Prosecution Insights
Last updated: July 17, 2026
Application No. 18/783,250

MACROCYCLIC AZOLOPYRIDINE DERIVATIVES AS EED AND PRC2 MODULATORS

Non-Final OA §112
Filed
Jul 24, 2024
Priority
Mar 15, 2019 — provisional 62/819,064 +4 more
Examiner
SEAMAN, D MARGARET M
Art Unit
Tech Center
Assignee
Fulcrum Therapeutics Inc.
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
2m
Est. Remaining
85%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allowance Rate
1068 granted / 1394 resolved
+16.6% vs TC avg
Moderate +8% lift
Without
With
+8.0%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 2m
Avg Prosecution
39 currently pending
Career history
1418
Total Applications
across all art units

Statute-Specific Performance

§101
1.6%
-38.4% vs TC avg
§103
20.2%
-19.8% vs TC avg
§102
17.1%
-22.9% vs TC avg
§112
30.7%
-9.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1394 resolved cases

Office Action

§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 . Priority This application was filed 07/24/2024 and is a CON of 18/085134 (12/20/2022, US Pat 12109198) which is a CON of 17/178637 (02/18/2021, US Pat 11590111) which is a CON of 16/858404 (04/24/2020, US Pat 10973805) which is a CON of PCT/US2020/022724 (0/13/2019) and has Pro 62/819064 (03/15/2019). Claims 1-13 have been canceled. Claims 14-24 are before the examiner. Claim Rejections - 35 USC § 112 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. Claims 14-24 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the enablement requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to enable one skilled in the art to which it pertains, or with which it is most nearly connected, to make and/or use the invention. There are many factors to be considered when determining whether there is sufficient evidence to support a determination that a disclosure does not satisfy the enablement requirement and whether any necessary experimentation is “undue”. These factors include 1) the breadth of the claims, 2) the nature of the invention, 3) the state of the prior art, 4) the level of one of ordinary skill, 5) the level of predictability in the art, 6) the amount of direction provided by the inventor, 7) the existence of working examples, and 8) the quantity of experimentation needed to make or use the invention based on the content of the disclosure. In re Wands, 858 F.2d 731, 737, 8 USPQ2d 1400, 1404 (Fed. Cir. 1988). The nature of the invention: The nature of the invention is the method of treating cancer that is lined to EED bond, H3K27me3 immunocytochemistry or histone methyltransferase with the compounds of claim 14. The state of the prior art: The state of the prior art is that it involves screening in vitro and in vivo to determine which compounds exhibit the desired pharmacological activities (i.e. what compounds can treat which specific disease). There is no absolute predictability even in view of the seemingly high level of skill in the art. The existence of these obstacles establishes that the contemporary knowledge in the art would prevent one of ordinary skill in the art from accepting any therapeutic regimen on its face. Bao teaches that EED has potential as a cancer treatment. Zhang teaches that SEtDB1 is a feasible target for human cancer treatment. The predictability in the art: It is noted that the pharmaceutical art is unpredictable, requiring each embodiment to be individually assessed for physiological activity. In re Fisher, 427 F. 2d 833, 166 USPQ 18 (CCPA 1970) indicates that the more unpredictable an area is, the more specific enablement is necessary in order to satisfy the statute. In the instant case, the instantly claimed invention is highly unpredictable since one skilled in the art would recognize that in regards to the therapeutic effects of cancer, whether or not the modulation of EED and SETDB1 would make a difference in the cancer. Hence, in the absence of a showing of a nexus between any and all known diseases and the modulation of EED or SETDB1, one of ordinary skill in the art is unable to fully predict possible results from the administration of the compound of claim 14 due to the unpredictability of the role of these receptors. The presence or absence of working examples: The compounds have been shown to have in vitro activity in EDD binding, H2K27me3 and histone methyltransferase. However, there are no working examples of the instant compounds treating cancer. The amount of direction or guidance present: The guidance present in the specification is that the instant compounds can treat cancer because they are effective for binding EEED, H3K27me3 and histone methyltransferase. However, the specification and the prior art do not provide a nexus between the activity of the instant compounds and the treatment of cancer The breadth of the claims: The claims are drawn to the treatment of cancer mediated by the EED with the compound of claim 14. The quantity of experimentation needed: The quantity of experimentation needed is undue. One skilled in the art would need to determine what cancers would be benefited by the mediation of EED receptors and then would further need to determine which of the claimed compounds would provide treatment of the disease. The level of the skill in the art: The level of skill in the art is high. However, due to the unpredictability in the pharmaceutical art, it is noted that each embodiment of the invention is required to be individually assessed for physiological activity by in vitro and in vivo screening to determine which compounds exhibit the desired pharmacological activity and which diseases would benefit from this activity. Thus, the specification fails to provide sufficient support of the broad use of the compounds of claim 1 for the treatment of any disease. As a result, necessitating one of ordinary skill to perform an exhaustive search for which diseases can be treated by which compound of claim 1 in order to practice the claimed invention. Genentech Inc. v. Novo Nordisk A/S (CA FC) 42 USPQ2d 1001, states that “a patent is not a hunting license. It is not a reward for search, but compensation for its successful conclusion” and “[p]atent protection is granted in return for an enabling disclosure of an invention, not for vague intimations of general ideas that may or may not be workable”. Therefore, in view of the Wands factors and In re Fisher (CCPA 1970) discussed above, to practice the claimed invention herein, one of ordinary skill in the art would have to engage in undue experimentation to test which diseases can be treated by the compounds of the instant claims, with no assurance of success. Any inquiry concerning this communication or earlier communications from the examiner should be directed to D MARGARET M SEAMAN whose telephone number is (571)272-0694. The examiner can normally be reached M-F 8am-4pm Eastern. 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, Andrew Kosar can be reached at 571-272-0913. 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. /D MARGARET M SEAMAN/Primary Examiner, Art Unit 1625
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Prosecution Timeline

Jul 24, 2024
Application Filed
Jun 04, 2026
Non-Final Rejection mailed — §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

1-2
Expected OA Rounds
77%
Grant Probability
85%
With Interview (+8.0%)
2y 2m (~2m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1394 resolved cases by this examiner. Grant probability derived from career allowance rate.

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