Clinical Trials Logo

Clinical Trial Summary

The current study is a placebo-controlled, double-blind, randomized controlled study using a cross-over design, including Healthy Controls (HC) and participants with Panic Disorder (PD). The primary aim of the study is to investigate the neural correlates and behavioral effects of caffeine (versus placebo), and its impact on emotional reactivity, decision-making, and interoception, and compare the effects in individuals with PD vs HCs. Subjective anxiety and the occurrence of panic attacks will also be measured. Multimodal neuroimaging methods, such as structural and functional MRI, will be used to address the aims of the study. Emotional reactivity, emotional decision-making and interoception will be measured with experimental tasks in a 7 Tesla (7T) magnetic resonance (MR) scanner, jointly with measures of skin conductance, heart rate, respiratory rate, and self-reported ratings of anxiety and interoception. Emotional reactivity will be assessed using emotional and neutral faces. Emotional decision-making will be assessed with an approach-avoidance conflict task. Changes in interoception (bodily sensation, such as pulse and respiration) will be explored using a task in which participants are asked to focus on their breathing or an external stimulus. Caffeine effects on brain resting-state activity will also be assessed. All tasks will be conducted while in the 7T MR scanner. A secondary aim of the study is to examine the impact of genetic variability in the adenosine A2A receptor (ADORA2A) genotype (e.g., rs5751876 T/T) on the effects of caffeine (vs placebo), as ADORA2A genotype has previously been associated with elevated caffeine-induced anxiety.


Clinical Trial Description

Given the novelty of the intended study and the lack of previous neuroimaging and emotion-related behavioral studies on caffeine effects in HCs and PD, analyses will be exploratory without directed hypotheses. It is intended to conduct between-group analyses (HCs vs PD) in the two conditions (caffeine versus placebo), as well as within-group analyses in HCs and PD separately. Between-group analyses will also be conducted between individuals with different ADORA2A genotypes. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT06145490
Study type Interventional
Source Uppsala University
Contact Andreas Frick, PhD
Phone +46736292771
Email andreas.frick@uu.se
Status Not yet recruiting
Phase N/A
Start date August 2024
Completion date March 2025

See also
  Status Clinical Trial Phase
Recruiting NCT06052553 - A Study of TopSpin360 Training Device N/A
Completed NCT05511077 - Biomarkers of Oat Product Intake: The BiOAT Marker Study N/A
Recruiting NCT04632485 - Early Detection of Vascular Dysfunction Using Biomarkers From Lagrangian Carotid Strain Imaging
Completed NCT05931237 - Cranberry Flavan-3-ols Consumption and Gut Microbiota in Healthy Adults N/A
Completed NCT04527718 - Study of the Safety, Tolerability and Pharmacokinetics of 611 in Adult Healthy Volunteers Phase 1
Terminated NCT04556032 - Effects of Ergothioneine on Cognition, Mood, and Sleep in Healthy Adult Men and Women N/A
Completed NCT04107441 - AX-8 Drug Safety, Tolerability and Plasma Levels in Healthy Subjects Phase 1
Completed NCT04998695 - Health Effects of Consuming Olive Pomace Oil N/A
Completed NCT04065295 - A Study to Test How Well Healthy Men Tolerate Different Doses of BI 1356225 Phase 1
Completed NCT01442831 - Evaluate the Absorption, Metabolism, And Excretion Of Orally Administered [14C] TR 701 In Healthy Adult Male Subjects Phase 1
Terminated NCT05934942 - A Study in Healthy Women to Test Whether BI 1358894 Influences the Amount of a Contraceptive in the Blood Phase 1
Recruiting NCT05525845 - Studying the Hedonic and Homeostatic Regulation of Food Intake Using Functional MRI N/A
Completed NCT05515328 - A Study in Healthy Men to Test How BI 685509 is Processed in the Body Phase 1
Completed NCT04967157 - Cognitive Effects of Citicoline on Attention in Healthy Men and Women N/A
Completed NCT05030857 - Drug-drug Interaction and Food-effect Study With GLPG4716 and Midazolam in Healthy Subjects Phase 1
Recruiting NCT04714294 - Evaluate the Safety, Tolerability and Pharmacokinetics Characteristics of HPP737 in Healthy Volunteers Phase 1
Recruiting NCT04494269 - A Study to Evaluate Pharmacokinetics and Safety of Tegoprazan in Subjects With Hepatic Impairment and Healthy Controls Phase 1
Completed NCT04539756 - Writing Activities and Emotions N/A
Recruiting NCT04098510 - Concentration of MitoQ in Human Skeletal Muscle N/A
Completed NCT03308110 - Bioavailability and Food Effect Study of Two Formulations of PF-06650833 Phase 1