PSYCHOPHARMACOLOGIC APPROACHES TO DEPRESSION IN CHILDREN AND - - PowerPoint PPT Presentation
PSYCHOPHARMACOLOGIC APPROACHES TO DEPRESSION IN CHILDREN AND - - PowerPoint PPT Presentation
PSYCHOPHARMACOLOGIC APPROACHES TO DEPRESSION IN CHILDREN AND ADOLESCENTS Learning Objectives Describe the evidence for selective serotonin reuptake inhibitors (SSRIs) in youth with depressive disorders List predictors of treatment
Learning Objectives
- Describe the evidence for selective serotonin reuptake
inhibitors (SSRIs) in youth with depressive disorders
- List predictors of treatment response in adolescents with
SSRI-resistant major depressive disorder
- List specific patient characteristics that may guide treatment
selection in adolescents with major depressive disorder
Off-Label Medication Use
- Dr. Strawn does intend to discuss the use of off-label/unapproved use of drugs.
Adolescence Preschool School-Age Age 7 Age 4 Puberty Irritability3 Moodiness3 Loss of interest3 Depressed mood, lack of concentration, insomnia, suicidal ideation Somatic complaints Increase in suicide attempts and suicide completion Hypersomnia (increases with age)2
Ryan et al. The Clinical Picture of Major Depression in Children & Adolescents. Arch Gen Psychiatry 1987;44:854-61; Luby et
- al. Modification of DSM-IV Criteria for Depression in Depressed Preschool Children. Am J Psychiatry 2003;160:1169-72;
Lewinsohn et al. Major depression in community adolescents: age at onset, episode duration, and time to recurrence. J Am Acad Child Adolesc Psychiatry 1994;33:809-18.
Weight loss (increases with age)1
Clinical Aspects of Depression Vary
Delusions
EDSP: Incidence and Onset of Depression
Beesdo et al. Incidence and risk patterns of anxiety and depressive disorders and categorization of generalized anxiety disorder. Arch Gen Psychiatry 2010;67:47-57.
Treatment of Depression in Youth
- Multimodal treatment—psychotherapy and pharmacotherapy
- Psychotherapies
- cognitive behavioral,
- supportive,
- group,
- family therapy,
- social skills training, and
- psychodynamic
Strawn and Walkup. The quest to identify the best treatment for pediatric depression. Lancet Psychiatry 2020 (in press); Birmahar et al. Practice Parameter for the Assessment and Treatment of Children and Adolescents with Depressive Disorders. J Am Acad. Child Adolesc Psychiatry 2007;46:1503-26.
- Pharmacotherapies
- SSRIs are 1st line
psychopharmacologic treatment for children with depression
- SNRIs are also being used by
many clinicians, but data are limited
- No positive trials for MAOIs
- No positive trials for TCAs
Treatment of Adolescent Depression Study
Treatment Week Adjusted Mean Children’s Depression Rating Scale Score 45 60 30 6 12 Placebo CBT Alone Fluoxetine alone Fluoxetine + CBT
March et al. JAMA 2004;292:807-20; Emslie et al. J Am Acad Child Adolesc Psychiatry 2006;45:1440–55.
- Fluoxetine + CBT > placebo, p=.001
- Fluoxetine + CBT > fluoxetine, p=.02
- Fluoxetine > CBT alone, p=.01
- Response rates:
- fluoxetine + CBT, 71%;
- fluoxetine alone, 61%;
- CBT alone, 43%;
- placebo, 35%
Symptomatic Improvement in MDD
Tao et al. J Child and Adolesc Psychopharmacology 2010.
Fluoxetine Treatment Week Mean Scale Score 1 2 6 8 10 12 0 1 2 Morbid Thoughts Anhedonia Observed Depression Reported Depression 3 4 3 4
Time Course of Response and Side Effects
Duration of antidepressant treatment
Weight gain (if applicable) Monoamine levels
activation
Symptoms Receptor sensitivity
SSRI Response: How long to wait?
Varigonda et al. JAACAP 2015;54(7):557-64; Strawn et al. JAACAP 2018;57(4):235-44.
