Overview

Eligibility

Design Details

Arms & Interventions

Outcome Measures

Trial Sites

Source: NCT06654050

Withdrawn

Alrizomadlin (APG-115) in Subjects With BAP1 Cancer Syndrome and Early-Stage Mesothelioma

Interventional

Phase 2

National Institutes of Health Clinical Center

Sponsor: National Cancer Institute (NCI)

Last Updated: March 16, 2026
Notice- Information is sourced from public registries and may not reflect real-time changes at the local site.

Background:

Mesothelioma is a rare cancer typically caused by exposure to asbestos and related fibers. Most people with mesothelioma survive less than 5 years after diagnosis. About 3000 people in the United States die from this disease each year. People with inherited mutations in the BAP1 gene [called BAP1 Cancer Syndrome (BCS)] are more likely to develop mesothelioma and other cancers such as melanomas and renal cell carcinomas without asbestos exposure. Almost all people with BCS develop multiple cancers, of which mesothelioma is the most commonly observed.

Objective:

To test a study drug (APG-115) in participants with BAP1 Cancer Syndrome (BCS) and early-stage mesothelioma.

Eligibility:

People aged 18 years and older with germline BAP1 mutations and early-stage mesothelioma that does not yet need standard treatment are eligible for protocol enrollment. Participants will be required to also enroll in NIH protocols 20-C-0106 and 06-C-0014 which allow for pre- and post-treatment biopsies and bloodwork to be obtained for additional research studies.

Design:

Participants will be screened. They will have a physical exam with blood tests. Their medical records will be reviewed. They will have imaging scans and tests of their heart and lung functions. A procedure using a flexible tube with a camera and light will be inserted into the participant s chest and abdomen through a small cut to look at the tumors and to collect a tissue sample (biopsy).

APG-115 capsules are taken by mouth. Participants will take the drug at home every other day for the first 13 days of the 21-day treatment cycles.

On the first day of each cycle, researchers will call or email participants to check on their health.

Participants will have blood tests 2 times a week during the first 2 cycles; after that, the blood tests will be weekly. These blood tests can be done at a local medical facility or at the NIH Clinical Center.

Participants may continue treatment for up to 16 cycles.

Imaging scans, biopsy, and other tests will be repeated after 8 and 16 cycles.

Show Detailed Description

Treatment Category

Other Drugs

Required Mutations

None

Trial Started

March 19, 2026

Last Updated by Sponsor

March 16, 2026

Estimated Completion

December 1, 2027

Contact Study

Name:Deneise C Francis, R.N.

Email:deneise.francis@nih.gov

Phone:(240) 858-3974

Name:David S Schrump, M.D.

Email:david_schrump@nih.gov

Phone:(240) 760-6239

Eligibility

Inclusion Criteria

* History of germline BRCA1-Associated Protein-1 (BAP1) mutations.

* Histologically confirmed by NCI Laboratory of Pathology (LP) subclinical/early-stage mesotheliomas.

* Participants with other early-stage BAP1-associated malignancies in addition to subclinical, early-stage mesotheliomas are eligible for the study.

* The extent of the disease (Tx by clinical staging criteria) must be insufficient to warrant approved front-line standard of care (SOC) therapies (surgery, chemotherapy, immunotherapy). Participants with clinical T1 tumors are eligible for protocol if they have been offered and have refused front-line SOC therapy.

* Age >=18 years.

* Evaluable disease as confirmed by minimally invasive (videoscopic) assessment (thoracoscopy and/or laparoscopy with biopsy).

* Willingness to undergo pre- and post-treatment minimally invasive thoracoscopy and/orlaparoscopy to assess treatment response.

* Willingness to co-enroll on 20-C-0106 (Prospective Evaluation of High Resolution Dual Energy Computed Tomographic Imaging, Noninvasive (Liquid) Biopsies, and Minimally Invasive Surgical Surveillance for Early Detection of Mesotheliomas in Patients with BAP1 Tumor Predisposition Syndrome) and 06-C-0014 (Prospective Evaluation of Genetic and Epigenetic Alterations in Patients with Thoracic) to enable collection/processing of tumor, blood and normal pleura).

* ECOG performance status <=1

* Adequate pulmonary reserve evidenced by forced expiratory volume (FEV)1 and diffusing capacity of the lungs for carbon monoxide (DLCO) >=35% predicted on screening pulmonary function testing (PFTs).

* Oxygen saturation >=92% on room air by pulse oximetry at screening.

