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TerminatedNCT03959852Updated Sep 11, 2020

Sub-Dissociative Ketamine and Fentanyl to Treat Moderate to Severe Pain

A Phase 4 interventional study of Fentanyl and Fentanyl and Ketamine in Pain, Acute, sponsored by Mercy Health Ohio. Terminated at 1 site in United States. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-09-11.

Sponsored by Mercy Health Ohio · Phase 4, Interventional, and Treatment

Why this study was terminated
Residency completed.

From the registry’s dates

  • Primary completion was Jun 2020, 6 years 4 months ago, and no results have been posted to the registry.
Phase
Phase 4
Study type
Interventional
Enrollment
6
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
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Study summary

The objective of this study is to evaluate the potential opioid-sparing effect associated with the novel combination of fentanyl and sub-dissociative ketamine in adult patients with moderate to severe pain in the emergency department.

Read the detailed description

Pain is a very common complaint in the emergency department (ED). The use of opioids to treat moderate to severe pain has increased over the last decade as well as the number of opioid related deaths. In 1999 to 2016, more than 630,000 people died from a drug overdose. Treatment for acute pain has been assessed in the ED, with review of several different pain medications. Sub-dissociative ketamine (SDK) has become a valuable treatment option for acute pain and in recent years, has been of increased interest due to the growing concerns regarding opioid abuse and opioid shortage in the United States. Sub-dissociative ketamine, an NMDA receptor antagonist, has been studied in dose ranges of 1-4.5 mg/kg for dissociative sedation, as well as dose ranges of 0.1-0.3 mg/kg to treat pain. The onset of action for an IV dose of 2 mg/kg has been studied, with onset usually within 30 seconds after injection and anesthetic effect lasting 5-10 minutes. Common side effects include elevated blood pressure, diplopia or nystagmus, nausea and vomiting. More rare and more severe side effects in dissociative doses include respiratory depression, emergency phenomenon, tonic and clonic movements, and anaphylaxis. However, these were rarely, if ever seen, findings in sub-dissociative doses. Several studies indicate that SDK is a safe and effective alternative to opioids for patients with complaints of moderate to severe pain that provides adequate analgesic effect by itself. In particular, several studies have compared SDK versus morphine, particularly looking at pain in individuals with abdominal pain, flank pain, low back pain or musculoskeletal pain, and acute fractures. SDK has also shown to decrease opioid consumption and the need for rescue analgesia. The studies showed that that there was no difference in average pain scores, but the amount of morphine required was significantly decreased. SDK has proven to be a safe alternative, but the side effects, although short, make it less desirable to use. To the investigator's knowledge, there has never been a study focusing on the use of combination fentanyl and SDK. Fentanyl, an opioid agonist, has been studied in low dose forms of 2 mcg/kg for pain, moderate dose forms of 2-20 mcg/kg for major surgical procedures, and high dose forms of 20-50 mcg/kg for orthopedic and open heart surgeries. Onset of action is almost immediate when given IV, and maximal effect of the drug may take several minutes. The usual duration of action is 30-60 minutes. Common side effects include hypertension, hypotension, dizziness, blurred vision, nausea, vomiting and laryngospasm. Serious side effects included respiratory depression, apnea, rigidity, bradycardia, serotonin syndrome, adrenal insufficiency, and if left untreated could cause cardiac arrest and circulatory depression. There have been several combination studies with SDK, but none regarding fentanyl and ketamine. In one study, combination SDK and reduced dose hydromorphone produced rapid pain relief without significant side effects. Another study indicated that morphine and SDK both provided adequate pain relief alone, but combined morphine and SDK required less morphine administration, had faster onset of relief, and provided sustained reduction in pain intensity for up to 2 hours.

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Conditions studied

  • Pain, Acute

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Keywords

  • Moderate
  • Severe
  • Pain
03

In context

Acute Pain

876 studies on the registry are indexed under Acute Pain; 154 are open to participants now.

