science

PDL BioPharma

PDL BioPharma is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand PDL BioPharma rather than just read about it. In short: PDL BioPharma (known as Protein Design Labs prior to 2006) is a publicly traded American holding company that since 2008 manages patents and other intellectual property that had been generated by the company. In 2008 in response to shareholder pressure, PDL spun out its active development programs to a company called Facet Biotech that it capitalized with $400 million.

Key takeaways

PDL BioPharma belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect PDL BioPharma to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of PDL BioPharma from memory before moving on to harder problems.

Reference excerpt

PDL BioPharma (known as Protein Design Labs prior to 2006) is a publicly traded American holding company that since 2008 manages patents and other intellectual property that had been generated by the company. In 2008 in response to shareholder pressure, PDL spun out its active development programs to a company called Facet Biotech that it capitalized with $400 million. Protein Design Labs, founded in 1986 by cell biologist Laurence J. Korn and mathematician Cary Queen, was a pioneer in humanizing monoclonal antibodies. Its humanization technology was used in several monoclonal antibody drugs under licensing and collaboration agreements; such products included trastuzumab (Herceptin), bevacizumab (Avastin), and palivizumab (Synagis). It held its initial public offering in 1992 and by 1994 it had 13 compounds in its pipeline, and had partnered its lead product, the humanized monoclonal antibody daclizumab, with Roche under a license that called for a 15% royalty. Daclizumab became the first humanized monoclonal antibody approved for human use in 1997. PDL made another public offering in 2000, at the peak of the biotech IPO window that ran from 1998 to 2001. In 2003 it settled litigation with Genentech over royalty payments owed to PDL under their license agreement; annual royalties were anticipated at that time to be around $90M per year. These are the kinds of intellectual property and license agreements that PDL manages on behalf of its shareholders since 2008; in 2007 those royalty payments were around $220 million. One of the development programs that PDL had transferred to Facet was the use of daclizumab in indications it had never licensed to Roche, including multiple sclerosis. Facet partnered that development program with Biogen Idec which attempted a hostile buy out of Facet for $350M in 2009; Facet rejected that offer and was purchased by Abbvie for $450 million in cash the next year. The FDA approved daclizumab for multiple sclerosis in 2016 under the trade name Zinbryta. PDL Biopharma has filed for a liquidation under Delaware Law that was effective January 7, 2021. The liquidation plan was approved by shareholders in October 2020.

References

External links Official website

Worked examples

Example 1 — a first encounter with PDL BioPharma

Start with the simplest possible case. Write down what PDL BioPharma claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to PDL BioPharma before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about PDL BioPharma ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of PDL BioPharma

In research: PDL BioPharma appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses PDL BioPharma in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: PDL BioPharma is common in secondary-school and first-year university syllabi. It links to neighbouring topics Biotechnology companies of the United States, Life sciences industry, so understanding it makes those chapters shorter.
In everyday life: Look for PDL BioPharma outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study PDL BioPharma in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what PDL BioPharma means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain PDL BioPharma out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is PDL BioPharma in simple terms?

Why does PDL BioPharma matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study PDL BioPharma?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on PDL BioPharma.