IACS-6274 With or Without Bevacizumab and Paclitaxel for the Treatment of Advanced Solid Tumors
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ClinicalTrials.gov Identifier: NCT05039801 |
Recruitment Status :
Recruiting
First Posted : September 10, 2021
Last Update Posted : April 5, 2023
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Condition or disease | Intervention/treatment | Phase |
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Advanced Endometrial Carcinoma Advanced Head and Neck Squamous Cell Carcinoma Advanced Malignant Solid Neoplasm Advanced Melanoma Advanced Ovarian Clear Cell Adenocarcinoma Chondrosarcoma Clinical Stage III Cutaneous Melanoma AJCC v8 Clinical Stage IV Cutaneous Melanoma AJCC v8 Pathologic Stage III Cutaneous Melanoma AJCC v8 Pathologic Stage IIIA Cutaneous Melanoma AJCC v8 Pathologic Stage IIIB Cutaneous Melanoma AJCC v8 Pathologic Stage IIIC Cutaneous Melanoma AJCC v8 Pathologic Stage IIID Cutaneous Melanoma AJCC v8 Pathologic Stage IV Cutaneous Melanoma AJCC v8 Recurrent Ovarian High Grade Serous Adenocarcinoma Refractory Endometrial Carcinoma Refractory Head and Neck Squamous Cell Carcinoma Refractory Melanoma Refractory Ovarian Clear Cell Adenocarcinoma Refractory Ovarian High Grade Serous Adenocarcinoma Stage III Ovarian Cancer AJCC v8 Stage III Uterine Corpus Cancer AJCC v8 Stage IIIA Ovarian Cancer AJCC v8 Stage IIIA Uterine Corpus Cancer AJCC v8 Stage IIIA1 Ovarian Cancer AJCC v8 Stage IIIA2 Ovarian Cancer AJCC v8 Stage IIIB Ovarian Cancer AJCC v8 Stage IIIB Uterine Corpus Cancer AJCC v8 Stage IIIC Ovarian Cancer AJCC v8 Stage IIIC Uterine Corpus Cancer AJCC v8 Stage IIIC1 Uterine Corpus Cancer AJCC v8 Stage IIIC2 Uterine Corpus Cancer AJCC v8 Stage IV Ovarian Cancer AJCC v8 Stage IV Uterine Corpus Cancer AJCC v8 Stage IVA Ovarian Cancer AJCC v8 Stage IVA Uterine Corpus Cancer AJCC v8 Stage IVB Ovarian Cancer AJCC v8 Stage IVB Uterine Corpus Cancer AJCC v8 | Biological: Bevacizumab Drug: Glutaminase-1 Inhibitor IACS-6274 Drug: Paclitaxel | Phase 1 |
PRIMARY OBJECTIVES:
I. To assess the safety and tolerability of oral glutaminase inhibitor IPN60090 (IACS-6274) as monotherapy (Part A) and in combination therapy with bevacizumab and weekly paclitaxel (Part B).
II. To determine the maximum tolerated dose (MTD) and the recommended phase 2 dose (RP2D) of IACS-6274 in combination with bevacizumab and weekly paclitaxel (Part B). (For Dose Escalation Only)
SECONDARY OBJECTIVES:
I. To assess the preliminary antitumor activity of IACS-6274 as monotherapy (Part A) in patients with or without biomarker selected tumor types.
II. To assess the preliminary antitumor activity of IACS-6274 in the combination with bevacizumab and weekly paclitaxel (Part B) in patients with recurrent platinum-resistant ovarian cancer.
III. To characterize the pharmacokinetics (PK) profile of IACS-6274 as a monotherapy (Part A) and in combination with bevacizumab and weekly paclitaxel (Part B). To evaluate biomarkers of patient stratification and correlate them with clinical outcome.
EXPLORATORY OBJECTIVE:
I. To collect biobank samples for potential future analysis of biomarkers (optional, informed consent required).
OUTLINE: This is a dose-escalation study of IACS-6274 followed by a dose-expansion study. Patients are assigned to 1 of 2 parts.
