Prosecution Insights
Last updated: April 19, 2026
Application No. 18/628,570

USE OF LABELED INHIBITORS OF PROSTATE SPECIFIC MEMBRANE ANTIGEN (PSMA), AS AGENTS FOR THE TREATMENT OF PROSTATE CANCER

Non-Final OA §102§112
Filed
Apr 05, 2024
Examiner
SAMALA, JAGADISHWAR RAO
Art Unit
1618
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Novartis AG
OA Round
1 (Non-Final)
68%
Grant Probability
Favorable
1-2
OA Rounds
3y 1m
To Grant
99%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allow Rate
532 granted / 784 resolved
+7.9% vs TC avg
Strong +56% interview lift
Without
With
+56.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
24 currently pending
Career history
808
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
47.4%
+7.4% vs TC avg
§102
19.9%
-20.1% vs TC avg
§112
15.7%
-24.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 784 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 . Applicant’s election of Group I, claims 15-18 in the reply filed on 08/18/2015 is acknowledged. Because applicant did not distinctly and specifically point out the supposed errors in the restriction requirement, the election has been treated as an election without traverse (MPEP § 818.01(a)). Information Disclosure Statement The information disclosure statement (IDS) submitted on 05/10/2024, 07/05/2024 and 08/27/2024 was noted and the submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Drawings The drawings were received on 04/05/2024. These drawings are acknowledged. Claim Rejections - 35 USC § 112 Claim limitation “means for treating prostate cancer or a metastasis” invokes 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. However, the written description fails to disclose the corresponding structure, material, or acts for performing the entire claimed function and to clearly link the structure, material, or acts to the function. No association between the structure and the function can be found in the specification. Therefore, the claim is indefinite and is rejected under 35 U.S.C. 112(b) or pre-AIA 35 U.S.C. 112, second paragraph. Applicant may: (a) Amend the claim so that the claim limitation will no longer be interpreted as a limitation under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph; (b) Amend the written description of the specification such that it expressly recites what structure, material, or acts perform the entire claimed function, without introducing any new matter (35 U.S.C. 132(a)); or (c) Amend the written description of the specification such that it clearly links the structure, material, or acts disclosed therein to the function recited in the claim, without introducing any new matter (35 U.S.C. 132(a)). If applicant is of the opinion that the written description of the specification already implicitly or inherently discloses the corresponding structure, material, or acts and clearly links them to the function so that one of ordinary skill in the art would recognize what structure, material, or acts perform the claimed function, applicant should clarify the record by either: (a) Amending the written description of the specification such that it expressly recites the corresponding structure, material, or acts for performing the claimed function and clearly links or associates the structure, material, or acts to the claimed function, without introducing any new matter (35 U.S.C. 132(a)); or (b) Stating on the record what the corresponding structure, material, or acts, which are implicitly or inherently set forth in the written description of the specification, perform the claimed function. For more information, see 37 CFR 1.75(d) and MPEP §§ 608.01(o) and 2181. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 15-18 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claims are drawn to a composition comprising; (a) means for treating prostate cancer or a metastasis thereof and (b) a pharmaceutically acceptable carrier. However, the claims are devoid of any structural elements or compounds that correlates to the function which is to be achieved for treating prostate cancer or a metastasis thereof. The specification provides insufficient written description to support the genus of compounds that interact with PSMA or have high affinity for PSMA, encompassed by the claim, since there is no description of the structural relationship of these compounds provided in the specification and Applicant has not provided a description as to how the base molecule may be changed while remaining a derivative. The person of ordinary skill in the art could not predict whether a particular molecule possesses the function of treating prostate cancer or a metastasis other than the species disclosed in specification. In the instant case, a definition by function alone does not appear to sufficiently describe the claimed invention because it is only an indication of what the agent does, rather than what it is. Claim Rejections - 35 USC § 102 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) 