This study's enrollment of 6 is below the median of 90 across 732 interventional studies indexed under Acute Pain.

Browse Acute Pain studies →

Lead sponsor

Mercy Health Ohio is the lead sponsor of 15 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • 18 - 65 years old
  • Moderate pain defined as 4-6 out of 10, severe pain defined as ≥ 7 out of 10 as defined by the numeric rating pain scale (NRS)
  • Proficient in reading and understanding English
  • Are deemed by the attending physician to require opioid therapy.

Exclusion criteria

Exclusion Criteria:

  • Inability to give consent,
  • Inability to use the numeric rating scale (NRS) score
  • Long-term use of opioids, history of chronic pain
  • Known substance abuse known as excessive use of a drug such as (e.g. alcohol, narcotics or cocaine)
  • Known hypersensitivity to ketamine or fentanyl
  • Pregnancy
  • Alcohol intoxication
  • Depression
  • Anxiety
  • Chronic obstructive pulmonary disease
  • Asthma
  • Cirrhosis
  • On dialysis
  • Acute ischemic stroke
  • Heart rate (HR) less \< 60 bpm or > 120 bpm
  • Systolic blood pressure (SBP) \< 90 mmHg or > 180 mmHg
  • Ischemic heart disease
  • Ketamine prior to arrival
  • Trauma patients
  • Sepsis or septic shock
  • Weight > 100 kg.
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
6 participants (actual)

Study arms

  • Active comparator
    Sub-Dissociative Ketamine alone

    0.3 mg/kg of Sub-Dissociative Ketamine IV administered over at least 1 minute

    Drug: Ketamine

  • Active comparator
    Fentanyl alone

    1 mg/kg of Fentanyl IV administered over at least 1 minute

    Drug: Fentanyl

  • Experimental
    Sub-dissociative Ketamine and Fentanyl

    Combined dose of 0.15 mg/kg of Sub-dissociative Ketamine and 0.5 mg/kg of Fentanyl IV administered over at least 1 minute

    Combination Product: Fentanyl and Ketamine

Interventions

  • DrugFentanyl

    1 mg/kg of Fentanyl IV administered over at least 1 minute

    Also known as: Fentanyl Citrate

  • Combination productFentanyl and Ketamine

    Combined dose of 0.15 mg/kg of Sub-dissociative Ketamine and 0.5 mg/kg of Fentanyl IV administered over at least 1 minute.

  • DrugKetamine

    0.3 mg/kg of Sub-Dissociative Ketamine IV administered over at least 1 minute

    Also known as: Ketamine Hydrochloride

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What researchers measure

Primary outcomes

  1. Analgesia of combination fentanyl and SDK as assessed using the pain scale 1-10

    Analgesia of combination fentanyl and SDK as assessed using the pain scale 1-10

    Time frame: ED encounter (less than 24 hours)

  2. Analgesia of fentanyl as assessed using the pain scale 1-10

    Analgesia of fentanyl as assessed using the pain scale 1-10

    Time frame: ED encounter (less than 24 hours)

  3. Analgesia of ketamine as assessed using the pain scale 1-10

    Analgesia of katamine as assessed using the pain scale 1-10

    Time frame: ED encounter (less than 24 hours)

Secondary outcomes

  1. OARRS report

    A retrospective review of OARRS report will be performed with each patient.

    Time frame: ED encounter (less than 24 hours)

  2. Opioid sparing response as assessed by number of times additional rescue doses of fentanyl were required

    Opioid sparing response as assessed by number of times additional rescue doses of fentanyl were required

    Time frame: ED encounter (less than 24 hours)

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Study locations

1 site
  • St. Elizabeth Boardman Hospital
    Boardman, Ohio 44512, United States
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References and documents