PART A: Patients receive IACS-6274 orally (PO) throughout the study.
PART B: Patients receive IACS-6274 PO, paclitaxel intravenously (IV), and bevacizumab IV throughout the study.
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 84 participants |
Allocation: | Non-Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Phase 1 Open-Label, Dose-Escalation and Dose-Expansion Study to Investigate the Safety, Pharmacokinetics, and Anti-Tumor Activity of IACS-6274 as Monotherapy and in Combination in Patients With Advanced Solid Tumors |
Actual Study Start Date : | September 9, 2021 |
Estimated Primary Completion Date : | May 29, 2026 |
Estimated Study Completion Date : | May 29, 2026 |

Arm | Intervention/treatment |
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Experimental: Part A (IACS-6274)
Patients receive IACS-6274 PO throughout the study.
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Drug: Glutaminase-1 Inhibitor IACS-6274
Given PO
Other Names:
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Experimental: Part B (IACS-6274, bevacizumab, paclitaxel)
Patients receive IACS-6274 PO, paclitaxel IV, and bevacizumab IV throughout the study.
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Biological: Bevacizumab
Given IV
Other Names:
Drug: Glutaminase-1 Inhibitor IACS-6274 Given PO
Other Names:
Drug: Paclitaxel Given IV
Other Names:
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- Incidence of adverse events (AEs) [ Time Frame: Up to 90 days ]Will be assessed by the rate of dose limiting toxicities at each dose level in the dose escalation, and the rate of AEs and the rate of Grade 3 and higher AEs in the dose escalation and dose expansion. All AEs will be coded according to the latest version of Medical Dictionary for Regulatory Activities and National Cancer Institute-Common Terminology Criteria for Adverse Events version 5.0.

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Provision of written informed consent prior to any study related procedures and compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol
- Patients >= 18 years of age at the time of study entry who agree to participate by giving written informed consent prior to participation in any study related activities
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Histologically or cytologically confirmed advanced solid tumors, specifically:
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Dose Escalation for Part A may include:
- Patients with tumors with actionable KEAP1/NFE2L2/STK11/NF1 mutations
- Patients with low ASNS expression levels (high-grade serous ovarian carcinoma [HGSOC] or endometrial cancer)
- Patients who had immunotherapy (IO) melanoma (minimum treatment duration of prior PD-1 or PD-L1-containing regimen of 12 weeks [or equivalent of 2 response evaluations])
- Patients with post-platinum head and neck squamous cell carcinomas (HNSCC)
- Patients with chondrosarcoma
- Patients with ARID1A mutant clear cell ovarian cancer
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Dose Escalation for Part B may include:
- Confirmed recurrent high-grade non-mucinous ovarian cancer that is platinum-resistant, defined as disease relapse within a platinum-free interval ([PFI]), or the time elapsed from the last date of platinum dose until progressive disease [PD]) of < 6 months
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Dose Expansion for Part B will be limited to:
- Confirmed recurrent high-grade non-mucinous ovarian cancer with low ASNS expression levels that is platinum-resistant, defined as disease relapse within a PFI of < 6 months, and with less than 5 prior therapies Note: all biomarker mutations/expression levels must be confirmed prior to study treatment
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- Patients must have received at least one line of therapy for advanced stage disease and be refractory or ineligible to available existing therapy(ies) known to provide clinical benefit for their condition
- Prior treatment with chemotherapy, radiotherapy, immunotherapy or any investigational therapies must have been completed at least 3 weeks or at least five half-lives, whichever is shorter, before the study drug administration, and all adverse events (AEs) (excluding alopecia and peripheral neuropathy) have either returned to =< grade 1 or stabilized
