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Opioid DependencePhase 2PAINNCT01967641

Prescription Opioid Abuse Among Pain Patients: Predictors of Relapse

A Phase 2 study testing buprenorphine/naloxone combination in people with Opioid Dependence, run by New York State Psychiatric Institute at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

In this study, we will assess opioid self-administration in a laboratory setting in persons with pain who have a history of opioid abuse. Participants diagnosed with mild to moderate pain will be admitted to hospital for 7 weeks and transitioned from their baseline prescription opioid to a standing daily dose of… Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Opioid Dependence
What is being tested?
buprenorphine/naloxone combination
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
51 participants
Where
1 siteUnited States
Study dates
Nov 2005to Jun 2011
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • DSM-IV criteria for opioid abuse and prescription opioid physical dependence
  • 18-65 years of age
  • Stable weight (<10% change in 3 months) and stable physical health
  • Chronic pain syndrome (e.g., osteoarthritic pain or chronic lower back pain with/without history of surgery) of moderate (4-7) average daily pain of 6+ months duration; opioid medication maintenance for 6+ months
  • Seeking treatment for chronic pain
  • Must be expected to achieve a good analgesic effect from buprenorphine

Who cannot join

  • DSM-IV untreated Axis I disorders (e.g. MDD, BAD, psychotic disorders, eating disorders) requiring treatment
  • Regular consumption of more than 500 mg caffeine daily
  • Primary pain diagnosis of neuropathic pain, malignant pain, or headache
  • History of allergy, adverse reaction, or sensitivity to opioids, including buprenorphine
  • Pregnancy, lactation, or history of having given birth or had abortion or miscarriage within the last six months, or unwillingness to use an effective method of birth control (e.g. condoms, birth control pills, abstinence)
  • Psychotropic medications which would potentially interfere with study procedures
Show all 18Show fewer
  • Inability to read or understand the self-report assessment forms unaided
  • Use of medications known to interfere with buprenorphine metabolism, such as disulfiram, neuroleptics, azole antifungals (e.g. ketoconazole), macrolide antibiotics (e.g. erythromycin), and HIV protease inhibitors (e.g. ritonavir, indivair, and saquinavir)
  • Methadone-dependent
  • Current heroin dependence
  • Current buprenorphine maintenance
  • History of failed treatment with buprenorphine maintenance for pain
  • Acute hepatitis with elevated liver function tests (i.e. AST and ALT > 3 times the upper limit of normal) or impaired renal function (creatinine > 1.2 )
  • Any medical condition that might interfere with the study or significantly increase the medical risks of study participation
  • Participant is currently receiving any investigational drug or has used any investigational drug within 30 days of study entry
  • History of significant cardiovascular disease, such as coronary artery disease or hypertension requiring more than two anti-hypertensive agents
  • History of insulin-dependent diabetes
  • Body mass index of <18.5 or > 35.0

Trial locations and contacts

1 site in 1 country.

United States1 site
  • SURC

    New York, New York, 10032

Other trials in United States

About this study

In this study, we will assess opioid self-administration in a laboratory setting in persons with pain who have a history of opioid abuse. Participants diagnosed with mild to moderate pain will be admitted to hospital for 7 weeks and transitioned from their baseline prescription opioid to a standing daily dose of Suboxone (buprenorphine/naloxone combination). During this maintenance period, participants will have the opportunity in a laboratory setting to self-administer oxycodone; subjective responses as well as analgesic, physiological and performance effects will be measured. In the second phase of this study, the same patients who participated in the inpatient phase will be followed on an outpatient basis while maintained on Suboxone for 12 weeks. . The hypotheses of this study are that (1) higher progressive ratio break-point values for oxycodone, higher subjective ratings of euphoria, and less pain relief will predict early relapse to opioid abuse; (2) the abuse liability measures will be more strongly correlated with relapse than the pain measures; (3) subjective ratings of euphoria will increase and of pain will decrease in an oxycodone dose-dependent manner (i.e. euphoria will increase and pain will decrease as dose increases); and (4) experimentally induced pain will decrease in an oxycodone dose-dependent manner.

