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Opioid WithdrawalPhase 3NU LEAFNCT02363998

Open-Label, Safety Study of Lofexidine

A Phase 3 study testing Lofexidine in people with Opioid Withdrawal, run by USWM, LLC (dba US WorldMeds) at 18 sites 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

The purpose of this Phase 3 open-label treatment study is to evaluate the safety and effectiveness of lofexidine at a clinically relevant dose to alleviate symptoms of acute withdrawal from any opioid, including methadone and buprenorphine. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Opioid Withdrawal
What is being tested?
Lofexidine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
286 participants
Where
18 sitesUnited States
Study dates
Feb 2015to Oct 2015
Phase
Phase 3
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or Female at least 18 years of age
  • Must be able to verbalize understanding of the consent form, able to provide written informed consent, and verbalize willingness to complete study procedures
  • Must have current dependence, according to the Mini International Neuropsychiatric Interview (M.I.N.I.), on any opioid (including methadone and buprenorphine maintenance treatment)
  • Must be seeking treatment for partial or total withdrawal from current opioid and expected, as determined by the Principal Investigator, to benefit from lofexidine treatment for at least 7 days at clinically relevant doses. This can include a variety of clinical situations where opioid withdrawal illness is likely to occur including abrupt and total withdrawal (including from methadone and buprenorphine), agonist-assisted total withdrawal, dose reduction of maintenance treatment (e.g., methadone, buprenorphine) and transition from an opioid agonist to naltrexone or buprenorphine maintenance
  • Must have Urine toxicology screen result of positive for opioid(s) relevant to the subject's withdrawal treatment goal
  • If female and of childbearing potential, subject must agree to use of one of the following methods of birth control including oral contraceptives, patch, barrier (diaphragm, sponge or condom) plus spermicidal preparations, intrauterine contraceptive system, levonorgestrel implant, medroxyprogesterone acetate contraceptive injection, complete abstinence from sexual intercourse, hormonal vaginal contraceptive ring or surgical sterilization or partner sterile (with documented proof)

Who cannot join

  • Female subject who is pregnant or lactating
  • History of very serious medical illness not under control including, but not limited to, active self-reported acquired immune deficiency syndrome (AIDS) or self-reported human immunodeficiency virus (HIV) positive status and taking retroviral medications currently or within the past 4 weeks and/or having an unstable psychiatric condition. These conditions will be determined at Screening by medical history, physical examination, 12 lead electrocardiogram (duplicate), clinical laboratory tests for infectious diseases, and a tuberculin test
  • Current dependence (based on the M.I.N.I.) on any psychoactive substance (excluding caffeine, nicotine, and the subject's current opioid-dependence agent, which can include methadone and buprenorphine, for example, in agonist-maintained subjects) that requires detoxification or dose reduction as part of the pre-defined individual subject withdrawal treatment goal
  • Have participated in an investigational drug study within the past 30 days
  • Have a history of lofexidine exposure in a prior clinical trial or otherwise
  • Have an abnormal cardiovascular exam at screening
  • Any subject that requires tricyclic antidepressants, which may reduce the efficacy of imidazoline derivatives and/or beta-receptor blockers, to avoid the risk of excessive bradycardia

Trial locations and contacts

18 sites in 1 country.

18 sites in 1 country

United States18 sites
  • Study site

    Atlanta, Georgia, 30331

  • Study site

    Dayton, Ohio, 45417

  • Study site

    Flowood, Mississippi, 39232

  • Study site

    Fort Lauderdale, Florida, 33308

  • Study site

    Hollywood, Florida, 33021

  • Study site

    Lake Charles, Louisiana, 70629

  • Study site

    Little Rock, Arkansas, 72211

  • Study site

    New York, New York, 10019

  • Study site

    North Charleston, South Carolina, 29405

  • Study site

    Orem, Utah, 84058

  • Study site

    Orlando, Florida, 32801

  • Study site

    Pittsburgh, Pennsylvania, 15213

  • Study site

    Portland, Oregon, 97214

  • Study site

    Rockville, Maryland, 20853

  • Study site

    San Diego, California, 92103

  • Study site

    Springdale, Arkansas, 72764

  • Study site

    St Louis, Missouri, 63141

  • Study site

    Winfield, Illinois, 60190

Other trials in United States

About this study

Official title: A Phase 3, Open-Label, Safety Study of Lofexidine

The purpose of this Phase 3 open-label treatment study is to evaluate the safety and effectiveness of lofexidine at a clinically relevant dose to alleviate symptoms of acute withdrawal from any opioid, including methadone and buprenorphine. This study will take place in a variety of clinical scenarios, both in-clinic and outpatient settings.

