Skip to main content
OpenTrials
Completed

NCT Number: NCT02267304

Double Blind Randomized, Monocentric, Cross-over, Placebo-controlled Study to Evaluate the Effect of Morphine and Naloxone on Motivation (MBBAnalgesic)

The aim of the current study is to examine the role of the opioïd system on the cognitive parameters of motivation. They are embedded in a conceptual framework of motivation that merges decision-making and reinforcement learning theories. Every action is conceived as path from one state to another. The different states are associated to different values (positive for rewards and negative for punishments), and the different actions to different costs (risk, effort and delay). The tasks are designed such that the sensitivity to the state and action parameters can be inferred by fitting computational models.The primary objective is to characterize the effect of Morphine 0,05mg/kg and Naloxone 10mg on cost accumulation slope, assessed in an effort management task, in which participants are asked to squeeze a hand grip during 30 seconds at varying level of effort in order to win monetary payoff. Secondary objectives are to characterize the effect of Morphine 0,05mg/kg and Naloxone 10mg on other cognitive parameters of motivation (assessed with a motivational battery that includes rating, choice and learning tasks).

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Healthy

Age range

18 year–50 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

CIC Neurologie GHPS

Paris, 75013, France

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Man or woman, age ≥ 18 and < 50
  • Weight between 50 kg and 90 kg.
  • No contraindication to effort
  • No evolutive pathology that could interfere with the current study signed consent
  • medical insurance ("sécurité sociale")

Exclusion criteria

  • Age < 18 or > 50
  • Smokers
  • Person under curatorship, or guardianship, or with civil rights deprivation
  • History of neurologic or psychiatric pathology
  • Chronic or actual consumption of alcohol, or psychotropic drugs
  • pregnancy, breastfeeding
  • Woman of childbearing potential without effective contraception
  • Liver failure
  • Severe Cardiovascular Disorders
  • Severe Cerebrovascular Discorders
  • Morphine (or Naloxone) hypersensitivity/addiction
  • Treatment contraindicated: morphine dérivatives, neuroleptics, barbiturate, benzodiazepine, anxiolytics, hypnotics, antidepressant, antihistamine, antihypertensives, beta blocker, baclofen, thalidomide
  • Enzyme inducers, (rifampicine, …)
  • Treatment that can interfere with the performance of the subject: beta2 adrenergic agonists, analgesics, corticosteroïds, anti-inflammatory drugs, …

Treatment and study plan

50 mL of sodium chloride (0,9%)

Drug

Morphine 0,05mg/kg

Drug

Naloxone 10mg

Drug

Primary outcomes

  1. Cost Accumulation Slope (AU.)

    Time frame: 15 min after first placebo injection, 15 min after morphine (respectively naloxone) injection

    The primary Outcome measure is the change in this parameter between the placebo condition and the morphine (respectively naloxone) condition.This parameter will be infered from the time spent in a effort period versus a rest period within trials of an effort managing task, for each subjects.

Sponsors and collaborators

Lead sponsor

Institut National de la Santé Et de la Recherche Médicale, France

Other Gov

Registry information

Official study title

Etude Comparative Monocentrique, randomisée, en Cross Over, en Double Aveugle, Contre Placebo, de l'Action de la Morphine et de la Naloxone Dans un modèle Cognitif de Gestion Des Efforts Physiques

Acronym: MBBAnalgesic

Important dates

Study start
2013
Primary completion
2016
Study completion
2016
First posted
Oct 17, 2014
Registry last updated
Aug 26, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.