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Reducing Prehospital Medication Errors & Time to Drug Delivery by EMS During Simulated Pediatric CPR

A Mobile Device App to Reduce Prehospital Medication Errors and Time to Drug Preparation and Delivery by EMS During Simulated Pediatric Cardiopulmonary Resuscitation: a Multicenter, Prospective, Randomized, Controlled Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03921346
Enrollment
150
Registered
2019-04-19
Start date
2019-09-03
Completion date
2020-01-31
Last updated
2024-10-03

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

Conditions

Cardiopulmonary Arrest, Emergency Medical Services, Medication Errors, Pediatrics, Resuscitation

Keywords

Medication errors, Drugs, Pediatrics, Biomedical Technology, Mobile applications, Emergency Medical Services

Brief summary

The study investigators will recruit paramedics in many Emergency Medical Services (EMS) in Switzerland to prepare direct intravenous (IV) emergency drugs during a standardized simulation-based pediatric out-of-hospital cardiac arrest scenario. According to randomization, each paramedic will be asked to prepare sequentially 4 IV emergency drugs (epinephrine, midazolam, dextrose 10%, sodium bicarbonate 4.2%) following either their current conventional methods or by the aim of a mobile device app. This app is designed to support drug preparation at pediatric dosages. In a previous multicenter randomized trial with nurses, the investigators reported the ability of this app to significantly reduce in-hospital continuous infusion medication error rates and drug preparation time compared to conventional preparation methods during simulation-based resuscitations. In this trial, the aim was to assess this app during pediatric out-of-hospital cardiopulmonary resuscitation with paramedics.

Detailed description

Children represent a vulnerable population with specific medical needs compared to adults. Fast, accurate, and safe preparation and administration of IV drugs is both complex and time consuming in pediatric critical situations, such as cardiopulmonary resuscitation (CPR). Most drugs given IV to children are provided in vials originally prepared for the adult population, which leads to the need for a specific individual, weight-based drug dose calculation and preparation for each child that varies widely across age groups. This error-prone process and the lower dosing error tolerance of children place them at a high risk for life-threatening medication errors. Despite well equipped and staffed environments with numerous available safeguards, direct IV medication errors have been reported in up to 41% of cases during simulated in-hospital pediatric resuscitations, 65% of which were incorrect medication dosage, making it the most common error. The rate of errors is also important in the prehospital setting, occurring in more than 30% of all pediatric drugs administered. As paramedics have little exposure to critically ill children, they have limited opportunities to administer resuscitation drugs at pediatric doses and to train this skill. Moreover, in resuscitation, time is inversely correlated to survival. During the first 15 min of in-hospital pediatric CPR, survival and favorable neurological outcome decrease linearly by 2,1% and 1,2% per min, respectively, and rely in part on drug preparation time either in- or out-of-hospital. Among non-shockable pediatric out-of-hospital cardiac arrests, each minute delay to epinephrine delivery is associated with 9% decrease in the odds of survival. Regrettably, in the prehospital setting, the majority of patients receive epinephrine more than 10 minutes after EMS arrival. The chain of survival therefore critically relies on early out-of-hospital CPR by EMS, and onsite administration of IV emergency drugs without delay before a rapid transfer to pediatric emergency departments and advanced care. In a previous multicenter, randomized crossover trial, medication errors, time to drug preparation, and time to drug delivery for continuous infusions during simulation-based pediatric in-hospital postcardiac arrest scenarios were significantly reduced by using a mobile device app - the pediatric accurate medication in emergency situations (PedAMINES™) app - designed to help pediatric drug preparation. The present multicenter trial aims to compare the impact of this app with conventional calculation methods for the preparation of direct IV drugs during standardized, simulation-based, pediatric out-of-hospital cardiac arrest scenarios. The investigators hypothesized that use of the app might extend and scale up the previous multicenter in-hospital observations by similarly reducing occurrence of medication errors and time to drug preparation and delivery when used by paramedics in out-of-hospital settings. In this trial, the investigators will recruit paramedics in many EMS in Switzerland to prepare direct IV emergency drugs during a standardized simulation-based pediatric out-of-hospital cardiac arrest scenario with a high-fidelity WiFi manikin (Laerdal SimBaby). The scenario will take place out-of-hospital in a simulated children's room to increase realism. On the day of participation after random allocation (1:1 allocation ratio), each participating paramedic will (1) complete a survey collecting data regarding their demographics, care training, and simulation and computer experience, (2) receive a standardized 5-min training session on how to use the app, and (3) be presented the simulation manikin characteristics. The paramedics will then be asked to perform a 20-min highly realistic pediatric CPR scenario on the high-fidelity manikin. Each paramedic will be asked to prepare sequentially 4 intravenous emergency drugs (epinephrine, midazolam, dextrose 10%, sodium bicarbonate 4.2%) following either their current conventional methods or by the aim of the mobile app. The procedure is standardized across all sites to follow the same chronological progression and range of difficulty to ensure each participant is exposed to exactly the same case, with similar challenges in decision making and treatment preparation provided on the same manikin. All the actions (i.e. primary and secondary outcomes) performed by the paramedics during the scenario will be automatically recorded and stored by the responsive simulator detectors, the app, and by several GoPro Hero 5 Black edition action video cameras worn by the paramedics and placed within the room. The study will be carried out in accordance with the Consolidated Standards of Reporting Trials of Electronic and Mobile Health Applications and Online TeleHealth (CONSORT-EHEALTH) guidelines and the Reporting Guidelines for Health Care Simulation Research. This study aims to compare the impact of this app with conventional calculation methods for the preparation of direct IV drugs during standardized, simulation-based, pediatric out-of-hospital cardiac arrest scenarios, were paramedics are little exposed to pediatric CPRs. The investigators hypothesize that use of the app might extend and scale up their previous multicenter in-hospital observations by similarly reducing occurrence of medication errors and time to drug preparation and delivery when used by paramedics in out-of-hospital settings.

