Multiple-Dose Study to Evaluate the Safety and Efficacy of IXT-m200

• Status: Not yet recruiting
• Trial end date: 2023-12-20
• Target enrollment: 0
• Participant gender: All

Summary

This Phase 2 study will evaluate the safety and efficacy of monthly intravenous doses of IXT-m200 in treatment-seeking individuals with methamphetamine (METH) use disorder. The hypothesis is that treatment with IXT-m200 will reduce the occurrence of stimulant-positive samples compared to placebo (following an initial grace period during which relapses may occur).

• Phase: Phase 2
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: InterveXion Therapeutics, LLC
• Collaborator: National Institute on Drug Abuse (NIDA)

Criteria

Eligible participants will:

1. Be at least 18 years of age at the time of study consent;

2. Meet Diagnostic and Statistical Manual of Mental Disorders (DSM)-5 criteria for Substance Use Disorder associated with methamphetamine;

3. Be treatment-seeking methamphetamine users with at least 1 methamphetamine or amphetamine positive specimen during the screening period;

4. Be able and willing to read, comprehend, and give Authorization for Use/Disclosure of Health Information (HIPAA) and informed consent;

5. Be willing to comply with study instructions and dosing, agree to make all appointments, and complete the entire course of the study;

6. Agree to use protocol-specified method(s) of birth control throughout study participation;

7. Agree to adhere to Lifestyle Considerations throughout study duration;

8. Have access to a smartphone or other device capable of supporting the study app.

Eligible participants will NOT:

1. Have current dependence, defined by DSM-5 criteria, on any psychoactive substance (i.e., opioids or benzodiazepines), other than methamphetamine or nicotine (any severity). Mild severity dependence on alcohol or marijuana is allowed;

2. Be currently taking certain other drugs and medications, including: "designer drugs" (e.g., 3,4-methylenedioxyMETH (MDMA, Ecstasy, Adam, XTC) and its N-dimethyl metabolite methylenedioxyamphetamine (MDA), anti-orexigenic drugs (including over-the-counter medications for weight loss), or be chronic users of phenethylamine compounds (e.g., phenylpropanolamine, ephedrine, pseudoephedrine, amphetamine, phentermine, phenmetrazine, methylphenidate, diethylpropion, and propylhexedrine);

3. Have a known contraindication or sensitivity to IXT-m200 based on known allergies to other monoclonal antibodies, any inactive ingredient of IXT-m200, or any other products required for the study procedures;

4. Have a history of severe allergy (rash, hives, breathing difficulty, etc) to any medications;

5. Have a history of allergic or environmental bronchial asthma within the past 3 years;

6. Have a current diagnosis of anorexia nervosa or bulimia disorder;

7. Have a history of unstable cardiovascular disease that is not adequately controlled at the time of eligibility determination;

8. Be mandated by the court to obtain treatment for methamphetamine-dependence where such mandate required the results of methamphetamine testing to be reported to the court;

9. Have positive drug screens for psychoactive substances (legal or nonlegal) other than METH during screening;

10. Be expected to fail to complete the study protocol due to probable incarceration or relocation from the clinic area, or any clinically significant mental or physical illness within a 1-year prior, that would impact compliance with trial requirements;

11. Have clinically significant laboratory values (outside of normal limits). The following specified ranges are allowable:

1. Liver function tests (total bilirubin, aspartate transaminase, alanine aminotransferase, and alkaline phosphatase) <3 times the upper limit of normal, and

2. Kidney function tests (creatinine and BUN) <2 times the upper limit of normal;

12. Be considered to be at imminent risk of suicide or have a history of a serious suicide attempt (defined as an attempt that results in or requires medical treatment) based on response to queries within eligibility screening about suicidal ideation and attempts;

13. Have an uncontrolled systemic disease or a medical condition that may increase the risk associated with study participation or administration of study treatment or that may interfere with the interpretation of study results;

14. Be currently participating or has participated within the last 30 days prior to the start of this study in a drug, device, or other interventional research study;

15. Be pregnant or lactating;

16. In the Investigator's or Sponsor's (or designee) opinion, be inappropriate for the study, including those believed to be attempting to enter the study primarily for financial gain.