3 EPIDEMIOLOGY OF BIPOLAR DISORDER Prevalence is underestimated at 1%Prevalence is probably 2%Calgary est. 2%x890000=17,800 citizens
4 COMORBID DISORDERS Substance Abuse – At least 61% Alcohol, Cocaine, THCEffect – More mixed and rapid cycling, poorer response to Lithium, slower time to recovery, and more lifetime hospitalizationsNarcissistic PDBorderline PD20-30% OCD, Panic Disorder
6 ADOLESCENCEMuch more likely to be delusional and co morbid for substance abuseMore likely to be irritable and misdiagnosed as conduct disorder
7 PRECIPITANTS60% of first episodes precipitated by psychosocial, physical, or drug causes % of second episodesNone of fourth episodesIllness starts as exogenous and becomes more endogenousConcept of kindling
8 SCREENING QUESTIONSHave you ever had a period of a week or so when you felt so happy and energetic that your friends told you that you were talking too fast or that you were behaving differently and strangely?Has there been a period when you were so hyper and irritable that you got into arguments with people?
9 SCREENING QUESTIONSHas anyone ever called you manic before?
11 DISTRACTABILITY Were you having trouble thinking or concentrating? Was this because things around you or even your thoughts were getting you off track?
12 INDISCRETIONDuring the period we were talking about, how were you spending your time?Were you doing things that caused trouble for you or your family?Were you doing things that showed a lack of judgment, such as driving too fast, running red lights, or spending too much?Were you doing sexual things during this
13 INDISCRETIONSthis period that was unusual for you?
14 GRANDIOUSITYDuring this period did you feel so confidant that you felt you could conquer the world?What was your best idea when you felt that way?Did you feel that you had special powers or abilities?Did you feel more religious than normal for you?
15 FLIGHT OF IDEASDuring this period did you have so many thoughts, or were they so fast, that you could barely keep up to them?Did it feel like your thoughts were racing?
16 ACTIVITY INCREASE During that period, were you more active than usual? Were you constantly starting new projects and hobbies, working into the night?
17 SLEEP DEFICIT During that period, did you need less sleep? Did you ever stay up all night doing all kinds of things, like working on projects or phoning people?Did your sleep duration become reduced and still you had lots of energy?
18 TALKATIVENESSDuring this period, were you talking more than usual for you?Were you talking so much that people had to interrupt you to speak to you?Were you using the phone more than usual for you?
19 CORROBORATIONDenial and lack of insight rule the day
20 TREATMENT OPTIONS Hospitalization for mania, severe depression Mood stabilizers, antipsychotics and antidepressantsECT – most effective treatmentSupportive psychotherapy and CBTLifestyle changeSubstance abuse treatment
21 LITHIUM CARBONATE 900 – 1500 mg/d .8-1.3 mEq/L Most effective medicationSE’s include teratogenicity, tremor, renal dysfunction, acne, hypothyroidism, gastric upset, cardiac conduction problems, cognitive impairmentSerum TSH, Cr, EKG, electrolytes pre and TSH, Cr q6mo.Mogen Schou rule, “Always treat SE’s”
23 VALPROATE500 – 2000 mg/d; Highest blood level for effect. Highest dose is 60 mg/kg/dSE’s – GI upset, weight gain, alopecia, teratogenicity, liver problemsBest for mixed states, rapid cycling, secondary mania. Ineffective for depressionSelenium for hair lossPCOD!
