Cocaine Use, Cocaine Intoxication, Cocaine Toxicity, Cocaine Abuse, Cocaine Adverse Reaction
Conditions
Keywords
Emergency Department, Cocaine, Cocaine Intoxication, Cocaine Esterase
Brief summary
This is a Phase 2 single-blind, randomized, multicenter study to compare the efficacy and safety of a single dose of TNX-1300 to placebo with usual care in patients with acute cocaine intoxication within the emergency department setting.
Interventions
Patients will receive a single IV injection of TNX-1300.
Patients will receive a single IV injection of placebo with usual care (UC).
Sponsors
Study design
Masking description
Patients will be blinded to which treatment arm they are assigned to.
Eligibility
Inclusion criteria
* Subject is male or female and is 18-64 years of age. * Subject has the capacity to provide voluntary written informed consent. In cases in which the investigator is unclear if the subject has the capacity to consent, a determination regarding capacity must be made by a psychiatrist trained in assessment of capacity to consent to research in order for the subject to be eligible. * At Screening, subject presents with cardiac symptoms while intoxicated with cocaine, inclusive of elevated systolic or diastolic BP, as defined below, with or without behavioral symptoms: * Systolic BP \>140 mmHg, or * Diastolic BP \>90 mmHg Note: subjects with a QT interval corrected for heart rate (QTc) \>500 msec may be eligible for study participation, based on investigator judgment. * At Screening and Baseline assessments, subject must have a SIS total score of ≥4 * At Baseline, subject has a CGI-S score ≥3. * Subject has a positive urine drug screen test at Pre-screening to confirm cocaine use and detect polysubstance abuse (subject may test positive for cannabinoids and/or opioids and remain eligible; subject may test positive for alcohol by breathalyzer and remain eligible). * Subject must be willing to practice the following: * If female, practice one of the following methods of birth control throughout the study and for 28 days after study drug administration: * Hormonal methods such as oral, implantable, injectable, or transdermal contraceptives for a minimum of one full cycle (based on the patient's usual menstrual cycle period) before study drug administration; * Intrauterine device; * Bilateral tubal ligation * Double-barrier method (condoms, sponge, diaphragm, or vaginal ring with spermicidal jelly or cream); * If male, practice double-barrier method throughout the study and for 28 days after study drug administration, if female partner is not following birth control methods a-c mentioned above * Subject is a suitable candidate for investigational treatment based on the opinion of the investigator.
Exclusion criteria
* Subject who has been admitted to the ED involuntarily. * Subject who participated in this clinical study previously. * Subject has a score of 3 on the systolic and/or diastolic BP SIS components, a mental state or orientation SIS component score of ≥2, or an orientation SIS component score of ≥1 and the subject is not oriented to either person or place (i.e., only disorientation to time is allowed). * Subject who, at Screening, expresses C-SSRS suicidal ideation of Type 4 or 5 in the prior week or any C-SSRS suicidal behavior in the prior week. * Subject tests positive for stimulant drugs of abuse other than cocaine, including methylphenidate, 3,4-methylenedioxymethamphetamine, methamphetamine, or other amphetamines at Screening. * Subject has a clinically significant untreated cardiac condition, such as prior myocardial infarction, current ischemia assessed by ECG-based criteria, aortic dissection, ventricular fibrillation, Torsade de pointes, ventricular tachycardia, cardiomyopathy, pulmonary edema, cardiac arrest, significant conduction disturbance (e.g., greater than first degree heart block), QRS interval \>120 msec, or severe or life-threatening hypertension. Untreated hypertension may be allowed if not considered severe or life-threatening. Note: hypertension will be considered severe or life-threatening if systolic BP is \>200 mmHg and/or diastolic BP is \>130 mmHg. * Subject incurred or is likely to incur a myocardial infarction or other life-threatening severe event or has acute ECG changes indicative of acute coronary syndrome according to investigator judgment. Such changes may include new, transient, or dynamic ST-segment elevation, ST-depression, or significant Q waves. Based on investigator judgement, T-wave inversion and T-wave flattening may also be considered in the risk assessment for acute coronary syndrome. * Subject has a heart rate ≥180 bpm, atrial fibrillation, greater than first degree heart block, or chest pain with ECG-based evidence of ischemia. * Subject has a clinically significant or unstable medical illness, condition, or disorder that can compromise subject safety or adversely affect the evaluation of clinical outcome parameters. * Subject has a clinical history of anaphylaxis, severe asthma, hypersensitivity, or angioedema. * Subject requires physical restraints due to physiological and/or behavioral symptoms. * Subject receives anti-hypertensive medication(s) in the ED prior to study enrollment. * Subject is pregnant or breastfeeding. * Participation in another investigational drug study (current or within 30 days of Screening) or previous participation in a study of TNX-1300.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change from Baseline in Systolic BP at 60 minutes after dosing, comparing TNX-1300 to placebo with UC | 60 minutes after IV administration | Patients will undergo a Systolic BP assessment at Baseline and at 60 minutes after dosing. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change from Baseline in QT interval corrected for heart rate (QTc) at 15 minutes after dosing, comparing TNX-1300 to placebo with UC | 15 minutes after IV administration | Patients will undergo a 12-lead ECG at Baseline and at 15 minutes after dosing. |
| Change from Baseline in diastolic BP at 60 minutes after dosing, comparing TNX-1300 to placebo with UC | 60 minutes after IV administration | Patients will undergo a Diastolic BP assessment at Baseline and at 60 minutes after dosing |
| Change from Baseline in Stimulant Intoxication Scale (SIS) total score at 60 minutes after dosing, comparing TNX-1300 to placebo with UC | 60 minutes after IV administration | Patients will be assessed with the SIS for characterizing severity of cocaine intoxication at Baseline and at 60 minutes after dosing. The SIS has 6 items, each of which is scored on a range of 0-3 (4 items) or 0-4 (2 items). The SIS has a total score range of 0 to 20, with 0 being the lowest severity and 20 being the highest severity. |
Countries
United States