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Vitamin C and Melatonin for Postoperative Pain After Laparoscopic Cholecystectomy

Evaluation of the simultaneous administration of Vitamin C and Melatonin on postoperative pain in patients undergoing laparoscopic cholecystectomy

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
IRCT
Registry ID
IRCT20260205068767N1
Enrollment
88
Registered
2026-02-17
Start date
2026-03-21
Completion date
Unknown
Last updated
2026-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

cholecystectomy. Retained cholelithiasis following cholecystectomy

Interventions

Intervention 1: Control group: The control group will not receive any intervention and patients will be managed according to the standard care before and during surgery. Intervention 2: Intervention g

Sponsors

Khoram-Abad University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: Age between 18 and 65 years Physical status ASA class I or II Candidate for elective laparoscopic cholecystectomy under general anesthesia Ability to understand and use the NRS (Numerical Rating Scale) Provision of written informed consent

Exclusion criteria

Exclusion criteria: Known allergy to vitamin C or melatonin Chronic opioid use or chronic pain Renal failure (eGFR < 60) History of kidney stones G6PD deficiency Severe liver disease Pregnancy or breastfeeding Use of antioxidant or melatonin supplements within two weeks prior to surgery Requirement for conversion to open surgery

Design outcomes

Primary

MeasureTime frame
Postoperative pain intensity in patients undergoing laparoscopic cholecystectomy, measured by the Numeric Rating Scale (NRS 0–10). Timepoint: 0, 30, 60 minutes and 2, 6, 12, 24 hours after surgery. Method of measurement: Patient pain intensity will be assessed using the Numeric Rating Scale (NRS 0–10), where 0 indicates no pain and 10 indicates the worst possible pain.

Secondary

MeasureTime frame
Postoperative pain intensity will be measured using the Numeric Rating Scale (NRS 0–10) by a blinded outcome assessor. Timepoint: Pain scores will be measured at 0, 30, 60 minutes and 2, 6, 12, and 24 hours postoperatively. Method of measurement: Postoperative pain intensity will be assessed using the Numeric Rating Scale (NRS 0–10) at predefined time points by a blinded outcome assessor. The number of requests and total dose of rescue analgesic (meperidine) within 24 hours post-surgery will also be recorded.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactAtefeh Marzban

Khoram-Abad University of Medical Sciences

atefehmarzban92@gmail.com0663258632

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Jun 11, 2026