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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05518877
Other study ID # 22194
Secondary ID
Status Recruiting
Phase Phase 4
First received
Last updated
Start date December 7, 2022
Est. completion date November 30, 2024

Study information

Verified date March 2024
Source Summa Health System
Contact Vice President, Research, Sponsored Programs & Innovation
Phone 800-421-0925
Email research@summahealth.org
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This will be an intent to treat prospective, double blind, double-dummy, randomized trial. Our primary objective is the reduction of side effects of sub dissociative dose ketamine given by slow intravenous (IV) infusion over 30 minutes vs. 15 minutes in the treatment of acute, severe pain in Emergency Department (ED) patients. The secondary objective will be to maintain adequate pain control (as defined by a Visual Analog Scale (VAS) score of ≤ 5cm) at 30 minutes for both groups.


Description:

Previous research has shown that low dose ketamine (LDK) Intravenous push (IVP) (0.3mg/kg) to have equivalent pain reduction in moderate to severe acute pain in the Emergency Department (ED) when compared to standard of care of morphine intravenous push (IVP) (0.1mg/kg). Ketamine has been shown to produce side effects in these studies, including dizziness, feeling of unreality and mood changes, but no unexpected side effects or adverse events. Additional studies have compared IVP with slower infusion of low dose ketamine (LDK) and have shown a decrease in side effects while maintaining similar analgesic efficacy. This previous trial found increased feelings of unreality for the IVP group (difference of 37.5%) as well as increased rates of sedation. In clinical practice, increasing the time/duration of the infusion has resulted in a decrease of reported side effects from patients while still maintaining analgesia. There have been no studies done to prove that there is a further reduction in side effects with a longer LDK infusion. The investigators believe that increasing the infusion time to greater than 15 minutes will reduce the frequency and intensity of expected side effects of ketamine felt by participants and allow for further use of ketamine as a non-opiate analgesic in the ED. Overall aims of project: 1. Reduce overall side effects of low dose ketamine when given over 30 minutes versus 15 minutes. 2. Maintain adequate pain control, as defined by a Visual Analogue Scale (VAS) score of ≤5 cm at 30 minutes for both groups. Hypothesis: Slow infusion of low dose ketamine (LDK) over 30 minutes will provide adequate pain control (as defined by VAS score of ≤5 cm), and reduce incidence and severity (by at least 20% or 1 point on SERSDA scale) of known side effects when compared to LDK given over 15 minutes in moderate to severe acute pain for patients presenting to the ED. Study Design The location of this study will be the Akron City Hospital Emergency Department. The trial will enroll approximately 48 participants over a 24-month enrollment period. This will be an intent to treat prospective, double blind, double-dummy, randomized trial. The primary outcome will be a comparison of side effects of sub dissociative dose ketamine given by slow IV infusion over 15 minutes vs 30 minutes in treatment of moderate to severe acute pain in ED patients. The secondary outcome will be adequate pain control (VAS ≤5 cm), and need for rescue analgesia between the two groups. The control group will receive slow IV infusion of ketamine over 15 minutes. The experimental group will receive slow IV infusion of ketamine over 30 minutes. If the potential participant meets all eligibility criteria, they will be consented by study staff members and then randomized to receive Ketamine 0.25mg/kg in 100cc normal saline (NS) as IV infusion over specified time as well as "placebo" 100cc NS over the other time slot. Pharmacy staff will blind medication as well as provide medication in a blinded fashion to the nurse who will use infusion pumps to deliver both study medication and placebo simultaneously. Nursing staff will receive training on administration of medication prior to starting the study. The investigators will measure the side effect profile using the Side Effects Rating Scale for Dissociative Anesthetics (SERSDA) along with the VAS (visual analog scale) scores from 0-100mm. Vital signs (heart rate, blood pressure, respiratory rate and oxygen saturation) will also be obtained at 0, 5, 15, 30, 60, and 90 minutes from the start of the ketamine/NS placebo infusion.


Recruitment information / eligibility

Status Recruiting
Enrollment 48
Est. completion date November 30, 2024
Est. primary completion date August 31, 2024
Accepts healthy volunteers No
Gender All
Age group 18 Years to 110 Years
Eligibility Inclusion criteria: - Patients aged 18 or older - Primary complaint of acute moderate to severe pain on VAS/ numeric pain scale (a score of =5cm which corresponds to 50mm). - Pain described as abdominal, flank, back, musculoskeletal, or traumatic chest pain - Must be alert and oriented times three - Able to provide consent Exclusion criteria: - Pregnant - Breastfeeding - Altered mental status - Known or reported allergy, hypersensitivity or intolerance to ketamine - Unstable vital signs (systolic blood pressure <80 or >180mmHg, heart rate <50 or >150 beats per minute, and respiratory rate <10 or >30 breaths per minute) - History of unstable heart disease, such as arrhythmias, congestive heart failure, or coronary heart disease. - History of untreated or uncontrolled thyroid disease - Acute head or eye injury - Active or current use of alcohol or drugs - Known intracranial hypertension - Hepatic or renal insufficiency - Current active manic phase of bipolar disorder - Active delusions, hallucinations, or schizophrenia - Patients who have recent fentanyl use within 60 minutes or other analgesic use (opiates) within 4 hours of study enrollment (signing of consent) - Patients who have enrolled in the study during a previous ED encounter - Chronic use of opiates (i.e.: fentanyl patch, SR opiates)

Study Design


Intervention

Drug:
Ketamine
Administration of Ketamine

Locations

Country Name City State
United States Summa Health System Akron Ohio

Sponsors (1)

Lead Sponsor Collaborator
Summa Health System

Country where clinical trial is conducted

United States, 

References & Publications (2)

Motov S, Mai M, Pushkar I, Likourezos A, Drapkin J, Yasavolian M, Brady J, Homel P, Fromm C. A prospective randomized, double-dummy trial comparing IV push low dose ketamine to short infusion of low dose ketamine for treatment of pain in the ED. Am J Emerg Med. 2017 Aug;35(8):1095-1100. doi: 10.1016/j.ajem.2017.03.004. Epub 2017 Mar 3. — View Citation

Motov S, Rockoff B, Cohen V, Pushkar I, Likourezos A, McKay C, Soleyman-Zomalan E, Homel P, Terentiev V, Fromm C. Intravenous Subdissociative-Dose Ketamine Versus Morphine for Analgesia in the Emergency Department: A Randomized Controlled Trial. Ann Emerg Med. 2015 Sep;66(3):222-229.e1. doi: 10.1016/j.annemergmed.2015.03.004. Epub 2015 Mar 26. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Side Effect Rating Scale for Dissociative Anesthetics (SERSDA) Score Overall side effects as measured by the Side Effect Rating Scale for Dissociative Anesthetics (SERSDA). SERDSA measures severity of nine adverse effects based on a 5-point scale from "0" (no adverse effect) to "4" (very bothersome effect). 30 minutes
Secondary Visual Analog Scale (VAS) Score Severity of Self-Reported Pain on the standard 100mm VAS scale. Visual Analogue Scale scoring is done by asking the subject to mark the spot on the VAS Pain Assessment Tool (0-10cm) to indicate their perception of pain. Following this, the investigator scores the intensity of pain according to the 0-100mm corresponding scale (one instrument i.e., 5cm= 50mm) 30 minutes
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