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Metastatic Pancreatic Ductal AdenocarcinomaPhase 1NCT05685602

CA-4948 Added to Standard Chemotherapy to Treat Metastatic or Unresectable Pancreatic Cancer

A Phase 1 study testing Biopsy Procedure, Biospecimen Collection and Computed Tomography in people with Metastatic Pancreatic Ductal Adenocarcinoma and Stage III Pancreatic Cancer AJCC v8, run by National Cancer Institute (NCI) at 26 sites in United States.

Suspended

Paused. Enrolment is on hold for now and may resume.

Official record
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Trial summary

This phase I trial tests the safety, side effects, and best dose of emavusertib (CA-4948) in combination with gemcitabine and nab-paclitaxel in treating patients with pancreatic ductal adenocarcinoma that has spread from where it first started (primary site) to other places in the body (metastatic) or cannot be… Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Biopsy Procedure, Biospecimen Collection and Computed Tomography
Could I receive a placebo?
No, everyone receives an active treatment
How many people
43 participants
Where
26 sitesUnited States
Study dates
12 Jun 2023to 30 Apr 2027
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients must have histologically or cytologically confirmed adenocarcinoma of the pancreas that is metastatic or unresectable and for which standard curative or palliative measures do not exist or are no longer effective
  • Patients must have had disease progression on or after fluorouracil (5-FU)-based therapy for metastatic or unresectable pancreatic ductal adenocarcinoma (PDAC). If received gemcitabine-based regimen as adjuvant therapy, then gemcitabine and nab-paclitaxel (if used) should be >12 months from study enrollment. Prior use of gemcitabine/nab-paclitaxel for metastatic or unresectable disease is not allowed
  • Age >= 18 years. Because no dosing or adverse event data are currently available on the use of CA-4948 in combination with gemcitabine and nab-paclitaxel in patients < 18 years of age, children are excluded from this study
  • Eastern Cooperative Oncology Group (ECOG) performance status =< 2 (Karnofsky >= 60%)
  • Absolute neutrophil count >= 1,500/mcL
  • Platelets >= 100,000/mcL
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  • Total bilirubin =< 1.5 x institutional upper limit of normal (ULN)
  • Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 3 x institutional ULN
  • Glomerular filtration rate (GFR) >= 60 mL/min (based on the calculated Chronic Kidney Disease Epidemiology Collaboration [CKD-EPI] glomerular filtration rate estimation)
  • Creatine phosphokinase (CPK) elevation at the screening < grade 2 (creatine phosphokinase [CPK] =< 2.5 ULN)
  • Patients on a cholesterol lowering statin must be on a stable dose with no dose changes within 3 weeks prior to study start
  • Human immunodeficiency virus (HIV)-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months are eligible for this trial as long as their anti-retroviral therapy does not have the potential for drug-drug interactions as judged by the treating investigator
  • For patients with evidence of chronic hepatitis B virus (HBV) infection, the HBV viral load must be undetectable on suppressive therapy, if indicated
  • Patients with a history of hepatitis C virus (HCV) infection must have been treated and cured. For patients with HCV infection who are currently on treatment, they are eligible if they have an undetectable HCV viral load
  • Patients with treated brain metastases are eligible if follow-up brain imaging after at least 4 weeks following central nervous system (CNS)-directed therapy shows no evidence of progression
  • Patients with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen are eligible for this trial
  • Patients with known history or current symptoms of cardiac disease, or history of treatment with cardiotoxic agents, should have a clinical risk assessment of cardiac function using the New York Heart Association Functional Classification. To be eligible for this trial, patients should be class 2B or better
  • Patients must have lesions amenable to research biopsy for those enrolling to the expansion cohort. The biopsy should be deemed feasible and safe for pre-biopsy lesion assessment criteria
  • The effects of CA-4948, nab-paclitaxel, and gemcitabine on the developing human fetus are unknown. For this reason and because gemcitabine is known to be teratogenic, embryotoxic, and fetotoxic in mice and rabbits, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, for the duration of study participation, and 90 days after completion of CA-4948, nab-paclitaxel, and gemcitabine administration. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. Men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of study participation, and 90 days after completion of CA-4948, nab-paclitaxel, and gemcitabine administration
  • Ability to understand and the willingness to sign a written informed consent document. Participants with impaired decision-making capacity who have a legally-authorized representative (LAR) and/or family member available will also be eligible
  • Patients must have measurable disease per Response Evaluable Criteria in Solid Tumors (RECIST) 1.1

