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Methamphetamine AddictionPhase 1NCT00506935

Assessment of GVG for the Treatment of Methamphetamine Dependence

A Phase 1 study testing GVG in people with Methamphetamine Addiction, run by Baylor College of Medicine 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

The purpose of this study is to find out if GVG can reduce drug use and determine safety and effects of GVG when used together with methamphetamine. This study involves staying in the hospital for 21 days. Read more about this study

Who is it for?
Ages 18 to 55 years
Conditions the study is for
Methamphetamine Addiction
What is being tested?
GVG
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
17 participants
Where
1 siteUnited States
Study dates
Jul 2006to Jun 2008
Phase
Phase 1
Are there results?
None posted in the registry

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
  • No healthy volunteers
  • Adult

Who may be able to join

  • Be English-speaking volunteers who are not seeking treatment at the time of the study;
  • Be between 18-55 years of age;
  • Meet DSM-IV TR criteria for MA abuse or dependence;
  • Have a self-reported history of using MA by the smoked or IV route, for at least 2 years.
  • Have vital signs as follows: resting pulse between 50 and 90 bpm, blood pressures between 85-150mm Hg systolic and 45-90mm Hg diastolic; this criterion must be met within 2 days of admission.
  • Have hematology and chemistry laboratory tests that are within normal (+/- 10%) limits with the following exceptions: a) liver function tests (total bilirubin, ALT, AST, and alkaline phosphatase) < 3 x the upper limit of normal, and b) kidney function tests (creatinine and BUN) < 2 x the upper limit of normal;
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  • Have a baseline ECG that demonstrates normal sinus rhythm, normal conduction, and no clinically significant arrhythmias;
  • Be able to fully cooperate with visual field testing to the point that a valid test is obtained during screening/baseline.
  • In the judgment of the study ophthalmologist, have visual fields within normal limits for age during the screening/baseline measurements;
  • Have acceptable ERG results for initiation of treatment with GVG (in the judgment of Drs. Nusinowitz and Newton, with ophthalmologic consultation as needed) , including having a value of the 30 Hz Flicker a-b amplitude as measured during the screening/baseline electroretinogram evaluations of 52 μV or above;
  • Have a medical history and brief physical examination demonstrating no clinically significant contraindications for study participation, in the judgment of the admitting physician and the principal investigator.

Who cannot join

  • Have any history or evidence suggestive of seizure disorder or brain injury;
  • Have any previous medically adverse reaction to MA, including loss of consciousness, chest pain, or epileptic seizure;
  • Have neurological or psychiatric disorders, such as:
  • psychosis, bipolar illness or major depression as assessed by the MINI;
  • organic brain disease or dementia assessed by clinical interview;
  • history of any psychiatric disorder which would require ongoing treatment or which would make study compliance difficult;
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  • history of suicide attempts within the past three months assessed by the MINI and/or current suicidal ideation/plan as assessed by the MINI;
  • Have evidence of clinically significant heart disease or hypertension, as determined by the PI;
  • Have a family history in first-degree relatives of early cardiovascular morbidity or mortality, as determined by the PI;
  • Have any ophthalmologic disorder (e.g., glaucoma, cataracts, optic nerve disease, fixation problems, etc.) which, in the judgment of the study ophthalmologist, would:
  • make it difficult to obtain valid ophthalmologic perimetry, or electroretinography (ERG) assessments, or
  • increase the risks of visual side effects associated with VGB.
  • Have evidence of untreated or unstable medical illness including: neuroendocrine, autoimmune, renal, hepatic, or active infectious disease;
  • Have HIV and are currently symptomatic, have a diagnosis of AIDS, or are receiving antiretroviral medication;
  • Be pregnant or nursing. Other females must either be unable to conceive (i.e., surgically sterilized, sterile, or post-menopausal) or be using a reliable form of contraception (e.g., abstinence, birth control pills, intrauterine device, condoms, or spermicide). All females must provide negative pregnancy urine tests before study entry, upon hospital admission, and at the end of study participation;
  • Have any history of asthma, chronic coughing and wheezing, or other respiratory illnesses;
  • Currently use alpha or beta agonists, theophylline, or other sympathomimetics;
  • Have any other illness, condition, or use of medications, which in the opinion of the PI and/or the admitting physician would preclude safe and/or successful completion of the study.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • UCLA

    Los Angeles, California, 90024

Other trials in United States

About this study

Official title: Phase 1 Study of Vigabatrin (GVG) for Methamphetamine Dependence

The purpose of this study is to find out if GVG can reduce drug use and determine safety and effects of GVG when used together with methamphetamine. This study involves staying in the hospital for 21 days. Participants will receive either placebo or GVG, and a limited amount if methamphetamine will be injected on some study days. This study will enroll people that use methamphetamine. Participants will be compensated.

Being tested
GVG, placebo
Keywords
methamphetamine, GVG, vigabatrin, stimulant

What participants receive

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

  • GVGDrug

    Also called vigabatrin

    5 grams GVG

  • placeboDrug

    placebo

Study groups in NCT00506935
Study groupRoleWhat they receive
1ExperimentalGVG
Receives: Drug: GVG
2Placebo comparatorplacebo
Receives: Drug: placebo

Timeline

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

  1. First posted25 Jul 2007 (estimated)
  2. Study startJul 2006
  3. Primary completionApr 2008
  4. Study completionJun 2008

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
Other
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
17 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00506935
Sponsor's protocol ID
#05-10-091-01
Status last verified
Jul 2017
First submitted
24 Jul 2007
Last updated
13 Jul 2017
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing GVG in people with Methamphetamine Addiction, run by Baylor College of Medicine 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 11 inclusion and 18 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 13 Jul 2017. 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. 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 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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.

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 13 Jul 2017.

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