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Evaluating Intervention Allocation Policies for Reducing Hospital Readmissions at Michigan Medicine

1 juli 2026 uppdaterad av: Jenna Wiens, University of Michigan
The researchers are investigating if using a risk-based prediction score or benefit-based prediction score to allocate transition of care (TOC) interventions is more effective in reducing the rate of unplanned hospital readmissions or death within 30 days of hospital discharge.

Studieöversikt

Status

Har inte rekryterat ännu

Betingelser

Intervention / Behandling

Detaljerad beskrivning

The intervention affects only how the TOC bundle is assigned and does not alter how the telephone calls are delivered. For example, both care navigators and pharmacists receive the same patient information and follow the same call procedures before and after the intervention.

Individuals with predicted benefits greater than the 40% quantile are assigned the phone call bundle while others were not assigned the bundle. During the trial the 40% quantile will be dynamically determined using discharge data from the previous week.

Studietyp

Interventionell

Inskrivning (Beräknad)

5000

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

Studieorter

  • Förenta staterna
    • Michigan
      • Ann Arbor, Michigan, Förenta staterna, 48109
        • The University of Michigan
        • Kontakt:
        • Huvudutredare:
          • Jenna Wiens, PhD

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Vuxen
  • Äldre vuxen

Tar emot friska volontärer

Nej

Beskrivning

Inclusion Criteria:

  • Patient meets the primary care established rule at Michigan Medicine (MM), AND
  • Patient's primary care physician (PCP) Department is one of our General Medicine or Family Medicine or Medical-Pediatrics departments, AND
  • Inpatient class is Inpatient or Observation or Obs Greater than 48 hours or Outpatient in a Bed or Extended Recovery or Hospital Care at Home Inpatient or Hospital Care at Home Observation, AND
  • Discharged from General Medicine or Family Medicine or Medicine Observation services, AND
  • Disposition of home or home with home care

Exclusion Criteria:

  • Physician Organization of Michigan Accountable Care Organization (POM ACO)
  • Sepsis patients (had a diagnosis of sepsis during admission, active or resolved on the hospital problem list)

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Förebyggande
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Trippel

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Aktiv komparator: Control Arm/Standard of care
The Control Arm, in which patients with a LACE Index score of 9 or greater on the day of hospital discharge will receive TOC interventions. This is the currently implemented allocation policy at Michigan Medicine. In this setting, approximately 60% of patients receive the TOC intervention. Thus, we will use a threshold of the 40th percentile for assigning the TOC telephone call bundle. Note that to maintain the 60% intervention rate throughout the study, the score threshold (LACE 9 or greater) will be monitored and dynamically adjusted. The LACE Index has four components: Length of Stay (L), Acuity of the Admission (A), Comorbidities (C), and Emergency Department Visits (E), and estimates the risk of a patient having an unplanned hospital readmission after being discharged from their current encounter.
Övrig: The LACE Index TOC assignment
The LACE Index has four components: Length of Stay (L), Acuity of the Admission (A), Comorbidities (C), and Emergency Department Visits (E), and estimates the risk of a patient having an unplanned hospital readmission after being discharged from their current encounter.
Experimentell: Experimental Arm
The Experimental Arm, in which Causal-Hospital reAdmission Risk Prediction Model (C-HARP) scores will be used to allocate TOC interventions. C-HARP is a machine learning model that leverages routinely collected and stored patient data in the electronic health record (EHR) to estimate how much a patient will benefit from receiving MM's TOC telephone call bundle. The assignment threshold will be defined as the 40th percentile of C-HARP scores within the most recent 100 days of the target cohort, so that approximately 60% of patients are assigned the telephone call bundle. Based on current retrospective data, this threshold corresponds to a C-HARP score of 18.
Enhet: C-HARP TOC assignment
The Experimental Arm will allocate TOC interventions based on scores generated by the Causal-Hospital reAdmission Risk Prediction Model (C-HARP), C-HARP is a linear model that leverages routinely collected and stored patient data in the electronic health record (EHR) to estimate how much a patient will benefit from receiving Michigan Medicine's (MM's) TOC telephone call bundle.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
The number of 30-day all-cause unplanned readmission or death
Tidsram: 30 calendar days following the index discharge
An unplanned readmission is defined as any not canceled inpatient, outpatient, or observation hospital admission with an admission type not recorded as "scheduled." Deaths are determined using the Michigan Death Index and matched to patient records using Social Security numbers.
30 calendar days following the index discharge

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
The number of 90-day all-cause unplanned readmission or death
Tidsram: 90 calendar days following the index discharge
An unplanned readmission is defined as any not canceled inpatient, outpatient, or observation hospital admission with an admission type not recorded as "scheduled." Deaths are determined using the Michigan Death Index and matched to patient records using Social Security numbers.
90 calendar days following the index discharge
Time to first 90-day all-cause unplanned readmission or death
Tidsram: 90 calendar days following the index discharge
An unplanned readmission is defined as any not canceled inpatient, outpatient, or observation hospital admission with an admission type not recorded as "scheduled." Deaths are determined using the Michigan Death Index and matched to patient records using Social Security numbers.
90 calendar days following the index discharge
TOC telephone call bundle completion (care navigator call)
Tidsram: 5 calendar days after discharge.

A care navigator call is considered complete if a completed call record is observed within 5 calendar days after discharge.

Calls are considered incomplete if the corresponding completed call record occurs after an all-cause unplanned readmission.
5 calendar days after discharge.
TOC telephone call bundle completion (clinical pharmacist call)
Tidsram: 14 calendar days after discharge

A clinical pharmacist call is considered complete if a completed call record is observed within 14 calendar days after discharge.

Calls are considered incomplete if the corresponding completed call record occurs after an all-cause unplanned readmission.
14 calendar days after discharge
TOC telephone call bundle completion (both calls)
Tidsram: 14 calendar days after discharge

Completed the care navigator call and completed the clinical pharmacist call.

Calls are considered incomplete if the corresponding completed call record occurs after an all-cause unplanned readmission.
14 calendar days after discharge

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

University of Michigan

Utredare

  • Studiestol: Jenna Wiens, PhD, University of Michigan

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Beräknad)

1 juli 2026

Primärt slutförande (Beräknad)

1 augusti 2027

Avslutad studie (Beräknad)

1 september 2027

Studieregistreringsdatum

Först inskickad

1 juli 2026

Först inskickad som uppfyllde QC-kriterierna

1 juli 2026

Första postat (Faktisk)

8 juli 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

8 juli 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

1 juli 2026

Senast verifierad

1 juli 2026

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • HUM00282075

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