Publications

  • Hebsgaard S, Mannering A, Zwisler ST. Assessment of acute pain in trauma-A retrospective prehospital evaluation. J Opioid Manag. 2016 Sep/Oct;12(5):347-353. doi: 10.5055/jom.2016.0351. PubMed 27844474 ↗
  • Motov SM, Nelson LS. Advanced Concepts and Controversies in Emergency Department Pain Management. Anesthesiol Clin. 2016 Jun;34(2):271-85. doi: 10.1016/j.anclin.2016.01.006. PubMed 27208710 ↗
  • Todd KH. A Review of Current and Emerging Approaches to Pain Management in the Emergency Department. Pain Ther. 2017 Dec;6(2):193-202. doi: 10.1007/s40122-017-0090-5. Epub 2017 Nov 10. PubMed 29127600 ↗
  • Bowers KJ, McAllister KB, Ray M, Heitz C. Ketamine as an Adjunct to Opioids for Acute Pain in the Emergency Department: A Randomized Controlled Trial. Acad Emerg Med. 2017 Jun;24(6):676-685. doi: 10.1111/acem.13172. Epub 2017 Mar 22. PubMed 28177167 ↗
  • Duncan C, Riley B. BET 2: Low-dose ketamine for acute pain in the ED. Emerg Med J. 2016 Dec;33(12):892-893. doi: 10.1136/emermed-2016-206440.2. PubMed 27864394 ↗
  • Jennings PA, Cameron P, Bernard S, Walker T, Jolley D, Fitzgerald M, Masci K. Long-term pain prevalence and health-related quality of life outcomes for patients enrolled in a ketamine versus morphine for prehospital traumatic pain randomised controlled trial. Emerg Med J. 2014 Oct;31(10):840-3. doi: 10.1136/emermed-2013-202862. Epub 2013 Jul 13. PubMed 23851034 ↗
  • Lee EN, Lee JH. The Effects of Low-Dose Ketamine on Acute Pain in an Emergency Setting: A Systematic Review and Meta-Analysis. PLoS One. 2016 Oct 27;11(10):e0165461. doi: 10.1371/journal.pone.0165461. eCollection 2016. PubMed 27788221 ↗
  • Miller JP, Schauer SG, Ganem VJ, Bebarta VS. Low-dose ketamine vs morphine for acute pain in the ED: a randomized controlled trial. Am J Emerg Med. 2015 Mar;33(3):402-8. doi: 10.1016/j.ajem.2014.12.058. Epub 2015 Jan 7. PubMed 25624076 ↗
  • 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. PubMed 25817884 ↗
  • Motov S, Rosenbaum S, Vilke GM, Nakajima Y. Is There a Role for Intravenous Subdissociative-Dose Ketamine Administered as an Adjunct to Opioids or as a Single Agent for Acute Pain Management in the Emergency Department? J Emerg Med. 2016 Dec;51(6):752-757. doi: 10.1016/j.jemermed.2016.07.087. Epub 2016 Sep 29. PubMed 27693070 ↗
  • Pourmand A, Mazer-Amirshahi M, Royall C, Alhawas R, Shesser R. Low dose ketamine use in the emergency department, a new direction in pain management. Am J Emerg Med. 2017 Jun;35(6):918-921. doi: 10.1016/j.ajem.2017.03.005. Epub 2017 Mar 2. PubMed 28285863 ↗
  • Sin B, Ternas T, Motov SM. The use of subdissociative-dose ketamine for acute pain in the emergency department. Acad Emerg Med. 2015 Mar;22(3):251-7. doi: 10.1111/acem.12604. Epub 2015 Feb 25. PubMed 25716117 ↗
  • Abbasi S, Bidi N, Mahshidfar B, Hafezimoghadam P, Rezai M, Mofidi M, Farsi D. Can low-dose of ketamine reduce the need for morphine in renal colic? A double-blind randomized clinical trial. Am J Emerg Med. 2018 Mar;36(3):376-379. doi: 10.1016/j.ajem.2017.08.026. Epub 2017 Aug 14. PubMed 28821365 ↗
  • Ahern TL, Herring AA, Miller S, Frazee BW. Low-Dose Ketamine Infusion for Emergency Department Patients with Severe Pain. Pain Med. 2015 Jul;16(7):1402-9. doi: 10.1111/pme.12705. Epub 2015 Feb 3. PubMed 25643741 ↗
