Prosecution Insights
Last updated: April 19, 2026
Application No. 17/998,463

COMPOUND, METHOD AND PHARMACEUTICAL COMPOSITION FOR REGULATING EXPRESSION OF ATAXIN 3

Final Rejection §102§103§112§DP
Filed
Nov 10, 2022
Examiner
POLIAKOVA-GEORGAN, EKATERINA
Art Unit
1637
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Mitsubishi Tanabe Pharma Corporation
OA Round
2 (Final)
65%
Grant Probability
Favorable
3-4
OA Rounds
2y 8m
To Grant
81%
With Interview

Examiner Intelligence

Grants 65% — above average
65%
Career Allow Rate
434 granted / 668 resolved
+5.0% vs TC avg
Strong +16% interview lift
Without
With
+16.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
55 currently pending
Career history
723
Total Applications
across all art units

Statute-Specific Performance

§101
5.4%
-34.6% vs TC avg
§103
28.6%
-11.4% vs TC avg
§102
22.8%
-17.2% vs TC avg
§112
24.2%
-15.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 668 resolved cases

Office Action

§102 §103 §112 §DP
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 . 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 14 and 15 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 14 and 15 recite the limitation "the pharmacological composition" in the first lines. There is insufficient antecedent basis for this limitation in the claims. For the purpose of examination it will be considered that claims 14 and 15 should recite “the method” instead of "the pharmacological composition", but appropriate correction is required. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-4, 6-9, 12-16, 19-22 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Lundberg et al (WO 2018/002886, January 2018, cited from IDS). Concerning claims 1-4, 6-9, 21-22 Lundberg et al disclose a single-stranded oligonucleotide of SEQ ID NO: 29793, 20 nucleotides long, first 18 of which are identical to instant SEQ ID NO: 239 (see paragraphs [00060, 000117-000118], sequence listing). Such oligonucleotide can be 2’-OMe phosphorothioate modified and can include 5-methylcytosine (see paragraphs [000156, 000164-000165, 000171]). Concerning claim 12 Lundberg et al disclose pharmaceutical compositions comprising the oligonucleotide of the invention and pharmaceutically acceptable carrier (see paragraph [000315]). Concerning claims 13-16, 19-20 Lundberg et al teach methods of treatment of spinocerebellar ataxia type 3 by administering oligonucleotides and compositions of the invention (see paragraph [0007]). 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. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim(s) 1-16, 19-22 is/are rejected under 35 U.S.C. 103 as being unpatentable over Rigo et al (WO 2017/053781, March 2017, cited from IDS) and in further view of Seth et al (WO 2011/156202, December 2011, cited from IDS). Rigo et al teach methods of treating, preventing and ameliorating neurodegenerative diseases such as spinocerebellar ataxia type 3 (see lines 10-15 on page 1) by administering modified oligonucleotides to an individual in need thereof (see bridging paragraph between pages 2 and 3). One of such oligonucleotides of SEQ ID NO: 4 (see Table 1) is single-stranded, 22 nucleotides long, and is fully complementary to instant SEQ ID NO: 1. Such oligonucleotide can comprise 2’-O-methoxyethyl group (see lines 2-3 on page 3), LNAs (see lines 8-11 on page 18), 5-methylcytosines (see lines 19-21 on page 4) and phosphorothioate linkages (see lines 10-11 on page 4). Rigo et al teach pharmaceutical compositions comprising oligonucleotides of the invention and pharmaceutically acceptable carrier (see lines 5-7 on page 7). Further Rigo et al teach designing antisense oligonucleotides targeting ataxin 3 by complementarity of such oligonucleotide to the target mRNA, synthesizing and testing the oligonucleotides (see lines 30-34 on page 31, Example 1). Rigo et al do not teach specific oligonucleotides of instant SEQ ID NOs: 239-263, or gapmer oligonucleotide modification as in instant claim 10, or the presence of specific modifications such as ALNA[mU]. Seth et al teach antisense oligonucleotides (see lines 14-17 on page 3) comprising bicyclic nucleosides such as LNAs (see lines 22-28 on page 47), some of such nucleosides are the same as instantly claimed ALNA[mU] (see structures of Formula IVa on pages 28-29). Further Seth et al teach that antisense oligonucleotides can have wing-gap-wing motifs with wings comprising modified sugars (see lines 12-25 on page 35). Seth et al teach that such modifications enhance antisense oligonucleotides properties (see Abstract). It would have been obvious to one of the ordinary skill in the art before the effective filing date of the claimed invention to identify new antisense oligonucleotides targeting ataxin 3 based on teachings on Rigo et al and further improve them by including modifications taught by Seth et al arriving at instant invention with a