Prosecution Insights
Last updated: October 02, 2026
Application No. 17/625,545

EXONS 45-55 SKIPPING USING MUTATION-TAILORED COCKTAILS OF ANTISENSE MORPHOLINOS IN THE DMD GENE

Final Rejection §103§112
Filed
Jan 07, 2022
Priority
Jul 09, 2019 — provisional 62/871,797 +1 more
Examiner
HUDSON, AMY ROSE
Art Unit
1636
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
The Governors of the University of Alberta
OA Round
2 (Final)
75%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
86%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allowance Rate
1092 granted / 1458 resolved
+14.9% vs TC avg
Moderate +12% lift
Without
With
+11.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
84 currently pending
Career history
1523
Total Applications
across all art units

Statute-Specific Performance

§101
3.5%
-36.5% vs TC avg
§103
33.9%
-6.1% vs TC avg
§102
13.8%
-26.2% vs TC avg
§112
34.7%
-5.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1458 resolved cases

Office Action

§103 §112
DETAILED ACTION 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 . Applicant’s election without traverse of group II in the reply filed on 10/2/25 is acknowledged. Claims 1-7, 14, and 15 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 10/2/25. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 16-20 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claims 16-20 recite “according to” the base claim. The metes and bounds of “according to” are not definite. It is suggested to recite “A conjugate comprising the antisense oligonucleotide of claim 8” for claim 16; and “The conjugate of claim 16” for claims 17-20. The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claim 17 is rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claim 17 requires for the carrier to be “operable to transport the antisense oligonucleotide into a target cell”. However, the specification does not adequately describe the structure required for the function. The specification does not adequately describe what structure is required for the carrier to be operable to transport the antisense oligonucleotide into a target cell. The specification discloses the carriers of instant claims 18-20, which are species that are not representative of the entire claimed genus. The MPEP states that for a generic claim, the genus can be adequately described if the disclosure presents a sufficient number of representative species that encompass the genus. See MPEP § 2163. If the genus has a substantial variance, the disclosure must describe a sufficient variety of species to reflect the variation within that genus. See MPEP § 2163. Although the MPEP does not define what constitute a sufficient number of representative species, the courts have indicated what do not constitute a representative number of species to adequately describe a broad genus. In Gostelli, the courts determined that the disclosure of two chemical compounds within a subgenus did not describe that subgenus. In re Gostelli, 872, F.2d at 1012, 10 USPQ2d at 1618. Additionally, in Carnegie Mellon University v. Hoffman-La Roche Inc., Nos. 07-1266, -1267 (Fed. Cir. Sept. 8, 2008), the Federal Circuit affirmed that a claim to a genus described in functional terms was not supported by the specification’s disclosure of species that were not representative of the entire genus. Furthermore, for a broad generic claim, the specification must provide adequate written description to identify the genus of the claim. In Regents of the University of California v. Eli Lilly & Co. the court stated: "A written description of an invention involving a chemical genus, like a description of a chemical species, 'requires a precise definition, such as by structure, formula, [or] chemical name,' of the claimed subject matter sufficient to distinguish it from other materials." Fiers, 984 F.2d at 1171, 25 USPQ2d 1601; In re Smythe, 480 F.2d 1376, 1383, 178 USPQ 279, 284985 (CCPA 1973) ("In other cases, particularly but not necessarily, chemical cases, where there is unpredictability in performance of certain species or subcombinations other than those specifically enumerated, one skilled in the art may be found not to have been placed in possession of a genus ...") Regents of the University of California v. Eli Lilly & Co., 43 USPQ2d 1398. The Guidelines for Examination of Patent Applications under the 35 USC § 112, first paragraph, “Written Description” Requirement”, published at Federal Register, Vol. 66, No. 4, pp. 1099-1111 outline the method of analysis of claims to determine whether adequate written description is present. The first step is to determine what the claim as a whole covers, i.e., discussion of the