bipolar abbassia
DESCRIPTION
TRANSCRIPT
Bipolar Disorder:Challenges & Horizons
Prof. Hisham RamyProfessor of Psychiatry (ASU)Consultant Psychiatrist (UK)
Secretary GeneralNational Mental Health Commission
Salah Jaheen
أقوم ساعاتقلبى الصبح
حزين الباب بره أطل الحنين ياخدنى
ضاع لقيته اللىاشتريته واللى
انباع قابلته واللى
وفات راح األنين
بمبى بمبىبقى الحياة
بمبى لونها
جنبك انا وجنبى وانت
ونغمض بوسةنلقى.. ويلال
حتى الضلمة
بمبى
Historical AspectsHippocrates
Historical AspectsAretaeus of Cappadocia
Historical AspectsAvicenna
Historical AspectsRobert Burton
Historical AspectsThe French
Historical AspectsKraepelin
Historical AspectsLeonard & Angst
Historical AspectsAkiskal
ChallengesWhat is Bipolar Disorder ?
• It is a spectrum of affective episodes including:
• Major depressive episode
• Manic episode
• Mixed episode
• Hypomanic episode
• 5. Unspecified
The DSM-IV categorizes it into:
Bipolar I Disorder
Bipolar II Disorder
Cyclothymia
Bipolar N.O.S.
ChallengesDSM-IV-TR: Complex
Disorder Five types of episodes:
Four subtypes
Four severity levels
Three course specifiers With or without inter-episode recovery
Seasonal pattern
Rapid cycling
American Psychiatric Association. (2000). Diagnostic and Statistical Manual of Mental Disorders-Fourth Edition-Text Revision. Washington, DC: Author.
Challenges Complex Disorder
Bipolar spectrum:
Bipolar I: Depression &mania
Bipolar II: Depression & hypomania
Bipolar II-½: Depression & cyclothymic temp.
Bipolar III: Depression & manic switch.
Bipolar III-½: Depression & mood swings &SUD.
Bipolar IV: Depression & FH &/ or hyperthymia.
Sigmund Freud
Mania is nothing but a reaction formation to Depression
Challenges
• Prevalence: NCSR 2005
• Bipolar I: 2%
• Bipolar II: 1.5%
• Cyclothymia: 0.5%
• Bipolar Spectrum: 6%
Age <15 years33%
Age of Onset
Age 15–19 years27%
Age 20 years
39%
Hirschfeld RM, et al. J Clin Psychiatry 2003;64:161-174
Time spent in episodes
Patients with bipolar disorder regularly switch between mania and depression, and the amount of time in each state can vary
Percentage time spent in each state of bipolar disorder
1Judd et al. Arch Gen Psychiatry 2002;59:530-72Judd et al. Arch Gen Psychiatry 2003;60:261-93Kupka et al. Bipolar Disord 2007;9:531-5
6%
9%
53%32%
50%
2%
47%
1%
36%
13%
48%
3%
37%
10%
51%
2%
BP II, n=86, m=13.4 years2
BP I, n=146, m=12.8 years1
BP II, n=102, m=1 year3
BP I, n=405, m=1 year3
m, mood diaries
No symptoms
Depressive
Manic / hypomanic
Mixed / rapid cycling
No symptoms
Depressive
Manic / hypomanic
Mixed / rapid cycling
21
Psychiatric comorbidity
Kessler RC, et al. Psychol Med 1997;27:1079-1089
0
20
40
60
80
100
Any anxiety
Anysubstance
Alcoholdependence
Drugdependence
Conduct Adult antisocialbehaviour
Pat
ien
ts (
%)
29%
59%
41%
61%
71%
93%
Kessler RC, et al. Arch Gen Psychiatry 2005;62:590-592National Comorbidity Survey Replication (NCS-R)
The annual lost human capital due to bipolar disorder is larger
than that due to major depression
Bipolar I or II Major depression
Prevalence in the workplace Annual lost days per ill worker
Bipolar I or II
3.1%
49.5
6.4%
31.9
Major depression
p<0.05
Prevalence and impact of bipolar disorder in the workplace (NCS-R)
Mortality in bipolar disorder
220 bipolar inpatients followed up for 22 years or more
*p<0.001 vs treated patients
Angst F, et al. J Affect Disord 2002;68:167-181
Sta
nd
ard
ised
mo
rtal
ity
rati
o
* * * *
*
Cancer Vascular diseases
Accidentor
intoxication
Suicide Othercauses
Total0
5
10
15
20
25
30
35
Untreated Treated
Personal tragedies: Van Gogh
• Born in 1853
• July 1890, at the age of 37, he walked into the fields and shot himself in the chest with a revolver
• His last words "La tristesse durera toujours"
Personal Tragedies: Hemingway
born on July 21, 1899
Several suicide attempts
1961 shot himself.
