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Opioid Use DisorderPhase 1NCT03810495

The O'Neil Long Acting Naltrexone Implant (OLANI) Pharmacokinetic (PK)/Safety Study in Healthy Volunteers

A Phase 1 study testing naltrexone implant in people with Opioid Use Disorder, run by Go Medical Industries Pty Ltd 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

This study will examine the pharmacokinetic profile and safety of the O'Neil Long Acting Naltrexone Implant (OLANI) overtime in healthy volunteers. All participants will be treated in an open label manner. No randomization will occur. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Opioid Use Disorder
What is being tested?
naltrexone implant
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteUnited States
Study dates
11 Apr 2019to 22 Mar 2021
Phase
Phase 1
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 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Men or women between the ages of 18 and 55 years old (inclusive)
  • Without The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM 5) - Substance Related Disorders classification; in sustained remission is not exclusionary
  • Able and willing to comply with the requirements of the protocol
  • Able and willing to provide written informed consent
  • Willing to undergo a minor surgical procedure under local anesthetic to allow for investigational drug administration in the subcutaneous tissue
  • BMI inclusive of 18.5 to 30.0
  • Have an initial weight between 45.3 and 81.6 kilograms (inclusive)

Who cannot join

  • Positive urine drug screen (UDS) at screening for illicit substances.
  • Is currently on naltrexone medication.
  • Has had a naltrexone implant in the past 24 months.
  • Has received treatment with an extended naltrexone product (e.g. Vivitrol) in the past 12 months.
  • Has a condition which requires treatment with opioid based medication.
  • Has a known hypersensitivity to naltrexone.
Show all 20Show fewer
  • Has a known hypersensitivity to poly-lactic based materials e.g. biodegradable sutures, surgical implants or previous biodegradable implants.
  • Has a known hypersensitivity to local anesthesia.
  • Is prone to skin rashes, irritation or has a skin condition such as recurrent eczema that is likely to impact the implant site area, or as determined by the evaluating physician.
  • Demonstrates any abnormal skin tissue in the proposed implantation area.
  • Is pregnant or planning to be. Women need to have negative blood pregnancy test at screening. Women need to agree to practice dual contraceptives.
  • Participant is breastfeeding or planning to be.
  • Has a current significant neurological (including cognitive and psychiatric disorders), hepatic, renal, endocrine, cardiovascular, gastrointestinal, pulmonary, hematological or metabolic disease unless currently controlled and stable with protocol-allowed medication 30 days prior to proposed investigational product administration.
  • Any clinically important abnormal finding as determined by medical history, physical examination, ECG or clinical laboratory tests.
  • Any additional condition(s) that in the investigator's opinion would prohibit the participant from completing the study or would not be in the best interest of the participant.
  • Alanine aminotransferase (ALT) or aspartate transaminase (AST) > 3 times the upper end of the laboratory normal range.
  • Any methadone use 14 days prior to screening, and up to Study Day 0.
  • Current DSM-5 diagnosis of schizophrenia, bipolar, anxiety, or depressive disorder, confirmed by The Mini International Neuropsychiatric Interview (MINI) diagnostic interview assessment, or currently treated with medications for anxiety or depression. Past history (in remission DSM-5 classification) of anxiety or depression is not exclusionary.
  • Any elevated risk for suicide measured using the Columbia Suicide Severity Rating Scale (C-SSRS), endorsing any of the items in the past month (C-SSRS, Lifetime)
  • Is participating or intending to participate in any other clinical trial during the duration of this study.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Columbia University Medical Center

    New York, New York, 10032

Other trials in United States

About this study

Official title: OLANI PK/Safety Study in Healthy Volunteers

This study will examine the pharmacokinetic profile and safety of the O'Neil Long Acting Naltrexone Implant (OLANI) overtime in healthy volunteers. All participants will be treated in an open label manner. No randomization will occur. It is hypothesized that the OLANI will provide sustained therapeutic doses of naltrexone (NTX) for periods up to 6 months via a single subcutaneous application of 2 OLANIs.

Read the detailed description

Naltrexone (NTX) is a nonspecific pure opioid antagonist with a high affinity for the µ-opioid receptor. It blocks the effects of opioids by competitive binding at opiate receptors. NTX is used primarily in the management of opiate and alcohol dependence. It is available in the United States (US) as 2 formulations; a once daily oral formulation (Revia) and a once monthly intramuscular injection (Vivitrol). While NTX is a potent antagonist and efficiently blocks the effects of exogenous opiates such as heroin, the success of NTX for the treatment of opiate dependence has been limited by poor patient compliance. Therefore, the development of a sustained release NTX formulation (in excess of 1 month) would be of great benefit for the treatment of opioid use disorder.

Being tested
naltrexone implant
Keywords
naltrexone, opioids, opioid use disorder, OLANI implant
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.

