Gemcitabine, Nab-Paclitaxel, and Bosentan for the Treatment of Unresectable Pancreatic Cancer

Stage IV Pancreatic Cancer AJCC v8 Clinical Trial

Official title:

A Phase 1 Study of Gemcitabine, Nab-Paclitaxel, and Bosentan in Patients With Unresectable Pancreatic Cancer

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT04158635
• Other study ID #: 21314
• Secondary ID: NCI-2021-0660919
• Status: Recruiting
• Phase: Phase 1
• Start date: September 1, 2021
• Est. completion date: January 27, 2026

Study information

• Verified date: May 2024
• Source: City of Hope Medical Center
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This phase I trial studies the side effects and best dose of bosentan and how well it works when given together with gemcitabine and nab-paclitaxel for the treatment of pancreatic cancer that cannot be removed by surgery (unresectable). Bosentan may block the hormone endothelin and prevent the growth and spread of pancreatic cancer. Drugs used in chemotherapy, such as gemcitabine and nab-paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving bosentan with chemotherapy (gemcitabine and nab-paclitaxel) may work better in treating patients with pancreatic cancer compared to chemotherapy alone.

Description:

PRIMARY OBJECTIVE:

I. To assess the safety, toxicity and feasibility of administering bosentan with nab-paclitaxel and gemcitabine.

SECONDARY OBJECTIVES:

I. To assess the response rate associated with this combination therapy in first line pancreatic cancer patients.

II. To assess the progression-free survival and overall survival of all patients who start protocol therapy, and describe the outcomes based on measures of compliance during the lead-in week, and compliance with supplement during chemotherapy.

EXPLORATORY OBJECTIVES:

I. To determine the impact of bosentan on the mass transport in the tumor (surrogate of alterations in tumor stroma and blood flow). (Pharmacodynamic Investigations) II. To describe the pharmacokinetic profile of nab-paclitaxel and bosentan and compare to historic single-agent profile. (Pharmacokinetic Investigations) III. To explore the association between hepatotoxicity to study agents and organic anion-transporting polypeptide (OATP) polymorphisms. (Pharmacogenomic Investigations) IV. To explore biomarkers on pre-treatment biopsy samples and peripheral blood samples for correlations of predictive of response.

V. To describe quality of life utilizing the Functional Assessment of Cancer Therapy: General (FACT-G) questionnaire.

OUTLINE:

Patients receive bosentan orally (PO) twice daily (BID) on days -7 to 21 or 8-21 of cycle 1 and days 1-21 of subsequent cycles. Patients also receive nab-paclitaxel intravenously (IV) over 30 minutes and gemcitabine IV over 30 minutes on days 1, 8, and 15. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up at 30 days. Patients who complete study treatment without disease progression are followed up every 2 months until disease progression and then biannually thereafter. Patients who complete study treatment with disease progression are followed up biannually.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 21
• Est. completion date: January 27, 2026
• Est. primary completion date: January 27, 2026
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Documented informed consent by the participant

• Willingness to permit study team to obtain and use archival tissue, if already existing

• Eastern Cooperative Oncology Group (ECOG) performance status =< 2

• Life expectancy of > 3 months

• Histologic diagnosis of pancreatic carcinoma

• Unresectable disease

• Patients must be a candidate to receive one of the following chemotherapy combinations as determined by the treating physician:

• Arm A2: gemcitabine plus nab-paclitaxel given every 2 weeks (e.g. Every other week) (arm A1 is closed per this amendment)

• Arm B: mFOLFIRINOX given every 2 weeks

• Agreement by females and males of childbearing potential to use an adequate method of birth control (hormonal contraception is inadequate) or abstain from heterosexual activity for the course of the study through 30 days after the last dose of study medication

• Childbearing potential defined as not being surgically sterilized (men and women) or have not been free from menses for > 1 year (women only)

• Absolute neutrophil count (ANC) >= 1,500/mm^3 (performed within 14 days prior to day 1 of bosentan)

• Platelets >= 100,000/mm^3 (performed within 14 days prior to day 1 of bosentan)

• Total serum bilirubin =< 1.5 x upper limit of normal (ULN) (performed within 14 days prior to day 1 of bosentan)

• Aspartate aminotransferase (AST) =< 1.5 x ULN or =< 3 x ULN with liver metastases (performed within 14 days prior to day 1 of bosentan)

• Alanine aminotransferase (ALT) =< 1.5 x ULN or =< 3 x ULN with liver metastases (performed within 14 days prior to day 1 of bosentan)

• Creatinine clearance of >= 60 mL/min per 24 hour urine or the Cockcroft-Gault (performed within 14 days prior to day 1 of bosentan)

