ClinicalTrials.gg
CompletedNCT03924505Updated Dec 12, 2024Results posted

Preventing Opioid Overdose Mortality in the United States

An interventional study of Organize and Mobilize for Implementation Effectiveness and Dissemination in Opioid Overdose, sponsored by RTI International. Completed at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-12-12.

Sponsored by RTI International · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
105
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study aims to conduct a randomized controlled trial of 105 syringe services programs (SSPs) throughout the United States to understand the effectiveness of a multifaceted, facilitation-based strategy at advancing naloxone implementation effectiveness within SSPs. Together, these efforts can improve access to naloxone for people at high risk of overdose, thereby improving our nation's response to the opioid overdose epidemic.

Read the detailed description

We conducted a randomized controlled trial of SSPs throughout the United States (US) and US Territories. Prior to the trial, 342 SSPs were known to be operating throughout the US and US Territories. Our team launched a national survey of syringe services programs (NSSSP) in February 2019 of all known SSPs operating throughout the United States and its Territories, receiving a response from 263 (77%) SSPs. Among the responding SSPs, 94% were implementing overdose education and naloxone distribution (OEND), and a total of 105 of SSPs implementing OEND were recruited into the trial. SSPs were randomized in a 1-to-1 fashion to either receive the OEND best practice recommendations (comparison SSPs) or the OEND best practice recommendations along with facilitation-based implementation strategies as detailed below (intervention SSPs).

We tested the effectiveness of a multifaceted, facilitation-based strategy at advancing OEND implementation effectiveness within SSPs. Implementation effectiveness is 'an organization-level construct that refers to the aggregated consistency, quality, and appropriateness of innovation use (OEND) within an organization (SSP).'

02

Conditions studied

  • Opioid Overdose

Keywords

  • Implementation Science
  • Harm Reduction
03

In context

Opiate Overdose

70 studies on the registry are indexed under Opiate Overdose; 11 are open to participants now.

This study's enrollment of 105 is below the median of 184 across 48 interventional studies indexed under Opiate Overdose.

Browse Opiate Overdose studies →

Lead sponsor

RTI International is the lead sponsor of 84 studies on the registry; 18 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

To be eligible, an organization must have: 1) met the definition of an SSP - an organization whose primary function is to distribute drug use supplies to participants to reduce harms associated with drug use, 2) implemented OEND for a minimum of 6 months, and 3) completed the national survey of syringe services programs fielded February-July 2019. We excluded organizations such as fire departments or emergency departments of hospitals that offered supply distribution since it would be an ancillary function of these organizations and OEND programs that were not part of a syringe services program.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
105 participants (actual)

Study arms

  • Experimental
    Organize and Mobilize for Implementation Effectiveness

    Our approach was based on the Implementation Sustainment Facilitation (ISF), which is grounded in the theory of implementation effectiveness, and added discrete strategies from the Addiction Technology Transfer Center (ATTC), which were considered necessary elements from the original ISF trial. In addition to receiving the OEND best practice recommendations, our multi-component approach used external facilitation as the overarching strategy, by which seven other strategies were leveraged to support SSP staff and leadership. In addition to external facilitation, the multi-faceted approach included: organize implementation team meetings, identify and prepare champions, develop and organize quality monitoring system, assess for readiness and identify barriers, distribute educational materials and resources, conduct educational meetings, and provide ongoing consultation.

    Other: Organize and Mobilize for Implementation Effectiveness

  • Active comparator
    Dissemination of Best Practice Recommendations

    This arm will receive the best practice recommendations for implementing overdose education and naloxone distribution within syringe services programs.

    Other: Dissemination

Interventions

  • OtherOrganize and Mobilize for Implementation Effectiveness

    Our trial is trying to understand how a multi-faceted, facilitation-based implementation strategy advances effective implementation of naloxone within syringe services programs

  • OtherDissemination

    Our comparison group receives dissemination of best practice recommendations for naloxone implementation.

06

What researchers measure

Primary outcomes

  1. Naloxone Coverage (Consistency)

    Mean number of syringe services program participants receiving naloxone per total number of syringe services program participants

    Time frame: 3 months

  2. Naloxone Doses Distributed (Consistency)

    The mean number of naloxone doses distributed per total number of SSP participants

    Time frame: 3 months

  3. Best Practice Adoption (Implementation Quality)

    The mean number of best practices adopted by the SSP

    Time frame: 12 months

07

Results

Posted Dec 12, 2024
Limitations and caveats
A noteworthy limitation with our trial is the reliance on self-report for the number of naloxone doses distributed, number of people receiving naloxone and best practice implementation. However, SSPs routinely report naloxone distribution metrics for funders. Generalizability of our study findings requires careful consideration. While we randomly selected SSPs to participate, it is possible that those that enrolled had different levels of resources than those that did not participate.

