Active clinical trials for "Zika Virus Infection"

Background: People get Zika virus from infected mosquitos. They usually don t get very sick. But birth defects were reported in babies born to mothers who had Zika infection. In rare cases, people with Zika infection had a nervous system disease that causes severe muscle weakness and can be life threatening. A new vaccine made from DNA in the code for a Zika virus protein could help the body build an immune response against the virus. Objectives: To see if a new vaccine against Zika virus disease is safe and causes any side effects. To study specific immune responses to the vaccine. Eligibility: Healthy people ages 18-50 Design: Participants will be screened with: Medical history Physical exam Urine tests Participants will have 18 visits over 2 years. Participants will be randomly assigned to 1 of 3 groups. All will get 3 vaccines at 3 separate monthly visits. They will receive the vaccine in the upper arm muscle. Some will get it by needle and syringe, others by a device that uses high pressure to push the vaccine through the skin. Vaccine visits last 4-6 hours. Participants will get a thermometer to measure their temperature and a ruler to measure any skin changes at the injection site. They will record this data for 7 days after each injection. Other visits last 1-2 hours. These include: Evaluation of any health changes or problems Blood tests: Some samples may be used for future research. Participants with side effects may have extra visits. ...

Background: The Zika virus is passed to humans by infected mosquitos. It usually causes fever, rash, joint pain, and red eyes. Recently, some cases of microcephaly (abnormally small head) were reported in babies born to mothers infected with the Zika virus. Rare cases of a severe nerve weakness called Guillain-Barr(SqrRoot)(Copyright) syndrome were reported in some people with Zika virus infection. There is currently no cure for or vaccine against the infection. VRC-ZKADNA085-00-VP is a new vaccine that instructs the body to make a small amount of Zika virus protein. The body may use this to build an immune response. Objective: To see if VRC-ZKADNA085-00-VP is safe and causes any side effects. Eligibility: Healthy people ages 18 35 Design: Participants will be screened through a separate protocol with: Medical history Physical exam Lab and urine tests Participants will be randomly assigned to 1 of 4 study groups. They will have about 18 clinic visits over 2 years. Most will occur in the first year, with long-term follow-up visits at months 18 and 24. Visits include a physical exam and blood and urine tests. Participants will have vaccine injections. A high-pressure device pushes the vaccine through the skin and into the muscle of the upper arm. They will have 2-3 injections depending on their group. Vaccine visits last 4-6 hours. Others last 1-2 hours. Participants will keep a diary for 7 days after each injection. They will record their temperature and measure any skin changes at the injection site each day. Participants might have extra visits and blood tests if they have health changes.

The clinical study will assess the safety, tolerability, and immunogenicity of mRNA-1325 in healthy adult subjects.

The purpose of this study is to describe the safety, tolerability and immunogenicity of two doses of purified inactivated Zika virus vaccine (PIZV) given 28 days apart. Three different vaccine doses containing different protein concentrations (2, 5 or 10 microgram [mcg]) each, will be given as 2 dose schedule to flavivirus naive and primed healthy adults. Participants will be followed for 7 days post each dose for tolerability and up to 6 months post dose 2 for safety. Immunogenicity assessment will be performed at 28 days post each dose and 6 months post dose 2. In addition, the selected dose group and control group will be followed till 24 months post dose 2 for safety and persistence of immunity.

This study is randomized, double-blinded, placebo-controlled, Phase 1, dose de-escalation study to evaluate the safety, reactogenicity, and immunogenicity of Alum Adjuvanted Zika Virus Purified Inactivated Vaccine (ZPIV) administered to healthy male and non-pregnant female adult subjects. This study will enroll 90 healthy male and non-pregnant female subjects between the ages of 21 and 49 and will be conducted at Ponce Medical School Foundation, Inc.-CAIMED in Ponce, Puerto Rico. The duration of each subject's participation is approximately 26 months from recruitment through the last study visit. The entire study is expected to take approximately 49 months to complete. Two dose levels will be evaluated. Each subject will receive either placebo or 5 mcg (Group 1) or 2.5 mcg (Group 2) of ZPIV administered by intramuscular (IM) injection on Days 1 and 29. Solicited local and systemic reactogenicity data will be collected from all subjects through Day 8 after each vaccination. All subjects will be monitored for occurrence of unsolicited adverse events until 28 days after the second vaccination. The study will consist of a screening period of up to 28 days, a vaccination period in which subjects will receive a prime dose of vaccine on Day 1 followed by a boost on Day 29, and a follow-up period of 24 months post boost vaccination. Primary objectives are: 1) Assess the safety and reactogenicity of a homologous prime boost regimen of ZPIV given at two different dose levels. 2) Compare the safety and reactogenicity of ZPIV after each vaccination, between dosage groups, and by pre-vaccination flavivirus immune status.

This was a multicenter, randomized study to evaluate the safety, immunogenicity, and efficacy of VRC-ZKADNA090-00-VP (Zika virus wildtype DNA vaccine) or placebo. In Part A, the primary objective was to evaluate the safety and tolerability of the vaccine in different vaccination regimens. In Part B, the primary objectives were to evaluate the safety and efficacy of the vaccine compared to placebo.

Prospective, non-interventional study carried out after culturing placental trophoblastic tissue ex vivo and infection with Zika and Tonate

The purpose of this study is to seek the presence of ZIKV in semen, to determine its localization and to assess the efficiency of spermatozoa processing methods to obtain virus free spermatozoa.

Double blinded, randomized, placebo-controlled, dose finding, multi-center, phase 1 trial in 48 healthy volunteer subjects. After completion of screening procedures, the subjects are randomized to one of four treatment groups (different dosage strengths and placebo) All subjects will receive study treatment at day 0 and will return on day 28. Subjects randomized to treatment groups with two vaccinations will receive a second treatment at day 28. Subjects will return on day 56 for the final visit.

Congenital Zika virus syndrome (SCZv) has been gaining attention in studies due to changes in the central nervous system and in the motor development of children. These changes resulted in an unexpected picture and without future predictability, with the appearance of several functional impairments and also on orthostatic posture. In this context, the protocol of orthostatism proposed here is a 10-week program of the use of a postural adjuster, the standing frame, made of its own with alternative material to the commercial models (cardboard). The use of low cost materials allows these devices to be made in the desired size without cost high, individually adapted, easy to be transported as it is light and can still be colored. It is an equipment that offers the opportunity to experience the orthostatic posture and mainly benefits children with little economic resources that enable the acquisition of traditional devices made of iron or wood and even imported equipment. The postural adjuster allows physical and sensorial opportunity, being an auxiliary resource in standing positioning, feasible for home use, besides being useful for performing functional activities. Thus, the objective will be to analyze the repercussions of the use of the standing frame on body alignment, muscle tone, gross motor function and gastrointestinal functions of children with SCZv. An uncontrolled intervention study will be conducted with children between 12 and 24 months of age, who will undergo an evaluation before use and after the use of the adjunct along with the proposed orthostatism protocol. The postural alignment will be evaluated through photogrammetry and the evaluation of muscle tone will be performed through the modified Tardieu scale. The Gross Motor Function Measure (GMFM) scale will be used to assess the gross motor function of the children involved in the study. Questionnaires will be applied for the collection of maternal socio-demographic data, the child's data, the type and time of therapy that the child already participates, and the gastrointestinal functions. Evaluations will occur in four moments: initial / before use, on the first day of placement in the adjuster, after the first month after use and after the second month of use. For statistical analysis, the Shapiro Wilk Test will be applied to evaluate the normality of the data, and the Friedman or ANOVA tests for repeated samples, to analyze intra-group time factor for the dependent variables of each individual.