Vital-signs-integrated Patient-assisted Intravenous Opioid Analgesia (VPIAmorphine)

KK Women's and Children's Hospital

Status and phase: Active, not recruiting; Phase 2

Conditions: Respiratory Depression

Treatments: Drug: Morphine; Device: VPIA analgesia

Study type: Interventional

Funder types: Other

Identifiers

NCT02804022

2015/3062

Details and patient eligibility

About

This is a closed-loop system which is embodied in a novel and intelligent algorithm that takes into account patients' vital signs. The system allows better and responsive titration of personalized pain relief together with non-invasive physiological monitoring that measures oxygenation, breathing and heart rate continuously.

Full description

A glaring safety gap in the administration of commonplace Patient Controlled Analgesia (PCA) opioids unfortunately exists. A significant proportion of patients may suffer from respiratory depression with the use of PCA opioids and it is imperative to discover solutions to improve the safety of PCA opioids, therein improving medication safety, enhancing quality of postoperative care and providing economic cost savings. Currently, no continuous monitoring system that integrates an intelligent decision making response exists.

The investigators primary aim is to develop and commercialise a Vital-signs-integrated (using oxygen saturation, respiratory rate, heart rate) Patient-assisted Intravenous opioid Analgesia (VPIA) that can be integrated into the hospital-wide monitoring systems is capable of making intelligent decision making responses to bridge the PCA safety gap within 12 months.

This VPIA delivery system will be a closed-loop system for safety and efficacy. It will be integrated with continuous vital signs monitoring, and provide appropriate response to breach of safety parameters. It will be part of a larger surveillance system that provides tiered medical and nursing alerts to safety parameters.

Enrollment: 20 patients

Sex: Female

Ages: 21 to 70 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Age 21-70 years old, female
• Healthy participants who are American Society of Anesthesiologists physical status 1 and 2 (with well controlled medical problems)
• Undergoing elective surgery with the intent of using postoperative PCA with morphine for postoperative analgesia

Exclusion criteria

• Allergy to morphine
• With significant respiratory disease and obstructive sleep apnea
• Unwilling to place oxygen saturation monitoring devices during study period
• Unable to comprehend the use of patient controlled analgesia
• Pregnant

Trial design

Primary purpose: Treatment

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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20 participants in 1 patient group

VPIA analgesia system

Experimental group

Description:

Vital-signs-integrated patient-assisted intravenous opioid analgesia system (VPIA). The vital signs (oxygen saturation, respiratory rate, heart rate) will be close monitored when patients is using VPIA pump. The drug used is intravenous morphine (1mg per milligram) with bolus of 1 mg.

Treatment:

Device: VPIA analgesia

Drug: Morphine