Prosecution Insights
Last updated: April 19, 2026
Application No. 18/279,517

THE USE OF EMPAGLIFLOZIN FOR THE TREATMENT OF ULCERATIVE COLITIS AND CROHN'S DISEASE

Non-Final OA §103
Filed
Aug 30, 2023
Examiner
SCHACHERMEYER, SAMANTHA LYNN
Art Unit
1693
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
The Governors of the University of Alberta
OA Round
1 (Non-Final)
37%
Grant Probability
At Risk
1-2
OA Rounds
3y 7m
To Grant
99%
With Interview

Examiner Intelligence

Grants only 37% of cases
37%
Career Allow Rate
10 granted / 27 resolved
-23.0% vs TC avg
Strong +72% interview lift
Without
With
+71.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 7m
Avg Prosecution
46 currently pending
Career history
73
Total Applications
across all art units

Statute-Specific Performance

§101
5.2%
-34.8% vs TC avg
§103
41.4%
+1.4% vs TC avg
§102
17.7%
-22.3% vs TC avg
§112
28.9%
-11.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 27 resolved cases

Office Action

§103
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . DETAILED ACTION Preliminary amendment filed on 08/30/2023 is acknowledged. Claim 3 was amended, claims 4-8 were cancelled and claim 11 was newly added. Claims 1-3 and 9-11 are pending in the instant application and are examined on the merits herein. Priority This application is a National Stage Application of PCT/CA2022/050297, filed on 03/03/2022 and claims benefit of 63/156,537 filed on 03/04/2021. Information Disclosure Statement The information disclosure statement (IDS) dated 05/31/2024 complies with the provisions of 37 CFR 1.97, 1.98 and MPEP § 609. Accordingly, the IDS document has been placed in the application file and the information therein has been considered as to the merits. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 1-3 and 9-11 are rejected under 35 U.S.C. 103 as being unpatentable over Depaoli et al. (WO 2020/214753 A1, published 10/22/2020, see IDS dated 05/31/2024). Depaoli is drawn to a method of modulating bile or treating a bile acid-related or associated disorder, comprising administering a chimeric peptide sequence and administering at least one additional agent effective in modulating bile acid homeostasis or treating a bile acid-related or associated disorder (claim 1). Depaoli teaches that the bile acid related or associated disorders include inflammatory bowel diseases such as Crohn’s disease and ulcerative colitis (claim 60). The at least one additional agent may be empagliflozin (claim 97). Depaoli teaches that the additional agent(s) are present in a therapeutically acceptable amount (paragraph 00319). Regarding instant claims 3 and 11, Depaoli teaches the method may delay, slow or inhibit progression of a bile acid-related or associated disorder in a subject and the subject may be human (paragraphs 00184-00185). Regarding instant claims 9 and 10, Depaoli teaches kits that include peptide sequences and one or more additional agents for the treatment of a bile acid-related disease, disorder or condition, or a composition comprising the foregoing, and one or more pharmaceutically acceptable or physiologically acceptable diluents, carriers or excipients, packaged into suitable packaging material. Exemplary instructions include instructions for treatment and/or prevention of a bile acid related or associated disorder, such as Crohn’s disease and ulcerative colitis (paragraph 00360). The kit may additionally include other components such as a container (paragraph 00366). Depaoli does not exemplify the treatment of Crohn’s disease or ulcerative colitis by administering a therapeutically effective amount of empagliflozin. Depaoli does not exemplify a kit comprising empagliflozin. It would have been prima facie obvious before the effective filing date of the claimed invention to select empagliflozin as the additional agent administered in the method of treating Crohn’s disease or ulcerative colitis in a subject as taught by Depaoli to arrive at the claimed invention. It would have been prima facie obvious for one of ordinary skill in the art to select empagliflozin as the additional agent administered in the method of treating Crohn’s disease or ulcerative colitis in a subject because Depaoli teaches that empagliflozin may be selected as the additional agent. One of ordinary skill in the art would have a reasonable expectation of success because Depaoli teaches a method of treating Crohn’s disease or ulcerative colitis that comprises the administration of an additional agent such as empagliflozin. Regarding instant claims 9 and 10, it would have been prima facie obvious before the effective filing date of the claimed invention to prepare a kit based on the prior art of Depaoli to arrive at the claimed invention. It would have been prima facie obvious to one of ordinary skill in the art to prepare a kit based on the prior art because Depaoli teaches a kit and further, the grouping together of various objects or compositions directed to a common purpose (i.e. forming a kit) when all the individual objects or compositions are prima facie obvious over the prior art does not make the kit patentable. The idea of preparing a kit based on a prima facie obvious composition flows logically from the perspective of providing organization, convenience and quality control. See In re Ngai, 367 F.3d 1336, 1339, 70 USPQ2d 1862, 1864 (Fed. Cir. 2004). Conclusion No claims allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SAMANTHA LYNN SCHACHERMEYER whose telephone number is (703)756-5337. The examiner can normally be reached Monday thru Friday, alternate Fridays off, 7:30AM-5PM EST. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Scarlett Goon can be reached on (571) 270-5241. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300.Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /SAMANTHA LYNN SCHACHERMEYER/Examiner, Art Unit 1693 /SCARLETT Y GOON/Supervisory Patent Examiner, Art Unit 1693
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Prosecution Timeline

Aug 30, 2023
Application Filed
Jan 05, 2026
Non-Final Rejection — §103 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
37%
Grant Probability
99%
With Interview (+71.7%)
3y 7m
Median Time to Grant
Low
PTA Risk
Based on 27 resolved cases by this examiner. Grant probability derived from career allow rate.

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