Personal Tragedies: Vivian Leih
Born in 1913
Throughout her possession by that uncannily evil monster, manic depression, with its deadly ever-tightening spirals.
Died in 1967
80% of patients that screened positive for bipolar disorder* using the MDQ had not previously been diagnosed as bipolar
Hirschfeld RM, et al. J Clin Psychiatry 2003;64:53-59
MDQ, mood disorder questionnaire
*type I or II
Bipolar disorder:an under-recognised mood disorder
The magnitude of the problem
High Rate of Misdiagnosis 600 bipolar patients:
35% were symptomatic for more than10 years before correct diagnosis 10+ years
Most frequent misdiagnosis:Most frequent misdiagnosis:
Unipolar depression60%
National Depressive and Manic-Depressive Association (NDMDA), Constituent Survey. 2001; Chicago, IL.
Hirschfeld RMA, et al. J Clin Psychiatry. 2003;64:161-174.
Prior diagnoses in bipolar patients
Depression 60%
Anxiety disorder 26%
Schizophrenia 18%
Personality disorders 17%
Substance abuse 14%
Schizo-affective disorder 11%
Hirschfeld RM, et al. J Clin Psychiatry 2003;64:161-174
The international BRIDGE study (Young et al, 2009),
• sample of 5,600 patients with a major depressive episode
• evaluated:
• using clinical judgment at entry
• then using broader systematic assessment to elicit reports of hypomania/mania.
• The frequency of bipolar disorder
• which was 29% at entry based on clinical judgment,
• 47% by systematic evaluation of hypomania/mania according to the bipolarity specifier (broader definition of bipolar disorder than DSM IV).
What is the Solution???What is the Solution???
Improving Recognition
Utilize family or other collateral informants Assess longitudinal factors
Determine age of first-episode onset Evaluate course to establish quality of inter-episode recovery
Evaluate family history Review response prior to treatment Assess common conditions in differential diagnosis
History Laboratories
Assess common comorbidities Aim to estimate diagnostic confidence
Sachs G. FOCUS. 2007;5(1):3-13.
Nassir Ghaemi S et al. Can J Psychiatry 2002;47:125–34.Kaye NS. J Am Board Fam Pract 2005;18:271–281.
Identifying features of bipolar depression
Family history of BD in a first-degree relative
Antidepressant-induced mania or hypomania
Hyperthymic or cyclothymic temperament
Recurrent major depressive episodes (>3)
Brief major depressive episodes (on average, <3 months)
Atypical depressive symptoms
Psychotic major depressive episodes
Nassir Ghaemi S et al. Can J Psychiatry 2002;47:125–134.Kaye NS. J Am Board Fam Pract 2005;18:271–281.
Identifying features of bipolar depression
Early age of onset of major depressive episode (<25 years)
Post-partum depression Seasonality Rapid on/off pattern, mood lability Wearing off of antidepressant efficacy (acute but not
prophylactic response) Lack of response to ≥3 antidepressant treatment trials Mixed depression, (psychomotor agitation, irritability,
racing/crowded thoughts) Substance abuse
Goldberg JF et al. Am J Psychiatry 2009;166:173–181.