Who cannot join

  • Patients who have had chemotherapy or radiotherapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to entering the study
  • Patients who have not recovered from clinically significant adverse events due to prior anti-cancer therapy (i.e., have residual toxicities > grade 1) with the exception of neuropathy, which should resolve to grade 2, or alopecia
  • History of other malignancy with the exception of 1) malignancies for which all treatment was completed at least 2 years before registration and the patient has no evidence of disease; 2) or known indolent malignancies that do not require treatment and will likely not alter the course of treatment of disease under treatment
  • History of allogeneic organ or stem cell transplant
  • Current use or anticipated need for alternative, holistic, naturopathic, or botanical formulations used for the purpose of cancer treatment
  • Patients who are receiving any other investigational agents
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  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to CA-4948 or other agents used in study
  • Patients receiving any medications or substances that are inhibitors or inducers of CYP3A4 are ineligible due to CA-4948 and nab-paclitaxel. Because the lists of these agents are constantly changing, it is important to regularly consult a frequently-updated medical reference. As part of the enrollment/informed consent procedures, the patient will be counseled on the risk of interactions with other agents, and what to do if new medications need to be prescribed or if the patient is considering a new over-the-counter medicine or herbal product
  • Patients with uncontrolled intercurrent illness
  • Pregnant women are excluded from this study because gemcitabine is nucleoside analogue with the potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with gemcitabine, breastfeeding should be discontinued if the mother is treated with gemcitabine. These potential risks may also apply to other agents used in this study
  • Prolonged Fridericia's correction formula (QTcF) (> 470 in females, > 450 in males) on screening electrocardiogram (ECG)
  • Gastrointestinal condition which could impair absorption of CA-4948 or inability to ingest CA-4948
  • Severe obstructive pulmonary disease or interstitial lung disease
  • History of rhabdomyolysis or elevated creatine phosphokinase (CPK)

Trial locations and contacts

26 sites in 1 country.

