Cell Free DNA and Its Integrity Using ALU Sequences as a Biomarker for Diagnosis of Breast Cancer

May 17, 2018 updated by: Fatma Mostafa Mohamed, Assiut University

The Role of Circulating Cell-free DNA and Its Integrity Using ALU (247/115) bp Sequences as a Biomarker for Diagnosis of Breast Cancer

Breast cancer (BC) is the most common cancer in women worldwide, and is the leading cause of death from cancer among women globally. Mammography is the standard method for early detection of BC in many countries, with over 1.3 million annually new diagnosed cases.In Egypt, breast cancer is the most common cancer in females accounting for 38.8% of all female cancers.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Breast cancer (BC) is the most common cancer in women worldwide, and is the leading cause of death from cancer among women globally. Mammography is the standard method for early detection of BC in many countries, with over 1.3 million annually new diagnosed cases.In Egypt, breast cancer is the most common cancer in females accounting for 38.8% of all female cancers. Whereas radiological screening programs have been successfully applied in detecting breast cancer in earlier stages, no valuable blood biomarkers have been yet identified for that purpose. However, false-positive recall rates vary according to age, breast density, and postmenopausal hormonal therapy, among other. For women with dense breasts, the accuracy of mammography is decreased. Circulating serum marker for monitoring of BC have been in development for several decades. Conventional tumor markers, such as cancer antigen 15-3 (CA15-3), carcinoembryonic antigen (CEA)), and circulating tumor cell count (CTC), are clinically available, however, their usefulness is mostly limited to patients with advanced and metastatic BC (MBC). Hence, there is a need for developing new biomarkers which can be used as valuable tools in identifying high risk patients, to predict disease prognosis and thus have an impact in patient management.Cell free DNA (cfDNA) are short fragments of nucleic acids present in the circulation. Multiple studies also have indicated elevated levels of cf DNA in breast cancer. The ALU(Arthrobacter luteus) sequences were chosen, as they are the most abundant and active repeated elements in the human genome, typically 300 nucleotides in length, accounting for more than 10% of the genome. DNA integrity was calculated as the ratio of (ALU247/ALU115). As the annealing sites of ALU115 are within the ALU247 annealing sites, thus the ratio of ALU247 to ALU115 is termed as DNA integrity. It characterizes the fragmentation pattern of circulating cell free DNA. The DNA integrity is "1" if template DNA is not truncated and "0" if DNA is completely truncated to fragments smaller than 247 bp (base pair). Thus it has been assessed for its diagnostic and prognostic potential role in breast cancer patients

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
116

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

19 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Sampling Method

Non-Probability Sample

Study Population

This study will be conducted on one hundred informed and consented female individuals (according to the guidelines of ethical committee of faculty of Medicine, Assuit University and South Egypt Cancer Institute.

Description

Inclusion Criteria:

  • All patients enrolled before initiation of any treatment.

Exclusion Criteria:

  • Any other malignant or benign tumors.
  • Active inflammatory or autoimmune diseases.
  • Renal or liver diseases.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Other
  • Time Perspectives: Other

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Patients with early breast cancer(30)
Diagnostic test: Mammography-Histopathological examination of breast mass specimens- polymerase chain reaction
Mammography-Histopathological examination of breast mass specimens-Detection of long and short DNA fragments in serum using real-time quantitative polymerase chain reaction
Patients with advanced breast cancer(30)
Diagnostic test: Mammography-Histopathological examination of breast mass specimens- polymerase chain reaction
Mammography-Histopathological examination of breast mass specimens-Detection of long and short DNA fragments in serum using real-time quantitative polymerase chain reaction
Patients with benign breast diseases(20)
Diagnostic test: Mammography-Histopathological examination of breast mass specimens- polymerase chain reaction
Mammography-Histopathological examination of breast mass specimens-Detection of long and short DNA fragments in serum using real-time quantitative polymerase chain reaction
Apparently healthy females as a control group(36)
Diagnostic test: Mammography-Histopathological examination of breast mass specimens- polymerase chain reaction
Mammography-Histopathological examination of breast mass specimens-Detection of long and short DNA fragments in serum using real-time quantitative polymerase chain reaction

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Diagnostic values of cell free DNA using ALU (Arthrobacter luteus) sequence levels (247 bp (base pair), 115bp) and its integrity in peripheral blood of breast cancer patients as non invasive marker.
Time Frame: 3 days
3 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Assiut University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 1, 2018

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 1, 2020

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 1, 2020

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 16, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 21, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 22, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 21, 2018

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 17, 2018

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2018

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CFDAIIUASABFDOBC

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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