Prosecution Insights
Last updated: August 16, 2026
Application No. 18/794,848

MODULATORS OF CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCE REGULATOR

Non-Final OA §112
Filed
Aug 05, 2024
Priority
Aug 07, 2020 — provisional 63/063,194 +1 more
Examiner
DAVIS, BRIAN J
Art Unit
1614
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Vertex Pharmaceuticals Incorporated
OA Round
1 (Non-Final)
85%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
81%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allowance Rate
1341 granted / 1581 resolved
+24.8% vs TC avg
Minimal -4% lift
Without
With
+-4.1%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 9m
Avg Prosecution
46 currently pending
Career history
1618
Total Applications
across all art units

Statute-Specific Performance

§101
5.2%
-34.8% vs TC avg
§103
16.5%
-23.5% vs TC avg
§102
19.5%
-20.5% vs TC avg
§112
44.7%
+4.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1581 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 . Information Disclosure Statement The lined-through refence is simply an entire standard reference text. (Note 37 CFR 1.98(b)(5): “Each publication listed in an information disclosure statement must be identified by publisher, author (if any), title, relevant pages of the publication [emphasis added], date, and place of publication.”) 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. Claim 63 is 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. In the definition of variable RY, it is unclear how this moiety may be -NRY1-. RY is a terminal moiety yet -NRY1- is coordinatively unsaturated (i.e. is not a terminal moiety). Clarification is in order. Claims 66 and 68 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. There is insufficient antecedent basis for the last diagramed structure in the claims. That is, there appears to be no antecedent basis for the -C(CH3)3 substituent on the phenyl ring in this structure. (As taught by claim 63, the claim from which claims 66 and 68 immediately depend, Q may be selected from C1-C6 alkyl substituted with C6-C10 aryl which may be substituted with halogen and -OCF3.) Claim 74 is 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. There is insufficient antecedent basis for the limitation “…a pharmaceutically acceptable salt…” in the claim. Claims 64, 65, 67, 69-73 and 75-82 are also 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. The claims all depend, or ultimately depend, from an indefinite claim yet do not relieve the indefiniteness. Dependent claims 64, 65, 67, 69-73 and 75-82 are also, therefore, indefinite. Allowable Subject Matter The subject matter of claims 63-82 would be allowable once the 112 rejections outlined above have been overcome. The following is a statement of reasons for the indication of allowable subject matter: The key to the instant invention is the Markush group of compounds of S4-4 and S4-3. As in the parent application, the closest prior art appears to be WO 2013/038386 A1 which teaches heterocyclic compounds for the treatment of inter alia cystic fibrosis (abstract; page 1, line 21ff). The prior art compounds are structurally dissimilar to those of the instant invention. That being the case, the prior art does not teach, show, suggest or make obvious the instant method of converting compound S4-3 to S4-4. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRIAN J DAVIS whose telephone number is (571)272-0638. The examiner can normally be reached M-F 8:30-5:00 PM EDT. 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, Ali Soroush, can be reached at 571-272-9925. 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. /BRIAN J DAVIS/Primary Examiner, Art Unit 1614 7/24/2026
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Prosecution Timeline

Aug 05, 2024
Application Filed
Jul 28, 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
85%
Grant Probability
81%
With Interview (-4.1%)
1y 9m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1581 resolved cases by this examiner. Grant probability derived from career allowance rate.

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