Prosecution Insights
Last updated: July 17, 2026
Application No. 18/269,260

THERAPEUTIC TARGETS AND AGENTS FOR THE TREATMENT OF TRIOSEPHOSPHATE ISOMERASE (TPI) DEFICIENCY

Non-Final OA §103
Filed
Jun 22, 2023
Priority
Dec 31, 2020 — provisional 63/132,770 +2 more
Examiner
CHONG, YONG SOO
Art Unit
1623
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
OA Round
1 (Non-Final)
44%
Grant Probability
Moderate
1-2
OA Rounds
10m
Est. Remaining
85%
With Interview

Examiner Intelligence

Grants 44% of resolved cases
44%
Career Allowance Rate
383 granted / 878 resolved
-16.4% vs TC avg
Strong +41% interview lift
Without
With
+41.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 11m
Avg Prosecution
59 currently pending
Career history
944
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
71.3%
+31.3% vs TC avg
§102
17.3%
-22.7% vs TC avg
§112
5.0%
-35.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 878 resolved cases

Office Action

§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 . Status of the Application Applicant's election without traverse of Group II, drawn to a method of treating a subject with TPI deficiency by administering an agent that promotes stability of a mutant form of the human TPI protein, and the species, resveratrol and TPIE105D, in the reply filed 2/17/26 is acknowledged. Claims 1-2, 6, 9-11, 14-15, 17-18, 21-23, 25-26, 29, 31-33, 35-36, 38 are pending. Claims 6, 26, 36 have been amended. Claims 1-2, 6, 9-11, 21-23, 25-26, 29, 31-33, 35-36, 38 have been withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Claims 14-15, 17-18 are examined herein insofar as they read on the elected invention and species. 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 nonobviousness. Claims 14-15, 17-18 are rejected under 35 U.S.C. 103 as being unpatentable over Clay et al. (“Triosephosphate Isomerase Deficiency,” Am. J. Dis. Child, 1982, 136, pages 800-802) in view of Valentin et al. (“Triose phosphate isomerase deficiency in 3 French families: two novel null alleles, a frameshift mutation (TPI Alfortville) and an alteration of the initiation codone (TPI Paris),” Blood, 2000, vol. 96, issue 3, 1130-1135, of record) and Alway et al. (“Resveratrol Enhances Exercise-Induced Cellular and Functional Adaptations of Skeletal Muscle in Older Men and Women,” Journals of Gerontology, 2017, 72, 12, 1595-1606). The instant claims are directed to a method of treating a subject with TPI deficiency by administering an agent that promotes stability of a mutant form of the human TPI protein. Clay et al. teach that triosephosphate isomerase (TPI) deficiency is an autosomal recessive disease of infancy and childhood (page 800, left column, first paragraph). A marked deficiency of TPI is demonstrated in the skeletal muscle of patients (page 800, middle column, first full paragraph). In a case study of a female child, by 19 months, deterioration of motor performance was noted, for example being unable to sit without support. By 26 months, she did not verbalize, had poor head control, and had atrophy in both legs. By 9 years of age, she was unable to walk and muscle tone was decreased in the arms, while the lower extremities were spastic and hyperreflexic (pages 800-801). Valentin et al. teach that TPI deficiency is marked by progressive and severe neuromuscular dysfunction as a major clinical feature (page 1130, left column, second paragraph). Valentin et al. also teach that TPI E105D is the most frequently occurring TPI mutation, affecting subjects of diverse geographic and ethnic origins. The predominance of the E105D mutation has practical significance because questions concerning prenatal diagnosis are often paramount among the concerns of affected families (page 1133, left column, paragraph 4) However, Clay and Valentin et al. fail to disclose resveratrol. Alway et al. teach that resveratrol enhances resistance exercise more than placebo or exercise alone in muscle peak torque, average peak torque, and power on skeletal muscle (title and abstract). 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 claimed invention, to have administered resveratrol along with exercise, as taught by Alway et al., in a subject with TPI deficiency with E105D mutation, as taught by Clay and Valentin et al. A person of ordinary skill in the art would have been motivated to administer resveratrol along with exercise because this treatment regimen has beneficial effects on skeletal muscle in a subject in need thereof. Since TPI deficiency is marked by progressive and severe skeletal muscle dysfunction as a major clinical feature, administration of resveratrol along with exercise would obviously treat a subject with TPI deficiency. The Examiner notes that the limitation regarding “an agent that promotes stability of a mutant form of the human TPI protein” is obvious since all elemental steps of the method claim has been met by the cited prior art. Specifically, administration of resveratrol would obviously promote the stability of TPIE105D. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Yong S. Chong whose telephone number is (571)-272-8513. The examiner can normally be reached Monday to Friday: 9 AM to 5 PM EST. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Adam 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 an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at (866)-217-9197 (toll-free). /Yong S. Chong/Primary Examiner, Art Unit 1623
Read full office action

Prosecution Timeline

Jun 22, 2023
Application Filed
May 28, 2026
Non-Final Rejection mailed — §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

1-2
Expected OA Rounds
44%
Grant Probability
85%
With Interview (+41.4%)
3y 11m (~10m remaining)
Median Time to Grant
Low
PTA Risk
Based on 878 resolved cases by this examiner. Grant probability derived from career allowance rate.

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