Controlled administration of chemodenervating pharmaceuticals
First Claim
1. A method of standardizing dosages of a chemodenervating preparation by relating extent of denervation in a muscle or muscle group of an experimental animal to a unit quantity of said preparation comprising the steps of injecting a unit quantity of said preparation into said muscle or muscle group of an experimental animal, permitting said preparation to diffuse within said muscle or muscle group about the site of said injection and to physiologically inhibit acetylcholine release, and determining the spatial extent of inhibition of acetylcholine release about the site of injection within said muscle or group per said unit quantity of said preparation, thereby providing a reliable indicator to a clinician of a volume of said muscle or muscle group which is denervated by a quantity of said preparation.
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Accused Products
Abstract
This invention relates to a method for controlled administration of chemodernervating agents such as botulinum toxin-derived pharmaceutical, useful in attenuating neural stimulation and spasmotic activity of muscle. The method involves administration of novel dosage forms based upon the standardization of denervating pharmaceuticals. The invention also relates to novel methods of administering chemodernervating agents in a controlled and reproducible manner so as to confine their effects to a given region of muscle mass while minimizing paresis in adjacent muscle tissue.
162 Citations
15 Claims
- 1. A method of standardizing dosages of a chemodenervating preparation by relating extent of denervation in a muscle or muscle group of an experimental animal to a unit quantity of said preparation comprising the steps of injecting a unit quantity of said preparation into said muscle or muscle group of an experimental animal, permitting said preparation to diffuse within said muscle or muscle group about the site of said injection and to physiologically inhibit acetylcholine release, and determining the spatial extent of inhibition of acetylcholine release about the site of injection within said muscle or group per said unit quantity of said preparation, thereby providing a reliable indicator to a clinician of a volume of said muscle or muscle group which is denervated by a quantity of said preparation.
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8. A method of selectively chemically partially denervating a predetermined volume of a muscle or muscle group without inducing significant paresis in muscle tissue adjacent said predetermined volume, the method comprising the steps of:
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providing a chemodenervating pharmaceutical characterized in that a unit quantity of said pharmaceutical has been determined to denervate said predetermined volume of a muscle or muscle group; determining a dose of said pharmaceutical required to denervate the predetermined volume of muscle without inducing significant paresis in muscle tissue adjacent said predetermined volume; injecting said dose directly into a point within said predetermined volume; and permitting said dose to diffuse throughout said predetermined volume to induce partial denervation thereof. - View Dependent Claims (9, 10, 11)
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12. A method of decreasing spasm or involuntary contraction in a muscle or group of muscles of a patient induced by pathologic neural stimulation caused by cerebral palsy or multiple sclerosis, the method comprising:
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providing a chemodenervating pharmaceutical characterized in that a unit quantity of said pharmaceutical has been determined to denervate a predetermined volume of said muscle or muscle group; determining a dose of said pharmaceutical required to denervate the predetermined volume of muscle without inducing significant paresis in muscle tissue adjacent said predetermined volume; injecting directly into a point of said muscle or muscle group of said patient suffering from cerebral palsy or multiple sclerosis said dose of said chemodenervating pharmaceutical to decrease the spasm and involuntary contraction in said muscle or muscle group. - View Dependent Claims (15)
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13. A method of decreasing tremor, rigidity or spasticity in a muscle or group of muscles of a patient afflicted with Parkinson'"'"'s disease, the method comprising:
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providing a chemodenervating pharmaceutical characterized in that a unit quantity of said pharmaceutical has been determined to denervate a predetermined volume of said muscle or muscle group; determining a dose of said pharmaceutical required to denervate the predetermined volume of muscle without inducing significant paresis in muscle tissue adjacent said predetermined volume; injecting directly into said muscle or muscle group of said patient afflicted with Parkinson'"'"'s disease said dose of said pharmaceutical to decrease said rigidity or spasticity in said muscle or muscle group.
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14. A method of cosmetically decreasing facial wrinkling in a patient induced by contraction of an underlying facial muscle or group of muscles, the method comprising:
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providing a chemodenervating pharmaceutical characterized in that a unit quantity of said pharmaceutical has been determined to denervate a predetermined volume of said muscle or muscle group; determining a dose of said pharmaceutical required to denervate the predetermined volume of muscle without inducing significant paresis in muscle tissue adjacent said predetermined volume; injecting directly into said facial muscle or muscle group of said patient having said wrinkling said dose of said pharmaceutical to denervate said muscle thereby temporarily reducing the wrinkling caused by contraction of said muscle or muscle group.
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Specification