Bupivacaine formulation in a polyorthoester carrier
First Claim
1. An implantable drug depot useful for reducing, or treating pain in a patient in need of such treatment, the drug depot comprising a polyorthoester and bupivacaine, the drug depot adapted to be administered intraspinally in the patient to reduce, or treat pain, wherein the drug depot is capable of releasing bupivacaine for a period of at least 30 days after administration, wherein the bupivacaine has a particle size range of about 5 microns to 50 microns, comprises a surface for burst release of the bupivacaine, has a modulus of elasticity in the range of about 2×
- 104 to about 5×
105 dynes/cm2, and wherein the drug depot comprises mPEG.
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Accused Products
Abstract
Effective treatments of pain, such as chronic pelvic pain, for extended periods of time are provided. The treatments include the administration of one or more drug depots intraspinally wherein the drug depots include an effective amount of bupivacaine formulated within a polyorthoester. By administration of one or more drug depots, one can relieve pain caused by diverse sources, including but not limited to chronic pelvic pain syndromes, spinal disc herniation (i.e. sciatica), spondilothesis, stenosis, discongenic back pain and joint pain, as well as pain that is incidental to surgery. In some embodiments, the relief can be for at least thirty days, at least sixty days, at least one hundred days or at least one hundred and thirty-five days.
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Citations
21 Claims
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1. An implantable drug depot useful for reducing, or treating pain in a patient in need of such treatment, the drug depot comprising a polyorthoester and bupivacaine, the drug depot adapted to be administered intraspinally in the patient to reduce, or treat pain, wherein the drug depot is capable of releasing bupivacaine for a period of at least 30 days after administration, wherein the bupivacaine has a particle size range of about 5 microns to 50 microns, comprises a surface for burst release of the bupivacaine, has a modulus of elasticity in the range of about 2×
- 104 to about 5×
105 dynes/cm2, and wherein the drug depot comprises mPEG. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
- 104 to about 5×
Specification