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Cancer of PancreasEarly Phase 1NCT04123574

A Pilot Study of BXCL701 in Patients With Pancreatic Cancer

A Early Phase 1 study testing Talabostat Mesylate in people with Cancer of Pancreas and Cancer of the Pancreas, run by BioXcel Therapeutics Inc at 2 sites in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

A study to assess the biochemical and immunomodulatory effects of BXCL701 in pancreatic cancer. Read more about this study

Who is it for?
Ages 18 to 75 years
What is being tested?
Talabostat Mesylate
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
2 sitesUnited States
Study dates
15 Oct 2019to 6 Dec 2021
Phase
Early 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 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Has untreated (eg, no prior investigational therapies, chemotherapy, or radiation therapy), locally advanced or metastatic adenocarcinoma of the head, neck, uncinate process, or tail of the pancreas with a local or metastatic lesion that is amenable to biopsy before and after treatment. (Whenever possible, the before and after treatment biopsies should be from the same lesion.)
  • Is able and willing to undergo tumor biopsy before and after treatment. (A pretreatment biopsy may not be needed if tissue is available from a biopsy conducted within 28 days prior to screening that is adequate for the study assessments.)
  • Has Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1.
  • Is 18 to 75 years of age, inclusive
  • Has adequate organ function within 28 days of treatment initiation
  • For participants with exposure to prior agents associated with decreased left ventricular ejection fraction (LVEF) (e.g. anthracyclines), or if clinically warranted, a documented LVEF > 45% using a standard echocardiogram (ECHO) or multigated acquisition (MUGA) scan test at Screening or within 60 days prior to Cycle 1 Day 1. ECHO or MUGA testing for other participants without relevant medical history or clinical symptoms can be performed if feasible.
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  • Has oxygen saturation ≥ 92% on room air.
  • Is able to take an oral medication.
  • Has signed an Informed Consent Form (ICF) prior to the initiation of any study-specific procedures or treatment.
  • Is willing and able to adhere to the study visit schedule and other protocol requirements.
  • Women of childbearing potential (WOCBP) must have a negative pregnancy test at baseline. A woman must be menopausal for at least 12 months before she is considered not to be of reproductive potential.
  • Male and female patients of reproductive potential must agree to use an effective contraceptive method during participation in this study and for 6 months following the study.

Who cannot join

  • A female who is pregnant or breast-feeding.
  • Has other concurrent malignancies except for basal and squamous cell cancers of the skin and in-situ cervical cancer.
  • Has uncontrolled epilepsy, central nervous system diseases, or a history of mental disorder that is severe enough to hinder the ability of the patient to provide informed consent or that may influence the patient's compliance with the protocol in the judgments of the investigator.
  • Has an upper gastrointestinal obstruction, abnormal physiological function, or malabsorption syndrome that may affect the absorption of study medication.
  • Has required chronic corticosteroids, defined as > 10 mg/day of prednisone or equivalent, or immunosuppressive therapy within the past 3 months. Patient requires treatment with DPP4 inhibitors (e.g. gliptins).
  • Has a premalignant hematologic disorder, eg, myelodysplastic syndrome.
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  • Has a severe organ dysfunction or disease that might prevent completion of the treatment regimen, eg, cardiopulmonary diseases (New York Heart Association [NYHA] ≥ Class III, arrhythmia Lown III/IV, global respiratory insufficiency); ascites; acute pancreatitis; bleeding diathesis, coagulopathy, or need for full dose anticoagulation.
  • Has a chronic infectious disease, especially immune deficiency syndromes, eg, human immunodeficiency virus (HIV) infection, active tuberculosis within 12 months prior to potential study participation or suspected/active SARS-CoV-2 (Covid-19) infection.
  • Has a history of severe neurologic disorders, eg, cerebrovascular ischemia within the past year.
  • Has a history of prior deep venous thrombosis or pulmonary embolism within the past year.
  • Has serious medical, psychological, familial, sociological, or geographical conditions or circumstances potentially hampering compliance with the study protocol and follow-up.
  • QT interval corrected for heart rate using Bazett's formula (QTcB) > 440 msec at Screening.
  • Patients with history of symptomatic orthostatic hypotension within 3 months prior to enrollment. Orthostatic hypotension is defined as a drop in systolic blood pressure (BP) of ≥ 20 mmHg or diastolic BP of ≥ 10 mmHg with assumption of an upright posture

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • BioXcel Clinical Research Site

    Boston, Massachusetts, 02215

  • BioXcel Clinical Research Site

    New York, New York, 10021

Other trials in United States

About this study

Official title: A Pilot Proof of Mechanism Study of BXCL701, a Small Molecule Inhibitor of Dipeptidyl Peptidases (DPPs), in Patients With Pancreatic Cancer

A study to assess the biochemical and immunomodulatory effects of BXCL701 in pancreatic cancer.

