1,050 Clinical Trials for Various Conditions
This is a multicenter, randomized, double-blind, placebo-controlled study to evaluate the safety, tolerability, PK, and immunogenicity of APG777 in adult participants with mild-to-moderate asthma. The duration of the study will be approximately 52 weeks (364 days) for each participant and will consist of a Screening Period, Treatment Period, and Follow-up Period.
A randomized, placebo controlled, double-blind (within dosing group), sequential dose escalation study. This phase 1 trial addresses the urgent need for a vaccine to prevent disease resulting from infection with West Nile virus (WNV), a virus that is primarily spread to people by the bite of an infected mosquito. The purpose of this Phase 1 trial is to evaluate the safety and immunogenicity of the HydroVax-001B WNV vaccine in healthy adult volunteers. The study Population will consist of healthy male and non-pregnant, non-breastfeeding female adults, 18 to 49 years of age, inclusive. Potential participants with a history of prior flavivirus infection or receipt of any flavivirus vaccine or monoclonal antibody, and those who likely had a prior flavivirus infection based on exposure history will be ineligible for the study. Participants will be randomized to receive HydroVax-001B WNV vaccine or placebo in a 12:3 ratio within a dosage group. Participants will be sequentially enrolled into two dosage groups. The primary objective is to assess the safety and reactogenicity of 4 mcg versus 10 mcg dose of the HydroVax-001B WNV vaccine administered intramuscularly (IM) on Days 1, 29 and 181.
This study is a randomized immunogenicity study in an enrolled cohort with active surveillance for influenza-like illness (ILI). During this study, participants will be randomly assigned to receive an approved cell culture-based influenza vaccine (Flucelvax) versus a licensed comparator influenza vaccine (Flublok or Fluzone). Blood samples from participants will be collected for measurement of biomarkers of immune response at baseline (visit 1; day 1), post-vaccination (visit 2; day 29), and post-season (visit 3; day 181). Participants will be asked if they wish to also provide saliva specimens at baseline (visit 1; day 1), post-vaccination (visit 2; day 29), and post-season (visit 3; day 181). Serum and peripheral blood mononuclear cells (PBMC) and plasma samples will be isolated from whole blood and tested for biomarkers of vaccine immunogenicity, and duration of antibody responses. Participants will receive electronic surveys via email or text message weekly asking about changes in health status and new ILI symptoms; those reporting illness may be asked to provide a respiratory swab for laboratory testing for influenza and other respiratory viruses and up to 2 additional blood draws (acute \[\<10 days after symptom onset\] and convalescent \[28 days after acute visit if lab-confirmed positive for influenza\]).
The study will evaluate the safety, tolerability, and immunogenicity (your immune system's reaction) of the study vaccine called Herpes Zoster IN001 mRNA Vaccine (IN001) in healthy participants who are between 50 and 69 years of age
To determine whether providing a recombinant booster COVID-19 vaccine improves sustained humoral and cell-mediated immunogenicity against SARS-CoV-2 in immunosuppressed patients with Inflammatory Bowel Disease (IBD) and/or solid organ transplant recipients. 120 participants will be enrolled and can expect to be on study for 6 months.
The purpose of this phase 3 multicenter, randomized, double-blind, placebo-controlled rollover study is to evaluate the safety and long-term immunogenicity of CHIKV VLP vaccine in adult and adolescent participants and to evaluate CHIKV VLP booster vaccine induced serum neutralizing antibody (SNA) response at 3, 4, or 5 years post-initial CHIKV VLP vaccination.
The purpose of this study is to assess the safety and immunogenicity of different formulations of monovalent Influenza A/Astrakhan/3212/2020-like virus vaccine with AS03 adjuvant system in adults greater than or equal to (\>=)18 years of age.