Pro
port
ion
of p
atie
nts
(%)
Pressured sp
eech0
10
20
30
40
50
60
≥4 symptoms1–3 symptoms
Increase
d
self e
steem
Decrease
d
need for s
leep
Flight o
f ideas/
racing th
oughts
Distracti
biity
Increase
d activit
y
High risk b
ehavior
9.9%8.7%
15.8%
29.9%
53.9%
10.7% 9.3%
Symptoms of mania during a bipolar depressive episode
In the NIMH* Systematic Treatment Enhancement Program for BD (NIMH STEP BD), 69% had at least one manic symptom. Most prevalent symptoms: distractibility, racing thoughts, rapid speech, increased activity
*NIMH = National Institute of Mental Health
Hirschfeld RM et al. Am J Psychiatry 2000;157:1873–1875.
Mood Disorder Questionnaire (MDQ)
Brief, self-report screening instrument
Contains 13 questions on manic symptomatology
Can detect bipolar I but less sensitive for bipolar II
Positive screen if at least 7 symptom items, co-occurrence of at least 2 symptoms and moderate to severe impairment
Available at http://www.dbsalliance.org/pdfs/MDQ.pdf
Angst J et al. J Affect Disord 2005;88:217–233.
Hypomania Checklist (HCL-32)
Self-rating questionnaire
Core of the instrument consists of a checklist of 32 hypomanic symptoms
Screening tool for hypomania but no difference between bipolar I and II
Individuals with a total score of 14 or more are potentially bipolar
Available at http://www.psycheducation.org/depression/HCL–32.htm
Nassir Ghaemi S et al. J Affect Disord 2005;84:273–277.
Bipolar Spectrum Diagnostic Scale (BSDS)
Self-reporting questionnaire
Consists of a descriptive story that captures subtle features of bipolar symptoms and course
Equal sensitivity for bipolar I and II/not otherwise specified
Optimum threshold for likelihood of bipolar disorder: Score ≥13
Available at http://www.psycheducation.org/depression/BSDS.htm
Post RM, Altshuler LL. In: Kaplan & Sadock ’s Comprehensive Textbook of Psychiatry. Mood disorders: Treatment of Bipolar Disorders. 2009.
Graphing the longitudinal course of bipolar disease
Collect retrospective patient’s course of illness
Urge patients to continue this on a prospective basis
Provides a clear picture of the earlier course of illness, the best predictor of the future episode pattern
Clarifies pattern of prior medication responsiveness
Facilitates the recognition of low-level manic symptoms
Encourages the patient’s collaboration
Post RM, Altshuler LL. In: Kaplan & Sadock ’s Comprehensive Textbook of Psychiatry. Mood disorders: Treatment of Bipolar Disorders. 2009.