24 ATYPICAL ANTIPSYCHOTICS Olanzepine – mg/d; very effective; significant wt gain and lipid problems in someRisperdal mg/d; more EPS and increased prolactin in someClozapine - For truly refractory patient, but can be remarkably effective. Slow response, serious SE profile and significant wt gain
25 Olanzepine Efficacy for Mania: Two Placebo-Controlled Studies Both double-blind, placebo-controlled, inpatientStudy I: 3 weeks*Study II: 4 weeks**Olanzapine dosage: 5-20 mg/dayStarting daily dose: Study I - 10 mg Study II - 15 mgMean modal daily dose: Study I mg Study II mgDSM-IV Bipolar I Disorder, manic or mixedLorazepam use limited to initial study phaseBackground: 100+ psychiatrists in both inpatient and outpatient settings were interviewed in 1999 on their key goals of therapy in treating bipolar patients in manic or mixed episodes.Key Point: Olanzapine’s efficacy for bipolar mania was demonstrated in two placebo-controlled registration trials. Both trials enrolled initially inpatient subjects in an acute manic or mixed episode, with or without psychotic features. Though the trials had very similar designs, there were two important differences:· Study I lasted three weeks but study II lasted four weeks.· Starting olanzapine dose was 10 mg in study I, but 15 mgin study II, which appeared to produce more robust results.Background: Both trials were multicenter studies; study I was conducted in and study II in These were double-blind, placebo-controlled, parallel group studies of 3 and 4 weeks duration. Subjects were initially inpatient, but responders could be discharged after one week. Medically unstable, organically impaired, or substance-dependent subjects were excluded. Patients in their first episode of mania were excluded from study II.Patients were randomly assigned to therapy. After a two- to four-day screening period, qualified patients were assigned to either olanzapine or placebo. Following the first day of treatment, the daily dose could be adjusted upward or downward, as clinically indicated, by one capsule (olanzapine 5 mg or placebo) within the allowed range of 1 to 4 capsules/day. Limited use of adjunctive lorazepam was allowed; the second study was the more restrictive: Max 2 mg/day for the first four days, max 1 mg/day for the next six days, none after day 10.All randomized patients were included in statistical analyses; ANOVA was used for continuous variables and Fishers exact test for categorical ones; p values are two-tailed with protocol-specified significance level of 0.05.Sources:Study I (HGEH): Tohen M et al. Olanzapine versus placebo in the treatment of acute mania. Am J Psych 156: , 1999Study II (HGGW): Tohen M et al. Olanzapine in the treatment of mania: a placebo-controlled four-week study poster presentation, XI World Congress of Psychiatry, Hamburg, Germany, 1999* Study I -Tohen et al, Am J Psych 1999; ** Study II- Tohen et al, XI World Congress of Psychiatry, Hamburg Germany, 1999
26 Olanzepine Grp. Superior YMRS Scores Study I three weeksStudy II four weeksBaseline:28.727.728.829.4n=70n=66n=54n=56Mean Change to Endpoint (LOCF)Key point: In both mania studies, olanzapine was superior to placebo for the reduction of manic symptoms. These studies demonstrated and replicated the finding that olanzapine is effective for treating manic or mixed episodes associated with bipolar disorder. This primary finding allowed application for an indication for the treatment of acute mania in the United States.Background: Efficacy analysis included all subjects with baseline rating and at least one follow-up rating (study I, n=136; study II, n=110). In the three-week study I, olanzapine-treated patients improved by 10.3 points (36%) from baseline to endpoint, versus 4.9 points (18%) in the placebo group. In the four-week study II, olanzapine treated-patients improved by 14.8 points (51%) from baseline to endpoint, versus 8.1 points (28%) in the placebo group.Non-medication treatments (eg, inpatient psychotherapies) were provided to both groups.***Y-MRS Total score designated a priori as primary outcome measure. *p=0.02, **p<0.001; LOCF
27 Percent Change from Baseline in Y-MRS Total Antimanic Efficacy of Olanzapine Is Significant Starting at the First Assessment (Week 1 Y-MRS)15 mg starting dose-10Percent Change from Baseline in Y-MRS Total-20*-30*-40*Olanzapine*Key point: Prompt onset of mood-stabilizing effects in mania may be relevant to safety, patient functioning, and length of hospitalization. In the placebo-controlled mania studies, ratings of mania were done at weekly intervals. In study II, with a starting olanzapine dose of 15 mg, efficacy was prompt and superiority over placebo was noted at the first assessment, one week. Olanzapine can have prompt anti-manic effects.Background: In study II, the starting dose was 10 mg. YMRS improvement was noted at each assessment starting at week 1, which was statistically significant within group but separated from placebo only at the third assessment. The more robust effects evident in the study with a 15 mg starting dose suggest that this is the appropriate starting dose for patients similar to those in these trials: Acutely manic inpatients, relatively physically healthy, treated with monotherapy.In placebo-controlled trials, the earliest separation of valproic acid from placebo on the primary efficacy measure (Mania Rating Scale) was at day 10 (Bowden et al. Efficacy of divalproex vs lithium and placebo in the treatment of mania. JAMA 271: , 1994). Some have suggested that high-dose “loading” techniques may produce quicker results with lithium or valproic acid, but time-to-separation from placebo is not available for these techniques.-50Placebo-601234Week of Study* p < Response curve illustrates four week study of olanzapine (n=54) vs placebo (n=56) for acute mania (four week study II)
