Maximum Tolerable Concentration of abnobaVISCUM Fraxini Intravesically in Patients With Superficial Bladder Cancer

NCT ID: NCT02007005

Last Updated: 2015-05-06

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE1/PHASE2
• Total Enrollment: 37 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2004-01-31
• Study Completion Date: 2013-09-30

Brief Summary

The aim of this phase Ib/IIa study is to investigate the maximum tolerable concentration of abnobaVISCUM® Fraxini for intravesical instillation in patients with superficial bladder cancer. Secondary objectives are the local and systemic tolerability, the influence on tumor remission and the influence on the one-year recurrence rate.

Detailed Description

A dose-escalation-study according ICH/GCP (International Conference on Harmonisation/Good Clinical Practice) with different concentrations of abnobaVISCUM® Fraxini is conducted in two hospitals in Germany and Egypt. Patients with superficial bladder cancer TaG1/G2 or T1G1/G2 are enclosed after TUR-B (transurethral resection bladder). The tolerability of the different concentrations is assessed after weekly instillations into the urinary bladder for 6 weeks. A direct antitumoral effect is assessed on a single marker tumor left in the bladder after a complete TUR of all other lesions according a study design established by the EORTC-GENITO-URINARY GROUP (European Organisation for Research and Treatment of Cancer). A re-TUR is conducted after 12 weeks. Tumor response is measured by biopsy of the marker lesion and by cytology. Safety of the instillations is measured by analysis of adverse events, vital signs and clinical laboratory tests. After treatment of a cohort is finished a safety evaluation is conducted to decide about the increase to the next dosage.

Conditions

Superficial Bladder Cancer

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Dose escalation

intravesical instillation of abnobaVISCUM Fraxini

Group Type: EXPERIMENTAL

abnobaVISCUM Fraxini

Intervention Type: DRUG

intravesical instillation 6 times, once weekly, in increasing dosages until dose-limiting-toxicity occurs

Interventions

abnobaVISCUM Fraxini

intravesical instillation 6 times, once weekly, in increasing dosages until dose-limiting-toxicity occurs

Intervention Type: DRUG

Other Intervention Names

viscum album extract; mistletoe extract; abnobaVISCUM

Eligibility Criteria

Inclusion Criteria

• Patients with clinically proved superficial bladder cancer (Ta G1/G2 or T1G1/G2) 2 - 7 weeks before transurethral resection
• Written informed consent for study participation and for documentation of disease data including further distribution of these data

Exclusion Criteria

• Muscle invasive bladder carcinoma and/or carcinoma in situ (CIS)
• Intravesical instillation therapy within 6 months prior to study enrolment
• Radiotherapy of the bladder prior to study enrolment
• Contracted bladder (capacity less than 100 ml)
• Non treated acute or chronic urinary tract infection
• Allergy against mistletoe extract preparations
• Subvesical obstructions (e. g. prostate hyperplasia, urethral stenosis, residual urine volume more than 80 ml)
• Severe illnesses and circumstances not permitting study participation (e. g. alcoholism or substance abuse)
• Pregnancy or lactation (pregnancy test if required) as well as women without sufficient contraception
• Participation in another clinical study within 30 days prior to this study
• Administration of immunotherapeutic and/or cytostatic drugs within 4 weeks prior to study enrolment
• Chronic progressive infections (e. g. tuberculosis)
• Pre-treatment with mistletoe extracts/mistletoe lectins

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 80 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Abnoba Gmbh

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Herbert Ruebben, Prof.Dr.Dr.

Role: STUDY_DIRECTOR

Director of the Urological Clinic of the University Hospital Essen

Locations

Theodor Bilharz Research Institute

Giza, , Egypt

Clinic of Urology of the University Hospital of Essen

Essen, , Germany

Countries

Egypt; Germany

References

Rose A, El-Leithy T, vom Dorp F, Zakaria A, Eisenhardt A, Tschirdewahn S, Rubben H. Mistletoe Plant Extract in Patients with Nonmuscle Invasive Bladder Cancer: Results of a Phase Ib/IIa Single Group Dose Escalation Study. J Urol. 2015 Oct;194(4):939-43. doi: 10.1016/j.juro.2015.04.073. Epub 2015 Apr 22.

Reference Type: RESULT

PMID: 25910967 (View on PubMed)

Other Identifiers

AB01

Identifier Type: -

Identifier Source: org_study_id