Graphing the prospective course of mood disorders
PROSPECTIVE (DAILY) RATINGS
Incapacitated
Much
Some}Difficulty functioning
Not
impaired
Not impaired
Some
Much}Difficulty functioning
IncapacitatedDep
ress
ion
Man
ia
Severe
High Moderate
Low Moderate
Mild
Mild
Low Moderate
High Moderate
Severe
Co
mo
rbid
Sym
pto
ms
Imp
act
(–4
to +
4)
Lif
e
Eve
nts
Alcohol
Substance use
panic attacksPA PA
Si = suicideattempt
Hosp
Lithium
Antidepressant
MAOI
Dysphoric Mania
Approximate Dates
Lamotrigine
Carbamazepine / Oxcarbazepine
Atypical Antipsychotics
Benzodiazepines / Gabapentin
SWITCHESPER MONTH
(i.e. = 4 = ultra rapid)
SWITCHESPER DAY(i.e. ultra – ultra rapid cycling, or ultradian cycling)
(2/1
0/9
0) P
rom
oti
on
(2/1
2)
All
nig
hte
r
(3/1
) A
rres
ted
fo
r sp
eed
ing
(8/2
3/9
1) D
og
die
d
(1/1
5/9
2) G
ot
ma
rrie
d
(6/2
0/0
2) L
ost
jo
bMAOI = monoamine oxidase inhibitor; PA = panic attack; Si = suicide attempt
Treatment aims in bipolar disorder
Managementof comorbid conditions
Ultimate treatment goal – mood stabilisation
Vieta 2005
Short term
- control of acute symptoms
- prevention of relapse
- treatment acceptance / adherence
Long term
Treatment challenges in bipolar disorder
Evans 2000; Hirschfeld 2003a, 2003b Judd et al 2002, 2003; Citrome 2005; Kupka et al 2007
Initial diagnosis Bipolar disorder is often unrecognised and undiagnosed
Comorbidities Common, can hinder diagnosis
Phenotypes Bipolar I vs bipolar II, rapid cycling, mixed states
DepressionPredominant symptomatic phase,
can lead to misdiagnosis
Chronic disorderNeed for long-term symptom stability across
both poles
IntroductionPlan.
Goals.
Place.
Tools.
Input.
Input
Patient.
Informant.
Records.
Research.
GoalsShort term:
Remission.
Decrease risks.
Long term:
Maintain Remission.
Good quality of life.
GoalsBipolar disorder is characterised by recurrent episodes of major disturbance
at the two ‘poles’ of mood disturbance: mania and depression
Place
Home (outpatient).
Day hospital.
Hospital.
Tools
Pharmacotherapy.
Psychosocial treatment.
ECT.
Others.
Evidence based Tools
Pharmacotherapy & ECT
Prodrome Detection: Perry and colleagues
Psycho education: Colom and colleagues
Cognitive Therapy: Lam and colleagues,
Interpersonal and Social Rhythm Therapy (IPSRT) : Frank and colleagues
Family-Focused Therapy (FFT) and Integrated FFT/IPSRT: Miklowitz and colleagues
DrugsChoice.
Dose.
Duration.
Psychosocial Treatment
Choice.
Duration.
Setting.
Frequency.
TypesAncient Treatments
exorcism, caged like animals, beaten, burned, castrated,
mutilated, blood replaced with animal’s blood
Cognitive Behaviour Therapy (CBT)
The main assumption behind CBT is that psychological difficulties depend on how people think or interpret events (cognitions), how people respond to these events (behaviour), and how it makes them feel (emotions).
CBT aims to break the vicious cycle between thoughts, feelings and behaviours by helping people to learn more useful ways of thinking and coping.
Psycho education
Information (counselling).
EE management.
Medication management.
Support.
Compliance Enhancement
Information.
Schedule.
Life chart.
Models.
Therapeutic alliance.
OthersProdrome Detection: Perry and colleagues
Interpersonal and Social Rhythm Therapy (IPSRT) : Frank and colleagues
ECT
Indications.
Frequency.
Number.
Procedures.