This is a Phase 1, single-site, comparator-controlled, dosage-escalating study of an intramuscularly administered mRNA-LNP vaccine encoding for DCVC H1 HA in up to 50 adult volunteers aged 18 to 49 years, inclusive. This study is designed to assess the safety and immunogenicity of two doses of DCVC H1 HA mRNA vaccine administered 28 days apart. Eligible participants will be sequentially enrolled into dosage escalation groups (10 mcg, 25 mcg, and 50 mcg). A separate group of 10 participants will receive one dose of the licensed quadrivalent influenza vaccine (IIV4). Enrollment of participants into the IIV4 group is limited to when the vaccine is available for a given year. Concurrent enrollment of the IIV4 group and any pre-specified study product group or groups may present logistical challenges due to the availability of the IIV4 vaccine and may preclude enrollment of all study participants prior to the subsequent off-season. Participants receiving IIV4 will be followed for safety but only their immune responses will be compared to those of participants receiving DCVC H1 HA mRNA vaccine. Dosing of DCVC H1 HA mRNA vaccine will commence at the lowest dose (10 mcg) and only escalate to the next highest dose if safety concerns are not identified. For each DCVC H1 HA mRNA vaccine dosing group, the first two participants enrolled will be considered the sentinel subgroup. After the two participants in the Low Dose sentinel subgroup are enrolled and given their first vaccination, enrollment and subsequent vaccinations in that dosing group will then be stopped until Day 3. This review will be conducted by a Safety Review Committee (SRC). If no halting criteria are met, the SRC will allow administration of the second dose for the sentinel subgroup and continued enrollment of the remaining 8 Low Dose Group participants (expanded subgroup) to complete enrollment of 10 participants. In order for a timely receipt of a second dose of study product on Day 29, SRC review and approval must occur prior to Study Day 28 for the first sentinel participant in the Low Dose Group. After the Low Dose Group enrollment is completed and both doses have been administered, enrollment will be stopped pending SRC review. After all participants in the Low Dose Group have completed the Day 36 visit, the SRC will review the clinical laboratory, reactogenicity, and adverse event information through the Day 36 visit for all Low Dose Group participants that received two doses. Approval by the SRC will allow dose escalation and initiation of enrollment of the Medium Dose Group sentinel subgroup. The Medium and High Dose sentinel and expanded groups will be enrolled as described above for the Low Dose sentinel and expanded groups, respectively, with the High Dose expanded subgroup enrolling up to 18 individuals. The primary objective of this study is to assess the safety of two doses of DCVC H1 HA mRNA Vaccine administered intramuscularly in healthy adults (18-49 yrs) at dosage levels of 10 mcg, 25 mcg, and 50 mcg.
The purpose of this study is to evaluate whether intramuscular (IM) vaccination with C62-M4 or C1C62-M3M4 in persons with HIV-1 (PWH) on suppressive antiretroviral therapy (ART) will be safe and increase HIV-1-specific T cell responses targeting conserved regions of HIV-1.
This study is a Phase 2 randomized, open-label, non-placebo controlled, multi-site clinical trial that will evaluate two intradermal (ID) regimens for Modified Vaccinia Ankara-Bavarian Nordic (MVA-BN) vaccine compared to the standard subcutaneous (SC) regimen in healthy, vaccinia-naïve adults 18 to 50 years of age, inclusive. At least 210 participants will be enrolled and randomized to one of three study arms. The two dose sparing strategies include one-fifth (2 x 10\^7) and one-tenth (1 x 10\^7) of the standard dose of MVA-BN administered ID on Day 1 and 29 (Arm 1 and 2, respectively). The comparator arm (Arm 3) will be the 2-dose standard (1 x 10\^8) MVA-BN SC regimen. The study will enroll a 1:1:1 randomization allocation. Participants will not be stratified by clinical trial site, demographic characteristics or human immunodeficiency virus (HIV) infection status; however, these data will be collected during screening and enrollment. Each participant may be screened either in a separate visit in the 7 days prior to Day 1 or on Day 1. The primary hypothesis involves a two-step hierarchical process. The study will first test non-inferiority of the 2 x 10\^7 ID regimen relative to 1 x 10\^8 SC (standard dose regimen). If the 2 x 10\^7 ID regimen is non-inferior to the standard dose regimen, hypothesis testing will proceed to test non-inferiority of the 1 x 10\^7 ID regimen relative to the standard dose regimen. The primary objectives are: 1) to determine if peak humoral immune responses following an ID regimen of 2 x 10\^7 50% Tissue Culture Infectious Dose (TCID50) MVA-BN are non-inferior to the licensed regimen of 1 x 10\^8 MVA-BN administered SC; 2) to determine if peak humoral immune responses following an ID regimen of 1 x 10\^7 TCID50 MVA-BN are non-inferior to the licensed regimen of 1 x 10\^8 MVA-BN administered SC.
