NCT06676046 · National Heart, Lung, and Blood Institute (NHLBI)
Natural History of Uncommon Dyslipidemias, Rare Lipid Disorders and Unusual Atherosclerotic Conditions
What this study is about
Background: The right amount of fats in the blood (cholesterol and triglycerides) are a key part of a healthy organism. Too much or too little of these fats may manifest as diseases (dyslipidemia). There are many causes for these abnormalities, but some are genetically determined and we would like to better understand the progression of these conditions over time.
View original scientific description
Background: The right amount of fats in the blood (cholesterol and triglycerides) are a key part of a healthy organism. Too much or too little of these fats may manifest as diseases (dyslipidemia). There are many causes for these abnormalities, but some are genetically determined and we would like to better understand the progression of these conditions over time. Objective: This natural history study aims to learn more about dyslipidemias; how they change over time; and how they respond to therapy. We also want to develop new diagnosis methods for these conditions. With the knowledge we will acquire we hope to provide new insights, new approaches and improve the overall health of these patients. Eligibility: Individuals aged 10 years and older, residing both within and outside the United States, who have or are suspected of having a disorder that causes changes in the levels of fats in their blood (genetic dyslipidemias). Design: Participants residing within and outside the United States will be screened. Their medical records may be reviewed. They may talk to researchers about their medical history by phone, telehealth, or in person. All study visits are optional. Participants may visit the NIH up to 15 times per year, if needed. Each visit may include a physical exam and blood tests. Participants may also have an electrocardiogram (EKG). The EKG measures the electrical activity when the heart beats. In some cases, participants may remain in the study for up to 20 years.
Primary outcome measures
Change overtime in low-density lipoprotein cholesterol (LDL-C).
Time frame: up to 20 years
To observe change overtime in low-density lipoprotein cholesterol (LDL-C).
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Affected Participants
- Male and female participants age \>= 10 years.
- Subjects with confirmed or suspected rare disorder that causes lipid/lipoprotein abnormalities (dyslipidemia) or abnormal documented or referred atherosclerosis patterns.
- Only affected individuals (not healthy volunteers and for self-referred subjects independent of lipid and lipoprotein marker values.); subjects with laboratory or clinical presentation that in the opinion of the Principal Investigator, would alter the determination of normal parameters for assays and screening tools development. -Ability of the subject or Legally Authorized Representative (LAR) to understand and willingness to sign a written informed consent document. Healthy Volunteers
- Participants must be healthy, with no known history of lipid disorders or related medical conditions.
- Participants must not be pregnant.
Exclusion criteria
- Patients with disorders that cause common secondary/lipoprotein alterations.
- Patients with any other findings that, in the opinion of the Principal Investigator, would preclude them from participating in the study.
Where
- Bethesda, Maryland
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Mar 23, 2026 · Source of record for eligibility and locations