Electroconvulsive Therapy (ECT)
ECT – Efficacy
Gold standard for treatment of MDD
Response rate 70-90% compared to 40-60% with pharmacotherapy
Highly efficacious in Tx of catatonia and schizophrenia with positive Sx
ECT - Procedure
Pre-procedure – NPO, flumazenil
Performed in ECT suite, bedside or ICU
Induction with rapidly acting anesthetic (methohexital, ketamine)
Paralysis with rapidly acting NM blocker (succinylcholine)
Application of electric current to skull
Generalized tonic-clonic SZ (0.5 - 2min)
Recovery in 1-2 hours
ECT – Safety
Mortality rate depends on medical comorbidity Healthy individual: 1:10,000 mortalityRisk / benefit assessment is crucial
Common Side Effects, Temporary:Headache, myalgias Cognitive: anterograde, retrograde amnesia – worse with bilateral electrode placement
Uncommon / Rare Adverse Events Arrhythmias, MI, CVA, delirium, status epilepticus, prolonged apnea, Tx emergent mania
Mood Stabilizers
Lithium
Valproate
Carbamazepine
Lamotrigine
Topiramate (not effective)
Gabapentin (not effective)
Atypical Antipsychotics
Ideally
The ideal treatment for bipolar disorder would achieve mood stabilisation by effectively treating mania and depression and preventing relapse among patients with bipolar I and II disorder and rapid cyclers
Mood Stabilizer
“Must show efficacy in the treatment of acute mania and/or depression and the prophylaxis of subsequent manic or depressive episodes, not worsen mood symptoms or acute episodes, and not increase the likelihood of an affective switch or cycling.”
Expert Consensus Guidelines
The Evolution of Therapies for Bipolar Disorder
1950 1960 1970 1980 1990 2000
Chlorpromazine*TrifluoperazineFluphenazineThioridazineHaloperidolMesoridazine
Anticonvulsants
1940
ECT Lithium
First-generation antipsychotics and antidepressants
Risperidone+
Clozapine
Anticonvulsants
GabapentinLamotrigineTopiramateOxcarbazepine
Second-generation antipsychotics and antidepressants
Olanzapine*Quetiapine+
Ziprasidone+
CarbamazepineValproate
2002
Aripiprazole+Asenipine
ECT = electroconvulsive therapy
2. Drug Concentration
AbsorptionDistributionMetabolismElimination
Drug ResponseDependent on 3 Variables:
1. Affinity
ReceptorsEnzymes
Uptake Pumps
3. Patient
GeneticsAge
DiseaseEnvironment
Clinical Response
The Perfect Mood StabilizerThe Perfect Mood Stabilizer
Efficacy inEfficacy inManiaMania
SafetySafetyTolerabilityTolerability
Efficacy inEfficacy inDepressionDepression
A Lousy Mood StabilizerA Lousy Mood Stabilizer
Efficacy inEfficacy inManiaMania
SafetySafetyTolerabilityTolerability
Efficacy inEfficacy inDepressionDepression
LithiumLithium
Efficacy inEfficacy inManiaMania
SafetySafetyTolerabilityTolerability
Efficacy inEfficacy inDepressionDepression
DivalproexDivalproex
Efficacy inEfficacy inManiaMania
SafetySafetyTolerabilityTolerability
Efficacy inEfficacy inDepressionDepression
The Perfect Mood StabilizerThe Perfect Mood Stabilizer
Efficacy inEfficacy inManiaMania
SafetySafetyTolerabilityTolerability
Efficacy inEfficacy inDepressionDepression
A Lousy Mood StabilizerA Lousy Mood Stabilizer
Efficacy inEfficacy inManiaMania
SafetySafetyTolerabilityTolerability
Efficacy inEfficacy inDepressionDepression
LamotrigineLamotrigine
Efficacy inEfficacy inManiaMania
SafetySafetyTolerabilityTolerability
Efficacy inEfficacy inDepressionDepression
OlanzapineOlanzapine
Efficacy inEfficacy inManiaMania
SafetySafetyTolerabilityTolerability
Efficacy inEfficacy inDepressionDepression
