Multimodal Opioid-Free Anesthesia in RIRS (NCT07636070) | Clinical Trial Compass
Not Yet RecruitingNot Applicable
Multimodal Opioid-Free Anesthesia in RIRS
Turkey (Türkiye)60 participantsStarted 2026-06-01
Plain-language summary
The goal of this clinical trial is to evaluate whether a dexmedetomidine-ketamine based opioid-free anesthesia (OFA) protocol can provide effective analgesia compared to conventional fentanyl-based anesthesia in adult patients undergoing elective retrograde intrarenal surgery (RIRS). The main questions it aims to answer are:
Does opioid-free anesthesia reduce postoperative opioid consumption compared to fentanyl-based anesthesia? Does opioid-free anesthesia result in lower postoperative pain scores?
Researchers will compare the dexmedetomidine-ketamine group to the fentanyl-based anesthesia group to see if opioid-free anesthesia reduces opioid requirements and improves recovery quality.
Participants will receive either a dexmedetomidine-ketamine based OFA protocol or conventional fentanyl-based anesthesia during surgery and will be monitored for pain, opioid consumption, and recovery outcomes postoperatively.
Who can participate
Age range
18 Years – 65 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
Aged 18 to 65 years ASA physical status I or II ASA III patients with controlled and stable systemic disease (e.g., well-controlled hypertension or type 2 diabetes without end-organ damage) Scheduled for elective retrograde intrarenal surgery (RIRS) under laryngeal mask airway (LMA) Ability to provide written informed consent
Exclusion Criteria:
BMI greater than 40 kg/m² Chronic opioid use Severe cardiovascular disease (uncontrolled arrhythmia, unstable angina, or ejection fraction below 40%) Significant respiratory disease (FEV1 below 60% predicted or oxygen-dependent COPD) Neuropsychiatric disorders Pregnancy Known allergy to any study drug Anticipated difficult airway (Mallampati III-IV, mouth opening less than 3 cm, or thyromental distance less than 6 cm) Requirement for conversion from LMA to endotracheal intubation Emergency cases Withdrawal of informed consent
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.