Prosecution Insights
Last updated: April 19, 2026
Application No. 19/328,820

Subcutaneous anti-HER2 Antibody Formulations and Uses Thereof

Non-Final OA §DP
Filed
Sep 15, 2025
Examiner
AEDER, SEAN E
Art Unit
1642
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Genentech Inc.
OA Round
1 (Non-Final)
57%
Grant Probability
Moderate
1-2
OA Rounds
3y 2m
To Grant
76%
With Interview

Examiner Intelligence

Grants 57% of resolved cases
57%
Career Allow Rate
793 granted / 1395 resolved
-3.2% vs TC avg
Strong +20% interview lift
Without
With
+19.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
81 currently pending
Career history
1476
Total Applications
across all art units

Statute-Specific Performance

§101
13.8%
-26.2% vs TC avg
§103
25.4%
-14.6% vs TC avg
§102
20.2%
-19.8% vs TC avg
§112
24.5%
-15.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1395 resolved cases

Office Action

§DP
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application is being examined under the pre-AIA first to invent provisions. Claims 1-30 are pending and currently under consideration. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-30 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-24 of U.S. Patent No. 9345661 B2 (9/15/25 IDS). Although the claims at issue are not identical, they are not patentably distinct from each other because the instant claims and the patent claims are both drawn to (i) highly concentrated pharmaceutical formulations comprising Trastuzumab and at least one hyaluronidase enzyme wherein the formulations comprise the same components in overlapping concentrations, (ii) injection devices comprising said formulations, (iii) methods of treating the same cancer population by administering said formulations, and (iv) kits comprising said formulations. Claims 1-30 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-17 of U.S. Patent No. 9968676 B2 (9/15/25 IDS). Although the claims at issue are not identical, they are not patentably distinct from each other because the instant claims and the patent claims are both drawn to (i) highly concentrated pharmaceutical formulations comprising Trastuzumab and at least one hyaluronidase enzyme wherein the formulations comprise the same components (other than the presence of Pertuzumab in the patent formulations) in overlapping concentrations, (ii) injection devices comprising said formulations, (iii) methods of treating the same cancer population by administering said formulations, and (iv) kits comprising said formulations. It is noted formulations of the patent claims recite formulations comprising 100-150 mg/ml of a combination of Trastuzumab and Pertuzumab, while the instant claims recite 120 +/-18 mg/ml Trastuzumab. Obvious formulations of the patent claims include formulations comprising any proportions of Trastuzumab and Pertuzumab encompassed by the patent claims, including formulations comprising 105 mg/ml Trastuzumab and 25 mg/ml Pertuzumab – which is a species encompassed by the instant claims. Claims 1-30 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-4 of U.S. Patent No. 12427193 B2. Although the claims at issue are not identical, they are not patentably distinct from each other. In particular regards to instant claims 13 and 27, and the patent claims, instant claims and the patent claims are both drawn to methods of administering highly concentrated pharmaceutical formulations comprising Trastuzumab and at least one hyaluronidase enzyme wherein the formulations comprise the same components in overlapping concentrations to treat HER2 positive cancers by administering said formulations. It is noted the patent claims specify the HER2 positive cancers are breast cancers, which render the patent claims species of instant claims. In particular regards to instant claims 11, 12, 14, 15, 26, and 28, the patent claims do not specifically recite the administered formulations are in vials of kits comprising instructions or are in injection devices for “subcutaneous” administration. However, it would be obvious to provide the formation in vials and injection devices for subcutaneous administration because the patent specification discloses the recited formulations are to be administered subcutaneously using injection devices (lines 63-67 of column 3 and lines 39-47 of column 4, in particular) and vials provide obvious means for storing/containing the formulations prior to injection. Further, generating a “kit” for a given method with instructions provides two services: 1) a variety of different reagents have been assembled and pre-mixed specifically for a defined set of experiments. Thus, one need not purchase gram quantities of numerous different reagents when each of which may be needed in only microgram amounts, when beginning a series of experiments. When one considers all of the unused chemicals that typically accumulate in weighing rooms, desiccators, and freezers, one quickly realizes that it is actually far more expensive for a small number of users to prepare most buffer solutions from the basic reagents. In actuality, a kit format saves money and resources for everyone by dramatically reducing waste. 2) The other service provided in a kit is quality control. Therefore, it would have been prima facie obvious to one having ordinary skill in the art at the time the invention was made to combine the reagents (including the recited formation in vials and injection devices for subcutaneous administration) of the patent method into a kit format since a kit provides a quality control, saves money, and saves resources. Further, formulations of instant claims 1-8, 10, 16-25, 29, and 30 are obvious in view of the patent method claims because the formulations of the instant claims are required by the methods of the patent claims. Regarding instant claim 9 that specifies the hyaluronidase enzyme is rHuPH20, the patent discloses claimed embodiments of recited formulations include those wherein the recited hyaluronidase enzyme is rHuPH20 (lines 48-60 of column 6, in particular). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SEAN E AEDER whose telephone number is (571)272-8787. The examiner can normally be reached M-F 9am-6pm ET. 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 at (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. /SEAN E AEDER/Primary Examiner, Art Unit 1642
Read full office action

Prosecution Timeline

Sep 15, 2025
Application Filed
Nov 24, 2025
Non-Final Rejection — §DP (current)

Precedent Cases

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Patent 12559801
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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
57%
Grant Probability
76%
With Interview (+19.5%)
3y 2m
Median Time to Grant
Low
PTA Risk
Based on 1395 resolved cases by this examiner. Grant probability derived from career allow rate.

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