Endometrioid Carcinoma

Subgroup experienced efficacy and safety consistent with overall study population Advanced malignant PEComa tumors of gynecologic origin accounted for more than half of the evaluable patients enrolled in AMPECT Additional data presented highlight nab-sirolimus as potential approach for mTOR-driven gynecologic cancers LOS ANGELES, March 17, 2024 /PRNewswire/ -- Aadi Bioscience, Inc. (NASDAQ: AADI), a commercial-stage precision oncology company focused on developing and commercializing therapies for cancers with alterations in the mTOR pathway, today announced patients in the AMPECT trial whose malignant perivascular epithelioid cell tumor (PEComa) had gynecologic origins experienced efficacy and safety consistent with the overall study population. The AMPECT trial formed the basis for the FDA approval of the company's nab-sirolimus, FYARRO®, for advanced malignant PEComa regardless of mutational status. This new subgroup analysis will be presented during an oral plenary at the Society of Gynecologic Oncology (SGO) Annual Meeting in San Diego, CA on March 17, 2024. "In AMPECT, advanced malignant PEComa tumors originating from uterine, ovarian, pelvic or retroperitoneal sites had a response to nab-sirolimus consistent with that of the full study population, including overall response rate, onset and duration of tumor response," said Thomas J. Herzog, MD, Deputy Director, University of Cincinnati Cancer Center. "Malignant PEComa tumors of gynecologic or retroperitoneal origin accounted for more than half of the evaluable patients enrolled, offering important insights into this population and reinforcing the need for awareness and understanding of this rare but aggressive cancer among the gynecologic oncologist community." Oral plenary presentation details and study highlights include: Title: "Response to Treatment with nab-Sirolimus in Patients with Perivascular Epithelioid Cell Sarcoma (PEComa) of Gynecologic or Retroperitoneal Origin: Subgroup Analysis from AMPECT" Presenting Author: Thomas J. Herzog, MD Session Title: Focused Plenary V: Rare Care: Updates in Uncommon Cancers Location: Ballroom 20CD Date/Time: Sunday, March 17, 2024 – 1:45 PM to 2:45 PM Of the 31 patients enrolled in AMPECT, 16 had malignant PEComas originating from uterine, ovarian, pelvic or retroperitoneal sites Overall response rate to nab-sirolimus for the subgroup was 37.5% (6/16), consistent with the overall AMPECT population Subgroup responses were rapid and durable, with 1.4 months median time to response and 36.2 months median duration of response Safety profile of the subgroup was manageable and consistent with the overall AMPECT population Additional data presented at SGO further highlight nab-sirolimus as a potential approach for mTOR-driven gynecologic cancers. These presentations include a real-world study characterizing TSC1 and TSC2 inactivating alterations in patients with advanced gynecologic cancers; trial-in-progress updates for the ongoing, tumor agnostic, registration-intended PRECISION1 trial; and a Phase 2 study of nab-sirolimus in combination with letrozole for advanced or recurrent endometrioid-type endometrial cancer (EEC). "Overactivation of the mTOR pathway has been implicated in gynecological cancers," said Loretta Itri, MD, Chief Medical Officer at Aadi. "nab-Sirolimus is a nanoparticle albumin-bound (nab) mTOR inhibitor under investigation in TSC1- and TSC2-mutated tumors as well as other mTOR-driven tumors. We are diligently continuing to explore the potential of nab-sirolimus for this patient community in need of new therapies." Poster presentation details and highlights include: Title: "Analysis of inactivating TSC1 and TSC2 alterations in a real-world patient population with advanced gynecological cancers in the Foundation Medicine genomic database" Presenting Author: Lauren E. Dockery, MD, MS Session Title: Poster Session 1 Location: Exhibit Hall (Hall GH) Poster Number: 1176 Date/Time: Sunday, March 17, 2024 – 1:15 PM to 2:45 PM Registration-directed PRECISION1 study is enrolling patients with solid tumors harboring TSC1 and/or TSC2 inactivating alterations In a large real-world database of patients with advanced cancer, 1,342 (2.4%) of the 54,911 patients with gynecological cancers harbored at least one inactivating alteration in TSC1 or TSC2 TSC1 and/or TSC2 inactivating alterations were present in 3.6% of endometrial cancers, 2.0% of ovarian cancers and 1.5% of cervical cancers Title: "nab-Sirolimus Plus Letrozole in Advanced or Recurrent Endometrioid Endometrial Cancer: A Phase 2, Open-Label, Single-Arm, Prospective, Multi-Center Study" Presenting Author: Lauren E. Dockery, MD, MS Session Title: Poster Session 2 Location: Exhibit Hall (Hall GH) Poster Number: 2127 Date/Time: Monday, March 18, 2024 – 11:45 AM to 12:45 PM This ongoing phase 2, open-label, single-arm, multicenter study is evaluating nab-sirolimus in combination with letrozole for the treatment of patients with advanced or recurrent EEC Prior clinical studies with mTOR inhibitors and