Clinical Research Directory

Study to Evaluate the Efficacy and Safety of Plitidepsin in Adults With Post-COVID-19 Condition (PCC)

The study aims to prove that plitidepsin could be an efficacious, safe, and well-tolerated therapy for PCC. To this end, we will perform a randomized, double-blind study comparing the clinical and laboratory benefits of plitidepsin vs. placebo in 90 subjects with moderate to severe functional disability. The study consists of an intervention period and a follow-up period, with a total of 135 +/-3 days approximately between both periods. During the intervention period, four treatment cycles will be administered, scheduled every 15 days (every 2 weeks), with intravenous (IV) infusion over three consecutive days. After completing the intervention period, a 90-day (+/-5) follow-up period will be conducted. Subjects in arm A will receive the plitidepsin 1.5 mg/day 1h-IV during the four treatment periods on Days 1 to 3, Days 15 to 17, Days 29 to 31 and Days 43 to 45. Subjects in arm B will receive 1h-IV placebo 1 vial /day during the first two treatment periods and will receive the plitidepsin 1.5 mg/day 1h-IV during the last two treatment periods. Subjects in arm C will receive 1h-IV placebo 1 vial/day during the four treatment periods.

Dapagliflozin for Long COVID Syndrome

This is a randomized, placebo-controlled study. Patients with long COVID will be randomized to receive dapagliflozin or placebo for 12 months.

IMPRoving Cardiovascular RiSk Stratification Using T1 Mapping in General populatION

Magnetic properties of myocardial tissue change in the presence of disease. This is detectable in the change of rate of magnetic relaxation, and measurable by T1 and T2 mapping using cardiovascular magnetic resonance (CMR). These markers provide novel quantifiable imaging measures for myocardial tissue characterisation. Despite similar principles, the measurements differ considerably between different sequences, vendors and field strengths, yielding a necessity to establish robust sequence-specific normal ranges, diagnostic accuracy, relationships with clinical characteristics, cardiovascular risk factors, routine cardiac imaging parameters, and prognosis. A further unknown relates to separation between healthy myocardium and subclinical disease in subgroups of patients with suspected cardiac involvement. Examples include patients with possible inflammation, such as in patients with a recent COVID-19 infection or vaccination. Anticipated recruitment of a total of 3000 subjects, with 1500 subjects per field strength (1.5 and 3.0 Tesla).

Does Taurine Supplementation Improve Vascular Function and Orthostatic Responses in Long COVID?

Millions have developed Long COVID (LC), and recent findings show an association between taurine deficiency (an amino acid) and symptoms in LC. Cost-effective and accessible interventions are needed to improve welfare and reduce healthcare costs. We will investigate the efficacy of 12-week taurine supplementation, on vascular function and the cardio/cerebrovascular responses to upright posture in LC. We will measure resting vascular function with EndoPAT and ultrasound, resting heart rate variability, and the blood pressure, heart rate, and brain blood flow response to 5 minutes of head-up tilt before and after 12-weeks of taurine supplementation in LC.

Immunoadsorption in Autoimmune Long COVID

Some people continue to have serious symptoms long after COVID-19, such as extreme fatigue and feeling worse after activity. In some patients, this may happen because the immune system is attacking the body by mistake. This study will test a treatment called immunoadsorption, which filters the blood to remove harmful antibodies. People with long COVID who have these antibodies will be randomly assigned to receive either the real treatment or a placebo. The main goal is to see whether fatigue improves after one month, and whether other symptoms and daily functioning improve over six months. This research will help us find out if this treatment can benefit the group of long COVID patients with immune-related disease.

Observational Study of Intranasal IVIG in Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Patients Undergoing Medical Tourism

This observational study is being conducted by Healing Hope International to collect real-world data on an emerging treatment approach for Long COVID in patients with immunodeficiency. The study investigates the effects of intranasal immunoglobulin (IVIG) therapy in a real-world setting. Participants will be individuals diagnosed with Long COVID who have confirmed immunodeficiency, such as low IgG or IgA levels or specific antibody deficiency. These individuals are receiving care through international clinical programs and will not receive any treatment as part of this study. Instead, Healing Hope will collect health information, clinical outcomes, and laboratory results from participating sites to better understand how intranasal IVIG might help reduce symptoms such as fatigue, brain fog, inflammation, and immune dysregulation. The goal of this study is to contribute new insights into potential treatment options for Long COVID and to support responsible, science-backed care models for patients participating in medical tourism. No experimental drugs are being administered as part of this protocol. All treatment decisions are made independently by each clinical site. Data will be anonymized and used to advance knowledge in the field of immunological recovery and neuroinflammation.

