Gene study aims to make Post-Surgery painkillers safer
NCT ID NCT06996561
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether a person's genetic makeup influences how well the painkiller nalbuphine works after abdominal or pelvic surgery. Researchers will collect blood samples from 263 adults before and after surgery to analyze genes linked to pain relief. The goal is to improve pain management and reduce the risk of opioid-related problems in the Pakistani population.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2/3
Runs two stages together: whether the treatment works, then large-scale confirmation.
- Participants
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About 263 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2025
- Expected to finish
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Jun 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 70 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. All adult men or women 2. Age 18 to 70 years 3. ASA criteria 1,2 and 3 4. Abdomino-pelvic surgeries (open hernia repair, appendicectomy, open cholecystectomy, laparotomy, hysterectomy, cystectomy) lasting 2-4 hours Exclusion Criteria: 1. Surgical procedure duration lasting more than 4 hours 2. Patients taking anti fungal fluconazole, anticoagulant (Warfarin or Clopidogrel) SNRI (Amitryptalline), Rifampicin or Buprenorphine, 3. History of hypersensitivity or allergy to opioids, 4. Pregnant or breastfeeding mothers, 5. History of narcotic dependency, addiction, and withdrawal 6. Patients experiencing any adverse side effects or complications during surgical procedure requiring intensive care admission 7. Refusing to participate in the study 8. Surgical procedures utilizing other modes of intraoperative analgesia e.g epidural analgesia or nerve blocks
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Ziauddin University
RECRUITINGKarachi, Sindh, 755000, Pakistan
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a single drug dose curb opioid side effects after kidney stone surgery?
- Can a new Non-Opioid pill cut painkiller needs after throat surgery?
- Can zapping three acupoints rewire the brain to ease surgical pain?
- Can a triage checklist ease pain months after emergency surgery?
- Can a nerve block quiet the brain during gallbladder surgery?