A Comparative Efficacy Trial of IV Acetaminophen Versus IV Ketorolac for Emergency Department Treatment of Generalized Headache
| Status: | Enrolling by invitation |
|---|---|
| Conditions: | Migraine Headaches, Hospital |
| Therapuetic Areas: | Neurology, Other |
| Healthy: | No |
| Age Range: | 18 - 65 |
| Updated: | 4/17/2018 |
| Start Date: | September 5, 2017 |
| End Date: | September 2018 |
A Randomized Double-blind Comparative Efficacy Trial of IV Acetaminophen Versus IV Ketorolac for Emergency Department Treatment of Generalized Headache
This randomized, double-blind trial will compare the clinical efficacy of IV acetaminophen to
that of IV ketorolac as adjuncts to standard therapy (prochlorperazine and diphenhydramine)
in the treatment of patients presenting to the emergency department with chief complaint of
"headache" or variants thereof.
that of IV ketorolac as adjuncts to standard therapy (prochlorperazine and diphenhydramine)
in the treatment of patients presenting to the emergency department with chief complaint of
"headache" or variants thereof.
After initial assessment of the patient by the provider, including careful review of
inclusion and exclusion criteria, informed consent will be obtained. If a patient does not
wish to participate in this study, he/she will receive alternative treatment at the
discretion of their ED provider.
The provider will place orders in the electronic medical record for "Headache study order
set". This order set includes Compazine® 10 mg IV, Benadryl® 25 mg IV, and "study drug".
Pharmacy will receive the order for the study drug. The research pharmacist will randomly
assign participants to group A (1000 mg Ofirmev®) or group B (15 mg ketorolac). He/she will
fill medication vials and IV bags in each "study kit". The kit for group A will contain a
100mL bag containing 1000 mg acetaminophen and a placebo vial of normal saline as well as
both Compazine® and Benadryl®. The kit for group B will contain 100mL 0.9% normal saline and
a vial containing 15 mg ketorolac as well as Compazine® and Benadryl®. The "study kit" will
be sent to the emergency department via the tube system. When the study kit arrives, he/she
will give each patient Compazine® and Benadryl®, hang the IV bag, and administer the contents
of the vial. Therefore, every patient will receive a "push" of the contents in the vial
(ketorolac or normal saline) and an 100mL infusion (Ofirmev or normal saline).
inclusion and exclusion criteria, informed consent will be obtained. If a patient does not
wish to participate in this study, he/she will receive alternative treatment at the
discretion of their ED provider.
The provider will place orders in the electronic medical record for "Headache study order
set". This order set includes Compazine® 10 mg IV, Benadryl® 25 mg IV, and "study drug".
Pharmacy will receive the order for the study drug. The research pharmacist will randomly
assign participants to group A (1000 mg Ofirmev®) or group B (15 mg ketorolac). He/she will
fill medication vials and IV bags in each "study kit". The kit for group A will contain a
100mL bag containing 1000 mg acetaminophen and a placebo vial of normal saline as well as
both Compazine® and Benadryl®. The kit for group B will contain 100mL 0.9% normal saline and
a vial containing 15 mg ketorolac as well as Compazine® and Benadryl®. The "study kit" will
be sent to the emergency department via the tube system. When the study kit arrives, he/she
will give each patient Compazine® and Benadryl®, hang the IV bag, and administer the contents
of the vial. Therefore, every patient will receive a "push" of the contents in the vial
(ketorolac or normal saline) and an 100mL infusion (Ofirmev or normal saline).
Inclusion Criteria:
- Age 18 to 65 years
- Presenting chief complaint of headache, migraine, tension headache, cluster headache,
or headache not otherwise specified
- Report of pain 4 using a standard 11-point numerical scale (0 to 10; 0=no pain and
10=worst possible pain)
Exclusion Criteria:
- Age < 18 years or > 65 years
- Inability to provide informed consent
- Physical or mental disability hindering adequate response to assessment of pain
- Hemodynamic instability/medical condition requiring acute life-saving medical
intervention
- Documented or suspected pregnancy or currently breastfeeding
- Known brain mass, intracranial hemorrhage, skull fracture
- Known allergy, hypersensitivity, or prior adverse reaction to acetaminophen, NSAIDs,
diphenhydramine, or prochlorperazine
- Known contraindications to acetaminophen use
- Severe hepatic impairment, severe active liver disease
- Known contraindications to ketorolac/NSAID use
- Active bleeding, peptic ulcer disease, bleeding dyscrasias
- Known contraindication to diphenhydramine use
- Known contraindication to prochlorperazine use
- Comatose states or in the presence of large amounts of CNS depressants
- Patients who have consumed
- > 2600 mg acetaminophen within the past 24 hours
- > 500 mg acetaminophen within the previous 4 hours
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