NCT06898463

Brief Summary

Background Postoperative sleep disorders are common complications of surgery and anesthesia that prolong morbidity and hospital stay. Various methods are being explored to prevent and treat these issues. This study was designed to investigate the effects of ketamine, melatonin, and their combination on postoperative sleep disturbances and pain. Methods Patients were randomly allocated into three groups: melatonin (Group M), ketamine (Group K), and a melatonin-ketamine combination (Group MK). Group M received 0.1 mg/kg oral melatonin preoperatively (60 minutes before surgery) and postoperatively at 21:00; Group K received 0.3 mg/kg IV ketamine during anesthesia induction; and Group MK received both regimens. Sleep quality was assessed on the first postoperative day using the Richards-Campbell Sleep Questionnaire (RCSQ), and pain intensity was evaluated with the Numeric Rating Scale (NRS). Early extubation-related complications (e.g., coughing, breath-holding, desaturation, vomiting, and laryngospasm) and delayed complications in the post-anesthesia care unit (PACU) were documented. Demographic variables, including ASA physical status scores, were recorded. Intraoperative monitoring comprised basal, post-intubation, and post-extubation measurements of heart rate (HR), systolic arterial pressure (SAP), diastolic arterial pressure (DAP), and mean arterial pressure (MAP) at 30-minute intervals, together with recording surgery and extubation durations.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
183

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Sep 2022

Typical duration for phase_4

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 19, 2022

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 25, 2024

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 25, 2024

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

March 12, 2025

Completed
15 days until next milestone

First Posted

Study publicly available on registry

March 27, 2025

Completed
Last Updated

May 9, 2025

Status Verified

April 1, 2025

Enrollment Period

1.7 years

First QC Date

March 12, 2025

Last Update Submit

May 6, 2025

Conditions

Keywords

RhinoplastySleep DisorderMelatoninKetamine

Outcome Measures

Primary Outcomes (1)

  • To compare the effects of melatonin and ketamine on postoperative sleep disturbances.

    On postoperative day 1, patients' sleep quality was assessed at bedside using the Richards-Campbell Sleep Questionnaire (RCSQ). Although primarily used in intensive care settings, the RCSQ is also valid for assessing sleep in postoperative patients. It shows high internal consistency and moderate correlation with polysomnography. The RCSQ includes five items: sleep depth, latency, awakenings, efficiency, and overall quality. Each item is rated on a 0-100 mm visual analog scale, where higher scores reflect better sleep. The total score is the average of the five items.

    From enrollment to the end of treatment at 21 Mounths

Study Arms (3)

M GROUP

ACTIVE COMPARATOR

In Group 1 (Melatonin, M), patients received 0.1 mg/kg oral melatonin 60 minutes before surgery in the premedication room and at 9 PM on the first postoperative day.

Drug: Melatonin (N-acetyl-5-methoxytryptamine)

K GROUP

ACTIVE COMPARATOR

In Group 2 (Ketamine, K), patients were administered 0.3 mg/kg intravenous ketamine during anesthesia induction.

Drug: Ketamine

M-K GROUP

ACTIVE COMPARATOR

In Group 3 (Melatonin-Ketamine, MK), patients received 0.1 mg/kg oral melatonin in the premedication room 60 minutes before surgery and at 9:00 PM on the first postoperative day, and 0.3 mg/kg intravenous ketamine during anesthesia induction.

Drug: Melatonin (N-acetyl-5-methoxytryptamine)Drug: Ketamine

Interventions

0.1 mg/kg oral melatonin was administered twice

M GROUPM-K GROUP

0.3 mg/kg intravenous ketamine was administered during anesthesia induction.

K GROUPM-K GROUP

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients capable of providing consent
  • Patients able to reliably report their symptoms to the research team
  • Patients with American Society of Anesthesiologists (ASA) physical status I-II
  • Patients aged 18-65 years
  • Patients undergoing rhinoplasty surgery

You may not qualify if:

  • Patients with cognitive impairment or a communication barrier
  • Patients with a BMI \> 30
  • Patients with OSAS (Obstructive Sleep Apnea Syndrome)
  • Patients with a known psychiatric disorder
  • Patients with renal failure
  • Patients with liver failure
  • Patients with cardiovascular disease (e.g., heart failure, coronary artery disease, arrhythmia, etc.)
  • Patients with malignancy
  • Patients who are pregnant or lactating
  • Patients with a history of allergy to melatonin and ketamine
  • Patients with an American Society of Anesthesiologists (ASA) Physical Status score ≥3
  • Patients who do not consent to participate in the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Necmettin Erbakan University Faculty of Medicine

Konya, Selçuklu, 42080, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Sleep Wake Disorders

Interventions

MelatoninKetamine

Condition Hierarchy (Ancestors)

Nervous System DiseasesNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsMental Disorders

Intervention Hierarchy (Ancestors)

TryptaminesIndolesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsHormonesHormones, Hormone Substitutes, and Hormone AntagonistsCyclohexanesCycloparaffinsHydrocarbons, AlicyclicHydrocarbons, CyclicHydrocarbonsOrganic Chemicals

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
CARE PROVIDER, INVESTIGATOR
Purpose
PREVENTION
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator MD

Study Record Dates

First Submitted

March 12, 2025

First Posted

March 27, 2025

Study Start

September 19, 2022

Primary Completion

May 25, 2024

Study Completion

December 25, 2024

Last Updated

May 9, 2025

Record last verified: 2025-04

Data Sharing

IPD Sharing
Will share

Share the abstract and materials and methods section

Shared Documents
STUDY PROTOCOL
Time Frame
starting in March 2025

Locations