NCT06768814

Brief Summary

The study is a quasi-experimental investigation of a sub-acute stabilization center (SASC) for people who have had or are at risk for having an opioid overdose and have an encounter with Seattle Fire Department emergency medical services (EMS) in Seattle, WA. Those transported to the SASC are the intervention participants and two comparison groups will be utilized: eligible Seattle EMS patients who opt not to go to the SASC and King County residents, outside of Seattle, who meet the same eligibility criteria. A comparative interrupted time series analysis is planned to study the main effectiveness outcomes. Seattle Fire EMS will assess, refer, and arrange transport for participants to the SASC. The SASC will offer an array of services including post-overdose monitoring, utilization of buprenorphine and methadone for the treatment opioid use disorder and opioid withdrawal, linkage to ongoing care for OUD, and provision of harm reduction services and supplies. The length of stay in the SASC will be limited to less than 24 hours. A continuous process improvement (CPI) approach will monitor and refine the intervention. Characterization of the interventions will be based upon analysis of service utilization patterns over time along with interviews and surveys with stakeholders.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40,000

participants targeted

Target at P75+ for not_applicable

Timeline
37mo left

Started Dec 2024

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress31%
Dec 2024May 2029

Study Start

First participant enrolled

December 15, 2024

Completed
22 days until next milestone

First Submitted

Initial submission to the registry

January 6, 2025

Completed
4 days until next milestone

First Posted

Study publicly available on registry

January 10, 2025

Completed
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2028

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2029

Last Updated

May 6, 2026

Status Verified

May 1, 2026

Enrollment Period

3.5 years

First QC Date

January 6, 2025

Last Update Submit

May 4, 2026

Conditions

Keywords

opioid overdoseopioid poisoningharm-reductionsub-acute stabilization

Outcome Measures

Primary Outcomes (6)

  • Repeat opioid overdose

    One of more opioid overdoses after enrollment

    1 year

  • MOUD initiation

    Starting opioid use disorder treatment with buprenorphine, methadone or naltrexone

    1 year

  • MOUD retention

    Having one or more additional doses prescribed, administered or dispensed of buprenorphine, methadone, or naltrexone

    1 year

  • Emergency department utilization

    Having one or more all-cause emergency department admission

    1 year

  • EMS utilization

    Having one or more emergency medical service encounters

    1 year

  • Cost-effectiveness

    Analysis from the perspective of a public sector payer of the per unit cost of reduced opioid overdoses attributable to the diversion program

    1 year

Other Outcomes (3)

  • Service utilization patterns

    1 year

  • Staff observations

    1 year

  • Continuous process improvement (CPI) partner observations

    1 year

Study Arms (2)

Intervention

OTHER

The sub-acute stabilization center will combine: 1) post-overdose medical and social support, 2) the offer of starting medications for opioid use disorder, and 3) harm reduction services and supplies.

Behavioral: Sub-acute stabilization

Comparison

NO INTERVENTION

Eligible Seattle EMS patients who opt not to go to the sub-acute stabilization center, and King County residents, outside of Seattle, who meet the same eligibility criteria.

Interventions

The sub-acute stabilization center (SASC) is for people who have had or are at risk for having an opioid overdose and have an encounter with Seattle Fire Department emergency medical services (EMS) in Seattle, WA. Those transported to the SASC are the intervention participants and two comparison groups will be utilized: eligible Seattle EMS patients who opt not to go to the SASC and King County residents, outside of Seattle, who meet the same eligibility criteria. A comparative interrupted time series analysis is planned to study the main effectiveness outcomes. Seattle Fire EMS will assess, refer, and arrange transport participants to the SASC. The SASC will offer an array of services including post-overdose monitoring, utilization of buprenorphine and methadone for the treatment opioid use disorder and opioid withdrawal, linkage to ongoing care for OUD, and provision of harm reduction services and supplies. The length of stay in the SASC will be limited to less than 24 hours.

Intervention

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Verbally consents to transfer of care to SASC.
  • Awake and oriented to person and place, with no significant deficits in mental status or neurological function.
  • Age \>=18
  • Patent airway and effective respirations with adequate oxygenation.
  • Stable heart rate and blood pressure, with no evidence of cardiac arrhythmias or other significant cardiovascular disfunction.
  • Vitals:
  • Heart rate: 45-130
  • Blood pressure: systolic 95-190, diastolic 50-120
  • Respiratory rate: 10-24
  • SpO2: \>92 on room air or supplemental O2 via nasal cannula.
  • SpO2 \<92% with supplemental O2 requires ED transfer.
  • EtCO2: \<50
  • Temperature: 95.5-100.3 F
  • Blood glucose (if indicated): 60-300
  • No signs of head trauma:
  • +10 more criteria

You may not qualify if:

  • \- People under 18 and who do not meet SASC admission criteria will be excluded.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Downtown Emergency Service Center's Overdose Recovery and Care Access Centers

Seattle, Washington, 98104, United States

RECRUITING

MeSH Terms

Conditions

Opioid-Related DisordersOpiate OverdoseHarm Reduction

Condition Hierarchy (Ancestors)

Narcotic-Related DisordersSubstance-Related DisordersChemically-Induced DisordersMental DisordersDrug OverdosePrescription Drug MisuseDrug MisuseBehavior

Study Officials

  • Caleb Banta-Green, PhD, MPH, MSW

    University of Washington

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Anthony S Floyd, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Research Professor, School of Medicine, Psychiatry

Study Record Dates

First Submitted

January 6, 2025

First Posted

January 10, 2025

Study Start

December 15, 2024

Primary Completion (Estimated)

May 31, 2028

Study Completion (Estimated)

May 31, 2029

Last Updated

May 6, 2026

Record last verified: 2026-05

Locations