Studien om koffein, postoperativt delirium og endringer i utfall etter kirurgi (CAPACHINOS-2)
The objective of this study is to test the effects of caffeine on neurocognitive and clinical recovery after major surgery. Specifically, this trial tests the primary hypothesis that caffeine will reduce the incidence of postoperative delirium.
Studieoversikt
Status
Intervensjon / Behandling
Detaljert beskrivelse
Delirium is a syndrome characterized by failure of basic cognitive functions that affects approximately 20-50% of older surgical patients. Delirium during surgical recovery is associated with increased mortality, cognitive and functional decline, and prolonged hospitalization. In fact, 3-year survival rates for acutely hospitalized patients with delirium, and subsyndromal delirium, are both less than 50%. Older age is predictive of delirium after surgery, and with aging surgical populations, the incidence of postoperative delirium and related complications are likely to increase in the coming years.
Caffeine represents a novel, neurobiologically informed candidate intervention for reducing risk of early postoperative delirium. Caffeine promotes arousal via adenosine receptor antagonism and improves cognitive function concurrent with increased cortical cholinergic tone. Our preliminary data suggest that caffeine reduces risk of postanesthesia care unit (PACU) delirium in adult non-cardiac surgery patients by optimizing cortical dynamics for cognition. Caffeine also optimizes key neurocognitive processes that support information processing and may improve other, related aspects of clinical recovery, such as rebound headache in habitual caffeine users. The objective of this trial is to thus test the effects of caffeine on neurocognitive and clinical recovery after major surgery. Specifically, the primary hypothesis is that caffeine will reduce the incidence of postoperative delirium. The secondary objectives are to (1) test whether caffeine positively impacts the quality of postoperative recovery via validated patient-reported measures and (2) identify neural correlates of delirium and Mild Cognitive Impairment via advanced electroencephalographic (EEG) analysis.
Studietype
Registrering (Faktiske)
Fase
- Fase 2
Kontakter og plasseringer
Studiesteder
-
-
Michigan
-
Ann Arbor, Michigan, Forente stater, 48109
- Michigan Medicine
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
Inclusion Criteria:
- Adult (>/= 70 years old) undergoing non-cardiac, non-intracranial neurologic, non-major vascular surgery requiring general anesthesia with a planned admission for at least 48 hours.
- Stated willingness to comply with all study procedures and availability for the duration of the study.
- Provision of signed and dated informed consent form.
Exclusion Criteria:
- Emergency surgery
- Outpatient surgery
- Severe cognitive impairment precluding the capacity for informed consent
- Seizure disorder history
- Intolerance or allergy to caffeine (based on subjective reporting or objective documentation)
- Weight >130 kg (as a 3 mg/kg dose would approach the upper limit of daily intake recommended by the FDA)
- Enrollment in conflicting research study
- Patients in acute liver failure
- Acute kidney injury preoperatively
- Diagnosis of pheochromocytoma
- Active carcinoid syndrome
- Severe audiovisual impairment
- Non-English speaking
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Firemannsrom
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Placebo komparator: Control
Prepared intravenous piggyback solution of 5 percent dextrose water at multiple postoperative time points over a 30-minute infusion period. |
Dextrose 5% in water |
|
Eksperimentell: Low-dose Caffeine
Prepared intravenous low-dose caffeine citrate (1.5 mg/kg) at multiple postoperative time points over a 30-minute infusion period. |
Low-dose caffeine citrate (1.5 mg/kg) High-dose Caffeine citrate (3 mg/kg) |
|
Eksperimentell: High-dose Caffeine
Prepared intravenous high-dose caffeine citrate (3 mg/kg) at multiple postoperative time points over a 30-minute infusion period. |
Low-dose caffeine citrate (1.5 mg/kg) High-dose Caffeine citrate (3 mg/kg) |
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Delirium
Tidsramme: Day of surgery through afternoon of postoperative day three
|
Any positive delirium screen (yes/no) as determined by the long-form Confusion Assessment Method (CAM), and supplemented by a validated daily chart review method. |
Day of surgery through afternoon of postoperative day three
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Delirium Severity
Tidsramme: Day of surgery through afternoon of postoperative day three
|
For all participants screened for delirium, the associated severity score will be recorded using the Confusion Assessment Method Long Form Severity Score (CAM-S) (n, 0-19, with higher number indicating more severe delirium) |
Day of surgery through afternoon of postoperative day three
|
|
Delirium Duration
Tidsramme: Day of surgery through afternoon of postoperative day three
|
The cumulative number of days (n) with a positive delirium screen will be calculated for all participants |
Day of surgery through afternoon of postoperative day three
|
|
Patient-Reported Quality of Recovery
Tidsramme: Preoperative baseline through postoperative day three afternoon
|
Assessed via the 15-item Quality of Recovery Score (n, 0-150, with higher number indicating better quality of recovery from the patient perspective) |
Preoperative baseline through postoperative day three afternoon
|
|
Sedation
Tidsramme: Preoperative baseline through postoperative day three afternoon
|
Any positive screen based on the Richmond Agitation Sedation Scale (RASS; n, -5 to +4). Scores from -5 to -2 will count as a positive screen for sedation. |
Preoperative baseline through postoperative day three afternoon
|
|
Agitation
Tidsramme: Preoperative baseline through postoperative day three afternoon
|
Any positive screen based on the Richmond Agitation Sedation Scale (RASS; n, -5 to +4). Scores from +2 to +4 will count as a positive screen for agitation |
