Trial Outcomes & Findings for XRB vs. SLB in Jail and at Re-entry: Pilot, Proof of Concept (NCT NCT03604159)

NCT ID: NCT03604159

Last Updated: 2022-01-11

Results Overview

Retained on any form of community buprenorphine treatment at Week 8

• Recruitment status: COMPLETED
• Study phase: PHASE4
• Target enrollment: 52 participants
• Primary outcome timeframe: 8 Weeks
• Results posted on: 2022-01-11

Participant Flow

Participant milestones

Measure	Buprenorphine Extended-Release XRB is a 300mg pre-mixed subcutaneous injectable formulation to be administered monthly. XRB is for abdominal subcutaneous injection only. Participants in the XRB treatment arm will be given 1 or more XRB injections prior to release from jail and one more at week 5 post-release, depending on their release date. Buprenorphine Extended Release: XRB is available in dosage strengths of 100 mg/0.5 mL and 300 mg/1.5 mL buprenorphine. Each dose is provided in a prefilled syringe with a 19 gauge 5/8-inch needle.	Sublingual Buprenorphine SLB (SUBOXONE, Zubsolv, or generic tablets) is a daily sublingual film or tablet ranging from 8-24mg/day or equivalent (Zubsolv is dosed 5.7-17.1 mg/day). The film or tablet is placed under the tongue for 5 to 10 minutes until dissolved completely. Participants in the SLB treatment arm will be provided SLB daily by observed dosing in-jail (controlled substances are not self-administered in-jail) and and encouraged to continue SLB treatment in weekly, bi-weekly, or monthly quantities for unobserved, daily, self-administration through week 5. Patients may also elect to obtain SLB care free-of-charge from the Bellevue Hospital Center Addiction Medicine clinic or from non-NYU/Bellevue providers and pharmacies per usual care standards. SLB will not be provided via the study. Sublingual Buprenorphine (SUBOXONE, Zubsolv, or generic tablets): SLB is administered sublingually or buccally as a single daily dose. Medication should be prescribed in consideration of the frequency of visits. Provision of multiple refills is not advised in early treatment or without appropriate follow-up visits. After treatment induction and stabilization, the maintenance dose of SLB is generally in the range of 4mg/1mg buprenorphine/naloxone to 24mg/6mg buprenorphine/naloxone per day depending on the individual patient and clinical response.
Overall Study STARTED	26	26
Overall Study COMPLETED	20	19
Overall Study NOT COMPLETED	6	7

Reasons for withdrawal

Measure	Buprenorphine Extended-Release XRB is a 300mg pre-mixed subcutaneous injectable formulation to be administered monthly. XRB is for abdominal subcutaneous injection only. Participants in the XRB treatment arm will be given 1 or more XRB injections prior to release from jail and one more at week 5 post-release, depending on their release date. Buprenorphine Extended Release: XRB is available in dosage strengths of 100 mg/0.5 mL and 300 mg/1.5 mL buprenorphine. Each dose is provided in a prefilled syringe with a 19 gauge 5/8-inch needle.	Sublingual Buprenorphine SLB (SUBOXONE, Zubsolv, or generic tablets) is a daily sublingual film or tablet ranging from 8-24mg/day or equivalent (Zubsolv is dosed 5.7-17.1 mg/day). The film or tablet is placed under the tongue for 5 to 10 minutes until dissolved completely. Participants in the SLB treatment arm will be provided SLB daily by observed dosing in-jail (controlled substances are not self-administered in-jail) and and encouraged to continue SLB treatment in weekly, bi-weekly, or monthly quantities for unobserved, daily, self-administration through week 5. Patients may also elect to obtain SLB care free-of-charge from the Bellevue Hospital Center Addiction Medicine clinic or from non-NYU/Bellevue providers and pharmacies per usual care standards. SLB will not be provided via the study. Sublingual Buprenorphine (SUBOXONE, Zubsolv, or generic tablets): SLB is administered sublingually or buccally as a single daily dose. Medication should be prescribed in consideration of the frequency of visits. Provision of multiple refills is not advised in early treatment or without appropriate follow-up visits. After treatment induction and stabilization, the maintenance dose of SLB is generally in the range of 4mg/1mg buprenorphine/naloxone to 24mg/6mg buprenorphine/naloxone per day depending on the individual patient and clinical response.
Overall Study Lost to Follow-up	6	7

