Moderna’s use of “vaccine” and “therapy” does not contradict itself. The words answer different questions: what a product is for, how it works, what a regulator calls it, and how a company groups its programs. The one sentence most often quoted to suggest a contradiction, a 2020 statement that mRNA was “considered a gene therapy product by the FDA,” describes a regulatory framing at that time, not a current label for any approved Moderna product. A reader who wants to know what a specific Moderna product is should check its official name and label, not a phrase from a company filing or a broad category.
What Moderna said in 2020
In its Form 10-Q for the quarter ended June 30, 2020, Moderna wrote: “Currently, mRNA is considered a gene therapy product by the FDA.” The sentence that follows in the same filing says that mRNA-based medicines were designed not to irreversibly change the DNA of cells, which the company contrasted with certain gene therapies that do. The filing also described the regulatory pathways for these products as uncertain at the time.
Read in context, the statement is a description of how the company understood its platform and the FDA’s classification in mid-2020. It is not a timeless description of every mRNA product, and it is not evidence that a later approved product carries the same classification in every country.
How FDA defines gene therapy
FDA’s public explainer on human gene therapy defines the category by what the product is meant to do:
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“Human gene therapy seeks to modify or manipulate the expression of a gene or to alter the biological properties of living cells for therapeutic use.”
The explainer also says gene therapy products are biologics regulated by the agency’s Center for Biologics Evaluation and Research (CBER). The definition turns on therapeutic aim and mechanism, meaning changes to gene expression or to cells. It does not say that every product that uses genetic instructions falls within it, and it does not by itself decide how a particular mRNA vaccine is classified.
Why “vaccine” and “therapeutic” are not opposites
The word “vaccine” is not a rival to “therapeutic” in the law. FDA’s frequently asked questions on biological products quote the Public Health Service Act, which defines a biological product to include a “vaccine” alongside other products such as a “therapeutic serum,” “toxin,” and “antitoxin.” The quoted definition covers products “applicable to the prevention, treatment, or cure of a disease or condition of human beings.” FDA adds that biological products under that Act also meet the Federal Food, Drug, and Cosmetic Act’s definition of a drug.
In other words, a vaccine is a biological product that is applicable to prevention, and a therapeutic is a product applicable to treatment. Both can sit inside the same statutory category. The useful distinction is between four separate things:
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- Purpose: whether the product is meant to prevent disease or treat an existing one.
- Mechanism: how the product acts, such as whether it changes gene expression or cell biology.
- Official classification: the product’s name and category under the statute and the regulator’s product records.
- Company language: how a business groups its products in reports, pipeline charts and marketing.
How Moderna uses both words today
Moderna’s 2024 annual report describes its COVID-19 and RSV products as vaccines and describes a pipeline that spans both vaccine and therapeutic franchises. Its development-program page places respiratory vaccines under one heading and oncology and rare-disease therapeutic programs under others. This is a portfolio grouping. It does not mean that the preventive products stopped being called vaccines, or that the therapeutic programs are a different kind of mRNA technology.
What a company’s program page can and cannot tell you
Pipeline headings are management’s way of organizing work. They tell you where a program sits in a company’s plan, not whether a product is approved, what its label allows, or how a regulator classifies it. Program pages also show individual last-update dates, so the date on a page is the date of that page’s content, not a measure of how well a product works.
What the current product name shows
The most reliable identifier is the official product name and label. FDA’s product page for Spikevax lists the product as “COVID-19 Vaccine, mRNA,” and it states the approved indication and population. The same page includes 2026–2027 formula information. Formulas, eligibility and recommendations for respiratory vaccines change from season to season, so the page you read today may differ from one you saw earlier.
When you check a product, confirm the details on FDA’s own site rather than relying on a copy or a cached version. Open the FDA label directly, because the copy used in preparing this article was reached through an intermediary rather than the FDA page itself.
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A practical comparison of the labels
| Label or statement | Where it comes from | What it establishes | What it does not establish |
|---|---|---|---|
| “mRNA is considered a gene therapy product by the FDA” | Moderna Form 10-Q, quarter ended June 30, 2020 | The company’s description of FDA’s view and its platform design at that time | Current classification of any approved product |
| Gene therapy definition | FDA public explainer | A general definition based on therapeutic aim and mechanism, regulated by CBER | Whether a specific mRNA vaccine meets it |
| “Vaccine” in the statutory definition | FDA FAQ quoting Section 351 of the Public Health Service Act | A vaccine is a biological product applicable to prevention | Mechanism, or whether a product is a gene therapy |
| “Vaccine” or “therapeutic” in portfolio language | Moderna 2024 annual report and development-program page | How the company groups its programs | Regulatory status or approval |
| Official product name | FDA product page (Spikevax) | The product’s current designation, indication and population | Anything about other Moderna products or programs |
How to check a Moderna product’s name yourself
- Identify the exact product name, such as Spikevax, and the year or formula you are reading about.
- Open the product’s page on FDA’s website and find its official product name and approved indication.
- Check the approved population and any formula information against the current label.
- Compare that information with the company’s own filing or product page, and note the date of each source.
- Treat any broad phrase about “mRNA” as a description of a platform or a portfolio, not a statement about every product.
Why the distinction matters to readers who follow Moderna’s finances
Investors and savers often read company reports and investor slides that group programs under headings such as vaccines and therapeutics. Those headings are useful for understanding strategy, but they are not regulatory decisions. Whether a product can be sold, and for whom, depends on its approval and label. A reader who wants to understand a company’s revenue or pipeline should trace each product back to its approval status and official name, rather than treating a portfolio category as evidence of what a product is or what it may be allowed to do.
The naming question also shows why a single slogan rarely settles a technical debate. The same mRNA technology can support a vaccine product for prevention and a therapeutic program for treatment. The label that matters most is the one attached to the specific product being sold or studied.
Moderna’s terminology reflects different frames at different times. The company’s 2020 statement describes a regulatory framing from that year. FDA’s definitions describe purpose and mechanism. Moderna’s current portfolio language describes how it organizes its work. Read together, these sources are consistent, provided each is applied to the question it answers.
Labels, formulas, and recommendations for respiratory vaccines can change. Before relying on any specific detail in this article, check the current FDA label and the latest recommendations directly.
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