A Study of AL58805 in Advanced, Metastatic GYN, STS or Breast Cancers
Phase 1b/2a Clinical Study of AL58805 Combining With Other Anti-tumor Agents in Advanced, Metastatic GYN, STS or Breast Cancers
1 other identifier
interventional
138
1 country
1
Brief Summary
This phase 1b/2a study evaluates AL58805, an oral investigational drug that blocks PI3K and mTOR signaling, in combination with one of three anticancer treatments: AL8326 (veonetinib), eribulin, or fulvestrant. Adults with recurrent, advanced, or metastatic endometrial cancer, cervical cancer, soft tissue sarcoma, or breast cancer may be eligible after at least one prior standard treatment has failed or could not be tolerated and no effective standard treatment option remains. In phase 1b, small groups of participants will receive different doses of AL58805 with a fixed dose of the partner treatment to identify a recommended combination dose based on dose-limiting side effects. In phase 2a, disease-specific groups will receive the selected combination dose to estimate the objective response rate and further evaluate duration of response, progression-free survival, overall survival, safety, pharmacokinetics, and exploratory tumor biomarkers. Protocol treatment may continue for up to 12 months, with continued treatment beyond 12 months possible for participants who remain clinically benefiting and receive investigator and sponsor approval.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Sep 2026
Longer than P75 for phase_1
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 12, 2026
CompletedStudy Start
First participant enrolled
September 1, 2026
CompletedFirst Posted
Study publicly available on registry
September 10, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2030
ExpectedStudy Completion
Last participant's last visit for all outcomes
September 1, 2031
September 10, 2026
August 1, 2026
4 years
August 12, 2026
September 3, 2026
Conditions
Outcome Measures
Primary Outcomes (2)
Recommended Combination Dose (RCD)
Determine the recommended combination dose (RCD) of AL58805 in combination with AL8326, Eribulin, or Fulvestrant based on the incidence of dose-limiting toxicities (DLTs) during Phase 1b. The RCD is defined as the highest evaluated dose level at which fewer than 33% of participants experience a DLT.
36 months
Objective Tumor Response Rate (ORR)
Percentage of participants who achieve a Complete Response (CR) or Partial Response (PR) as the best overall tumor response according to Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.
36 months
Secondary Outcomes (6)
Pharmacokinetic endpoint: Time to Maximum Plasma Concentration (Tmax)
36 months
Pharmacokinetic endpoint: Maximum Observed Plasma Concentration (Cmax)
36 months
Pharmacokinetic endpoint: Area Under the Plasma Concentration-Time Curve (AUC)
36 months
Duration of Response (DOR)
36 months
Progression-Free Survival (PFS)
36 months
- +1 more secondary outcomes
Study Arms (6)
P1b-Cohort A: (AL58805 + AL8326 Endometrial/Cervical/STS cancer, RCD-A)
EXPERIMENTALThis cohort evaluates the safety and tolerability of AL8326 (40 mg) in combination with AL58805 (10 mg) in a 3+3 DLT evaluation design. If DLT occurs, AL58805 will be reduced to 5 mg; If no DLT occurs at 10 mg, it will be escalated to 20 mg.
P1b-Cohort B: (AL58805 + Eribulin, Soft Tissue Sarcoma/Breast Cancer, RCD-B)
EXPERIMENTALThis cohort evaluates the safety and tolerability of Eribulin (1.4 mg/m²IV; 21 day-cycles of local standard) in combination with AL58805(10 mg). If DLT occurs, AL58805 will be reduced to 5 mg; If no DLT occurs at 10 mg bid, it will be escalated to 20 mg.
P1b-Cohort C: (AL58805 + Fulvestrant, HR+/other Breast Cancer, RCD-C)
EXPERIMENTALThis cohort evaluates the safety and tolerability of Fulvestrant (500 mg IM) in combination with AL58805 (10 mg). If DLT occurs, AL58805 will be reduced to 5 mg; If no DLT occurs at 10 mg, it will be escalated to 20 mg.
P2a-Cohort D: (AL58805 + AL8326, Endometrial/Cervical/STS cancer)
EXPERIMENTALThis cohort evaluates the safety and efficacy of AL8326 + AL58805 at RCD-A (determined from Cohort A) in patients with advanced Endometrial (n=17), Cervical (n=17) and STS cancer (n=17) (≥2nd line, age ≥18). Treatment continues until PD or intolerability.
P2a-Cohort E: (AL58805 + Eribulin, Breast cancer/Soft Tissue Sarcoma)
EXPERIMENTALThis cohort evaluates the safety and efficacy of Eribulin + AL58805 at RCD-B (determined from Cohort B) in patients with STS (n=17) and Breast cancer (n=17) (≥2nd-line, age ≥18). Treatment continues until PD or intolerability.
P2a-Cohort F: (AL58805 + Fulvestrant, HR+/other Breast Cancer)
EXPERIMENTALThis cohort evaluates the safety and efficacy of Fulvestrant + AL58805 at RCD-C(determined from Cohort C) in patients with HR+/other Breast cancer (≥2nd-line, age ≥18). Treatment continues until PD or intolerability (n=17). Other breast cancer in phase 1b/2a: HER2-, PIK3CA mutant and PIK3CA Wild-Type etc.
Interventions
AL58805 is a novel chemical-structure antitumor drug with independent intellectual property rights. It functions as a novel dual-target PI3K/mTOR kinase inhibitor, exhibiting effects such as inhibiting tumor cell growth and proliferation, suppressing tumor nutrient metabolism, and exerting anti-angiogenic activity. By simultaneously inhibiting both PI3K and mTOR, it completely blocks the entire PI3K/AKT/mTOR signaling pathway at relatively low safe doses, thereby enhancing antitumor efficacy.