Baseline Characteristics

XRB vs. SLB in Jail and at Re-entry: Pilot, Proof of Concept

Baseline characteristics by cohort

Measure	Buprenorphine Extended-Release n=26 Participants XRB is a 300mg pre-mixed subcutaneous injectable formulation to be administered monthly. XRB is for abdominal subcutaneous injection only. Participants in the XRB treatment arm will be given 1 or more XRB injections prior to release from jail and one more at week 5 post-release, depending on their release date. Buprenorphine Extended Release: XRB is available in dosage strengths of 100 mg/0.5 mL and 300 mg/1.5 mL buprenorphine. Each dose is provided in a prefilled syringe with a 19 gauge 5/8-inch needle.	Sublingual Buprenorphine n=26 Participants SLB (SUBOXONE, Zubsolv, or generic tablets) is a daily sublingual film or tablet ranging from 8-24mg/day or equivalent (Zubsolv is dosed 5.7-17.1 mg/day). The film or tablet is placed under the tongue for 5 to 10 minutes until dissolved completely. Participants in the SLB treatment arm will be provided SLB daily by observed dosing in-jail (controlled substances are not self-administered in-jail) and and encouraged to continue SLB treatment in weekly, bi-weekly, or monthly quantities for unobserved, daily, self-administration through week 5. Patients may also elect to obtain SLB care free-of-charge from the Bellevue Hospital Center Addiction Medicine clinic or from non-NYU/Bellevue providers and pharmacies per usual care standards. SLB will not be provided via the study. Sublingual Buprenorphine (SUBOXONE, Zubsolv, or generic tablets): SLB is administered sublingually or buccally as a single daily dose. Medication should be prescribed in consideration of the frequency of visits. Provision of multiple refills is not advised in early treatment or without appropriate follow-up visits. After treatment induction and stabilization, the maintenance dose of SLB is generally in the range of 4mg/1mg buprenorphine/naloxone to 24mg/6mg buprenorphine/naloxone per day depending on the individual patient and clinical response.	Total n=52 Participants Total of all reporting groups
Age, Continuous	43.1 years STANDARD_DEVIATION 9.2 • n=5 Participants	42.3 years STANDARD_DEVIATION 10.8 • n=7 Participants	42.7 years STANDARD_DEVIATION 10 • n=5 Participants
Sex: Female, Male Female	3 Participants n=5 Participants	4 Participants n=7 Participants	7 Participants n=5 Participants
Sex: Female, Male Male	23 Participants n=5 Participants	22 Participants n=7 Participants	45 Participants n=5 Participants
Ethnicity (NIH/OMB) Hispanic or Latino	14 Participants n=5 Participants	9 Participants n=7 Participants	23 Participants n=5 Participants
Ethnicity (NIH/OMB) Not Hispanic or Latino	12 Participants n=5 Participants	17 Participants n=7 Participants	29 Participants n=5 Participants
Ethnicity (NIH/OMB) Unknown or Not Reported	0 Participants n=5 Participants	0 Participants n=7 Participants	0 Participants n=5 Participants
Race (NIH/OMB) American Indian or Alaska Native	0 Participants n=5 Participants	0 Participants n=7 Participants	0 Participants n=5 Participants
Race (NIH/OMB) Asian	0 Participants n=5 Participants	1 Participants n=7 Participants	1 Participants n=5 Participants
Race (NIH/OMB) Native Hawaiian or Other Pacific Islander	0 Participants n=5 Participants	0 Participants n=7 Participants	0 Participants n=5 Participants
Race (NIH/OMB) Black or African American	6 Participants n=5 Participants	9 Participants n=7 Participants	15 Participants n=5 Participants
Race (NIH/OMB) White	7 Participants n=5 Participants	12 Participants n=7 Participants	19 Participants n=5 Participants
Race (NIH/OMB) More than one race	13 Participants n=5 Participants	4 Participants n=7 Participants	17 Participants n=5 Participants
Race (NIH/OMB) Unknown or Not Reported	0 Participants n=5 Participants	0 Participants n=7 Participants	0 Participants n=5 Participants
Region of Enrollment United States	26 participants n=5 Participants	26 participants n=7 Participants	52 participants n=5 Participants