- Fresh and/or archival tumor tissue from the biopsy obtained between the completion of the most recent line of treatment until study entry must be available for mutation and biomarker analysis. Patients should not be put at undue risk to obtain fresh tumor biopsy. If available, archival tumor tissue from time of initial diagnosis will be collected in addition to the most recent biopsy (archival and/or fresh) will be collected. For ovarian cancer patients, a fresh biopsy must be collected in addition to archival tumor tissue. NOTE: No fresh tumor tissue will be required if a previous biopsy detected the selected mutations for each cohort. In all cases, procedures to obtain fresh tumor tissue should not put the patient at undue risk, and should only be performed if the risk is minimal (no greater than 2% risk of serious or severe complications)
- Patients must have at least 1 lesion (measurable and/or non-measurable) that can be accurately assessed at baseline by computed tomography (CT) or magnetic resonance imaging (MRI) and is suitable for repeated assessments
- Eastern Cooperative Oncology Group (ECOG) performance status =< 1 with no deterioration over the previous 2 weeks prior to baseline or day of first dosing
- Absolute neutrophil count (ANC) >= 1.0 x 10^9/L
- Platelets >= 1.0 x 10^9/L
- Hemoglobin >= 9 g/dL (>5.59 mmol/L)
- Creatinine clearance (CrCl) > 50 mL/min. Actual body weight should be used for calculating creatinine clearance using the Cockroft-Gault equation (except for patients with body mass index > 30 kg/m^2 when the lean body weight should be used, and without the need for chronic dialysis therapy)
- Serum total bilirubin =< 1.5 x upper limit of normal (ULN) (with the exception of patients with known Gilbert's syndrome: serum total bilirubin must be < 3 x ULN in these patients)
- Aspartate aminotransferase (serum glutamic oxaloacetic transaminase) and alanine aminotransferase (serum glutamic pyruvic transaminase) =< 2.5 x ULN or =< 5 x ULN for patients with liver metastases)
- Left ventricular ejection fraction >= 50%
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Female patients of non-childbearing potential, who are physiologically incapable of becoming pregnant, are eligible to enter and participate in the study if they are of:
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Non-childbearing potential (physiologically incapable of becoming pregnant), including any female who:
- Has had a hysterectomy, OR
- Has had a bilateral oophorectomy, OR
- Has had a bilateral salpingectomy, OR
- Is postmenopausal (total cessation of menses for >= 2 years, or follicle-stimulating hormone >= 50 IU/L)
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Female patients of childbearing potential, who are not post-menopausal or surgically sterile and intent to be sexually active with a non-sterile male partner, are required to use one form of highly effective contraception combined with a barrier method (male condom, female condom, cervical cap, diaphragm with spermicide, or contraceptive sponge with spermicide) of contraception starting before entering the study and until 4 weeks after the last dose of treatment.
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Highly effective non-hormonal contraceptive methods that are acceptable include:
- Total/true abstinence (total/true abstinence is defined as a patient who refrains from any form of sexual intercourse, and this is in line with their usual and/or preferred lifestyle) for the total duration of the study treatment and for at least 1 month after the last dose of study treatment. Periodic abstinence using methods such as calendar ovulation, symptothermal, post ovulation methods, declaration of abstinence Proprietary of MD Anderson Cancer Center solely for the duration of a trial, or withdrawal are not acceptable methods of contraception
- Having a vasectomized sexual partner, who received post-vasectomy confirmation of azoospermia, combined with a barrier method as described above
- Bilateral tubal occlusion combined with a barrier method as described above
- Intrauterine device with copper-banded coils, combined with a barrier method as described above
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Highly effective hormonal contraceptive methods that are acceptable include:
- Combined oral pill contraception (normal and low-dose oral pills, or progesterone-based oral pills using desogestrel) combined with a barrier method as described above. NOTE: cerazette is currently the only highly efficacious progesterone-based pill available
