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Sodium Oligomannate: First Approval

A Correction to this article was published on 24 February 2020

This article has been updated


Sodium oligomannate (九期一®; GV-971) is a marine algae-derived oral oligosaccharide being developed by Shanghai Green Valley Pharmaceuticals for the treatment of Alzheimer’s disease (AD). Sodium oligomannate received its first approval in November 2019 in China for the treatment of mild to moderate AD to improve cognitive function. This article summarizes the milestones in the development of sodium oligomannate leading to this first approval for AD.

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  • 24 February 2020

    The first sentence, which currently reads: “Sodium oligomannate is produced by depolymerizing propylene glycol alginate sodium sulfate followed by oxidation, leaving carboxyl group at the reduced end [11].”


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Correspondence to Yahiya Y. Syed.

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The preparation of this review was not supported by any external funding.

Conflict of interest

During the peer review process the manufacturer of the agent under review was offered an opportunity to comment on the article. Changes resulting from any comments received were made by the authors on the basis of scientific completeness and accuracy. Yahiya Syed is a salaried employee of Adis International Ltd/Springer Nature, is responsible for the article content and declares no relevant conflicts of interest.

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Enhanced material for this AdisInsight Report can be found at This profile has been extracted and modified from the AdisInsight database. AdisInsight tracks drug development worldwide through the entire development process, from discovery, through pre-clinical and clinical studies to market launch and beyond.

The original has been updated: Due to textual changes.

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Syed, Y.Y. Sodium Oligomannate: First Approval. Drugs 80, 441–444 (2020).

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