Prosecution Insights
Last updated: April 19, 2026
Application No. 18/672,743

COMPOSITIONS AND METHODS FOR THE TREATMENT OF AMYOTROPHIC LATERAL SCLEROSIS, PARKINSON’S DISEASE, PARKINSON’S DISEASE WITH DEMENTIA, DEMENTIA WITH LEWY BODIES, AND MULTIPLE SYSTEM ATROPHY

Non-Final OA §DP
Filed
May 23, 2024
Examiner
GEMBEH, SHIRLEY V
Art Unit
1615
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Stealth BioTherapeutics Inc.
OA Round
1 (Non-Final)
63%
Grant Probability
Moderate
1-2
OA Rounds
2y 8m
To Grant
97%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allow Rate
1014 granted / 1606 resolved
+3.1% vs TC avg
Strong +34% interview lift
Without
With
+33.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
42 currently pending
Career history
1648
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
39.0%
-1.0% vs TC avg
§102
18.2%
-21.8% vs TC avg
§112
15.1%
-24.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1606 resolved cases

Office Action

§DP
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 . Status of Claims Claims 106-125 are pending and under examination in this office action. Information Disclosure Statement Receipt is acknowledged of the Information Disclosure Statement filed 10/17/24; 10/2/24; 3/11/25; 7/8/25; 10/13/25; 11/3/25; 1/7/26 and 2/18/26. The Examiner has considered the references cited therein to the extent that each is a proper citation. Please see the attached USPTO Form 1449. 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 106- 125 are rejected under the judicially created doctrine of obviousness-type double patenting as being unpatentable over claims 1-18 of U.S. Patent No. 12,016,843 Although the conflicting claims are not identical, they are not patentably distinct from each other. The reasons are as follows: · Both sets of claims refer to treating treating ALS comprising administering . R)-2-amino-N-((S)- 1-(((S)-5 -amino-i1-(3- benzyl- 1,2,4-oxadiazol-5 -yl)pentyl)amino)-3 -(4-hydroxy-2, 6-dimethylphenyl)- 1- oxopropan-2-yl)-5 -guani dinopentanamide and edaravone or riluzole (see instant claims 106, 116 and patented claims 1, 13) Both applications recite using the same compositions and/or derivatives thereof. In view of the foregoing, the instant claims and the current application claims are obvious variations. Claims 106- 125 are rejected under the judicially created doctrine of obviousness-type double patenting as being unpatentable over claims 1-17 of U.S. Patent No. 11273149 in view of Zheng et al. (WO 2019/118878) and Benata et al. (US 2021/0172963). Although the conflicting claims are not identical, they are not patentably distinct from each other. The reasons are as follows: · Both sets of claims refer to treating treating ALS administering R)-2-amino-N-((S)- 1-(((S)-5 -amino-i1-(3- benzyl- 1,2,4-oxadiazol-5 -yl)pentyl)amino)-3 -(4-hydroxy-2, 6-dimethylphenyl)- 1- oxopropan-2-yl)-5 -guani dinopentanamide However the patented claims fail to teach administration includes edaravone or riluzole Nonetheless when the patented specification is used as a dictionary, it teaches that co administration of edaravone or riluzole (see col. 2, lines 79+). Therefore it would have been obvious to one of ordinary skill in the art to treat ALS by co administration of edaravone or riluzole to the patient in need thereof with a reasonable expectation of success. · Both applications recite using the same compositions and/or derivatives thereof. No claims are allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SHIRLEY V GEMBEH whose telephone number is (571)272-8504. The examiner can normally be reached M-F 9am-6pm. 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, Robert A. Wax can be reached on 571-272-0623. 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. /SHIRLEY V GEMBEH/Primary Examiner, Art Unit 1615 3/4/26
Read full office action

Prosecution Timeline

May 23, 2024
Application Filed
Mar 09, 2026
Non-Final Rejection — §DP (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
63%
Grant Probability
97%
With Interview (+33.6%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 1606 resolved cases by this examiner. Grant probability derived from career allow rate.

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