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internal practice and policy limitations including time commitment / workflow issues
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The goal of this study will aim to determine if adding phenobarbital or ketamine to a symptom-triggered benzodiazepine regimen decreases the rate of intensive care unit admissions during the treatment of alcohol withdrawal syndrome when compared to symptom-triggered benzodiazepine therapy alone.
The primary objective of this study is to compare phenobarbital and ketamine adjunctive therapies to lorazepam-based therapy in the treatment of acute alcohol withdrawal syndrome.
It is hypothesized that the use of an alternative agent, either phenobarbital or ketamine, when used as an adjunct to symptom-triggered lorazepam therapy will significantly reduce the rate of intensive care unit admissions and thereby reduce the total cost associated with hospital admission for treatment of alcohol withdrawal syndrome.
Enrolled patients will be admitted to Santa Barbara Cottage Hospital where they will be monitored with continuous pulse oximetry and cardiac telemetry. They will remain hospitalized while undergoing study-guided therapy in addition to supportive care for acute alcohol withdrawal syndrome. Patients will undergo standard of care therapy with lorazepam symptom-triggered therapy regardless of study participation.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Lorazepam + Ketamine + Placebo A | Active Comparator | Ketamine - infusion (0.15 - 0.4 mg/kg/hr) and placebo injections titrated by increases of 0.075 mg/kg/hr every 30 minutes for Clinical Institute Withdrawal Assessment for Alcohol (revised version) (CIWA-Ar) greater than or equal to 10 in addition to lorazepam symptom-triggered therapy Ketamine dosing will be based on ideal body weight Ketamine infusion will be discontinued once CIWA-Ar less than 10 for 4 hours |
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| Lorazepam + Phenobarbital + Placebo B | Active Comparator | Phenobarbital - IV push (260 mg loading followed by 130 mg q1 hour) with placebo infusion until CIWA-Ar less than 10 with a maximum daily dose of 10mg/kg in addition to lorazepam symptom-triggered dosing for recurrent symptoms (Gold 2007) Maximum daily dose will be used in order to prevent over sedation as well as provide adequate storage in pharmacy monitored refrigerators for study drugs |
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| Lorazepam + Placebo A + Placebo B | Placebo Comparator | Lorazepam will be administered every 30 minutes as indicated based on CIWA-Ar protocol for Cottage Health in addition to placebo injections and placebo infusion |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Ketamine | Drug | Ketamine infusion |
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| Measure | Description | Time Frame |
|---|---|---|
| Intensive Care Unit admission rate | Number of admissions to the intensive care unit | Presentation to Emergency Department through hospital stay, data will be utilized through study completion, anticipated 2 years |
| Measure | Description | Time Frame |
|---|---|---|
| Incidence of withdrawal seizures | Number of patients with documented seizures while treated for alcohol withdrawal syndrome | Presentation to Emergency Department through hospital stay, data will be utilized through study completion, anticipated 2 years |
| Clinical Institute Withdrawal Assessment of Alcohol Scale, Revised (CIWA-Ar) scores |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Noah Stites-Hallet, MD | Santa Barbara Cottage Hospital | Principal Investigator |
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| ID | Term |
|---|---|
| D007649 | Ketamine |
| D010634 | Phenobarbital |
| D008140 | Lorazepam |
| D000077330 | Saline Solution |
| ID | Term |
|---|---|
| D003510 | Cyclohexanes |
| D003516 | Cycloparaffins |
| D006840 | Hydrocarbons, Alicyclic |
| D006844 | Hydrocarbons, Cyclic |
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prospective, randomized control trial
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Each participant will be randomized according to a web-based randomization program employed by a research pharmacist once the Emergency Department provider deems the patient appropriate for inpatient treatment of alcohol withdrawal syndrome.
Each medication will be packaged by Santa Barbara Cottage Hospital pharmacy. In order to blind both the clinicians and the participants, the pharmacy will provide medication bags that are identical. Therefore, Emergency Department nursing staff and physicians will be unaware of which study drug is being provided to the patient. Normal saline will be used as a placebo to mimic study drugs (phenobarbital and ketamine). Pharmacy will remain unblinded and maintain records of which treatment assignment is prepared for each patient.
Treatment will be provided for the duration of the patient's hospitalization; therefore, treatment compliance will be documented in the electronic health record using the medication bag identifier.
| Phenobarbital | Drug | Phenobarbital intravenous injection |
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| Lorazepam | Drug | Standard of Care |
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| Placebo A | Drug | Placebo injection |
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| Placebo B | Drug | Placebo infusion |
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CIWA-Ar scores (initial, maximum, discharge); Total score is cumulative of subscale measures: Minimum score is 0 (no evidence of alcohol withdrawal), Maximum score is 67 (severe alcohol withdrawal) Subscale measures: A) Nausea and vomiting (score 0-7); B) Tremor (score 0-7); C) Paroxysmal sweats (score 0-7); D) Anxiety (score 0-7); E) Tactile disturbances (score 0-7); F) Auditory disturbances (score 0-7); G) Visual disturbances (score 0-7); H) Headache, fullness in head (score 0-7); I) Agitation (score 0-7); J) Orientation and clouding of sensorium (score 0-4) |
| Presentation to Emergency Department through hospital stay, data will be utilized through study completion, anticipated 2 years |
| Cumulative dose of medication/s administered | Cumulative dose of Lorazepam, Ketamine, and Phenobarbital | Presentation to Emergency Department through hospital stay, data will be utilized through study completion, anticipated 2 years |
| Incidence of refractory alcohol withdrawal requiring alternative sedation with dexmedetomidine, propofol or midazolam infusions | Number of patients who require Dexmedetomidine, Propofol or Benzodiazepine continuous infusions and average dose while being treated for alcohol withdrawal syndrome | Presentation to Emergency Department through hospital stay, data will be utilized through study completion, anticipated 2 years |
| Rate of mechanical ventilation | Rate of intubation | Presentation to Emergency Department through hospital stay, data will be utilized through study completion, anticipated 2 years |
| Incidence of alcohol withdrawal hallucinations | Number of patients with documented auditory or visual hallucinations | Presentation to Emergency Department through hospital stay, data will be utilized through study completion, anticipated 2 years |
| D006838 |
| Hydrocarbons |
| D009930 | Organic Chemicals |
| D001463 | Barbiturates |
| D011744 | Pyrimidinones |
| D011743 | Pyrimidines |
| D006573 | Heterocyclic Compounds, 1-Ring |
| D006571 | Heterocyclic Compounds |
| D001570 | Benzodiazepinones |
| D001569 | Benzodiazepines |
| D001552 | Benzazepines |
| D006574 | Heterocyclic Compounds, 2-Ring |
| D000072471 | Heterocyclic Compounds, Fused-Ring |
| D000077324 | Crystalloid Solutions |
| D007552 | Isotonic Solutions |
| D012996 | Solutions |
| D004364 | Pharmaceutical Preparations |