NCT06206148 · University of California, San Francisco
Comparison of Methods for Recording Post Operative Pain
What this study is about
The purpose of the current study is to identify the optimal method of collection of pain intensity data. The study will compare three collection methods: a hand-written pain journal, a smartphone app, and a novel electronic pain recorder device. Patients will be randomly assigned to one of three methods and instructed to record their pain level as often as they like.
View original scientific description
The purpose of the current study is to identify the optimal method of collection of pain intensity data. The study will compare three collection methods: a hand-written pain journal, a smartphone app, and a novel electronic pain recorder device. Patients will be randomly assigned to one of three methods and instructed to record their pain level as often as they like. The number of pain intensity recordings per day will then be compared across groups.
Interventions
DEVICE
Given novel electronic pain recording device
Patients in this arm will be given a custom-built pain recording device to see if the method of self-reported data collection has any effect on how many data points are collected.
OTHER
Given Hand-written pain journal
Patients in this arm will be given a hand-written pain journal to see if the method of self-reported data collection has any effect on how many data points are collected.
OTHER
Smartphone app
Patients in this arm will be given a research smartphone with survey app to see if the method of self-reported data collection has any effect on how many data points are collected.
Primary outcome measures
Comparing Methods for Pain Score collection
Time frame: On patient discharge, up to 2 weeks
Pain Scores will be measured on the Visual Analog Scale (VAS) via 3 different methods to determine the best way to collect pain intensity data. The Visual Analog Scale goes from 0-10 where 0 means no pain and 10 means maximum pain.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Patient over 18 years old
Exclusion criteria
- Patient cannot use a smartphone
- Patient cannot use his hands to write or press a button
- Patient has a nerve catheter (has no pain)
- Altered mental status
- Neuropathy causing loss of pain sensation
Where
- San Francisco, California
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 14, 2025 · Source of record for eligibility and locations