Study of CBP501/Cisplatin/Nivolumab Combinations in Advanced Pancreatic Cancer

Sponsor

CanBas Co. Ltd. (Industry)

Overall Status

Active, not recruiting

CT.gov ID

NCT04953962

Collaborator

(none)

Enrollment

Locations

Arms

11.4

Anticipated Duration (Months)

1.8

Patients Per Site

0.2

Patients Per Site Per Month

Study Details

Study Description

Brief Summary

Condition or Disease	Intervention/Treatment	Phase
Pancreatic Cancer Stage IV	Drug: CBP501 (16) Drug: CBP501 (25) Drug: Cisplatin Drug: Nivolumab	Phase 2

Detailed Description

Multicenter, randomized, open-label, parallel group phase 2 study to assess the efficacy and tolerance of four combinations of CBP501, cisplatin, and nivolumab administered once every 21 days to patients with stage IV exocrine pancreatic cancer and WBC < 10,000/mm3 at screening. Patients will be randomized 1:1:1:1 to the following four treatment groups, with randomization stratified by ECOG PS (0 vs 1) and liver metastasis (present vs absent):

CBP501 25 mg/m2 + cisplatin 60 mg/m2 + nivolumab 240 mg
CBP501 16 mg/m2 + cisplatin 60 mg/m2 + nivolumab 240 mg
CBP501 25 mg/m2 + cisplatin 60 mg/m2
Cisplatin 60 mg/m2 + nivolumab 240 mg No more than 4 cycles of combination therapy may be administered but patients who remain progression-free after 4 cycles may receive up to 6 additional cycle of single-agent nivolumab.

A Fleming two-stage design will be used. For each study arm, the null hypothesis that the true percentage of patients progression-free at 3 months is 10% will be tested against a one-sided alternative. In the first stage, 9 patients will be accrued to each study arm. In the first stage, if there are 1 or fewer patient progression-free at 3 months the study will be stopped for futility and if there are 4 or more patients progression-free at 3 months the study will stopped and the null hypothesis rejected. Otherwise, 14 additional patients will be accrued to the study arm for a total of 23. The null hypothesis will be rejected if 6 or more of 23 patients are progression-free at 3 months. This design yields a type I error rate of 2.5% and power of 80% when the true percentage of patients progression-free at 3 months is 35%.

Study Design

Study Type:

Interventional

Anticipated Enrollment :

36 participants

Allocation:

Randomized

Intervention Model:

Parallel Assignment

Masking:

None (Open Label)

Primary Purpose:

Treatment

Official Title:

Multicenter, Randomized, Parallel Group, Phase 2 to Establish the Efficacy and Safety of Combinations of CBP501, Cisplatin, and Nivolumab for ≥3rd Line Treatment of Patients With Exocrine Pancreatic Cancer and WBC <10,000/mm3 at Screening

Actual Study Start Date :

Dec 18, 2021

Anticipated Primary Completion Date :

Dec 1, 2022

Anticipated Study Completion Date :

Dec 1, 2022

Arms and Interventions

Arm	Intervention/Treatment
Experimental: Arm 1: CBP501 (25) + Cisplatin + Nivolumab CBP501 25mg/m2 and Cisplatin 60mg/m2 will be administered simultaneously. Nivolumab 240mg will be administered following the completion of CBP501 and cisplatin infusions.	Drug: CBP501 (25) 25 mg/m2 Other Names: CBP501 Drug: Cisplatin 60mg/m2 Other Names: CDDP Drug: Nivolumab 240 mg Other Names: Opdivo
Experimental: Arm 2: CBP501 (16) + Cisplatin + Nivolumab CBP501 16mg/m2 and Cisplatin 60mg/m2 will be administered simultaneously. Nivolumab 240mg will be administered following the completion of CBP501 and cisplatin infusions.	Drug: CBP501 (16) 16 mg/m2 Other Names: CBP501 Drug: Cisplatin 60mg/m2 Other Names: CDDP Drug: Nivolumab 240 mg Other Names: Opdivo
Experimental: Arm 3: CBP501 (25) + Cisplatin CBP501 25mg/m2 and Cisplatin 60mg/m2 will be administered simultaneously.	Drug: CBP501 (25) 25 mg/m2 Other Names: CBP501 Drug: Cisplatin 60mg/m2 Other Names: CDDP
Experimental: Arm 4: Cisplatin + Nivolumab Cisplatin 60mg/m2 will be administered as infusion and then Nivolumab 240mg will be administered.	Drug: Cisplatin 60mg/m2 Other Names: CDDP Drug: Nivolumab 240 mg Other Names: Opdivo

Outcome Measures

Primary Outcome Measures

Three-month progression free survival rate (3M PFSR) [3 months after treatment]
Tumor assessment by RECIST v.1.1 criteria will be performed at screening, every 8 weeks starting after Cycle 1 Day 1, at the End-of-Treatment visit, and every 3 months after the End-of-Treatment visit until disease progression is observed.

