Prosecution Insights
Last updated: July 17, 2026
Application No. 17/793,133

CO-CRYSTALS AND SALTS OF 8-CHLORO-N-(4-(TRIFLUOROMETHOXY)PHENYL)QUINOLIN-2-AMINE

Non-Final OA §102§103
Filed
Jul 15, 2022
Priority
Jan 31, 2020 — EU 20305090.1 +1 more
Examiner
VALLE, ERNESTO
Art Unit
1623
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Institut Curie
OA Round
2 (Non-Final)
61%
Grant Probability
Moderate
2-3
OA Rounds
0m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 61% of resolved cases
61%
Career Allowance Rate
14 granted / 23 resolved
+0.9% vs TC avg
Strong +36% interview lift
Without
With
+35.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
48 currently pending
Career history
77
Total Applications
across all art units

Statute-Specific Performance

§103
60.7%
+20.7% vs TC avg
§102
11.0%
-29.0% vs TC avg
§112
9.8%
-30.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 23 resolved cases

Office Action

§102 §103
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 is a 371 of PCT/EP2021/052165, filed 01/29/2021 which claims benefit of foreign priority of EP 20305090.1, filed 01/31/2020. Information Disclosure Statement The information disclosure statements (IDSs) submitted on dates 12/19/2022, 08/24/2023, 11/29/2023, 03/29/2024, 08/06/2024, 11/01/2024, 01/30/2025, 01/31/2025, 03/05/2025, 03/26/2025, 05/22/2025, 07/24/2025, 08/06/2025, 11/10/2025 and 12/05/2025 were filed in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statements are being considered by the examiner. Status of the Application Claims 1-13, 15, and 18-21 are pending. Claims 2, 5-6 and 11-13 been amended. New claims 19-21 have been added. Claims 14, and 16-17 have been cancelled by applicant. Claims 1-13, 15, and 18-21 are examined herein insofar as they read on the elected invention and species. Inventorship 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. Specification The lengthy specification (121 pages as filed 07/15/2022) has not been checked to the extent necessary to determine the presence of all possible minor and typographical errors. Applicant's cooperation is requested in correcting any errors of which applicant may become aware in the specification. 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim 4 is rejected under 35 U.S.C. 102(a)(1) and 102(a)(2) as being anticipated by Tazi (WO 2016/009065 Al - provided by Applicants as foreign reference 2 in IDS Dated 05/22/2025). Tazi discloses compound 24, 8-chloro-N-(4-(trifluoromethoxy) phenyl) quinolin-2-amine is disclosed as a derivative of formula (Ib) and discloses “Suitable physiologically acceptable acid addition salts of compounds of formula (I) include hydrobromide, tartrate, citrate, trifluoroacetate, ascorbate, hydrochloride, tartrate, triflate, maleate, mesylate, formate, acetate and fumarate. The compounds of formula (I) and or salts thereof may form solvates or hydrates and the invention includes all such solvates and hydrates. The terms "hydrates" and "solvates" simply mean that the compounds (I) according to the invention can be in the form of a hydrate or solvate, i.e. combined or associated with one or more water or solvent molecules. This is only a chemical characteristic of such compounds, which can be applied for all organic compounds of this type.” (pg. 20, lines 8-17). The teachings of Tazi anticipate the limitations of independent claim 4 wherein a pharmaceutically acceptable salt of 8-chloro-N-(4-(trifluoromethoxy)phenyl)quinolin-2-amine is cited. 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 of this title, 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. The factual inquiries set forth in Graham v. John Deere Co., 383 U.S. 1, 148 USPQ 459 (1966), that are applied for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or non-obviousness. Claims 4, and 19-21 rejected under 35 U.S.C. 103 as being unpatentable over Tazi (WO 2016/009065 Al - provided by applicants as foreign reference 2 in IDS Dated 05/22/2025). The instant claims are directed to a The instant claims are drawn to co-crystals of 8-chloro-N-(4-(trifluoromethoxy) phenyl) quinolin-2-amine in a pharmaceutical composition including a solvate and an excipient administered to a patient for the treatment of an inflammatory disease. Tazi '065 et al. teach a pharmaceutical composition of quinoline derivatives for the treatment of inflammatory diseases wherein the compound of 8-chloro-N-(4-(trifluoromethoxy) phenyl) quinolin-2-amine is disclosed