Influenza Clinical Trial
Official title:
A Randomized, Double-Blind Trial on the Safety and Immunogenicity of Seasonal 2010-2011 Inactivated Trivalent Influenza Vaccine in Pregnant Women
The purpose of this study is to see how much antibody (proteins produced by the immune system that help fight infections) the body makes after getting a flu vaccine. Researchers will also look at how the body reacts to the flu vaccine and how it affects the babies of pregnant women. The study will enroll approximately 240 women ages 18-39 years, including 180 pregnant women in their second or third trimester of pregnancy (at least 14 weeks pregnant) and 60 non-pregnant women. Participants will be randomly (by chance) assigned to 1 of 3 vaccine groups. Each participant will receive one shot of a 2010-2011 flu season licensed vaccine. The vaccine will be given as an intramuscular injection (shot in the muscle) in the upper arm. Study procedures include pregnancy testing, blood draws, and memory aids. Patient participation may be up to 8 months. The information from this study will help guide researchers in developing flu vaccines for pregnant women.
Status | Completed |
Enrollment | 183 |
Est. completion date | November 2011 |
Est. primary completion date | November 2011 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Female |
Age group | 18 Years to 39 Years |
Eligibility |
Inclusion Criteria: Pregnant women: - Pregnant female between the ages of 18 and 39 years, inclusive. - Is a singleton pregnancy and is from 14 weeks/0 days through 33 weeks/6 days of gestation. - Had at least one prenatal visit during which pregnancy was confirmed. - Is in good health, as determined by vital signs [heart rate <100 beats per minute (bpm); blood pressure: systolic <140 mm Hg; diastolic less than or equal to 90 mm Hg; oral temperature <100 degrees Fahrenheit], medical history to ensure any existing medical diagnoses or conditions are stable and not considered clinically significant, and targeted physical examination based on medical history. A stable medical condition is defined as health outcomes of a specific disease are considered to be within acceptable limits in the last 3 months. - Intends to be available through 6 months following receipt of 2010-2011 seasonal influenza vaccine or until all delivery record information has been obtained, whichever is longer. - Able to understand and comply with planned study procedures. - Provides written informed consent prior to initiation of any study procedures. - Agrees to sign medical release for herself and her infant to allow study staff to gather pertinent medical information and pregnancy outcome data, if needed per clinical site policy. Non-pregnant women: - Female between the ages of 18-39 years, inclusive. - For the 30 days prior to enrollment through 30 days following receipt of 2010-2011 inactivated trivalent influenza vaccine (TIV) in the study must fulfill one of the following: (i) she is not able to bear children because she has been surgically sterilized (hysterectomy) or is at least 1 year status post tubal ligation or 1 year post-menopausal or (ii) she agrees to practice effective methods of contraception including, but not limited to, abstinence, barrier methods (such as a condom or diaphragm) used with a spermicide, birth control pills, patches or hormonal shots or hormonal implants, NuvaRing and IUDs (intrauterine devices), or monogamy with vasectomized partner. - For a female subject of childbearing potential, must have a negative pregnancy test (urine or serum) within 24 hours prior to vaccination. - Is in good health, as determined by vital signs, medical history to ensure any existing medical diagnoses or conditions are stable and not considered clinically significant, and targeted physical examination based on medical history (if indicated). A stable chronic medical condition is defined as no change in prescription medication, dose, or frequency of medication in the last 3 months and health outcomes of the specific disease are considered to be within acceptable limits in the last 6 months. Any change that is due to change of health care provider, insurance company etc, or that is done for financial reasons, as long as in the same class of medication will not be considered a violation of this inclusion criterion. Any change in prescription medication due to improvement of a disease outcome will not be considered a violation of this inclusion criterion. - Intends to be available through 6 months