Healthy Participants | Pharmacological Conditioning of Sleep Patterns in Healthy Participants Using Amitriptylin

Healthy Participants research study

What is the primary objective of this study?

The purpose of this study is to evaluate whether an Amitriptylin induced change in sleep patterns can be conditioned according to learning theory in healthy participants.

Who is eligible to participate?

Inclusion Criteria: - age between 18 years to 69 years - willingness to refrain from alcohol consumption throughout the study - regular sleeping habits - fluent in German language - is not dependent on driving to get to the study center - provide written informed consent - ability to understand the explanations and instructions given by the study physician and the investigator Exclusion Criteria: - Contraindications to study medication intake according to the information sheet for health professionals (Summary of medicinal Product Characteristics, SmPC) assessed by physical examination (including ECG) and medical history - allergies to amitriptyline hydrochloride or any of its ingredients - acute intoxication with alcohol, analgetics, hypnotics or any other psychotropic drug - urinary retention - delirium - untreated closed-angle glaucoma - prostatic hyperplasia - pyloric stenosis - paralytic ileus - suicidal thoughts - liver/ kidney/ pulmonary insufficiency - myasthenia gravis - hypokalemia - bradycardia - coronary heart disease, cardiac arrhythmias, long QT syndrome or other clinically relevant cardiac disorders - increased risk of seizures/ history of seizures - substance dependence syndrome/ history of substance dependence syndrome - Allergies to ingredients of placebo or novel-tasting drink (CS) - currently pregnant (verified by urine pregnancy test) or lactating - patients suffering from a mental disorder as verified by the International Diagnosis Checklists (IDCL) - patients suffering from a medical condition (assessed by the study physician) - Concomitant medication interfering with study medication intake due to potential interactions - participation in any other clinical trial 3 months prior to visit 1 - employee of the Sponsor or the principal investigator

Which medical condition, disease, disorder, syndrome, illness, or injury is researched?

Healthy Participants

Study Interventions

Interventions can include giving participants drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available or noninvasive approaches such as surveys, education, and interviews.



Study Arms

Research studies and clinical trials typically have two or more research arms. An arm is a group of people who receive the same treatment in the study.

Experimental group

Control group

Study Status


Start Date:

Completed Date: September 2014

Phase: N/A

Type: Interventional


Primary Outcome: Objective Total Sleep Time

Secondary Outcome:

Study sponsors, principal investigator, and references

Principal Investigator:

Lead Sponsor: Winfried Rief


More information:

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