Effect of Novel Donor Lifestyle Optimisation Protocol on Liver Regeneration in Live Liver Donors

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

75 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-10-01

Study Completion Date

2022-04-30

Brief Summary

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Steatosis in case of live liver donors is on the rise and around 20- 40 % of prospective liver donors are estimated to have hepatic steatosis. Significant steatosis has been shown to be associated with inferior donor outcomes after liver transplant. Dietary and lifestyle modification has been shown to reduce steatosis and may help improve the donor outcomes after liver transplant. Donors will be randomized between two groups; one will be put under donor lifestyle optimization protocol and the other shall follow normal diet and lifestyle. Donors under optimization protocol would undergo diet modification in the form of healthy, low fat, high protein diet along with exercise for 2 weeks prior to the expected date of surgery. Investigations including liver volumetric assessment, LFT's , lipid profile , Fibroscan shall be done prior to initiation of the diet and then following completion of the 2 weeks of lifestyle modification before surgery. The intraoperative parameters including intraoperative blood loss shall be assessed and a liver biopsy will be taken intraoperatively to assess for steatosis and liver regeneration markers including CK7 and Ki 67 will be assessed. Following surgery, the liver regeneration in donor shall be assessed by doing a liver volumetry by Computed Tomography (CT) at POD7. Post surgery, the donor shall undergo daily LFT's, PT-INR and the time to its normalization and serum bilirubin shall be assessed. Markers of liver regeneration shall also be assessed initially a day before surgery and then at POD 1, 3 and 7.

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Detailed Description

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All prospective donors provisionally planned for donor hepatectomy excluding those undergoing left lateral hepatectomy will be informed regarding the current study and informed written consent will be taken from donors willing to participate in the study. After step II evaluation of the donors, they will be randomized into two groups. First group will be put under donor lifestyle optimization protocol and the other shall follow normal diet and lifestyle. Donors under optimization protocol would undergo diet modification in the form of healthy, low fat, high protein diet along with exercise for 2 weeks prior to the expected date of surgery. If the expected date of surgery is delayed because of any cause, the proposed lifestyle optimization shall continue till the date of surgery. Step I of the evaluation including Blood group, coagulation profile, LFT, KFT, Viral serology, Liver attenuation index on Non contrast CT scan of abdomen and a Fibroscan shall be done. After step I investigations are found to be normal, patient would be subjected to step II evaluation consisting of CECT abdomen with liver volumetry including total liver volume, right lobe volume without MHV using ,expected remnant volume using software for analysis of CT volumes, MRCP for biliary anatomy, TFT and lipid profile. Body composition analysis, Fibroscan, lipid profile and LFT shall be done prior to initiation of the diet and then following completion of the 2 weeks of lifestyle modification. The intraoperative parameters including intraoperative blood loss shall be assessed. Intra operative liver biopsy will be taken from segment IV after completion of hepatectomy from all the donors undergoing donor hepatectomy using a core needle biopsy(B Braun® 18g). Precautions will be taken to take adequate tissue samples and avoid subcapsular sampling. Hemostasis of the needle tract will be obtained by use of electro thermal energy source. The core liver biopsy will be sent in formalin containing bottle to the histopathologist. Liver biopsy will be done independently by two expert histopathologists. Any abnormal histopathological finding will be noted, degree of steatosis assessed and regenerative markers from the tissue including CK7 and Ki67 will be assessed. Following surgery, the liver regeneration in donor shall be assessed by doing a liver volumetry at POD7 and POD 14. Following donor hepatectomy, routine parameters like LFT, PT-INR will be documented and the post operative day of normalisation of PT-INR and Serum Bilirubin will be noted. The volumetry of the regenerated liver will be done at day 7 and day 14 in all the donors. Seum level of liver regenerative markers shall(including HGF, IL6, TNF alpha, TGF beta, INF alpha) will be assessed on a day before surgery and then at Post operative day 1, 3 and 7. Liver function tests and PT-INR would be evaluated daily for one week. . In the post operative period , any surgical complication arising will be assessed till first month after surgery and the donor outcomes will be monitored. Complications shall be assessed based on Clavien Dindo Classification.

On follow ups liver function tests will be performed weekly for 1 month and then at monthly intervals till 3 months after surgery. At this time, any long term complication will be assessed.

Study population: Donors undergoing donor hepatectomy after giving informed written consent to be a part of the study.

Study Design: Randomised Control Pilot Study

Study Period: From time of ethical clearance to October 2021.

Sample Size: All the donors planned for donor hepatectomy meeting the inclusion criteria from time of clearance from ethical committee to october 2021 will be enrolled in this study following which randomization will be done on basis of computer generated numbers. Anticipated sample size would be 30 in each group after exclusion.

Inclusion Criteria

All donors planned for donor hepatectomy and found fit in step II evaluation.

Those who give consent to be a part of the study.

Exclusion criteria Patients refusing to consent for the study

Donor of ALF patients.

Donors undergoing left lateral hepatectomy.

Donors found unfit after step I/II evaluation.

Intervention: Diet and lifestyle modification group will receive customized two week diet plan which would consist of calorie restricted(based on basal requirement calculated by Harris Benedict Equation), high protein(25%), low fat(15%) diet along with regular exercise (brisk walk for 45 min/day). Assessment of compliance will be checked by calling each donor twice every week and during their regular weekly follow ups as well.

Conditions

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Liver Regeneration

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Participants

Study Groups

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Intervention arm

Liver donors undergoing lifestyle optimisation

Group Type EXPERIMENTAL

Novel donor lifestyle optimisation protocol

Intervention Type BEHAVIORAL

Diet based on calorie requirement as calculated by indirect calorimetry. Daily exercise.

Control arm

Liver donors who continue normal lifestyle.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Novel donor lifestyle optimisation protocol

Diet based on calorie requirement as calculated by indirect calorimetry. Daily exercise.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* All donors planned for donor hepatectomy and found fit in step II evaluation.

Those who give consent to be a part of the study.

Exclusion Criteria

* Patients refusing to consent for the study

Donor of ALF patients.

Donors undergoing left lateral hepatectomy.

Donors found unfit after step I/II evaluation.

Minimum Eligible Age

18 Years

Maximum Eligible Age

55 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes