ClinicalTrials.gg
CompletedNCT03278886PETER PAINUpdated Aug 24, 2020Results posted

St. PETERsburg Pain and Alcohol Intervention With Naltrexone and Nalmefene

A Phase 1/2 interventional study of Low dose naltrexone and Nalmefene in HIV Infection, Alcohol Use and Pain, sponsored by Boston Medical Center. Completed at 1 site in Russian Federation. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-08-24.

Sponsored by Boston Medical Center · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
11
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study is a randomized controlled trial (RCT) to assess the feasibility, tolerability, and safety of using opioid receptor antagonists (naltrexone and nalmefene) to treat pain among HIV-infected persons with heavy alcohol use and chronic pain.

Read the detailed description

Pain is a common co-morbidity for HIV-infected patients. Prevalence studies suggest that, on average, half of all HIV-infected persons suffer pain. Chronic pain can lead to heavy alcohol use among HIV-infected persons, which may in turn be a barrier to treatment/control of HIV and contribute to spread of HIV. Thus there is an urgent need to address pain among persons with HIV. Opioid receptor antagonists such as naltrexone and nalmefene, which are licensed for treatment of alcohol use disorders, show promise as being effective and safe treatments for chronic pain among persons with HIV. This study will pilot test novel pharmacotherapies (opioid receptor antagonists) to improve chronic pain among HIV-infected heavy drinkers. The specific aims of the research is to assess the feasibility, tolerability and safety of using opioid receptor antagonists (low-dose naltrexone and nalmefene) to treat pain among HIV-infected persons with heavy alcohol use and chronic pain.

02

Conditions studied

  • HIV Infection
  • Alcohol Use
  • Pain

Keywords

  • Alcohol Use
  • Pain
  • HIV
  • Low-dose naltrexone
  • Nalmefene
03

In context

HIV Infections

4,734 studies on the registry are indexed under HIV Infections; 244 are open to participants now.

This study's enrollment of 11 is below the median of 80 across 3,489 interventional studies indexed under HIV Infections.

Browse HIV Infections studies →

Lead sponsor

Boston Medical Center is the lead sponsor of 323 studies on the registry; 33 are open to participants now.

Of its 34 completed or terminated interventional studies of FDA-regulated products, 28 (82%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 18 years or older
  • -positive
  • Chronic pain (present ≥3 mo) of moderate to severe intensity
  • Heavy drinking past year (Based on NIAAA criteria: > 14 standard drinks per week/ > 4 drinks in a day for men; > 7 drinks in the past week/ > 3 drinks in a day for women)
  • If female, negative pregnancy test and willing to use adequate
  • Provision of contact information for 2 contacts to assist with follow-up
  • Stable address within 100 kilometers of St. Petersburg
  • Possession of a telephone (home or cell)
  • Able and willing to comply with all study protocols and procedures

Exclusion criteria

Exclusion Criteria:

  • Not fluent in Russian
  • Cognitive impairment resulting in inability to provide based on research assessor (RA) assessment
  • Known active TB or current febrile illness
  • Breastfeeding
  • Uncontrolled psychiatric illness (such as active psychosis) (i.e., answered yes to any of the following: past three month active hallucinations; mental health symptoms prompting a visit to the ED or hospital)
  • History of to naltrexone, nalmefene, or naloxone
  • Current use (past week) of illicit or prescribed opiates as documented by either self-report or positive urine drug test
  • Unwilling to abstain from opiates during the treatment period
  • Current use of neuroleptics
  • History of seizure disorder
  • Known liver failure
  • /AST levels >5x normal
  • History of Raynaud's Disease
  • Planned surgeries in the next three months
  • Enrolled in another and/or substance use medication intervention study
  • Taking naltrexone in the past 30 days
  • Taking nalmefene in the past 30 days
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
11 participants (actual)

Study arms

  • Experimental
    Low dose naltrexone

    Participants randomized to this group will receive low dose naltrexone (4.5 mg) for 8 weeks.

    Drug: Low dose naltrexone

  • Experimental
    Nalmefene

    Participants randomized to this group will receive nalmefene (18 mg) for 8 weeks.