endocrine therapy have yielded promising results in EEC Title: "nab-Sirolimus for Malignant Solid Tumors Harboring Pathogenic Inactivating Alterations in TSC1 and TSC2 in a Phase 2, Multicenter, Open-Label Tumor-Agnostic Trial: PRECISION 1" Presenting Author: Debra L. Richardson, MD Session Title: Poster Session 2 Location: Exhibit Hall (Hall GH) Poster Number: 2126 Date/Time: Monday, March 18, 2024 – 11:45 AM to 12:45 PM TSC1 and/or TSC2 inactivating alterations have been observed in patients with gynecological cancers with a frequency of up to 5.0% in endometrial cancer, 2.2% in ovarian cancer and 1.5% in cervical cancer About Aadi Bioscience Aadi is a commercial-stage precision oncology company focused on the development and commercialization of therapies for cancers with alterations in the mTOR pathway, a key regulator of cell growth and cancer progression. To unlock the full potential of mTOR inhibition, Aadi uniquely combines nanoparticle albumin-bound (nab) technology with the potent mTOR inhibitor, sirolimus. Aadi received FDA approval and commercializes FYARRO® for the treatment of adult patients with locally advanced unresectable or metastatic malignant perivascular epithelioid cell tumor (PEComa). Aadi is exploring nab-sirolimus in PRECISION1, a Phase 2 tumor-agnostic registration-intended trial in mTOR inhibitor-naïve malignant solid tumors harboring TSC1 or TSC2 inactivating alterations. Aadi is also exploring nab-sirolimus in two single-indication Phase 2 trials for difficult-to-treat mTOR-driven cancers: neuroendocrine tumors (NETs), and advanced or recurrent endometrioid-type endometrial cancer (EEC) in combination with letrozole. More information on the Company's development pipeline is available on the Aadi website at and connect with us on Twitter and LinkedIn. Forward-Looking Statements This press release contains certain forward-looking statements regarding the business of Aadi Bioscience that are not a description of historical facts within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements are based on the Company's current beliefs and expectations and may include, but are not limited to, statements relating to: expectations regarding the beneficial characteristics, safety, efficacy and therapeutic effects of FYARRO; expectations regarding the clinical responses and safety profile, regulatory approval and commercialization, and the sufficiency of the Company's existing capital resources and the expected timeframe to fund the Company's future operating expenses and capital expenditure requirements. Actual results could differ materially from those anticipated in such forward-looking statements as a result of these risks and uncertainties, which include, without limitation, those associated with the uncertainties associated with the clinical development and regulatory approval of FYARRO in additional indications; the risk that interim or subgroup analysis results of clinical trials may not be reproduced and do not necessarily predict final results; the risk that one or more of the clinical outcomes may materially change as patient enrollment continues, following more comprehensive reviews of the data and as more patient data become available; the risk that unforeseen adverse reactions or side effects may occur in the course of commercializing, developing and testing FYARRO; and risks related to Aadi's estimates regarding future expenses, capital requirements and need for additional financing. Additional risks and uncertainties that could cause actual outcomes and results to differ materially from those contemplated by the forward-looking statements are included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2023, including under the caption "Item 1A. Risk Factors," and elsewhere in Aadi's reports and other documents that Aadi has filed, or will file, with the SEC from time to time and available at . All forward-looking statements in this press release are current only as of the date hereof and, except as required by applicable law, Aadi undertakes no obligation to revise or update any forward-looking statement, or to make any other forward-looking statements, whether as a result of new information, future events or otherwise. All forward-looking statements are qualified in their entirety by this cautionary statement. This cautionary statement is made under the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Contact: [email protected] SOURCE Aadi Bioscience