Read the detailed description

Eligible subjects (person seeking treatment for partial or total opioid withdrawal) enrolled in this study are required to take lofexidine for a minimum of 7 days.

Being tested
Lofexidine
Keywords
detoxification, agonist taper, methadone step down, buprenorphine step down, opioid withdrawal syndrome

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • LofexidineDrug

    Also called Lofexidine hydrochloride (HCL)

    All enrolled subjects will take lofexidine orally for 7 days, starting on Day 1 at a dose of 3.2 mg per day (0.8 mg QID), with lowering of the dose allowed to 2.4 mg daily (0.6 mg QID) if required for tolerability based on the subject's individual treatment goal and response per clinical judgment of the Principal Investigator.

Study groups in NCT02363998
Study groupRoleWhat they receive
Open Label LofexidineOtherDuring this open-label study, subjects will be given the option to receive lofexidine tablets for 7 days and up to 14 days if requested.
Receives: Drug: Lofexidine

What is being measured

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

  1. Overall Occurrence of Treatment Emergent Adverse Events (TEAEs)

    Subjects with at least 1 TEAE occurring on days 1-14.

    Measured: Days 1-14

  2. Overall Occurrence of Serious Treatment Emergent Adverse Events (Serious TEAEs)

    Measured: Days 1-14

  3. Overall Treatment Emergent Adverse Events (TEAEs) by Severity

    Measured: Days 1-14

  4. Occurrence of Per Protocol Adverse Events of Special Interest (AESI)

    Measured: Day 1 to Day 14

  5. Occurrence of Adverse Events (AEs) Not Related to Opioid Withdrawal

    Measured: Day 1 to Day 14

  6. Mean Observed and Change From Screening in Seated Systolic Blood Pressure (mmHg): Vital Sign

    Baseline vital signs were defined by the assessment value at screening when subjects were not experiencing opioid withdrawal to reduce the potential for variability from the effects of different states of withdrawal that may have been present before dosing on Day 1.

    Overall screening values are captured in the column "Inpatient: Pre 8AM"; these values were recorded at various times for each participant during the screening visit, not necessarily at 8AM.

    Serial vital sign assessments required for inpatient visits on days 1-3, either inpatient or outpatient for days 4-7, and outpatient only for days 8-14.

    Day 14 only required pre-dose vital signs measurement. Day 1 Change, Pre 8AM was prior to the first dose.

    Measured: Day 1 to Day 14

  7. Mean Observed and Change From Screening in Standing Systolic Blood Pressure (mmHg): Vital Sign

    Baseline vital signs were defined by the assessment value at screening when subjects were not experiencing opioid withdrawal to reduce the potential for variability from the effects of different states of withdrawal that may have been present before dosing on Day 1.

    Overall screening values are captured in the column "Inpatient: Pre 8AM"; these values were recorded at various times for each participant during the screening visit, not necessarily at 8AM.

    Serial vital sign assessments required for inpatient visits on days 1-3, either inpatient or outpatient for days 4-7, and outpatient only for days 8-14.

    Day 14 only required pre-dose vital signs measurement. Day 1 Change, Pre 8AM was prior to the first dose.

    Measured: Day 1 to Day 14

  8. Mean Observed and Change From Screening in Seated Diastolic Blood Pressure (mmHg): Vital Sign

    Baseline vital signs were defined by the assessment value at screening when subjects were not experiencing opioid withdrawal to reduce the potential for variability from the effects of different states of withdrawal that may have been present before dosing on Day 1.

    Overall screening values are captured in the column "Inpatient: Pre 8AM"; these values were recorded at various times for each participant during the screening visit, not necessarily at 8AM.

    Serial vital sign assessments required for inpatient visits on days 1-3, either inpatient or outpatient for days 4-7, and outpatient only for days 8-14.

    Day 14 only required pre-dose vital signs measurement. Day 1 Change, Pre 8AM was prior to the first dose.

