Clinical Trial Details
— Status: Not yet recruiting
Administrative data
NCT number |
NCT05853484 |
Other study ID # |
NL83612.042.23 |
Secondary ID |
|
Status |
Not yet recruiting |
Phase |
N/A
|
First received |
|
Last updated |
|
Start date |
September 1, 2024 |
Est. completion date |
August 1, 2025 |
Study information
Verified date |
May 2024 |
Source |
University Medical Center Groningen |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Interventional
|
Clinical Trial Summary
Chronic liver disease eventually results in liver cirrhosis and is associated with an
increasing deterioration in patients' physical fitness. As there is currently limited
evidence regarding the effects of a home-based exercise program in patients with liver
cirrhosis awaiting OLT, and physical frailty rates are particularly high in this patient
population, this group has the investigators specific interest. The primary aim of this study
is to assess the effect of a semi-supervised home-based bimodal lifestyle program, consisting
of interval and endurance training and peripheral resistance training on aerobic capacity in
patients with liver cirrhosis awaiting OLT
Description:
Rationale: Patients with liver cirrhosis who are on the waiting list for orthotopic liver
transplantation (OLT) encounter all key components of physical frailty, i.e., decreased
functional capacity, impaired aerobic capacity and sarcopenia, which all lead to fatigue,
diminished quality of life, increased hospitalization and pre- and post-transplantation
morbidity and mortality. An exercise program in combination with nutritional support has
proven to improve all key components of physical frailty and quality of life in various
surgical patient populations. Although small studies have demonstrated similar positive
effects of exercise training in patients on the waiting list for OLT, to date no large
studies supported the effects of exercise training and nutritional support on (the longevity
of) the increase in aerobic capacity in OLT patients.
Objective: The primary objective of this study is to assess the effect of a semi-supervised
home based bimodal lifestyle intervention on aerobic capacity (measured by VO2 at the
Ventilatory anaerobic threshold (VAT) and VO2peak in ml/kg/min) in patients with liver
cirrhosis on the waiting list for OLT. Secondary objectives are to evaluate individual
patients' responses to the bimodal lifestyle intervention on sarcopenia, anthropometry,
functional mobility, quality of life, perceived fatigue, incidence of hepatic encephalopathy,
number of unplanned hospital admissions, change in liver frailty index score and change in
microbiome composition at six, 12 and 18 weeks, or until transplantation. Finally, the
feasibility (participation rate, reasons for non-participation, adherence/compliance, dropout
rate, reasons for dropout and adverse event) will be assessed.
Study design: This study is an investigator-initiated, single center, single arm, prospective
clinical trial. It will take place at the University Medical Center Groningen, the
Netherlands. Eligible patients will participate in the bimodal lifestyle program, which
comprises two home-based training periods of six-weeks each (12 weeks training in total, or
until transplantation). After 18 weeks (i.e., six weeks after termination of the program) a
final assessment will take place to evaluate the longevity of the expected effects of the
lifestyle program on predefined study outcomes.
Study population: Adult patients diagnosed with liver cirrhosis and screened for OLT, with a
VO2 at the VAT ≤13ml/kg/min and/or VO2peak ≤18ml/kg/min will be screened for potential
eligibility. Patients with no contraindications to physical exercise training and the ability
to work out on a cycle ergometer can participate in the bimodal lifestyle intervention.
Intervention: Patients will participate in a home-based bimodal lifestyle program. The
program comprises semi-supervised high intensity interval and endurance training on an
advanced cycle ergometer (Lode Corival Home+ , Lode BV, Groningen, The Netherlands), combined
with nutritional support consisting of protein, vitamin and mineral supplementation.
Moreover, to improve functional mobility and muscle function patients will perform peripheral
resistance training of the large muscle groups of the upper and lower extremities. Finally,
to improve respiratory performance after surgery and potentially reduce pulmonary
complications, patients will perform breathing exercises. The program will be patient
personalized and compromises three training sessions per week. The cycle ergometer used for
this program will upload training results of the interval and endurance training sessions to
an online platform, enabling remote monitoring of patients' adherence and training progress.
Furthermore, a community physical therapist will visit the patient at least weekly to monitor
progress and to optimize the training intensity.
Main study parameters/endpoints: The main study parameter/endpoint is the progression in
aerobic capacity after 6 weeks. Hereto, before and after the first training period a CPET
will performed to determine the difference in VO2 at the VAT and VO2peak in ml/kg/min. A
secondary parameter/endpoint of this study is the progression in aerobic capacity after the
second training period, and six weeks after termination of the program. Hereto, after 12 and
18 weeks another CPET will be performed. Other secondary parameters/endpoints are the
evaluation of differences in sarcopenia, anthropometry, functional mobility, quality of life,
perceived fatigue, incidence of hepatic encephalopathy, number of unplanned hospital
admissions, change in liver frailty index score and change in microbiome composition at six,
12 and 18 weeks, or until transplantation. Furthermore, postoperative outcomes up to twelve
months post-OLT will be collected.
Nature and extent of the burden and risks associated with participation, benefit and group
relatedness: Because the exercise program is situated at home (both the cycle ergometer as
the community physiotherapist will come to the patient) the investigators make things as
accessible as possible for the patient to participate. Supervision by the physiotherapist
during the training sessions is arranged three times in the first week and at least once a
week thereafter. At the start of the program a CPET with continuous ECG monitoring will be
executed under guidance of trained employees to assess baseline cardiorespiratory fitness, as
well as to rule out strain related cardiac ischemia and other contraindications for physical
exercise training during the consecutive exercise program. Hence, patient's safety in the
exercise program is guaranteed. To minimize the burden of this study, the majority of the
visits, withdrawal of blood samples, physical examinations and other study procedures, are
combined with regular outpatient clinic visits.