Acute Risk Monitoring for Oncology Therapy Regimen
ARMOR
2 other identifiers
observational
4,740
1 country
1
Brief Summary
Patients undergoing outpatient infusion systemic therapy for cancer are at risk for potentially preventable, unplanned acute care in the form of emergency department (ED) visits and hospitalizations. These events impact patient outcomes, treatment decisions, and healthcare costs. To address this need, the Centers for Medicare \& Medicaid Services developed the chemotherapy measure (OP-35). Recent randomized controlled studies indicate that electronic health record (EHR)-based machine learning (ML) approaches accurately direct supportive care to reduce acute care during radiotherapy. This study aims to develop and prospectively validate ML approaches to predict the risk of OP-35 qualifying, potentially preventable, acute care events within 30 days of infusion systemic therapy.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jul 2017
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 1, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 31, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
March 31, 2024
CompletedFirst Submitted
Initial submission to the registry
May 15, 2026
CompletedFirst Posted
Study publicly available on registry
May 22, 2026
CompletedMay 22, 2026
May 1, 2026
6.8 years
May 15, 2026
May 15, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Area under the receiver operating characteristic curve (AUROC) for OP-35 prediction model.
UCSF patients receiving infusion systemic therapy had clinical data incorporated into machine learning (ML) models to predict risk of Centers for Medicare \& Medicaid Services Chemotherapy Measure (OP-35) qualifying acute care events within 30 days of infusion. Models included variables such as cancer diagnosis, therapeutic agents, and laboratory values. Three ML approaches were employed to train models in predicting OP-35 events. Models were trained and retrospectively validated on data from July 7, 2017, to February 11, 2021, and prospectively validated on 2 cohorts: April 17, 2023, to October 29, 2023 (PV1) and February 19, 2024, to March 31, 2024 (PV2) to generate a validation AUROC. The initial prospective validation occurred over a pre-planned period with the assumption of a 2% event rate, based on the model development data, with an alpha of 0.05 and 84% power to detect an AUROC of 0.75, requiring a sample size of at least 8000 infusions.
Up to 6.75 years
Study Arms (1)
Patients receiving cancer therapy at University of California, San Francisco (UCSF)
All adults undergoing systemic cancer-related therapy from July 2017 to March 2024 at any UCSF outpatient, infusion center with available OP-35 data.
Interventions
Retrospective chart reviews for data collection will be conducted.
Eligibility Criteria
Adult patients receiving care for cancer
You may qualify if:
- Patients 18 years or older diagnosed with cancer who receive care at UCSF and/or one of the UCSF affiliate locations.
You may not qualify if:
- Patients under the age of 18.
- Patients receiving care as part of a clinical trial.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of California, San Franciscolead
- Conquer Cancer Foundationcollaborator
- National Cancer Institute (NCI)collaborator
Study Sites (1)
University of California, San Francisco
San Francisco, California, 94143, United States
MeSH Terms
Conditions
Study Officials
- PRINCIPAL INVESTIGATOR
Julian Hong, MD, MS
University of California, San Francisco
Study Design
- Study Type
- observational
- Observational Model
- CASE ONLY
- Time Perspective
- OTHER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 15, 2026
First Posted
May 22, 2026
Study Start
July 1, 2017
Primary Completion
March 31, 2024
Study Completion
March 31, 2024
Last Updated
May 22, 2026
Record last verified: 2026-05
Data Sharing
- IPD Sharing
- Will share
De-identified data may be shared with study collaborators during the course of the study.