University of Pittsburgh

William E Klunk

Chester A Mathis, Jr

Yanming Wang

Jay W Pettegrew

Jr Chester A Mathis

This invention relates to novel thioflavin derivatives, methods of using the derivatives in, for example, in vivo imaging of patients having neuritic plaques, pharmaceutical compositions comprising the thioflavin derivatives and method of synthesizing the compounds. The compounds find particular use in the diagnosis and treatment of patients having diseases where accumulation of neuritic plaques are prevalent. The disease states or maladies include but are not limited to Alzheimer's disease, familial Alzheimer's disease, Down's Syndrome and homozygotes for the apolipoprotein E4 allele.

Thioflavin derivatives for use in antemortem diagnosis of Alzheimer's disease and in vivo imaging and prevention of amyloid deposition

This invention relates to novel thioflavin derivatives, methods of using the derivatives in, for example, in vivo imaging of patients having neuritic plaques, pharmaceutical compositions comprising the thioflavin derivatives and method of synthesizing the compounds. The compounds find particular use in the diagnosis and treatment of patients having diseases where accumulation of neuritic plaques are prevalent. The disease states or maladies include but are not limited to Alzheimer's Disease, familial Alzheimer's Disease, Down's Syndrome and homozygotes for the apolipoprotein E4 allele.

Thioflavin derivatives for use in the antemortem diagnosis of Alzheimer's disease and in vivo imaging and prevention of amyloid deposition

This invention provides benzothiazole derivative compounds, compositions comprising such compounds, methods of preparing such compounds, and methods of using such compounds for detecting amyloid deposit(s) and for diagnosing a disease, disorder or condition characterized by amyloid deposit(s).

Methods of using benzothiazole derivative compounds and compositions

Thioflavin derivatives for use in antemortem diagnosis of alzheimer's disease and in vivo imaging and prevention of amyloid deposition

Benzothiazole derivative compounds, compositions and uses

The present method for determining the efficacy of therapy in the treatment of amyloidosis involves administering to a patient in need thereof a compound of formula (I) or Formula (II) or structures 1-45 and imaging the patient. After said imaging, at least one anti-amyloid agent is administered to said patient. Then, an effective amount of a compound of formula (I) or Formula (II) or structures 1-45 is administered to the patient and the patient is imaged again. Finally, baseline levels of amyloid deposition in the patient before treatment with the anti-amyloid agent are compared with levels of amyloid deposition in the patient following treatment with the anti-amyloid agent.

Amyloid imaging as a surrogate marker for efficacy of anti-amyloid therapies

The present method for determining the efficacy of therapy in the treatment of amyloidosis involves administering to a patient in need thereof a compound of formula (I) or formula (II) or structures 1-45 and imaging the patient. After said imaging, at least one anti-amyloid agent is administered to said patient. Then, an effective amount of a compound of formula (I) or formula (II) or structures 1-45 is administered to the patient and the patient is imaged again. Finally, baseline levels of amyloid deposition in the patient before treatment with the anti-amyloid agent are compared with levels of amyloid deposition in the patient following treatment with the anti-amyloid agent.

Benzofuran compounds which contain at least one detectable label selected from the group consisting ofI,I,I,I,Br,Br,F,F,C,C,C andH are provided as amyloid imaging agents for detecting brain amyloid deposits as well as other amyloidogenic peptides associated with systemic or localized amyloidosis. Additionally, the compounds are useful for determining if patients, presenting with clinically confusing cases of dementia or presenting with mild cognitive impairment, have Alzheimer's disease. The compounds are additionally useful as surrogate markers for monitoring the efficacy of anti-amyloidosis therapies. 

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Pittsburgh, PA, United States of America

William E Klunk