28 Similar Y-MRS Improvement in Non-Psychotic and Psychotic Subjects Study Ithree weeksStudy IIfour weeksBaseline:29.5827.5630.825.5Mean Change (LOCF)-9.9*Key point: While olanzapine’s efficacy for psychosis is well known, it is important to note its wider effects for mania. This graph compares improvement in Y-MRS for the 2 studies between subjects with and without baseline psychotic features. Improvement was statistically similar across the 2 groups in both studies, suggesting that olanzapine is not limited in usefulness to psychotic patients, but has broad anti-manic effects.Background: Baseline mean Y-MRS total scores for olanzapine-treated subjects:with psychosis (n) w/o psychosis (n)Study IStudy II-10.7-13.0Psychotic**-15.9Non-psychotic*p=0.88; **p=0.41. No difference in mania improvement among olanzapine-treated subjects with and without psychotic features
29 Y-MRS Total: Manic vs Mixed Episodes Study II four weeksBaseline:29.1928.17-5Manic episode n=31MeanChange-10Mixed episode n=23Key point: Olanzapine is useful across a broad range of mania subtypes. A multicenter comparison of lithium and valproic acid revealed that patients with mixed or depressive mania did not respond as well to lithium, and those with more classic mania did not respond as well to valproic acid.This slide from study II illustrates that mania improved similarly between those subjects diagnosed at baseline with manic episode and those in a mixed episode. Therefore, it appears that olanzapine will be useful in both subgroups.Background: Similarly in study I, there was no significant difference in mean Y-MRS change from baseline between patients with pure and mixed mania treated with olanzapine. However, only 17% of subjects in that study were in a mixed state.A secondary analysis of the valproic acid vs lithium vs placebo study in acute mania demonstrated that “depressive symptoms were associated with poor antimanic response to lithium,” and suggested better relative efficacy with valproic acid for depressive mania and lithium for classic mania. By contrast, olanzapine appears to have comparable efficacy in both groups.Reference: Swann AC et al. Depression during mania, treatment response to lithium or divalproex. Arch Gen Psych 54:37-42,1997-15-13.96-15.39-20There was no difference in antimanic response (Y-MRS Total beginning to endpoint improvement, four-week study II) between olanzapine-treated patients in manic or mixed episodes (p=.681)
30 Mean Change in HAMD21 Total In Patients Presenting with Depressive Symptoms‡ HAMD Improved During Olanzapine TreatmentBaseline:26.5725.62n=21n=21Mean Change in HAMD21 TotalKey point: Olanzapine does not precipitate depressive symptoms during acute mania treatment, and in fact, average depression ratings declined. What about patients with significant baseline depressive symptoms? In study II, a large number of subjects had depressive mania. Forty-two subjects had baseline Hamilton ratings in the moderately to severely depressed range, ie, HAMD >20. A post-hoc analysis in this group showed that improvement on olanzapine was significantly greater than on placebo. Olanzapine did not induce depression, and the group with significant baseline depressive symptoms improved during olanzapine treatment.Background: Will a drug that improves depressive symptoms in manic patients carry the risks of an antidepressant? In the treatment of bipolar patients, antidepressant drugs are thought to pose a risk for precipitating or exacerbating mania. Mania precipitation has been reported among antipsychotic drugs such as risperidone, and in a number of anecdotal reports for olanzapine. It can be difficult to interpret uncontrolled case reports because of issues of natural history of illness and confounding factors such as withdrawal from other treatments. These placebo-controlled trials offered the opportunity to assess whether olanzapine worsened mania, in a group that presumably would be at high risk if worsening were an issue. Y-MRS worsening occurred more often on placebo than olanzapine, arguing that rather than worsening mania, olanzapine may diminish likelihood of exacerbation.Olanzapine*PlaceboIn patients with depressive symptoms, olanzapine-treated patients had a statistically significantly greater mean improvement in HAMD21 total scores compared to placebo-treated patients in this four-week study II acute mania trial.*p=0.046 ‡HAMD21 total score 20 at baseline
31 Y-MRS Total: Lithium Responders vs Non-Responders Study II four weeksBaseline:27.6729.38Most RecentLithium Response:-3Responder n=18-6MeanChange-9Non-responder n=24Key point: With the availability of an additional mood stabilizer for mania, it is clinically relevant whether its usefulness will extend to patients with incomplete response to their current primary mood stabilizer. While the placebo-controlled trials of olanzapine do not definitively answer the question, study II did collect information on recent results of mood- stabilizer trials for its subjects. As the slide illustrates, the magnitude of improvement was similar between those with past good response to lithium and those with past poor response. This provides hope that olanzapine will be useful for some patients with incomplete response to lithium.Background: Study I did not record information on past treatment response adequate to address this question. In study II, investigators recorded, when known, the results of the most recent treatment with lithium, which was not necessarily in the present episode.Baker RW et al. Mania impairment during olanzapine treatment is comparable across patient subtypes. Bipolar Disorders Conference. Phoenix, Arizona, January 19-21, 2000-12-15-14.00-15.88-18There was no difference in antimanic response (Y-MRS Total beginning to endpoint improvement, four-week study II) between olanzapine-treated patients with history of good vs poor response to lithium treatment for mania (p=.641)Baker RW et al. Bipolar Disorders Conference. Phoenix, Arizona, January 2000.