Improvement in Depressive Symptoms
2 4 6 8 10
- 0.1
- 0.2
- 0.3
- 0.4
- 0.5
Week
Titration Strategies Based on RCTs
Initial 5 mg 25 mg 5 mg Week 1 10 mg 50 mg 20 mg Week 2 10 mg 50 mg 20 mg Week 3 10 mg 100 mg 20 mg Week 4 10 mg 100 mg 20 mg Optional increases Week 5 15 mg 100 mg 40 mg Week 6 15 mg 150 mg 40 mg Week 7 20 mg 150 mg 40 mg Week 8 20 mg 150 mg 40 mg Week 9 20 mg 150 mg 40 mg Week 10 20 mg 150 mg 40 mg fluoxetine escitalopram sertraline Age 7–11
Titration Strategies Based on RCTs
Initial 5 mg 25 mg 10 mg Week 1 5 mg 50 mg 10 mg Week 2 10 mg 50 mg 20 mg Week 3 10 mg 50 mg 20 mg Week 4 15 mg 75 mg 20 mg Optional increases Week 5 15 mg 100 mg 20 mg Week 6 20 mg 100 mg 20 mg Week 7 20 mg 150 mg 40 mg Week 8 20 mg 150 mg 40 mg Week 9 20 mg 200 mg 60 mg Week 10 20 mg 200 mg 60 mg fluoxetine escitalopram sertraline Age 12–17
Rationale for Focus on Adolescents With Treatment-Resistant Depression (TRD)
- Remission rate around 30%
- TRD associated with increased
morbidity and development of chronic depression
- Identify the next, best steps for SSRI-
resistant depression in adolescents
Brent et al. Treatment of Resistant Depression In Adolescents. JAMA 2008;299(8):901-13. Strawn and Walkup. The quest to identify the best treatment for pediatric
- depression. Lancet Psychiatry 2020 (in press).
Strawn et al. Treatment Resistant Depression in Adolescents: Clinical Features and Measurement of Treatment Resistance. J Child Adolesc.Psychopharm 2020 (in press).
Defining “Adequate” SSRI Treatment
- > 8 weeks
- Last 4+ weeks at equivalent of 40 mg of
fluoxetine
- May use 20 mg equivalent if unable to
tolerate higher dose
Fluoxetine 20 mg Fluoxetine 40 mg
Brent D et al. JAMA 2008;299(8):901-13.
Fluoxetine 40 mg
SSRI Non-responders (>2 mos of tx) Week Week 12 Wk
- 3
Brent D et al. JAMA 2008;299(8):901-13.
N=334 Age: 12–18 years Dx: MDD + no response to 2-month initial SSRI Primary Outcome: CGI-I <2 + >50% decrease in CDRS-R and dCDRS-R. SNRI + CBT Venlafaxine XR SNRI Venlafaxine XR SSRI + CBT Citalopram + CBT Paroxetine + CBT Fluoxetine + CBT SSRI Citalopram Paroxetine Fluoxetine
TORDIA Design
What did they find?
Treatment Week 4 6 2 6 12 SSRI Venlafaxine 3 5 CDRS Score Treatment Week 2 4 6 12 1 3 Antidepressant without CBT Antidepressant + CBT Clinical Global Impression Scale—Severity 5
Brent D et al. JAMA 2008;299(8):901-13.
TORDIA: Primary Findings
TORDIA: Primary Findings
Improvement in Depressive Symptoms
Mills, Croarkin Strawn. Under review 2020.
TORDIA: Primary Findings
Improvement in Depressive Symptoms
Mills, Croarkin Strawn. Under review 2020.
p=0.01
Anhedonia and Treatment Response
- Only symptom that predicts lack of
remission when controlling for others
- Strongest predictor of fewer depression free
days
- Treatment did not target positive affect (only
1.5 sessions of behavioral activation)
- May need to more specifically target behavioral
activation
anhedonia
Drug and Alcohol Use in TORDIA
Goldstein BI et al. J Am Acad Child Adolesc Psychiatry 2009;48(12):1182-92. No response Response Substance Use Severity Time (weeks)
Plasma Concentration and Response
Sakolsky DJ et al. J Clin Psychopharmacol 2011;31(1):92-7.
10 20 30 40 50 60 70 80 VEN FLX/CIT FLX CIT PAR ≥ GM <GM
P= .04
P=.07 P=.005
Adolescent SSRI Exposure
Ramsey et al. Gene-Based Dose Optimization in Children. Annu Rev Pharmacol Toxicol 2020;60:4.1–4.21. 16-year-old female 14-year-old female
Cytochrome P450 Enzymes and Pharmacokinetics in Adolescents
Ramsey et al. Annu Rev Pharmacol Toxicol 2020;60:4.1–4.21.
