Prosecution Insights
Last updated: April 19, 2026
Application No. 17/639,578

PHARMACEUTICAL COMPOSITION COMPRISING MITOTANE ADMINISTERED ORALLY FOR TREATMENT OF ADRENOCORTICAL CARCINOMA AND CUSHING'S SYNDROME

Non-Final OA §112
Filed
Aug 11, 2023
Examiner
HENLEY III, RAYMOND J
Art Unit
1629
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Mohamed Skiba
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
2y 0m
To Grant
86%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
1041 granted / 1248 resolved
+23.4% vs TC avg
Minimal +2% lift
Without
With
+2.1%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 0m
Avg Prosecution
31 currently pending
Career history
1279
Total Applications
across all art units

Statute-Specific Performance

§101
4.0%
-36.0% vs TC avg
§103
19.4%
-20.6% vs TC avg
§102
10.0%
-30.0% vs TC avg
§112
30.1%
-9.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1248 resolved cases

Office Action

§112
CLAIMS 1-20 ARE PRESENTED FOR EXAMINATION 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 . Applicant’s Preliminary Amendment filed December 07, 2022 and Information Disclosure Statement filed March 01, 2022 have been received and entered into the application. Accordingly, the application papers have been amended as directed. Also, as reflected by the attached, completed copies of form PTO/SB/08, the cited references have been considered. Allowable Subject Matter Indicated Claims 1-3, 5, 6, 8 and 11-18 are deemed allowable. Claim 1 is representative of the claimed subject matter and reads: PNG media_image1.png 131 817 media_image1.png Greyscale The prior art closes to the claimed subject matter is: Alfonsi R. et al., "Characterization of mitotane (o,p '-DDD) - cyclodextrin inclusion complexes: Phase-solubility method and NMR," Annales Pharmaceutiques Francaises, Vol. 71, Issue 3, pp. 186-192 (May, 2013) (Year: 2013), (hereinafter “Alfonsi”, cited and copy provided by the Examiner). Alfonsi teaches a mitotane and cyclodextrin complex which was studied using both phase-solubility methods and NMR experiments because unlike mitotane, the complex is very soluble in water which lends itself to an improved bioavailability, (see the abstract). The complexes were diluted with water, (pg. 3, line 3). Other compositions taught include a simple freeze-dried mitotane-cyclodextrin complex, (pg. 3, under the heading “Lyophilization of the complexes”. Nowhere, however, does the reference teach an emulsion, i.e., a mixture of two or more liquids that are normally immiscible having an oily phase enriched with mitotane and cyclodextrin which emulsion is a dry emulsion. For the above reasons, as well as that the claims are enabled and definite, the Examiner finds the above claims to be allowable. Claim Rejection - 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 4, 7, 9, 10, 19 and 20 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. In particular, in claim 4, “the cyclodextrin derivatives” finds no antecedent basis. In claim 7, it is unclear whether the parenthetical phrase represents a controlling limitation in the expression “granules (pellets),”. In claim 9, the term “use” is nebulous and fails to particularly point out any steps to be taken in order to accomplish the claimed objective of treatment. Also, in claim 10, “the aqueous phase” has no antecedent basis. Also, the claim reads “to obtain an O/W primary emulsion then a dry emulsion based on mitotane, drying…” which makes it unclear how a dry emulsion is formed before the recitation of a step of drying. Finally, “the grains” finds no antecedent basis. Claims 19-20 depend from claim 10 and thus are properly rejected as being indefinite. Any inquiry concerning this communication or earlier communications from the examiner should be directed to RAYMOND J HENLEY III whose telephone number is (571)272-0575. The examiner can normally be reached M-F 6-2:30pm 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, Jeffrey S Lundgren can be reached at 571-272-5541. 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. /RAYMOND J HENLEY III/Primary Examiner, Art Unit 1629 November 27, 2025
Read full office action

Prosecution Timeline

Aug 11, 2023
Application Filed
Jan 11, 2023
Response after Non-Final Action
Nov 27, 2025
Non-Final Rejection — §112 (current)

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Prosecution Projections

1-2
Expected OA Rounds
83%
Grant Probability
86%
With Interview (+2.1%)
2y 0m
Median Time to Grant
Low
PTA Risk
Based on 1248 resolved cases by this examiner. Grant probability derived from career allow rate.

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