following receipt of 2010-2011 inactivated TIV. - Able to understand and comply with planned study procedures. - Provides written informed consent prior to initiation of any study procedures. Infants born to pregnant women: - Infant aged 6 weeks (plus/minus 14 days), born to mothers enrolled in this study. - Had a cord blood sample collected at time of labor and delivery. - Parent(s)/legal guardian(s) must be willing and able to comply with planned study procedures and be available for study visit. - Subject and/or parent(s)/legal guardian(s) must provide written informed consent prior to initiation of any study procedures. Exclusion Criteria: Pregnant women: - Has received the 2010-2011 trivalent influenza vaccine (inactivated or live). - Has a known allergy or hypersensitivity to eggs, egg proteins, latex or other components in the vaccines (including, but not limited to: formaldehyde, polyethylene glycol p-isooctylphenyl ether, sucrose, gelatin, polysorbate 80, kanamycin, polymyxin and neomycin). - Has a history of severe reactions following previous immunization with influenza virus vaccines. - Has received any other live licensed vaccines within 4 weeks or inactivated licensed vaccines within 2 weeks prior to vaccination in this study or plan receipt of such vaccines within 28 days following vaccination. Measles, mumps, and rubella vaccine and tetanus, diphtheria, and acellular pertussis vaccine and human papillomavirus vaccine are permitted post-partum. - Is enrolled or plans to enroll in another interventional clinical trial with an investigational product during the current pregnancy and while participating in this study (observational studies are allowed). - Has an acute illness and/or an oral temperature >/= 100.0 degrees F, within 72 hours of vaccination (This may result in a temporary delay of vaccination). - Has immunosuppression as a result of an underlying illness or treatment, or use of anti-cancer chemotherapy or radiation therapy within the preceding 36 months. - Has an active neoplastic disease (excluding non-melanoma skin cancer), a history of any hematologic malignancy, current bleeding disorder, or taking anticoagulants (a daily aspirin may be acceptable). - Long term use of glucocorticoids, including oral or parenteral, or high-dose inhaled steroids (>800 mcg/day of beclomethasone dipropionate or equivalent) within the preceding 6 months (nasal and topical steroids are allowed) or has received betamethasone or dexamethasone to accelerate fetal lung maturity. - Has a history of receiving immunoglobulin or other blood product (with exception of Rhogam) within the 3 months prior to enrollment in this study. - Has a diagnosis of a current and uncontrolled major psychiatric disorder. - Has been hospitalized for psychiatric illness, history of suicide attempt, or confinement for danger to self or others, within the past 10 years. - The subject is receiving any of the following psychiatric drugs: aripiprazole, clozapine, ziprasidone, haloperidol, molindone, loxapine, thioridazine, thiothixene, pimozide, fluphenazine, risperidone, mesoridazine, quetiapine, trifluoperazine, trifluopromazine, chlorprothixene, chlorpromazine, perphenazine, olanzapine, carbamazepine, divalproex sodium, lithium carbonate or lithium citrate. Subjects who are receiving an antidepressant drug (not listed above) and are stable for at least 3 months prior to enrollment without decompensating are allowed enrollment into the study. - Known active infection with human immunodeficiency virus (HIV), hepatitis B, or hepatitis C. - History of alcohol or drug abuse in the last 5 years. - Has a seizure disorder or is on an anti-seizure medication. - Has a history of Guillain-Barré Syndrome. - Has an acute or chronic medical condition that, in the opinion of the investigator would render vaccination unsafe, or would interfere with the evaluation of responses (this includes, but is not limited to, known cardiac disease, chronic hypertension, chronic liver disease, significant renal disease, unstable or progressive neurological disorder, transplant recipients or diabetes, juvenile diabetes [Type I] or advanced diabetes with renal disease or eye disease. Gestational diabetes controlled by diet or insulin is acceptable). - Has any of the following active medical conditions at the time of enrollment: Hyperemesis gravidarium, premature labor (regular uterine contractions with cervical change), fetus with known major congenital anomaly or genetic abnormality, fetal