Participant flow

Participant flow — Overall Study
MilestoneOrganize and Mobilize for Implementation EffectivenessImplementation Manual - Only
Started5352
Completed5151
Not completed21

Outcome measures

PrimaryNaloxone Coverage (Consistency)

Mean number of syringe services program participants receiving naloxone per total number of syringe services program participants

Time frame:
3 months
Reported as:
Mean · proportion of participants
Naloxone Coverage (Consistency)
proportion of participantsOrganize and Mobilize for Implementation EffectivenessDissemination of Best Practice Recommendations
Naloxone Coverage (Consistency)0.9 ± 1.40.4 ± 0.3
Statistical analysis
  • Organize and Mobilize for Implementation Effectiveness vs Dissemination of Best Practice Recommendations · Negative Binomial Regression · p = <0.01 (A priori threshold for statistical significance set at p\<0.05) · Incidence rate ratio: 2.15 · 95% CI 1.42 to 2.35The incidence rate ratio estimates the effect of facilitation for implementation effectiveness and dissemination of best practice recommendations, as compared to dissemination of best practice recommendations.
PrimaryNaloxone Doses Distributed (Consistency)

The mean number of naloxone doses distributed per total number of SSP participants

Time frame:
3 months
Reported as:
Mean · naloxone doses
Naloxone Doses Distributed (Consistency)
naloxone dosesOrganize and Mobilize for Implementation EffectivenessDissemination of Best Practice Recommendations
Naloxone Doses Distributed (Consistency)2.5 ± 2.61.3 ± 1.2
Statistical analysis
  • Organize and Mobilize for Implementation Effectiveness vs Dissemination of Best Practice Recommendations · Negative Binomial Regression · p = 0.01 (A priori threshold for statistical signicance is p\<0.05) · Incidence rate ratio: 1.97 · 95% CI 1.18 to 3.30The incidence rate ratio estimates the effect of facilitation for implementation effectiveness and dissemination of best practice recommendations, as compared to dissemination of best practice recommendations.
PrimaryBest Practice Adoption (Implementation Quality)

The mean number of best practices adopted by the SSP

Time frame:
12 months
Reported as:
Mean · number of best practices
Best Practice Adoption (Implementation Quality)
number of best practicesOrganize and Mobilize for Implementation EffectivenessImplementation Manual - Only
Best Practice Adoption (Implementation Quality)13.1 (8 to 18)12.9 (8 to 17)
Statistical analysis
  • Organize and Mobilize for Implementation Effectiveness vs Implementation Manual - Only · t-test, 2 sided · p = 0.68 · Mean difference (final values): 0.2 · 95% CI -0.7 to 1.0

Adverse events

Collected over 12 months of the intervention period. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Organize and Mobilize for Implementation Effectiveness0/51 (0%)0/51 (0%)0/51 (0%)
Dissemination of Best Practice Recommendations0/51 (0%)0/51 (0%)0/51 (0%)

Baseline characteristics

Our trial enrolled syringe services programs and randomized them to two arms. This was a study of organizations, not individuals.

Age, Customized
Age, Customized(Participants)Intervention ArmControl ArmTotal
Unknown5352105
Sex/Gender, Customized
Sex/Gender, Customized(Participants)Intervention ArmControl ArmTotal
Female353166
Male161632
Unknown/Not reported257
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Intervention ArmControl ArmTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American426
White453883
More than one race347
Unknown or Not Reported189
08

Study locations

1 site
  • RTI International
    Berkeley, California 94704, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Sep 2019 to primary completion in Mar 2022, 30 months.

Results were first posted in Dec 2024, 2 years 8 months after primary completion.

Of 28 interventional studies with no phase under Opiate Overdose, half reached primary completion within 26 months of starting (the median), counting those still running; a quarter within 14 and three quarters within 41. This study's 30 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 19, 2019
First posted
Apr 23, 2019
StartActual
Sep 3, 2019
Primary completionActual
Mar 14, 2022
CompletionActual
Mar 14, 2022
Results first posted
Dec 12, 2024
Last update
Dec 12, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 12, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03924505
Lead sponsor
RTI International
Responsible party
Barrot Lambdin (Fellow, RTI International) — Principal investigator
First posted
Apr 23, 2019
Start date
Sep 3, 2019
Primary completion
Mar 14, 2022
Completion
Mar 14, 2022
Results posted
Dec 12, 2024
Last update
Dec 12, 2024

Study contacts

Barrot Lambdin, PhD, MPH
principal investigator · RTI International

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Dec 2024. You cannot join it, but the record below documents what was studied.

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