- Injection (e.g., medroxyprogesterone) combined with a barrier method as described above
- Patch (e.g., norelgestromin or ethinyl estradiol transdermal system) combined with a barrier method as described above
- Implants (etonorgestrel-releasing) combined with a barrier method as described above
- Intravaginal device (e.g., ethinyl estradiol- or etonogestrel-releasing) combined with a barrier method as described above
- Intrauterine system (levonorgestrel-releasing) combined with a barrier method as described above
- In addition to the to use one form of highly effective contraception combined with a barrier method, female patients of childbearing potential must have a negative serum pregnancy test at screening (within 7 days of the start of treatment) and must not be breastfeeding
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Non-sterile men, who are not sexually abstinent and intend to be sexually active with a women of childbearing potential, must use a condom from the start of the trial and until 16 weeks after the last dose of treatment, or must practice total abstinence (total/true abstinence is defined as a patient who refrains from any form of sexual intercourse, and this is in line with their usual and/or preferred lifestyle) for the total duration of the study treatment and at least 3 months after the last dose of study treatment. Periodic abstinence, the rhythm method, and the withdrawal method are not acceptable methods of contraception. Female partners of childbearing potential should consider the use of at least one contraception method describe above. If the female partner is pregnant, male participants should use a condom plus spermicide
- Note: Participants should not donate blood or blood components while participating in this study and through 3 months after the last dose of study intervention
Exclusion Criteria:
- Prior malignancy within the previous 2 years except for locally curable cancers that have been cured, such as basal or squamous cell skin cancer, or carcinoma in situ of the cervix, breast or bladder
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Known primary central malignancy or symptomatic central nervous system metastasis(es)
- Note: Patients with stable, previously treated brain metastases may participate if neurologic symptoms have resolved, patients have been off steroids for at least 7 days, and there is no evidence of disease progression by imaging for at least 2 weeks before the first dose of study treatment
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Uncontrolled, significant intercurrent or recent illness including, but not limited to, the following cardiac conditions:
- Any unstable cardiac arrhythmia within 6 months prior to enrolment
- Prolongation of the Fridericia corrected QT (QTcF) interval defined as > 450 ms for males and > 470 ms for females
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History of any of the following cardiovascular conditions within 6 months of enrolment:
- Cardiac angioplasty or stenting, myocardial infarction, unstable angina, coronary artery
- Bypass graft surgery, symptomatic peripheral vascular disease, class III or IV congestive heart failure, as defined by the New York Heart Association
- Major surgical intervention within 28 days before study drug administration, or an anticipated need for major surgery during the study
- Significant acute or chronic infections
- Any psychiatric condition that would prohibit the understanding or rendering of informed consent
- Treatment with strong cytochrome P450 (CYP450) subtype 3A4 (CYP3A4) inducers (including St John's wort) and inhibitors (including grapefruit juice) within 7 days of the first dose of study drug
- Treatment with strong CYP450 subtype 2D6 (CYP2D6) inhibitors within 7 days of the first dose of study drug
- Radiotherapy within 4 weeks prior to the start of study drug. Palliative radiotherapy for symptomatic control is acceptable if completed at least 2 weeks prior to study drug administration and no additional radiotherapy for the same lesion is planned
- Underlying medical conditions (such as severe or uncontrolled systemic diseases, including uncontrolled hypertension, renal transplant and active bleeding diseases), for which that in the investigator's opinion, will make the administration of study drug hazardous or obscure the interpretation of toxicity determination or AEs