Interventions

DEVICEMobile device app (PedAMINES™) 1st drug

To prepare 0.01 mg/kg epinephrine (0.1 mL/kg of 0.1 mg/mL concentration)

DEVICEMobile device app (PedAMINES™) 2nd drug

To prepare 0.1 mg/kg midazolam (of 5 mg/mL concentration ad 10 mL sodium chloride 0.9%)

DEVICEMobile device app (PedAMINES™) 3rd drug

To prepare 4 mL/kg dextrose 10%

DEVICEMobile device app (PedAMINES™) 4th drug

To prepare 1 mmol/kg sodium bicarbonate (of 4.2% = 0.5 mmol/L concentration)

DEVICEConventional method 1st drug

To prepare 0.01 mg/kg epinephrine (0.1 mL/kg of 0.1 mg/mL concentration)

DEVICEConventional method 2nd drug

To prepare 0.1 mg/kg midazolam (of 5 mg/mL concentration ad 10 mL sodium chloride 0.9%)

DEVICEConventional method 3rd drug

To prepare 4 mL/kg dextrose 10%

DEVICEConventional method 4th drug

To prepare 1 mmol/kg sodium bicarbonate (of 4.2% = 0.5 mmol/L concentration)

Sponsors

University Hospital, Geneva
CollaboratorOTHER
University of Lausanne Hospitals
CollaboratorOTHER
Schutz & Rettung Sanitat
CollaboratorOTHER
Salva Servizio Ambulanza Locarnese e Valli
CollaboratorOTHER
Fribourg Emergency Medical Services, Fribourg, Switzerland
CollaboratorOTHER
Réseau Hospitalier Neuchâtelois
CollaboratorOTHER
Morges & Aubonne Emergency Medical Services (CSUMA), Morges and Aubonne, Switzerland
CollaboratorOTHER
Pediatric Clinical Research Platform
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Masking description

