MétaCan
Menu
Back to cohort
Record W4410121885 · doi:10.1080/00952990.2025.2497800

Early experiences and impacts of a fentanyl powder safer supply program in Vancouver, Canada: a qualitative study

2025· article· en· W4410121885 on OpenAlexafffundabout
Andrew Ivsins, Christy Sutherland, Thomas A. Kerr, Mary Clare Kennedy

Bibliographic record

VenueThe American Journal of Drug and Alcohol Abuse · 2025
Typearticle
Languageen
FieldMedicine
TopicOpioid Use Disorder Treatment
Canadian institutionsBritish Columbia Centre on Substance UseUniversity of British Columbia, Okanagan CampusUniversity of British Columbia
FundersNational Institute on Drug AbuseCanadian Institutes of Health ResearchVancouver Coastal HealthNational Institutes of Health
KeywordsSAFERFentanylQualitative researchBusinessMedicineAnesthesiaSociologyComputer scienceComputer security

Abstract

fetched live from OpenAlex

Background: North America is experiencing an unrelenting overdose crisis driven by a volatile and toxic unregulated drug supply. Safer supply programs, which provide individuals with pharmaceutical-grade alternatives to the unregulated drug supply, have been implemented in various Canadian jurisdictions. While most programs provide tablet hydromorphone, the Safer Alternatives for Emergency Response (SAFER) program in Vancouver, Canada, offers pharmaceutical-grade fentanyl, including a powder formulation for witnessed consumption.Objectives: To explore early experiences among SAFER program participants receiving powder fentanyl.Methods: Qualitative one-on-one interviews were conducted with 18 (12 men, 6 women) people prescribed fentanyl powder from the SAFER program. Interview coding and analysis involved a team-based approach to identify common themes related to program experiences, focusing on impacts on unregulated drug use.Results: Most (13/18; 72%) participants reported reducing unregulated drug use since program enrollment. This was largely attributed to the SAFER fentanyl powder being effective for managing withdrawal, thereby limiting their need to access street-purchased drugs. Additionally, some participants, particularly those prescribed higher doses, suggested that SAFER fentanyl powder, unlike other safe supply medications, was a suitable alternative to street-purchased fentanyl. Participants also reported reduced overdose risk. Operating hours and dosing challenges were barriers to program engagement contributing to continued unregulated drug use for some.Conclusion: Our findings demonstrate a number of positive outcomes of the SAFER program and suggest that fentanyl safer supply has the potential to play a useful role in addressing the ongoing overdose crisis.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.004
metaresearch head score (Gemma)0.007
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Qualitative · Consensus signal: Qualitative
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.088
Threshold uncertainty score0.336

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0040.007
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.003
Science and technology studies0.0230.009
Scholarly communication0.0050.002
Open science0.0030.005
Research integrity0.0020.004
Insufficient payload (model declined to judge)0.0040.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.010
GPT teacher head0.324
Teacher spread0.314 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designQualitative
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2025
Admission routes3
Has abstractyes

Explore more

Same venueThe American Journal of Drug and Alcohol AbuseSame topicOpioid Use Disorder TreatmentFrench-language works237,207