In vitro and xenograft anti-tumor activity of a halogenated-xanthene against refractory pediatric solid tumors

US12377068B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12377068-B2
Application numberUS-202418642051-A
CountryUS
Kind codeB2
Filing dateApr 22, 2024
Priority dateMay 16, 2018
Publication dateAug 5, 2025
Grant dateAug 5, 2025

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A method of treating a pediatric cancerous solid tumor in a mammalian subject is disclosed that comprises intralesionally administering an amount of a halogenated xanthene or a pharmaceutically acceptable salt thereof, preferably Rose Bengal disodium, that elicits ablation of tumor cells of the administered tumor. Another contemplated method comprises the steps of intralesionally administering an amount of a halogenated xanthene or a pharmaceutically acceptable salt thereof, preferably Rose Bengal disodium, that elicits ablation of tumor cells of the administered tumor and systemically administering a tumor-inhibiting effective amount of a systemic anti-cancer medication that provides synergistic cytotoxicity with the halogenated xanthene. The two administrations can occur concurrently, or one prior to the other.

First claim

Opening claim text (preview).

The invention claimed is: 1. A method of treating a pediatric cancerous solid tumor selected from one or more of the group consisting of Ewing sarcoma, neuroblastoma, osteosarcoma, neuroepithelioma, and rhabdomyosarcoma in a mammalian subject that comprises (1) intralesionally administering an amount of rose bengal or a pharmaceutically acceptable salt thereof that elicits ablation of tumor cells and (2) administering a tumor-inhibiting effective amount of one or more checkpoint inhibitor antibodies that binds with the PD-1 receptor, the PD-L1 receptor, or the CTLA-4 receptor. 2. The method according to claim 1 , wherein said rose bengal is rose bengal disodium. 3. The method according to claim 1 , wherein said intralesional administration of rose bengal or a pharmaceutically acceptable salt thereof occurs prior to administration of said one or more checkpoint inhibitor antibodies. 4. The method according to claim 1 , wherein said intralesional administration of rose bengal or a pharmaceutically acceptable salt thereof occurs after administration of said one or more checkpoint inhibitor antibodies. 5. The method according to claim 1 , wherein said intralesional administration of rose bengal or a pharmaceutically acceptable salt thereof occurs concurrent with administration of said one or more checkpoint inhibitor antibodies. 6. The method according to claim 1 , wherein said mammal is a human.

Assignees

Inventors

Classifications

  • A61K31/352Primary

    condensed with carbocyclic rings, e.g. methantheline  {(cannabinoids A61K31/658)} · CPC title

  • against CD28 or CD152 · CPC title

  • against B7 molecules, e.g. CD80, CD86 · CPC title

  • Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca · CPC title

  • Heavy metals; Compounds thereof · CPC title

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What does patent US12377068B2 cover?
A method of treating a pediatric cancerous solid tumor in a mammalian subject is disclosed that comprises intralesionally administering an amount of a halogenated xanthene or a pharmaceutically acceptable salt thereof, preferably Rose Bengal disodium, that elicits ablation of tumor cells of the administered tumor. Another contemplated method comprises the steps of intralesionally administering …
Who is the assignee on this patent?
Provectus Pharmatech Inc, Uti Lp
What technology area does this patent fall under?
Primary CPC classification A61K31/352. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Aug 05 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).