Blinding to the direct IV drugs and doses intended for use will be maintained during recruitment to minimize preparation bias. Allocation concealment will be ensured with an allocation software and not released until the paramedics start the scenario. Study team members will be revealed to the participants just before the scenario starts. Paramedics will be unblinded when the simulated scenario starts. Although the intervention could not be masked, all investigators will remain unaware of the outcomes until all data will be unlocked for analysis at the end of the trial. All scenarios will be video-recorded for later analysis. Post-scenario video review will be done without blinding by two reviewers, but undertaken independently and blinded to each other's reviews. In case of disagreement, a third independent evaluator will help reach a consensus. The data analyst will be blinded to treatment allocation.

Intervention model description

Prospective, multicenter, randomized, controlled trial

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* To be paramedic certified * To know how to prepare direct IV drugs * To have previously completed the 5-minute introductory course to the use of the app PedAMINES™ dispensed by the study investigators * Participation agreement

Exclusion criteria

* To have at any time previously used the app PedAMINES™ * To have not undergone the 5-minute introductory course to the use of the app PedAMINES™

Design outcomes

Primary

MeasureTime frameDescription
Medication Dosage Errors20 minutesTo measure in each allocation group the number and percentage of medication dosage containing errors that occur during the sequence from drug preparation to drug injection. We define an emergency medication dose administration error as a failure in drug preparation if at least one of the following errors is committed: a deviation in drug dose of more than 10% from the correct weight dose; inability to calculate drug dosage without guidance help from the paramedic investigator (LB) leading the resuscitation in the room; and/or (because of its clinical relevance) a deviation of more than 10% of the final administered concentration of sodium bicarbonate from the prescribed 4.2% concentration. These errors will be measured both as the percentage deviation from the amount of delivered drug compared with the correct weight dose as prescribed by the physician and the absolute deviations from that dose.

Secondary

MeasureTime frameDescription
Time to Drug Preparation and Time to Drug Delivery20 minutesSecondary outcome will be the elapsed time in seconds between the oral prescription by the physician and a) time to drug preparation completion and b) time to drug delivery by the participant.
Type of Medication ErrorsDuring each of the 4 drug preparations, an average of 20 minutes per drug preparation.Incorrect preparations: a) drug dose deviation \>10% from the correct dose prescribed by the physician, b) drug preparation necessitating assistance (i.e., inability for the nurse to prepare the prescribed drug without the help of a third party), and c) \>10% deviation from the prescribed drug dose in the 4th drug concentration will be reported.
Perceived StressAt preintervention and postintervention, a total of 20 minutes will be used to complete the STAI questionnaire.Participants' self-assessed psychological stress will be measured before and after the intervention (ie. drug preparation) using the Gauthier and Bouchard's French-Canadian adaptation of Spielberger's psychometric State-Trait Anxiety Inventory (STAI) Form Y-1 questionnaire. STAI ranges from 20 to 80, with higher scores being positively correlated with greater stress. Perceived stress will also be assessed by self-assessment using a numerical 10-point Likert visual analogue scale (VAS). Values range from 1 (totally unstressed) to 10 (totally stressed) to avoid neutral answers. The perceived stress before the preparation of the 4 drugs and after the preparation of the 4 drugs will be indicated for each study arm. In other words, the perceived stress will not be given for each of the 4 drugs individually, but as a single value before and a single value after the drug preparation, for both the STAI and the VAS.
Stress Level Measured by Heart Rate Monitoring (Smartwatch).Baseline, recovery, and during each of the 4 drug preparations, a total of 20 minutes per participant will be used to continuously record heart rates on the smartwatch. Maximal HRpeak is the maximum HR across all preparationsThe participants' stress level will be assessed by measuring continuously their heart rate using a Polar A360 smartwatch on their wrist during the resuscitation scenario. Mean delta HR values (difference between HR peak values and baseline HR) will be obtained during some small segments of scenario and correlated to the scenario phases and the preparation methods used.
Unified Theory of Acceptance and Use of Technology (UTAUT) Questionnaire and System Usability Score (SUS)60 minutesUnified Theory of Acceptance and Use of Technology (UTAUT): a 52-item questionnaire distributed in 8 core constructs: 1) perceived usefulness (4 items), 2) perceived ease of use (4 items), 3) task-technology fit (4 items), 4) performance expectancy (3 items), 5) impact on image (2 items), 6) personal innovativeness (3 items), 7) acceptance (3 items), and 8) behavioral intention to use the technology (3 items). Each construct are based on a Likert-type 5-point scale ranging from 1 (strongly disagree) to 5 (strongly agree). Increments are integers between 1 to 5. Min score per construct = 1, max score per construct = 5. The higher the score, the better the acceptance. System Usability Score (SUS): Comprises a 10-item questionnaire with 5 response options for each item, ranging from 1 (strongly disagree) to 5 (strongly agree). The higher the score, the better the usability (ie, 0=very poor perceived usability and 100=excellent perceived usability)