growth restriction, preeclampsia, or known uterine anomaly (e.g. bicornuate uterus, submucosal fibroids > 5cm). - Has a history of preeclampsia or preterm birth <35 weeks gestation during a previous pregnancy - Has any condition that would, in the opinion of the site investigator, place the subject at an unacceptable risk of injury or render the subject unable to meet the requirements of the protocol. Non-pregnant women: - Has received the 2010-2011 trivalent influenza vaccine (inactivated or live). - Has a known allergy or hypersensitivity to eggs, egg proteins, latex or other components in the vaccines (these may include, but not limited to: formaldehyde, polyethylene glycol p-isooctylphenyl ether, sucrose, gelatin, polysorbate 80, kanamycin, polymyxin and neomycin). - Has a history of severe reactions following previous immunization with influenza virus vaccines. - Has received any other live licensed vaccines within 4 weeks or inactivated licensed vaccines within 2 weeks prior to vaccination in this study or plan receipt of such vaccines within 28 days following vaccination. - Is enrolled or plans to enroll in another interventional clinical trial with an investigational product at the time of enrollment or during participation in this trial (observational studies are allowed). - Has an acute illness and/or an oral temperature greater than or equal to 100.0 degrees F, within 72 hours of vaccination (This may result in a temporary delay of vaccination). - Has immunosuppression as a result of an underlying illness or treatment, or use of anti-cancer chemotherapy or radiation therapy within the preceding 36 months. - Has an active neoplastic disease (excluding non-melanoma skin cancer), a history of any hematologic malignancy, current bleeding disorder, or taking anticoagulants (daily aspirin may be acceptable. - Long term use of glucocorticoids, including oral or parenteral, or high-dose inhaled steroids (>800 mcg/day of beclomethasone dipropionate or equivalent) within the preceding 6 months (nasal and topical steroids are allowed). - Has a history of receiving immunoglobulin or other blood product within the 3 months prior to enrollment in this study. - Has a diagnosis of a current and uncontrolled major psychiatric disorder. - Has been hospitalized for psychiatric illness, history of suicide attempt, or confinement for danger to self or others, within the past 10 years. - The subject is receiving any of the following psychiatric drugs: aripiprazole, clozapine, ziprasidone, haloperidol, molindone, loxapine, thioridazine, thiothixene, pimozide, fluphenazine, risperidone, mesoridazine, quetiapine, trifluoperazine, trifluopromazine, chlorprothixene, chlorpromazine, perphenazine, olanzapine, carbamazepine, divalproex sodium, lithium carbonate or lithium citrate. Subjects who are receiving an antidepressant drug (not listed below) and are stable for at least 3 months prior to enrollment without decompensating are allowed enrollment into the study. - Known active infection with HIV, hepatitis B, or hepatitis C. - History of alcohol or drug abuse in the last 5 years. - Has a seizure disorder or is on an anti-seizure medication. - Has a history of Guillain-Barré Syndrome. - Has an acute or chronic medical condition that, in the opinion of the investigator would render vaccination unsafe, or would interfere with the evaluation of responses (this includes, but is not limited to, known cardiac disease, chronic liver disease, significant renal disease, unstable or progressive neurological disorder, transplant recipients or uncontrolled diabetes, juvenile diabetes [Type I] or advanced diabetes with renal disease or eye disease. Diabetes controlled by diet or oral agents is acceptable). - Has any condition that would, in the opinion of the site investigator, place the subject at an unacceptable risk of injury or render the subject unable to meet the requirements of the protocol. Infants born to pregnant women: - Have any condition that would, in the opinion of the site investigator, place them at an unacceptable risk of injury or render them unable to meet the requirements of the protocol. |
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Prevention
Country | Name | City | State |
---|---|---|---|
United States | Duke University Medical Center - Duke Perinatal Clinic | Durham | North Carolina |
United States | Baylor College of Medicine - Molecular Virology and Microbiology | Houston | Texas |
