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Typbar TCV 7 years followup - to determine the long term persistence of immune response of Typbar TCV

AN EXTENSION OF BBIL/CTP/04/2010 PHASE 3 CLINICAL TRIAL OF TYPBAR TCV®: To DETERMINE THE LEVEL OF ANTI-SALMONELLA TYPHI VI POLYSACCHARIDE IGG ANTIBODIES AT THE END OF APPROXIMATELY 7 YEARS AND FOLLOW UP OF A BOOSTER DOSE OF TYPBAR TCV® DOSE IN THOSE WHO HAVE LOWER LEVEL OF ANTIBODIES (BELOW CORRELATE OF PROTECTION) IN HEALTHY PRIMED AND BOOSTER DOSE RECEIVED CHILDREN AND ADULTS - Typbar TCV® 7 years followup study

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2019/04/018575
Enrollment
981
Registered
2019-04-12
Start date
Unknown
Completion date
Unknown
Last updated
2021-11-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

Intervention1: Typbar TCV: 0.5ml by intramuscular route at day 0 Control Intervention1: Not applicable: Not applicable

Sponsors

Bharat Biotech International Ltd
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1.Healthy primed children and adults who participated in BBIL/CTP/04/2010 phase 3 and its addendum (initiated: August 2011) follow-on extension clinical trial 2.Adults and for minor subjects whose parent or guardian is able to understand planned study procedures comprehend and will comply with the requirements of the protocol procedures. 3.Written informed consent obtained from adult subject or subjects parent or guardian (if minor) prior to performance of any study specific procedure. 4.Generally healthy subjects without acute or chronic clinically significant pulmonary, cardiovascular hepatic or renal functional abnormality as determined by physical examination.

Exclusion criteria

Exclusion criteria: 1.Primed and boostered subjects whose anti-salmonella Vi-polysaccharide IgG titer are found to be >2µg/mL 2.Use of any investigational or non-registered product (drug or vaccine) other than the study vaccines or vaccines as per UIP schedule during the study period 3.Concurrently participating in another clinical study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational vaccine/product (pharmaceutical product for typhoid). 4.Administration of long-acting immune-modifying drugs (e.g. infliximab, rituximab) at any time during the study period. 5.Any confirmed or suspected immunosuppressive or immune-deficient condition, based on medical history and physical examination (e.g. Severe Combined Immunodeficiency Disease). 6.Subject with history of hypersensitivity to the vaccine or any of its composition or a present or past history of allergic reactions. 7.Subjects suffering from acute or chronic infections or any other serious liver, renal, cardiac, respiratory or metabolic disease. 8.Subjects with uncontrolled epilepsy or other progressive diseases of nervous system. 9.Subjects unwilling to comply with the study procedures. 10.Infection with Human Immunodeficiency Virus (HIV) regardless of clinical stage of immunodeficiency or current autoimmune disease. 11.Have signs or symptoms that could confound or confuse assessment of study vaccine reactogenicity

Design outcomes

Primary

MeasureTime frame
To determine the long term persistence of immune response of Typbar TCV®Timepoint: Day -60 to -1 Day 0 Day 28

Secondary

MeasureTime frame
To evaluate the safety and tolerability of booster dose of Typbar TCV® a)Proportion of participants with local and systemic adverse events b)Proportion of participants with Serious Adverse Events. Timepoint: Day 0 Day 28

Countries

India

Contacts

Public ContactDr Rajeshri

Bharat Biotech International Limited

rajeshri3822@bharatbiotech.com04023480422

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026