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Anvisa Authorises the Import of Experimental Medicinal Product for Lito Sousa

Summary
Anvisa authorized the import and use of the experimental drug ALN-6457 (siRNA conjugated to C16 directed to prionic protein) on Friday, 4 exceptionally for the treatment of the influencer Lito Sousa, who was diagnosed with

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Lito was included in the company's compassionate use program and will receive the substance in Brazil.

·Rio de Janeiro, Brazil
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Influencer with Creutzfeldt-Jakob disease will be the first to receive the substance

·São Paulo, Brazil
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The influencer Lito Sousa will be the first patient in the world to use the experimental drug ALN-6457 in the treatment of Creutzfeldt-Jakob disease. The National Agency for Health Surveillance (Anvisa) authorized the import of the substance on Friday (4), in response to an exceptional request. The release took place through a special process, because the [...]

Exceptional authorization allows importation of therapy still under development for the influencer, diagnosed with Creutzfeldt-Jakob disease

The Agency has granted exceptional authorization for the influencer to receive treatment still being tested in the United States; the drug has already shown efficacy in animals and will be evaluated in humans for the first time. The National Health Surveillance Agency (Anvisa) authorized, on Friday (4), the import of an experimental drug for the influencer Lito Sousa, diagnosed [...]

Anvisa (National Health Surveillance Agency) authorized on Friday (4) the importation and use, on an exceptional basis, of an experimental medicine for the treatment of the influencer Lito Sousa, who recently received a diagnosis of Creutzfeldt-Jakob disease (DCJ), a rare and unhealed neurodegenerative condition. Read more (09/04/2026

·São Paulo, Brazil
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CNN Brasil broke the news in São Paulo, Brazil on Friday, September 4, 2026.
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