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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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Substance ALN-6457, of Regeneron Pharmaceuticals, has not yet been registered in Brazil and will be used exceptionally in the treatment of Lito Sousa after Einstein's request

This content was originally published in Agora RN - Rio Grande do Norte News Portal. Visit https://agorarn.com.br for more Christmas and RN news. The National Agency for Health Surveillance (Anvisa) authorized, on Friday 4, the importation and exceptional use of the experimental drug ALN-6457 for the treatment of the influencer Lito Sousa, 59 years old, diagnosed with Creutzfeldt-Jakob disease (DCJ). The drug is still in stage prior to clinical …

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

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