26 sites in 1 country

United States26 sites

  • UCHealth University of Colorado Hospital

    Aurora, Colorado, 80045

  • Johns Hopkins University/Sidney Kimmel Cancer Center

    Baltimore, Maryland, 21287

  • National Cancer Institute Developmental Therapeutics Clinic

    Bethesda, Maryland, 20892

  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892

  • UNC Lineberger Comprehensive Cancer Center

    Chapel Hill, North Carolina, 27599

  • Northwestern University

    Chicago, Illinois, 60611

  • University of Cincinnati Cancer Center-UC Medical Center

    Cincinnati, Ohio, 45219

  • Siteman Cancer Center at Saint Peters Hospital

    City of Saint Peters, Missouri, 63376

  • Ohio State University Comprehensive Cancer Center

    Columbus, Ohio, 43210

  • Siteman Cancer Center at West County Hospital

    Creve Coeur, Missouri, 63141

  • City of Hope Comprehensive Cancer Center

    Duarte, California, 91010

  • UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care

    Irvine, California, 92612

  • University of Kentucky/Markey Cancer Center

    Lexington, Kentucky, 40536

  • University of Wisconsin Carbone Cancer Center - Eastpark Medical Center

    Madison, Wisconsin, 53718

  • University of Wisconsin Carbone Cancer Center - University Hospital

    Madison, Wisconsin, 53792

  • NYU Langone Hospital - Long Island

    Mineola, New York, 11501

  • Laura and Isaac Perlmutter Cancer Center at NYU Langone

    New York, New York, 10016

  • NYP/Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center

    New York, New York, 10032

  • University of Oklahoma Health Sciences Center

    Oklahoma City, Oklahoma, 73104

  • UC Irvine Health/Chao Family Comprehensive Cancer Center

    Orange, California, 92868

  • UPMC Hillman Cancer Center

    Pittsburgh, Pennsylvania, 15232

  • Memorial Hospital East

    Shiloh, Illinois, 62269

  • Washington University School of Medicine

    St Louis, Missouri, 63110

  • Siteman Cancer Center-South County

    St Louis, Missouri, 63129

  • Siteman Cancer Center at Christian Hospital

    St Louis, Missouri, 63136

  • University of Cincinnati Cancer Center-West Chester

    West Chester, Ohio, 45069

Other trials in United States

About this study

Official title: A Phase I Clinical Trial of CA-4948 in Combination With Gemcitabine and Nab-Paclitaxel in Metastatic or Unresectable Pancreatic Ductal Carcinoma

This phase I trial tests the safety, side effects, and best dose of emavusertib (CA-4948) in combination with gemcitabine and nab-paclitaxel in treating patients with pancreatic ductal adenocarcinoma that has spread from where it first started (primary site) to other places in the body (metastatic) or cannot be removed by surgery (unresectable). CA-4948 is in a class of medications called kinase inhibitors. It works by blocking the action of abnormal proteins called interleukin-1 receptor-associated kinase 4 (IRAK4) and FMS-like tyrosine kinase 3 (FLT3) that signal cells to multiply. This may help keep cancer cells from growing. The usual approach for patients with pancreatic ductal adenocarcinoma is treatment with chemotherapy drugs gemcitabine and nab-paclitaxel. Gemcitabine is a chemotherapy drug that blocks the cells from making DNA and may kill cancer cells. Paclitaxel is in a class of medications called anti-microtubule agents. It stops cancer cells from growing and dividing and may kill them. Nab-paclitaxel is an albumin-stabilized nanoparticle formulation of paclitaxel which may have fewer side effects and work better than other forms of paclitaxel. Giving CA-4948 in combination with gemcitabine and nab-paclitaxel may shrink or stabilize metastatic or unresectable pancreatic ductal adenocarcinoma.

Read the detailed description

PRIMARY OBJECTIVE:

  1. To assess dose limiting toxicities and determine the recommended phase 2 dose of emavusertib (CA--4948) in combination with chemotherapy in patients with pancreatic ductal adenocarcinoma.

SECONDARY OBJECTIVES:

  1. To observe and record anti-tumor activity. II. To evaluate the safety and tolerability of the combination of CA-4948 and chemotherapy.

III. To determine preliminary signals of efficacy, as measured by objective response rate (ORR), CA-4948 response, progression free survival (PFS), and overall survival (OS).

EXPLORATORY OBJECTIVES:

  1. To evaluate pharmacodynamic effect of CA-4948 in combination with chemotherapy.

II. To evaluate pharmacokinetics of CA-4948 in combination with chemotherapy. III. To explore biomarkers and genomic alterations associated with treatment response.

OUTLINE: This is a dose-escalation study of CA-4948 in combination with fixed-dose gemcitabine and nab-paclitaxel followed by a dose-expansion study.

Patients receive CA-4948 orally (PO) twice daily (BID) on days 1-21 or 1-28 of each cycle, gemcitabine intravenously (IV) over 30-60 minutes on days 1 and 8 or 1, 8, and 15 of each cycle, and nab-paclitaxel IV over 30-40 minutes on days 1 and 8 or 1, 8, and 15 of each cycle. Cycles repeat every 21 or 28 days in the absence of disease progression or unacceptable toxicity. Patients also undergo computed tomography (CT), tumor biopsies, and blood sample collection throughout the trial.

After completion of study treatment, patients are followed every 3 months for 1 year.