Read the detailed description

All participants will be admitted to the GCRU, the SRU, or the CRR and maintained on sublingual Bup/Ntx. During the first week after admission, participants will be withdrawn from their prior opioid analgesic regimen and will be stabilized on one of three doses of buprenorphine/naloxone (2/0.5, 8/2, or 16/4 mg per day). Participants will be treated for emergent withdrawal symptoms with supplemental supplemental medications (clonidine, clonazepam, compazine, ketorolac tromethamine, hydroxyzine, ranitidine, ondansetron, zolpidem) until withdrawal symptoms have dissipated, based on self-report and observer ratings. Each buprenorphine dose will be administered in equal divided doses according to a QID dosing schedule, and each dose will be maintained for a two-week period (one week of stabilization followed by one week of laboratory testing). Thus, stabilization will occur during Weeks 1, 3, and 5; testing will occur in Weeks 2, 4, and 6. Participants may receive an unaccompanied pass of up to 72 hours during Weeks 3 and 5 to attend to family obligations. Participants will be informed that urine toxicology screens will be conducted upon their return to the hospital, and that testing positive for drugs other than the study medication may result in discharge from the study. The order of administration of these three doses will vary among subjects in a randomized manner. At the completion of laboratory testing in Week 6, participants will be stabilized on 16 mg of buprenorphine. This final week of stabilization ensures that (1) any acute effects of high-dose oxycodone administration in the laboratory have dissipated and do not affect opioid dependence level; and (2) participants have sufficient opportunity to stabilize on the dose of buprenorphine on which they will be maintained during the outpatient phase.

Participants whose pain is not adequately relieved by Suboxone (buprenorphine/naloxone) will we removed from the study by the investigators. A criterion for dropout during the inpatient phase will be: clear decline in functional status, such as sustained worsening of mobility or marked decline in level of activity. In the event that average daily pain level worsens from baseline by 30% or more (e.g. 6/10 to 9/10), a clinical evaluation will be performed to consider whether the participant should be removed from the protocol, or should be allowed to continue to participate. The clinical determination will include an assessment of whether pain has improved throughout the inpatient stay as a range of doses are tested.

During the subsequent outpatient phase medication will be dispensed on a weekly basis and will consist of (1) a standing maintenance dose of 16 mg Suboxone (buprenorphine/naloxone), and (2) doses of Suboxone to be taken on a prn basis for breakthrough pain (prn doses will not exceed 25% of the total daily standing dose). Patients will report to the Substance Use Research Center (SURC) twice per week for 12 weeks for clinical visits.

Being tested
buprenorphine/naloxone combination
Keywords
opioid dependence, opioid abuse, suboxone, prescription pain medications
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/naloxone combinationDrug

    Also called Suboxone

    Buprenorphine/naloxone (Bup/Nx; Suboxone sublingual tablets, Reckitt Benckiser) will be administered sublingually at daily doses of 2/0.5, 8/2 mg, and 16/4 mg, which are within the recommended dose range for treating both pain and opioid abuse. The total daily dose will be divided and administered on a QID dosing regimen (0.5/0.125, 2/0.5, and 4/1 mg QID at 0830, 1230, 1730, 2130). Each participant will be tested with all three doses in random order for two weeks at each dose (one week of stabilization followed by one week of testing). Following completion of the 7-week inpatient phase, participants will be maintained on 16/4 mg Bup/Nx.

Study groups in NCT01967641
Study groupRoleWhat they receive
buprenorphine/naloxone combinationExperimentalBuprenorphine/naloxone (Bup/Nx; Suboxone sublingual tablets, Reckitt Benckiser) will be administered sublingually at daily doses of 2/0.5, 8/2 mg, and 16/4 mg, which are within the recommended dose range for treating both pain and opioid abuse. The total daily dose will be divided and administered on a QID dosing regimen (0.5/0.125, 2/0.5, and 4/1 mg QID at 0830, 1230, 1730, 2130). Each participant will be tested with all three doses in random order for two weeks at each dose (one week of stabilization followed by one week of testing). Following completion of the 7-week inpatient phase, participants will be followed at the Substance Use Research Center (SURC) and maintained on 16/4 mg Bup/Nx.
Receives: Drug: buprenorphine/naloxone combination

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants Retained in Study

    Retention was number of participants retained at study end (Week 19).

    Measured: week 19

Secondary outcomes (2)
  1. Number of Participants Abstinent From Opioids

    Relapse was number of participants with opioid-negative urine toxicology in last week of study participation.

    Measured: at week 19 or length of study participation

  2. Pain Measurement

    The primary pain measure was the Pain Assessment and Documentation Tool (PADT). Total score ranging from 0-11 reported. Higher score considered indicative of more pain. Lower score is indicative of less pain.

    Measured: assessed twice weekly during course of 19 weeks or length of participation, only screening and last assessment reported.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Oct 2013 (estimated)
  2. Study startNov 2005
  3. Primary completionJun 2011
  4. Study completionJun 2011

Resources

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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
51 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01967641
Sponsor's protocol ID
#6269R
Other IDs
DA020448-05
Acronym
PAIN
Status last verified
Apr 2019
First submitted
18 Oct 2013
Last updated
24 Apr 2019
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing buprenorphine/naloxone combination in people with Opioid Dependence, run by New York State Psychiatric Institute 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 6 inclusion and 18 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: finished, as of the sponsor's last update on 24 Apr 2019. 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 15 Jun 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Number of Participants Retained in Study (time frame: week 19). 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 24 Apr 2019.

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