This is a randomized, double-blind, dose-escalating, outpatient trial in a total of approximately 60 subjects, assigned to 3 cohorts (20 subjects per cohort). Each subject will receive one of three intramuscular (IM) vaccinations, spaced 28 days apart, of Campylobacter jejuni Conjugate Vaccine (CJCV2) with or without a fixed dose of the adjuvant Army Liposome Formulation containing QS-21 (ALFQ)(200 mcg 3D-PHAD, 100 mcg QS-21). Three doses (1 ug, 3 ug and 10 ug) of CJCV2 will be evaluated. The first six participants at each dose will be sentinels and randomized in a 1:1 blinded fashion to receive CJCV2 with or without ALFQ. The primary objective is to evaluate the safety of the three different doses of IM injection of CJCV2 with and without ALFQ. The study hypothesis is that the CJCV2 vaccine alone and CJCV2 with ALFQ adjuvant will be safe and that the CJCV2 alone will be immunogenic, with immunogenicity enhanced through the use of the adjuvant ALFQ.
The purpose of this phase 3, randomized, double-blind, placebo-controlled study is to evaluate the safety and immunogenicity to PXVX0317 in adults ≥65 years of age.
This study is an open-label nonrandomized exploratory proof of concept and descriptive 4-year immunogenicity study to assess immunogenicity after administration of a 2-dose regimen of 9-valent human papillomavirus vaccine (9vHPV) vaccine separated by 12 months (months 0, 12).
The purpose of this study is to assess the safety, tolerability, and immunogenicity of the combined meningococcal groups A, B, C, W and Y (MenABCWY) vaccine (GSK3536819A) intended to protect against invasive meningococcal disease (IMD) caused by all 5 meningococcal serogroups.
Investigators will evaluate the immunogenicity of a third dose of mRNA-1273 SARS-CoV-2 vaccine among cancer patients receiving the recommended third vaccine dose
This is a Phase 1b, randomized, double-blind, dose-escalating, age de-escalating, placebo-controlled study of 200 children, ages 6 months to 17 years. This clinical trial is designed to assess the safety, tolerability/reactogenicity, and immunogenicity of one and two doses of Sing2016 M2SR H3N2 influenza vaccine (manufactured by FluGen) administered intranasally in seven cohorts of children. The study design includes pre-planned Safety Review Committee( SRC) reviews. The first two groups to be vaccinated will be Cohorts 1 and 2. Cohort 1 consists of 45 children 9-17 years old. Thirty of them will receive one dose of the vaccine at a dose of 10\^9 TCID50, and 15 will receive one dose of placebo. Cohort 2 comprises 45 children 2-8 years old. Thirty of them will receive one dose of the vaccine at a dose of 10\^8 TCID50 and 15 will receive one dose of placebo. Cohort 3 consists of 25 children 2-8 years old. 15 of them will receive one dose of vaccine at 10\^9 TCID50 and 10 will receive one dose of placebo. Once 25 participants in Cohort 3 have completed Day 8 of follow-up, similar to Cohorts 1 and 2, the SRC will review to ensure no halting rules are met and if no rules are met, and the SRC determines it is safe to proceed, simultaneous enrollment into Cohorts 4 and 5 can begin. If any halting rules are met or any concerns are raised by the SRC, an external SMC may meet to discuss the data for recommendations on either progression or clinical trial modification before progression to the next cohort. Cohort 4 consists of 25 children 2-8 years old; 15 of them will receive two doses of vaccine at 10\^9 TCID50 and 10 will receive two doses of placebo, with a 28-day interval between the first and second doses. Due to the limited availability of product, and funding to support additional years of enrollment into Cohorts 5, 6, and 7, the decision was made to stop enrollment after the final participant was enrolled into Cohort 4. The primary study objective is to assess the safety and tolerability of one and two administrations of the Sing2016 M2SR H3N2 influenza vaccine at 10\^8 or 10\^9 TCID50 delivered intranasally to healthy participants, 2 to 17 years of age.