Being tested
Biopsy Procedure, Biospecimen Collection, Computed Tomography, Emavusertib, Gemcitabine Hydrochloride
Medical subject headings
Pancreatic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Biopsy ProcedureProcedure or surgery

    Also called Biopsy, BIOPSY_TYPE, Bx

    Undergo tumor biopsies

  • Biospecimen CollectionProcedure or surgery

    Also called Biological Sample Collection, Biospecimen Collected, Sample Collection, Specimen Collection

    Undergo blood sample collection

  • Computed TomographyProcedure or surgery

    Also called CAT, CAT Scan, Computed Axial Tomography, Computerized Axial Tomography

    Undergo a CT scan

  • EmavusertibBiological

    Also called AU 4948, AU-4948, CA 4948, CA-4948

    Given PO

  • Gemcitabine HydrochlorideDrug

    Also called dFdCyd, Difluorodeoxycytidine Hydrochloride, Gemcitabine HCI, Gemzar

    Given IV

  • Nab-paclitaxelDrug

    Also called ABI 007, ABI-007, ABI007, Abraxane

    Given IV

Study groups in NCT05685602
Study groupRoleWhat they receive
Treatment (CA-4948, gemcitabine, nab-paclitaxel)ExperimentalPatients receive CA-4948 PO BID on days 1-21 or 1-28 of each cycle, gemcitabine IV over 30-60 minutes on days 1 and 8 or 1, 8, and 15 of each cycle, and nab-paclitaxel IV over 30-40 minutes on days 1 and 8 or 1, 8, and 15 of each cycle. Cycles repeat every 21 or 28 days in the absence of disease progression or unacceptable toxicity. Patients also undergo CT, tumor biopsies, and blood sample collection throughout the trial.
Receives: Procedure: Biopsy Procedure; Procedure: Biospecimen Collection; Procedure: Computed Tomography; Biological: Emavusertib; Drug: Gemcitabine Hydrochloride; Drug: Nab-paclitaxel

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Dose limiting toxicity rate

    Done to determine the maximum tolerated dose for the combination of CA-4948 and gemcitabine/nab-paclitaxel chemotherapy backbone. Data analysis of the study will be descriptive in nature. Demographic and clinical characteristics of the sample, toxicity by severity, as well as loss to follow-up will be summarized using descriptive statistics. Safety endpoints will be listed for each dose level.

    Measured: Up to 1 year

Secondary outcomes (4)

  1. Incidence of adverse events

    Tabulations of adverse events will be produced by severity and by relationship to study drug.

    Measured: Up to 1 year

  2. Overall response rate (ORR)

    For efficacy data in the expansion cohort, ORR and its 95% confidence interval will be calculated.

    Measured: Up to 1 year

  3. Progression-free survival (PFS)

    Will be described using Kaplan-Meier product limit methods.

    Measured: From start of study treatment to time of progression or death, whichever occurs first, assessed up to 1 year

  4. Overall survival (OS)

    Will be described using Kaplan-Meier product limit methods.

    Measured: Up to 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Jan 2023
  2. Study start12 Jun 2023
  3. Primary completion30 Apr 2027 (estimated)
  4. Study completion30 Apr 2027 (estimated)

Why it stopped: Drug Supply Issues

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
43 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05685602
Sponsor's protocol ID
NCI-2022-08984
Other IDs
NCI-2022-08984, 202304010, 10522, 10522, UM1CA186689
Status last verified
Sep 2026
First submitted
13 Jan 2023
Last updated
3 Nov 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: "NCI is committed to sharing data in accordance with NIH policy. For more details on how clinical trial data is shared, access the link to the NIH data sharing policy page."

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Biopsy Procedure, Biospecimen Collection and Computed Tomography in people with Metastatic Pancreatic Ductal Adenocarcinoma and Stage III Pancreatic Cancer AJCC v8, run by National Cancer Institute (NCI) at 26 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 21 inclusion and 14 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: paused, as of the sponsor's last update on 3 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 26 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Dose limiting toxicity rate (time frame: Up to 1 year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05685602.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Nov 2026.

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