Prosecution Insights
Last updated: April 19, 2026
Application No. 18/026,799

COMBINATION THERAPIES

Non-Final OA §102
Filed
Mar 16, 2023
Examiner
XIAO, YAN
Art Unit
1642
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Mirati Therapeutics Inc.
OA Round
1 (Non-Final)
68%
Grant Probability
Favorable
1-2
OA Rounds
3y 0m
To Grant
99%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allow Rate
508 granted / 749 resolved
+7.8% vs TC avg
Strong +52% interview lift
Without
With
+51.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
29 currently pending
Career history
778
Total Applications
across all art units

Statute-Specific Performance

§101
4.4%
-35.6% vs TC avg
§103
29.5%
-10.5% vs TC avg
§102
19.4%
-20.6% vs TC avg
§112
23.4%
-16.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 749 resolved cases

Office Action

§102
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 . DETAILED ACTION 2. The election without traverse filed 12/12/2025 in response to the Office Action of 11/18/2025 is acknowledged and has been entered. Applicant has elected Group II, claim 2, drawn to a method of treating cancer in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of N-(3-Fluoro-4-(2-(5-((2-methoxyethylamino)methyl)pyridin-2-yl)thieno[3,2-b]pyridin-7-yloxy)phenyl)-N-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide; and a PD-(L)1/PD-1 checkpoint inhibitor. 3. Claims 1-7, 20-22, 24, 26, 28-31, 34-35 and 40-41 are pending in the application. Claims 1, 3-7, 20-22, 24, 26, 28-31, 34-35 and 40-41 have been withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to nonelected inventions, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 12/12/2025. Claim 2 is currently under prosecution. Priority 5. Applicant’s claim under 35 U.S.C. §§ 119(e) and/or 365(c) for benefit of the earlier filing date of applications, is acknowledged. 6. 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 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. Claim Rejections - 35 USC § 102 7. 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. 8. Claim 2 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by Doshi et al. (Journal of Clinical Oncology, February 26, 2019, Volume 37, Number 7_suppl, pages 1-2). Claim 2 is herein drawn to a method of treating cancer in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of N-(3-Fluoro-4-(2-(5-((2-methoxyethylamino)methyl)pyridin-2-yl)thieno[3,2-b]pyridin-7-yloxy)phenyl)-N-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide; and a PD-(L)1/PD-1 checkpoint inhibitor. N-(3-Fluoro-4-(2-(5-((2-methoxyethylamino)methyl)pyridin-2-yl)thieno[3,2-b]pyridin-7-yloxy)phenyl)-N-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide is also known as sitravatinib; see page 1 of specification. Doshi et al. teach Phase II study of sitravatinib in combination with nivolumab (a PD-1 checkpoint inhibitor) in patients with advanced or metastatic urothelial carcinoma (UC); see entire document, e.g., abstract, pages 1-2. Conclusion 9. No claim is allowed. 10. Any inquiry concerning this communication or earlier communications from the examiner should be directed to YAN XIAO whose telephone number is (571)270-3578. The examiner can normally be reached M-F 8-5 EST. 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, Samira Jean-Louis can be reached on 571-270-3503. 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. /YAN XIAO/Primary Examiner, Art Unit 1642
Read full office action

Prosecution Timeline

Mar 16, 2023
Application Filed
Jan 18, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

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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
68%
Grant Probability
99%
With Interview (+51.7%)
3y 0m
Median Time to Grant
Low
PTA Risk
Based on 749 resolved cases by this examiner. Grant probability derived from career allow rate.

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