PRIMARY outcome

Timeframe: 8 Weeks

Retained on any form of community buprenorphine treatment at Week 8

Outcome measures

Measure	Buprenorphine Extended-Release n=26 Participants XRB is a 300mg pre-mixed subcutaneous injectable formulation to be administered monthly. XRB is for abdominal subcutaneous injection only. Participants in the XRB treatment arm will be given 1 or more XRB injections prior to release from jail and one more at week 5 post-release, depending on their release date. Buprenorphine Extended Release: XRB is available in dosage strengths of 100 mg/0.5 mL and 300 mg/1.5 mL buprenorphine. Each dose is provided in a prefilled syringe with a 19 gauge 5/8-inch needle.	Sublingual Buprenorphine n=26 Participants SLB (SUBOXONE, Zubsolv, or generic tablets) is a daily sublingual film or tablet ranging from 8-24mg/day or equivalent (Zubsolv is dosed 5.7-17.1 mg/day). The film or tablet is placed under the tongue for 5 to 10 minutes until dissolved completely. Participants in the SLB treatment arm will be provided SLB daily by observed dosing in-jail (controlled substances are not self-administered in-jail) and and encouraged to continue SLB treatment in weekly, bi-weekly, or monthly quantities for unobserved, daily, self-administration through week 5. Patients may also elect to obtain SLB care free-of-charge from the Bellevue Hospital Center Addiction Medicine clinic or from non-NYU/Bellevue providers and pharmacies per usual care standards. SLB will not be provided via the study. Sublingual Buprenorphine (SUBOXONE, Zubsolv, or generic tablets): SLB is administered sublingually or buccally as a single daily dose. Medication should be prescribed in consideration of the frequency of visits. Provision of multiple refills is not advised in early treatment or without appropriate follow-up visits. After treatment induction and stabilization, the maintenance dose of SLB is generally in the range of 4mg/1mg buprenorphine/naloxone to 24mg/6mg buprenorphine/naloxone per day depending on the individual patient and clinical response.
# of Participants Retained on Any Form of Community Buprenorphine (Not Randomzied tx) at Week 8	18 Participants	9 Participants

