(12) Patent Application Publication (10) Pub. No.: US 2011/0269704 A1 Seigfried (43) Pub
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US 20110269.704A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2011/0269704 A1 Seigfried (43) Pub. Date: Nov. 3, 2011 (54) METHOD FOR DEVELOPING ALIQUID A6IP 23/02 (2006.01) COMPOSITION TO BEAPPLIED TO THE A6II 3/196 (2006.01) SKNASA FOAMAND ACOMPOSITION A6IP 29/00 (2006.01) THAT CAN BE APPLIED TOPCALLY A6IP3L/00 (2006.01) A6IP3L/04 (2006.01) (76) Inventor: Bernd G. Seigfried, Limburgerhof A63L/92 (2006.01) (DE) A6II 3/474 (2006.01) (21) Appl. No.: 13/143,740 (52) U.S. Cl. ........... 514/29: 514/570; 514/626; 514/179; 514/396; 514/567 (22) PCT Filed: Jul. 16, 2010 (86). PCT No.: PCT/DE2O1 O/OOO818 (57) ABSTRACT A liquid pharmaceutical composition to be applied to the skin S371 (c)(1), as a foam and that has at least one solvent, at least one active (2), (4) Date: Jul. 8, 2011 pharmaceutical ingredient, and at least one foaming agent. The foam volume and the foam stability are determined (30) Foreign Application Priority Data according to a standardized SITA measuring method. The foaming agent, the solvent, and the active pharmaceutical Jul. 24, 2009 (DE) ...................... 10 2009 O34 603.1 ingredient are varied in regard to the chemical type and/or concentration thereof until the foam thus produced by the Publication Classification SITA measuring method has a foam volume of at least 400 ml (51) Int. Cl. and such foam stability that after a dwell time of up to ten A6 IK3I/7048 (2006.01) minutes the foam still has at least 50% of the foam volume A6 IK3I/I67 (2006.01) that originally existed immediately after the foam was pro A 6LX 3/573 (2006.01) duced. Patent Application Publication Nov. 3, 2011 Sheet 1 of 18 US 2011/0269.704 A1 12OO 1OOO 800 run----------------as-s-s-s-s-s-s-s-s-s E -- 1st measurement E 600 i -- 2: 83.Stiteriesav 3ri eastesses s E 400 es S 2OO O O.O 5.0 1O.O 15.0 2O.O 25.0 3O.O. 35.0 time (min) Figure 1 Patent Application Publication Nov. 3, 2011 Sheet 2 of 18 US 2011/0269.704 A1 12OO OOO re-t-to----- -- ist measurement 3rd easiest 8OO is essesses S 6OO S Eg E 4OO t S 2OO O O.O 5.0 O.O 15.O 2O.O 25.0 3OO 35.0 time (min) Figure 2 Patent Application Publication Nov. 3, 2011 Sheet 3 of 18 US 2011/0269.704 A1 12OO 1OOO 8OO wn. S. 6OO -- 1st measurement -- ci easterest 400 a 3rd measurement e : E s O *H 200 O O.O 5.0 1O.O. 150 2O.O 25.O. 3O.O 35.O time (min) Figure 3 Patent Application Publication Nov. 3, 2011 Sheet 4 of 18 US 2011/0269.704 A1 1200 1000 SOO St SeaStreet was 2d easurement a 3rd measurement O.O 5.O 1O.O 15.O 2O.O 25.0 3O.O 35.0 time (min) Figure 4 Patent Application Publication Nov. 3, 2011 Sheet 5 of 18 US 2011/0269.704 A1 1200 1OOO 8OO 1st measurement g was 2nd reasurement ''d 600 -- 3rd3. measurement3S S 400 --- s O 2OO O O.O 5.0 10.0 15.O. 2O.O 25.0 3O.O 35.0 time (min) FigureiOIIIA 5is Patent Application Publication Nov. 3, 2011 Sheet 6 of 18 US 2011/0269.704 A1 12OO 1OOO 800 o 6OO -- St SeaStreite was 2nd measurement : 4OO was 3' east eiteit 9 2OO O O.O 5.0 1O.O 150 2O.O 25.O 3O.O 35.0 time (min) Figure 6 Patent Application Publication Nov. 3, 2011 Sheet 7 of 18 US 2011/0269.704 A1 1200 1OOO 8OO a 600 co------------ist easiere area is feasiefet oe 400 wa.-- 3rds f{ measurementi &isie & S. 2OO O O.O. 5.O. 1O.O 15.O. 2O.O 25.0 3.O.O 35.O time (min) Figure 7 Patent Application Publication Nov. 3, 2011 Sheet 8 of 18 US 2011/0269.704 A1 12OO 1OOO 8OO -- ist measurement was 2 easisi seriest E 600 | -- 3rd- - measurementcasus is is E Eg E 4OO r 9 2OO O O.O. 5.O 1O.O 15.O 2O.O 25.0 3O.O 35.O time (min) Figure 8 Patent Application Publication Nov. 3, 2011 Sheet 9 of 18 US 2011/0269.704 A1 1400 1200 OOO - 2nd measurement 6OO ... 