• Women of childbearing potential (WOCBP): negative urine or serum pregnancy test

• If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required

Exclusion Criteria:

• Dietary/herbal supplements

• Other investigational products

• Warfarin

• Cyclosporine A or rifampicin

• Glyburide; other hypoglycemic agents may be permitted

• Current or planned use of agents contraindicated for use with strong CYP3A4 inducers

• Strong inhibitors or inducers of CYP2C9

• Strong inhibitors or inducers of CYP3A

• Agent or agents that moderately inhibit both CYP2C9 and CYP3A (via a single concomitant agent, or co-administration of concomitant agents)

• Current or history of >= grade 2 peripheral neuropathy

• Issues with tolerating oral medication (e.g. inability to swallow pills, malabsorption issues, ongoing nausea or vomiting)

• Women who are or are planning to become pregnant or breastfeed

• Known allergy to eggs or any of the components within the study agents and/or their excipients

• No other prior malignancy is allowed except for the following: adequately treated basal cell or squamous cell skin cancer, in situ cervical cancer, adequately treated stage I or II cancer from which the patient is currently in complete remission, or any other cancer from which the patient has been disease free for three years

• Intercurrent or historic medical condition that increases subject risk in the opinion of the investigator. Eligibility may be revisited for intercurrent medical conditions once resolution/recovery is deemed adequate by the investigator (e.g. recovery from major surgery, completion of treatment for severe infection)

• Prospective participants who, in the opinion of the investigator, may not be able to comply with all study procedures (including compliance issues related to feasibility/logistics)

Related Conditions & MeSH terms

• Pancreatic Neoplasms
• Stage III Pancreatic Cancer AJCC v8
• Stage IV Pancreatic Cancer AJCC v8
• Unresectable Pancreatic Carcinoma

Intervention

Drug:
• Bosentan
Given PO
• Gemcitabine
Given IV
• Nab-paclitaxel
Given IV

Other:
• Quality-of-Life Assessment
Ancillary studies
• Questionnaire Administration
Ancillary studies

Locations

Country	Name	City	State
United States	City of Hope Medical Center	Duarte	California

Sponsors (2)

Lead Sponsor	Collaborator
City of Hope Medical Center	National Cancer Institute (NCI)

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	Temporal impact of bosentan therapy on tumor vs. normal pancreatic tissue perfusion profile (tumor stroma and blood flow)		Up to 2 years
Other	Levels of nab-paclitaxel, bosentan and active plasma metabolite Ro 48-5033	Will be quantitated in the peripheral blood.	Up to 2 years
Other	Analysis of loci that encode organic anion transporting polypeptides (OATP) in participants who experience severe hepatotoxicity, increased during protocol therapy		Up to 2 years
Other	Quantification of the number of circulating tumor cells and temporal proteomic/micro ribonucleic acid (miRNA) profile will assess response to therapy		Up to 2 years
Other	Histopathology/ structural assessment and quantification of the miRNA profile	Will allow the identification of prognostic biomarkers.	Up to 2 years
Other	Quality of life assessment	Assesses using Functional Assessment of Cancer Therapy: General (FACT-G) questionnaire.	Up to 2 years
Primary	Incidence of adverse events	Will be recorded using the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version (v) 4.0.	Up to 30 days after last dose of protocol therapy
Primary	Dose limiting toxicities (DLTs)	Toxicities will be graded according to NCI CTCAE v 4.0. DLT's apply only to bosentan-only single stage AND cycle 1 and should be attributable to the treatment.	Up to 21 days (Cycle 1)
Primary	Compliance	Number of bosentan tablets and bottles returned will be reconciled with the patient diary.	During the first week
Secondary	Progression-free survival (PFS)	Will be evaluated using the Kaplan-Meier methods, both as a single group and by disease classification (metastatic versus [vs.] advanced unresectable). Response will also be examined by disease classification as part of a secondary analysis.	Time to disease progression/ relapse or death as a result of any cause, assessed up to 2 years
Secondary	Overall survival (OS)	Will be evaluated using the Kaplan-Meier methods, both as a single group and by disease classification (metastatic vs. advanced unresectable). Response will also be examined by disease classification as part of a secondary analysis.	Time to death as a result of any cause, assessed up to 2 years
Secondary	Time to treatment failure (TTF)	Will be evaluated using the Kaplan-Meier methods, both as a single group and by disease classification (metastatic vs. advanced unresectable). Response will also be examined by disease classification as part of a secondary analysis.	Time to treatment termination for any reason (progression, toxicity, death, patient preference), assessed up to 2 years