Stable cannabinoid-comprising nanoemulsions and methods of using the same
The present application relates to the field of nanoemulsions, in particular, cannabinoid-comprising nanoemulsions. The present disclosure provides cannabinoid (e.g., THC, CBD, CBDi or combinations of THC and CBD) comprising nanoemulsions that may optionally further comprise cyclosporine as methods of using the disclosed nanoemulsions to treat ophthalmic conditions such as dry eye. The disclosed formulations have significantly improved pharmaceutical stability in a variety of tested conditions when compared to conventional formulations.
1. A nanoemulsion formulation, comprising:
(a) a pharmaceutically acceptable oil selected from olive oil, sesame and medium chain triglycerides, said oil having less than one part per million of each of copper, chromium, lithium and molybdenum; and
(b) a cannabinoid or a salt or derivative thereof dissolved in the pharmaceutically acceptable oil; the cannabinoid or salt or derivative thereof having a weight percentage of up to 45% of the nanoemulsion formulation,
wherein said cannabinoid or salt or derivative thereof in the nanoemulsion formulation is stable for at least 4 months when measured under accelerated chamber conditions.
2. The nanoemulsion formulation of claim 1 , further comprising a pharmaceutically active agent.
3. The nanoemulsion formulation of claim 2 , wherein the pharmaceutically active agent is cyclosporine, salts thereof or derivatives thereof and the nanoemulsion further comprises a solvent, a surfactant and an aqueous phase, wherein cyclosporine or salt or derivative thereof is (i) dissolved in globules of the pharmaceutically acceptable oil and (ii) as solid nanoparticles suspended in the aqueous phase.
4. The nanoemulsion formulation of claim 3 , wherein the cyclosporine or salt or derivative thereof is about 0.05% w/w to about 5% w/w of the nanoemulsion formulation.
5. The nanoemulsion formulation of claim 4 , wherein the cannabidiol is up to 2% w/w of the formulation, the tetrahydrocannabinol is up to 3% w/w of the formulation, and the cyclosporine or a salt or a derivative is up to about 0.1% w/w of the nanoemulsion formulation.
6. The nanoemulsion formulation of claim 3 , wherein, the tetrahydrocannabinol is up to 2% w/w of the formulation and the cyclosporine or salt or derivative is up to 0.1% w/w of the nanoemulsion formulation.
7. The nanoemulsion formulation of claim 3 , wherein the solvent is about 0.2% w/w to about 20% w/w of the nanoemulsion formulation.
8. The nanoemulsion formulation of claim 3 , wherein the surfactant is about 0.5% w/w to about 25% w/w of the nanoemulsion formulation.
9. The nanoemulsion formulation of claim 3 , wherein there are at least two cannabinoids and
the cyclosporine is present in amount of about 0.05% w/w to about 5% w/w.
10. The nanoemulsion formulation of claim 1 , wherein said formulation has less than 10% degradation after 3 months at room temperature.
11. The nanoemulsion formulation of claim 1 , wherein the pharmaceutically acceptable oil is olive oil.
12. The nanoemulsion formulation of claim 1 , wherein the pharmaceutically acceptable oil is olive oil and the amount of cannabinoid is from about 0.01% and about 10% w/w.
13. The nanoemulsion of claim 12 , wherein the cannabinoid is cannabidiol isolate CBDi.