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BP-C1 in Short-term Treatment of Patients With Metastatic Breast Cancer

Phase 2
Completed
Conditions
Metastatic Breast Cancer
Stage IV Breast Cancer
Interventions
Drug: Placebo
Registration Number
NCT02783794
Lead Sponsor
Meabco A/S
Brief Summary

The purpose of this study is to determine whether BP-C1 is effective in the treatment of metastatic breast cancer patients who had previously received at least three lines of chemotherapy.

Detailed Description

BP-C1, solution for injection 0.05%, is currently being developed for treatment of patients with metastatic breast cancer with palliative intent. Active substance of the product, which is a novel platinum-containing anticancer agent developed for intramuscular administration, is a cis-diammineplatinum(II) complexed with a polymer containing benzene polycarboxylic acids derived from lignin. The amphiphilic characteristics of the polymer have resulted in a product with clear and significantly altered and improved properties compared to other platinum analogues, e.g. cisplatin, carboplatin and oxaliplatin.

BP-C1 preserves antitumour activity of its predecessors (e.g. cisplatin and carboplatin), additionally offering the following advantages that ensure favourable outcome of treatment of metastatic breast cancer patients:

* injectable solution (intramuscular) does not cause injection site reactions;

* can be administered at home by a nurse or a patient;

* has an improved pharmacokinetic profile;

* demonstrates efficacy comparable to cisplatin and much higher than carboplatin (in-vitro; in-vivo data);

* exerts an additional immunomodulatory activity.

This study is a randomised, double-blind, placebo-controlled, multicentre, phase IIb study. The eligible patients will be allocated (1:1) to either BP-C1 arm or Placebo arm and treated once daily for 32 days. The patients allocated to Placebo arm will cross over to BP-C1 treatment for 32 days when progression of the cancer will be documented and latest after 32-day treatment with Placebo. After 32-day treatment with BP-C1 the patients are invited to participate in the study BMC2011-02 to continue open-label BP-C1 treatment.

Recruitment & Eligibility

Status
COMPLETED
Sex
Female
Target Recruitment
36
Inclusion Criteria

Female patients with histologically verified metastatic breast cancer (stage IV) with measurable metastases, between 18 and 80 years of age, who had undergone at least three lines of chemotherapy and had an expected survival time of at least 3 months.

Exclusion criteria:

Patients fulfilling at least one of the following criteria will be excluded from participation in the study:

  • Abnormal liver function classified as total bilirubin >34 μmol/L or ALAT > 3 times of the upper limit of normal (ULN). In case of metastases in the liver, the ALAT limit for exclusion is set to 5хULN.
  • Abnormal kidney function defined by serum creatinine >120 μmol/L.
  • Abnormal coagulation capacity defined by the relative arbitrary concentration of coagulation factors 2,7,10; INR >1.5.
  • Verified metastases to the brain.
  • Synchronous cancer except for non-melanoma skin cancer and early stage of cervical cancer.
  • Abnormal hematology status defined by hemoglobin < 9.0 g/dL, platelet count < 100,000/mm^3 or leucocytes < 3 x 10^9/L.
  • Clinically significant abnormal ECG.
  • Karnofsky performance status score <60%.
  • Pregnant or breast feeding women.
  • Women of fertile age who do not want to be tested for possible pregnancy.
  • Fertile female who do not want to use safe protection against pregnancy, starting one month before the start of the study treatment and lasting at least six weeks after.
  • Uncontrolled bacterial, viral, fungal or parasite infection.
  • Under systemic treatment with corticosteroids or other immunosuppressive drugs in the last 21 days before start of the trial treatment.
  • Participating in another clinical trial with pharmaceuticals in the last six weeks before start of this trial treatment.
  • Not able to understand information.
  • Not willing or not able to give written consent to participate in the study.
Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
PlaceboPlaceboPatients randomized to Placebo arm will be treated for 32 consecutive days. Thereafter the patients will cross over to 32-day treatment with BP-C1. Patients who respond to treatment and do not experience untolerated toxicity are invited to participate in the BMC2011-02 study, where they will be offered to continue treatment with BP-C1.
BP-C1BP-C1Patients randomized to BP-C1 arm will be treated for 32 consecutive days. Patients who respond to treatment and do not experience untolerated toxicity are invited to participate in the BMC2011-02 study, where they will be offered to continue treatment with BP-C1.
Primary Outcome Measures
NameTimeMethod
Change (%) in the sum of diameters of target lesionsbaseline to Day 32 of treatment

Diameter of target lesions will be measured by computer tomography (CT) with contrasting using Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.