reasonable expectation of success. One of the ordinary skill in the art would be motivated to do so, because Rigo et al provides basic framework for designing and testing of antisense oligonucleotides for spinocerebellar ataxia type 3 treatment, motivating one of the art to create new, more effective, antisense oligonucleotides. Seth et al teach further modifications improving properties of antisense oligonucleotides, motivating one of the art to include such modifications into new antisense oligonucleotides designed based on teachings of Rigo et al. Claim(s) 1-9, 11-16, 19-22 is/are rejected under 35 U.S.C. 103 as being unpatentable over Rigo et al (WO 2017/053781, March 2017, cited from IDS) and in further view of Sawamoto et al (WO 2020/100826 from IDS, claiming priority to JP 2018-212424, cited from machine translation of JP 2018-212424). Teachings of Rigo et al are discussed above. Rigo et al do not teach specific oligonucleotides of instant SEQ ID NOs: 239-263, or the presence of specific modifications such as ALNA[mU]. Sawamoto et al teach further improvement of antisense oligonucleotides by inclusion of modified nucleotides (see paragraphs [0002-0004]) identical to instantly claimed ALNA[mS], ALNA[mU], ALNA[ipU], ALNA[Oxz], ALNA[Trz] (see paragraph [0147]). It would have been obvious to one of the ordinary skill in the art before the effective filing date of the claimed invention to identify new antisense oligonucleotides targeting ataxin 3 based on teachings on Rigo et al and further improve them by including modifications taught by Sawamoto et al arriving at instant invention with a reasonable expectation of success. One of the ordinary skill in the art would be motivated to do so, because Rigo et al provides basic framework for designing and testing of antisense oligonucleotides for spinocerebellar ataxia type 3 treatment, motivating one of the art to create new, more effective, antisense oligonucleotides. Sawamoto et al teach further modifications improving properties of antisense oligonucleotides, motivating one of the art to include such modifications into new antisense oligonucleotides designed based on teachings of Rigo et al. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-16, 19-22 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-36 of U.S. Patent No. 12,338,265 in view of Rigo et al and Seth et al. Claims from ‘265 recite modified nucleotides identical to instantly claimed ALNA[mS], ALNA[mU], ALNA[ipU], ALNA[Oxz], ALNA[Trz]. Teachings of Rigo et al and Seth et al are discussed above. It would have been obvious to one of the ordinary skill in the art before the effective filing date of the claimed invention to identify new antisense oligonucleotides targeting ataxin 3 based on teachings on Rigo et al and further improve them by including modifications taught by ‘265 and Seth et al arriving at instant invention with a reasonable expectation of success. One of the ordinary skill in the art would be motivated to do so, because Rigo et al provides basic framework for designing and testing of antisense oligonucleotides for spinocerebellar ataxia type 3 treatment, motivating one of the art to create new, more effective, antisense oligonucleotides. ‘265 and Seth et al teach further modifications improving properties of antisense oligonucleotides, motivating one of the art to include such modifications into new antisense oligonucleotides designed based on teachings of Rigo et al. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to EKATERINA POLIAKOVA whose telephone number is (571)270-5257. The examiner can normally be reached Mon-Fri 8-5. 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, Jennifer Dunston can be reached at (571)272-2916. 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. /EKATERINA POLIAKOVA-GEORGANTAS/Primary Examiner, Art Unit 1637
Read full office action

Prosecution Timeline

Nov 10, 2022
Application Filed
Jul 08, 2025
Non-Final Rejection — §102, §103, §112
Oct 09, 2025
Response Filed
Dec 18, 2025
Final Rejection — §102, §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600964
Compound for treatment of heart failure
2y 5m to grant Granted Apr 14, 2026
Patent 12595477
COMPLEMENT FACTOR B-MODULATING COMPOSITIONS AND METHODS OF USE THEREOF
2y 5m to grant Granted Apr 07, 2026
Patent 12584130
ANGIOTENSINOGEN (AGT) iRNA COMPOSITIONS AND METHODS OF USE THEREOF
2y 5m to grant Granted Mar 24, 2026
Patent 12576030
COMPOSITIONS FOR DELIVERY OF CODON-OPTIMIZED MRNA
2y 5m to grant Granted Mar 17, 2026
Patent 12570977
NOVEL MRNA COMPOSITION AND PRODUCTION METHOD FOR USE IN ANTI-VIRAL AND ANTI-CANCER VACCINES
2y 5m to grant Granted Mar 10, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

3-4
Expected OA Rounds
65%
Grant Probability
81%
With Interview (+16.2%)
2y 8m
Median Time to Grant
Moderate
PTA Risk
Based on 668 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month