FDA-approved treatments
Physicians’ Desk Reference 2007
Mania Mixed Maintenance Depression
Mania Depression Bipolar I Bipolar II
Mood stabiliser
Lithium – – – –
Divalproex DR – – – – –
Divalproex ER – – – –
Carbamazepine ER – – – –
Atypical antipsychotics
Risperidone – – –
Olanzapine – – –
Quetiapine
Ziprasidone – – – –
Aripiprazole – – –
Other
Lamotrigine – – – –
Olanzapine/fluoxetine – – – – –
Lithium
First medication to be found effective in Tx of mania
Narrow therapeutic index
Indications:
Acute mania
Maintenance / prophylaxis of bipolar d/o
Bipolar depression
Schizoaffective d/o, bipolar type
Slide 74
Lithium – Mechanism of Action
Mechanism unknown Inhibits alpha unit of G-proteins coupled to cAMP, especially in beta adrenergic receptors
This may interfere with neuronal activity occurring in mania
PIP inhibition may improve depressive Sx
Lithium - Pharmacology
Dosed to a serum therapeutic range of
0.6 – 1.2 mEq/L
Usual dosage: 900 – 1200 mg / day
Excreted unchanged by kidneys
Lithium - Adverse Effects
Neurological – dysphoria, lack of creativity, slowed reaction times, memory difficulty, tremorEndocrine – hypothyroid, hypoparathyroidCardiovascular – sick sinus syndrome Renal – polydypsia, polyuria, nephrogenic diabetes insipidus; long-term decreased GFR, nephrotic syndrome, renal insufficiencyDermatological – acne, hair loss, psoriasis, rashGastrointestinal - anorexia, nausea, vomiting, diarrheaMisc – altered carbohydrate metabolism, weight gain, fluid retention
Lithium Toxicity
Characterized by1.2 – 1.5 mEq/L: tremor, ataxia, diarrhea, nausea
1.5 – 2 mEq/L : increased risk of seizure
> 2.5 mEq/L: coma, death
In elderly or in pts. w/ renal failure, toxicity can occur within the therapeutic range
Lithium - Teratogenicity
Ebstein’s AnomalyMalformation of tricuspid valveCan be mild to severe Associated with first trimester useRisk: 1 / 1,000 in Li exposed pregnancies
(20x risk general population)
Valproate (Depakine)
IndicationsAcute mania
Maintenance / prophylaxis of bipolar d/o
More effective than Li in rapid cycling and mixed bipolar states
Adjuvant treatment in schizophrenia, schizoaffective disorder
GTC / partial Sz, prophylaxis of migraine
Valproate – Mechanism of Action
Increases the inhibitory neurotransmitter GABA by:
Inhibiting catabolism of GABA
Increasing release of GABA
Increasing GABA b receptor density
May improve neuronal responsiveness to GABA
All which points to increased seizure control but is unclear how this affects mood disorders
Valproate - Pharmacology
Metabolized by liver
90% plasma protein bound
Anticonvulsant serum level:
50 -100 mcg/mL
Blood levels for Tx of mania not established but usually the same
Valproate – Adverse Events
Gastrointestinal (nausea, dyspepsia, vomiting, diarrhea)
Neurological (sedation, ataxia, dysarthria, tremor)
Weight gain (up to 44% of patients)
Alopecia (3-12% of patients)
Transient thrombocytopenia
Persistently elevated transaminases
PCO
Valproate – Severe Adverse Events
Fatal hepatotoxicity (~2.6 in 100,000), hemorrhagic pancreatitis, agranulocytosis
Monitor LFT’s and CBC on initiation and periodically
Teratogenicity – 1st trimester use associated with increased risk of neural tube defects, craniofacial defects, fingernail hypoplasia, developmental delay
Incidence of malformations with carbamazepine is ~7.3%
Carbamazepine (Tegretol)
Indications:
Drug of choice for Tx of psychiatric Sx associated with complex – partial Sz