PRIMARY outcome

Timeframe: 8 weeks

Retained on assigned treatment at Week 8

Outcome measures

Measure	Buprenorphine Extended-Release n=26 Participants XRB is a 300mg pre-mixed subcutaneous injectable formulation to be administered monthly. XRB is for abdominal subcutaneous injection only. Participants in the XRB treatment arm will be given 1 or more XRB injections prior to release from jail and one more at week 5 post-release, depending on their release date. Buprenorphine Extended Release: XRB is available in dosage strengths of 100 mg/0.5 mL and 300 mg/1.5 mL buprenorphine. Each dose is provided in a prefilled syringe with a 19 gauge 5/8-inch needle.	Sublingual Buprenorphine n=26 Participants SLB (SUBOXONE, Zubsolv, or generic tablets) is a daily sublingual film or tablet ranging from 8-24mg/day or equivalent (Zubsolv is dosed 5.7-17.1 mg/day). The film or tablet is placed under the tongue for 5 to 10 minutes until dissolved completely. Participants in the SLB treatment arm will be provided SLB daily by observed dosing in-jail (controlled substances are not self-administered in-jail) and and encouraged to continue SLB treatment in weekly, bi-weekly, or monthly quantities for unobserved, daily, self-administration through week 5. Patients may also elect to obtain SLB care free-of-charge from the Bellevue Hospital Center Addiction Medicine clinic or from non-NYU/Bellevue providers and pharmacies per usual care standards. SLB will not be provided via the study. Sublingual Buprenorphine (SUBOXONE, Zubsolv, or generic tablets): SLB is administered sublingually or buccally as a single daily dose. Medication should be prescribed in consideration of the frequency of visits. Provision of multiple refills is not advised in early treatment or without appropriate follow-up visits. After treatment induction and stabilization, the maintenance dose of SLB is generally in the range of 4mg/1mg buprenorphine/naloxone to 24mg/6mg buprenorphine/naloxone per day depending on the individual patient and clinical response.
# of Participants Retained on Their Randomly Assigned Treatment at Week 8	15 Participants	9 Participants

PRIMARY outcome

Timeframe: 8 weeks

Weeks (0-8) on buprenorphine treatment, mean (SD)

Outcome measures

Measure	Buprenorphine Extended-Release n=26 Participants XRB is a 300mg pre-mixed subcutaneous injectable formulation to be administered monthly. XRB is for abdominal subcutaneous injection only. Participants in the XRB treatment arm will be given 1 or more XRB injections prior to release from jail and one more at week 5 post-release, depending on their release date. Buprenorphine Extended Release: XRB is available in dosage strengths of 100 mg/0.5 mL and 300 mg/1.5 mL buprenorphine. Each dose is provided in a prefilled syringe with a 19 gauge 5/8-inch needle.	Sublingual Buprenorphine n=26 Participants SLB (SUBOXONE, Zubsolv, or generic tablets) is a daily sublingual film or tablet ranging from 8-24mg/day or equivalent (Zubsolv is dosed 5.7-17.1 mg/day). The film or tablet is placed under the tongue for 5 to 10 minutes until dissolved completely. Participants in the SLB treatment arm will be provided SLB daily by observed dosing in-jail (controlled substances are not self-administered in-jail) and and encouraged to continue SLB treatment in weekly, bi-weekly, or monthly quantities for unobserved, daily, self-administration through week 5. Patients may also elect to obtain SLB care free-of-charge from the Bellevue Hospital Center Addiction Medicine clinic or from non-NYU/Bellevue providers and pharmacies per usual care standards. SLB will not be provided via the study. Sublingual Buprenorphine (SUBOXONE, Zubsolv, or generic tablets): SLB is administered sublingually or buccally as a single daily dose. Medication should be prescribed in consideration of the frequency of visits. Provision of multiple refills is not advised in early treatment or without appropriate follow-up visits. After treatment induction and stabilization, the maintenance dose of SLB is generally in the range of 4mg/1mg buprenorphine/naloxone to 24mg/6mg buprenorphine/naloxone per day depending on the individual patient and clinical response.
Mean # of Weeks (0-8) on Any Buprenorphine Treatment	6.1 weeks Standard Deviation 3.5	2.6 weeks Standard Deviation 3.2

