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Atomized Intranasal Ketorolac at 30 mg Versus 20 mg for the Treatment of Acute Pain in the Emergency Department

Atomized Intranasal Ketorolac at 30 mg Versus 20 mg for the Treatment of Acute Pain in the Emergency Department: A Randomized Non-inferiority Trial

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07816302
Enrollment
100
Registered
2026-09-11
Start date
2026-10-10
Completion date
2027-05-01
Last updated
2026-09-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Intranasal Drug Administration, Ketorolac, Pain

Keywords

Emergency department, pain, intranasal, ceiling effect, Ketorolac

Brief summary

This study aims to compare the analgesic effectiveness and side effects of intranasal ketorolac at 30 mg Versus 20 mg for the Treatment of Acute moderate and severe Pain in the Emergency Department.

Detailed description

Pain control is one of the problems in emergency departments (EDs). Analgesics in the intranasal (IN) form have been come into interest and focus because of their ease of application and effectiveness. Recently, IN ketorolac at 30mg has been turned out to have comparable efficacy with parenteral forms. Considering the ceiling effect of the ketorolac, this trial will study whether lower dose of 20mg for pain management is equally effective as 30mg dose. The study is a multicenter, prospective, randomized, double blind, parallel group non inferiority clinical trial conducted in three EDs. Eligible participants are adults aged 18-65 years presenting with acute moderate to severe pain \[numeric rating scale (NRS)≥4\]. Participants will be randomized to receive atomized IN ketorolac 20 mg or 30 mg. Primary outcome is change in pain reduction at 30 minutes post administration. Secondary outcomes include pain reduction at 15, 45, and 60 minutes, requirement for rescue analgesia (IV morphine 0.1 mg/kg available at 30), gastrointestinal and other adverse effects, and patient satisfaction.

Interventions

DRUG20mg intranasal ketorolac

20 mg (1cc) ketorolac will be administered intranasally using mucosal atomizer. Half dose (0.5 cc) in each nostril

DRUG30mg Intranasal Ketorolac

30 mg (1cc) ketorolac will be administered intranasally using mucosal atomizer. Half dose (0.5 cc) in each nostril

Sponsors

Tehran University of Medical Sciences
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Age: 18-65 years * Weight \> 50 kg * Able to provide informed consent * Acute pain (\<48 hours) with verbally administered NRS≥4 (0-10 range, 0 = no - pain and 10 = worst imaginable pain)

Exclusion criteria

* Active peptic ulcer disease (PUD) * History of hypersensitivity to NSAIDs * Pregnancy and breastfeeding * Renal failure * Hepatic failure * Patients who have received analgesics within the past 6 hours * Nasal congestion * Upper respiratory tract infection * Patients with a history of kidney transplantation * Active gastrointestinal bleeding * Systolic blood pressure less than 90 mmHg or greater than 180 mmHg * Heart rate less than 50 per minute or greater than 150 per minute * Concurrent use of NSAIDs or anticoagulant drugs * Inability to provide informed consent * Anatomical abnormalities of the nose or skull base (congenital or acquired) * Hyperreactive airway disease such as severe asthma * Coagulation disorders * Intracranial hemorrhage * Suspected aortic dissection * Suspected rupture of abdominal aortic aneurysm * History of gastrointestinal perforation * Gastrointestinal bleeding within the past month * Chronic pain disorders * Substance misuse * Immediate opioid necessity * Altered mental status * Any pain that is considered to be not appropriate for receiving NSAIDS by emergency physician

Design outcomes

Primary

MeasureTime frameDescription
Pain score at 30 minutes30 minutes post-administrationNumerical Rating Scale (NRS) for pain, ranging from 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain. Higher scores indicate worse pain (worse outcome)

Secondary

MeasureTime frameDescription
Pain score at 15 minutes15 minutes post-administrationNumerical Rating Scale (NRS) for pain, ranging from 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain. Higher scores indicate worse pain (worse outcome)
Pain score at 45 minutes45 minutes post-administrationNumerical Rating Scale (NRS) for pain, ranging from 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain. Higher scores indicate worse pain (worse outcome)
Pain score at 60 minutes60 minutes post-administrationNumerical Rating Scale (NRS) for pain, ranging from 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain. Higher scores indicate worse pain (worse outcome)
Need for rescue analgesia30 minutes post-administrationIV morphine 0.1 mg/kg will be available at 30 minutes in cases of patients request
Side effectsFrom the drug administration to 60 minutes afterwardThe patients will be assessed every 15 minutes for this outcome
Nasal irritation60 minutes after the drug administrationNasal irritation will be assessed using a 3-level Likert-like scale, ranging from 1 to 3, where 1 = no nasal irritation, 2 = mild nasal irritation, and 3 = severe nasal irritation. Higher scores indicate greater nasal irritation (worse outcome).
Patient satisfaction score60 minutes after the drug administrationPatients will be asked to rate their satisfaction using a 5-level Likert-like scale, ranging from 1 to 5, where 1 = very dissatisfied and 5 = very satisfied. Higher scores indicate greater satisfaction (better outcome).

Contacts

CONTACTHadi Mirfazaelian, MD
h-mirfazaelian@sina.tums.ac.ir00982161192240
PRINCIPAL_INVESTIGATORHadi Mirfazaelian

Tehran University of Medical Sciences

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 17, 2026