Preoperative baseline through postoperative day three afternoon
|
|
Headache
Tidsramme: Preoperative baseline through postoperative day three afternoon
|
Headache severity will be assessed via 10-centimeter visual analog scale (0-100 mm, with higher score indicating more severe headache) |
Preoperative baseline through postoperative day three afternoon
|
|
Cumulative Opioid Consumption
Tidsramme: Day of surgery through postoperative day three afternoon
|
Postoperative opioid consumption, oral morphine equivalents (mg) |
Day of surgery through postoperative day three afternoon
|
Andre resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Anesthetic Emergence
Tidsramme: Duration of time from surgical dressing completion to anesthetic emergence (min); generally expected to be between 10 and 60 minutes
|
Time (minutes) from surgical closure to extubation |
Duration of time from surgical dressing completion to anesthetic emergence (min); generally expected to be between 10 and 60 minutes
|
|
Pulmonary Complications
Tidsramme: From extubation until end of postanesthesia care unit stay
|
Composite outcome (yes/no) of any of the following: airway adjunct use, unplanned continuous positive airway pressure device, unplanned humidified high-flow oxygen, need for bag-mask ventilation, or reintubation |
From extubation until end of postanesthesia care unit stay
|
|
Hospital Length of Stay
Tidsramme: Morning of surgery until day of hospital discharge, up to 30 days
|
Total number of days (n) spent in the hospital, up to 30 days |
Morning of surgery until day of hospital discharge, up to 30 days
|
|
Discharge Disposition
Tidsramme: Day of hospital discharge, up to 30 days
|
Proportion of patients in each group (%) discharged somewhere other than home (e.g., Long-Term Care Facility), up to 30 days |
Day of hospital discharge, up to 30 days
|
|
30-Day Cognitive Function
Tidsramme: 30 days after hospital discharge
|
Cognitive function score based on the Montreal Cognitive Assessment (n, 0-30, with higher scores reflecting higher cognitive function) |
30 days after hospital discharge
|
|
30-Day Physical Function
Tidsramme: 30 days after hospital discharge
|
Physical function score based on the Patient Reported Outcomes Measurement Information System (PROMIS) Physical Function 10a score (n, 10-50, with higher score indicating better physical function) |
30 days after hospital discharge
|
Samarbeidspartnere og etterforskere
Sponsor
Samarbeidspartnere
Etterforskere
- Hovedetterforsker: Phillip Vlisides, MD, Assistant Professor of Anesthesiology
Publikasjoner og nyttige lenker
Generelle publikasjoner
- Vlisides PE, Li D, McKinney A, Brooks J, Leis AM, Mentz G, Tsodikov A, Zierau M, Ragheb J, Clauw DJ, Avidan MS, Vanini G, Mashour GA. The Effects of Intraoperative Caffeine on Postoperative Opioid Consumption and Related Outcomes After Laparoscopic Surgery: A Randomized Controlled Trial. Anesth Analg. 2021 Jul 1;133(1):233-242. doi: 10.1213/ANE.0000000000005532.
- Kim H, McKinney A, Brooks J, Mashour GA, Lee U, Vlisides PE. Delirium, Caffeine, and Perioperative Cortical Dynamics. Front Hum Neurosci. 2021 Dec 20;15:744054. doi: 10.3389/fnhum.2021.744054. eCollection 2021.
- Vlisides PE, Ragheb J, McKinney A, Mentz G, Runstadler N, Martinez S, Jewell E, Lee U, Vanini G, Schmitt EM, Inouye SK, Mashour GA. Caffeine, Postoperative Delirium And Change In Outcomes after Surgery (CAPACHINOS)-2: protocol for a randomised controlled trial. BMJ Open. 2023 May 15;13(5):e073945. doi: 10.1136/bmjopen-2023-073945.
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
- Nevrologiske manifestasjoner
- Hjernesykdommer
- Sykdommer i sentralnervesystemet
- Sykdommer i nervesystemet
- Psykiske lidelser
- Postoperative komplikasjoner
- Patologiske prosesser
- Forvirring
- Nevroatferdsmanifestasjoner
- Kognisjonsforstyrrelser
- Demens
- Tauopatier
- Nevrodegenerative sykdommer
- Delirium
- Patologiske tilstander, tegn og symptomer
- Tegn og symptomer
- Postoperative kognitive komplikasjoner
- Emergence Delirium
- Kognitiv dysfunksjon
- Alzheimers sykdom
- Nevrokognitive lidelser
- Koffeincitrat
Andre studie-ID-numre
- HUM00218290
- R01AG075005 (U.S. NIH-stipend/kontrakt)
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
IPD-planbeskrivelse
Clinical and electroencephalographic data will be preserved and made available for sharing. Data will be saved in various formats, such as comma-separated values (CSV), open document format (ODF), and European Data Format (EDF) for waveform data. Software programs designed to accommodate electroencephalographic waveform data (e.g., MATLAB) will be required for data access and analysis. Specific software and coding recommendations can be made available upon data sharing request.
Any data not permitted to be shared, as specified in written informed consent documents, will be withheld. Likewise, no data will be shared that may compromise the safety or privacy of participants, and no data will be shared that would violate local, state, or federal laws or policies (including the Health Insurance Portability and Accountability Act). All data will be de-identified.
IPD-delingstidsramme
Scientific data will be made available after primary trial manuscripts (for both clinical and electroencephalographic data) are accepted for publication. Data will be made available for as long as possible in compliance with National Institutes of Health and University of Michigan policies.
Tilgangskriterier for IPD-deling
Data will be shared upon execution of Data Use Agreements in compliance with University of Michigan policies and procedures. Interested researchers will need to contact the study PI (Dr. Vlisides) for obtaining data via Data Use Agreement. All data will be shared upon reasonable request after primary trial manuscripts are published.
IPD-deling Støtteinformasjonstype
- STUDY_PROTOCOL
- SEVJE
- ICF
Legemiddel- og utstyrsinformasjon, studiedokumenter
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