PRIMARY outcome

Timeframe: 8 weeks

number of opioid-negative urine samples

Outcome measures

Measure	Buprenorphine Extended-Release n=100 Urine Tests XRB is a 300mg pre-mixed subcutaneous injectable formulation to be administered monthly. XRB is for abdominal subcutaneous injection only. Participants in the XRB treatment arm will be given 1 or more XRB injections prior to release from jail and one more at week 5 post-release, depending on their release date. Buprenorphine Extended Release: XRB is available in dosage strengths of 100 mg/0.5 mL and 300 mg/1.5 mL buprenorphine. Each dose is provided in a prefilled syringe with a 19 gauge 5/8-inch needle.	Sublingual Buprenorphine n=100 Urine Tests SLB (SUBOXONE, Zubsolv, or generic tablets) is a daily sublingual film or tablet ranging from 8-24mg/day or equivalent (Zubsolv is dosed 5.7-17.1 mg/day). The film or tablet is placed under the tongue for 5 to 10 minutes until dissolved completely. Participants in the SLB treatment arm will be provided SLB daily by observed dosing in-jail (controlled substances are not self-administered in-jail) and and encouraged to continue SLB treatment in weekly, bi-weekly, or monthly quantities for unobserved, daily, self-administration through week 5. Patients may also elect to obtain SLB care free-of-charge from the Bellevue Hospital Center Addiction Medicine clinic or from non-NYU/Bellevue providers and pharmacies per usual care standards. SLB will not be provided via the study. Sublingual Buprenorphine (SUBOXONE, Zubsolv, or generic tablets): SLB is administered sublingually or buccally as a single daily dose. Medication should be prescribed in consideration of the frequency of visits. Provision of multiple refills is not advised in early treatment or without appropriate follow-up visits. After treatment induction and stabilization, the maintenance dose of SLB is generally in the range of 4mg/1mg buprenorphine/naloxone to 24mg/6mg buprenorphine/naloxone per day depending on the individual patient and clinical response.
Urine Samples Opioid-negative	72 urine samples	50 urine samples

PRIMARY outcome

Timeframe: 8 weeks

Re-incarceration

Outcome measures

Measure	Buprenorphine Extended-Release n=26 Participants XRB is a 300mg pre-mixed subcutaneous injectable formulation to be administered monthly. XRB is for abdominal subcutaneous injection only. Participants in the XRB treatment arm will be given 1 or more XRB injections prior to release from jail and one more at week 5 post-release, depending on their release date. Buprenorphine Extended Release: XRB is available in dosage strengths of 100 mg/0.5 mL and 300 mg/1.5 mL buprenorphine. Each dose is provided in a prefilled syringe with a 19 gauge 5/8-inch needle.	Sublingual Buprenorphine n=26 Participants SLB (SUBOXONE, Zubsolv, or generic tablets) is a daily sublingual film or tablet ranging from 8-24mg/day or equivalent (Zubsolv is dosed 5.7-17.1 mg/day). The film or tablet is placed under the tongue for 5 to 10 minutes until dissolved completely. Participants in the SLB treatment arm will be provided SLB daily by observed dosing in-jail (controlled substances are not self-administered in-jail) and and encouraged to continue SLB treatment in weekly, bi-weekly, or monthly quantities for unobserved, daily, self-administration through week 5. Patients may also elect to obtain SLB care free-of-charge from the Bellevue Hospital Center Addiction Medicine clinic or from non-NYU/Bellevue providers and pharmacies per usual care standards. SLB will not be provided via the study. Sublingual Buprenorphine (SUBOXONE, Zubsolv, or generic tablets): SLB is administered sublingually or buccally as a single daily dose. Medication should be prescribed in consideration of the frequency of visits. Provision of multiple refills is not advised in early treatment or without appropriate follow-up visits. After treatment induction and stabilization, the maintenance dose of SLB is generally in the range of 4mg/1mg buprenorphine/naloxone to 24mg/6mg buprenorphine/naloxone per day depending on the individual patient and clinical response.
the # of Participants Re-incarcerated	2 Participants	4 Participants

PRIMARY outcome

Timeframe: Post-randomization and pre-release, (0-3 months)