Countries

Switzerland

Participant flow

Participants by arm

ArmCount
Arm A (Mobile Device App)
Paramedics preparing drugs with the help of the mobile device app PedAMINES™. Each paramedic will have to prepare sequentially 4 direct IV emergency drugs with the help of the mobile device app PedAMINES™. Mobile device app (PedAMINES™) 1st drug: To prepare 0.01 mg/kg epinephrine (0.1 mL/kg of 0.1 mg/mL concentration) Mobile device app (PedAMINES™) 2nd drug: To prepare 0.1 mg/kg midazolam (of 5 mg/mL concentration ad 10 mL sodium chloride 0.9%) Mobile device app (PedAMINES™) 3rd drug: To prepare 4 mL/kg dextrose 10% Mobile device app (PedAMINES™) 4th drug: To prepare 1 mmol/kg sodium bicarbonate (of 4.2% = 0.5 mmol/L concentration)
74
Arm B (Conventional Preparation Method)
Paramedics preparing drugs with the help of conventional method. Each paramedic will have to prepare sequentially 4 direct IV emergency drugs with the help of conventional method Conventional method 1st drug: To prepare 0.01 mg/kg epinephrine (0.1 mL/kg of 0.1 mg/mL concentration) Conventional method 2nd drug: To prepare 0.1 mg/kg midazolam (of 5 mg/mL concentration ad 10 mL sodium chloride 0.9%) Conventional method 3rd drug: To prepare 4 mL/kg dextrose 10% Conventional method 4th drug: To prepare 1 mmol/kg sodium bicarbonate (of 4.2% = 0.5 mmol/L concentration)
76
Total150