    Drug: Nalmefene

Interventions

  • 4.5 mg of low dose naltrexone taken once daily for 8 weeks

  • 18 mg of nalmefene taken once daily for 8 weeks

06

What researchers measure

Primary outcomes

  1. Medication Tolerability Measured Via a 0-100 Visual Analog Scale

    Medication tolerability will be measured via a 0-100 visual analog scale. Participants will be asked to indicate on a scale of 0-100, how well they have tolerated the study medication with 0 anchored as "cannot tolerate at all" and 100 as "tolerate perfectly well." Higher numbers will be indicative of higher tolerability of the medication.

    Time frame: Primary endpoint at 8 weeks

Secondary outcomes

  1. Change in Alcohol Use Defined as a Change in the Mean Number of Grams of Pure Ethanol Consumed Per Day From Baseline to 8 Weeks

    Measured via 30 Day Alcohol Use Timeline Follow Back Method

    Time frame: Baseline, 8 weeks

  2. Treatment Discontinuation Defined as Patient Self-report of Stopping Medication Anytime During the Treatment Period

    Measured via one question asking participants if they had discontinued medication since their last visit. Assessed at 4 and 8 week study visits.

    Time frame: 4 weeks, 8 weeks

  3. Adherence to Medication Defined as Self-report of Percentage of Study Medication Taken in the Past Two Weeks

    Measured by participants' drawing a line on a a Visual Analog Scale, which ranges from 0 to 100. Higher numbers indicate higher adherence to study medication.

    Time frame: Endpoint at 8 weeks

  4. Number of Participants With Adherence Assessed Via Riboflavin in the Urine Confirming Adherence

    Measured through visual inspection of the urine for the presence or absence of riboflavin using ultraviolet (UV) light at the long wave setting (33 mm) in a room with low ambient light.

    Time frame: Endpoint at 8 weeks

  5. Reported Side Effects Using a Symptom Checklist, Plus an Open-ended Question

    Measured via a 16-item symptom checklist with the option for participants to report any experienced side effects not on the checklist. Side effect severity is rated by trained research assessors. The checklist is asked at 2, 4, 6, and 8-week study visits.

    Time frame: 2 weeks, 4 weeks, 6 weeks, 8 weeks

  6. Medication Satisfaction Defined as a Score From 0-100 Measured Via the Treatment Satisfaction Questionnaire for Medication (TSQM), With Higher Scores Corresponding to Higher Treatment Satisfaction.

    Measured via using the 14-item Treatment Satisfaction Questionnaire, which consists of 14 items that result in four domains: Effectiveness, Side Effects, Convenience and Global Satisfaction. Higher scores indicate greater satisfaction with medication. Assessed at 4 and 8 week study visits.

    Time frame: 4 weeks, 8 weeks

  7. Severe Hepatotoxicity Defined as AST/ALT >10X the Level of Normal

    Aminotransferase levels (AST/ALT) are tested to look for severe hepatotoxicity defined as AST/ALT \> 10 times the level of normal.

    Time frame: Endpoint at 8 weeks

07

Results

Posted Aug 3, 2020

Participant flow

Participant flow — Overall Study
MilestoneLow Dose NaltrexoneNalmefene
Started83
Completed82
Not completed01

Outcome measures

PrimaryMedication Tolerability Measured Via a 0-100 Visual Analog Scale

Medication tolerability will be measured via a 0-100 visual analog scale. Participants will be asked to indicate on a scale of 0-100, how well they have tolerated the study medication with 0 anchored as "cannot tolerate at all" and 100 as "tolerate perfectly well." Higher numbers will be indicative of higher tolerability of the medication.

Time frame:
Primary endpoint at 8 weeks
Reported as:
Mean · score on a scale
Medication Tolerability Measured Via a 0-100 Visual Analog Scale
score on a scaleLow Dose NaltrexoneNalmefene
Medication Tolerability Measured Via a 0-100 Visual Analog Scale90.7 ± 22.4NA ± NA
SecondaryChange in Alcohol Use Defined as a Change in the Mean Number of Grams of Pure Ethanol Consumed Per Day From Baseline to 8 Weeks

Measured via 30 Day Alcohol Use Timeline Follow Back Method

Time frame:
Baseline, 8 weeks
Reported as:
Mean · grams of ethanol
Change in Alcohol Use Defined as a Change in the Mean Number of Grams of Pure Ethanol Consumed Per Day From Baseline to 8 Weeks
grams of ethanolLow Dose NaltrexoneNalmefene
Change in Alcohol Use Defined as a Change in the Mean Number of Grams of Pure Ethanol Consumed Per Day From Baseline to 8 Weeks5.5 ± 10.1-6.83 ± 9.7
SecondaryTreatment Discontinuation Defined as Patient Self-report of Stopping Medication Anytime During the Treatment Period

Measured via one question asking participants if they had discontinued medication since their last visit. Assessed at 4 and 8 week study visits.