full scope of the claim. Second, the application should be fully reviewed to understand how applicant provides support for the claimed invention including each element and/or step, i.e., compare the scope of the claim with the scope of the description. Third, determine whether the applicant was in possession of the claimed invention as a whole at the time of filing. Thus, having analyzed the claims with regard to the Written Description guidelines, it is clear that the specification does not disclose a representative number of species for conjugates within the instant genus that have the required function. Thus, one skilled in the art would be led to conclude that Applicant was not in possession of the claimed invention at the time the application was filed. Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim(s) 8 and 16-20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sazani et al. (US 2025/0154507 A1). Sazani et al. teach an antisense oligonucleotide comprising the first 29 nucleotides of instant SEQ ID NO: 51 (30-mer) (see SEQ ID NO: 584 on page 149). Sazani et al. teaches the oligonucleotide as an antisense sequence targeted to splice site of preprocessed human dystrophin (page 149). The oligonucleotide of Sazani et al. is identical to the instant oligonucleotide and therefore necessarily meets the instant functional limitations (instant claim 8). Sazani et al. teaches a 25-mer comprising the first 21/30 nucleotides of instant SEQ ID NO: 52 (SEQ ID NO: 280); a 27-mer comprising the first 26/30 nucleotides of instant SEQ ID NO: 71 (SEQ ID NO: 818); and a 25-mer comprising nucleotides 5-29 of instant SEQ ID NO: 72 (30-mer) (SEQ ID NO: 286). Sazani et al. teaches: [0168] Oligomers for use in antisense applications generally range in length from about 10 to about 40 subunits, more preferably about 10 to 30 subunits, and typically 15-25 bases, including those having 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, or 40 bases It would have been obvious to extent SEQ ID NO: 584 of Sazani et al. by a single nucleotide and arrive at instant SEQ ID NO: 51 as a matter of design choice given that it is within the size range taught by Sazani et al. for the oligomers (instant claim 8 SEQ ID NO: 51). It would have been obvious to extent SEQ ID NO: 280 of Sazani et al. by nine nucleotides and arrive at instant SEQ ID NO: 52 as a matter of design choice given that it is within the size range taught by Sazani et al. for the oligomers (instant claim 8 SEQ ID NO: 52). It would have been obvious to extend SEQ ID NO: 818 of Sazani et al. by four nucleotides and arrive at instant SEQ ID NO: 71 as a matter of design choice given that it is within the size range taught by Sazani et al. for the oligomers (instant claim 8 SEQ ID NO: 71). It would have been obvious to extent SEQ ID NO: 286 of Sazani et al. by four nucleotides 5’ and one nucleotide 3’ and arrive at instant SEQ ID NO: 72 as a matter of design choice given that it is within the size range taught by Sazani et al. for the oligomers (instant claim 8 SEQ ID NO: 72). The oligomers of Sazani et al. are targeted to the same region as the instant sequences on the same target sequence, wherein Sazani et al. teaches appropriate lengths for the oligomers including the instant lengths. Extending the oligomers of Sazani et al. (5’, 3’, or combinations of each) within the lengths taught by Sazani et al. is considered to be a matter of design choice. Sazani et al. teaches: [0170] The antisense compounds of the invention may include an oligonucleotide moiety conjugated to an arginine-rich peptide transport moiety effective to enhance transport of the compound into cells (instant claims 16-20). Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Amy R Hudson whose telephone number is (571)272-0755. The examiner can normally be reached M-F 8:00am-6:00pm. 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, Neil Hammell can be reached at 571-270-5919. 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. /AMY ROSE HUDSON/Primary Examiner, Art Unit 1636
Read full office action

Prosecution Timeline

Jan 07, 2022
Application Filed
Dec 18, 2025
Non-Final Rejection mailed — §103, §112
Jun 16, 2026
Examiner Interview Summary
Jun 16, 2026
Applicant Interview (Telephonic)
Jun 18, 2026
Response Filed
Sep 01, 2026
Final Rejection mailed — §103, §112 (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

3-4
Expected OA Rounds
75%
Grant Probability
86%
With Interview (+11.5%)
2y 5m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1458 resolved cases by this examiner. Grant probability derived from career allowance rate.

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