NCT04815005 · University of Pennsylvania
HoFH, the International Clinical Collaborators Registry
(HICC)
What this study is about
Homozygous familial hypercholesterolemia (HoFH), a rare inherited disorder caused by bi-allelic mutations in the LDL Receptor pathway, is characterized by extremely elevated levels of low-density lipoprotein cholesterol (LDL-C) from birth and premature atherosclerotic cardiovascular disease (ASCVD).
View original scientific description
Homozygous familial hypercholesterolemia (HoFH), a rare inherited disorder caused by bi-allelic mutations in the LDL Receptor pathway, is characterized by extremely elevated levels of low-density lipoprotein cholesterol (LDL-C) from birth and premature atherosclerotic cardiovascular disease (ASCVD). Our current knowledge about HoFH is disjointed and largely stems from relatively small case series and expert opinion. HICC (Homozygous FH International Clinical Collaborators) is a global consortium of clinicians who are contributing de-identified data of patients diagnosed with HoFH with the goal to advance our understanding of this rare disease.
Interventions
OTHER
Demographics, diagnosis type, genotype, lipid profile, treatment allocation, country of residence.
Differences in diagnosis, genotype, lipid profile treatment allocation among HoFH patients worldwide.
Primary outcome measures
Number of participants entered into the database
Time frame: Through study completion, an average of 8 years
Number of study participants with homozygous familial hypercholesterolemia
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
- Diagnosis of homozygous familial hypercholesterolemia (HoFH) clinically of genetically determined
Exclusion criteria
- No diagnosis of HoFH
Where
- Philadelphia, Pennsylvania
Collaborators
University of Amsterdam, University of Cape Town, University of Witwatersrand, South Africa
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 Dec 18, 2025 · Source of record for eligibility and locations