  • Dickenson AH. NMDA receptor antagonists: interactions with opioids. Acta Anaesthesiol Scand. 1997 Jan;41(1 Pt 2):112-5. doi: 10.1111/j.1399-6576.1997.tb04624.x. PubMed 9061093 ↗
  • Galinski M, Dolveck F, Combes X, Limoges V, Smail N, Pommier V, Templier F, Catineau J, Lapostolle F, Adnet F. Management of severe acute pain in emergency settings: ketamine reduces morphine consumption. Am J Emerg Med. 2007 May;25(4):385-90. doi: 10.1016/j.ajem.2006.11.016. PubMed 17499654 ↗
  • Lilius TO, Jokinen V, Neuvonen MS, Niemi M, Kalso EA, Rauhala PV. Ketamine coadministration attenuates morphine tolerance and leads to increased brain concentrations of both drugs in the rat. Br J Pharmacol. 2015 Jun;172(11):2799-813. doi: 10.1111/bph.12974. PubMed 25297798 ↗
  • Wiesenfeld-Hallin Z. Combined opioid-NMDA antagonist therapies. What advantages do they offer for the control of pain syndromes? Drugs. 1998 Jan;55(1):1-4. doi: 10.2165/00003495-199855010-00001. PubMed 9463786 ↗
  • Ahern TL, Herring AA, Stone MB, Frazee BW. Effective analgesia with low-dose ketamine and reduced dose hydromorphone in ED patients with severe pain. Am J Emerg Med. 2013 May;31(5):847-51. doi: 10.1016/j.ajem.2013.02.008. Epub 2013 Apr 18. PubMed 23602757 ↗
  • Ahmadi O, Isfahani MN, Feizi A. Comparing low-dose intravenous ketamine-midazolam with intravenous morphine with respect to pain control in patients with closed limb fracture. J Res Med Sci. 2014 Jun;19(6):502-8. PubMed 25197290 ↗
  • Beaudoin FL, Lin C, Guan W, Merchant RC. Low-dose ketamine improves pain relief in patients receiving intravenous opioids for acute pain in the emergency department: results of a randomized, double-blind, clinical trial. Acad Emerg Med. 2014 Nov;21(11):1193-202. doi: 10.1111/acem.12510. PubMed 25377395 ↗
  • Bossard AE, Guirimand F, Fletcher D, Gaude-Joindreau V, Chauvin M, Bouhassira D. Interaction of a combination of morphine and ketamine on the nociceptive flexion reflex in human volunteers. Pain. 2002 Jul;98(1-2):47-57. doi: 10.1016/s0304-3959(01)00472-9. PubMed 12098616 ↗
  • Jennings PA, Cameron P, Bernard S, Walker T, Jolley D, Fitzgerald M, Masci K. Morphine and ketamine is superior to morphine alone for out-of-hospital trauma analgesia: a randomized controlled trial. Ann Emerg Med. 2012 Jun;59(6):497-503. doi: 10.1016/j.annemergmed.2011.11.012. Epub 2012 Jan 13. PubMed 22243959 ↗
  • Johansson P, Kongstad P, Johansson A. The effect of combined treatment with morphine sulphate and low-dose ketamine in a prehospital setting. Scand J Trauma Resusc Emerg Med. 2009 Nov 27;17:61. doi: 10.1186/1757-7241-17-61. PubMed 19943920 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 11, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03959852
Lead sponsor
Mercy Health Ohio
Responsible party
Sponsor
First posted
May 22, 2019
Start date
Nov 18, 2019
Primary completion
Jun 5, 2020
Completion
Jun 5, 2020
Last update
Sep 11, 2020

Study contacts

David Gemmel
study director · Director of Research

Oversight

FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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