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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03736005
Other study ID # KRATOSProtocolv1.2
Secondary ID
Status Completed
Phase
First received
Last updated
Start date December 19, 2018
Est. completion date January 1, 2022

Study information

Verified date September 2022
Source Queen Mary University of London
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

This study aims to determine changes in kidney function during and after critical illness, comparing conventional creatinine based methods with the gold standard to accurately establish the presence of new or worsened chronic kidney disease. In addition, investigators will assess the confounding effect of muscle wasting on the conventional assessment of kidney function and investigate the information that measures of kidney function may contribute to the assessment of musculoskeletal health after critical illness.


Description:

More people than ever are surviving life-threatening illnesses such as major trauma. However, until now doctors and researchers have focused more on improving short term survival than on the serious, long-term complications experienced by survivors of critical illness. In response, the National Institute for Health and Care Excellence (NICE) and patient-clinician partnerships such as the James Lind Alliance, have now prioritised research into the diagnosis, follow-up and treatment of critical care survivors. Development of chronic kidney disease and persistent muscle weakness are two commonly encountered complications which significantly impact long-term health and wellbeing after critical illness. Worsening of kidney function strongly predisposes to development of heart disease, premature death or need for long-term dialysis. Similarly, the muscle wasting experienced by almost all survivors of critical illness can result in persistent, life changing limitations to daily living, inability to work and decreased quality of life. Importantly, the human and economic consequences of critical illness may be particularly profound in major trauma victims who are often young and previously healthy. In this project, investigators will aim to simultaneously measure changes in kidney function and muscle mass after critical illness allowing researchers to understand how these processes interact in affecting longer-term patient outcomes. The investigators will recruit 62 patients, 31 admitted to intensive care after major trauma and 31 admitted for other reasons. Complementary methods will be used to accurately monitor muscle mass and kidney function. Six months after discharge from hospital, patient's ability to manage their daily activities and quality of life will be assessed alongside measurements of muscle mass, strength and kidney function. The study will be performed at the Royal London Hospital, an internationally renowned centre for critical care and trauma research.


Recruitment information / eligibility

Status Completed
Enrollment 40
Est. completion date January 1, 2022
Est. primary completion date December 1, 2021
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Major trauma cohort: Patients =18y admitted to ICU and anticipated to be mechanically ventilated for =48 hours with a primary admission diagnosis of major trauma. - Non-trauma cohort: Patients =18y admitted to ICU and anticipated to be mechanically ventilated for =48 hours without a primary admission diagnosis of major trauma. Exclusion Criteria: - Death or discharge from hospital considered highly likely by treating physician within 7 days of ICU admission. - Any of the following conditions: major traumatic brain injury (Abbreviated Injury Scale head injury score = 5), spinal cord injury with paralysis, lower limb amputation, end stage renal disease or disseminated cancer, lack of independence with activities of daily living or non-ambulatory status prior to admission. (Rationale - exclusion of factors where type of injury or comorbid disease will overwhelming determine functional or renal outcomes.)

Study Design


Intervention

Other:
Exposure of significant critical illness
Exposure. Observational study with all patients invited to follow-up clinic for kidney, muscle and functional assessments.

Locations

Country Name City State
United Kingdom Royal London Hospital London

Sponsors (1)

Lead Sponsor Collaborator
Queen Mary University of London

Country where clinical trial is conducted

United Kingdom, 

References & Publications (1)

Ravn B, Prowle JR, Mårtensson J, Martling CR, Bell M. Superiority of Serum Cystatin C Over Creatinine in Prediction of Long-Term Prognosis at Discharge From ICU. Crit Care Med. 2017 Sep;45(9):e932-e940. doi: 10.1097/CCM.0000000000002537. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Change in estimated Glomerular Filtration Rate (eGFR) between creatinine- and cystatin C-based estimates. At 7 days after ICU discharge.
Secondary Rectus Femoris muscle wasting Change in cross sectional area of Rectus Femoris assessed via ultrasound From ICU admission (day 1 to 10) and 7 days and 6 months after ICU discharge. Time period up to and including 18 months from recruitment.
Secondary Diagnosis of a negative Nitrogen Balance Serum and urinary urea measurements aggregated as net nitrogen balance. From ICU admission (day 1 to 10) and 7 days after ICU discharge.
Secondary Respiratory muscle wasting Change in cross sectional area of intercostal muscle, change in diaphragm thickness From ICU admission (day 1 to 10) and 7 days and 6 months after ICU discharge.
Secondary Loss of muscle quality Change in Rectus femoris muscle echogenecity From ICU admission (day 1 to 10) and 7 days and 6 months after ICU discharge.
Secondary Loss of functional capacity Change in Functional Independence Measure 7 days and 6 months after ICU discharge.
Secondary Diagnosis of Anxiety of Depression Change in Hospital Anxiety and Depression Scale 7 days and 6 months after ICU discharge.
Secondary Diagnosis of Sarcopaenia Assessed using bioelectrical impedance analysis, change in cross sectional area of abdominal skeletal muscle, From ICU admission (day 1 to 10) and 7 days and 6 months after ICU discharge.
Secondary Diagnosis of Intensive care unit acquired weakness Assessed using MRC Sum score From ICU admission (day 1 to 10) and 7 days and 6 months after ICU discharge.
Secondary Diagnosis of Intensive care unit acquired weakness Assessed using hand grip strength. From ICU admission (day 1 to 10) and 7 days and 6 months after ICU discharge.
Secondary Change in quality of life Change in Euroqol 5d 5L (European quality of life group, quality of life instrument version 5D5L) pre-admission baseline then 7 days and 6 months after ICU discharge.
Secondary Change in walking capacity Change in Six minute walk test 7 days and 6 months after ICU discharge.
Secondary Diagnosis of chronic kidney disease Diagnosis using creatinine clearance, iohexol and serum creatinine derived eGFR 6 months after ICU discharge
Secondary Diagnosis of non-recovery of eGFR to baseline Diagnosis using creatinine clearance, iohexol and serum creatinine derived eGFR From ICU admission (day 3 to 10) and 7 days after ICU discharge.
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