NCT04367246 · Abramson Cancer Center at Penn Medicine
Li-Fraumeni Syndrome/TP53 Biobank
What this study is about
Li-Fraumeni Syndrome (LFS) and Li-Fraumeni-like (LFL) Syndrome are cancer predisposition syndromes due to germline aberrations in the TP53 gene. Patients with classical LFS have a lifetime malignancy risk between 80-90%, with 21% of those cancers occurring by the age of 15 years.
View original scientific description
Li-Fraumeni Syndrome (LFS) and Li-Fraumeni-like (LFL) Syndrome are cancer predisposition syndromes due to germline aberrations in the TP53 gene. Patients with classical LFS have a lifetime malignancy risk between 80-90%, with 21% of those cancers occurring by the age of 15 years. There are established guidelines for screening patients with LFS that have led to earlier detection and treatment of cancer in this population. There are a number of important issues facing patients identified to have germline TP53 variations. First, with the advent of massively parallel sequencing, increasing numbers of patients are now being identified with a wide range of clinical phenotypes associated with germline TP53 mutations, and the natural history of these patients is less well understood. Second, surveillance for malignancy in LFS and other TP53-associated syndromes involves frequent laboratory and radiologic studies that are imperfect measures of disease onset; therefore, more specific, less invasive biomarker-driven screening methods are needed. Finally, studies to date have not yet identified whether tumors which form in LFS or other germline TP53-associated tumors have unique aberrations or signatures that could be exploited in precision medicine treatment of these patients. In order to study these important issues in LFS, this protocol will establish a TP53 Clinical Database and Biobank. The Investigator plans to use this biobank to study genotype-phenotype correlations in patients with LFS and other germline TP53-associated syndromes, mechanisms of tumor formation, and novel methods of cancer screening in this high risk population.
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 Patient (Group 1)
- Males or females aged 0 and above.
- Confirmed germline TP53 mutation or variant. OR Family history of LFS and clinically managed as a LFS patient. OR Meet LFS diagnostic criteria including Classic, Chompret, and LFL (Birch and Eeles) criteria.
- Informed consent for capable participants. OR Parental/legally authorized representative permission (informed consent) for pediatric participants or subjects with diminished capacity, and if appropriate, assent. Unaffected Family Member (Group 2)
- Males or females aged 0 and above.
- Biological relative of subjects with germline TP53 mutation or variant (LFS), including first degree (siblings, parents) and second degree (grandparents, aunts, uncles) relatives.
- Negative for germline TP53 mutation or variant.
- Informed consent for capable participants. OR Parental/legally authorized representative permission (informed consent) for pediatric participants or subjects with diminished capacity, and if appropriate, assent. Household Member (Group 3)
- Males or females aged 0 and above.
- Household member of subjects with germline TP53 mutation or variant (LFS), sharing a living space (apartment or free-standing home) for at least 6 months prior to study enrollment.
- Informed consent for capable participants. OR Parental/legally authorized representative (LAR) permission (informed consent) for pediatric participants or subjects with diminished capacity, and if appropriate, assent.
Exclusion criteria
- Parents/LAR or subjects who, in the opinion of the Investigator, may be non-compliant with study schedules or procedures.
- Known pregnancy at the time of study enrollment. Subjects that do not meet all of the enrollment criteria may not be enrolled. Pregnant women will not be actively enrolled, but if a woman becomes pregnant she will not be removed from the study; sample collection will be held during known pregnancy.
Where
- Philadelphia, Pennsylvania
- Phildelphia, Pennsylvania
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 Aug 14, 2025 · Source of record for eligibility and locations