AL8326 is a novel small molecule multi-receptor tyrosine kinase inhibitor, which shows highly selective inhibition of fibroblast growth factor receptor (FGFr1, FGFr2, FGFr3), vascular endothelial growth factor receptor (VEGFr1, VEGFr2, VEGFr3) and Aurora-B.
Eribulin Mesylate is a microtubule dynamics inhibitor used in the treatment of certain advanced solid tumors. It works by binding to tubulin, inhibiting the dynamic assembly and disassembly of microtubules, blocking mitosis in cancer cells, and inducing apoptosis.
Fulvestrant is a class of estrogen receptor antagonist, estrogen receptor downregulation agents for anti-breast cancer treatment.
Eligibility Criteria
You may qualify if:
- Age ≥ 18 years.
- Histologically proven diagnosis of:
- Pathologically confirmed recurrent or metastatic solid tumors such as Endometrial cancer, Cervical cancer, STS and Breast cancer;
- Failure of at least 1 prior line of standard therapy (disease progression after treatment or intolerable treatment toxicities);
- \- Patients with mismatch repair deficient/microsatellite-instability high tumors must have received a prior anti-PD-1/PD-L1 therapeutic agent.
- No standard and effective treatment available.
- Have measurable disease defined by RECIST 1.1 confirmed by CT or MRI scan within 28 days of enrollment.
- Life expectancy of ≥ 3 months at the time of enrollment.
- Able to take orally administered study medication.
- Have adequate baseline function and performance status within 28 days of enrollment:
- Bone marrow function: absolute neutrophil count (ANC) ≥ 1,500/mm3, platelets ≥75,000/mm3 and Hemoglobin ≥ 9g/dl.
- Renal function: creatinine ≤ 1.5 x institutional upper limit normal (ULN) or if creatinine is \> 1.5 x ULN, creatinine clearance must be \> 50 mL/min.
- Hepatic function: bilirubin ≤ 1.5 x ULN or ≤ 3.0 x ULN for subjects with Gilbert Syndrome; No liver metastasis, AST and ALT ≤ 2.5 × ULN; When liver metastasis occurs, AST and ALT ≤ 5.0 × ULN.
- Coagulation profile: international normalized ratio (INR) is ≤ 1.5 and an aPTT or PTT \< 1.2 x ULN.
- ECOG performance ≤ 2
- +5 more criteria
You may not qualify if:
- Subjects presenting with any of the following will not be included in the study:
- Treatment with an investigational agent within 28 days of enrollment.
- Cytotoxic chemotherapy, immunotherapy, or radiotherapy within 28 days (42 days in cases of mitomycin C, nitrosourea, lomustine) prior to enrollment.
- Concomitant treatment with strong inhibitors or inducers of CYP3A4, CYP2C9 and CYP2C19 within 14 days prior to enrollment and during the study unless there is an emergent or life- threatening medical condition that required it.
- Known allergy or intolerance to investigational drugs (e.g.AL58805, AL8326, eriblin, fulvestrant, etc.) and excipients. (For example, who have had intolerable adverse reactions such as local injection site pain or systemic discomfort after application of fulvestrant should be excluded.)
- Other invasive malignancies, with the exception of non-melanoma skin cancer, who had (or have) any evidence of other cancer presents within the last 5 years prior to enrollment or whose previous cancer treatment contraindicates this protocol therapy.
- Myocardial infarction or unstable angina within 6 months prior to enrollment; New York Heart Association (NYHA) Grade II or greater congestive heart failure; serious cardiac arrhythmia requiring medication; and Grade II or greater peripheral vascular disease.
- Pre-existing uncontrolled hypertension as documented by two baseline blood pressure readings taken at least five minutes apart, defined as systolic BP \>150 mm Hg or diastolic BP\>90 mm Hg pressure.
- QTc≥ 480 msec on screening ECG per Fridericia's formula.
- History of or existing risk factors for Torsades de pointes (TdP) (e.g., heart failure, hypokalemia, family history of Long QT Syndrome).
- Concurrent use of concomitant medications that prolong the QT/QTc interval.
- History of significant vascular disease (e.g. aortic aneurysm, aortic dissection, peripheral vascular disease).
- Patients with severe chronic obstructive pulmonary disease (COPD) in acute exacerbation, severe pulmonary fibrosis (such as idiopathic pulmonary fibrosis with rapid disease progression), etc.
- History or evidence upon physical examination of central nervous system (CNS) disease including primary brain tumor; seizures not controlled with standard medical therapy; and history of cerebrovascular accident (CVA, stroke), transient ischemic attack (TIA), or subarachnoid hemorrhage within 6 months of enrollment.
- a. Subjects with metastatic CNS tumors may participate in this study if the subject is \> 28 days from therapy completion (including radiation and/or surgery), is clinically stable at the time of study enrollment, and is not receiving corticosteroid therapy.
- +18 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
The University of Texas MD Anderson Cancer Center
Houston, Texas, 77030, United States
Related Publications (22)
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PMID: 39817679BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Judy Chen
Advenchen Pharmaceuticals, LLC.
- PRINCIPAL INVESTIGATOR
Jeffrey A How, MD
UT MD Anderson
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 12, 2026
First Posted
September 10, 2026
Study Start
September 1, 2026
Primary Completion (Estimated)
September 1, 2030
Study Completion (Estimated)
September 1, 2031
Last Updated
September 10, 2026
Record last verified: 2026-08
Data Sharing
- IPD Sharing
- Will not share