Clinical trial · Observational
Antibody Titer Analysis After H1N1 Vaccination in Pediatric Haemato-oncology Patients
Antibody Titer Analysis Afer Monovalent Vaccination in Pediatric Haemato-oncology Patients
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The patients of pediatric haemato-oncology have a higher risk for novel H1N1 influenza infection than general population, and they are strongly recommended to receive novel H1N1 vaccination. However, there is no previous data to answer how the efficacy and effectiveness of novel H1N1 vaccination is in patients of pediatric haemato-oncology. This study is designed to investigate the antibodies titers before and after the novel H1N1 influenza vaccination in these patients. Titer of H1N1 influenza virus antibodies will be determined by hemagglutinin inhibition assay (HAI). A HAI titer with a 4-fold rise or greater is defined as seroconversion. Study subjects with seroconversion are regarded as responsiveness to the vaccination. Meanwhile, if the patient presents influenza-like symptoms, we will perform throat swab or nasal swab for influenza rapid test, viral isolation, and novel H1N1 influenza PCR to confirm the diagnosis. After the study, we will be able to know whether or not current novel H1N1 influenza vaccination schedule is adequate and efficient for pediatric haemato-oncology patients.
Conditions
Conditions (3)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Novel H1N1 Influenza Vaccination | — | UNRESOLVED | — |
| Pediatric Haemato-oncology Patients | — | UNRESOLVED | — |
| Serology Analysis | — | UNRESOLVED | — |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Influenza A (H1N1) 2009 monovalent vaccine, inactivated | Biological | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- label
- Serology after Novel H1N1 vaccination
- description
- This study is designed to investigate the antibodies titers before and after the novel H1N1 influenza vaccination in pediatric haemato-oncology patients.
- interventionNames
- Biological: Influenza A (H1N1) 2009 monovalent vaccine, inactivated
Primary outcomes (1)
- measure
- This study is designed to investigate the antibodies titers before and after the novel H1N1 influenza vaccination in these patients. Titer of H1N1 influenza virus antibodies will be determined by hemagglutinin inhibition assay (HAI).
- timeFrame
- Dec, 2009 - Feb, 2010
Secondary outcomes (1)
- measure
- If the patient presents influenza-like symptoms during the six month follow up period, we will perform throat swab or nasal swab for influenza rapid test, viral isolation, and novel H1N1 influenza PCR to confirm the diagnosis.
- timeFrame
- Dec, 2009 - Jun, 2010
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 6 Months
- Maximum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Boys or girls aged ≧ 6 months old to 18 years old on the day of first vaccination; * Subject and/or parents(s)/legal guardian(s) was willing to comply with planned study procedures and be available for all study visits; * Subject was ever treated at pediatric haemato-oncology ward * Subject and/or parents(s)/legal guardian(s) must read and signed the study-specific informed consent prior to initiation of any study procedure. Exclusion Criteria: * History of hypersensitivity to eggs or egg protein or similar pharmacological effects to study medication (AdimFlu-S (A/H1N1)); * Personal or family history of Guillain-Barré Syndrome; * An acute febrile illness within the last 72 hours prior to vaccination; * Subject with bleeding disorder or has any coagulation disorder that needs receipt of anticoagulants in the 3 weeks preceding inclusion contraindicating intramuscular injection; * Subjects with influenza-like illness as defined by the presence of fever (temperature ≧38.5℃ ) and at least two of the following four symptoms: headache, muscle/joint aches and pains (e.g. myalgia/arthralgia), sore throat and cough; * Female subjects who are pregnant, lactating or likely to become pregnant during the study; Women of childbearing potential disagree to use an acceptable method of contraception (e.g., hormonal contraceptives, IUD, barrier device or abstinence) throughout the study; * Underlying condition in the investigator's opinion may be inappropriate for vaccination;
References
Publications (0)
Data not yet available