3rd yeastfeet g 400 S 2OO O O.O 5.O 1O.O 15.0 O.O 25.0 3O.O 35.0 time (min) Figure 9 Patent Application Publication Nov. 3, 2011 Sheet 10 of 18 US 2011/0269.704 A1 12OO 1OOO 800 E 600 ~~~~~~~~~-- 1st measurement | -- 2: Yeastesters s 400 is...was...........:-- 3rd measurement es S 2OO O O.O 5.0 1O.O 15.O 2O.O. 25.0 3O.O 35.0 time (min) Figure 10 Patent Application Publication Nov. 3, 2011 Sheet 11 of 18 US 2011/0269.704 A1 1200 1OOO ... is easietet x - 2c teasefiest 3' sease et 8OO -- S 600 4 O O 2OO O O.O 5.0 1O.O 15.0 2O.O 25.O 3O.O. 35.0 time (min) Figure 11 Patent Application Publication Nov. 3, 2011 Sheet 12 of 18 US 2011/0269.704 A1 12OO OOO 800 =:::::::::::::::::::::::::= S. w 600 i -- 1st measurement E -- 388 iéaSietet Oce ... 3: Seasierest 400 : s t 3 2OO O O.O 5.O 1O.O. 15.O. 2O.O. 250 3OO 350 time (min) Figure 12 Patent Application Publication Nov. 3, 2011 Sheet 13 of 18 US 2011/0269.704 A1 12OO OOO 800 -- is easiest s -- 28 seasteries: E six 3 easiliesert 600 - -...................... E E g 400 E 9es S. 2OO O O.O 50 1O.O 15.O. 2O.O 25.O 30.0 35. time (min) Figure 13 Patent Application Publication Nov. 3, 2011 Sheet 14 of 18 US 2011/0269.704 A1 12OO 1OOO FrrarierRealeries-le-a==as-s-s-s 8OO f S 6OO | -- 1st measurement E saw is easiere g 400 ... 3ic east see S. 2OO O l O.O 5.O 1O.O 15.O 2O.O 25.O 3O.O 35.O time (min) Figure 1-4 Patent Application Publication Nov. 3, 2011 Sheet 15 of 18 US 2011/0269.704 A1 12OO OOO 8OO 600 is ist measurement E E ene 2c feasiertei g was 3' easterest E 400 i. s S. 2OO O O.O 5.0 1O.O 15.O 2O.O 25.O 3O.O 35.0 time (min) Figure 15 Patent Application Publication Nov. 3, 2011 Sheet 16 of 18 US 2011/0269.704 A1 12OO 1OOO 8OO g 600 -- is measurerrent were 2 &as 88. g 400 x 3x seases: make it easiester S. were it 2OO Wana O O.O 5.0 1 O.O. 15.0 2O.O. 25.0 3O.O. 35.0 time (min) Figure 16 Patent Application Publication Nov. 3, 2011 Sheet 17 of 18 US 2011/0269.704 A1 12OO 1OOO 8OO F or a 600 is is assireiteit 5 -- 3: easterest g ss. 3 seasis'éties 400 . t S 2OO O O.O 5.O 1O.O 15.0 2O.O 25.0 3O.O 35.0 time (min) Figure 17 Patent Application Publication Nov. 3, 2011 Sheet 18 of 18 US 2011/0269.704 A1 1200 1OOO S 600 -- is east resert 5 -- 3rd easterest eo 400 sa. 3's1&S easierest r S 2OO O O.O 5.O 1O.O 15.O 2O.O 25.O 3O.O 35.O time (min) Figure 18 US 2011/0269.704 A1 Nov. 3, 2011 METHOD FOR DEVELOPING ALIQUID sive and may suffer from a drawback such that a foam differ COMPOSITION TO BE APPLIED TO THE ing in composition and essentially inhomogeneous can result SKNASA FOAMAND A COMPOSITION from varying the configuration of the aforementioned param THAT CAN BE APPLIED TOPCALLY eters of the mechanical foam applicator. 0008 Thus, one underlying problem of the present inven tion is to provide a method for the development of a liquid 0001. The present invention is directed in part to a method pharmaceutical composition to be applied as foam to the skin, for making or developing liquid pharmaceutical composi by which the development time for such pharmaceutical com tions to be applied as a foam to the skin with the features of the positions is Substantially simplified and shortened. preamble of the patent claim 1 as well as a corresponding 0009 Further, another underlying problem of the present topically applicable compositions with the features of the invention is to provide a topically applicable composition that preamble of the patent claim 9. can be applied as foam and that contains a systemically or 0002 Topically applied pharmaceutical compositions that topically acting pharmaceutical active ingredient, whereby exist in the liquid state and are present as a foam when applied this topically applicable composition is developed preferably are familiar. For example, EP 0510561 B1 describes one by the aforementioned development process. Such pharmaceutical composition applied as foam, wherein 0010. The first stated problem is solved by a method the basic liquid used in the known pharmaceutical composi according to the characteristics of the patent claim 1 and the tion is foamed exclusively by mechanical action. The basic further problem, which is mentioned subsequently, is solved liquid composition that is mechanically foamed contains, as by a topically applicable composition with the features of the ingredients, a surfactant as the foaming agent, a solvent or preamble of the patent claim 9.