Jail medical clinic visits per day following study medication induciton, mean

Outcome measures

Measure	Buprenorphine Extended-Release n=26 Participants XRB is a 300mg pre-mixed subcutaneous injectable formulation to be administered monthly. XRB is for abdominal subcutaneous injection only. Participants in the XRB treatment arm will be given 1 or more XRB injections prior to release from jail and one more at week 5 post-release, depending on their release date. Buprenorphine Extended Release: XRB is available in dosage strengths of 100 mg/0.5 mL and 300 mg/1.5 mL buprenorphine. Each dose is provided in a prefilled syringe with a 19 gauge 5/8-inch needle.	Sublingual Buprenorphine n=26 Participants SLB (SUBOXONE, Zubsolv, or generic tablets) is a daily sublingual film or tablet ranging from 8-24mg/day or equivalent (Zubsolv is dosed 5.7-17.1 mg/day). The film or tablet is placed under the tongue for 5 to 10 minutes until dissolved completely. Participants in the SLB treatment arm will be provided SLB daily by observed dosing in-jail (controlled substances are not self-administered in-jail) and and encouraged to continue SLB treatment in weekly, bi-weekly, or monthly quantities for unobserved, daily, self-administration through week 5. Patients may also elect to obtain SLB care free-of-charge from the Bellevue Hospital Center Addiction Medicine clinic or from non-NYU/Bellevue providers and pharmacies per usual care standards. SLB will not be provided via the study. Sublingual Buprenorphine (SUBOXONE, Zubsolv, or generic tablets): SLB is administered sublingually or buccally as a single daily dose. Medication should be prescribed in consideration of the frequency of visits. Provision of multiple refills is not advised in early treatment or without appropriate follow-up visits. After treatment induction and stabilization, the maintenance dose of SLB is generally in the range of 4mg/1mg buprenorphine/naloxone to 24mg/6mg buprenorphine/naloxone per day depending on the individual patient and clinical response.
The Mean In-jail Medical Visits Per Day Following Randomization and Induction on Study Medication	0.11 jail clinic visits per day Interval 0.05 to 0.16	1.06 jail clinic visits per day Interval 0.88 to 1.23

SECONDARY outcome

Timeframe: 8 Weeks

Received assigned study medication

Outcome measures

Measure	Buprenorphine Extended-Release n=26 Participants XRB is a 300mg pre-mixed subcutaneous injectable formulation to be administered monthly. XRB is for abdominal subcutaneous injection only. Participants in the XRB treatment arm will be given 1 or more XRB injections prior to release from jail and one more at week 5 post-release, depending on their release date. Buprenorphine Extended Release: XRB is available in dosage strengths of 100 mg/0.5 mL and 300 mg/1.5 mL buprenorphine. Each dose is provided in a prefilled syringe with a 19 gauge 5/8-inch needle.	Sublingual Buprenorphine n=26 Participants SLB (SUBOXONE, Zubsolv, or generic tablets) is a daily sublingual film or tablet ranging from 8-24mg/day or equivalent (Zubsolv is dosed 5.7-17.1 mg/day). The film or tablet is placed under the tongue for 5 to 10 minutes until dissolved completely. Participants in the SLB treatment arm will be provided SLB daily by observed dosing in-jail (controlled substances are not self-administered in-jail) and and encouraged to continue SLB treatment in weekly, bi-weekly, or monthly quantities for unobserved, daily, self-administration through week 5. Patients may also elect to obtain SLB care free-of-charge from the Bellevue Hospital Center Addiction Medicine clinic or from non-NYU/Bellevue providers and pharmacies per usual care standards. SLB will not be provided via the study. Sublingual Buprenorphine (SUBOXONE, Zubsolv, or generic tablets): SLB is administered sublingually or buccally as a single daily dose. Medication should be prescribed in consideration of the frequency of visits. Provision of multiple refills is not advised in early treatment or without appropriate follow-up visits. After treatment induction and stabilization, the maintenance dose of SLB is generally in the range of 4mg/1mg buprenorphine/naloxone to 24mg/6mg buprenorphine/naloxone per day depending on the individual patient and clinical response.
The # of Participants That Received Their Randomly Assigned Study Medication	24 Participants	26 Participants