Baseline characteristics

CharacteristicTotalArm B (Conventional Preparation Method)Arm A (Mobile Device App)
Age, Continuous35.6 years
STANDARD_DEVIATION 7.2
35.5 years
STANDARD_DEVIATION 7.1
35.7 years
STANDARD_DEVIATION 7.3
Attitude toward new technology (5-point Likert scale)
Favorable
41 Participants17 Participants24 Participants
Attitude toward new technology (5-point Likert scale)
Neutral
7 Participants1 Participants6 Participants
Attitude toward new technology (5-point Likert scale)
Strongly favorable
101 Participants57 Participants44 Participants
Attitude toward new technology (5-point Likert scale)
Strongly unfavorable
0 Participants0 Participants0 Participants
Attitude toward new technology (5-point Likert scale)
Unfavorable
1 Participants1 Participants0 Participants
Proficiency in the use of smartphones or tablets (5-point Likert scale)
Agree
86 Participants48 Participants38 Participants
Proficiency in the use of smartphones or tablets (5-point Likert scale)
Disagree
6 Participants3 Participants3 Participants
Proficiency in the use of smartphones or tablets (5-point Likert scale)
Neutral
25 Participants13 Participants12 Participants
Proficiency in the use of smartphones or tablets (5-point Likert scale)
Strongly agree
32 Participants12 Participants20 Participants
Proficiency in the use of smartphones or tablets (5-point Likert scale)
Strongly disagree
1 Participants0 Participants1 Participants
Proficient with intravenous drug preparation (5-point Likert scale)
Agree
41 Participants22 Participants19 Participants
Proficient with intravenous drug preparation (5-point Likert scale)
Disagree
45 Participants30 Participants15 Participants
Proficient with intravenous drug preparation (5-point Likert scale)
Neutral
44 Participants14 Participants30 Participants
Proficient with intravenous drug preparation (5-point Likert scale)
Strongly agree
4 Participants3 Participants1 Participants
Proficient with intravenous drug preparation (5-point Likert scale)
Strongly disagree
16 Participants7 Participants9 Participants
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
Switzerland
150 participants76 participants74 participants
Satisfaction with current drug preparation methods (5-point Likert scale)
Neutral
47 Participants22 Participants25 Participants
Satisfaction with current drug preparation methods (5-point Likert scale)
Satisfied
45 Participants24 Participants21 Participants
Satisfaction with current drug preparation methods (5-point Likert scale)
Unsatisfied
37 Participants19 Participants18 Participants
Satisfaction with current drug preparation methods (5-point Likert scale)
Very satisfied
4 Participants3 Participants1 Participants
Satisfaction with current drug preparation methods (5-point Likert scale)
Very unsatisfied
17 Participants8 Participants9 Participants
Sex: Female, Male
Female
49 Participants23 Participants26 Participants
Sex: Female, Male
Male
101 Participants53 Participants48 Participants
Specific pediatric training (categorical)
No
78 Participants41 Participants37 Participants
Specific pediatric training (categorical)
Yes
72 Participants35 Participants37 Participants
Time since last pediatric cardiopulmonary resuscitation (months, categorical)
12 to <24
22 Participants11 Participants11 Participants
Time since last pediatric cardiopulmonary resuscitation (months, categorical)
≥24
54 Participants28 Participants26 Participants
Time since last pediatric cardiopulmonary resuscitation (months, categorical)
<6
3 Participants2 Participants1 Participants
Time since last pediatric cardiopulmonary resuscitation (months, categorical)
6 to <12
9 Participants5 Participants4 Participants
Time since last pediatric cardiopulmonary resuscitation (months, categorical)
Never
62 Participants30 Participants32 Participants
Time since last preparation of emergency drugs (months, categorical)
12 to <24
32 Participants17 Participants15 Participants
Time since last preparation of emergency drugs (months, categorical)
≥24
36 Participants18 Participants18 Participants
Time since last preparation of emergency drugs (months, categorical)
<6
37 Participants22 Participants15 Participants
Time since last preparation of emergency drugs (months, categorical)
6 to <12
24 Participants7 Participants17 Participants
Time since last preparation of emergency drugs (months, categorical)
Never
21 Participants12 Participants9 Participants
Time since paramedic certification (years, categorical)
>10 years
42 Participants23 Participants19 Participants
Time since paramedic certification (years, categorical)
5 to10 years
55 Participants26 Participants29 Participants
Time since paramedic certification (years, categorical)
<5 years
53 Participants27 Participants26 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 00 / 0
other
Total, other adverse events
0 / 00 / 0
serious
Total, serious adverse events
0 / 00 / 0

Outcome results

Primary

Medication Dosage Errors

To measure in each allocation group the number and percentage of medication dosage containing errors that occur during the sequence from drug preparation to drug injection. We define an emergency medication dose administration error as a failure in drug preparation if at least one of the following errors is committed: a deviation in drug dose of more than 10% from the correct weight dose; inability to calculate drug dosage without guidance help from the paramedic investigator (LB) leading the resuscitation in the room; and/or (because of its clinical relevance) a deviation of more than 10% of the final administered concentration of sodium bicarbonate from the prescribed 4.2% concentration. These errors will be measured both as the percentage deviation from the amount of delivered drug compared with the correct weight dose as prescribed by the physician and the absolute deviations from that dose.