Pediatric Escitalopram and CYP2C19
Strawn, Poweleit, Ramsey. CYP2C19-guided escitalopram and sertraline dosing in pediatric patients: a pharmacokinetic modeling study. J Child Adol Psychop 2019;29(5):340-7.
Intermediate metabolizer Poor metabolizer Normal metabolizer Rapid metabolizer Ultrarapid metabolizer
Phenotype Equivalent dose Poor metabolizer 10 mg Intermediate metabolizer 15 mg Normal metabolizer 20 mg Rapid metabolizer 25 mg Ultrarapid metabolizer 30 mg
Pediatric Sertraline and CYP2C19
Strawn JR et al. J Child Adol Psychop 2019;29(5):340-7.
Intermediate metabolizer Poor metabolizer Normal metabolizer Rapid metabolizer Ultrarapid metabolizer
Phenotype Equivalent dose Poor metabolizer 50 mg Intermediate metabolizer 125 mg Normal metabolizer 150 mg Rapid metabolizer 175 mg Ultrarapid metabolizer 225 mg
TORDIA: Self-Harm in High Ideators
0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0% SSRI VLX Low High
p=0.75 p=0.02
Adapted from G. Emslie. Annual Meeting of the American Academy of Child & Adolescent Psychiatry 2012.
TORDIA: Treatment and Suicidal Events
Brent DA et al. Am J Psychiatry 2009;166:418–26.
TORDIA: Early Response
20 25 30 35 40 45 50 55 60 65
6 12 24 CDRS-R Week Non-Remitters
Emslie GJ et al. Am J Psychiatry. 2010;167(7):782-91.
TORDIA: Early Response
20 25 30 35 40 45 50 55 60 65
6 12 24 CDRS-R Week Non-Remitters Remitters
Emslie GJ et al. Am J Psychiatry 2010;167(7):782-91.
TORDIA: Insomnia
- Trazodone-treated patients, 6x < likely
to respond than patients who did not receive any soporific (p=0.001)
- Trazodone-treated patients 3x more
likely to self-harm (OR=3, p=0.03)
- No patient receiving trazodone +
paroxetine or fluoxetine responded (0/13)
- Patients treated with other soporifics
responded similarly to those who received no sleep medication (60% vs. 50%)
Shamseddeen W et al. J Child Adolesc Psychopharmacol 2012;22(1):29-36.
Trazodone mCPP
TORDIA: Insomnia
- Trazodone-treated patients, 6x < likely
to respond than patients who did not receive any soporific (p=0.001)
- Trazodone-treated patients 3x more
likely to self-harm (OR=3, p=0.03)
- No patient receiving trazodone +
paroxetine or fluoxetine responded (0/13)
- Patients treated with other soporifics
responded similarly to those who received no sleep medication (60% vs. 50%).
Paroxetine Fluoxetine 2D6 Trazodone mCPP mCPP
Shamseddeen W et al. J Child Adolesc Psychopharmacol 2012;22(1):29-36.
TORDIA Take Homes
- Medication + Therapy > Medication (NNT=7)
- Venlafaxine
- more side effects
- less efficacy than another SSRI as 2nd line
- Medication dose/exposure is IMPORTANT
- COMBO >> MED with comorbidity
- Poorer response:
- substance use,
- family conflict,
- sleep difficulties
When to Adjust Treatment in Adolescent MDD
Gunlicks-stoessel M et al. J Am Acad Child Adolesc Psychiatry 2019;58(1):80-91.
IPT-A Early decision
>20% reduction <20% reduction
IPT-A Early decision
>20% reduction
Continue IPT-A IPT-A Frequency
<20% reduction Fluoxetine
When to Adjust Treatment in Adolescent MDD
Gunlicks-stoessel M et al. J Am Acad Child Adolesc Psychiatry. 2019;58(1):80-91.
IPT-A Early decision
>20% reduction
Continue IPT-A IPT-A Frequency
<20% reduction Fluoxetine
When to Adjust Treatment in Adolescent MDD
IPT-A Late decision
>40% reduction <40% reduction
Gunlicks-stoessel M et al. J Am Acad Child Adolesc Psychiatry. 2019;58(1):80-91.
