Actively Recruiting

Phase Not Applicable
Age: 18Years - 65Years
All Genders
Healthy Volunteers
NCT05819476

Boosting Open-Label Placebo Effects in Acute Induced Pain in Healthy Adults

Led by University Hospital, Basel, Switzerland · Updated on 2025-01-24

141

Participants Needed

1

Research Sites

114 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

This study is to investigate the effect of open-label placebo (OLP) application on acute pain in an experimental model of acute pain (simulating wound pain: this installation will apply monophasic, rectangular electrical pulses of 0.5ms duration with alternating polarity at 2 Hz frequency. The current will be increased to target a pain rating of 6 of 10 on the NRS (0 = no pain, 10 = worst imaginable pain). Three further adjustments in current will be made every 5 minutes for the next 15 minutes to compensate for habituation. This final current will be kept constant until the end of the particular experiment). In Part 1 duration of OLP analgesia will be examined, and onset and size of the effect will be reevaluated. In Part 2 of this study outcomes between subjects receiving one OLP injection, subjects receiving one repetition of the injection on a fixed time point and subjects receiving one repetition of the injection on-demand will be evaluated

CONDITIONS

Official Title

Boosting Open-Label Placebo Effects in Acute Induced Pain in Healthy Adults

Who Can Participate

Age: 18Years - 65Years
All Genders
Healthy Volunteers

Eligibility Criteria

Eligible

You may qualify if you...

  • Healthy volunteers (ASA Class I or II), aged 18 to 65 years
  • Body mass index (BMI) between 18 and 25 kg/m2
  • Able to understand the study and the numeric rating scale (NRS) for pain
  • Able to provide informed consent
Not Eligible

You will not qualify if you...

  • Participation in a previous open-label placebo study, including Part 1 of this study for Part 2 participants
  • Regular use of medications or drugs that may interfere with pain sensation, such as analgesics, opioids, antihistamines, calcium and potassium channel blockers, serotonin/noradrenaline reuptake inhibitors, or corticosteroids
  • Presence of neuropathy
  • Chronic pain conditions
  • Neuromuscular diseases
  • Dermatological diseases, including atopic dermatitis
  • Psychiatric diseases
  • Pregnancy or lactation

AI-Screening

AI-Powered Screening

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Trial Site Locations

Total: 1 location

1

University Hospital of Basel (USB); Department of Anaesthesiology

Basel, Switzerland, 4031

Actively Recruiting

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Research Team

T

Tobias Schneider, MD

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

SINGLE

Allocation

RANDOMIZED

Model

CROSSOVER

Primary Purpose

OTHER

Number of Arms

5

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