Efficacy of orally administered Silexan in patients with anxiety-related restlessness and disturbed sleep – A randomized, placebo-controlled trial

Abstract The anxiolytic effect of Silexan, a patented active substance with an essential oil produced from Lavandula angustifolia flowers, was investigated in patients with anxiety-related restlessness and disturbed sleep. 170 out-patients with a diagnosis of restlessness (ICD-10 R45.1), a Hamilton...

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Veröffentlicht in:European neuropsychopharmacology 2015-11, Vol.25 (11), p.1960-1967
Hauptverfasser: Kasper, Siegfried, Anghelescu, Ion, Dienel, Angelika
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container_end_page 1967
container_issue 11
container_start_page 1960
container_title European neuropsychopharmacology
container_volume 25
creator Kasper, Siegfried
Anghelescu, Ion
Dienel, Angelika
description Abstract The anxiolytic effect of Silexan, a patented active substance with an essential oil produced from Lavandula angustifolia flowers, was investigated in patients with anxiety-related restlessness and disturbed sleep. 170 out-patients with a diagnosis of restlessness (ICD-10 R45.1), a Hamilton Anxiety Scale (HAMA) total score ≥18 points and ≥2 points for HAMA items ‘Tension’ and ‘Insomnia’ participated in this randomized, double-blind trial and received 80 mg Silexan or placebo once daily for 10 weeks. Patients with clinically important other psychiatric or neurological disorders potentially interfering with the assessment of treatment efficacy were excluded. Outcome variables were the HAMA as well as the Pittsburgh Sleep Quality Index (PSQI), the Zung Self-rating Anxiety Scale, a State Check inventory and the Clinical Global Impressions questionnaire. In the Silexan group the HAMA total score decreased from an average of 25.5±6.0 points at baseline to 13.7±7.0 points at treatment end, compared to a decrease from 26.5±6.1 to 16.9±9.8 for placebo, corresponding to decreases of 12.0 and 9.3 points (marginal means), respectively (group difference: p =0.03, ANCOVA with factor treatment and baseline value as covariate). In all outcome measures the treatment effect of Silexan was more pronounced than with placebo. According to the HAMA, 48.8% and 33.3% of the patients were responders (Silexan, placebo; reduction ≥50%; p =0.04) and 31.4% and 22.6% achieved remission (HAMA
doi_str_mv 10.1016/j.euroneuro.2015.07.024
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Patients with clinically important other psychiatric or neurological disorders potentially interfering with the assessment of treatment efficacy were excluded. Outcome variables were the HAMA as well as the Pittsburgh Sleep Quality Index (PSQI), the Zung Self-rating Anxiety Scale, a State Check inventory and the Clinical Global Impressions questionnaire. In the Silexan group the HAMA total score decreased from an average of 25.5±6.0 points at baseline to 13.7±7.0 points at treatment end, compared to a decrease from 26.5±6.1 to 16.9±9.8 for placebo, corresponding to decreases of 12.0 and 9.3 points (marginal means), respectively (group difference: p =0.03, ANCOVA with factor treatment and baseline value as covariate). In all outcome measures the treatment effect of Silexan was more pronounced than with placebo. According to the HAMA, 48.8% and 33.3% of the patients were responders (Silexan, placebo; reduction ≥50%; p =0.04) and 31.4% and 22.6% achieved remission (HAMA&lt;10; p =0.20). 33.7% (Silexan) and 35.7% (placebo) of the participants reported adverse events. 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Patients with clinically important other psychiatric or neurological disorders potentially interfering with the assessment of treatment efficacy were excluded. Outcome variables were the HAMA as well as the Pittsburgh Sleep Quality Index (PSQI), the Zung Self-rating Anxiety Scale, a State Check inventory and the Clinical Global Impressions questionnaire. In the Silexan group the HAMA total score decreased from an average of 25.5±6.0 points at baseline to 13.7±7.0 points at treatment end, compared to a decrease from 26.5±6.1 to 16.9±9.8 for placebo, corresponding to decreases of 12.0 and 9.3 points (marginal means), respectively (group difference: p =0.03, ANCOVA with factor treatment and baseline value as covariate). In all outcome measures the treatment effect of Silexan was more pronounced than with placebo. According to the HAMA, 48.8% and 33.3% of the patients were responders (Silexan, placebo; reduction ≥50%; p =0.04) and 31.4% and 22.6% achieved remission (HAMA&lt;10; p =0.20). 