SECONDARY outcome

Timeframe: 0-3 months (pre-release)

Received assigned study medication prior to release as scheduled

Outcome measures

Measure	Buprenorphine Extended-Release n=26 Participants XRB is a 300mg pre-mixed subcutaneous injectable formulation to be administered monthly. XRB is for abdominal subcutaneous injection only. Participants in the XRB treatment arm will be given 1 or more XRB injections prior to release from jail and one more at week 5 post-release, depending on their release date. Buprenorphine Extended Release: XRB is available in dosage strengths of 100 mg/0.5 mL and 300 mg/1.5 mL buprenorphine. Each dose is provided in a prefilled syringe with a 19 gauge 5/8-inch needle.	Sublingual Buprenorphine n=26 Participants SLB (SUBOXONE, Zubsolv, or generic tablets) is a daily sublingual film or tablet ranging from 8-24mg/day or equivalent (Zubsolv is dosed 5.7-17.1 mg/day). The film or tablet is placed under the tongue for 5 to 10 minutes until dissolved completely. Participants in the SLB treatment arm will be provided SLB daily by observed dosing in-jail (controlled substances are not self-administered in-jail) and and encouraged to continue SLB treatment in weekly, bi-weekly, or monthly quantities for unobserved, daily, self-administration through week 5. Patients may also elect to obtain SLB care free-of-charge from the Bellevue Hospital Center Addiction Medicine clinic or from non-NYU/Bellevue providers and pharmacies per usual care standards. SLB will not be provided via the study. Sublingual Buprenorphine (SUBOXONE, Zubsolv, or generic tablets): SLB is administered sublingually or buccally as a single daily dose. Medication should be prescribed in consideration of the frequency of visits. Provision of multiple refills is not advised in early treatment or without appropriate follow-up visits. After treatment induction and stabilization, the maintenance dose of SLB is generally in the range of 4mg/1mg buprenorphine/naloxone to 24mg/6mg buprenorphine/naloxone per day depending on the individual patient and clinical response.
The # of Participants Who Received Their Randomly Assigned Study Medication Prior to Release From Jail as Scheduled	21 Participants	26 Participants

Adverse Events

Buprenorphine Extended-Release

Serious events: 2 serious events

Other events: 5 other events

Deaths: 0 deaths

Sublingual Buprenorphine

Serious events: 0 serious events

Other events: 3 other events

Deaths: 0 deaths

Serious adverse events

Measure	Buprenorphine Extended-Release n=26 participants at risk XRB is a 300mg pre-mixed subcutaneous injectable formulation to be administered monthly. XRB is for abdominal subcutaneous injection only. Participants in the XRB treatment arm will be given 1 or more XRB injections prior to release from jail and one more at week 5 post-release, depending on their release date. Buprenorphine Extended Release: XRB is available in dosage strengths of 100 mg/0.5 mL and 300 mg/1.5 mL buprenorphine. Each dose is provided in a prefilled syringe with a 19 gauge 5/8-inch needle.	Sublingual Buprenorphine n=26 participants at risk SLB (SUBOXONE, Zubsolv, or generic tablets) is a daily sublingual film or tablet ranging from 8-24mg/day or equivalent (Zubsolv is dosed 5.7-17.1 mg/day). The film or tablet is placed under the tongue for 5 to 10 minutes until dissolved completely. Participants in the SLB treatment arm will be provided SLB daily by observed dosing in-jail (controlled substances are not self-administered in-jail) and and encouraged to continue SLB treatment in weekly, bi-weekly, or monthly quantities for unobserved, daily, self-administration through week 5. Patients may also elect to obtain SLB care free-of-charge from the Bellevue Hospital Center Addiction Medicine clinic or from non-NYU/Bellevue providers and pharmacies per usual care standards. SLB will not be provided via the study. Sublingual Buprenorphine (SUBOXONE, Zubsolv, or generic tablets): SLB is administered sublingually or buccally as a single daily dose. Medication should be prescribed in consideration of the frequency of visits. Provision of multiple refills is not advised in early treatment or without appropriate follow-up visits. After treatment induction and stabilization, the maintenance dose of SLB is generally in the range of 4mg/1mg buprenorphine/naloxone to 24mg/6mg buprenorphine/naloxone per day depending on the individual patient and clinical response.
Infections and infestations Foot Infection	3.8% 1/26 • Number of events 1 • 3 months	0.00% 0/26 • 3 months
Surgical and medical procedures Toe Amputation	3.8% 1/26 • Number of events 1 • 3 months	0.00% 0/26 • 3 months

