Salts and solid forms of (R)-1-(5-methoxy-1H-indol-1-yl)-N,N-dimethylpropan-2-amine

Inventors

Duncton, MatthewClark, Samuel

Assignees

Terran Biosciences Inc

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Publication Number

US-12319652-B2

Patent

Publication Date

2025-06-03

Expiration Date


Abstract

The present disclosure is directed to salt and solid forms of (R)-1-(5-METHOXY-1H-INDOL-1-YL)-N,N-DIMETHYLPROPAN-2-AMINE and methods of treating neurological disorder and/or a psychiatric disorder in a subject in need thereof.

Core Innovation

The disclosure relates to salts and solid forms of (R)-1-(5-methoxy-1H-indol-1-yl)-N,N-dimethylpropan-2-amine, referred to as compound 1, with emphasis on fumarate, including monofumarate and hemifumarate, and on crystalline polymorphic forms of the compound 1 monofumarate salt. The crystalline polymorphic form is characterized by XRPD/PXRD signals at selected 2θ values measured with Cu Kα radiation within stated tolerances, and the identification is supported by extensive XRPD tables, alternative signal combinations, and figure-referenced profiles. The disclosure further distinguishes crystalline polymorphic forms from amorphous forms and uses solvate/hydrate distinctions in solid-state characterization.

The invention further characterizes the crystalline polymorphic salt by orthogonal solid-state metrics including DSC melting signals and TGA onset features. It also describes alternative salt forms of compound 1, including sulfate, ascorbate, mesylate, esylate, phosphate, edisylate, adipate, and tartrate salt, with amorphous/crystalline designation and pattern similarity to specific figures. Example solid-form identifiers are provided for compound 1 monofumarate Form A using XRPD/DSC/TGA characterization and referenced figure/table information.

The disclosure places these solid forms in a pharmaceutical context, including pharmaceutical compositions comprising the disclosed solid forms with pharmaceutically acceptable carrier and/or excipients. It also describes use for brain, neurological, and/or psychiatric disorders, including methods of treatment by administering the disclosed compound 1 solid form to a subject in need.

Claims Coverage

The independent claims cover crystalline polymorphic forms of the compound 1 monofumarate salt defined by XRPD signal sets measured with Cu Kα radiation and stated 2θ tolerances. Across the independent claims, the inventive features center on XRPD-defined polymorph criteria, with dependent claims adding expanded or table-referenced XRPD signal sets, DSC/TGA characterization, pharmaceutical compositions, and treatment methods for brain, neurological, and/or psychiatric disorders.

Xrpd-defined crystalline polymorphic monofumarate form

A (R)-1-(5-methoxy-1H-indol-1-yl)-N,N-dimethylpropan-2-amine (compound 1) monofumarate salt characterized by XRPD signals at two signals or more, or three signals, selected from specified 2θ values with stated tolerances using Cu Kα radiation.

Xrpd-defined crystalline polymorphic monofumarate form with alternative signal sets

A (R)-1-(5-methoxy-1H-indol-1-yl)-N,N-dimethylpropan-2-amine (compound 1) monofumarate salt as a crystalline polymorphic form characterized by alternative XRPD signal sets at specified 2θ values with stated tolerances using Cu Kα radiation.

Thermal characterization constrained by dsc and tga profiles

The crystalline polymorphic form characterized by specific DSC melting signals and a specific TGA onset temperature, and by DSC/TGA/XRPD profiles substantially similar to referenced figures.

Pharmaceutical composition comprising the monofumarate salt and excipient

A pharmaceutical composition comprising the compound 1 monofumarate salt and a pharmaceutically acceptable excipient.

Method of treating brain, neurological, and/or psychiatric disorders by administration

A method of treating a brain, neurological, and/or psychiatric disorder by administering the compound 1 monofumarate salt to a subject in need thereof.

Overall, claim coverage centers on defining specific crystalline polymorphic forms of compound 1 monofumarate by XRPD signal position criteria under Cu Kα radiation with stated tolerances, with dependent claim refinements that broaden or specify acceptable XRPD signal combinations and add DSC/TGA characterization. The claim set additionally covers pharmaceutical compositions containing the defined salt and therapeutic methods for treating brain, neurological, and/or psychiatric disorders by administration.

Stated Advantages

Improved crystallographic quality for the selected crystalline compound 1·HCl.

Chemical/physical stability at 40°C/75% RH.

High solubility/dispersibility in simulated intestinal fluid buffers.

No disproportionation in the reported simulated intestinal fluid buffer evaluation.

Nomination of compound 1·HCl for polymorph screening supported by equilibrium humidity stability data.

Improved solid forms to address formulation and manufacturability difficulties associated with literature-made fumarate existing as a non-crystalline gel.

Documented Applications

Pharmaceutical composition comprising the compound 1 monofumarate salt and a pharmaceutically acceptable excipient.

Treating a brain, neurological, and/or psychiatric disorder by administering the compound 1 monofumarate salt to a subject in need.

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