Time frame:
4 weeks, 8 weeks
Reported as:
Number · treatment discontinuations
Treatment Discontinuation Defined as Patient Self-report of Stopping Medication Anytime During the Treatment Period
treatment discontinuationsLow Dose NaltrexoneNalmefene
4-Weeks11
8-Weeks12
SecondaryAdherence to Medication Defined as Self-report of Percentage of Study Medication Taken in the Past Two Weeks

Measured by participants' drawing a line on a a Visual Analog Scale, which ranges from 0 to 100. Higher numbers indicate higher adherence to study medication.

Time frame:
Endpoint at 8 weeks
Reported as:
Mean · score on a scale
Adherence to Medication Defined as Self-report of Percentage of Study Medication Taken in the Past Two Weeks
score on a scaleLow Dose NaltrexoneNalmefene
Adherence to Medication Defined as Self-report of Percentage of Study Medication Taken in the Past Two Weeks87.5 ± 35.40 ± 0
SecondaryNumber of Participants With Adherence Assessed Via Riboflavin in the Urine Confirming Adherence

Measured through visual inspection of the urine for the presence or absence of riboflavin using ultraviolet (UV) light at the long wave setting (33 mm) in a room with low ambient light.

Time frame:
Endpoint at 8 weeks
Reported as:
Number · participants
Number of Participants With Adherence Assessed Via Riboflavin in the Urine Confirming Adherence
participantsLow Dose NaltrexoneNalmefene
Number of Participants With Adherence Assessed Via Riboflavin in the Urine Confirming Adherence10
SecondaryReported Side Effects Using a Symptom Checklist, Plus an Open-ended Question

Measured via a 16-item symptom checklist with the option for participants to report any experienced side effects not on the checklist. Side effect severity is rated by trained research assessors. The checklist is asked at 2, 4, 6, and 8-week study visits.

Time frame:
2 weeks, 4 weeks, 6 weeks, 8 weeks
Reported as:
Mean · number of side effects
Reported Side Effects Using a Symptom Checklist, Plus an Open-ended Question
number of side effectsLow Dose NaltrexoneNalmefene
2-Weeks1.5 ± 1.64.5 ± 6.4
4-Weeks1.3 ± 1.21.5 ± 2.1
6-Weeks0.9 ± 1.01.5 ± 2.1
8-Weeks0 ± 00 ± 0
SecondaryMedication Satisfaction Defined as a Score From 0-100 Measured Via the Treatment Satisfaction Questionnaire for Medication (TSQM), With Higher Scores Corresponding to Higher Treatment Satisfaction.

Measured via using the 14-item Treatment Satisfaction Questionnaire, which consists of 14 items that result in four domains: Effectiveness, Side Effects, Convenience and Global Satisfaction. Higher scores indicate greater satisfaction with medication. Assessed at 4 and 8 week study visits.

Time frame:
4 weeks, 8 weeks
Reported as:
Mean · score on a scale
Medication Satisfaction Defined as a Score From 0-100 Measured Via the Treatment Satisfaction Questionnaire for Medication (TSQM), With Higher Scores Corresponding to Higher Treatment Satisfaction.
score on a scaleLow Dose NaltrexoneNalmefene
4-Weeks47.3 ± 24.43.6 ± 5.1
8-Weeks47.3 ± 21.93.6 ± 5.1
SecondarySevere Hepatotoxicity Defined as AST/ALT >10X the Level of Normal

Aminotransferase levels (AST/ALT) are tested to look for severe hepatotoxicity defined as AST/ALT \> 10 times the level of normal.

