Prosecution Insights
Last updated: July 17, 2026
Application No. 18/687,534

CANCER IMMUNOTHERAPY COMPOSITION CONTAINING INTERACTION INHIBITOR OF STING AND TRIM29 AS ACTIVE INGREDIENT

Non-Final OA §102§112
Filed
Feb 28, 2024
Priority
Aug 31, 2021 — RE 10-2021-0115253 +1 more
Examiner
HASTINGS, ALISON AZAR
Art Unit
Tech Center
Assignee
Spark Biopharma Inc.
OA Round
1 (Non-Final)
64%
Grant Probability
Moderate
1-2
OA Rounds
11m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allowance Rate
47 granted / 74 resolved
+3.5% vs TC avg
Strong +39% interview lift
Without
With
+38.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
44 currently pending
Career history
111
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
41.7%
+1.7% vs TC avg
§102
9.9%
-30.1% vs TC avg
§112
8.7%
-31.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 74 resolved cases

Office Action

§102 §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 . Election/Restrictions PNG media_image1.png 306 262 media_image1.png Greyscale Applicant’s election without traverse of Group I (claims 1-7) and “formula I ”, colorectal cancer and cGAMP in the reply filed on 06/10/2026 is acknowledged. Claims 1-7 read on the elected species and group 1. The elected group and species were found to be anticipated by the prior art and the search was halted. The examined claims are 1-7. Claims 8-22 are withdrawn. Priority The examiner notes that there is no certified English translation of the foreign application KR10-2021-0115253. If the applicant wants the application to be accorded benefit of the non-English language application, a certified translation is required. A date of was used for priority. Information Disclosure Statement The information disclosure statements (IDS) submitted on 05/07/2025, 02/28/2024, 12/31/2025 are being considered by the examiner. Specification The disclosure is objected to because of the following informalities: using <> to indicate headings is not normal English grammar . Appropriate correction is required. Drawings The drawings are objected to because the resolution of figure 19 is poor. Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. The figure or figure number of an amended drawing should not be labeled as “amended.” If a drawing figure is to be canceled, the appropriate figure must be removed from the replacement sheet, and where necessary, the remaining figures must be renumbered and appropriate changes made to the brief description of the several views of the drawings for consistency. Additional replacement sheets may be necessary to show the renumbering of the remaining figures. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. Claim Interpretation Claims 1-7 are composition claims and as such do not depend on the use of the composition. Thus no 112a enablement rejection was written for claim 7 for preventing cancers. Given that the various types of cancers have different causative agents, involve different cellular mechanisms, and consequently, differ in treatment protocol a method of preventing cancer is generally not consider enabled. The applicant is recommended to delete the word ‘prevent’ from the claims. 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 1-7 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. Regarding claim 3, the parentheses renders the claim indefinite because it is unclear whether the limitation(s) within the parentheses are part of the claimed invention. For example it is unclear if it must be K48 linkage-specific polyubiquitination or not. See MPEP § 2173.05(d). The scope of claim 1-7 is unclear because it is unclear if claim 1 is reciting a composition that is comprised of at least one component that is an active ingredient that inhibits the interaction between STING and TRIM29 or if claim 1 requires three components (1) active, (2) STING, (3) TRIM29 components. For the purposes of examination and based on the application as a whole the claim was interpreted with the understanding that claim 1 requires a single molecule that is an active ingredient that inhibits the interaction between STING and TRIM29. Claim Rejections - 35 USC § 102 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 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) 1-7 is/are rejected under 35 U.S.C. 102(a)(1) as being clearly anticipated by Kim (KIM, J., et al.; "Synthesis and library construction of privileged tetra-substituted A5-2-oxopiperazine as ß-turn structure mimetics" ACS combinatorial science, 2014, vol. 16, pp. 24-32, IDS). PNG media_image1.png 306 262 media_image1.png Greyscale The reference KIM teaches the following compound which is the same compound as the elected species formula I (see scheme 3, page 28). The reference KIM also anticipates these compounds in drug compositions (see introduction, pages 24-25). However, it does not matter what the prior art teaches for the use of the compound of formula I because the instant claims are composition claims not method claims. It is the exact same compound and as such has the same properties whether or not those properties where known. “Products of identical chemical composition cannot have mutually exclusive properties.” Therefore, if the prior art teaches the identical chemical structure, the properties applicant discloses and/or claims are necessarily present. In re Spada, 911 F. 2d 705, 709, 15 USPQ2d 1655, 1658 (Fed. Cir. 1990). This anticipates claims 1-7. Claim(s) 1-7 is/are rejected under 35 U.S.C. 102(a)(1) as being clearly anticipated by CHO (CHO, Wansang; "Mechanism-based discovery of bioactive small molecules for immune modulation and cancer treatment", February 2021, 145 pages, IDS). The reference CHO teaches the compound of formula I (figure 4.2, B page 102) AKA SB24011 that perturbs STING-TRIM29 interaction. PNG media_image2.png 182 219 media_image2.png Greyscale The reference CHO teaches the use of formula I composition against colorectal cancer with cGAMP (page 109). PNG media_image3.png 652 599 media_image3.png Greyscale This anticipates claims 1-2. The reference CHO teaches (page 105): PNG media_image4.png 73 619 media_image4.png Greyscale This anticipates claim 3. The reference CHO teaches (page 107-109): PNG media_image5.png 60 626 media_image5.png Greyscale PNG media_image6.png 61 494 media_image6.png Greyscale However, it does not matter what the prior art teaches for the use of the compound of formula I because the instant claims are composition claims not method claims. It is the exact same compound and as such has the same properties whether or not those properties where known. “Products of identical chemical composition cannot have mutually exclusive properties.” Therefore, if the prior art teaches the identical chemical structure, the properties applicant discloses and/or claims are necessarily present. In re Spada, 911 F. 2d 705, 709, 15 USPQ2d 1655, 1658 (Fed. Cir. 1990). This anticipates claims 1-7. Conclusion Claims 1-7 are rejected. Claims 8-22 are withdrawn. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALISON AZAR HASTINGS whose telephone number is (703)756-4584. The examiner can normally be reached Mon-Thurs 7:30am-5pm EST Friday 7:30-4pm EST (every other Friday off). 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, Kortney Klinkel can be reached at (571) 270-5239. 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. /A.A.H./ Examiner, Art Unit 1627 /Kortney L. Klinkel/ Supervisory Patent Examiner, Art Unit 1627
Read full office action

Prosecution Timeline

Feb 28, 2024
Application Filed
Jul 07, 2026
Non-Final Rejection mailed — §102, §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
64%
Grant Probability
99%
With Interview (+38.6%)
3y 3m (~11m remaining)
Median Time to Grant
Low
PTA Risk
Based on 74 resolved cases by this examiner. Grant probability derived from career allowance rate.

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