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Ativan/Seizure Study


 
Principal Investigator:
P.I.: Rachel Stanley, MD, MHSA


Study Abstract (brief description, 3 - 5 sentences), including "short name of the study":
Ativan/Seizure Study
This is a pharmacokinetic study of lorazepam/Ativan in pediatric patients diagnosed with seizure disorder. Patients that receive Ativan as standard of care and enroll in the study will have an overnight stay in the Emergency Department have a series of blood draws during the next 48 hours (Cohort 1). Subjects may also be provided with a free Medic-Alert bracelet. Children with previous exposure to Ativan but not currently experiencing seizures may enroll in another study group, and receive an elective dose of Ativan and a series of blood draws during an overnight visit to the GCRC (Cohort 2). Guardians of enrolled children will be contacted for a telephone follow-up interview 7-10 and 30-40 days after the study visit. The University of Michigan is one of 10 sites in the Pediatric Emergency Care Applied Research Network (PECARN) participating in this study.


IRB# and approval date:
2004-1017, Approval Date: April 21, 2005

Study Start and End Dates:
Start date: July 18, 2005 and End Date: December 2005

Inclusion criteria:
1. Ages 3 months to less than 18 years.
2. Prior known exposure to lorazepam.

Exclusion criteria:
1. Parent/caretaker refusal or inability to obtain informed consent by the methods described.
2. Patient’s refusal to assent (for patients aged = 7 yrs).
3. Weight <6.0 kg for Cohort 1 or weight <8.5 kg for cohort 2
4. Inability to insert indwelling intravenous catheter for blood sampling.
5. Pregnancy
6. Sustained hypotension (> 10 minutes of BP below the fifth percentile for age) at time of examination.
7. Significant arrhythmia (other than sinus tachycardia) at time of examination.
8. Known sensitivity to lorazepam, severe adverse reaction or known contraindication to lorazepam use.
9. Use of lorazepam within 4 days of study drug dosing.
10. Subjects that are American Society of Anesthesiology (ASA) Class greater than 2, unless the reason for higher ASA Class is solely their epilepsy or status epilepticus. (For Cohort 2, ASA class 1 is required unless the reason for higher ASA Class is solely their epilepsy)
11. Age-specific hemoglobin below the normal limit.
12. Significant renal or hepatic disease as evidenced by laboratory abnormalities greater than twice the upper limit of normal for liver enzymes (Cohort 2 only)

Names of staff working on study, including beeper and telephone number:

Rachel McDuffie, MPH
Pager 1368

Will any test be charges to the study? If yes, please list and provide billing information.
Yes – all blood draws completed for study purposes will be charged to the research account.
No study procedures (i.e. beyond standard of care) will be billed to patient’s insurance company.

Patients will be compensated for any 24-48hr return visits (both cohorts), and for the overnight GCRC visit (Cohort 2 only).

Is the subject having tests and procedures done that will be relevant to their care in the ED or follow-up from the ED? If yes, what are the tests/procedures? Who will be responsible for interpreting those results and reporting them to the patient and , if appropriate, providing recommendations for follow-up?

All subjects will receive regular monitoring including vital signs w/lead II ECG, aspiration exams and safety labs. If the assessment of any study data indicates a reason for concern, the Principle Investigator (Rachel Stanley, MD, MHSA) will follow-up with patient and patient’s caregiver(s) and provide a referral if appropriate.

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