- History of allergic reactions attributed to compounds of similar chemical or biological composition to any of the compounds in the study
- Known alcohol or drug abuse
- Legal incapacity or limited legal capacity
- Inability to swallow oral medications (capsules and tablets) without chewing, breaking, crushing, opening or otherwise altering the product formulation. Patients should not have gastrointestinal illnesses that would preclude the absorption of IACS-6274, which is an oral agent
- Patients unwilling to comply with protocol requirements related to the assigned part
- Any other disease, physical examination finding, or clinical laboratory finding that, in the investigator's opinion, gives reasonable suspicion of a disease or condition that contraindicates the use of an investigational drug, may affect the interpretation of the results, render the patient at high risk from treatment complications or interferes with obtaining informed consent
- PART B (DOSE ESCALATION AND DOSE EXPANSION) SPECIFIC EXCLUSION CRITERIA
- Known severe hypersensitivity reactions to monoclonal antibodies, any history of anaphylaxis, or uncontrolled asthma (that is, three or more features of partially controlled asthma)
- Patient has a known hypersensitivity to paclitaxel or bevacizumab components or excipients
- Patient has a history of bowel obstruction, including sub-occlusive disease, related to the underlying disease and history of abdominal fistula, gastrointestinal perforation, or intra-abdominal abscesses. Evidence of recto-sigmoid involvement by pelvic examination or bowel involvement on CT scan or clinical symptoms of bowel obstruction
- Patient has proteinuria as demonstrated by urine protein:creatinine ratio >= 1.0 at screening or urine dipstick for proteinuria >= 2 (patients discovered to have >= 2 proteinuria on dipstick at baseline should undergo 24-hour urine collection and must demonstrate < 2 g of protein in 24 hours to be eligible)
- Patient is at increased bleeding risk due to concurrent conditions (e.g., major injuries or surgery within the past 28 days prior to start of study treatment, history of hemorrhagic stroke, transient ischemic attack, subarachnoid hemorrhage, or clinically significant hemorrhage within the past 3 months)
- Patient has clinically significant cardiovascular disease (e.g., significant cardiac conduction abnormalities, uncontrolled hypertension, myocardial infarction, cardiac arrhythmia or unstable angina, New York Heart Association grade 2 or greater congestive heart failure, serious cardiac arrhythmia requiring medication, grade 2 or greater peripheral vascular disease, and history of cerebrovascular accident [CVA]) within 6 months of enrollment
- Patient has pre-existing peripheral neuropathy that is grade >= 2 by Common Terminology Criteria for Adverse Events (CTCAE) version 4 criteria
- Patient requires paracentesis 2 weeks prior to trial enrolment

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05039801
Contact: Timothy Timothy, MD | 713-563-1930 | tyap@mdanderson.org |
United States, Texas | |
M D Anderson Cancer Center | Recruiting |
Houston, Texas, United States, 77030 | |
Contact: Timothy A. Yap, MD 713-563-1930 tyap@mdanderson.org | |
Principal Investigator: Timothy A. Yap, MD |
Principal Investigator: | Timothy A Yap, MD | M.D. Anderson Cancer Center |
Responsible Party: | M.D. Anderson Cancer Center |
ClinicalTrials.gov Identifier: | NCT05039801 |
Other Study ID Numbers: |
2021-0265 NCI-2021-09063 ( Registry Identifier: CTRP (Clinical Trial Reporting Program) ) 2021-0265 ( Other Identifier: M D Anderson Cancer Center ) |
First Posted: | September 10, 2021 Key Record Dates |
Last Update Posted: | April 5, 2023 |
Last Verified: | April 2023 |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Chondrosarcoma Carcinoma Melanoma Carcinoma, Squamous Cell Adenocarcinoma Ovarian Neoplasms Carcinoma, Ovarian Epithelial Squamous Cell Carcinoma of Head and Neck Skin Neoplasms Endometrial Neoplasms Cystadenocarcinoma, Serous Adenocarcinoma, Clear Cell Neoplasms, Glandular and Epithelial Neoplasms by Histologic Type Neoplasms |
Neuroendocrine Tumors Neuroectodermal Tumors Neoplasms, Germ Cell and Embryonal Neoplasms, Nerve Tissue Nevi and Melanomas Neoplasms, Squamous Cell Endocrine Gland Neoplasms Neoplasms by Site Ovarian Diseases Adnexal Diseases Genital Diseases, Female Female Urogenital Diseases Female Urogenital Diseases and Pregnancy Complications Urogenital Diseases Genital Neoplasms, Female |