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Cocaine DependencePhase 2NCT05562349

Clavulanic Acid for the Treatment of Cocaine Use Disorder

A Phase 2 study testing Clavulanic Acid Only Product in people with Cocaine Dependence, run by Temple University at 2 sites in United States.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

A dose escalation study to assess the efficacy and safety of Clavulanic Acid (CLAV) vs. placebo (PBO) for the treatment of cocaine use disorder (CUD) Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Cocaine Dependence
What is being tested?
Clavulanic Acid Only Product
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
65 participants
Where
2 sitesUnited States
Study dates
3 May 2023to Jul 2024
Phase
Phase 2
Are there results?
Not yet: the study is under way

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

Who may be able to join

  • Be able to verbalize understanding of consent form, able to provide written informed consent, and verbalize willingness to complete study procedures
  • Be male or female adult volunteers ages 18-70 inclusive.
  • Have a Diagnostic and Statistical Manual (DSM-V) diagnosis of cocaine use disorder, moderate to severe in early remission with a duration of regular (weekly or more) cocaine (either snorted, smoked or injected) for at least one year.
  • Have a history and brief physical examination that demonstrate no clinically significant contraindication for participating in the study, and/ or significant or unstable medical or psychiatric illness.

Who cannot join

  • Meets DSM-V criteria for dependence on any substance other than cocaine and mild to moderate alcohol or marijuana (except nicotine or caffeine), determined by the structured clinical interview for DSM-V.
  • Allergy to clavulanic acid, penicillin, or any beta-lactam drug.
  • Meets current or lifetime DSM-V criteria for schizophrenia or any psychotic disorder or organic mental disorder. Subject meets current DSM-V diagnosis of any other clinically significant psychiatric disorder that will interfere with study participation.
  • Severe physical or medical illnesses such as AIDS or active hepatitis.
  • If female, tests positive on a pregnancy test, is contemplating pregnancy in the next 6 months, is nursing, or is not using an effective contraceptive method (if relevant)

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • MUSC

    Charleston, South Carolina, 29403

  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104

Other trials in United States

About this study

Official title: A Randomized, Double-Blind, Placebo-Controlled Phase 2a Pilot Study to Assess the Efficacy and Safety of Clavulanic Acid vs. Placebo for the Treatment of Cocaine Use Disorder

A dose escalation study to assess the efficacy and safety of Clavulanic Acid (CLAV) vs. placebo (PBO) for the treatment of cocaine use disorder (CUD)

Read the detailed description

This pilot study is indicated for treatment of moderate to severe cocaine use disorder. It is a randomized, placebo-controlled, parallel group, multi-center pilot study to compare the efficacy of 500-750mg/day clavulanic acid vs. placebo in addition to weekly medication management therapy. Subjective, cognitive, and adverse effect assessments, blood pressure and pulse will be performed 1-3 times weekly.

Being tested
Clavulanic Acid Only Product, Placebo
Medical subject headings
Cocaine-Related Disorders

What participants receive

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

  • Clavulanic Acid Only ProductDrug

    Also called Potassium clavulanate

    Drug will be given in 250mg capsules

  • PlaceboDrug

    Also called microcrystalline cellulose

    Capsule with no active medication - identical to drug capsule

Study groups in NCT05562349
Study groupRoleWhat they receive
Clavulanic AcidExperimentalParticipants may receive 500 mg of CLAV at baseline. Subjects who are using cocaine once per week or more and who can tolerate 500 mg/day for 4 weeks, will have a dose escalation to 750 mg/day. If tolerated, 750mg/day will be maintained for 8 weeks, otherwise the dose will decrease to 500mg/day.
Receives: Drug: Clavulanic Acid Only Product
PlaceboPlacebo comparatorParticipants may receive placebo and serve as a control group. They will be blinded to their condition and will have a "dose" escalation at the same time as the experimental group, and be given additional placebo pills to match the number given to the experimental group.
Receives: Drug: Placebo

What is being measured

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

  1. Changes in relapse to cocaine use in CLAV group vs PBO group

    Cocaine-free weeks are measured by self-report using Timeline Follow Back (TLFB) and confirmed by urine drug screen.

    Measured: Last 3 weeks of 12 week study

Secondary outcomes (5)
  1. Changes in weekly abstinence in the CLAV group vs. PBO group

    Abstinence from cocaine by week will be measured by self report and urine drug screen

    Measured: Self reported cocaine use and Urine Drug Screen (UDS) will be administered 1-3 times per week and at follow-up

  2. Changes in weekly cocaine use will be greater in the CLAV group vs. PBO group

    Cocaine-free visits are measured by self-report using TLFB confirmed by urine drug screen

    Measured: TLFB and UDS will be administered 1-3 times per week and at follow-up

  3. Changes in subject health and function, quality-of-life, will be greater in the CLAV group vs. PBO group

    Medical Outcomes Study Quality of Life Scale short form 36, will determine whether CLAV treatment is associated with improved QOL

    Measured: Baseline, week 4, week 8, week 12

  4. Clavulanic acid 500-750 mg/day for 12 weeks will be safe and reasonably well tolerated

    Safety and tolerability as assessed by the rates of occurrence of adverse events (AEs) and the severity

    Measured: 1-3 times per week and at follow-up

  5. Cocaine craving will be decreased more by CLAV vs. PBO

    Changes in craving will be greater in the CLAV group compared with PBO group, as measured by the cocaine craving questionnaire (CCQ), adjusted for baseline and sex

    Measured: 1-3 times per week and at follow-up

Timeline

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

  1. First posted30 Sep 2022
  2. Study start3 May 2023
  3. Primary completionJul 2024 (estimated)
  4. Study completionJul 2024 (estimated)

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
Randomised
Intervention model
Parallel groups
Model description
Randomized, double-blind, placebo-controlled, parallel group study
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
65 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05562349
Sponsor's protocol ID
30076
Status last verified
Apr 2024
First submitted
15 Sep 2022
Last updated
2 May 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Kim J, John J, Langford D, Walker E, Ward S, Rawls SM. Clavulanic acid enhances glutamate transporter subtype I (GLT-1) expression and decreases reinforcing efficacy of cocaine in mice. Amino Acids. 2016 Mar;48(3):689-696. doi: 10.1007/s00726-015-2117-8. Epub 2015 Nov 5.

    PubMed 26543027

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Clavulanic Acid Only Product in people with Cocaine Dependence, run by Temple University at 2 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 4 inclusion and 5 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: under way, not looking for participants, as of the sponsor's last update on 2 May 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 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. Some participants in this study may receive a placebo. 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?

This study is still under way. Results are not available in the source record yet.

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?

Changes in relapse to cocaine use in CLAV group vs PBO group (time frame: Last 3 weeks of 12 week study). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05562349, which also lists 1 linked publication.

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 2 May 2024.

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