Secondary Outcome Measures

Safety profiles of the combinations of CBP501, cisplatin, and nivolumab administered once every 21 days [One year]
Safety will be assessed throughout the study through clinical and laboratory safety evaluations. These include physical examinations, vital sign measurements, 12-lead ECGs, laboratory safety tests (hematology, INR, serum chemistry, serum cardiac markers), and clinical adverse experience monitoring. Adverse events will be evaluated at each visit throughout the study and assigned a grade, defined by NCI-CTCAE version 5.0 criteria, and relationship to study treatment (unrelated, related).
Progression-free survival (PFS) [one year]
Tumor assessment by RECIST v.1.1 criteria will be performed at screening, every 8 weeks starting after Cycle 1 Day 1, at the End-of-Treatment visit, and every 3 months after the End-of-Treatment visit until disease progression is observed.
Confirmed and timepoint objective response rates (cORR/ORR) [one year]
Tumor assessment by RECIST v.1.1 criteria will be performed at screening, every 8 weeks starting after Cycle 1 Day 1, at the End-of-Treatment visit, and every 3 months after the End-of-Treatment visit until disease progression is observed.
Duration of responses (DoR) [one year]
Tumor assessment by RECIST v.1.1 criteria will be performed at screening, every 8 weeks starting after Cycle 1 Day 1, at the End-of-Treatment visit, and every 3 months after the End-of-Treatment visit until disease progression is observed.
disease control rate (DCR: CR + PR + SD ≥12 weeks) [one year]
Tumor assessment by RECIST v.1.1 criteria will be performed at screening, every 8 weeks starting after Cycle 1 Day 1, at the End-of-Treatment visit, and every 3 months after the End-of-Treatment visit until disease progression is observed.
Overall survival (OS) [one year]
Tumor assessment by RECIST v.1.1 criteria will be performed at screening, every 8 weeks starting after Cycle 1 Day 1, at the End-of-Treatment visit, and every 3 months after the End-of-Treatment visit until disease progression is observed.

Eligibility Criteria

Criteria

Ages Eligible for Study:

18 Years and Older

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

Inclusion Criteria:

Signed informed consent obtained prior to initiation of any study-specific procedures and treatment;
Patients with pathologically confirmed stage IV exocrine pancreatic cancer who have received at least two lines of systemic therapy for metastatic disease. Up to 10 of prior lines of systemic therapy (including prior cisplatin), chemoradiotherapy, radiotherapy or investigational agents the patient has received are allowed in order to be eligible, as long as all eligibility criteria are met, with the exception that a patient must not have received more than two prior lines incorporating anti-PD-1, anti-PD-L1, or anti-CTLA-4 immune checkpoint blockade.

Patients who have received prior anti-PD-1, anti-PD-L1, or anti-CTLA-4 immune checkpoint blockade therapy must have tolerated therapy with no evidence of grade 4 toxicity or an immune-related event (any grade) that required treatment discontinuation. Patients who experienced an endocrine related dysfunction are eligible, provided they are on stable hormone replacement therapy;

Male or female patients aged ≥ 18 years at time of informed consent;
ECOG Performance Status (PS) 0-1;
Life expectancy > 3 months;
Previous anticancer treatment must be discontinued at least 3 weeks prior to the initiation of study treatment (with the exception of 6 weeks for mitomycin C; 6 weeks for anti-androgen therapy if discontinued prior to treatment initiation, and 8 weeks for bicalutamide);
Adequate bone marrow reserve, cardiac, liver, renal and metabolic function:

white blood cell count (WBC) <10,000/mm3;
absolute neutrophil count (ANC) ≥ 1,500/mm3;
platelet count ≥ 100,000/mm3;
hemoglobin ≥ 9 g/dL;
creatinine phosphokinase isozymes CPK-MB and CPK-MM ≤ upper limit of normal (ULN);
serum troponin T levels within normal limits;
bilirubin ≤ 1.5 x ULN;
alanine aminotransferase (ALT, SGPT) and aspartate aminotransferase (AST, SGOT) ≤ 2.5 x ULN (≤ 5 x ULN if liver metastases are present);
INR ≤ 1.5 x ULN;
serum creatinine ≤ ULN or creatinine clearance ≥ 60 mL/min (by Cockcroft & Gault formula or alternate calculation by 24hr urine collection). Patients with serum creatinine ≤ ULN and clearance between 45 to 59 mL/min should reduce cisplatin dose by 50%;
serum potassium ≥ 3.0 and ≤ 5.5 mmol/L;
serum calcium ≥ 8.0 and ≤ 11.5 mg/dL (≥ 2.0 and ≤ 2.9 mmol/L);
serum magnesium ≥ 1.2 and ≤ 3.0 mg/dL (≥ 0.5 and ≤ 1.23 mmol/L);

Female patients of child-bearing potential must have a negative serum pregnancy test and use at least one form of contraception as approved by the investigator for 4 weeks prior to initiating study treatment and for 14 months after the last dose of study drug . For the purposes of this study, child-bearing potential is defined as "all female patients unless they are post-menopausal for at least 3 years or surgically sterile;
Male patients must use a form of barrier contraception approved by the investigator during the study and for 14 months after the last dose of study drug.
Ability to cooperate with study treatment and follow-up.