32 Y-MRS Total: Valproic Acid Responders vs Non-Responders Study II four weeks30.4529.48Baseline:Most Recent Valproic Acid Response:-5MeanChangeResponder n=11-10Non-responder n=21-11.73Key point: This slide illustrates that the magnitude of improvement was similar between those with past good response to valproic acid and those with past poor response. This provides hope that olanzapine will be useful for some patients with incomplete response to valproic acid.Background: Study I did not record information on past treatment response adequately to address this question. In study II, investigators recorded, when known, the results of the most recent treatment with valproic acid, which was not necessarily in the present episode.Baker RW et al. Mania impairment during olanzapine treatment is comparable across patient subtypes. Bipolar Disorders Conference. Phoenix, Arizona, January 19-21, 2000-15-14.67-20There was no difference in antimanic response (Y-MRS Total beginning to endpoint improvement, four-week study II) between olanzapine-treated patients with history of good vs poor response to valproate treatment for mania (p=.546)Baker RW et al. Bipolar Disorders Conference. Phoenix, Arizona, January 2000
33 Treatment-Emergent Adverse Effects During Acute Mania Trials Event% ReportingOlanzapine(n=125)Placebo (n=129)SomnolenceDry mouthDizzinessAsthenia35%22%18%15%13%7%6%Key point: Olanzapine was well-tolerated; these are the only 4 treatment-emergent adverse events that were significantly more common on olanzapine than on placebo.Background: Somnolence was the most commonly reported treatment-emergent adverse event. Arguably this “adverse event” was clinically helpful to the symptoms of mania, especially as sleep deprivation may worsen mania. The incidence of somnolence in this study was substantially higher than the 16-26% observed on olanzapine in large-scale schizophrenia trials. Given characteristically increased energy and decreased need for sleep in mania, one is tempted to speculate that the incidence of “somnolence” is increased in part by patients’ misinterpretation of normalizing sleep, energy, and alertness.These four events were the only ones significantly more common (p<0.05) in olanzapine-treated subjects
34 Weeks of Open-Label Therapy Mean Change in HAMD21 Total Score (LOCF) Persisting Improvement in Depression Ratings During Extended Olanzapine TreatmentWeeks of Open-Label Therapy1020304050-1Mean Change in HAMD21 Total Score (LOCF)-2-3-4Key point: On average depressive symptoms also improved rapidly and then remained stable during open label treatment with olanzapine.Background: Average baseline depression rating was modest, and remained low throughout the study. About one-third of subjects were treated with adjunctive fluoxetine; as a group they had improved from baseline prior to fluoxetine prescription and continued to improve afterward. Compared to subjects not taking fluoxetine, those on olanzapine-fluoxetine combination had some increase in rates of certain side effects such as insomnia and nausea.Tohen MF et al. Long-term olanzapine treatment: Efficacy and safety in manic patients with and without psychotic features. European Neuropsychopharmacol 9(Suppl5):S247, 1999-5-6-7A significant improvement in depressive symptoms as measured by the HAMD21was observed from baseline (12.17) to endpoint (mean change = -5.77, p<.001). Tohen MF et al, European Neuropsychopharmacol 9(Suppl5):S247, 1999
35 GABAPENTIN Anticonvulsant, least effective new drug Most helpful with anxiety, insomnia, painMay cause persistent sedationExcreted by kidneys only, no drug interaction1200 to 4000 mg/d.
36 LAMOTRIGINE Anticonvulsant, best for Bipolar depression Improved cognition, excellent tolerance, serious autoimmune rashValproate interaction12.5 to 25 mg/wk increments. Dose range of 75 to 300mg/d.
37 TOPYRAMATE May augment other medications? Significant cognitive ill effect and paresthesiaeBUT SIGNIFICANT WEIGHT LOSS, AND NEVER UNDERESTIMATE LOOKING GOOD !!!!!!50 mg qhs, increase by 50 mg/wk. in divided doses to maximum of 200 mg bid
38 THYROID AUGMENTATIONTSH is not reliable indicator of subclinical hypothyroidism in mood disorder patientsT3 and T4 in lower range of “normal” cause cognitive impairment, relapse and lethargySupplemental T4 caused 10/11 Li refractory to respondLarge study showed no bone density effect of high dose T4 treatment
39 NEVER GIVE UPIt will help patient to be inspired by us, rather than the other way around