Time frame: 20 minutes

ArmMeasureValue (MEAN)
Arm A (Mobile Device App)Medication Dosage Errors5.7 percentage of medication errors
Arm B (Conventional Preparation Method)Medication Dosage Errors62.8 percentage of medication errors
Secondary

Perceived Stress

Participants' self-assessed psychological stress will be measured before and after the intervention (ie. drug preparation) using the Gauthier and Bouchard's French-Canadian adaptation of Spielberger's psychometric State-Trait Anxiety Inventory (STAI) Form Y-1 questionnaire. STAI ranges from 20 to 80, with higher scores being positively correlated with greater stress. Perceived stress will also be assessed by self-assessment using a numerical 10-point Likert visual analogue scale (VAS). Values range from 1 (totally unstressed) to 10 (totally stressed) to avoid neutral answers. The perceived stress before the preparation of the 4 drugs and after the preparation of the 4 drugs will be indicated for each study arm. In other words, the perceived stress will not be given for each of the 4 drugs individually, but as a single value before and a single value after the drug preparation, for both the STAI and the VAS.

Time frame: At preintervention and postintervention, a total of 20 minutes will be used to complete the STAI questionnaire.

ArmMeasureGroupValue (MEAN)Dispersion
Arm A (Mobile Device App)Perceived StressSTAI preintervention36.1 score on a scaleStandard Deviation 8.1
Arm A (Mobile Device App)Perceived StressSTAI postintervention39.0 score on a scaleStandard Deviation 8.4
Arm A (Mobile Device App)Perceived StressVAS preintervention4.2 score on a scaleStandard Deviation 2.5
Arm A (Mobile Device App)Perceived StressVAS postintervention6.4 score on a scaleStandard Deviation 1.9
Arm B (Conventional Preparation Method)Perceived StressVAS postintervention7.1 score on a scaleStandard Deviation 1.8
Arm B (Conventional Preparation Method)Perceived StressSTAI preintervention35.4 score on a scaleStandard Deviation 8.2
Arm B (Conventional Preparation Method)Perceived StressVAS preintervention3.9 score on a scaleStandard Deviation 2.2
Arm B (Conventional Preparation Method)Perceived StressSTAI postintervention49.8 score on a scaleStandard Deviation 13.2
Secondary

Stress Level Measured by Heart Rate Monitoring (Smartwatch).

The participants' stress level will be assessed by measuring continuously their heart rate using a Polar A360 smartwatch on their wrist during the resuscitation scenario. Mean delta HR values (difference between HR peak values and baseline HR) will be obtained during some small segments of scenario and correlated to the scenario phases and the preparation methods used.

Time frame: Baseline, recovery, and during each of the 4 drug preparations, a total of 20 minutes per participant will be used to continuously record heart rates on the smartwatch. Maximal HRpeak is the maximum HR across all preparations

Population: Outcome measures are expressed as mean \[SD\] beats per minute per study group (with no minimum nor maximum values as heart rates can vary greatly between individuals)