IPT-A Early decision
>20% reduction
Continue IPT-A IPT-A Frequency
<20% reduction Fluoxetine
When to Adjust Treatment in Adolescent MDD
IPT-A Late decision
>40% reduction
Continue IPT-A IPT-A Frequency
<40% reduction Fluoxetine
Gunlicks-stoessel M et al. J Am Acad Child Adolesc Psychiatry. 2019;58(1):80-91.
TMS in Adolescents With Treatment- Resistant Depression
Croarkin et al. In preparation.
- Multi-site, N=103
- Age 12-21, ATR >1
- No concurrent medication
Left dorsolateral prefrontal cortex stimulation, 5 days/week
- It has been the first medication
trial
- It has been poorly tolerated
- There is <25% improvement
- There is more time to wait (i.e.,
less functional impairment)
- There may be drug interaction
- There may be adherence
concerns
- The initial antidepressant was well
tolerated
- There is a partial response to the
initial agent (>25% improvement)
- There is less time to wait for a
response (e.g., more functional impairment)
Switching vs. Augmentation
Switching Medications
- Direct switch: stop first antidepressant
and start new antidepressant
Keks N et al. Aust Prescr 2016;39(3):76-83;
- Stahl. Stahl’s Essential Psychopharmacology: The Prescriber’s Guide. 4th Edition.
Switching Medications
- Direct switch: stop first antidepressant
and start new antidepressant
- Taper and switch immediately:
gradually taper the first antidepressant and start the new antidepressant immediately after discontinuation
Keks N et al. Aust Prescr 2016;39(3):76-83;
- Stahl. Stahl’s Essential Psychopharmacology: The Prescriber’s Guide. 4th Edition.
Switching Medications
- Direct switch: stop first antidepressant
and start new antidepressant
- Taper and switch immediately:
gradually taper the first antidepressant and start the new antidepressant immediately after discontinuation
- Taper and switch after a washout:
gradually withdraw the first antidepressant then start the new antidepressant after a wash out period
Keks N et al. Aust Prescr 2016;39(3):76-83;
- Stahl. Stahl’s Essential Psychopharmacology: The Prescriber’s Guide. 4th Edition.
Switching Medications
Keks N et al. Aust Prescr 2016;39(3):76-83;
- Stahl. Stahl’s Essential Psychopharmacology: The Prescriber’s Guide. 4th Edition.
- Direct switch: stop first antidepressant
and start new antidepressant
- Taper and switch immediately:
gradually taper the first antidepressant and start the new antidepressant immediately after discontinuation
- Taper and switch after a washout:
gradually withdraw the first antidepressant then start the new antidepressant after a wash out period
- Cross-tapering: taper or maintain the
first antidepressant while beginning the new antidepressant
Conclusions
- Treatment should be multimodal
- Consider augmentation EARLY
- Changing antidepressants and/or adding other treatment
strategies leads to treatment response in 50–60% of patients with treatment-refractory depression
- In patients who fail to respond to an SSRI, a second SSRI
trial is warranted rather than a switch to an SNRI
- Medication dose (and exposure) is important in improving
- utcomes!
- Caution with venlafaxine, particularly those with suicidal
ideation at the beginning of treatment
Posttest Question
Following unsuccessful treatment with paroxetine and fluoxetine, a 15-year-old girl, who meets DSM-5 criteria for major depressive disorder, is prescribed extended-release venlafaxine which is initiated at 37.5 mg daily and titrated to 150 mg daily for 8 weeks. She has had minimal improvement in depressive
- symptoms. Which of the following represents a significant clinical
consideration? 1. Venlafaxine treatment may increase her likelihood of treatment-emergent suicidality 2. Addition of cognitive-behavioral therapy is unlikely to confer any significant benefit 3. Her likelihood of clinical improvement is directly related to her serum venlafaxine concentration 4. Addition of trazodone to manage her initial insomnia may increase her likelihood of remission
A 13-year-old boy meets DSM-5 criteria for major depressive disorder and has been treated with paroxetine 40 mg daily for 8
- weeks. He has had minimal improvement in depressive
- symptoms. Which of the following represents an evidence-based
treatment option? 1. Continue for an additional 4 weeks at the current dose. 2. Discontinue paroxetine and begin duloxetine 30 mg qAM 3. Discontinue paroxetine and begin citalopram 10 mg qAM 4. Augment with buspirone 10 mg BID
Posttest Question
Higher blood levels of which of the following medications have been associated with a greater likelihood of improving in adolescents with treatment-resistant depression? 1. Venlafaxine 2. Citalopram 3. Fluvoxamine 4. Duloxetine