15-18 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Pomper et al. (US 2012/0009121). Pomper discloses prostate specific membrane antigen (PSMA) binding compounds, chemical precursors of PSMA binding compounds and imaging methods of using the compounds (abstract and 0004). In embodiment include methods of treating a tumor comprising administering a therapeutically effective amount of a compound, where the compound includes a therapeutically effective radioisotope. The tumor cells may express PSMA, such as prostate tumor cells or metastasized prostate tumor cells (0189). In embodiment, includes method of treating a tumor comprising administering a therapeutically effective amount of a compound of the structure (claim 1) PNG media_image1.png 263 798 media_image1.png Greyscale . The compounds can be formulated into various compositions, for use in diagnostic, imaging or therapeutic treatment methods, which comprises a compound and pharmaceutically acceptable carrier. Some suitable pharmaceutical carriers include, e.g., water (including sterile and/or deionized water), suitable buffers (such as PBS), physiological saline, cell culture medium (such as DMEM), artificial cerebral spinal fluid, or the like (0193-0194). Thus, prior art composition comprising prostate specific membrane antigen (PSMA) binding compounds, chemical precursors of PSMA binding compounds could clearly anticipates the instantly claimed composition for treating prostate cancer or a metastasis thereof. Claim(s) 15-18 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Chandran et al. (US 2011/0200677). Chandran discloses a method for treating or preventing a disease or disorder in a subject, the method comprising the step of administering to the subject a nanoparticle composition, such that the administration of the nanoparticle composition is effective to treat or prevent said disease or disorder, wherein the nanoparticle composition comprises a) a prostate specific membrane antigen (PSMA) inhibitor; b) a linker, c) a biologically active agent; and d) a nanoparticle; or a nanoparticle composition of formula I: PNG media_image2.png 326 656 media_image2.png Greyscale (abstract), wherein the disease is prostate cancer or metastasis (claims 50-53). In certain preferred embodiments, provides a kit containing a composition, in combination with a pharmaceutically acceptable carrier. The composition and carrier may be provided in solution or in lyophilized form. When the composition and carrier of the kit are in lyophilized form, the kit may optionally contain a sterile and physiologically acceptable reconstitution medium such as water, saline, buffered saline, and the like (0202). Thus, prior art composition comprising prostate specific membrane antigen (PSMA) binding compounds, chemical precursors of PSMA binding compounds could clearly anticipates the instantly claimed composition for treating prostate cancer or a metastasis thereof. Claim(s) 15-18 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Babich et al. (US 2013/0034494). Babich discloses a pharmaceutical composition of a complex of a radionuclide and a Formula I compound or a Formula II compound and method of using the compounds for treating or diagnosis of a disease or a condition associated with PSMA activity (abstract) PNG media_image3.png 430 431 media_image3.png Greyscale . The pharmaceutical composition includes pharmaceutically acceptable carrier such as a liquid or solid filler, diluent, excipient, or solvent encapsulating material and buffering agents such as magnesium hydroxide and aluminum hydroxide; alginic acid; pyrogen-free water; isotonic saline; Ringer's solution; ethyl alcohol; pH buffered solutions; and other non-toxic compatible substances employed in pharmaceutical formulations. Thus, prior art composition comprising prostate specific membrane antigen (PSMA) binding compounds, chemical precursors of PSMA binding compounds could clearly anticipates the instantly claimed composition for treating prostate cancer or a metastasis thereof. Conclusion No claims are allowed at this time. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JAGADISHWAR RAO SAMALA whose telephone number is (571)272-9927. The examiner can normally be reached Monday-Friday 9am-6pm. 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, Hartley G Michael can be reached at 571 272 0616. 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. /J.R.S/Examiner, Art Unit 1618 /Michael G. Hartley/Supervisory Patent Examiner, Art Unit 1618
Read full office action

Prosecution Timeline

Apr 05, 2024
Application Filed
Aug 05, 2024
Response after Non-Final Action
Nov 20, 2025
Non-Final Rejection — §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
68%
Grant Probability
99%
With Interview (+56.5%)
3y 1m
Median Time to Grant
Low
PTA Risk
Based on 784 resolved cases by this examiner. Grant probability derived from career allow rate.

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