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CALYPSO Pilot Study: Machine Learning Based Predictions of Surgical Complications

Pilot Study for a Clinical Analytical Platform for Surgical Outcomes

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02828475
Acronym
CALYPSO
Enrollment
200
Registered
2016-07-11
Start date
2016-06-30
Completion date
2017-02-28
Last updated
2018-07-03

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

Conditions

Complication of Surgical Procedure, Postoperative Infection

Brief summary

This is a pilot study of surgical patients whose postoperative care will be augmented with a personalized risk prediction platform (CALYPSO app).

Detailed description

CALYPSO is a software platform that uses machine learning techniques to create personalized risk predictions for postoperative complications. Individual risk factors are then linked to best-practice interventions tailored to the individual patient. The investigator aims to test the hypothesis that using CALYPSO-augmented postoperative care will reduce complication rates in patients undergoing elective general surgery. Subjects undergoing surgery will be assigned to the CALYPSO intervention in the postoperative period.

Interventions

BEHAVIORALStandard Care

Previous standard of care based on surgeon judgement alone.

OTHERCALYPSO

Software platform of machine-learning based predictive models of surgical complication.

Sponsors

Duke University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

* \>18 years of age * Undergoing elective surgery * Undergoing high risk colon, rectal, pancreas, gastric surgery with predicted length of stay greater or equal to 3 days

Exclusion criteria

* Surgeries with less than 3 days of anticipated length of stay (e.g. stoma takedown)

Design outcomes

Primary

MeasureTime frame
Thirty Day Overall Complications30 days after surgery

Secondary

MeasureTime frameDescription
Wound Complications30 days after surgeryIncludes superficial, deep, organ space infections, and wound dehiscence
Cardiac Complications30 days after surgeryincludes myocardial infarction, cardiac arrest
Respiratory Complications30 days after surgeryincludes unplanned reintubation, pneumonia, failure to wean from ventilator \>48 hours after surgery
Thrombotic complications30 days after surgeryincludes deep vein thrombosis, pulmonary emobolism
Renal Complications30 days after surgeryincludes acute renal failure, renal failure requiring dialysis
Thirty Day Mortality30 days after surgery
Neurologic complications30 days after surgeryincludes stroke, peripheral nerve injury, coma
Septic complications30 days after surgeryincludes sepsis and septic shock
Unplanned reoperation30 days after surgery
unplanned readmission30 days after surgery
bleeding complicationsup to 72 hours after surgeryneeding at least 1 unit of pRBC
urinary tract infections30 days after surgery

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026