This study evaluates an investigational vaccine that is designed to protect humans against infection with respiratory syncytial virus (RSV) and is administered as a nasal spray. Specifically, the study analyzes the safety of, and the immune response to, the vaccine when administered to healthy children between the ages of 6 and 24 months who are seronegative to RSV.
This study evaluates an investigational vaccine that is designed to protect humans against infection with SARS-CoV-2, the novel coronavirus causing COVID-19 disease. The investigational vaccine, MV-014-212, is a live attenuated vaccine against respiratory syncytial virus (RSV) that is expressing the spike (S) protein of SARS-CoV-2. MV-014-212 is administered as drops or a spray in the nose. Specifically, this study analyzes the safety of, and the immune response to, the vaccine when administered to healthy adults between the ages of 18 and 69 years who are seronegative to SARS-CoV-2 and have not received a prior vaccine against COVID-19.
This is a phase 1, open-label, randomized clinical trial in males and non-pregnant females, 18 years of age and older, who are in good health, have no known history of COVID-19 or SARS-CoV-2 infection, and meet all other eligibility criteria. This clinical trial is designed to assess the safety, reactogenicity and immunogenicity of mRNA-1273.351 manufactured by ModernaTX, Inc, given in vaccination schedules alone, sequentially, or coadministered with mRNA-1273. mRNA-1273.351 is a novel lipid nanoparticle (LNP)-encapsulated mRNA-based vaccine that encodes for a full-length, prefusion stabilized S protein of the SARS-CoV-2 B.1.351 variant. Enrollment will occur at approximately five domestic clinical research sites. This study includes two cohorts. Cohort 1 will provide rapid information about the immunogenicity of mRNA-1273.351 in a previously vaccinated group. This cohort can inform near term public health decisions if the variant virus becomes more widespread. Cohort 2 will evaluate different strategies for generation of cross protective immune responses in a naïve population. This cohort will take longer to provide information on the immunogenicity of mRNA-1273.351, but is important to inform future public health strategies. Cohort 1 will include approximately 60 subjects 18 years of age and older who received two vaccinations of mRNA-1273 at dosages of 50 mcg, 100 mcg, or 250 mcg in the Phase 1 clinical trial (DMID 20-0003). Subjects in Cohort 1 will receive a single intramuscular (IM) injection of the designated vaccine and will be followed through 12 months after vaccination. Follow-up visits will occur on Days 8, 15, and 29, as well as 3, 6, and 12 months after the vaccination. Cohort 2 will include approximately 150 participants 18 through 55 years of age who have not received a COVID-19 vaccine, have no known history of COVID-19 or SARS-CoV-2 infection, and do not have underlying conditions that are associated with an increased risk of severe illness from SARS-CoV-2 infection. Enrollment may close before the full 150 participants based on estimates on the timing of immunogenicity results and the need to inform public health decisions. They will be randomly assigned to one of 8 treatment arms and will receive 2 or 3 IM injections of the vaccine and followed through 12 months after the last vaccination. Follow-up visits will occur 7, 14, and 28 days after each vaccination, as well as 3, 6 and 12 months post the last vaccination. The primary objective is to evaluate the safety and reactogenicity of mRNA-1273 and mRNA-1273.351 vaccines, in naïve and previously vaccinated individuals.
The purpose of this study is to assess the safety, reactogenicity, immunogenicity and long-term persistence of immune response up to 3 years following a single dose vaccination of GSK's investigational vaccine RSVPreF3 OA, in adults aged 60 years and above. The study will also evaluate the immunogenicity, safety and reactogenicity of additional vaccine doses given according to different revaccination schedules.
Nine different formulations of the RSVPreF3 OA investigational vaccine were tested in the parent study (NCT03814590). Based on safety and immunogenicity data from the parent study, RSVPreF3 OA investigational vaccine will be evaluated in further clinical research. Participants in selected groups will be invited to participate in this extension study. All participants who will be enrolled in the current extension study will receive the RSV investigational vaccine approximately 18 months after they received their respective dose-2 in the parent study.
