The Educational Branch of COLONTOWN

COLONTOWN University

COLONTOWN University

Glossary

Academic Cancer Institution

A cancer research center that receives support from the National Cancer Institute (NCI) to do cancer research and provide services directly to cancer patients.

Accrual

The total number of people who have completed or in the process of completing a specific trial. This number includes patients who withdraw.

Active, but not recruiting

Trial status. A study is ongoing, but potential participants are not currently being enrolled.

ADA

Americans with Disabilities Act. It prohibits discrimination against people with disabilities in the workplace, transportation and public accommodations.

Adverse event (AE)

A bad reaction to a treatment. Also called adverse effect and adverse reaction.

Alkaline phosphatase

A protein found in all body tissues.

ALT

Alanine transaminase. An enzyme found in the liver that helps convert proteins into energy for liver cells.

Anus

The opening at the end of your intestines through which poop leaves the body.

APR

Abdominalperineal resection. In this operation, the colon, rectum, and anal sphincter are removed, resulting in a permanent colostomy.

Arm

In clinical trials, an arm is a particular group in a trial receiving a drug or treatment. This often includes an experimental/treatment arm and a control/standard-of-care arm. Early-phase trials may have multiple experimental arms with no control arm. Placebos are very uncommon in cancer trials.

Ascending colon

The first part of the large intestine, which passes upward from the cecum on the right side of the abdomen.

AST

Aspartate transaminase. An enzyme that helps metabolize amino acids.

Biomarkers

Proteins present in or released by the tumor or metastases that can be detected in blood, other bodily fluids, or tissues.

Biopsy

An examination of tissue removed from your body to discover the presence, cause, or extent of your cancer.

Blinded

There are two types of blinded trials. In a single-blind trial, participants do not know what drug or regimen they are receiving. In a double-blind trial, neither the researchers nor the participants know which drug patients receive until after the trial finishes. Double-blind studies are used to minimize the influence of bias and the placebo effect.

BRAF

A gene that codes for an enzyme that plays an essential role in a signaling pathway in your cells.

CA 19-9

A protein found in your blood that can be a useful tumor marker for some patients.

CBC

Complete blood count. A blood test measuring the number of red blood cells, white blood cells and platelets in the body.

CEA

Carcinembryonic antigen. A common tumor marker found in the blood.

Cecum

A pouch that forms the first part of the large intestine.

Chemotherapy

Set of drug treatments that use powerful drugs to kill cancer within the body. These drugs affect all rapidly dividing cells in the body including cancer cells, common side effects are seen when chemotherapy drugs affect normal cells.

Clinical trial

Research studies performed in people that are aimed at evaluating medical, surgical, or behavioral intervention.

CMP

Complete metabolic panel. A blood test measuring 14 different substances in the blood.

Coccygectomy

Surgery that removes the tailbone.

Codon

A 3-letter “word” in DNA or RNA that tells the cell which building block (amino acid) to use when making a protein.

Colonoscopy

A procedure in which a flexible fiber-optic instrument is inserted through the anus in order to examine the colon.

Colorectal cancer

When a malignant tumor develops in the colon or rectum.

Community clinic

Community-driven, non-profit clinics located in medically underserved areas or serving populations that are medically underserved.

Consent

A written document that provides comprehensive information about a clinical trial. It will go over all the expectations and possible risks that come along with participating in a trial. You can choose to withdraw consent at any time.

Cross-over

A type of trial in which participants receive two or more interventions in a specific order. For example, one group of patients may receive drug A for a period of time, then drug B. The other group of patients would receive drug B then drug A.

CT scan

Computed tomography scan. A procedure that uses a computer linked to an x-ray machine to make a series of detailed pictures of the inside of the body.

ctDNA

Circulating tumor DNA. Genetic material from cancerous cells found in the bloodstream.

Descending colon

The part of the large intestine that pases downward on the left side of the abdomen toward the rectum.

Diagnosis

Determining what kind of disease you have. Cancer diagnoses can come along with a whole bunch of information, from stage to cancer type.

Dietician

An expert on diet and nutrition.

Differentiation

The term used to describe how much or how little tumor tissue looks like the normal tissue it came from.

Digestive system

Includes the mouth, pharynx (throat), esophagus, stomach, small intestine, large intestine, and anus. The main job is to absorb nutrients from food.

Disease control rate (DCR)

Percentage of patients whose disease shrinks or remains stable over the duration of the trial.

