scholarly journals A Web-Based Self-Help Intervention With and Without Chat Counseling to Reduce Cannabis Use in Problematic Cannabis Users: Three-Arm Randomized Controlled Trial

2015 ◽  
Vol 17 (10) ◽  
pp. e232 ◽  
Author(s):  
Michael P Schaub ◽  
Andreas Wenger ◽  
Oliver Berg ◽  
Thilo Beck ◽  
Lars Stark ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Controlled Trial ◽  
Cannabis Use ◽  
Web Based ◽  
Randomized Controlled ◽  
Self Help

scholarly journals The Effects of Social Presence on Adherence-Focused Guidance in Problematic Cannabis Users: Protocol for the CANreduce 2.0 Randomized Controlled Trial (Preprint)

2017 ◽  
Author(s):  
Manuel Amann ◽  
Severin Haug ◽  
Andreas Wenger ◽  
Christian Baumgartner ◽  
David D Ebert ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Social Presence ◽  
Outcome Measurement ◽  
Common Mental Disorder ◽  
Controlled Trial ◽  
Cannabis Use ◽  
Web Based ◽  
Related Disorder ◽  
Randomized Controlled ◽  
Self Help

BACKGROUND In European countries, including Switzerland, cannabis is the most commonly used illicit drug. Offering a Web-based self-help tool could potentially reach users who otherwise would not seek traditional help. However, such Web-based self-help tools often suffer from low adherence. OBJECTIVE Through adherence-focused guidance enhancements, the aim of this study was to increase adherence in cannabis users entering a Web-based self-help tool to reduce their cannabis use and, in this way, augment its effectiveness. METHODS This paper presents the protocol for a three-arm randomized controlled trial (RCT) to compare the effectiveness of (1) an adherence-focused, guidance-enhanced, Web-based self-help intervention with social presence; (2) an adherence-focused, guidance-enhanced, Web-based self-help intervention without social presence; and (3) a treatment-as-usual at reducing cannabis use in problematic users. The two active interventions, each spanning 6 weeks, consist of modules designed to reduce cannabis use and attenuate common mental disorder (CMD) symptoms, including depression, anxiety, and stress-related disorder symptoms based on the approaches of motivational interviewing and cognitive behavioral therapy. With a target sample size of 528, data will be collected at baseline, 6 weeks, and 3 months after baseline. The primary outcome measurement will be the number of days of cannabis use on the preceding 7 days. Secondary outcomes will include the quantity of cannabis used in standardized cannabis joints, the severity of cannabis dependence, changes in CMD symptoms, and adherence to the program. Data analysis will follow the intention-to-treat principle and employ (generalized) linear mixed models. RESULTS The project commenced in August 2016; recruitment is anticipated to end by December 2018. First results are expected to be submitted for publication in summer 2019. CONCLUSIONS This study will provide detailed insights on if and how the effectiveness of a Web-based self-help intervention aiming to reduce cannabis use in frequent cannabis users can be improved by theory-driven, adherence-focused guidance enhancement. CLINICALTRIAL International Standard Randomized Controlled Trial Number Registry: ISRCTN11086185; http://www.isrctn.com/ISRCTN11086185 (Archived by WebCite at http://www.webcitation.org/6wspbuQ1M)

scholarly journals Guided web-based treatment program for reducing cannabis use: a randomized controlled trial

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Kristina Sinadinovic ◽  
Magnus Johansson ◽  
Ann-Sofie Johansson ◽  
Thomas Lundqvist ◽  
Philip Lindner ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Treatment Program ◽  
Controlled Trial ◽  
Cannabis Use ◽  
Control Group ◽  
Web Based ◽  
Randomized Controlled ◽  
Intervention Adherence ◽  
Group Effects

Abstract Background The aim of this study was to investigate the effects of a web-based treatment program with therapist guidance for adults and adolescents with regular cannabis use from the general population. Methods A double blinded randomized controlled trial with a parallel group design was conducted (intervention group n = 151, wait-list control group n = 152). Follow-up 12 weeks from treatment commencement of a 13-module intervention. The primary outcome was frequency of cannabis use. Time by group interaction effects were modeled using generalized estimated equations and the instrumental variable approach was used to estimate the effect of intervention adherence. Results At follow-up, the intention to treat (ITT) analyses did not show any significant time by group effects. A significant association between intervention adherence and scores on the cannabis abuse screening test (CAST) was found. Secondary analysis excluding participants who had received other professional help revealed time by group effects for secondary outcomes gram cannabis consumed past week, number of dependency criteria and CAST score. Due to methodological limitations, these latter results should be interpreted with caution. Conclusions In this study we did not find a web-based treatment program with therapist guidance to be more effective than a waiting-list in reducing frequency of cannabis use. Trial registration The trial was pre-registered at ClinicalTrials.gov (NCT02408640) April 3, 2015

scholarly journals Effectiveness of a Web-Based Self-Help Program for Suicidal Thinking in an Australian Community Sample: Randomized Controlled Trial