Exclusion Criteria:

Radiation therapy to >30% of bone marrow prior to study entry;
Prior chemotherapy with nitrosoureas, prior mitomycin C cumulative dose ≥ 25 mg/m2, prior bone marrow transplant, or prior intensive chemotherapy with stem cell support;
Presence of any serious concomitant systemic disorders incompatible with the study in the opinion of the investigator (e.g., uncontrolled congestive heart failure, active infection, etc.);
Any previous history of another malignancy (other than cured basal cell or squamous cell carcinoma of the skin or cured in-situ carcinoma) within 5 years of study entry;
Presence of any significant central nervous system (CNS) or psychiatric disorder(s) that would hamper the patient's compliance;
Evidence of peripheral neuropathy grade ≥ 2;
Treatment with any other investigational agent or participation in another clinical trial within 28 days prior to study entry;
Pregnant or breast-feeding patients or any patient with child-bearing potential not using adequate contraception;
Known HIV, HBV, or HCV infection (excluding cured HBV and/or cured HCV infection);
Active CNS metastases; however, patients with CNS metastases will be eligible if they have been treated and are stable without symptoms for 4 weeks after completion of treatment, with image documentation required, and must be off steroids;
Who require chronic systemic steroid therapy or on any other form of immunosuppressive medication;
Has received a live-virus vaccination within 30 days of planned treatment start;
With known risk factors for bowel perforation, i.e., history of diverticulitis, intra-abdominal abscess, intestinal obstruction, or abdominal carcinomatosis;
Has an active autoimmune disease or a documented history of autoimmune disease;
Has a history pneumonitis or interstitial lung disease.
Patients who were permanently discontinued from prior immunotherapy due to immune-related adverse events.
Patients who are platinum and PD-1/PD-L1 inhibitor double refractory.

Contacts and Locations

Locations

	Site	City	State	Country	Postal Code
1	Arizona Oncology Associates, PC-HOPE	Tucson	Arizona	United States	85704
2	Ochsner Clinic Foundation	Los Angeles	California	United States	70121
3	University of Colorado Cancer Center	Aurora	Colorado	United States	80045
4	Medical Oncology Hematology Consultants, PA	Newark	Delaware	United States	19713
5	Illinois Cancer Specialists	Arlington Heights	Illinois	United States	60005
6	University of Michigan hospital	Ann Arbor	Michigan	United States	48109
7	Minnesota oncology Hematology, P.A.	Minneapolis	Minnesota	United States	55404
8	James D Sanchez	Henderson	Nevada	United States	89052
9	Oncology Hematology Care, Inc.	Cincinnati	Ohio	United States	45245
10	Texas Oncology-Austin Midtown	Austin	Texas	United States	78705
11	Mary Crowley Medical Research Center	Dallas	Texas	United States	75230
12	Texas Oncology-Baylor Charles A. Sammons Cancer Center	Dallas	Texas	United States	75246
13	Texas Oncology-McAllen South Second Street	McAllen	Texas	United States	78503
14	Texas Oncology- McKinney	McKinney	Texas	United States	75071
15	Texas Oncology-San Antonio Northeast	San Antonio	Texas	United States	78217
16	Baylor Scott & White Medical Center	Temple	Texas	United States	76508
17	Texas Oncology-Northeast Texas	Tyler	Texas	United States	75702
18	Virginia Cancer Specialists, PC	Arrington	Virginia	United States	22205
19	Northwest Medical Specialties	Tacoma	Washington	United States	98405
20	Northwest Cancer Specialists, P.C.	Vancouver	Washington	United States	98684

Sponsors and Collaborators

CanBas Co. Ltd.

Investigators

None specified.

Study Documents (Full-Text)

None provided.

More Information

Publications

Responsible Party:

CanBas Co. Ltd.

ClinicalTrials.gov Identifier:

NCT04953962

Other Study ID Numbers:

CBP21-01

First Posted:

Jul 8, 2021

Last Update Posted:

Aug 18, 2022

Last Verified:

Dec 1, 2021

Individual Participant Data (IPD) Sharing Statement:

Plan to Share IPD:

Studies a U.S. FDA-regulated Drug Product:

Yes

Studies a U.S. FDA-regulated Device Product:

Additional relevant MeSH terms:

Pancreatic Neoplasms

Nivolumab

Study Results

No Results Posted as of Aug 18, 2022