ArticleScandinavian journal of trauma, resuscitation and emergency medicine2023
Randomised controlled trial of analgesia for the management of acute severe pain from traumatic injury: study protocol for the paramedic analgesia comparing ketamine and morphine in trauma (PACKMaN).
Article in Scandinavian journal of trauma, resuscitation and emergency medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
7 citing papers in PubMed, 11 citations in OpenAlex.
- Paramedic analgesia comparing ketamine and morphine in trauma. A synopsis of the PACKMaN double-blind RCT.Health technology assessment (Winchester, England) · 2026Trial
- Ketamine Low dOse Evaluation on morphine consumption in traumatic patients: study protocol for a randomized, double-blind, placebo-controlled trial (KLOE-Trial).Scandinavian journal of trauma, resuscitation and emergency medicine · 2026Article
- Cost-effectiveness of paramedic administered ketamine compared to morphine for the management of acute severe pain from traumatic injury.Cost effectiveness and resource allocation : C/E · 2026Article
- Safety and compliance among newly qualified paramedics in a pre-hospital clinical trial of an investigational medicinal product: a post-hoc analysis of the PACKMaN randomised controlled trial.British paramedic journal · 2025Article
- Paramedic analgesia comparing ketamine and morphine in trauma (PACKMaN): a randomised, double-blind, phase 3 trial.The Lancet regional health. Europe · 2025Article
- Providing feedback to frontline paramedics involved in research: a service evaluation within Yorkshire Ambulance Service.British paramedic journal · 2025Article
- Prehospital critical care drug-therapy and 30-day mortality in patients with acute respiratory disease.World journal of emergency medicine · 2025Article
Corrections and comments
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Authors and funding
14 authors at 6 institutions in 1 country.
Funding
Abstract
backgroundPrehospital analgesia is often required after traumatic injury, currently morphine is the strongest parenteral analgesia routinely available for use by paramedics in the United Kingdom (UK) when treating patients with severe pain. This protocol describes a multi-centre, randomised, double blinded trial comparing the clinical and cost-effectiveness of ketamine and morphine for severe pain following acute traumatic injury.
methodsA two arm pragmatic, phase III trial working with two large NHS ambulance services, with an internal pilot. Participants will be randomised in equal numbers to either (1) morphine or (2) ketamine by IV/IO injection. We aim to recruit 446 participants over the age of 16 years old, with a self-reported pain score of 7 or above out of 10. Randomised participants will receive a maximum of 20 mg of morphine, or a maximum of 30 mg of ketamine, to manage their pain. The primary outcome will be the sum of pain intensity difference. Secondary outcomes measure the effectiveness of pain relief and overall patient experience from randomisation to arrival at hospital as well as monitoring the adverse events, resource use and cost-effectiveness outcomes. DISCUSSION: The PACKMAN study is the first UK clinical trial addressing the clinical and cost-effectiveness of ketamine and morphine in treating acute severe pain from traumatic injury treated by NHS paramedics. The findings will inform future clinical practice and provide insights into the effectiveness of ketamine as a prehospital analgesia.
trial registrationISRCTN, ISRCTN14124474. Registered 22 October 2020, https://www.isrctn.com/ISRCTN14124474.
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