The DOI matches its Crossref record; 11 of the 11 references it cites were found in a registry or an index.
A 3‐week, randomized, placebo‐controlled trial of asenapine in the treatment of acute mania in bipolar mania and mixed states
Abstract
Objective: Asenapine is approved for bipolar disorder and schizophrenia. This was a 3‐week, randomized, double‐blind, placebo‐controlled trial of asenapine for treating acute bipolar mania. Methods: After a single‐blind placebo run‐in period, adults (n = 488) experiencing manic or mixed episodes were randomized to flexible‐dose sublingual asenapine (10 mg BID on day 1; 5 or 10 mg BID thereafter; n = 194), placebo (n = 104), or oral olanzapine (15 mg BID on day 1; 5–20 mg QD thereafter; n = 191). Primary efficacy, change in Young Mania Rating Scale (YMRS) total score from baseline to day 21, was assessed using analysis of covariance with last observation carried forward [(LOCF); primary analysis]. A mixed model for repeated measures [(MMRM); prespecified secondary analysis] was also used to assess efficacy. Tolerability and safety assessments included adverse events, physical examinations, extrapyramidal symptom ratings, and laboratory values. Results: Mean daily dosages were asenapine 18.2 mg and olanzapine 15.8 mg. Significantly greater least squares (LS) mean ± SE changes in YMRS scores were observed on day 2 with asenapine (−3.0 ± 0.4) and olanzapine (−3.4 ± 0.4) versus placebo (−1.5 ± 0.5, both p < 0.01) and were maintained until day 21 (−10.8 ± 0.8 with asenapine, −12.6 ± 0.8 with olanzapine; both p ≤ 0.0001 versus placebo, −5.5 ± 1.1) with LOCF. The results of MMRM analyses were consistent with those of LOCF. Asenapine had a modest impact on weight and metabolic measures. Conclusions: These results indicate that asenapine is rapidly acting, efficacious, and well tolerated for patients with bipolar I disorder experiencing an acute manic episode.
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Cites
The Positive and Negative Syndrome Scale (PANSS) for schizophrenia.
Kay, S. R., Fiszbein, A., & Opler, L. A. (1987) · Schizophrenia Bulletin · doi:10.1093/schbul/13.2.261 · Cited by 21,378
Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR)
American Psychiatric Association (2000) · doi:10.1176/appi.books.9780890423349 · Cited by 11,069
A Rating Scale for Mania: Reliability, Validity and Sensitivity
Young, R. C., Biggs, J. T., Ziegler, V. E., & Meyer, D. A. (1978) · British Journal of Psychiatry · doi:10.1192/bjp.133.5.429 · Cited by 8,744
Merikangas, K. R., Akiskal, H. S., Angst, J., Greenberg, P. E., Hirschfeld, R. M. A., Petukhova, M., & Kessler, R. C. (2007) · Archives of General Psychiatry · doi:10.1001/archpsyc.64.5.543 · Cited by 2,399
Excess Mortality in Bipolar and Unipolar Disorder in Sweden
Ösby, U., Brandt, L., Correia, N., Ekbom, A., & Sparén, P. (2001) · Archives of General Psychiatry · doi:10.1001/archpsyc.58.9.844 · Cited by 1,120
Olanzapine versus placebo in the treatment of acute mania
Tohen, M., Sanger, T. M., McElroy, S. L., Tollefson, G. D., Chengappa, K. N. R., Daniel, D. G., Petty, F., Centorrino, F., Wang, R., Grundy, S. L., et al. (1999) · American Journal of Psychiatry · doi:10.1176/ajp.156.5.702 · Cited by 585
Prevalence and Incidence Studies of Mood Disorders: A Systematic Review of the Literature
Waraich, P., Goldner, E. M., Somers, J. M., & Hsu, L. (2004) · The Canadian Journal of Psychiatry · doi:10.1177/070674370404900208 · Cited by 522
Nonadherence With Mood Stabilizers: Prevalence and Predictors
Scott, J., & Pope, M. (2002) · The Journal of Clinical Psychiatry · doi:10.4088/jcp.v63n0502 · Cited by 315
Handling drop‐out in longitudinal clinical trials: a comparison of the LOCF and MMRM approaches
Lane, P. (2008) · Pharmaceutical Statistics · doi:10.1002/pst.267 · Cited by 262 · cited 1×
“MMRM analysis is included as it is becoming the preferred method for evaluating missing data in clinical trials (37, 38).”
MethodPerlis, R. H., Welge, J. A., Vornik, L. A., Hirschfeld, R. M. A., & Keck, P. E. (2006) · The Journal of Clinical Psychiatry · doi:10.4088/jcp.v67n0401 · Cited by 196
Cited by
Almost All Antipsychotics Result in Weight Gain: A Meta-Analysis
Bak, M., Fransen, A., Janssen, J., van Os, J., & Drukker, M. (2014) · PLoS ONE · doi:10.1371/journal.pone.0094112 · Cited by 490
“1999 [62–68]; 2000 [69–73]; 2001 [74–90]; 2002 [37,91–106]; 2003 [107–132]; 2004 [133–157]; 2005 [158–191]; 2006 [46,192– 218]; 2007 [219–254]; 2008 [45,49,255–286]; 2009 [287–317]; 2010 [43,318–338]; 2011 [50,339–359]”
Grunze, H., Vieta, E., Goodwin, G. M., Bowden, C., Licht, R. W., Azorin, J.-M., Yatham, L., Mosolov, S., Möller, H.-J., Kasper, S., et al. (2018) · The World Journal of Biological Psychiatry · doi:10.1080/15622975.2017.1384850 · Cited by 187
Treatment of mixed bipolar states
Fountoulakis, K. N., Kontis, D., Gonda, X., Siamouli, M., & Yatham, L. N. (2012) · The International Journal of Neuropsychopharmacology · doi:10.1017/s1461145711001817 · Cited by 68
Muralidharan, K., Ali, M., Silveira, L. E., Bond, D. J., Fountoulakis, K. N., Lam, R. W., & Yatham, L. N. (2013) · Journal of Affective Disorders · doi:10.1016/j.jad.2013.04.032 · Cited by 47
Efficacy of antimanic treatments in mixed states
McIntyre, R. S., & Yoon, J. (2012) · Bipolar Disorders · doi:10.1111/j.1399-5618.2012.00990.x · Cited by 42
Self-citation
Metadata
- Authors
- McIntyre, R. S., Cohen, M., Zhao, J., Alphs, L., Macek, T. A., & Panagides, J.
- Venue
- Bipolar Disorders
- Publisher
- Wiley
- Published
- 2009-10-14
- Volume
- 11
- Issue
- 7
- Pages
- 673-686
- ISSN
- 1398-5647 (ISSN-L)
- 1399-5618
- OpenAlex
- W1967358491
- Cited by
- 189
- References
- 11
- FWCI
- 14.77
- Type
- journal article
- Language
- en
- Open access
- closed
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