After 3 years of follow-up in AMPECT trial, confirmed clinically meaningful overall response rate, including multiple patients with complete responses Demonstrated 40 months median duration of response and median survival >53 months Historically, median survival has ranged from 16 to 29 months in the setting of metastatic/unresectable malignant PEComa1,2 LOS ANGELES, March 1, 2024 /PRNewswire/ -- Aadi Bioscience, Inc (NASDAQ: AADI), a biopharmaceutical company focused on developing and commercializing precision therapies for patients with mTOR-driven cancers, announced today that long-term efficacy and safety results from its completed Phase 2 registrational AMPECT study of nab-sirolimus in malignant PEComa were published in the Journal of Clinical Oncology (JCO). The manuscript, "A Phase 2 Trial of nab-Sirolimus in Patients with Advanced Malignant Perivascular Epithelioid Cell Tumors (AMPECT): Long-term Efficacy and Safety Update," authored by Andrew J. Wagner, MD, PhD and colleagues can be accessed online ahead of print here. "We are excited to report the final outcomes of this registrational trial after an additional 3 years of follow-up. Responses to nab-sirolimus in patients with advanced PEComa lasted a median of 39.7 months," commented Dr. Wagner, Senior Physician at the Dana-Farber Cancer Institute and Associate Professor of Medicine at Harvard Medical School. "The median survival outcomes were consistent with the primary analysis, and the confirmed overall response rate remained at 38.7% and included an additional patient with a complete response. The long-term, durable responses to nab-sirolimus with tolerable safety are great news for patients with this rare disease." "The data published in JCO highlight the potential for nab-sirolimus to be an effective and highly differentiated treatment that may help patients suffering from this aggressive cancer achieve longer duration of responses and survival rates," said Loretta Itri, MD, Chief Medical Officer of Aadi. "We want to thank the principal investigators, study coordinators, and the patients who participated in AMPECT. We believe these results provide a significant contribution to sarcoma research and we look forward to continuing to advance nab-sirolimus." The AMPECT trial (NCT02494570) evaluated the efficacy and safety of nab-sirolimus in patients with advanced malignant PEComa and was the first prospective registrational study in this setting. Data from this Phase 2, open-label, single-arm, multi-center study served as the basis for the FDA approval of FYARRO® in advanced malignant PEComa regardless of mutational status. Key updates reported: Efficacy: At study completion, the confirmed ORR on the basis of independent radiographic review using RECIST v1.1 remained at 38.7% (95% CI, 21.8%-57.8%), with an additional converted confirmed complete response (CR) since the previously published analysis. The disease control rate (DCR) remained at 71% (95% CI, 52.0%–85.8%). Durability: At the time of the primary analysis, the median duration of response (mDOR) had not been reached. At study completion, the mDOR was reached at 39.7 months (95% CI, 6.5 months to NR), median PFS remained the same at 10.6 months (95% CI, 5.5-41.2 months), and median OS was 53.1 months (95% CI, 22.2 months to NR). Safety: The most common TRAEs were stomatitis (82.4%) and fatigue and rash (each 61.8%). No new or unexpected adverse events occurred, and no grade 4 or 5 TRAEs were reported. Bleeker JS, et al. Sarcoma. 2012;541626. Benson C, et al. Anticancer Res. 2014;34(7):3663-3668. About Aadi Bioscience, Inc. Aadi is a commercial-stage biopharmaceutical company focused on precision therapies for cancers to bring transformational therapies to cancer patients with alterations in the mTOR pathway, a key regulator of cell growth and cancer progression. Aadi received FDA approval and has commercialized FYARRO® for the treatment of adult patients with locally advanced unresectable or metastatic malignant perivascular epithelioid cell tumor (PEComa). Aadi has also initiated clinical trials of nab-sirolimus as a single agent or in combination for the treatment of other mTOR-driven cancers. PRECISION 1 (NCT05103358), a Phase 2 tumor-agnostic registration-intended trial in mTOR inhibitor-naïve malignant solid tumors harboring TSC1 or TSC2 inactivating alterations is currently enrolling in the US and globally. A multicenter, open-label, single-arm Phase 2 study of nab-sirolimus in combination with letrozole is currently enrolling patients with advanced or recurrent endometrioid endometrial cancer (NCT05997017); nab-sirolimus is also being investigated as a single agent in an open-label, single-arm, Phase 2 trial for the treatment of patients with neuroendocrine tumors of the GI tract, pancreas, or lung (NCT05997056). More information on the Company's development pipeline is available on the Aadi website at and connect with us on X (formerly Twitter) and LinkedIn. Forward-Looking Statements This press release contains certain forward-looking statements regarding the business of Aadi Bioscience that are not a description of historical facts within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements are based on the Company's current beliefs and expectations and may include, but are not limited to, statements relating to: the Company's plans and potential for success relating to commercializing FYARRO; expectations regarding the beneficial characteristics, safety, efficacy and therapeutic effects of FYARRO; plans related to further development and manufacturing of FYARRO; and the sufficiency of the Company's existing capital resources