whooley +ve with DSM-IV Subthreshold depression Very few exclusions Recently bereaved Alcohol dependence Terminal illness Cognitive impairment (ascertained by the GP) Comorbidity OK – 80% or more had 2+ LTCs

Intervention Case management (PWPs) GP liaison as needed Brief psychological intervention – Behavioural Activation 6-8 sessions over the phone GP liaison as needed Scheduled follow up Session by session symptom profiling – GDS10 Medication management if needed Stepping up Vs TAU

PHQ9 scores at 4 and 12 months

Is there a preventative element to BA in this delivery model ? Odds of case level depression were halved at 12 months OR = 1.98 (1.21 to 3.25)

Clinical Implications from studies BA delivered by less experienced mental health workers leads to identical clinical outcomes than those of specialists at a financial saving to clinical providers of 21% compared with the costs of providing CBT. Non specialists providing brief BA can work on mild symptoms and have a preventative effect in at risk groups

Next steps New studies

Community Pharmacy mood Intervention Study CHEMIST? Based in community pharmacies Health promotion/depression prevention Provide Enhanced Support Intervention (ES Intervention) to adults with LTCs and low mood within a ‘Collaborative Care’ framework (adapted from CASPER) Enhanced Support Intervention delivered by trained pharmacy staff (‘Healthy Living Advisors’)

CHEMIST study Feasibility and pilot study (NIHR PHR 3 years) Adapt existing training and self-help materials for use in community pharmacies Can we train community pharmacy staff to deliver the ES Intervention Conduct a pilot randomised controlled trial

Feasibility findings Pharmacy staff/participants viewed community pharmacies as appropriate to support people with mental health problems using a non-stigmatising approach. Able to train health promotion staff with no previous background in MH to deliver the intervention Materials were found to be helpful and acceptable to patients and staff

Thank You David.ekers@nhs.net Thanks to TEWV NHS FT for their support COBRA/CASPER/CHEMIST study teams Participants in the research studies listed