Reference

Glossary & Abbreviations

Plain-language explanations of the regulatory, clinical, and investment terms used across these pages.

FDA & regulatory

FDA
Food and Drug Administration. The U.S. agency that regulates drugs, biologics, and medical devices.
CBER
Center for Biologics Evaluation and Research. The FDA division overseeing biologics, cell and gene therapy, and exosome programs.
IND
Investigational New Drug application. Submitted to FDA before any new drug or biologic can be tested in humans.
BLA
Biologics License Application. The FDA submission that authorizes a biologic for marketing once trials are complete.
351(a)
Section 351(a) of the Public Health Service Act. The full BLA pathway for new biologics like Wharton's jelly exosomes.
361
Section 361 of the Public Health Service Act. A regulatory pathway for human cells and tissues that meet minimal-manipulation criteria.
HCT/P
Human Cells, Tissues, and Cellular and Tissue-Based Products. The FDA category for cell and tissue-based products under 21 CFR 1271.
21 CFR 1271
Code of Federal Regulations Part 1271. Governs HCT/P registration, donor screening, and manufacturing.
RMAT
Regenerative Medicine Advanced Therapy designation. An FDA program that speeds approval of regenerative medicine candidates that address unmet need.
cGMP
Current Good Manufacturing Practice. FDA quality standards for drug and biologic manufacturing.
CMC
Chemistry, Manufacturing, and Controls. The section of an IND or BLA describing how the product is made and tested.
Pre-IND
A Type B meeting with FDA to align on clinical and CMC plans before submitting the IND application.
INTERACT
Initial Targeted Engagement for Regulatory Advice on CBER Products. An early FDA meeting type for novel biologics.

Clinical & cell therapy

MSC
Mesenchymal Stem Cell. A multipotent cell type used in regenerative therapies for inflammation and tissue repair.
WJ-MSC
Wharton's Jelly Mesenchymal Stem Cell. MSCs derived from umbilical cord tissue. Younger and more potent than bone-marrow MSCs.
Exosome
A small extracellular vesicle (30 to 150 nanometers) released by cells. Carries proteins, lipids, and nucleic acids that mediate cell-to-cell signaling.
Discseel
An outpatient procedure that injects fibrin sealant into spinal disc tears to repair annular damage without surgery.
SOP
Standard Operating Procedure. A documented method for performing a clinical or manufacturing step consistently.
IRB
Institutional Review Board. The committee that reviews and approves clinical research protocols to protect study subjects.
IND-enabling
Studies, especially preclinical safety and CMC work, that must be completed before submitting an IND to FDA.

Oncology & targeted therapy

TOL
Targeted Osmotic Lysis. A non-toxic cancer therapy that uses voltage-gated sodium channel modulation to selectively rupture tumor cells.
VGSC
Voltage-Gated Sodium Channel. A membrane protein over-expressed in many metastatic cancers, exploited by TOL therapy.
VEGF
Vascular Endothelial Growth Factor. A signaling protein that drives blood-vessel growth in tumors. The target of bevacizumab and related agents.
Carboplatin
A platinum-based chemotherapy drug used in cervical, ovarian, and lung cancers.
Pembrolizumab
A PD-1 inhibitor immunotherapy used in multiple solid tumors. Marketed as Keytruda.
Bevacizumab
A monoclonal antibody targeting VEGF. Marketed as Avastin.
SCC
Squamous Cell Carcinoma. A common cancer of skin, cervix, head and neck, and lung.

Investing & finance

DCF
Discounted Cash Flow. A valuation method that estimates the present value of future expected cash flows.
LBO
Leveraged Buyout. An acquisition financed mostly with debt secured against the target's assets and cash flow.
Comps
Comparable company analysis. Valuing a company by reference to public-market or transaction multiples of similar companies.
IC
Investment Committee. The deciding body that approves or rejects deals at a fund or family office.
IC memo
The written brief presented to the Investment Committee for a deal decision.
LP
Limited Partner. The investor in a fund. Provides capital but does not run the fund.
GP
General Partner. The fund manager who makes investment decisions and earns carried interest.
Carry
Carried interest. The share of profits paid to the GP after returning capital to LPs above the hurdle rate.
ROIC
Return on Invested Capital. A profitability metric that measures how well a company converts capital into earnings.
EBITDA
Earnings Before Interest, Taxes, Depreciation, and Amortization. A proxy for operating cash flow used in valuation.
WACC
Weighted Average Cost of Capital. The blended rate of return required by all of a company's capital providers.

Healthcare compliance & legal

HIPAA
Health Insurance Portability and Accountability Act. The U.S. federal law governing protected health information.
AKS
Anti-Kickback Statute. A federal law that criminalizes offering or receiving anything of value to induce referrals of federally-reimbursed services.
Stark
The federal physician self-referral law. Restricts physicians from referring Medicare patients to entities with which the physician has a financial relationship.
OIG
Office of Inspector General. The HHS agency that audits, investigates, and excludes individuals or entities from federal healthcare programs.
LEIE
List of Excluded Individuals/Entities. The OIG's public database of parties barred from participating in federal healthcare programs.
HHS
U.S. Department of Health and Human Services. The federal department that oversees the FDA, CDC, CMS, and OIG.
CMS
Centers for Medicare and Medicaid Services. The HHS agency that runs Medicare and Medicaid.
CON
Certificate of Need. A state-level approval required to build or expand certain healthcare facilities.
ASC
Ambulatory Surgical Center. An outpatient surgical facility, regulated separately from hospitals.
LOP
Letter of Protection. A document by which a personal injury plaintiff's attorney guarantees payment to a treating provider out of settlement proceeds.
PI
Personal Injury. A civil claim for damages arising from negligence or intentional harm.

Litigation & legal Latin

et al.
Latin "et alii" — "and others." Used in case captions to abbreviate a list of additional parties. Hillman v. Ringleader Digital et al. means the case names Ringleader Digital and other co-defendants.
v.
Latin "versus" — "against." Separates plaintiff from defendant in case names. Levine et al. v. Google, Inc.
Pro se
Latin "for himself." A party who represents themselves in court without an attorney.
Plaintiff
The party who brings a civil lawsuit. The one seeking relief from the court.
Defendant
The party against whom a civil or criminal action is brought.
Class action
A lawsuit filed by a representative plaintiff on behalf of a larger group with shared claims against the same defendants.
Discovery
The formal pre-trial process where each side requests documents, depositions, and admissions from the other.
Deposition
Sworn out-of-court testimony recorded by a court reporter. Used to preserve testimony and probe witness accounts.
Subpoena
A court order compelling a person to testify or produce documents.
Summary judgment
A pre-trial ruling that decides a claim on the law alone, without a jury, when no material facts are disputed.
Stipulation
An agreement between opposing parties about facts or procedure, removing the need to prove those points at trial.
Estoppel
A legal doctrine preventing a party from contradicting a position they previously took.
Restitution
Court-ordered repayment to victims for losses caused by the defendant.
Supervised release
Federal post-imprisonment monitoring, separate from probation. Replaces parole in the federal system.
Probation
Court-ordered supervision served in lieu of incarceration, with conditions the defendant must follow.
Voir dire
French "to speak the truth." The jury-selection process where attorneys question potential jurors for bias.
Prima facie
Latin "at first sight." A claim supported by sufficient evidence to proceed to trial absent contrary evidence.
Daubert
A standard from Daubert v. Merrell Dow governing the admissibility of expert testimony in federal court.
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