2018 ◽  
Vol 20 (2) ◽  
pp. e15 ◽  
Author(s):  
Bregje AJ van Spijker ◽  
Aliza Werner-Seidler ◽  
Philip J Batterham ◽  
Andrew Mackinnon ◽  
Alison L Calear ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Controlled Trial ◽  
Community Sample ◽  
Web Based ◽  
Suicidal Thinking ◽  
Randomized Controlled ◽  
Self Help ◽  
Australian Community

scholarly journals CANreduce 2.0 – the effects of adherence-focused guidance for Internet self-help among cannabis misusers: results of a three-arm randomized controlled trial (Preprint)

2021 ◽  
Author(s):  
Christian Baumgartner ◽  
Michael Patrick Schaub ◽  
Andreas Wenger ◽  
Doris Malischnig ◽  
Mareike Augsburger ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Controlled Trial ◽  
Anxiety Symptoms ◽  
Cannabis Use ◽  
Cannabis Use Disorder ◽  
General Anxiety ◽  
Cannabis Dependence ◽  
Randomized Controlled ◽  
Self Help ◽  
Significant Difference

BACKGROUND Despite increasing demand for treatment among cannabis misusers in many countries, most misusers are not in treatment. Internet-based self-help offers an alternative for those hesitant to seek face-to-face therapy, though low-effectiveness and adherence issues often arise. Through adherence-focused guidance enhancement (AFGE), we aimed to increase adherence to, and the effectiveness of Internet-based self-help among cannabis misusers. OBJECTIVE A three-arm randomized controlled trial was conducted comparing the effectiveness of (1) an AFGE Internet-based self-help intervention with social presence (AFGE-SP), (2) a similar intervention with an impersonal service team (AFGE-ST), and (3) Internet access as usual (IAU, controls). METHODS From July 2016—May 2019, 575 cannabis misusers (70.6% males, mean age=28.3) not otherwise in treatment were recruited from the general population. The primary outcome was cannabis-use days over the preceding 30 days. Secondary outcomes included cannabis-dependence severity, changes in cannabis misuse disorder (CMD) symptoms, and intervention adherence. RESULTS All groups exhibited reduced cannabis-use days after 3 months (AFGE-SP: -8.2; AFGE-ST: -9.8; IAU: -4.2). AFGE-ST participants reported significantly fewer cannabis-use days than IAU controls (P = .01, d = .60); a similar reduction in the AFGE-SP (d=.40) group failed to achieve significance (P =.07). There was no significant difference between the two intervention groups. AFGE-ST patients also exhibited superior improvements in cannabis-use disorder, cannabis-dependence severity, and general anxiety symptoms after three months. CONCLUSIONS Adding an impersonal service team to the AFGE Internet-based self-help intervention significantly reduced cannabis use, cannabis use disorder, dependence severity, and general anxiety symptoms. CLINICALTRIAL http://www.isrctn.com/ISRCTN11086185

scholarly journals Effectiveness of a Web-Based Self-Help Program for Suicidal Thinking in an Australian Community Sample: Randomized Controlled Trial

2017 ◽  
Author(s):  
Bregje AJ van Spijker ◽  
Aliza Werner-Seidler ◽  
Philip J Batterham ◽  
Andrew Mackinnon ◽  
Alison L Calear ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Controlled Trial ◽  
Community Sample ◽  
Web Based ◽  
Suicidal Thinking ◽  
Randomized Controlled ◽  
Self Help ◽  
Australian Community

scholarly journals Reducing suicidal thoughts in the Australian general population through web-based self-help: study protocol for a randomized controlled trial

Trials ◽  
2015 ◽  
Vol 16 (1) ◽  
Author(s):  
Bregje AJ van Spijker ◽  
Alison L Calear ◽  
Philip J Batterham ◽  
Andrew J Mackinnon ◽  
John A Gosling ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
General Population ◽  
Study Protocol ◽  
Controlled Trial ◽  
Suicidal Thoughts ◽  
Web Based ◽  
Randomized Controlled ◽  
Self Help
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