Secondary Outcome Measures
NameTimeMethod
Number of non-target lesionsbaseline to Day 32 of treatment

Number of non-target lesions per each patient will be evaluated by CT with contrasting. Change in number of non-target lesions from baseline to Day 32 of treatment will be presented in shift tables.

Treatment responsebaseline to Day 32 of treatment

In accordance with RECIST v1.1 the treatment response will be classified as 'complete response', 'partial response', 'stable disease' or 'progressive disease':

Complete response (CR): disappearance of all target lesions. Partial response (PR): at least 30% decrease in the sum of longest diameters of target lesions, taking as reference the baseline sum of diameters.

Progressive disease (PD): at least 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum might also demonstrate an absolute increase of at least 5 mm. The appearance of one or more new lesions will also be considered progression.

Stable disease (SD): neither sufficient shrinkage to qualify for PR, nor sufficient increase to qualify for PD, taking as reference the smallest sum diameters while on study.

Karnofsky Performance Status (KPS) scorebaseline to Day 16 and Day 32 of treatment

KPS describes an outcome in 11 grades, starting as normal without complaints and evidence of disease (equals 100 as the best) and dead (equals 0) as the lowest. KPS score will be assessed every 16 days during 32-day treatment period.

Sum CTC scorebaseline to Day 16 and Day 32 of treatment

The Sum CTC score will be a sum of all registered CTC scores by 15 categories.

Number of registered adverse eventsbaseline to Day 32 of treatment

Adverse events (AEs) will be coded according to the MedDRA (version 16.1E). AEs will be systemized by system organ class and by preferred term. AEs will be analyzed by severity, seriousness and relatedness to the drug.

Changes in the scores of the general questionnaire EORTC QLQ-C30 ("Physical activity problem last week", "Discomfort last week", "Health and quality of life")baseline to Day 16 and Day 32 of treatment

The EORTC QLQ-C30 is a general quality of life questionnaire for cancer patients. The questionnaire contains 30 questions. Three variables will be obtained from the EORTC QLQ-C30: the sum of scores C1 to C5 denoted as "Physical activity problem last week", the sum of scores C6 to C28 denoted as "Discomfort last week", and the sum of scores C29 and C30 denoted as "Health and quality of life".

Number of target lesionsbaseline to Day 32 of treatment

Number of target lesions per each patient will be evaluated by CT with contrasting. Change in number of target lesions from baseline to Day 32 of treatment will be presented in shift tables.

Changes in three separate scores of the specific questionnaire EORTC QLQ-BR23 ("Breast cancer treatment problem last week", "Sexual interest and activity last four weeks", "Breast cancer related pain and discomfort last week")baseline to Day 16 and Day 32 of treatment

The EORTC QLQ-BR23 is a breast cancer-specific quality of life questionnaire. The questionnaire consists of 23 questions. Three variables will be obtained from the EORTC-BR23: the sum of scores BR1 to BR13 denoted as "Breast cancer problem last week", the sum of scores BR14 to BR16 denoted as "Sexual interest and activity last four weeks" and the sum of scores BR17 to BR23 denoted as "Breast cancer related pain and discomfort last week".

Change in Maximum Common Toxicity Criteria (CTC) scorebaseline to Day 16 and Day 32 of treatment

Maximum CTC score will be recorded using NCI Common Toxicity Criteria v2.0 divided in 15 categories.

Trial Locations

Locations (6)

Russian Oncological Research Centre n.a. N.N. Blokhin, Russian Academy of Medical Science (RAMS)

🇷🇺

Moscow, Russian Federation

Leningrad Regional Oncological Centre

🇷🇺

St. Petersburg, Russian Federation

Udon Thani Cancer Hospital

🇹🇭

Udon Thani, Thailand

Siriraj Hospital, Mahidol University

🇹🇭

Bangkok, Thailand

State Budgetary Institution of Nizhniy Novgorod Region "Oncology Dispensary of Nizhniy Novgorod" (Branch nr.1)

🇷🇺

Nizhniy Novgorod, Russian Federation

St. Petersburg State Budgetary Health Organization, City Clinical Oncology Dispensary

🇷🇺

St Petersburg, Russian Federation

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