Disease-free survival (DFS)

The length of time after primary treatment that a patient survives without any signs or symptoms of that cancer. In a clinical trial, measuring the DFS is one way to see how well a new treatment works. In study results, this value is reported as the median amount of time participants experienced DFS. Also known as relapse-free survival (RFS).

DNA

Deoxyribonucleic acid. A molecule found in every cell in the body, containing instructions for everything your cells need to do.

Dose escalation

A dose-escalation study determines the optimal dose of a particular drug. In this type of study, the dose of a trial drug is gradually increased until they find the highest effective dose that doesn’t cause unacceptable side effects. Dose escalation can be a part of phase I and phase II clinical trials.

Dose finding

The process of finding the optimal dose of a particular drug, usually with a dose-escalation study. This is usually the focus of phase II clinical trials.

DPYD/DPD

Genes that code for enzymes that are important in the breakdown of the chemotherapy drugs 5FU and capecitabine.

EBRT

External beam radiation therapy. Refers to the delivery of tightly targeted radiation beams from outside the body.

ECOG score

This is a score from 0 to 5 that refers to a patient’s level of functioning and ability to carry out daily tasks. It’s often used as exclusion or inclusion criteria in clinical trials. The scale is listed below: 

EEOC

Equal Employment Opportunities Commission. A federal agency that enforces civil rights laws against workplace discrimination.

EGFR inhibitor

Epigenetic growth factor receptor inhibitor. A class of drugs that blocks the activity of specific proteins called epidermal growth factor receptors. They are often found at high levels on some types of cancer cells.

Endoscopy

A procedure in which an instrument is introduced into the body to give view of its internal parts.

Epithelium

The thin tissue forming the outer layer of a body’s surface and lining the intestines and other hollow structures.

Exclusion criteria

Rules to determine if a person is eligible to participate in a particular trial, focused on reasons why they would not be eligible. For example, a trial may not be open to MSS patients, patients with specific mutations, or patients with specific underlying health conditions.

Failed to meet endpoint

The endpoint of a clinical trial is an outcome that can be measured to determine whether or not the drug or treatment tested has benefit to patients. This could be an improvement in overall survival (OS), progression-free survival (PFS) or symptoms and side effects. When a trial fails to meet its endpoint, it means that the treatment being studied has not acheived the benefit that researchers were expecting — however this endpoint may be based on information that has changed over the years. So a “failed” trial may still show that a treatment provides some benefits for patients. Take a look at OS, PFS, ORR, etc for other measures of success.

First-line treatment

The first type of medication given aimed at shrinking or curing cancer.

Gene

The basic unit of inheritance. Together, many many genes make up your DNA.

Genetic counselor

An expert who provides information on how genetics may affect you or your family.

Genomic testing

The process of observing genes that make up an organism.

Germline testing

A blood test that checks for heritable gene mutations present in all cells of your body — including the tumor.

GI

Gastrointestinal. Relating to the stomach or intestines.

HAI pump

Hepatic artery infusion pump. A method of delivering chemotherapy medicine directly to the liver.

Hazard ratio (HR)

Hazard ratio. In clincial trials, it’s a measure of how often a particular event happens in one group compared to how often it happens in another group, over time. A hazard ratio of one means that there is no difference in survival between the two groups. A hazard ratio of greater than one or less than one means that survival was better in one of the groups.

HCT

Hematocrit. The ratio of the volume of red blood cells to the total volume or blood.

HER2/ERBB2

A protein involved in normal cell growth.

HGB

Hemoglobin. A red protein responsible for transporting oxygen in the blood.

Hospice care

A special kind of care that focuses on quality of life for people and their caregivers who are experiencing an advanced, life-limiting illness.

IHC test

Immunohistochemistry test. A test performed on cancer tissue removed during a biopsy. The test is used to show whether or not cancer cells have specific proteins expressed.

Immunotherapy

The prevention or treatment of disease with substances that stimulate an immune response.

Inclusion criteria

Rules to determine if a person is eligible to participate in a particular trial, focused on reasons why they would be eligible. For example, a trial may be open to only MSI-H patients, or patients with a BRAF V600E mutation.

Industry-sponsored

Sponsored by a for-profit company, typically a pharmaceutical or biotech company.

Institutional review board (IRB)

The group that is responsible for reviewing and monitoring medical research involving human subjects. They are responsible for approving or rejecting research studies based on FDA regulations.

