Healthy Volunteers Clinical Trial
Official title:
Neuroplasticity Induced by General Anaesthesia
The aim of this study is to use magnetic resonance imaging to explore and compare possible de novo neuroplastic changes induced by the isolated effects of the hypnotic agents sevoflurane and propofol, respectively. In addition, to explore possible associations between neuroplastic changes and clinical and/or biochemical outcomes. It is a randomised, cross-over, single blinded clinical study. N = 30. Female:male ratio 1:1.
Background In the perioperative period, severe changes can be observed in the endocrine, immune, and nervous system. These changes are called the surgical stress response. Clinically, this can be observed as increased pain response and disturbances in the circadian rhythm, memory, cognitive and executive functions, and may lead to post-operative delirium. The post-operative cognitive dysfunction is associated with increased mortality and risk of prematurely leaving occupation. Post-operative delirium with fluctuating levels of attention and consciousness is a serious condition associated with poor outcome, including longer hospitalisation and increased early mortality. General anaesthesia may contribute to the surgical stress response. Some data indicate that general anaesthesia per se can cause alterations and disturbances in the brain such as sleep and circadian disturbances. Recent evidence suggests that anaesthetic agents may impair neurogenesis and cause memory impairment. In addition, inhalation anaesthesia may result in more cerebral disturbances compared to total intravenous anaesthesia (TIVA). In this study, we will isolate the effects of the two primary hypnotic agents used in general anaesthesia, sevoflurane and propofol, without the interactions and confounders of polypharmacy and varying levels of disease among a surgical population. Materials The study consists of two study sessions. In each study session magnetic resonance imaging (MRI) scans will be obtained before and after general anaesthesia, and in addition after one and eight days. The following imaging modalities will be employed: (i) T1-weighted 3D anatomy (T1w3D), (ii) Diffusion Tensor Imaging (DTI), (iii) resting state functional MRI (rsfMRI). The MRI scans will be supplemented with cognitive testing, sleep evaluation and blood sampling. Thus, the set-up for each volunteer will be: Session one: Day 0: MRI 1, cognitive testing, questionnaires, and blood sampling. General anaesthesia (maintenance phase with sevoflurane OR propofol according to randomisation), and post-anaesthesia care. MRI 2 and repeated cognitive testing, questionnaires, and blood sampling. Day +1: MRI 3, cognitive testing, questionnaires, and blood sampling. Day +8: MRI 4, cognitive testing, and questionnaires. Session two: Identical to session one, except the volunteer will receive the remaining type of general anaesthesia (sevoflurane or propofol, opposite to session one). Data evaluation will be conducted with assessor blinded to anaesthesia type. ;
| Status | Clinical Trial | Phase | |
|---|---|---|---|
| Completed |
NCT05001152 -
Taste Assessment of Ozanimod
|
Phase 1 | |
| Completed |
NCT05029518 -
3-Way Crossover Study to Compare the PK (Pharmokinetics) and to Evaluate the Effect of Food on the Bioavailability
|
Phase 1 | |
| Completed |
NCT04493255 -
A Study to Determine the Metabolism and Elimination of [14C]E7090 in Healthy Male Participants
|
Phase 1 | |
| Completed |
NCT03457649 -
IV Dose Study to Assess the Safety, Tolerability, PK, PD and Immunogenicity of ARGX-113 in Healthy Volunteers
|
Phase 1 | |
| Completed |
NCT00995891 -
Collection of Blood, Bone Marrow, and Buccal Mucosa Samples From Healthy Volunteers for Center for Human Immunology, Autoimmunity, and Inflammatory Diseases (CHI) Laboratory Research Studies
|
||
| Completed |
NCT05043766 -
Evaluation of Oral PF614 Relative to OxyContin
|
Phase 1 | |
| Completed |
NCT05050318 -
Annual Study for Collection of Serum Samples in Children and Older Adults Receiving the 2021-2022 Formulations of Fluzone Quadrivalent Vaccine and Fluzone High-Dose Quadrivalent Vaccine, Respectively
|
Phase 4 | |
| Completed |
NCT04466748 -
A Multiple Ascending Dose Pharmacology Study of Anaprazole in Healthy Chinese Subjects
|
Phase 1 | |
| Completed |
NCT00746733 -
Vyvanse and Adderall XR Given Alone and in Combination With Prilosec OTC
|
Phase 1 | |
| Recruiting |
NCT05929651 -
Study of Immunogenicity and Safety of MenQuadfi® as a Booster Vaccine in Toddlers 12 to 23 Months, Regardless of the Quadrivalent Meningococcal Conjugate Vaccine Used for Priming in Infancy
|
Phase 4 | |
| Completed |
NCT05954039 -
Evaluation of the Efficacy of a Dietary Supplement on Hair Loss and Hair Aspect
|
N/A | |
| Completed |
NCT05045716 -
A Study of Subcutaneous Lecanemab in Healthy Participants
|
Phase 1 | |
| Active, not recruiting |
NCT02747927 -
Efficacy, Safety and Immunogenicity of Takeda's Tetravalent Dengue Vaccine (TDV) in Healthy Children
|
Phase 3 | |
| Completed |
NCT05533801 -
A Study to Demonstrate the Bioequivalence of Lecanemab Supplied in Vials and a Single-Use Auto-Injector (AI) in Healthy Participants
|
Phase 1 | |
| Not yet recruiting |
NCT03931369 -
Adaptation of Thirst to a Single Administration of Tolvaptan (TOLVATHIRST)
|
Phase 2 | |
| Completed |
NCT03279146 -
A Single Dose Study Evaluating PK of TXL Oral Formulations in Healthy Subjects
|
Phase 1 | |
| Completed |
NCT06027437 -
A Study to Assess the Relative Biological Availability and the Effect of Food on the Drug Levels of Danicamtiv in Healthy Adult Participants
|
Phase 1 | |
| Recruiting |
NCT05619874 -
Effects of Two Virtual HIFCT Programs in Adults With Abdominal Obesity
|
N/A | |
| Completed |
NCT05553418 -
Investigational On-body Injector Clinical Study
|
N/A | |
| Completed |
NCT04092712 -
Study Evaluating Pharmacokinetics and Mass Balance of [14C]-CTP-543 in Healthy Adult Male Volunteers
|
Phase 1 |