Time frame:
Endpoint at 8 weeks
Reported as:
Number · participants
Severe Hepatotoxicity Defined as AST/ALT >10X the Level of Normal
participantsLow Dose NaltrexoneNalmefene
Severe Hepatotoxicity Defined as AST/ALT >10X the Level of Normal00

Adverse events

Collected over Adverse event data were collected over the course of the 8-week treatment period.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Low Dose Naltrexone0/8 (0%)1/8 (12.5%)3/8 (37.5%)
Nalmefene0/3 (0%)0/3 (0%)3/3 (100%)
Most frequent serious events
Most frequent serious events
EventLow Dose NaltrexoneNalmefene
Body injury during fightInjury, poisoning and procedural complications1/80/3
Most frequent other events
Showing 10 of 13
Most frequent other events
EventLow Dose NaltrexoneNalmefene
WeaknessGeneral disorders0/82/3
NauseaGastrointestinal disorders0/82/3
DizzinessNervous system disorders0/82/3
AnxietyPsychiatric disorders0/82/3
AgitationGeneral disorders0/81/3
IrritabilityGeneral disorders0/81/3
TremorNervous system disorders0/81/3
Abnormal dreams/nightmaresPsychiatric disorders0/81/3
ConfusionPsychiatric disorders0/81/3
Sleep problemsPsychiatric disorders0/81/3

Baseline characteristics

Age, Continuous
Age, Continuous(years)Low Dose NaltrexoneNalmefeneTotal
Mean38.3 ± 7.4635.7 ± 1.0937.8 ± 7.02
Sex: Female, Male
Sex: Female, Male(Participants)Low Dose NaltrexoneNalmefeneTotal
Female516
Male325
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)Low Dose NaltrexoneNalmefeneTotal
Count of participants——0
Region of Enrollment
Region of Enrollment(Participants)Low Dose NaltrexoneNalmefeneTotal
Russia8311
Education (9 grades or more)
Education (9 grades or more)(Participants)Low Dose NaltrexoneNalmefeneTotal
Count of participants8311
Married/Living with partner/In long-term relationship
Married/Living with partner/In long-term relationship(Participants)Low Dose NaltrexoneNalmefeneTotal
Count of participants538
At risk drinking based on NIAAA criteria
At risk drinking based on NIAAA criteria(Participants)Low Dose NaltrexoneNalmefeneTotal
Count of participants213
Lifetime opioid use
Lifetime opioid use(Participants)Low Dose NaltrexoneNalmefeneTotal
Count of participants538

5 further baseline measures are reported on the registry.

08

Study locations

1 site
  • First St. Petersburg Pavlov State Medical University
    St. Petersburg, 197022, Russian Federation
09

References and documents

Publications

  • Bendiks S, Cheng DM, Blokhina E, Vetrova M, Verbitskaya E, Gnatienko N, Bryant K, Krupitsky E, Samet JH, Tsui JI. Pilot study of tolerability and safety of opioid receptor antagonists as novel therapies for chronic pain among persons living with HIV with past year heavy drinking: a randomized controlled trial. AIDS Care. 2023 Aug;35(8):1191-1200. doi: 10.1080/09540121.2021.1896663. Epub 2021 Mar 7. PubMed 33682527 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — All data from the study will be placed into the URBAN ARCH repository.

Data sharing details ↗ · www.urbanarch.org

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jul 2018 to primary completion in Dec 2018, 5 months.

Results were first posted in Aug 2020, 1 year 7 months after primary completion.

Of 35 non-industry phase 1/2 interventional studies under HIV Infections, half reached primary completion within 55 months of starting (the median), counting those still running; a quarter within 29 and three quarters within 73. This study's 5 months is below that.

Counting every sponsor, half of 42 studies reached it within 47 months; a quarter within 22 and three quarters within 73.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 5, 2017
First posted
Sep 12, 2017
StartActual
Jul 3, 2018
Primary completionActual
Dec 19, 2018
CompletionActual
Dec 19, 2018
Results first posted
Aug 3, 2020
Last update
Aug 24, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 24, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03278886
Responsible party
Sponsor
First posted
Sep 12, 2017
Start date
Jul 3, 2018
Primary completion
Dec 19, 2018
Completion
Dec 19, 2018
Results posted
Aug 3, 2020
Last update
Aug 24, 2020

Study contacts

Jeffrey H. Samet, MD, MA, MPH
principal investigator · Boston University/Boston Medical Center

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drugs tested here: Naltrexone · Nalmefene

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