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Opioid DependencyPhase 3PRO-809NCT00772785

Study of Probuphine in Patients With Opioid Dependence

A Phase 3 study testing Probuphine (buprenorphine implant) in people with Opioid Dependency, run by Titan Pharmaceuticals at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Buprenorphine (BPN) is an approved treatment for opioid dependence; however, in taking oral tablets, patients experience withdrawal and cravings when the variable BPN levels in the blood are low. Probuphine (buprenorphine implant) is an implant placed just beneath the skin that contains BPN. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Opioid Dependency
What is being tested?
Probuphine (buprenorphine implant)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
16 participants
Where
1 siteUnited States
Study dates
Sep 2008to Feb 2009
Phase
Phase 3
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 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients must meet the following eligibility criteria:
  • Expected to complete 24 weeks of treatment in PRO-807 or PRO-808
  • Voluntarily provide written informed consent prior to the conduct of any study-related procedures
  • Deemed appropriate for entry into this re-treatment study by the Investigator
  • Females of childbearing potential and fertile males must use a reliable means of contraception

Who cannot join

  • Patients are not eligible for enrollment if any of the following criteria are met:
  • Presence of aspartate aminotransferase (AST) levels ≥ 3 X upper limit of normal and/or alanine aminotransferase (ALT) levels ≥ 3 X upper limit of normal and/or total bilirubin ≥ 1.5 X upper limit of normal and/or creatinine ≥ 1.5 X upper limit of normal, measured at the time of the Week 20 Visit for the previous trial (PRO-807 or PRO-808), or any time less than 5 weeks prior to the Implant Visit.
  • Current diagnosis of chronic pain requiring opioids for treatment
  • Pregnant or lactating females
  • Current use of agents metabolized through cytochrome P450 3A4 (CYP 3A4) such as azole antifungals (e.g., ketoconazole), macrolide antibiotics (e.g., erythromycin), and protease inhibitors (e.g., ritonavir, indinavir, and saquinavir)
  • Current history of coagulopathy and anti-coagulant therapy (such as warfarin)
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  • Current use of benzodiazepines other than physician prescribed use
  • Significant medical or psychiatric symptoms, cognitive impairment, or other factors which in the opinion of the Investigator, would preclude compliance with the protocol, patient safety, adequate cooperation in the study, or obtaining informed consent
  • Concurrent medical conditions (such as severe respiratory insufficiency) that may prevent the patient from safely participating in study; and/or any pending legal action that could prohibit participation and/or compliance in the study

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Scientific Clinical Research, Inc.

    North Miami, Florida, 33161

Other trials in United States

About this study

Official title: An Open-label, Multi-center Extension Study of Probuphine in Patients With Opioid Dependence

Buprenorphine (BPN) is an approved treatment for opioid dependence; however, in taking oral tablets, patients experience withdrawal and cravings when the variable BPN levels in the blood are low. Probuphine (buprenorphine implant) is an implant placed just beneath the skin that contains BPN. It is designed to provide 6 months of stable BPN blood levels. This study will test the safety and efficacy of Probuphine in the treatment of patients with opioid dependence. Patients who have completed at least 24 weeks of treatment in the Open-Label, Multi-Center Study of Probuphine in Patients with Opioid Dependence (PRO-807 Study), will be re-treated with Probuphine over an additional 24 weeks.

Read the detailed description

This is a 6-month, open-label, multi-center extension study. It is estimated that approximately 200 patients will be enrolled at approximately 25 sites in the United States (US). Following completion of either the PRO-807(NCT00630201) or PRO-808 studies, eligible patients will be implanted with Probuphine implants in the opposite arm for the PRO-809 study. Safety, BPN plasma levels, and efficacy measures will be collected during the 24-week treatment period.

Being tested
Probuphine (buprenorphine implant)
Keywords
opioid dependence, opioid addiction, buprenorphine, methadone, heroin, implant, opioid withdrawal, opioid pain medication, suboxone
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.

  • Probuphine (buprenorphine implant)Drug

    Implantable formulation of buprenorphine made of buprenorphine HCl/ethylene vinyl acetate, considered a drug. (4 implants 6-month duration)

Study groups in NCT00772785
Study groupRoleWhat they receive
ProbuphineExperimentalbuprenorphine implant
Receives: Drug: Probuphine (buprenorphine implant)

What is being measured

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

  1. Number of adverse events

    Measured: 24 WEEKS

Secondary outcomes (1)
  1. Plasma buprenorphine concentration

    Measured: 24 WEEKS

Timeline

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

  1. First posted15 Oct 2008 (estimated)
  2. Study startSep 2008
  3. Primary completionFeb 2009
  4. Study completionFeb 2009

Why it stopped: This study was terminated for reasons not related to efficacy or safety

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 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00772785
Sponsor's protocol ID
PRO-809
Acronym
PRO-809
Status last verified
Jun 2017
First submitted
9 Oct 2008
Last updated
31 Dec 2018
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Probuphine (buprenorphine implant) in people with Opioid Dependency, run by Titan Pharmaceuticals 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 5 inclusion and 9 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 31 Dec 2018. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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

Are results available for this study?

The study was stopped early (reason given: This study was terminated for reasons not related to efficacy or safety). 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?

Number of adverse events (time frame: 24 WEEKS). 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 31 Dec 2018.

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