Zoetis stock rises after FDA conditionally approves screwworm drug

Published 30/09/2025, 19:20
© Reuters.

Investing.com -- Zoetis Inc (NYSE:ZTS) stock rose 2.4% on Tuesday after the U.S. Food and Drug Administration conditionally approved the company’s drug for the prevention and treatment of New World screwworm infestations in cattle.

The FDA granted conditional approval for Dectomax-CA1, an injectable solution containing doramectin, making it the first approved drug in the U.S. for New World screwworm (NWS). The medication will prevent and treat NWS larval infestations and prevent reinfestation for up to 21 days in cattle.

"We understand the urgency with which America’s farmers and ranchers are asking for tools to fight New World screwworm," said FDA Commissioner Marty Makary in the announcement. "Today’s conditional approval – the first in the U.S. for NWS – shows our dedication to rapidly advancing important animal medicines when they are needed most."

The drug received conditional approval because it addresses a serious disease and an unmet animal health need, while demonstrating its effectiveness would require complex studies. Under this status, the FDA determined the drug is safe with a reasonable expectation of effectiveness.

Dectomax-CA1 contains the same active ingredient as Zoetis’s already-approved Dectomax product, which is used to treat certain nematode and arthropod parasites in cattle and swine. The conditional approval allows cattle producers immediate access to the treatment while Zoetis collects additional data needed for full approval.

The Michigan-based animal health company’s drug will be available in 250 mL and 500 mL bottles, with a 35-day withdrawal period required before treated cattle can enter the food supply.

This article was generated with the support of AI and reviewed by an editor. For more information see our T&C.

Latest comments

Risk Disclosure: Trading in financial instruments and/or cryptocurrencies involves high risks including the risk of losing some, or all, of your investment amount, and may not be suitable for all investors. Prices of cryptocurrencies are extremely volatile and may be affected by external factors such as financial, regulatory or political events. Trading on margin increases the financial risks.
Before deciding to trade in financial instrument or cryptocurrencies you should be fully informed of the risks and costs associated with trading the financial markets, carefully consider your investment objectives, level of experience, and risk appetite, and seek professional advice where needed.
Fusion Media would like to remind you that the data contained in this website is not necessarily real-time nor accurate. The data and prices on the website are not necessarily provided by any market or exchange, but may be provided by market makers, and so prices may not be accurate and may differ from the actual price at any given market, meaning prices are indicative and not appropriate for trading purposes. Fusion Media and any provider of the data contained in this website will not accept liability for any loss or damage as a result of your trading, or your reliance on the information contained within this website.
It is prohibited to use, store, reproduce, display, modify, transmit or distribute the data contained in this website without the explicit prior written permission of Fusion Media and/or the data provider. All intellectual property rights are reserved by the providers and/or the exchange providing the data contained in this website.
Fusion Media may be compensated by the advertisers that appear on the website, based on your interaction with the advertisements or advertisers
© 2007-2025 - Fusion Media Limited. All Rights Reserved.