United States | Vanderbilt University - Pediatric - Vanderbilt Vaccine Research Center | Nashville | Tennessee |
United States | Saint Louis University - Center for Vaccine Development | Saint Louis | Missouri |
United States | Group Health Research Institute - Seattle | Seattle | Washington |
Lead Sponsor | Collaborator |
---|---|
National Institute of Allergy and Infectious Diseases (NIAID) |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Number of Participants Reporting Vaccine-associated Unsolicited Non-serious Adverse Events | Unsolicited non-serious adverse events were collected from participants at follow up contacts, either by phone or in clinic, through 28 days after vaccination. Association to vaccination was determined by a clinician licensed to make a medical diagnosis and listed on the site's Federal Drug Administration's Form 1572. | Day 0 through Day 28 post vaccination | Yes |
Primary | Number of Participants Reporting Maternal Complications of Pregnancy, Labor and Delivery | Participants were contacted after delivery, and medical records reviewed, to collect complications experienced during pregnancy, labor and delivery. The data collection process followed a prospectively-defined list of complications reported for this outcome measure, some of which may have also been reported as serious adverse events if otherwise meeting those requirements. | During the pregnancy and at the time of delivery | Yes |
Primary | Number of Participants Reporting Neonatal Complications | Participants were contacted after delivery, and medical records reviewed, to collect neonatal complications. The data collection process followed a prospectively-defined list of complications reported for this outcome measure, some of which may have also been reported as serious adverse events if otherwise meeting those requirements. | At time of delivery | Yes |
Primary | Number of Participants Reporting Vaccine-associated Serious Adverse Events (SAEs) | Serious adverse events included any untoward medical occurrence that resulted in death of the mother, fetus or infant; was life threatening to mother, fetus or infant; was a persistent/significant disability/incapacity; required in-patient hospitalization or prolongation thereof; was a congenital anomaly/birth defect in fetus or infant; or may have jeopardized the mother, fetus or infant, or required intervention to prevent one of the outcomes, or was described as Guillain-Barré Syndrome. Association was determined by a clinician licensed to diagnose and listed on the site's FDA Form 1572. | Day 0 through Day 180 after vaccination | Yes |
Primary | Number of Participants Reporting Solicited Subjective Local Reactions After Vaccination | Participants maintained a memory aid to record daily the occurrence of local reactions of pain, tenderness and swelling for 8 days after vaccination (Day 0-7) based on their interference with daily activities. Participants are counted if they reported experiencing the symptom at any severity on any of the 8 days. | 8 days after vaccination (Days 0-7). | Yes |
Primary | Number of Participants Reporting Solicited Quantitative Local Reactions After Vaccination | Participants maintained a memory aid to record daily the occurrence of local reactions of redness and swelling for 8 days after vaccination (Day 0-7). If the reaction was present, the maximum diameter was measured in millimeters (mm). Participants are counted if they reported experiencing the reaction with any measurement greater than 0 mm on any of the 8 days. | 8 days after vaccination (Days 0-7). | Yes |
Primary | Number of Participants Reporting Solicited Subjective Systemic Reactions After Vaccination | Participants maintained a memory aid to record daily the occurrence of systemic symptoms of feverishness, malaise, myalgia, headache, and nausea for 8 days after vaccination (Day 0-7) based on their interference with daily activities. Participants are counted if they reported experiencing the symptom at any severity on any of the 8 days. | 8 days after vaccination (Days 0-7). | Yes |
Primary | Number of Participants Reporting Fever After Vaccination | Participants were provided with a thermometer and a memory aid on which to record daily oral temperatures for 8 days after vaccination (Day 0-7). The protocol defined fever as oral temperature of 37.8 degrees Celsius or higher. Participants are counted as experiencing fever if they reported oral temperatures of 37.8 degrees Celsius or higher on any of the 8 days. | 8 days after vaccination (Days 0-7). | Yes |