as a derivative of formula (lb) in the form of compound 24 (pg. 48). Tazi also teaches "suitable physiologically acceptable acid addition salts of compounds of formula (I) include hydrobromide, tartrate, citrate, trifluoroacetate, ascorbate, hydrochloride, tartrate, triflate, maleate, mesylate, formate, acetate and fumarate. The compounds of formula (I) and or salts thereof may form solvates or hydrates and the invention includes all such solvates and hydrates" (p. 20, lines 8-17). Tazi '065 discloses that administration of the compounds of formula I showed improvement of inflammatory diseases such as Inflammatory Bowel Disease (IBD) and Rheumatoid Arthritis (RA) conditions (pg. 29, lines 15-20). Tazi '065 teaches excipients are selected according to dosage form and desired mode of administration and in any pharmaceutical form for enteral or parenteral administration which enable daily administration of 0.1-1,000 mg of active substance (p.69, lines 9-19). Therefore, it would have been prima facie obvious to a person of ordinary skill in the art, prior to the effective filing date of the instant application, to administer a compound of 8-chloro-N-(4-(trifluoromethoxy) phenyl) quinolin-2-amine solvate in a pharmaceutical composition to a patient for the treatment of an inflammatory disease with an excipient because Tazi '065 showed that it was an effective combination in treating inflammatory diseases and that adding an excipient enables the daily administration of 0.1-1.000 mg of an active substance to a subject.. A person having ordinary skill in the art would have been motivated to combine an 8-chloro-N-(4-(trifluoromethoxy) phenyl) quinolin-2-amine solvate and an excipient as disclosed by Tazi '065 because of the resulting dramatic improvement of inflammatory diseases of Inflammatory bowel disease (IBD) and Rheumatoid Arthritis (RA) derived from such treatment. A person of ordinary skill, following the teachings of Tazi '065 would have had a reasonable expectation of success in treating an inflammatory condition in a patient in need thereof. Allowable Subject Matter The following is an examiner's statement of reasons for allowance: Claims 1-3 and 5-13, 15 and 18 make a contribution over the prior art of record. The closest prior art found is Rabe (WO 2017/158201 Al) who discloses crystalline forms of compound (8-chloroquinolin- 2-yl)-(4-trifluoromethoxy-phenyl)-amine, also known as ABX-464 using (C1-C4) alcohol, non-polar, aprotic solvents, e.g. cyclohexane or benzene (page 8, lines 26-35). Rabe teaches x-ray powder diffractogram of 8-chloro-quinolin-2-yl)-(4-trifluoromethoxyphenyl)-amine at angles 7.3, 14.6, 18.3, 23.0 and 24.8, and in particular at angles 7.3, 14.6, 18.3, 23.0, 10 24.8, 28.3 and 29.5. with remarkable peaks at angles 18.6, 22.3, 24.1, 29.0 and 42.6 (page 8, lines 1-12). Rabe does not fairly teach a crystallization of ABX464 with the use of L-proline, gentisic or malonic acid, or 4, 4'Bipyridine to produce powder X-ray diffractogram peaks of degree 2-Theta angle at 12.0; 19.2; 21.2; and 24.3 (±0.2) or 16.0; 17.0; 17.8; 20.3; 22.5; and 22.7 (±0.2) or 8.5; 13.0; 15.7; 16.7; 20.9; 22.0; 23.1; 23.6 and 24.7 (±0.2). Conclusion Claims 1-3 and 5-13, 15 and 18 are allowed, claims 4, and 19-21 are rejected. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ERNESTO VALLE JR whose telephone number is (703)756-5356. The examiner can normally be reached 0730-1700 M-F EST, 1st 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, Adam C Milligan can be reached at 571-270-7674. 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. /E.V./Examiner, Art Unit 1623 /ADAM C MILLIGAN/Supervisory Patent Examiner, Art Unit 1623
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Prosecution Timeline

Jul 15, 2022
Application Filed
Oct 08, 2025
Non-Final Rejection (signed) — §102, §103
Nov 14, 2025
Non-Final Rejection mailed — §102, §103
Feb 12, 2026
Examiner Interview Summary
Feb 12, 2026
Applicant Interview (Telephonic)
Feb 17, 2026
Response Filed
Mar 12, 2026
Non-Final Rejection (signed) — §102, §103
Jun 10, 2026
Non-Final Rejection mailed — §102, §103 (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

2-3
Expected OA Rounds
61%
Grant Probability
97%
With Interview (+35.7%)
3y 4m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 23 resolved cases by this examiner. Grant probability derived from career allowance rate.

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