Read the detailed description

This is a Phase 0 or "window of opportunity" study where paired specimen analysis, taken before and after drug exposure, will permit the evaluation of target modulation and assessment of immune effector cell infiltration into the tumor and the generation of relevant immune cytokines.

In this study, BXCL701 will be administered at a dose of 0.3 mg, twice daily for a total daily dose of 0.6mg (the previously defined maximum tolerated dose [MTD] of the drug), to all patients for a short period of 14 days. This study is designed to assess the biochemical and immunomodulatory effects of BXCL701 in pancreatic cancer.

Being tested
Talabostat Mesylate
Keywords
Pancreas, Cancer, Neoplasms, Pancreatic
Medical subject headings
Pancreatic Neoplasms, Neoplasms

What participants receive

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

  • Talabostat MesylateDrug

    Also called BXCL701

    BXCL701 tablets dosage strengths include 0.2mg and 0.05mg tablets for oral administration.

    Patients are to self-administer the prescribed number of BXCL701 tablets for a total daily dose of 0.6 mg. BXCL701 should not be taken on an empty stomach.

    Daily blood pressure monitoring will be performed during the dosing period. Administration of at least 1L of intravenous (IV) fluids is required on Day 1.

    On days when pharmacokinetic (PK) assessments are being performed, BXCL701 should be administered at the study center and should be administered at (approximately) the same time of day on each treatment day.

Study groups in NCT04123574
Study groupRoleWhat they receive
Single ArmExperimentalBXCL701 will be administered for one week at a dose of 0.2 mg, twice daily (BID). If BXCL701 is well-tolerated after the first week of treatment, the dose will be increased to 0.3mg BID for a total daily dose of 0.6mg to all patients for the second week of treatment.
Receives: Drug: Talabostat Mesylate

What is being measured

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

  1. To characterize the quantitative and qualitative effects of BXCL701 on relevant immune effector cytokines and various immunological effector cells that are consistent with its known mechanism of action.

    To measure how BXCL701 effects the tumor by measuring the rate of tumor cell death or the reduction of tumor cell growth. This will be measured by scans and blood work.

    Measured: Up to 37 days post treatment

Secondary outcomes (3)
  1. Evaluate the tolerability of exposure to BXCL701: National Cancer Institute Common Terminology Criteria

    assessed using the National Cancer Institute Common Terminology Criteria for Adverse Events

    Measured: Up to 37 days post treatment

  2. Evaluate the effect of exposure to BCXL701 on cancer cell death

    Measure the rate of cancer cell death measured by histological staining methods of post-treatment biopsied tissue.

    Measured: Up to 37days post treatment

  3. Genomic analysis before and after treatment.

    Genomic analysis is the identification, measurement or comparison of genomic features such as DNA sequence, structural variation, gene expression, or regulatory and functional element annotation at a genomic scale.

    Measured: Up to 37 days post treatment

Timeline

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

  1. First posted11 Oct 2019
  2. Study start15 Oct 2019 (estimated)
  3. Primary completion6 Dec 2021 (estimated)
  4. Study completion6 Dec 2021 (estimated)

Why it stopped: No longer relevant to field

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
Early Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04123574
Sponsor's protocol ID
BXCL701-001
Status last verified
Aug 2026
First submitted
30 Apr 2019
Last updated
11 Aug 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Talabostat Mesylate in people with Cancer of Pancreas and Cancer of the Pancreas, run by BioXcel Therapeutics Inc at 2 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 12 inclusion and 13 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: withdrawn, as of the sponsor's last update on 11 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 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?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

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

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

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?

To characterize the quantitative and qualitative effects of BXCL701 on relevant immune effector cytokines and various immunological effector cells that are consistent with its known mechanism of action. (time frame: Up to 37 days post treatment). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 11 Aug 2026.

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