NCT02687373

Brief Summary

This study will be conducted in Siaya County in Nyanza Province, western Kenya. Healthy children aged 5 months through 9 years of age living within approximately 10 km of the study clinic(s) (Siaya County Referral Hospital, or Wagai dispensary, a government health facility in Wagai division) will be eligible for participation in Part 1; healthy infants aged 5 months - 12 months inclusive will be eligible for Part 2.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
337

participants targeted

Target at P75+ for phase_1

Timeline
Completed

Started Jul 2016

Typical duration for phase_1

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 9, 2016

Completed
13 days until next milestone

First Posted

Study publicly available on registry

February 22, 2016

Completed
5 months until next milestone

Study Start

First participant enrolled

July 21, 2016

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2018

Completed
13 days until next milestone

Study Completion

Last participant's last visit for all outcomes

August 14, 2018

Completed
Last Updated

April 19, 2019

Status Verified

April 1, 2019

Enrollment Period

2 years

First QC Date

February 9, 2016

Last Update Submit

April 18, 2019

Conditions

Keywords

Plasmodium falciparumPfSPZ Vaccine

Outcome Measures

Primary Outcomes (7)

  • Part 1 - Incidence and type of adverse events (AE)

    Incidence and type of solicited and unsolicited adverse events including breakthrough malaria infections and clinical laboratory assessments (hematological, liver and renal function) will be collected within 28 days after each vaccination. Proportions of participants with AEs and frequencies of individual AEs will be calculated and compared against participants in the same age category and dose group receiving placebo.

    Collected from day of each vaccination until day 28 post vaccination

  • Part 1 - Incidence and type of possibly/probably or definitely related serious adverse events (SAEs)

    Incidence of all hospitalizations, deaths, disabilities caused by at least possibly related SAEs during study participation

    Collected from day of first vaccination until close out visit (28 days for 3 lower doses, 84 days for 2 higher doses)

  • Part 1 - Assessment of Pf-specific antibodies in the different age categories and to the different vaccine doses

    Collection of blood samples for antibodies on day 8 after each vaccination. Following vaccination serum will be taken and an assessment of Plasmodium falciparum (Pf)f-specific antibodies against specific malaria proteins such as the circumsporozoite protein (CSP) PfCSP and whole Pf sporozoites (SPZ) will be determined by enzyme-linked immunosorbent assay (ELISA) and automated immunofluorescence assay (aIFA) respectively.

    Collected 1 week after each vaccination

  • Part 2 - Incidence and type of adverse events in infants 5-12 months of age following administration of PfSPZ Vaccine

    Incidence and type of solicited and unsolicited adverse events including breakthrough malaria infections and clinical laboratory assessments (hematological, liver and renal function) will be collected during 28 days after each vaccination.

    Collected from day of each vaccination until day 28 post vaccination

  • Part 2 - Incidence and type of possibly/probably or definitely related serious adverse events (SAEs) following administration of PfSPZ Vaccine

    Incidence of all hospitalizations, deaths, disabilities caused by at least possibly related to the study product during the 12-month follow-up period.

    Collected from day of first vaccination through the 12-month follow-up period.

  • Part 2 - Assessment of Pf-specific antibodies in infants of 5-12 months to three vaccinations of PfSPZ Vaccine

    Collection of blood samples for antibodies on day 8 after vaccination 1 and 2 and day 15 after the third PfSPZ vaccination. Following vaccination serum will be taken and an assessment of Plasmodium falciparum (Pf)f-specific antibodies against specific malaria proteins such as the circumsporozoite protein (CSP) PfCSP and whole Pf sporozoites (SPZ) will be determined by enzyme-linked immunosorbent assay (ELISA) and automated immunofluorescence assay (aIFA) respectively.

    Collected 1 week after the first and second vaccination and 2 weeks after the third vaccination.

  • Part 2 - Ratio of Pf positive blood smear (+BS) in experimental arm to Pf +BS in placebo arm to determine efficacy of PfSPZ Vaccine during 6 months after last dose

    Efficacy against malaria infection of PfSPZ Vaccine administered to infants 5-12 months of age in 3 doses by passive and active surveillance for naturally acquired Pf infection, measured by blood smear microscopy, during 6 months following the last vaccine dose.

    2 weeks to 6 months after the last vaccine dose

Secondary Outcomes (4)

  • Part 2 - Ratio of Pf +BS in experimental arm to Pf +BS in placebo arm to determine efficacy of PfSPZ Vaccine during 12 months after last dose

    2 weeks to 12 months after the last vaccine dose

  • Part 2 - Ratio of Pf positive PCR in experimental arm to Pf positive PCR in placebo arm to determine efficacy against submicroscopic malaria infection of PfSPZ Vaccine following 6 and 12 months after the last dose

    2 weeks to 6 and 12 months after the last vaccine dose

  • Part 2 - Assessment of Pf-specific antibodies, parasite-specific T cell responses and RNA sequencing.

