chemistry

Paltusotine

Paltusotine is a chemistry 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 Paltusotine rather than just read about it. In short: Paltusotine, sold under the brand name Palsonify, is a medication used for the treatment of acromegaly. It is a somatostatin receptor 2 agonist.

Key takeaways

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

Reference excerpt

Paltusotine, sold under the brand name Palsonify, is a medication used for the treatment of acromegaly. It is a somatostatin receptor 2 agonist. It is taken by mouth. It was developed by Crinetics Pharmaceuticals. The most common side effects include diarrhea, abdominal pain, nausea, decreased appetite, bradycardia, hyperglycemia, and gastroenteritis (stomach inflammation). Paltusotine was approved for medical use in the United States in September 2025.

Medical uses Paltusotine is indicated for the treatment of adults with acromegaly who had an inadequate response to surgery and/or for whom surgery is not an option. Acromegaly is a rare endocrine disorder that causes some bones, organs, and other tissue to grow bigger. The pituitary gland in the brain causes these changes by making too much growth hormone due to the presence of a non-cancerous tumor.

Adverse effects Paltusotine increases the risk of cholelithiasis (gallstones); hyperglycemia (high blood sugar); hypoglycemia (low blood sugar); bradycardia (low heart rate); thyroid function abnormalities; steatorrhea (excessive fat in the stool) and malabsorption of dietary fats; and changes in vitamin B12 levels. The most common side effects are diarrhea, abdominal pain, nausea, decreased appetite, bradycardia, hyperglycemia, and gastroenteritis (stomach inflammation).

History The safety and efficacy of paltusotine were evaluated in two randomized, double-blind, placebo-controlled, phase III studies. In study 1, 111 adults with acromegaly received paltusotine or placebo. The primary endpoint was the proportion of participants achieving biochemical control (defined as insulin-like growth factor [IGF-1] and GH levels within the normal range). At 24 weeks, 56% of participants who received paltusotine had achieved biochemical control compared to 5% of participants who had received placebo. In study 2, 58 adults with acromegaly who were previously treated with and responded to other medical therapy received paltusotine or placebo. At 36 weeks, 83% of participants switching to paltusotine in study 2 maintained biochemical control compared to 4% of participants receiving placebo.

Society and culture

Legal status Paltusotine was approved for medical use in the United States in September 2025.

Names Paltusotine is the international nonproprietary name. Paltusotine is sold under the brand name Palsonify.

References

Further reading Gadelha, Monica R; Gordon, Murray B; Doknic, Mirjana; Mezősi, Emese; Tóth, Miklós; Randeva, Harpal; et al. (April 2023). "ACROBAT Edge: Safety and Efficacy of Switching Injected SRLs to Oral Paltusotine in Patients With Acromegaly". The Journal of Clinical Endocrinology & Metabolism. 108 (5): e148–e159. doi:10.1210/clinem/dgac643. PMC 10099171. PMID 36353760. S2CID 253445337. Madan, Ajay; Markison, Stacy; Betz, Stephen F.; Krasner, Alan; Luo, Rosa; Jochelson, Theresa; et al. (April 2022). "Paltusotine, a novel oral once-daily nonpeptide SST2 receptor agonist, suppresses GH and IGF-1 in healthy volunteers". Pituitary. 25 (2): 328–339. doi:10.1007/s11102-021-01201-z. PMC 8894159. PMID 35000098. Zhao, Jian; Wang, Shimiao; Markison, Stacy; Kim, Sun Hee; Han, Sangdon; Chen, Mi; et al. (January 2023). "Discovery of Paltusotine (CRN00808), a Potent, Selective, and Orally Bioavailable Non-peptide SST2 Agonist". ACS Medicinal Chemistry Letters. 14 (1): 66–74. doi:10.1021/acsmedchemlett.2c00431. PMC 9841592. PMID 36655128. Zhao, Jie; Fu, Hong; Yu, Jingjing; Hong, Weiqi; Tian, Xiaowen; Qi, Jieyu; et al. (February 2023). "Prospect of acromegaly therapy: molecular mechanism of clinical drugs octreotide and paltusotine". Nature Communications. 14 (1): 962. Bibcode:2023NatCo..14..962Z. doi:10.1038/s41467-023-36673-z. ISSN 2041-1723. PMC 9944328. PMID 36810324.

External links Clinical trial number NCT05192382 for "A Study to Evaluate the Safety and Efficacy of Paltusotine for the Treatment of Acromegaly (PATHFNDR-2) (PATHFNDR-2)" at ClinicalTrials.gov Clinical trial number NCT04837040 for "A Study to Evaluate the Safety and Efficacy of Paltusotine for the Treatment of Acromegaly (PATHFNDR-1)" at ClinicalTrials.gov

Illustrations

Worked examples

Example 1 — a first encounter with Paltusotine

Start with the simplest possible case. Write down what Paltusotine claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, 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 Paltusotine 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 Paltusotine 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 Paltusotine

In research: Paltusotine appears in chemistry 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 Paltusotine 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: Paltusotine is common in secondary-school and first-year university syllabi. It links to neighbouring topics 3,5-Difluorophenyl compounds, Amines, Benzonitriles, so understanding it makes those chapters shorter.
In everyday life: Look for Paltusotine 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 Paltusotine in 20 minutes

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

Frequently asked questions

What is Paltusotine in simple terms?

Paltusotine, sold under the brand name Palsonify, is a medication used for the treatment of acromegaly. It is a somatostatin receptor 2 agonist.

Why does Paltusotine matter?

Because it connects several chemistry 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 Paltusotine?

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 Paltusotine.