Improved stability of dry powders containing tiotropium and amino acid
OwnerJean C. Sung, Jason M. Perry +1inventors
InventorsJean C. Sung, Jason M. Perry, Michael Tauber
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OwnerJean C. Sung, Jason M. Perry +1inventors
InventorsJean C. Sung, Jason M. Perry, Michael Tauber
Estimating the term…
The invention relates to, for example, a respirable dry powder that contains respirable dry particles that contains a tiotropium salt, one or more amino acids, sodium chloride, and optionally one or more additional therapeutic agents, where the tiotropium salt is about 0.01% to about 0.5%, the one or more amino acids is about 5% to about 40%, the sodium chloride is about 50% to about 90%, and the optional one or more additional therapeutic agents are up to about 30%, where all percentages are weight percentages on a dry basis and all the components of the respirable dry particles amount to 100%, and wherein the majority of the one or more amino acids are present in a crystalline state.
A respirable dry powder, comprising respirable dry particles that comprise a tiotropium salt, one or more amino acids, sodium chloride, and optionally one or more additional therapeutic agents, wherein the tiotropium salt is about 0.01% to about 0.5%, the one or more amino acids is about 5% to about 40%, the sodium chloride is about 50% to about 90%, and the optional one or more additional therapeutic agents are up to about 30%, wherein all percentages are weight percentages on a dry basis and all the components of the respirable dry particles amount to 100%, and wherein the majority of the one or more amino acids are present in a crystalline state.
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A respirable dry powder, comprising respirable dry particles that comprise a tiotropium salt, one or more amino acids, sodium chloride, and optionally one or more additional therapeutic agents, wherein the tiotropium salt is about 0.01% to about 0.5%, the one or more amino acids is about 5% to about 40%, the sodium chloride is about 50% to about 90%, and the optional one or more additional therapeutic agents are up to about 30%, wherein all percentages are weight percentages on a dry basis and all the components of the respirable dry particles amount to 100%, and wherein the enthalpy of recrystallization of the dry powder as measured by differential scanning calorimetry (DSC) is less than about 15 Joules per gram of amino acid.
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Dependencies are inferred from the claim text.