Pupil Response in Patients on Opioids. (NCT02247024) | Clinical Trial Compass
CompletedNot Applicable
Pupil Response in Patients on Opioids.
Norway63 participantsStarted 2015-01
Plain-language summary
Evaluation of pupillary reflex in patients on high-dose opioids. Clinical assessment of pain intensity, sedation score, and other side effects of opioids. Measurements of the concentration of opioids and their active metabolites in blood.
Who can participate
Age range
18 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:
* In-patients and out-patients at Oslo University Hospital with cancer pain who have use opioids (morphine, oxycodone, fentanyl or methadone or a combination of these drugs) at least for periods of 4 weeks, and use opioids corresponding to at least 60 mg oral morphine equivalents pr day
Exclusion Criteria:
* Patients who have undergone eye-surgery that may influence pupillary reflexes
* Patients on local medication that may influence pupillary reflexes
* Patients with amyloidosis, multiple sclerosis, Horner's syndrome, or ongoing migraine attack
* Patients with brain tumor
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.