A Study to Examine Anktiva for the Treatment of COVID-19.

This study will examine the safety and effectiveness of Anktiva in treating patients with Long COVID-19 which is defined as persistent symptoms of a COVID-19 infection that remain after the infection is over.

Magnetic Resonance Analysis of Neural Inflammatory Factors and External Stimulation

The goal of this clinical trial is to test whether a type of rapid outpatient brain stimulation that uses magnetic fields, called accelerated intermittent theta burst stimulation (iTBS), can treat symptoms such as brain fog, depression, and anxiety in patients with Long COVID. The main questions it aims to answer are: * Is iTBS effective and feasible for reducing Long COVID symptoms? We will measure these symptoms using the Symptom Burden Questionnaire. * Are there changes in inflammatory brain chemicals associated with treatment with iTBS? We will be looking at levels of choline in the brain, which is thought to be related to inflammation. Researchers will compare sham versus active forms of iTBS to see if the active group has greater improvement in symptoms. Participants will complete symptom surveys, cognitive tests, and magnetic resonance imaging scans at the beginning, middle, and end of treatment.

Characteristics of Long COVID-19 Syndrome

Characterization of patients with long COVID syndrome including symptoms, medical history and persistent organ damage.

Osteopathic Manipulative Therapy Effects on Post-Acute Sequelae of COVID-19 (PASC) or Long COVID

This study is investigating the effects of using an Osteopathic Manipulative Therapy (OMT) treatment protocol that was shown to statistically improve smell in individuals suffering from Long-COVID olfactory (smell) dysfunction in a small single-blinded pilot trial conducted during 2021. The questions this study is trying to answer are: 1. Does this OMT protocol improve other non-smell related Long-COVID symptoms 2. Do 2 OMT treatments improve Long-COVID symptoms more than 1 OMT treatment Participants will: 1. Week 1: Take an digital survey regarding their Long-COVID symptoms undergo Long-COVID OMT treatment or a placebo treatment 2. Week 2: Take an digital survey regarding their Long-COVID symptoms then all will undergo Long-COVID OMT treatment 3. Week 3: Take an digital survey regarding their Long-COVID symptoms 4. Week 8: Take an digital survey regarding their Long-COVID symptoms

Evaluation of MicroRNAs and Vitamin B12 Expression in Subjects with Neurologic Symptoms of Depression, Anxiety and Fatigue in Long COVID-19

At the moment, the number of people with long COVID is unkown because there is still no effective diagnosis. This is why is very important to analyze the most common symptoms, which are: depression, anxiety and fatigue. This project seeks to analyze some blood components of people with long COVID, such as microRNAs and vitamin B12, in order to identify the body processes that changed after COVID-19 and thereby design better therapies and diagnostic methods focused on each of them. The hypothesis is that the expression of miR-21, -146a and -155 will be overexpressed as well as there will be a deficiency of vitamin B12 in serum in subjects suffering from long COVID with neurological symptoms of depression, anxiety and fatigue.

Effectiveness of a Personalized In-home Telerehabilitation Program on Self-Care in Patients with Long COVID

The goal of this clinical trial is to evaluate whether a 12-week tele-rehabilitation programme with monitoring via a mobile app produces medium-term improvements in self-management, fatigue and quality of life in patients affected by persistent COVID. The main questions it aims to answer are: * Will a multimodal program (exercise with education) improve the self-management ability of patients with post-exertional malaise? * Does fatigue and quality of life will be improved in these patients? Researchers will compare an experimental breath program to a control standard care group to see if multimodal program works to treat post-exertion malaise. Participants will: * Follow-up 12 weeks online sessions: 1 weekly synchronous online session + 1 scheduled asynchronous session + educational resources * Daily use of the app: daily log, education and questions