NCT05304286 · Massachusetts General Hospital
Psychophysical and Neural Mechanisms Contributing to Chronic Post-Surgical Pain in Adolescents and Adults
What this study is about
The current project will (1) enhance our understanding of the neurobiology of chronic post-surgical pain (CPSP); (2) provide a metric to follow patients with CPSP in the clinic; (3) provide a metric for those who will chronify; and (4) understand the age-related differences in CPSP.
View original scientific description
The current project will (1) enhance our understanding of the neurobiology of chronic post-surgical pain (CPSP); (2) provide a metric to follow patients with CPSP in the clinic; (3) provide a metric for those who will chronify; and (4) understand the age-related differences in CPSP. Ultimately, an improved comprehension of mechanisms linked to CPSP will provide finer tools for optimizing the selection of treatments for individual patients. Moreover, data that demonstrates the underlying pathobiological pain mechanism(s) active in CPSP, particularly those non-responsive to current therapies, may be used to validate novel strategies both pharmacological and non-pharmacological.
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
- --Females and males aged 12 and older who have previously undergone surgery at least 6 months ago and have chronic post surgical pain (3 months after surgery or longer)
Exclusion criteria
- Inability to speak sufficient English or another language that can be interpreted orally and for questionnaires with the research team
- Severe cognitive impairment by history (e.g., intellectual disability, severe head injury)
- Patients with significant psychiatric disorders
- Use of illegal hard drugs including MDMA, heroin, methamphetimes, amphetamines, cocaine, ketamine, benzodiazepines, and phencyclidine. Absence of such drugs will be confirmed in a urine drug screen during the visit. If prescription medication includes any of these compounds, that medication is not exclusionary.
Where
- Boston, Massachusetts
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 Nov 3, 2025 · Source of record for eligibility and locations