This study evaluates an investigational vaccine that is designed to protect humans against infection with respiratory syncytial virus (RSV) and is administered as drops in the nose. Specifically, the study analyzes the safety of, and the immune response to, the vaccine when administered to healthy children between the ages of 15 and 59 months who are seropositive to RSV.
This is a phase I, open-label, dose-ranging clinical trial in males and non-pregnant females, starting at 18 years of age, inclusive, who are in good health and meet all eligibility criteria. This clinical trial is designed to assess the safety, reactogenicity and immunogenicity of mRNA-1273 manufactured by ModernaTX, Inc. mRNA-1273 is a novel lipid nanoparticle (LNP)-encapsulated mRNA-based vaccine that encodes for a full-length, prefusion stabilized spike (S) protein of SARS-CoV-2. Enrollment will occur at up to 3 domestic clinical research sites. Up to one hundred and fifty-five subjects will be enrolled into one of thirteen cohorts (10 micrograms \[mcg\], 25 mcg, 50 mcg, 100 mcg, and 250 mcg). Subjects will receive an intramuscular (IM) injection (0.5 milliliters \[mL\]) of mRNA-1273 on Days 1 and 29 in the deltoid muscle and will be followed through 12 months post second vaccination (Day 394). Follow-up visits will occur 1, 2, and 4 weeks post each vaccination (Days 8, 15, 29, 36, 43, and 57), as well as 3, 6, and 12 months post second vaccination (Days 119, 209, and 394). The primary objective is to evaluate the safety and reactogenicity of a 2-dose vaccination schedule of mRNA-1273, given 28 days apart, across 5 dosages in healthy adults. Optional Substudy: This is an optional third mRNA-1273 vaccination substudy, in subjects 18 years of age and older, who received both the first and second mRNA-1273 vaccinations in the main study and meet all other substudy eligibility criteria. This optional third mRNA-1273 vaccination substudy is designed to assess safety, reactogenicity, and immunogenicity through 12 months post third vaccination (Day 731). Subjects who receive the third mRNA-1273 vaccination will exit the Schedule of Activities for the main study and will enter the Schedule of Activities for the optional substudy. Up to one hundred and twenty subject will be enrolled into two cohorts (consisting of participating subjects who received 2 doses of 25 or 50 mcg and participating subjects who received 2 doses of 100 and 250 mcg). Subjects will receive an IM injection (0.5 mL) at a dosage of 100 mcg/0.5 mL. The primary objective is to evaluate the safety and reactogenicity of a third mRNA-1273 vaccination, at a dosage of 100 mcg.
The primary objective of this study is to evaluate the safety and tolerability of single and multiple intravenous infusions of E2814 in healthy adult participants.
The goal of this study is to explore and evaluate whether a 2-dose schedule of Gardasil 9 among young and mid-adult women 16-45 years of age is generally safe and immunogenic, with an antibody response that is not inferior to that observed of a 3-dose schedule of Gardasil 9 among women aged 16-26 years old. The investigators thought that having a 2-dose vaccination regimen for individuals 16 to 45 would provide a more robust dataset than those of 27 to 45 years old.
MYALEPT™ (metreleptin) has been approved as an adjunct to diet as replacement therapy to treat the complications of leptin deficiency in patients with congenital or acquired generalized lipodystrophy (MYALEPT Prescribing Information). This study is a multicenter, open-label, Phase 4 trial to provide an assessment of the immunogenicity associated with metreleptin and of any major potential risks due to development of antibodies to metreleptin. The study is being conducted to comply with a postmarketing requirement.
This is a single-center, observer-blinded, dosage-escalation trial to evaluate the safety, tolerability, reactogenicity, and immunogenicity of ChAd155-RG compared with RABAVERT in rabies virus-naïve healthy male and non-pregnant female adult subjects ages 18-49. There are 4 dose groups: Group A will receive ChAd155-RG at the lower dosage (5x1010vp) on Day 1, then placebo injections on Days 8, 15, and 22; Group B will receive ChAd155-RG at the higher dosage (1x1011vp) on Day 1, then placebo injections on Days 8, 15, and 22; Group C will receive ChAd155-RG at the higher dosage (1x1011vp) on Days 1 and 15, and placebo injections on Days 8 and 22; Group D will receive RABAVERT at the standard dose (1 mL) on Days 1, 8, and 22, and a placebo injection on Day 15. Since this is a dosage-escalation study, sentinel subjects will be used at each dosage level before non-sentinel subjects will be enrolled. The study will be conducted at Emory University Vaccine and Treatment Evaluation Unit (VTEU). This trial is expected to take approximately 48 months to complete. The duration of each subject's participation is approximately 13 months, from recruitment through the last study visit. The primary objectives of this study are: 1) Assessment of the safety, tolerability, and reactogenicity of one dose of ChAd155-RG at 5x1010vp per dose, or one or two doses of ChAd155-RG at 1x1011vp per dose; 2) Comparison of the safety, tolerability, and reactogenicity of one or two doses of ChAd155-RG, with three doses of RABAVERT.
This is a phase II, randomized, double-blind, active-controlled study to evaluate the safety, immunogenicity, and effect on infant immune responses of a single dose of Tetanus diphtheria acellular pertussis vaccine (Tdap) in pregnant women in Mali. 200 healthy pregnant women, ages 18 through 39 years, inclusive, who meet all eligibility criteria will be randomly allocated in a 2:1 ratio to receive either Tdap (BOOSTRIX) or Tetanus diphtheria toxoid (Td) at 14 0/7 weeks through 26 6/7 weeks estimated Gestational Age (GA). For the fetuses of pregnant subjects, GA will be established by ultrasound, whenever possible, in combination with date of last menstrual period (LMP), when available, and fundal height. Study duration is 21 months: approximately 2 months in the start-up period, 6 months enrolling subjects, and 13 months (3-7 months while pregnant and 6 months postpartum) from last subject vaccinated until she and her infant complete follow-up. The primary objectives of this study are: 1) to assess the safety and tolerability of a single 0.5 mL intramuscular injection of BOOSTRIX in pregnant women; 2) to assess the safety of a single maternal BOOSTRIX vaccination on the fetus and infant; 3) to assess the level of Pertussis Toxin (PT) antibody at birth among infants whose mothers received a single dose of BOOSTRIX or Td while pregnant.
This is a randomized, partially blind, placebo controlled, clinical trial evaluating a single intranasal dose of BPZE1 in healthy adults. The study will evaluate a lyophilized formulation of the product, with the goal of testing for the optimal dose for subsequent clinical trials. Fifty healthy adults, 18-49 years of age will be randomized to one of the four following treatment groups in a 3:3:3:1 ratio: 10\^7 colony forming units (CFU) of BPZE1 administered by VaxINator device, 10\^9 CFU of BPZE1 administered by VaxINator device, placebo administered by VaxINator device, 10\^9 CFU of BPZE1 administered by needleless tuberculin syringe. Study duration will be approximately 12 months with a subject participation duration of approximately 6 months. The primary objective of this study is to assess the safety and tolerability of a single intranasal dose of either 10\^7 or 10\^9 CFU of lyophilized BPZE1 vaccine.
This is a Phase I randomized, double blind, placebo controlled trial in up to 25 males and non-pregnant females, 18-45 years old, inclusive, who are in good health and meet all eligibility criteria. This trial is designed to assess the safety, reactogenicity and immunogenicity of a single intranasal dose of Sendai virus vectored Respiratory Syncytial Virus (SeVRSV) vaccine. The subjects will be randomized in a 4:1 ratio to receive SeVRSV vaccine at a dose of 1 x 10\^7 EID50 or placebo (saline) intranasally. Study duration is approximately 11 months with subject participation duration approximately 6 months. The primary objectives are to: 1) assess the safety and reactogenicity of SeVRSV vaccine following receipt of one intranasal dose; 2) assess the ELISA antibody responses to SeV and to the RSV F protein at 28 days post receipt of one intranasal dose of SeVRSV vaccine; 3) assess the detection of vaccine virus from nasal washes at days 3, 5, 8 and 15 following receipt of one intranasal dose of SeVRSV vaccine.