ArmMeasureGroupValue (MEAN)Dispersion
Arm A (Mobile Device App)Stress Level Measured by Heart Rate Monitoring (Smartwatch).Baseline heart rate (HR)79.3 Beats per minuteStandard Deviation 14.4
Arm A (Mobile Device App)Stress Level Measured by Heart Rate Monitoring (Smartwatch).Fourth drug, HRpeak114.1 Beats per minuteStandard Deviation 13.5
Arm A (Mobile Device App)Stress Level Measured by Heart Rate Monitoring (Smartwatch).First drug, HRpeak123.1 Beats per minuteStandard Deviation 9.2
Arm A (Mobile Device App)Stress Level Measured by Heart Rate Monitoring (Smartwatch).Recovery (directly after the intervention, at rest in the absence of drug preparation)79.3 Beats per minuteStandard Deviation 15
Arm A (Mobile Device App)Stress Level Measured by Heart Rate Monitoring (Smartwatch).Third drug, HRpeak120.4 Beats per minuteStandard Deviation 11.4
Arm A (Mobile Device App)Stress Level Measured by Heart Rate Monitoring (Smartwatch).Maximal HRpeak126.1 Beats per minuteStandard Deviation 10.3
Arm A (Mobile Device App)Stress Level Measured by Heart Rate Monitoring (Smartwatch).Second drug, HRpeak121.1 Beats per minuteStandard Deviation 10.9
Arm B (Conventional Preparation Method)Stress Level Measured by Heart Rate Monitoring (Smartwatch).Maximal HRpeak126.0 Beats per minuteStandard Deviation 12.1
Arm B (Conventional Preparation Method)Stress Level Measured by Heart Rate Monitoring (Smartwatch).Baseline heart rate (HR)78.5 Beats per minuteStandard Deviation 12.7
Arm B (Conventional Preparation Method)Stress Level Measured by Heart Rate Monitoring (Smartwatch).First drug, HRpeak124.1 Beats per minuteStandard Deviation 12.2
Arm B (Conventional Preparation Method)Stress Level Measured by Heart Rate Monitoring (Smartwatch).Second drug, HRpeak119.9 Beats per minuteStandard Deviation 13.3
Arm B (Conventional Preparation Method)Stress Level Measured by Heart Rate Monitoring (Smartwatch).Third drug, HRpeak117.9 Beats per minuteStandard Deviation 13.3
Arm B (Conventional Preparation Method)Stress Level Measured by Heart Rate Monitoring (Smartwatch).Fourth drug, HRpeak110.5 Beats per minuteStandard Deviation 13.7
Arm B (Conventional Preparation Method)Stress Level Measured by Heart Rate Monitoring (Smartwatch).Recovery (directly after the intervention, at rest in the absence of drug preparation)76.8 Beats per minuteStandard Deviation 13.7
Secondary

Time to Drug Preparation and Time to Drug Delivery

Secondary outcome will be the elapsed time in seconds between the oral prescription by the physician and a) time to drug preparation completion and b) time to drug delivery by the participant.

Time frame: 20 minutes

ArmMeasureGroupValue (MEAN)
Arm A (Mobile Device App)Time to Drug Preparation and Time to Drug DeliveryTime to drug preparation146.6 seconds
Arm A (Mobile Device App)Time to Drug Preparation and Time to Drug DeliveryTime to drug delivery186.8 seconds
Arm B (Conventional Preparation Method)Time to Drug Preparation and Time to Drug DeliveryTime to drug preparation186.1 seconds
Arm B (Conventional Preparation Method)Time to Drug Preparation and Time to Drug DeliveryTime to drug delivery233.3 seconds
Secondary

Type of Medication Errors

Incorrect preparations: a) drug dose deviation \>10% from the correct dose prescribed by the physician, b) drug preparation necessitating assistance (i.e., inability for the nurse to prepare the prescribed drug without the help of a third party), and c) \>10% deviation from the prescribed drug dose in the 4th drug concentration will be reported.

Time frame: During each of the 4 drug preparations, an average of 20 minutes per drug preparation.

