Opioid-Related DisordersNCT00134875
Assessing Abuse Potential of Parenteral Buprenorphine/Naloxone in Non-Dependent Opioid Abusers
A study testing Buprenorphine/naloxone in people with Opioid-Related Disorders, run by National Institute of Allergy and Infectious Diseases (NIAID) at 1 site in United States.
Trial summary
Buprenorphine, a treatment for opioid dependence, can be mixed with another drug, naloxone, to limit abuse potential. Parenteral administration (intravenous or intramuscular injection) of buprenorphine/naloxone causes withdrawal symptoms in opioid dependent individuals. Read more about this study
- Who is it for?
- Ages 18 to 55 yearsHealthy volunteers can take part
- Conditions the study is for
- Opioid-Related Disorders
- What is being tested?
- Buprenorphine/naloxone
- How many people
- 9 participants
- Where
- 1 siteUnited States
- Study dates
- Dec 2000to Dec 2017
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 55 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Non-dependent opioid abuser
- Actively abusing opioids by injection
Who cannot join
- Opioid dependence
- Signs or symptoms of opioid withdrawal, once admitted to residential unit
Trial locations and contacts
1 site in 1 country.
United States1 site
Johns Hopkins University (BPRU) Bayview Campus
Baltimore, Maryland, 21224 6823
About this study
Official title: Abuse Potential of Parenteral Buprenorphine/Naloxone in Non-Dependent Opioid Abusers
Buprenorphine, a treatment for opioid dependence, can be mixed with another drug, naloxone, to limit abuse potential. Parenteral administration (intravenous or intramuscular injection) of buprenorphine/naloxone causes withdrawal symptoms in opioid dependent individuals. However, naloxone does not cause withdrawal symptoms in non-dependent opioid abusers. This study will investigate whether naloxone decreases the opioid agonist effect from injected buprenorphine, hence decreasing the abuse potential of buprenorphine/naloxone, in non-dependent opioid abusers.
Read the detailed description
Naloxone has been combined with buprenorphine to decrease the parenteral abuse potential of buprenorphine in opioid dependent individuals through the mechanism of naloxone-precipitated withdrawal. While naloxone will not precipitate withdrawal in individuals who are not physically dependent on opioids, it is possible naloxone might attenuate buprenorphine's agonist effects, especially if administered parenterally. The purpose of this study is to assess the effect of sublingual (SL) and intramuscular (IM) buprenorphine and buprenorphine/naloxone in non-dependent opioid abusers.
Participants will stay on a research ward and will undergo challenge sessions twice per week. The following conditions will be tested: placebo; IM hydromorphone (2 and 4 mg; an opioid agonist positive control condition); SL buprenorphine (4, 8, and 16 mg); IM buprenorphine (4, 8, and 16 mg); SL buprenorphine/naloxone(4/1, 8/2, and 16/4 mg); and IM buprenorphine/naloxone (4/1, 8/2, and 16/4 mg). During challenge sessions, physiological status will be recorded continuously and tasks assessing psychomotor, subjective, and objective status will be performed repeatedly.
- Conditions
- Opioid-Related Disorders
- Being tested
- Buprenorphine/naloxone
- Keywords
- opioid dependence
- Medical subject headings
- Opioid-Related Disorders
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Buprenorphine/naloxoneDrug
Acute doses of buprenorphine/naloxone in each experimental test session. Doses delivered by either sublingual or parenteral routes, and are: 4/1, 8/2, 16/4 mg.
What is being measured
The primary outcome is the main question the study is designed to answer.
Opioid agonist effects
Measured: 3.5 hours
Physiologic measures
Measured: 3.5 hours
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Aug 2005 (estimated)
- Study startDec 2000
- Primary completionDec 2002
- Study completionDec 2017 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Opioid-Related DisordersStudies of the same condition, open and under way.
- More trials run by National Institute of Allergy and Infectious Diseases (NIAID)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Care provider
- Enrolment
- 9 participants (actual)
Sponsor and investigators
- Sponsor type
- US National Institutes of Health
- Investigators
- Eric C. Strain, M.D., Principal investigator, Johns Hopkins University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00134875
- Sponsor's protocol ID
- NIDA-08045-3
- Other IDs
- R01-08045-3, DPMC
- Status last verified
- Oct 2008
- First submitted
- 23 Aug 2005
- Last updated
- 12 Jan 2017
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 12 Jan 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Abuse Potential of Parenteral Buprenorphine/Naloxone in Non-Dependent Opioid Abusers
- ClinicalTrials.gov ID
- NCT00134875
- Acronym / sponsor ID
- NIDA-08045-3
- Conditions
- Opioid-Related Disorders
- Keywords
- opioid dependence
- Study type
- Interventional
- Recruitment status
- Terminated
- Enrolment
- 9 participants (actual)
- Lead sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)US National Institutes of Health
- Study start
- Dec 2000
- Primary completion
- Dec 2002 (actual)
- Study completion
- Dec 2017 (estimated)
- First posted
- 25 Aug 2005 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Buprenorphine, a treatment for opioid dependence, can be mixed with another drug, naloxone, to limit abuse potential. Parenteral administration (intravenous or intramuscular injection) of buprenorphine/naloxone causes withdrawal symptoms in opioid dependent individuals. However, naloxone does not cause withdrawal symptoms in non-dependent opioid abusers. This study will investigate whether naloxone decreases the opioid agonist effect from injected buprenorphine, hence decreasing the abuse potential of buprenorphine/naloxone, in non-dependent opioid abusers.
Detailed description
Naloxone has been combined with buprenorphine to decrease the parenteral abuse potential of buprenorphine in opioid dependent individuals through the mechanism of naloxone-precipitated withdrawal. While naloxone will not precipitate withdrawal in individuals who are not physically dependent on opioids, it is possible naloxone might attenuate buprenorphine's agonist effects, especially if administered parenterally. The purpose of this study is to assess the effect of sublingual (SL) and intramuscular (IM) buprenorphine and buprenorphine/naloxone in non-dependent opioid abusers.
Participants will stay on a research ward and will undergo challenge sessions twice per week. The following conditions will be tested: placebo; IM hydromorphone (2 and 4 mg; an opioid agonist positive control condition); SL buprenorphine (4, 8, and 16 mg); IM buprenorphine (4, 8, and 16 mg); SL buprenorphine/naloxone(4/1, 8/2, and 16/4 mg); and IM buprenorphine/naloxone (4/1, 8/2, and 16/4 mg). During challenge sessions, physiological status will be recorded continuously and tasks assessing psychomotor, subjective, and objective status will be performed repeatedly.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, care provider)
Who may qualify
- Ages
- 18 to 55 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (2 listed)
- Non-dependent opioid abuser
- Actively abusing opioids by injection
Key exclusion criteria (2 listed)
- Opioid dependence
- Signs or symptoms of opioid withdrawal, once admitted to residential unit
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Buprenorphine/naloxoneAcute doses of buprenorphine/naloxone in each experimental test session. Doses delivered by either sublingual or parenteral routes, and are: 4/1, 8/2, 16/4 mg. | Drug | – |
Primary outcome
Opioid agonist effects
Time frame: 3.5 hours
Physiologic measures
Time frame: 3.5 hours
Results and safety
The study was stopped early. Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Jan 2017.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Eric C. Strain, M.D. principal investigator
Johns Hopkins University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Buprenorphine/naloxone in people with Opioid-Related Disorders, run by National Institute of Allergy and Infectious Diseases (NIAID) at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: stopped early, as of the sponsor's last update on 12 Jan 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study was stopped early. Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Opioid agonist effects (time frame: 3.5 hours). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Jan 2017.