* Adequate renal, hepatic, and hematopoietic function as defined below:

* leukocytes >= 3,000/micro L

* absolute neutrophil count >=1,500/micro L (without transfusion or cytokine support within 2 months prior to study treatment initiation)

* absolute lymphocyte count > 800/micro L

* platelets >= 100,000/micro L and < 1,200,000/micro L

* prothrombin time (PT) no more than 2 seconds above the upper limit of normal (ULN)

* total bilirubin < 1.5 X institutional ULN OR direct bilirubin <= 1 ULN for participants with total bilirubin >= 1.5 ULN serum albumin >=2.0 mg/dL

* aspartate aminotransferase (AST) <=2.5 X institutional ULN

* alanine aminotransferase (ALT) <= 2.5 X institutional ULN

* estimated glomerular filtration rate (eGFR) >=60 mL/min/1.73 m2.

* Individuals of child-bearing potential (IOCBP) and those able to father a child must agree to use an effective method of contraception (barrier, hormonal, intrauterine device (IUD), surgical sterilization) from the study entry and up to 3 months after the last dose of APG-115.

* Nursing (i.e., breastfeeding/chest feeding) participants must be willing to discontinue nursing from study treatment initiation through 4 weeks after the last dose of the study drug.

* The ability of a participant to understand and the willingness to sign a written informed consent document.

Exclusion Criteria

* Participants with any cancers requiring front-line standard of care treatment.

* Clinically significant cardiovascular/cerebrovascular disease as follows: cerebral vascular accident/stroke within 6 months prior to study treatment initiation, myocardial infarction within 6 months prior to study treatment initiation unless revascularized post infarction and cleared by cardiology consultants.

* Unstable angina, congestive heart failure (New York Heart Association Classification Class >= II (https://manual.jointcommission.org/releases/TJC2016A/DataElem0439.html#:~:text=Class%20II%20%2D%20Mild%20symptoms%20(mild,Class%20IV%20%2D%20Severe%20limitations.), serious cardiac arrhythmia, clinically significant bleeding or clinically significant pulmonary embolism at screening.

* QTcF interval > than the 470 ms.

* Therapeutic anticoagulation within 2 weeks prior to study treatment initiation. Note: Oral agents and Lovenox, etc., are monitored by factor 10 levels, not PT or partial thromboplastin time (PTT).

* Participants receiving inhibitors or inducers of CYP3A4/3A5 as well as participants receiving P-glycoprotein inhibitors within 2 weeks prior to study treatment initiation treatment initiation

(https://www.fda.gov/Drugs/DevelopmentApprovalProcess/DevelopmentResources/DrugInteractionsLabeling/ucm093664.htm#table2-2,table3-3,table5-2,

* Positive Hepatitis A (HAV) serological test, positive Hepatitis B (HBV) serological test, or positive Hepatitis C (HCV) serological test with detected quantitative HCV RNA at screening.

* Participants seropositive for human immunodeficiency virus (HIV) infection.

* Active infections requiring systemic therapy.

* Immunosuppressive medications within 4 weeks prior to study treatment initiation except non-systemic corticosteroids.

* Positive beta human chorionic gonadotropin (beta-HCG) serum or urine pregnancy test performed in individuals of childbearing potential at screening.

* Uncontrolled intercurrent illness evaluated by medical history and physical exam or situation that is not stable (e.g., recent hospitalization, Emergency Room visit or undergoing medication changes) that would potentially increase in risk of participant.

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Design Details

AllocationNon-Randomized

Intervention ModelSingle Group Assignment

MaskingNone (Open Label)

Number to Enroll15

Arms & Interventions

Arms

Interventions

Type: Experimental

Description: APG-115

Interventions:

alrizomadlin

Outcome Measures

Primary Outcome Measures

To determine stabilization or disease improvement rates in participants with early-stage mesotheliomas arising in the context of BAP1 Cancer Syndrome (BCS) following APG-115 treatmentbaseline, and after every 8 treatment cycles (Course 1 and Course 2)

Fraction of evaluable participants who are able to have stabilization or improvement of disease will be reported along with a 95% confidence interval. Response rates will be calculated as the percent of participants whose best response is a stabilization or improvement of disease.

Secondary Outcome Measures

To evaluate the safety of APG-115starts at initiation of study drug, assessed Days 1 of every cycle, and through 30 days (safety visit) after the last study drug administration

Safety and tolerability of the agents will be evaluated by reviewing the AEs and reporting events as required. Toxicity information recorded will include the type, severity, time of onset, time of resolution, and probable association with the study regimen.

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Trial Sites

National Institutes of Health Clinical Center

Bethesda, Maryland, US

Name:NCI Medical Oncology Referral Office

Email:ncimo_referrals@nih.gov

Phone:888-624-1937

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