Mood stabilization in bipolar disorder
Unclear therapeutic range for mood disorders, usually use 8-12 mcg/mL
Carbamazepine - Pharmacology
Inhibits voltage-dependent sodium channels
70-80% protein bound
Induces its own metabolism (autoinduction), requiring increase in dose after 2-3 weeks
Metabolized by the liver, excreted by kidney
Carbamazepine – Adverse Events
Dose related –
Double/blurred vision
Vertigo
GI disturbance
Cognitive impairment
Mild leukopenia
Non-dose related –
Agranulocytosis (1 in 125,000)
Aplastic anemia
Hepatic failure (rare)
Rash
Pancreatitis
Carbamazepine – Adverse Events
Teratogenicity - in 1st trimester, increased incidence of neural tube defects (1-4%), reduced risk with folate supplementation
Lamotrigine (Lamictal)
Indications: Bipolar depression
Maintenance Tx of bipolar d/o
Refractory partial Sz
Pain d/o
Mechanism: Inhibition of glutamate release
Inhibition of voltage-gated sodium channels
Lamotrigine - Pharmacology
Moderate protein binding
Initial daily dose: 25mg /day
Increase weekly to maintenance dose of 75-250mg / day
Valproate inhibits metabolism of lamotrigine
Requires slower dose titration
Lamotrigine – Adverse Events
Rash in 10% of patients
Requires discontinuation because of risk of progression to Stevens-Johnson syndrome
Usually occurs in first 8 weeks of Tx
Aseptic meningitis
Atypical Antipsychotics
Olanzapine 5-20mg daily
Risperidone 1-6mg range daily
Quetiapine dose range 300-600mg daily
Risk of tardive dyskinesia less than typical antipsychotics but still present
Have antidepressant effect
*
Medication approved for bipolar depression Monotherapy
Lithium
Olanzapine/fluxetine
Quetiapine
Lamotrigine
Drug Specificity:Comparative Receptor Binding Profiles
Adapted from Gareri P, et al. Clin Drug Invest. 2003;23(5):287-322.* BMS Data on file.
D1 D2
5HT2A
5HT1A
A1
A2
H1
M
Clozapine Olanzapine
Risperidone
D1 D2
5HT2A
5HT1A
A1
A2
H1
Quetiapine
Ziprasidone
D2D1
5HT2A
5HT1A
A1
5HT2A
5HT1A
D2
D3
5H12C
A1A2
H1
Aripiprazole* Haloperidol
Rationale-based PharmacotherapyImportant Principles
DrugReceptor Binding Affinities
H1 D2 5-HT2C 5-HT2A α1 M1
Haloperidol 440 0.7 > 10,000 45 6 > 1,500
Aripiprazole 61 0.34 15 3.4 57 > 10,000
Olanzapine 7 11 23 4 19 1.9
Quetiapine 11 160 1,500 295 7 120
Risperidone 20 4 25 0.5 0.7 > 10,000
Ziprasidone 50 5 1 0.4 11 > 1,000
ReceptorsEffects of Receptor
Blockade
H1Sedation, weight gain,
postural dizziness
D2EPS, prolactin elevation,
antipsychotic
5-HT2C Satiety Blockade
5-HT2A Anti-EPS?
α1-adrenergic
Hypotension
M1
Deficits in memory and cognition, dry mouth,
constipation, tachycardia, blurred vision
Values represent Ki (nM); values in blue reflect the highest binding affinity for a given drug; values in green reflect the lowest affinity
Adapted from Weiden P, et al. J Clin Psychiatry. 2007;68(7):5-46.
Binding Affinities for Atypical Antipsychotics and Tricyclic Antidepressants for Norepinephrine
Transporter (NET)
Compound / drug
> 10000
35
3168
> 10000
> 10000
> 10000
2093
44*
2
13.3-35
52
0.55
Quetiapine
Norquetiapine
Clozapine
Olanzapine
Risperidone
Paliperidone
Aripiprazole
Ziprasidone
Nortriptyline
Amitriptyline
Imipramine
Desipramine
NET Ki (nM)
Data from NIMH Psychoactive Drug Screening ProgramGoldstein J, et al. Eur Psychopharmacol. 2007;17(S4):S401.*Using ex vivo methodology there was no inhibition of norepinephrine reuptake with ziprasidone at serum concentrations typically observed during treatment (Owens and Nemeroff, personal communication).
