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CTRI Number  CTRI/2026/03/106539 [Registered on: 19/03/2026] Trial Registered Prospectively
Last Modified On: 19/03/2026
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Nutraceutical 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   Effect of drinking a carbohydrate drink before surgery on blood sugar control and recovery after gastrointestinal cancer surgery 
Scientific Title of Study   Effect of pre-operative Carbohydrate loading on post-operative Insulin Resistance in patients undergoing surgery for Gastrointestinal malignancy: A Randomized Controlled Trial 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Kunal Kalani 
Designation  Junior Resident 
Affiliation  All India Institute of Medical Sciences (AIIMS), Patna 
Address  Department of Surgical Gastroenterology, AIIMS Patna, Phulwarisharif, Patna, Bihar-801507, India

Patna
BIHAR
801507
India 
Phone  9996633602  
Fax    
Email  kalanikunal4@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Kislay Kant 
Designation  Assistant Professor 
Affiliation  All India Institute of Medical Sciences (AIIMS), Patna 
Address  Department of Surgical Gastroenterology, AIIMS Patna, Phulwarisharif, Patna, Bihar-801507, India

Patna
BIHAR
801507
India 
Phone  9958615755  
Fax    
Email  kislay.kant@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Kunal Kalani 
Designation  Junior Resident 
Affiliation  All India Institute of Medical Sciences (AIIMS), Patna 
Address  Department of Surgical Gastroenterology, AIIMS Patna, Phulwarisharif, Patna, Bihar-801507, India

Patna
BIHAR
801507
India 
Phone  9996633602  
Fax    
Email  kalanikunal4@gmail.com  
 
Source of Monetary or Material Support  
Department of Surgical Gastroenterology, AIIMS Patna, Phulwarisharif, Patna, Bihar-801507, India 
 
Primary Sponsor  
Name  Department of Surgical Gastroenterology 
Address  4th Floor, OPD Block, AIIMS Patna, Phulwarisharif, Patna, Bihar-801507, India 
Type of Sponsor  Research institution and hospital 
 
Details of Secondary Sponsor  
Name  Address 
NIL  NIL 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Kunal Kalani  All India Institute of Medical Sciences Patna  Room No 420, 4th Floor, OPD Block, Phulwarisharif, Patna, Bihar-801507, India
Patna
BIHAR 
9996633602

kalanikunal4@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee,AIIMS Patna  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: K35-K38||Diseases of appendix, (2) ICD-10 Condition: K20-K31||Diseases of esophagus, stomach and duodenum, (3) ICD-10 Condition: K70-K77||Diseases of liver, (4) ICD-10 Condition: K80-K87||Disorders of gallbladder, biliary tract and pancreas, (5) ICD-10 Condition: K55-K64||Other diseases of intestines, (6) ICD-10 Condition: K90-K95||Other diseases of the digestive system,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Conventional Pre operative Fasting Group  patient will be kept conventional preoperative fasting starting at midnight before surgery. 
Intervention  Oral Carbohydrate Drink  OCL group (oral carbohydrate loading) will receive 400 ml of clear carbohydrate drink (maltose dextrin,12.5g of carbohydrate per 100ml) at 10pm the day before surgery and another 200 ml of carbohydrate drink 2 hours before surgery. 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  90.00 Year(s)
Gender  Both 
Details  Patients admitted for elective surgery for GI malignancy in Surgical Gastroenterology department in AIIMS Patna
Age more than 18 years
If the disease turns out to be metastatic at some later point in the study
 
 
ExclusionCriteria 
Details  Emergency surgeries
Metastatic disease
Patients presenting with Gastric outlet obstruction, Dysphagia, Intestinal Obstruction
Known cases of chronic diseases such as uncontrolled Diabetes Mellitus(HbA1c more than or equal to 6.5%), Chronic Liver Disease, Chronic Kidney Disease
 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Open Label 
Primary Outcome  
Outcome  TimePoints 
To compare the effect of oral carbohydrate loading and preoperative prolonged fasting over the Insulin resistance seen post operatively in patients undergoing surgery for Gastrointestinal malignancies using the HOMA-IR calculator  Pre-operatively, Post operative day 1, Post operative Day 3 
 
Secondary Outcome  
Outcome  TimePoints 
The post operative complications on the basis of Clavein-Dindo classification  Pre-operatively, Post operative day 1, Post operative Day 3 
The post operative time to discharge based on fulfillment of the following criteria:
A. Passage of stools/ Functional moving stoma
B. Tolerating soft diet
C. No or minimal tolerable abdominal pain
D. Drain removed/ Drain output less than 50ml
 
Pre-operatively, Post operative day 1, Post operative Day 3 
The post operative CRP in patients undergoing surgery for Gastrointestinal malignancies  Pre-operatively, Post operative day 1, Post operative Day 3 
 
Target Sample Size   Total Sample Size="80"
Sample Size from India="80" 
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" 
Phase of Trial   N/A 
Date of First Enrollment (India)   01/04/2026 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="1"
Months="6"
Days="0" 
Recruitment Status of Trial (Global)   Not Yet Recruiting 
Recruitment Status of Trial (India)  Not Yet Recruiting 
Publication Details   N/A 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary   This single-centre randomized controlled trial will evaluate the effect of preoperative carbohydrate loading on postoperative insulin resistance in patients undergoing elective surgery for gastrointestinal malignancies at AIIMS Patna. A total of 80 adult patients (>18 years) will be enrolled and randomized into two groups: conventional overnight fasting (n=40) and oral carbohydrate loading (n=40) using maltodextrin solution administered the night before and 2 hours before surgery. The primary outcome will be postoperative insulin resistance measured using the HOMA-IR index on postoperative days 1 and 3. Secondary outcomes include postoperative complications (Clavien–Dindo classification), postoperative CRP levels, and time to hospital discharge. 
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