Primary | Hemagglutination Inhibition Assay (HAI) Geometric Mean Titer (GMT) Against Each Antigen in the 2010-2011 Seasonal Influenza Trivalent Influenza Vaccine | Blood was collected for HAI assay at Day 0 prior to vaccination and again at 28 days following vaccination. The HAI assay was conducted with the three antigens in the 2010-2011 seasonal inactivated TIV: Influenza B antigen, H1N1 antigen, and H3N2 antigen. | Day 0 prior to and Day 28 following vaccination | No |
Primary | Number of Participants With 4-fold or Greater Serum HAI Antibody Titer Increases Against Each Antigen in the 2010-2011 Seasonal Influenza Trivalent Influenza Vaccine | Blood was collected from all participants prior to vaccination as well as 28 days after vaccination. The HAI assay was conducted with the three antigens in the 2010-2011 seasonal inactivated TIV: Influenza B antigen, H1N1 antigen, and H3N2 antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 10 (the assay's lowest level of detection) and the Day 28 post vaccination titer was 40 or greater, or the Day 0 titer was greater than or equal to 10 and the Day 28 post vaccination titer was an increase by 4-fold or more. | Day 0 prior to and Day 28 after vaccination | No |
Primary | Number of Participants With HAI Antibody Titer of 40 or Greater Against Each Antigen in the 2010-2011 Seasonal Influenza Trivalent Influenza Vaccine | Blood was collected from all participants prior to vaccination as well as 28 days after vaccination. The HAI assay was conducted with the three antigens in the 2010-2011 seasonal inactivated TIV: Influenza B antigen, H1N1 antigen, and H3N2 antigen. Participants are counted if the titer at the timepoint is 40 or greater. | Day 0 prior to and Day 28 after vaccination | No |
Secondary | Hemagglutination Inhibition Assay (HAI) Geometric Mean Titer (GMT) Against Each Antigen in the 2010-2011 Seasonal Influenza Trivalent Influenza Vaccine at 6 Months After Vaccination | Blood was collected for HAI assay at approximately Day 180 following vaccination. The HAI assay was conducted with the three antigens in the 2010-2011 seasonal inactivated TIV: Influenza B antigen, H1N1 antigen, and H3N2 antigen. | Day 180 (approximately 6 months after vaccination) | No |
Secondary | Number of Participants With 4-fold or Greater Serum HAI Antibody Titer Increases Against Each Antigen in the 2010-2011 Seasonal Influenza Trivalent Influenza Vaccine at 6 Months After Vaccination | Blood was collected from all participants at 180 days after vaccination. The HAI assay was conducted with the three antigens in the 2010-2011 seasonal inactivated TIV: Influenza B antigen, H1N1 antigen, and H3N2 antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 10 (the assay's lowest level of detection) and the Day 180 post vaccination titer was 40 or greater, or the Day 0 titer was greater than or equal to 10 and the Day 180 post vaccination titer was an increase by 4-fold or more. | Day 180 (approximately 6 months after vaccination) | No |
Secondary | Number of Participants With HAI Antibody Titer of 40 or Greater Against Each Antigen in the 2010-2011 Seasonal Influenza Trivalent Influenza Vaccine at 6 Months After Vaccination | Blood was collected from all participants at 180 days after vaccination. The HAI assay was conducted with the three antigens in the 2010-2011 seasonal inactivated TIV: Influenza B antigen, H1N1 antigen, and H3N2 antigen. Participants are counted if the titer at the timepoint is 40 or greater. | Day 180 (approximately 6 months after vaccination) | No |
Secondary | Maternal HAI GMT Against Each Antigen in the 2010-2011 Seasonal Influenza Trivalent Influenza Vaccine at Time of Delivery | Maternal blood was collected for HAI assay at time of delivery. The HAI assay was conducted with the three antigens in the 2010-2011 seasonal inactivated TIV: Influenza B antigen, H1N1 antigen, and H3N2 antigen. | At time of delivery | No |
Secondary | Number of Participants With 4-fold or Greater Maternal Serum HAI Antibody Titer Increases Against Each Antigen in the 2010-2011 Seasonal Influenza Trivalent Influenza Vaccine at Time of Delivery | Blood was collected from all participants prior to vaccination as well as at time of delivery. The HAI assay was conducted with the three antigens in the 2010-2011 seasonal inactivated TIV: Influenza B antigen, H1N1 antigen, and H3N2 antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 10 (the assay's lowest level of detection) and the titer was 40 or greater at delivery, or the Day 0 titer was greater than or equal to 10 and the titer was an increase by 4-fold or more at delivery. | Day 0 prior to vaccination and at time of delivery | No |