and the expected timeframe to fund the Company's future operating expenses and capital expenditure requirements. Actual results could differ materially from those anticipated in such forward-looking statements as a result of these risks and uncertainties, which include, without limitation, those associated with the ability to successfully commercialize FYARRO; uncertainties associated with the clinical development and regulatory approval of FYARRO in additional indications; the risk that unforeseen adverse reactions or side effects may occur in the course of commercializing, developing and testing FYARRO; and risks related to Aadi's estimates regarding future expenses, capital requirements and need for additional financing. Additional risks and uncertainties that could cause actual outcomes and results to differ materially from those contemplated by the forward-looking statements are included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2022, including under the caption "Item 1A. Risk Factors," and in Aadi's subsequent Quarterly Reports on Form 10-Q, and elsewhere in Aadi's reports and other documents that Aadi has or will file, with the SEC from time to time and available at . All forward-looking statements in this press release are current only as of the date hereof and, except as required by applicable law, Aadi undertakes no obligation to revise or update any forward-looking statement, or to make any other forward-looking statements, whether as a result of new information, future events or otherwise. All forward-looking statements are qualified in their entirety by this cautionary statement. This cautionary statement is made under the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Contact: IR@aadibio.com Company Codes: NASDAQ-NMS:AADI

Aadi initiates Phase 2 trial investigating the combination of nab-sirolimus with letrozole for the treatment of advanced or recurrent endometrioid-type endometrial cancer (EEC) LOS ANGELES, Oct. 19, 2023 /PRNewswire/ -- Aadi Bioscience, Inc. (NASDAQ: AADI), a biopharmaceutical company focused on developing and commercializing precision therapies for patients with mTOR pathway alterations, today announced e-poster presentations at the International Gynecologic Cancer Society (IGCS) 2023 Annual Global Meeting, taking place November 5-7, 2023, in Seoul, Korea. Abstract and e-poster presentation details are below: Title: "A phase 2, open-label, single-arm, prospective, multi-center study of nab-sirolimus plus letrozole in advanced or recurrent endometrioid endometrial cancer" Session Title: e-poster Date/Time: November 5-7, 2023 Authors: Lauren E. Dockery, MD, MS; Anna Priebe, MD; Linda Duska, MD, MPH; Angela K. Green, MD; Cara Mathews, MD; Fernanda Musa, MD; David O'Malley, MD; Allison Puechl, MD; Li Ding, MS, MA; Anita N. Schmid, PhD; Willis H. Navarro, MD; Brian Slomovitz, MD; Kathleen Moore, MD Abstract highlights: This is a Phase 2 open-label, multi-institutional study to evaluate the efficacy and safety of nab-sirolimus and letrozole in patients with advanced or recurrent endometrioid endometrial carcinoma, exploring the potential for this combination to produce additive anti-tumor activity in patients with endometrioid-type endometrial carcinoma (EEC) Dysregulation of mTOR signaling is implicated in the pathology of EEC, in which >80% harbor PTEN or PI3K/AKT/mTOR pathway alterations Prior clinical studies with mTOR inhibitors and letrozole in endometrial cancer patients have yielded promising results Alternative treatment options for advanced or recurrent endometrioid-type endometrial carcinoma (EEC) remain necessary despite recent pivotal data demonstrating improved outcomes with immunotherapy plus chemotherapy In preclinical models, intravenous nab-sirolimus demonstrates significantly higher tumor growth inhibition, intra-tumoral drug accumulation, and greater mTOR target suppression compared with oral inhibitors An encore presentation titled, "Phase 2, Multicenter, Open-label Basket Trial of nab-Sirolimus for Malignant Solid Tumors Harboring Pathogenic Inactivating Alterations in TSC1 and TSC2 (PRECISION1)" will be displayed as an e-poster during the meeting. More information can be found on the IGCS meeting website. About Aadi Bioscience, Inc. Aadi is a commercial-stage biopharmaceutical company focused on precision therapies for genetically defined cancers to bring transformational therapies to cancer patients with mTOR pathway driver alterations. Aadi received FDA approval and has commercialized FYARRO® for the treatment of adult patients with locally advanced unresectable or metastatic malignant perivascular epithelioid cell tumor (PEComa). Aadi has also initiated PRECISION1, a Phase 2 tumor-agnostic registration-intended trial in mTOR inhibitor-naïve malignant solid tumors harboring TSC1 or TSC2 inactivating alterations. More information on the Company's development pipeline is available on the Aadi website at and connect with us on Twitter and LinkedIn. Contact: Marcy Graham [email protected] SOURCE Aadi Bioscience