    Measured: Day 1 to Day 14

  9. Mean Observed and Change From Screening in Standing Diastolic Blood Pressure (mmHg): Vital Sign

    Baseline vital signs were defined by the assessment value at screening when subjects were not experiencing opioid withdrawal to reduce the potential for variability from the effects of different states of withdrawal that may have been present before dosing on Day 1.

    Overall screening values are captured in the column "Inpatient: Pre 8AM"; these values were recorded at various times for each participant during the screening visit, not necessarily at 8AM.

    Serial vital sign assessments required for inpatient visits on days 1-3, either inpatient or outpatient for days 4-7, and outpatient only for days 8-14.

    Day 14 only required pre-dose vital signs measurement. Day 1 Change, Pre 8AM was prior to the first dose.

    Measured: Day 1 to Day 14

  10. Mean Observed and Change From Screening in Seated Pulse (Bpm): Vital Signs

    Baseline vital signs were defined by the assessment value at screening when subjects were not experiencing opioid withdrawal to reduce the potential for variability from the effects of different states of withdrawal that may have been present before dosing on Day 1.

    Overall screening values are captured in the column "Inpatient: Pre 8AM"; these values were recorded at various times for each participant during the screening visit, not necessarily at 8AM.

    Serial vital sign assessments required for inpatient visits on days 1-3, either inpatient or outpatient for days 4-7, and outpatient only for days 8-14.

    Day 14 only required pre-dose vital signs measurement. Day 1 Change, Pre 8AM was prior to the first dose.

    Measured: Day 1 to Day 14

  11. Mean Observed and Change From Screening in Standing Pulse (Bpm): Vital Signs

    Baseline vital signs were defined by the assessment value at screening when subjects were not experiencing opioid withdrawal to reduce the potential for variability from the effects of different states of withdrawal that may have been present before dosing on Day 1.

    Overall screening values are captured in the column "Inpatient: Pre 8AM"; these values were recorded at various times for each participant during the screening visit, not necessarily at 8AM.

    Serial vital sign assessments required for inpatient visits on days 1-3, either inpatient or outpatient for days 4-7, and outpatient only for days 8-14.

    Day 14 only required pre-dose vital signs measurement. Day 1 Change, Pre 8AM was prior to the first dose.

    Measured: Day 1 to Day 14

  12. Columbia Suicide Severity Rating Scale Questionnaire (C-SSRS): Suicidal Ideation and Behavior Numbers

    The C-SSRS measures both suicidal ideation and suicidal behavior and will be completed to assess lifetime suicidality before first dose of study drug, 3.5 hours after first daily dose of study drug on in-clinic treatment days, and then once a day before dosing during outpatient treatment days. C-SSRS will also be assessed at end of study/discontinuation.

    Measured: Day 1 to Day 14

  13. Clinical Laboratory Test Change From Baseline: Hematology

    Hematology Parameters with Shifts in ≥3% of Subjects from Screening to End of Study

    Measured: Day 1 to Day 14

  14. Clinical Laboratory Test Change From Baseline: Chemistry

    Chemistry Parameters with Shifts in ≥3% of Subjects from Screening to End of Study

    Measured: Day 1 to Day 14

  15. Clinical Laboratory Test Change From Baseline: Urinalysis

    Measured: Day 1 to Day 7

  16. Safety Electrocardiograms (ECG) Evaluation Shift From Baseline to Post Dose and End of Study

    For each 12-lead ECG obtained during the study, the investigator made an overall interpretation of the ECG (normal, abnormal NCS, and abnormal CS). Shifts from normal at baseline to abnormal NCS and abnormal CS at the end of study predose and postdose assessments were summarized.

    Measured: Day 1 and Day 14

Timeline

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

  1. First posted16 Feb 2015 (estimated)
  2. Study startFeb 2015
  3. Primary completionSep 2015
  4. Study completionOct 2015

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
286 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02363998
Sponsor's protocol ID
USWM-LX1-3003-2
Other IDs
1U01DA033276-01A1
Acronym
NU LEAF
Status last verified
Mar 2022
First submitted
9 Feb 2015
Last updated
22 Mar 2022
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Lofexidine in people with Opioid Withdrawal, run by USWM, LLC (dba US WorldMeds) at 18 sites 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 7 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 22 Mar 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 18 sites 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?

Yes. Results are posted in the registry (first posted 26 Apr 2021). 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?

Overall Occurrence of Treatment Emergent Adverse Events (TEAEs) (time frame: Days 1-14). The study lists 16 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 22 Mar 2022.

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