Drugs are not enough
Prodrome Detection: Perry and colleagues
Psycho education: Colom and colleagues
3. Cognitive Therapy: Lam and colleagues,
Interpersonal and Social Rhythm Therapy (IPSRT) : Frank and colleagues
Family-Focused Therapy (FFT) and Integrated FFT/IPSRT: Miklowitz and colleagues
Antidepressants
Appropriate use and effectiveness is controversial
Antidepressant-induced mania in 20-40% with all antidepressant classes (TCAs > others)¹‚²
Increased risk of switching³:
Previous antidepressant-induced mania
Bipolar family history
Exposure to multiple antidepressant trials
Antidepressants
Conflicting evidence for efficacy against depressive relapse:
Protective?:
Altshuler L, et al¹ (retrospective, 39 pts, 1 year):
35% relapse rate with antidepressant continuation
68% relapse rate with antidepressant discontinuation
Altshuler L, et al² (prospective, 84 pts, 1 year):
36% relapse rate with antidepressant continuation
70% relapse rate with antidepressant discontinuation
Antidepressants
No benefit?:
Frankle WG, et al¹ (retrospective, 50 pts, 30 weeks):
No difference in length of depressive episode regardless of antidepressant status
Ghaemi S, et al² (open, randomized 33 pts, 1 year):
Relapse rate 50% within 20 weeks regardless of antidepressant status
Initiation of sustained ultradian cycling during unopposed antidepressant treatment in a bipolar II female. 30–year delay in onset of appropriate treatment
Post RM, Altshuler LL. In: Kaplan and Sadock’s Comprehensive Textbook of Psychiatry. Mood disorders: Treatment of Bipolar Disorders. 2009.
* *
Severe
Moderate
Moderate
Mid
Mid
Aprozalam
Dep
ress
ion
Ma
nia
1942 1956 1958 1960 1962 1964 1966 1968 1970 1972
1974 1976 1980 1982 1984 1986 1988 1990 1992
continued
Severe
depressions
age 13
Hypomanias and major depressive recurrences
FluoxetineTrazodone Lithium
Carbamazepine
NimodipineAntidepressant
treatment in absence of a
mood stabiliser
Conversion to continuous ultradian
cycling following fluoxetine
Two brief bursts of ultradian cycling
FUTURE DIRECTIONS
Brain Affection
Brain Affection
Brain affection
Structural Changes With BPD Progression:Episodes Are Associated With Brain Tissue Loss
Prefrontal Cortex ↓ Left inferior prefrontal gray volumes with ↑ illness
duration↓ Gray matter volume with ↑ ageStriatumNo difference in putamen between first- and multi-episode
patientsCerebellum↓ Cerebellar vermis volume in multi- vs first-episode patientsAmygdala↑ Amygdala volume with ↑ age in young patientsVentricles↑ Ventricular volume in multi- vs first-episode patients↑ Ventricular volume with ↑ number of manic episodes↑ Ventricular volume with ↑ number of affective episodes
HPA Axis Dysregulation in Bipolar Disorder
HPA axis hyperactivity prominent in BPD
Significant hypersecretion of cortisol; state dependent abnormalities
Dexamethasone non-suppression
Abnormal response to physical and psychological stressors
Chronic elevation of glucocorticoids
Goodwin F, Jamison K. Manic Depressive Illness. Oxford University Press; New York, NY: 2007.
Anterior Limbic Networks
Thalamus (MD)
Ventral pallidum
Ventral striatum
Amygdala
Cerebellar vermis
Hypothalamus
OFC/VLPFC DLPFC
Expression of emotions
Anterior cingulatesubgenual dorsal
Future treatment
Bifeprunox
Pramipexole
licarbazepine
GLYT1 (glycine transporter) inhibitor
Glycine site specific NMDA modulator
NK-3 antagonist
Glucocorticoid receptor type II (GRII) antagonist, progesterone receptor antagonist
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