NCT04411914

Brief Summary

A dose-escalation study to determine the optimum dose of Clavulanic Acid (CLAV) for effects on craving and efficacy.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
13

participants targeted

Target at below P25 for phase_1

Timeline
Completed

Started Sep 2020

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 20, 2020

Completed
13 days until next milestone

First Posted

Study publicly available on registry

June 2, 2020

Completed
3 months until next milestone

Study Start

First participant enrolled

September 1, 2020

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 23, 2021

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2022

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

June 22, 2023

Completed
Last Updated

June 22, 2023

Status Verified

June 1, 2023

Enrollment Period

1.2 years

First QC Date

May 20, 2020

Results QC Date

January 20, 2023

Last Update Submit

June 15, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Brain Glutamate Concentration in the Anterior Cingulate Cortex (ACC) in Subjects With Cocaine Use Disorder (CUD) Treated With Escalating Doses of Clavulanate (CLAV)

    Brain glutamate concentration in the ACC (based on Magnetic Resonance Spectroscopy (MRS)) will be correlated with cocaine craving (measured by Cocaine Craving Questionnaire (CCQ)) in subjects receiving escalating doses of CLAV for 10 days. Measurement will be made at baseline and Day 10 of CLAV (1000 mg/day) in subjects with cocaine use disorder.

    ACC glutamate and CCQ will be measured and correlated on Day 10 of treatment with CLAV compared with baseline.

Secondary Outcomes (4)

  • Changes in Resting State Network Connectivity From Baseline

    Assessment was done at the end of Period 1, 2 and 3 detailed above. Data from the end of Period 3 (Day 10, 1000mg CLAV) are reported.

  • Craving

    CCQ-45 questionnaires were completed daily during the study. Data from day 10 adjusted for baseline score are reported.

  • Change in Brain Glutamine From Baseline

    Brain glutamine will be analyzed at baseline (Day 1 prior to CLAV or PBO dose) and at Day 10 day (having completed Periods 1, 2 and 3 (CLAV 500mg/day for 3 days, 750 mg/day for 3 days and 1000 mg/day for 4 days).

  • Number of Participants With Treatment-related Adverse Events (AEs)

    1-24 days (during and up to 2 weeks after study dosing period)

Study Arms (2)

Clavulanic Acid

EXPERIMENTAL

Participants will receive 10 days of CLAV-- Period 1: 500 mg/day for days 1-3; Period 2: 750 mg/day for days 4-6; Period 3: 1000 mg/day for days 7-10.

Drug: Clavulanic Acid

Placebo

PLACEBO COMPARATOR

Participants will receive 10 days of placebo and will have a "dose" escalation at the same time as the experimental group. They will be given additional placebo pills to match the number given to the experimental group (i.e. 2 PBO capsules/day for days 1-3, 3 PBO capsules/day days 4-6 and 4 PBO capsules/day for days 7-10).

Other: Placebo

Interventions

Drug will be given in 250mg capsules.

Clavulanic Acid
PlaceboOTHER

Placebo

Also known as: microcrystalline cellulose
Placebo

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Be able to verbalize understanding of consent form
  • Be male or female adult volunteers ages 18-65 inclusive.
  • Have a Diagnostic and Statistical Manual-5 (DSM-5) diagnosis of cocaine use disorder, moderate to severe in early remission
  • Have a Body Mass Index (BMI) of 17.5 to 39.9 kg/m2; and a total body weight of at least 45 kg (99 lbs.)
  • 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.

You may not qualify if:

  • Have a current DSM-5 substance use disorder, mild, moderate, or severe, on any drug of abuse other than nicotine, caffeine, and cocaine use disorder in early remission verified by Urine Drug Screen (UDS). Alcohol use disorder and marijuana use disorder, mild without withdrawal symptoms, will be permitted.
  • Have any previous medically adverse reaction to CLAV, Augmentin, penicillin, Ticarcillin, cephalosporin, or any beta-lactam drug.
  • Have any illness, condition, and use of medications, in the opinion of the principal investigator, sub-investigators which would preclude safe and/or successful completion of the study.
  • Report having human immunodeficiency virus (HIV) infection or test positive for HIV during screening
  • Be pregnant (females).
  • Unable to tolerate MRI scan for duration of 60 minutes for physical or psychological reasons.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Temple University Episcopal Hospital

Philadelphia, Pennsylvania, 19125, United States

Location

Related Publications (2)

  • 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.

    PMID: 26543027BACKGROUND
  • Callans LS, Philogene-Khalid H, Jagannathan K, Cunningham R, Yu D, Lu X, Walters MI, Morrison MF. Clavulanic Acid Decreases Cocaine Cue Reactivity in Addiction-Related Brain Areas, a Randomized fMRI Pilot Study. Psychopharmacol Bull. 2024 Apr 4;54(2):8-14. doi: 10.64719/pb.4485.

MeSH Terms

Conditions

Cocaine-Related Disorders

Interventions

Clavulanic Acidmicrocrystalline cellulose

Condition Hierarchy (Ancestors)

Substance-Related DisordersChemically-Induced DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Clavulanic Acidsbeta-LactamsLactamsAmidesOrganic ChemicalsHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic Compounds

Results Point of Contact

Title
Mary Morrison, MD, MS
Organization
Temple University

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Randomized, double-blind, placebo-controlled, parallel group inpatient study
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 20, 2020

First Posted

June 2, 2020

Study Start

September 1, 2020

Primary Completion

November 23, 2021

Study Completion

March 31, 2022

Last Updated

June 22, 2023

Results First Posted

June 22, 2023

Record last verified: 2023-06

Data Sharing

IPD Sharing
Will not share

Locations