Neoplasms

Urinary Tract, Sexual Organs, and Pregnancy Conditions

All Conditions

Urinary Bladder Neoplasms

Non-Muscle Invasive Bladder Neoplasms

Urologic Neoplasms

Urogenital Neoplasms

Urogenital Diseases

Female Urogenital Diseases

Pregnancy Complications

Female Urogenital Diseases and Pregnancy Complications

Urinary Bladder Diseases

Urologic Diseases

Male Urogenital Diseases

Carcinoma

Neoplasms, Glandular and Epithelial

Neoplasms by Histologic Type

All Drugs and Chemicals

BCG Vaccine

intravesical instillation of Ty21a in patients not requiring BCG

Ty21a

denise N Haefliger, PhD

Denise N Haefliger, PhD

denise N Haefliger

Bladder cancer is the fourth and eighth most common malignancy among men and women, respectively. About 75% of bladder cancers are diagnosed as non muscle-invasive and according to specific tumor-stage and grade characteristics, intravesical immunotherapy with Bacillus Calmette-Guérin (BCG) is used to prevent recurrence and/or progression. However, BCG immunotherapy is associated with significant adverse events and treatment failure may occur in 30-40% of cases, hence the necessity for alternative therapies. In an orthotopic MB49 mouse bladder cancer model, another bacterial vaccine (Ty21a/Vivotif) turned out to be more effective than BCG for inducing tumor regression and mice survival upon intravesical instillation; and potentially safer because Ty21a bacteria did not infect/persist in any mice tissues nor in human bladder explants or cell lines, in contrast to BCG. Ty21a/Vivotif has been used in the last 30 years in millions of individuals as an oral typhoid vaccine with a high safety record. In this phase I trial we will be testing the safety of intravesical administration of Ty21a and its effect on bladder immunity in non-muscle invasive bladder cancer (NMIBC) patients, for whom recommendation of BCG therapy is not mandatory.

Escalating doses of Ty21a/Vivotif® will be administered by the intravesical route to evaluate whether Ty21 may replace the standard BCG immunotherapy in NMIBC patients.

The minimal starting dose will be instilled intravesically once a week for 4 weeks in 3 patients. If well tolerated, a 5-fold higher dose will be instilled 4-times in 3 other patients, and so on for a maximum of 4 doses to be tested.

The maximal tolerated dose will then be administered to 3 new patients 6-times once a week. If 6 instillations are well tolerated, 7 additional patients will be included to receive 6 instillations with this maximal tolerated dose.

Intravesical Ty21a for the Treatment of Patients With Non-muscle-invasive Bladder Cancer (NMIBC)

safety and tolerability of intravesical Ty21a

Patrice Jichlinski

Professor, Dpt Chief

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Intravesical Ty21a for the Treatment of Patients With Non-muscle-invasive Bladder Cancer (NMIBC)	NCT03421236	Non Muscle Inva...	Ty21a	18 Years -	University of Lausanne Hospitals
Intravesical Ty21a for the Treatment of Patients With Non-muscle-invasive Bladder Cancer (NMIBC)	NCT03421236	Non Muscle Inva...	Ty21a	18 Years -	University of Lausanne Hospitals

Spots Global Cancer Trial Database for ty21a

Every month we try and update this database with for ty21a cancer trials from around the world to help patients and their families find trials that might be right for them.
We offer this 100% free of charge and do not endorse any of the trials listed here, we hope it helps you or a loved one.

Spots Global Cancer Trial Database for ty21a

Every month we try and update this database with for ty21a cancer trials from around the world to help patients and their families find trials that might be right for them. We offer this 100% free of charge and do not endorse any of the trials listed here, we hope it helps you or a loved one.

Every month we try and update this database with for ty21a cancer trials from around the world to help patients and their families find trials that might be right for them.
We offer this 100% free of charge and do not endorse any of the trials listed here, we hope it helps you or a loved one.