33.7% (Silexan) and 35.7% (placebo) of the participants reported adverse events. The study confirms the calming and anxiolytic efficacy of Silexan.</description><subject>Administration, Oral</subject><subject>Adult</subject><subject>Aged</subject><subject>Anti-Anxiety Agents - administration &amp; dosage</subject><subject>Anti-Anxiety Agents - adverse effects</subject><subject>Anxiety</subject><subject>Anxiety Disorders - complications</subject><subject>Anxiety Disorders - drug therapy</subject><subject>Anxiety Disorders - physiopathology</subject><subject>Clinical trial</subject><subject>Double-Blind Method</subject><subject>Female</subject><subject>Humans</subject><subject>Internal Medicine</subject><subject>Lavender</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Oils, Volatile - administration &amp; dosage</subject><subject>Oils, Volatile - adverse effects</subject><subject>Patient Compliance</subject><subject>Plant Oils - administration &amp; dosage</subject><subject>Plant Oils - adverse effects</subject><subject>Psychiatric Status Rating Scales</subject><subject>Psychiatry</subject><subject>Psychomotor Agitation - drug therapy</subject><subject>Psychomotor Agitation - etiology</subject><subject>Psychomotor Agitation - physiopathology</subject><subject>Restlessness</subject><subject>Severity of Illness Index</subject><subject>Silexan</subject><subject>Sleep - drug effects</subject><subject>Sleep Aids, Pharmaceutical - administration &amp; dosage</subject><subject>Sleep Aids, Pharmaceutical - adverse effects</subject><subject>Sleep Wake Disorders - drug therapy</subject><subject>Sleep Wake Disorders - etiology</subject><subject>Sleep Wake Disorders - physiopathology</subject><subject>Treatment efficacy</subject><subject>Treatment Outcome</subject><subject>Young Adult</subject><issn>0924-977X</issn><issn>1873-7862</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkkFu1TAQhiMEoo_CFcBLFiTYcRInG6SnqgWkSiwKEjvLsSfCDycOtlOarrgDnJCTMNErXbBiYXsx3_zjmX-y7AWjBaOseX0oYAl-2q6ipKwuqChoWT3IdqwVPBdtUz7MdrQrq7wT4vNJ9iTGA0WQ8-5xdlI2Zcfrlu-yX-fDYLXSK_ED8UE5txJlRjvZmCCAIVfWwY2aiJ3IrJKFKUXy3aYvRE03FtKaB3AqIRggJgcxTngwaIhBiSX0GIoOYCa_f_wkexIw5Ed7C-YVmZ3S0Ptc-ykF7xyiKVjlnmaPBuUiPLt7T7NPF-cfz97llx_evj_bX-a66pqUm6pvy1I1WggxDLqDWnSKNX2FzRnV66aBsgWjGtpxroHrCkxNe94qJRqtFT_NXh515-C_Lfh_OdqowTk1gV-iZILjwFjFWkTFEdXBxxhgkHOwowqrZFRulsiDvLdEbpZIKiRagpnP74os_QjmPu-vBwjsjwBgq9cWgowa56zB2AA6SePtfxR584-GduihVu4rrBAPfgkTTlIyGUtJ5dW2GdtisJpiOgr8AWwlvGQ</recordid><startdate>20151101</startdate><enddate>20151101</enddate><creator>Kasper, Siegfried</creator><creator>Anghelescu, Ion</creator><creator>Dienel, Angelika</creator><general>Elsevier B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20151101</creationdate><title>Efficacy of orally administered Silexan in patients with anxiety-related restlessness and disturbed sleep – A randomized, placebo-controlled trial</title><author>Kasper, Siegfried ; Anghelescu, Ion ; Dienel, Angelika</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c496t-d4b822a6c777ffc9e579a16b4293dabc66e28eda60933ce3c4ed50b38aa76cca3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Administration, Oral</topic><topic>Adult</topic><topic>Aged</topic><topic>Anti-Anxiety Agents - administration &amp; dosage</topic><topic>Anti-Anxiety Agents - adverse effects</topic><topic>Anxiety</topic><topic>Anxiety Disorders - complications</topic><topic>Anxiety Disorders - drug therapy</topic><topic>Anxiety Disorders - physiopathology</topic><topic>Clinical trial</topic><topic>Double-Blind Method</topic><topic>Female</topic><topic>Humans</topic><topic>Internal Medicine</topic><topic>Lavender</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Oils, Volatile - administration &amp; dosage</topic><topic>Oils, Volatile - adverse effects</topic><topic>Patient Compliance</topic><topic>Plant Oils - administration &amp; dosage</topic><topic>Plant Oils - adverse effects</topic><topic>Psychiatric Status Rating Scales</topic><topic>Psychiatry</topic><topic>Psychomotor Agitation - drug therapy</topic><topic>Psychomotor Agitation - etiology</topic><topic>Psychomotor Agitation - physiopathology</topic><topic>Restlessness</topic><topic>Severity of Illness Index</topic><topic>Silexan</topic><topic>Sleep - drug effects</topic><topic>Sleep Aids, Pharmaceutical - administration &amp; dosage</topic><topic>Sleep Aids, Pharmaceutical - adverse effects</topic><topic>Sleep Wake Disorders - drug therapy</topic><topic>Sleep Wake Disorders - etiology</topic><topic>Sleep Wake Disorders - physiopathology</topic><topic>Treatment efficacy</topic><topic>Treatment Outcome</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kasper, Siegfried</creatorcontrib><creatorcontrib>Anghelescu, Ion</creatorcontrib><creatorcontrib>Dienel, Angelika</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>European neuropsychopharmacology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kasper, Siegfried</au><au>Anghelescu, Ion</au><au>Dienel, Angelika</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Efficacy of orally administered Silexan in patients with anxiety-related restlessness and disturbed sleep – A randomized, placebo-controlled trial</atitle><jtitle>European neuropsychopharmacology</jtitle><addtitle>Eur Neuropsychopharmacol</addtitle><date>2015-11-01</date><risdate>2015</risdate><volume>25</volume><issue>11</issue><spage>1960</spage><epage>1967</epage><pages>1960-1967</pages><issn>0924-977X</issn><eissn>1873-7862</eissn><abstract>Abstract The anxiolytic effect of Silexan, a patented active substance with an essential oil produced from Lavandula angustifolia flowers, was investigated in patients with anxiety-related restlessness and disturbed sleep. 170 out-patients with a diagnosis of restlessness (ICD-10 R45.1), a Hamilton Anxiety Scale (HAMA) total score ≥18 points and ≥2 points for HAMA items ‘Tension’ and ‘Insomnia’ participated in this randomized, double-blind trial and received 80 mg Silexan or placebo once daily for 10 weeks. Patients with clinically important other psychiatric or neurological disorders potentially interfering with the assessment of treatment efficacy were excluded. Outcome variables were the HAMA as well as the Pittsburgh Sleep Quality Index (PSQI), the Zung Self-rating Anxiety Scale, a State Check inventory and the Clinical Global Impressions questionnaire. In the Silexan group the HAMA total score decreased from an average of 25.5±6.0 points at baseline to 13.7±7.0 points at treatment end, compared to a decrease from 26.5±6.1 to 16.9±9.8 for placebo, corresponding to decreases of 12.0 and 9.3 points (marginal means), respectively (group difference: p =0.03, ANCOVA with factor treatment and baseline value as covariate). In all outcome measures the treatment effect of Silexan was more pronounced than with placebo. According to the HAMA, 48.8% and 33.3% of the patients were responders (Silexan, placebo; reduction ≥50%; p =0.04) and 31.4% and 22.6% achieved remission (HAMA&lt;10; p =0.20). 33.7% (Silexan) and 35.7% (placebo) of the participants reported adverse events. The study confirms the calming and anxiolytic efficacy of Silexan.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>26293583</pmid><doi>10.1016/j.euroneuro.2015.07.024</doi><tpages>8</tpages></addata></record>
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subjects Administration, Oral
Adult
Aged
Anti-Anxiety Agents - administration & dosage
Anti-Anxiety Agents - adverse effects
Anxiety
Anxiety Disorders - complications
Anxiety Disorders - drug therapy
Anxiety Disorders - physiopathology
Clinical trial
Double-Blind Method
Female
Humans
Internal Medicine
Lavender
Male
Middle Aged
Oils, Volatile - administration & dosage
Oils, Volatile - adverse effects
Patient Compliance
Plant Oils - administration & dosage
Plant Oils - adverse effects
Psychiatric Status Rating Scales
Psychiatry
Psychomotor Agitation - drug therapy
Psychomotor Agitation - etiology
Psychomotor Agitation - physiopathology
Restlessness
Severity of Illness Index
Silexan
Sleep - drug effects
Sleep Aids, Pharmaceutical - administration & dosage
Sleep Aids, Pharmaceutical - adverse effects
Sleep Wake Disorders - drug therapy
Sleep Wake Disorders - etiology
Sleep Wake Disorders - physiopathology
Treatment efficacy
Treatment Outcome
Young Adult
title Efficacy of orally administered Silexan in patients with anxiety-related restlessness and disturbed sleep – A randomized, placebo-controlled trial
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