science

Soticlestat

Soticlestat 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 Soticlestat rather than just read about it. In short: Soticlestat (developmental code names TAK-935, OV-935) is an experimental anticonvulsant and cholesterol 24-hydroxylase inhibitor being investigated as a treatment for Dravet syndrome, Lennox–Gastaut syndrome, tuberous sclerosis complex, dup15q syndrome, and CDKL5 deficiency disorder. The development rights to the drug were purchased by Takeda Pharmaceuticals from Ovid Therapeutics in 2021.

Key takeaways

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

Reference excerpt

Soticlestat (developmental code names TAK-935, OV-935) is an experimental anticonvulsant and cholesterol 24-hydroxylase inhibitor being investigated as a treatment for Dravet syndrome, Lennox–Gastaut syndrome, tuberous sclerosis complex, dup15q syndrome, and CDKL5 deficiency disorder. The development rights to the drug were purchased by Takeda Pharmaceuticals from Ovid Therapeutics in 2021. In January 2025, Takeda announced they were halting development of the drug. Soticlestat was designated as an orphan drug by the FDA in 2017 for the treatment for both Dravet syndrome and Lennox–Gastaut syndrome.

Mechanism of action Soticlestat functions by blocking cholesterol 24-hydroxylase (CH24H, also known as CYP46A1), an enzyme in the brain that converts cholesterol to the oxysterol 24S-hydroxycholesterol (24S-HC). Reduction of 24S-HC has been shown to reduce glutamatergic signaling, which reduces seizures. Soticlestat may also have neuroprotective and anti-inflammatory properties via glial cell modulation.

Clinical trials Soticlestat has been assessed in clinical trials for refractory epilepsy associated with Dravet syndrome and Lennox–Gastaut syndrome. The Phase 2 ELEKTRA study indicated that soticlestat was well tolerated and reduced seizure frequency. In the Phase 3 SKYLINE clinical study, Takadea reported that topline data showed soticlestat plus standard of care narrowly missed its primary endpoint of reducing convulsive seizure frequency in patients with Dravet syndrome. However, it demonstrated clinically significant effects on several key secondary endpoints, including responder rates and measures of caregiver and clinician global perceptions of improvement. In the separate Phase 3 SKYWAY trial, soticlestat did not meet its primary endpoint of reducing major motor drop seizures in Lennox–Gastaut syndrome. Both studies reported a favorable safety and tolerability profile for soticlestat.

References

Illustrations

Worked examples

Example 1 — a first encounter with Soticlestat

Start with the simplest possible case. Write down what Soticlestat 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 Soticlestat 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 Soticlestat 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 Soticlestat

In research: Soticlestat 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 Soticlestat 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: Soticlestat is common in secondary-school and first-year university syllabi. It links to neighbouring topics 4-Hydroxypiperidines, Abandoned drugs, Alcohols, so understanding it makes those chapters shorter.
In everyday life: Look for Soticlestat 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 Soticlestat in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Soticlestat 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 Soticlestat out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Soticlestat in simple terms?

Why does Soticlestat 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 Soticlestat?

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 Soticlestat.