Integrative doctor

A holistic-oriented medical professional who takes account of the whole person, including all aspects of their lifestyle, when treating patients.

Intention to treat (ITT)

The process of analyzing the data from all participants in a trial, based on the group or arm they were initially assigned to. This is done regardless of whether patients dropped out, did not adhere to the full treatment, or were switched to another treatment arm. This is in contrast to a “per-protocol” analysis, where those in the groups listed above would be excluded from the analysis.

Interim analysis

A review of trial data done before the trial is complete. Not all trials have interim analyses. It depends on the protocol decided on before the trial began.

Intervention

A specific action that a trial is investigating. Interventions can be drugs, medical devices, behaviors, procedures, and more.

iRECIST

iRECIST (immune Response Evaluation Criteria in Solid Tumors) is a set of guidelines designed to evaluate tumor response in cancer immunotherapy trials.

LAR

Lower anterior resection. In this surgery, the tumor and part of the rectum is removed. Then, the lower part of the colon is reattached to the rectum.

LARS

Lower anterior resection syndrome. This describes a series of bowel-related symptoms that people who have undergone a LAR operation may experience, such as loose stools, urge to go to the bathroom, and incomplete stools.

Read about LARS:

What can I do to help my bowel function?

Ostomy reversal: What to expect

Lines of treatment

The order in which different treatments are given to patients as their disease progresses. If you experience tumor growth on the first line of therapy, you may move to the second line, and so on..

Liquid biopsy

A test done on a blood sample to look for cancer cells or pieces of tumor cell DNA circulating in the blood.

Lymph

A colorless fluid containing white blood cells, which surrounds tissues and drains through the lymphatic system into the bloodstream.

Lymphatic system

A network of tissues, vessels and organs that work together to move lymph back into your bloodstream.

Lynch syndrome

Inherited mutations in genes that affect DNA mismatch repair, a process that fixes mistakes made in DNA replication. Lynch syndrome is the most common cause of hereditary colorectal cancer.

Malignant

A term for disease in which abnormal cells divide uncontrollably and invade nearby tissues.

Maximum tolerated dose (MTD)

The highest dose of a particular drug or treatment that does not cause unacceptable side effects. The definition of “unacceptable” is determined by each individual trial. In addition, the definition of what is tolerable may vary between patients.

MDTB/MTB

Multi-disciplinary tumor boards. A treatment planning approach in which a number of doctors who are experts in different specialties review and discuss a patient’s medical condition and treatment options.

Measurable disease

A common eligibility requirement. Researchers measure the size of tumors to evaluate whether a treatment is working. However, some tumors are in places they cannot be easily measured, or are too small to measure. According to RECIST 1.1, the requirement is often at least 10mm on the longest dimension.

Mental health professional

A medical professional who specializes in the diagnosis and treatment of mental health issues.

Metastasis

Often referred to as ‘mets’. The development of a secondary cancer growth in a different organ than the primary tumor site.

Microsatellites

Short repeated sequences in DNA.

MMR

Mismatch repair. Your cells’ way of proofreading DNA.

MRD

Minimal residual disease. Refers to a small number of cancer cells left in the body after treatment.

MRI

Magnetic resonance imaging. A procedure that uses radio waves and a powerful magnet linked to a computer to create detailed pictures of inside the body.

MSI-H

Microsatellite instability. Changes found in microsatellite length.

MSS

Microsatellite stable. No changes are found in microsatellite length.

Mucosa

The inner lining of some organs and body cavities.

Multi-disciplinary team

A treatment planning approach in which a number of doctors who are experts in different specialties review and discuss a patient’s medical condition and treatment options.

Mutation

Any change in a gene, resulting in a variant form. This can be caused by changes in single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes.

Naive

A patient is considered treatment-naive if they have never undergone a specific treatment before. For example, a patient who has never had FOLFOX would be considered Oxaliplatin-naive.

NCCN

National Comprehensive Cancer Network. A not-for-profit alliance of leading cancer centers devoted to patient care, research, and education.

NCCN guidelines

National Comprehensive Cancer Network guidelines. A comprehensive set of standard guidelines oncologists follow to determine treatment options. There are separate guidelines for providers and patients.

NCI-designated cancer center

National Cancer Institute-designated cancer center. The NCI is the federal government’s principal agency for cancer research and training. An NCI cancer center can offer cutting-edge treatments.

NED

No evidence of disease.

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