Secondary | Number of Participants With a Maternal Serum HAI Antibody Titer Greater Than or Equal to 40 Against Each Antigen Included in the 2010-2011 Inactivated TIV at Time of Delivery. | Maternal blood was collected for HAI assay at time of delivery. The HAI assay was conducted with the three antigens in the 2010-2011 seasonal inactivated TIV: Influenza B antigen, H1N1 antigen, and H3N2 antigen. Participants are counted if the titer at the timepoint is 40 or greater. | At time of delivery | No |
Secondary | HAI GMT Against Each Antigen in the 2010-2011 Seasonal Influenza Trivalent Influenza Vaccine in Cord Blood Collected at Time of Delivery | Cord blood was collected at delivery for HAI assay at time of delivery. The HAI assay was conducted with the three antigens in the 2010-2011 seasonal inactivated TIV: Influenza B antigen, H1N1 antigen, and H3N2 antigen. | At time of delivery | No |
Secondary | Number of Participants With HAI Antibody Titer Greater Than or Equal to 40 Against Each Antigen Included in the 2010-2011 Inactivated TIV in Cord Blood Collected at Time of Delivery. | Cord blood was collected at delivery for HAI assay at time of delivery. The HAI assay was conducted with the three antigens in the 2010-2011 seasonal inactivated TIV: Influenza B antigen, H1N1 antigen, and H3N2 antigen. Participants are counted if the titer at the timepoint is 40 or greater. | At time of delivery | No |
Status | Clinical Trial | Phase | |
---|---|---|---|
Completed |
NCT05523089 -
The Effectiveness of CD388 to Prevent Flu in an Influenza Challenge Model in Healthy Adults
|
Phase 2 | |
Completed |
NCT05009251 -
Using Explainable AI Risk Predictions to Nudge Influenza Vaccine Uptake
|
N/A | |
Completed |
NCT03282240 -
Safety and Immunogenicity of High-Dose Quadrivalent Influenza Vaccine in Participants ≥65 Years in the US
|
Phase 3 | |
Completed |
NCT00968526 -
Study to Evaluate Immunogenicity and Safety of an Investigational Influenza Vaccine (H1N1) in Adults
|
Phase 3 | |
Completed |
NCT00971425 -
Evaluation of the Immune Response and the Safety of a Pandemic Influenza Candidate Vaccine (H1N1)
|
Phase 3 | |
Completed |
NCT00968539 -
Study to Evaluate the Immunogenicity & Safety of an Investigational Influenza Vaccine (H1N1) in Adults
|
Phase 3 | |
Completed |
NCT05525494 -
Patient Portal Flu Vaccine Reminders (5)
|
N/A | |
Completed |
NCT04074928 -
Safety and Immunogenicity Study of QIVc in Healthy Pediatric Subjects
|
Phase 3 | |
Completed |
NCT04695717 -
This Study Was Conducted to Evaluate the Safety and Immunogenicity of IVACFLU-S Produced in Children From 6 Months to Under 18 Years Old and the Elderly Over 60 Years Old in Vietnam
|
Phase 3 | |
Completed |
NCT05012163 -
Lottery Incentive Nudges to Increase Influenza Vaccinations
|
N/A | |
Completed |
NCT03888989 -
Response to Influenza Vaccine During Pregnancy
|
Phase 1 | |
Completed |
NCT04109222 -
Collection of Serum Samples From Children and Older Adults Receiving the 2019-2020 Formulations of Fluzone® Quadrivalent and Fluzone® High-Dose Influenza Vaccines, Respectively
|
Phase 4 | |
Completed |
NCT02587221 -
Clinical Study to Evaluate the Efficacy, Safety and Immunogenicity of an MF59-Adjuvanted Quadrivalent Influenza Vaccine Compared to Non-influenza Vaccine Comparator in Adults ≥ 65 Years of Age
|
Phase 3 | |
Completed |
NCT03453801 -
The Role of CD4+ Memory Phenotype, Memory, and Effector T Cells in Vaccination and Infection
|
Phase 1 | |
Completed |
NCT01440387 -
A Study of Immunogenicity and Safety of GSK Biologicals' Influenza Vaccine FLU-Q-QIV in Adults Aged 18 Years and Older
|
Phase 3 | |
Terminated |
NCT01195779 -
Trial to Evaluate Safety and Immunogenicity of GSK Biologicals' Influenza Vaccine GSK2584786A in Healthy Children
|
Phase 2 | |
Completed |
NCT03321968 -
Lot-to-lot Consistency of a Plant-Derived Quadrivalent Virus-Like Particles Influenza Vaccine in Healthy Adults
|
Phase 3 | |
Completed |
NCT00972517 -
Study to Evaluate the Immunogenicity and Safety of an Investigational Influenza Vaccine (H1N1) in Children
|
Phase 3 | |
Completed |
NCT04570904 -
Broadening Our Understanding of Early Versus Late Influenza Vaccine Effectiveness
|
||
Recruiting |
NCT03331991 -
Prevention of Influenza and Other Wintertime Respiratory Viruses Among Healthcare Professionals in Israel
|
N/A |