Population: Categories are not mutually exclusive. Various errors can occur during each drug preparation and therefore can be counted more than once

ArmMeasureGroupValue (COUNT_OF_UNITS)
Arm A (Mobile Device App)Type of Medication ErrorsDose deviation >10%16 Drug preparations
Arm A (Mobile Device App)Type of Medication ErrorsIncorrect preparations17 Drug preparations
Arm A (Mobile Device App)Type of Medication ErrorsHelp required0 Drug preparations
Arm A (Mobile Device App)Type of Medication Errors4th drug concentration deviation >10%5 Drug preparations
Arm B (Conventional Preparation Method)Type of Medication Errors4th drug concentration deviation >10%46 Drug preparations
Arm B (Conventional Preparation Method)Type of Medication ErrorsDose deviation >10%172 Drug preparations
Arm B (Conventional Preparation Method)Type of Medication ErrorsHelp required55 Drug preparations
Arm B (Conventional Preparation Method)Type of Medication ErrorsIncorrect preparations191 Drug preparations
Secondary

Unified Theory of Acceptance and Use of Technology (UTAUT) Questionnaire and System Usability Score (SUS)

Unified Theory of Acceptance and Use of Technology (UTAUT): a 52-item questionnaire distributed in 8 core constructs: 1) perceived usefulness (4 items), 2) perceived ease of use (4 items), 3) task-technology fit (4 items), 4) performance expectancy (3 items), 5) impact on image (2 items), 6) personal innovativeness (3 items), 7) acceptance (3 items), and 8) behavioral intention to use the technology (3 items). Each construct are based on a Likert-type 5-point scale ranging from 1 (strongly disagree) to 5 (strongly agree). Increments are integers between 1 to 5. Min score per construct = 1, max score per construct = 5. The higher the score, the better the acceptance. System Usability Score (SUS): Comprises a 10-item questionnaire with 5 response options for each item, ranging from 1 (strongly disagree) to 5 (strongly agree). The higher the score, the better the usability (ie, 0=very poor perceived usability and 100=excellent perceived usability)

Time frame: 60 minutes

ArmMeasureGroupValue (MEAN)Dispersion
Arm A (Mobile Device App)Unified Theory of Acceptance and Use of Technology (UTAUT) Questionnaire and System Usability Score (SUS)Perceived usefulness - UTAUT4.69 score on a scaleStandard Deviation 0.44
Arm A (Mobile Device App)Unified Theory of Acceptance and Use of Technology (UTAUT) Questionnaire and System Usability Score (SUS)Perceived ease of use - UTAUT4.61 score on a scaleStandard Deviation 0.35
Arm A (Mobile Device App)Unified Theory of Acceptance and Use of Technology (UTAUT) Questionnaire and System Usability Score (SUS)Task-technology fit - UTAUT4.49 score on a scaleStandard Deviation 0.54
Arm A (Mobile Device App)Unified Theory of Acceptance and Use of Technology (UTAUT) Questionnaire and System Usability Score (SUS)Performance expectancy - UTAUT4.55 score on a scaleStandard Deviation 0.59
Arm A (Mobile Device App)Unified Theory of Acceptance and Use of Technology (UTAUT) Questionnaire and System Usability Score (SUS)Impact on image - UTAUT4.74 score on a scaleStandard Deviation 0.57
Arm A (Mobile Device App)Unified Theory of Acceptance and Use of Technology (UTAUT) Questionnaire and System Usability Score (SUS)Personal innovativeness - UTAUT4.14 score on a scaleStandard Deviation 0.58
Arm A (Mobile Device App)Unified Theory of Acceptance and Use of Technology (UTAUT) Questionnaire and System Usability Score (SUS)Acceptance - UTAUT4.32 score on a scaleStandard Deviation 0.61
Arm A (Mobile Device App)Unified Theory of Acceptance and Use of Technology (UTAUT) Questionnaire and System Usability Score (SUS)Behavioral intention to use the technology - UTAUT4.81 score on a scaleStandard Deviation 0.34
Arm A (Mobile Device App)Unified Theory of Acceptance and Use of Technology (UTAUT) Questionnaire and System Usability Score (SUS)SUS89.7 score on a scaleStandard Deviation 8.7

Source: ClinicalTrials.gov · Data processed: Mar 1, 2026