CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 242 enrolled
Drug / intervention
Alfentanil +1 moredrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT00672438
NCT00672438N/ACompleted

Heritability of Opioid Effects: A Twin Study

Martin Angst·interventional·Posted May 6, 2008·Updated Jan 6, 2017

In Brief

A clinical study evaluating Alfentanil and Saline placebo infusion for Pain. Completed, enrolled 242 participants across 1 site.

Detailed Summary

Proposed twin study will test to what degree inter-individual differences in pain sensitivity and amount of pain relief in response to opioid therapy are inherited or alternatively, are due to environmental factors. This knowledge is important to guide future studies trying to explain such inter-individual differences. For example, finding that differences are largely due to environmental factors would discourage genomic studies and emphasize epidemiological studies.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsPain
CountriesUnited States
CollaboratorsSRI International

Timeline

N/ACompletedFinished
20082009201020112012201320142015201620172018201920202021202220232024202520262027
First PostedMay 6, 2008
Enrollment StartMay 1, 2008
Primary CompletionJun 1, 2010
TodayJul 2, 2026
Enrollment to primary: 2.1 yearsPosted 18.2 years ago

Interventions

Alfentanildrug

Target controlled intravenous infusion of alfentanil at a plasma concentration of 100ng/ml

Saline placebo infusionother

Intravenous infusion of normal saline