  • naltrexone implantDrug

    Also called OLANI, O'Neil Long Acting Naltrexone Implant

    1.8 g implant containing 60% naltrexone

Study groups in NCT03810495
Study groupRoleWhat they receive
OLANI (naltrexone implant)Experimental2 OLANI containing 60% naltrexone (1.8 g total) administered one time subcutaneously
Receives: Drug: naltrexone implant

What is being measured

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

  1. Percentage of Participants That Maintain MEC

    Percentage of participants who maintain naltrexone (NTX) blood levels of ≥1.33 ng/mL for ≥180 days

    Measured: up to 540 days or until NTX blood levels become undetectable

Secondary outcomes (8)
  1. Median Cmax of Naltrexone

    Single-dose pharmacokinetic (PK) measurement of the plasma naltrexone concentration (Cmax) after dosing on Day 1

    Measured: pre-dose, at 3, 6, and 12 hours (± 60 minutes) after dosing; 24 and 48 hours (± 2 hours) after dosing; day 4 (± 1 day), day 8 (± 2 days); days 14, 21, 28, 35, 42, 49 and 56 (± 3 days); then every 30 days (± 10 days) up to 540 days

  2. Tmax of Naltrexone

    Single-dose PK measurement of the time to reach the maximum (Tmax) naltrexone concentration after dosing on Day 1

    Measured: pre-dose, at 3, 6, and 12 hours (± 60 minutes) after dosing; 24 and 48 hours (± 2 hours) after dosing; day 4 (± 1 day), day 8 (± 2 days); days 14, 21, 28, 35, 42, 49 and 56 (± 3 days); then every 30 days (± 10 days) up to 540 days

  3. AUC of Naltrexone

    Single-dose PK measurement of the area under the curve (AUC) for naltrexone after dosing on Day 1

    Measured: pre-dose, at 3, 6, and 12 hours (± 60 minutes) after dosing; 24 and 48 hours (± 2 hours) after dosing; day 4 (± 1 day), day 8 (± 2 days); days 14, 21, 28, 35, 42, 49 and 56 (± 3 days); then every 30 days (± 10 days) up to 540 days

  4. Median Cmax of 6β-naltrexol

    Single-dose PK measurement of the peak plasma 6β-naltrexol concentration after dosing on Day 1

    Measured: pre-dose, at 3, 6, and 12 hours (± 60 minutes) after dosing; 24 and 48 hours (± 2 hours) after dosing; day 4 (± 1 day), day 8 (± 2 days); days 14, 21, 28, 35, 42, 49 and 56 (± 3 days); then every 30 days (± 10 days) up to 540 days

  5. Median Tmax of 6β-naltrexol

    Single-dose PK measurement of the time to reach the maximum 6β-naltrexol concentration after dosing on Day 1

    Measured: pre-dose, at 3, 6, and 12 hours (± 60 minutes) after dosing; 24 and 48 hours (± 2 hours) after dosing; day 4 (± 1 day), day 8 (± 2 days); days 14, 21, 28, 35, 42, 49 and 56 (± 3 days); then every 30 days (± 10 days) up to 540 days

  6. Time>Minimum Effective Concentration

    Time (T) naltrexone remains above the minimum effective concentration (MEC) of 1.33

    Measured: pre-dose, at 3, 6, and 12 hours (± 60 minutes) after dosing; 24 and 48 hours (± 2 hours) after dosing; day 4 (± 1 day), day 8 (± 2 days); days 14, 21, 28, 35, 42, 49 and 56 (± 3 days); then every 30 days (± 10 days) up to 540 days

  7. AUC of 6β-naltrexol

    Single-dose PK measurement of the AUC for 6β-naltrexol concentration after dosing on Day 1

    Measured: pre-dose, at 3, 6, and 12 hours (± 60 minutes) after dosing; 24 and 48 hours (± 2 hours) after dosing; day 4 (± 1 day), day 8 (± 2 days); days 14, 21, 28, 35, 42, 49 and 56 (± 3 days); then every 30 days (± 10 days) up to 540 days

  8. Incidence of Adverse Events (AEs)

    Incidence and Severity of AEs

    Measured: Up to 540 days or until NTX blood levels become undetectable

Timeline

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

  1. First posted18 Jan 2019
  2. Study start11 Apr 2019
  3. Primary completion18 Mar 2021
  4. Study completion22 Mar 2021

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 1
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03810495
Sponsor's protocol ID
GM0017
Other IDs
UG3DA047720, 240358
Status last verified
Oct 2024
First submitted
17 Jan 2019
Last updated
12 Nov 2024
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing naltrexone implant in people with Opioid Use Disorder, run by Go Medical Industries Pty Ltd 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 7 inclusion and 20 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 12 Nov 2024. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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 1 Aug 2022). 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?

Percentage of Participants That Maintain MEC (time frame: up to 540 days or until NTX blood levels become undetectable). 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 Nov 2024.

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