Personality and Drug Use (PDU)
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ClinicalTrials.gov Identifier: NCT05516823 |
Recruitment Status :
Not yet recruiting
First Posted : August 26, 2022
Last Update Posted : September 28, 2022
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Tracking Information | |||||||||||||||||||||
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First Submitted Date | July 18, 2022 | ||||||||||||||||||||
First Posted Date | August 26, 2022 | ||||||||||||||||||||
Last Update Posted Date | September 28, 2022 | ||||||||||||||||||||
Estimated Study Start Date | November 2022 | ||||||||||||||||||||
Estimated Primary Completion Date | November 2023 (Final data collection date for primary outcome measure) | ||||||||||||||||||||
Current Primary Outcome Measures |
Change in scores on Big Five Inventory (BFI-44) [ Time Frame: Measured twice: once referring to participants' personality from a period of their youth (18-21 years old) and the second time: the current moment, how they perceived their personality in general terms. ] The study will collect measures of past (youth) and current BFI scores. A separate score will be reported for each of the 5 personality traits measured by the inventory. Each score is computed by averaging the items associated with a given domain. Scores for each domain vary from 1 to 5, with higher scores meaning that a given trait is more present and noticeable in personality of the person that provided the answers.
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Original Primary Outcome Measures | Same as current | ||||||||||||||||||||
Change History | |||||||||||||||||||||
Current Secondary Outcome Measures |
Change in scores on Retrospective Personality Scale (RPS) [ Time Frame: Measured twice: once referring to participants' personality from a period of their youth (18-21 years old) and the second time: the current moment, how they perceived their personality in general terms. ] The study will collect measures of past (youth) and current RPS scores. A separate score will be reported for each of the 2 personality domains: positive and negative. Each of the 20 items is scored on a 3-point scale, using the following encoding: -1 (=Less), (=Without change), 1 (=More). Mean scores of 10 items for each of the domains (positive and negative) form the total score. Score Interpretation: For the positive domain, the mean score of 0 indicates no changes in personality, whereas the positive mean score (larger than 0) indicates positive changes in personality and scores below 0 point out negative changes. The reverse interpretation is true for the negative domain, with a mean score of 0 indicating no changes.
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Original Secondary Outcome Measures | Same as current | ||||||||||||||||||||
Current Other Pre-specified Outcome Measures | Not Provided | ||||||||||||||||||||
Original Other Pre-specified Outcome Measures | Not Provided | ||||||||||||||||||||
Descriptive Information | |||||||||||||||||||||
Brief Title | Personality and Drug Use | ||||||||||||||||||||
Official Title | Personality and Drug Use | ||||||||||||||||||||
Brief Summary | This is an observational, naturalistic study that aims to assess whether people with different histories of recreational or therapeutic illicit substance use (or no history at all) will differ in terms of their personalities. | ||||||||||||||||||||
Detailed Description | The study aims to assess the association between the use of various substances (including psychedelic and non-psychedelic drugs) and personality profiles. Specifically, the study will investigate if people with different histories of drug use differ in personality profiles. As psychedelics were found to influence changes in personality over time, the investigators sought to measure both the current personality profile (via the Big Five Inventory-44 (BFI)) and perceived retrospective changes in personality (via a self-constructed Retrospective Personality Scale (RPS). To investigators' knowledge, no study has explored the diversity of substance use histories in relation to individual current and retrospective personality traits and aggregate personality profiles. The investigators aim to survey a large number of participants from all around the world, using a mobile app-based survey. The remote character of the study will increase its accessibility and diversity, which are common shortcomings in the psychedelic line of research. Additionally, a remote and anonymous study setup with no face-to-face interactions might help overcome any potential concerns participants may have regarding the sharing of sensitive information (e.g., reports on illicit substance use). To increase scientific transparency and for educational purposes (comparing personalized results with the aggregated results of participants with similar socio-demographic profiles), investigators plan to share personalized results summaries with participants of the study, which might be an additional motivating factor for study completion. In conclusion, this large-scale, low-budget, naturalistic, retrospective, observational study aims to shed light on the aforementioned gap in the literature and lay a foundation of evidence for further research. |
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Study Type | Observational | ||||||||||||||||||||
Study Design | Observational Model: Case-Control Time Perspective: Retrospective |
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Target Follow-Up Duration | Not Provided | ||||||||||||||||||||
Biospecimen | Not Provided | ||||||||||||||||||||
Sampling Method | Non-Probability Sample | ||||||||||||||||||||
Study Population | Adults (age of 18 or above) of full mental and legal capacities. | ||||||||||||||||||||
Condition | No Conditions Study Focus on Substance Use and Personality | ||||||||||||||||||||
Intervention | Other: Usage of drugs
Self-reported past usage of drugs belonging to different chemical groups.
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Study Groups/Cohorts |
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Publications * | Not Provided | ||||||||||||||||||||
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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Recruitment Information | |||||||||||||||||||||
Recruitment Status | Not yet recruiting | ||||||||||||||||||||
Estimated Enrollment |
1000 | ||||||||||||||||||||
Original Estimated Enrollment | Same as current | ||||||||||||||||||||
Estimated Study Completion Date | November 2023 | ||||||||||||||||||||
Estimated Primary Completion Date | November 2023 (Final data collection date for primary outcome measure) | ||||||||||||||||||||
Eligibility Criteria | Inclusion Criteria:
Exclusion Criteria:
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Sex/Gender |
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Ages | 18 Years and older (Adult, Older Adult) | ||||||||||||||||||||
Accepts Healthy Volunteers | Not Provided | ||||||||||||||||||||
Contacts |
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Listed Location Countries | Not Provided | ||||||||||||||||||||
Removed Location Countries | |||||||||||||||||||||
Administrative Information | |||||||||||||||||||||
NCT Number | NCT05516823 | ||||||||||||||||||||
Other Study ID Numbers | 21017 Personality and Drug Use | ||||||||||||||||||||
Has Data Monitoring Committee | No | ||||||||||||||||||||
U.S. FDA-regulated Product |
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IPD Sharing Statement |
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Current Responsible Party | Psychedelic Data Society | ||||||||||||||||||||
Original Responsible Party | Same as current | ||||||||||||||||||||
Current Study Sponsor | Psychedelic Data Society | ||||||||||||||||||||
Original Study Sponsor | Same as current | ||||||||||||||||||||
Collaborators |
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Investigators |
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PRS Account | Psychedelic Data Society | ||||||||||||||||||||
Verification Date | August 2022 |