Other adverse events

Measure	Buprenorphine Extended-Release n=26 participants at risk XRB is a 300mg pre-mixed subcutaneous injectable formulation to be administered monthly. XRB is for abdominal subcutaneous injection only. Participants in the XRB treatment arm will be given 1 or more XRB injections prior to release from jail and one more at week 5 post-release, depending on their release date. Buprenorphine Extended Release: XRB is available in dosage strengths of 100 mg/0.5 mL and 300 mg/1.5 mL buprenorphine. Each dose is provided in a prefilled syringe with a 19 gauge 5/8-inch needle.	Sublingual Buprenorphine n=26 participants at risk SLB (SUBOXONE, Zubsolv, or generic tablets) is a daily sublingual film or tablet ranging from 8-24mg/day or equivalent (Zubsolv is dosed 5.7-17.1 mg/day). The film or tablet is placed under the tongue for 5 to 10 minutes until dissolved completely. Participants in the SLB treatment arm will be provided SLB daily by observed dosing in-jail (controlled substances are not self-administered in-jail) and and encouraged to continue SLB treatment in weekly, bi-weekly, or monthly quantities for unobserved, daily, self-administration through week 5. Patients may also elect to obtain SLB care free-of-charge from the Bellevue Hospital Center Addiction Medicine clinic or from non-NYU/Bellevue providers and pharmacies per usual care standards. SLB will not be provided via the study. Sublingual Buprenorphine (SUBOXONE, Zubsolv, or generic tablets): SLB is administered sublingually or buccally as a single daily dose. Medication should be prescribed in consideration of the frequency of visits. Provision of multiple refills is not advised in early treatment or without appropriate follow-up visits. After treatment induction and stabilization, the maintenance dose of SLB is generally in the range of 4mg/1mg buprenorphine/naloxone to 24mg/6mg buprenorphine/naloxone per day depending on the individual patient and clinical response.
General disorders Stomach flu	0.00% 0/26 • 3 months	3.8% 1/26 • Number of events 1 • 3 months
Renal and urinary disorders Kidney Stones	3.8% 1/26 • Number of events 1 • 3 months	0.00% 0/26 • 3 months
General disorders Nausea/Fatigue	3.8% 1/26 • Number of events 1 • 3 months	0.00% 0/26 • 3 months
General disorders intoxication induction	0.00% 0/26 • 3 months	3.8% 1/26 • Number of events 1 • 3 months
Nervous system disorders Seizure	3.8% 1/26 • Number of events 1 • 3 months	0.00% 0/26 • 3 months
Infections and infestations Sinus infection	0.00% 0/26 • 3 months	3.8% 1/26 • Number of events 1 • 3 months
General disorders soreness at injection site	3.8% 1/26 • Number of events 1 • 3 months	0.00% 0/26 • 3 months
General disorders Pain in upper-left arm	3.8% 1/26 • Number of events 1 • 3 months	0.00% 0/26 • 3 months

Additional Information

Dr. Joshua Lee

NYU Langone

Phone: 646-501-3552

Email: Joshua.Lee@nyulangone.org

Results disclosure agreements

• Principal investigator is a sponsor employee
• Publication restrictions are in place