    Before the first vaccination, 1 week after vaccination 1 and 2, 2 weeks after vaccination 3 and at 6 months and 12 months after the last vaccination

  • Part 2 - Assessment of Pf-specific antibodies, parasite-specific T cell responses and RNA sequencing to determine correlation of immune response with efficacy

    Entire study period

Other Outcomes (3)

  • Ratio of Pf +BS in experimental arm to Pf +BS in placebo arm to determine efficacy against Pf infection at certain parasite thresholds in each study arm

    2 weeks to 12 months after last vaccination

  • Ratio of Pf +BS in experimental arm to Pf +BS in placebo arm to determine efficacy against clinical malaria and malaria hospitalization in each study arm

    2 weeks to 12 months after last vaccination

  • Effect of vaccination on anemia

    6 months and 12 months after last vaccination

Study Arms (30)

Part 1: Grp 1A - PfSPZ Vaccine

EXPERIMENTAL

Children aged 5-9 years (inclusive) of age will be enrolled in this group. N=8; Dose of 4.5 x 10\^5 PfSPZ Vaccine administered DVI, as a single vaccination.

Biological: PfSPZ Vaccine

Part 1: Grp 1A - Normal Saline

PLACEBO COMPARATOR

Children aged 5-9 years (inclusive) of age will be enrolled in this group. N=4; Normal saline administered DVI, as a single vaccination.

Other: Normal Saline

Part 1: Grp 1B - PfSPZ Vaccine

EXPERIMENTAL

Children aged 5-9 years (inclusive) of age will be enrolled in this group. N=8; Two doses of 9.0 x 10\^5 PfSPZ Vaccine administered DVI, 8 weeks apart. The 1st dose will be administered 2 weeks after Grp 1A dose has been shown to be well-tolerated and without safety concerns. The 2nd dose will be administered 8 weeks after the 1st dose in this group does not show any safety signals.

Biological: PfSPZ Vaccine

Part 1: Grp 1B - Normal Saline

PLACEBO COMPARATOR

Children aged 5-9 years (inclusive) of age will be enrolled in this group. N=4; Two doses of normal saline administered DVI, 8 weeks apart. The 1st dose will be administered 2 weeks after Grp 1A dose has been shown to be well-tolerated and without safety concerns. The 2nd dose will be administered 8 weeks after the 1st dose in this group does not show any safety signals.

Other: Normal Saline

Part 1: Grp 1C - PfSPZ Vaccine

EXPERIMENTAL

Children aged 5-9 years (inclusive) of age will be enrolled in this group. N=8; Two doses of 1.8 x 10\^6 PfSPZ Vaccine administered DVI, 8 weeks apart. The 1st dose will be administered 2 weeks after the 1st dose of Grp 1B has been shown to be well-tolerated and without safety concerns. The 2nd dose will be administered 8 weeks after the 1st dose in this group does not show any safety signals.

Biological: PfSPZ Vaccine

Part 1: Grp 1C - Normal Saline

PLACEBO COMPARATOR

Children aged 5-9 years (inclusive) of age will be enrolled in this group. N=4; Two doses of normal saline administered DVI, 8 weeks apart. The 1st dose will be administered after the 1st dose of Grp 1B has been shown to be well-tolerated and without safety concerns. The 2nd dose will be administered 8 weeks after the 1st dose in this group does not show any safety signals.

Other: Normal Saline

Part 1: Grp 2A - PfSPZ Vaccine

EXPERIMENTAL

Children aged 13-59 months (inclusive) of age will be enrolled in this group. N=8; Dose of 1.35 x 10\^5 PfSPZ Vaccine administered DVI, as a single vaccination. This dose will be administered 2 weeks after the 1st dose of Grp 1B has been shown to be well-tolerated and without safety concerns.

Biological: PfSPZ Vaccine

Part 1: Grp 2A - Normal Saline

PLACEBO COMPARATOR

Children aged 13-59 months (inclusive) of age will be enrolled in this group. N=4; Normal saline administered DVI, as a single vaccination. This dose will be administered 2 weeks after the 1st dose of Grp 1B has been shown to be well-tolerated and without safety concerns.

Other: Normal Saline

Part 1: Grp 2B - PfSPZ Vaccine

EXPERIMENTAL

Children aged 13-59 months (inclusive) of age will be enrolled in this group. N=8; Dose of 2.7 x 10\^5 PfSPZ Vaccine administered DVI, as a single vaccination. This dose will be administered 2 weeks after Grp 2A has been shown to be well-tolerated and without safety concerns.

Biological: PfSPZ Vaccine

Part 1: Grp 2B - Normal Saline

PLACEBO COMPARATOR

Children aged 13-59 months (inclusive) of age will be enrolled in this group. N=4; Normal saline administered DVI, as a single vaccination. This dose will be administered 2 weeks after Grp 2A has been shown to be well-tolerated and without safety concerns.

Other: Normal Saline

Part 1: Grp 2C - PfSPZ Vaccine

EXPERIMENTAL

Children aged 13-59 months (inclusive) of age will be enrolled in this group. N=8; Dose of 4.5 x 10\^5 PfSPZ Vaccine administered DVI, as a single vaccination. This dose will be administered 2 weeks after Grp 2B has been shown to be well-tolerated and without safety concerns.

Biological: PfSPZ Vaccine

Part 1: Grp 2C - Normal Saline

PLACEBO COMPARATOR

Children aged 13-59 months (inclusive) of age will be enrolled in this group. N=4; Normal saline administered DVI, as a single vaccination. This dose will be administered 2 weeks after Grp 2B has been shown to be well-tolerated and without safety concerns.

Other: Normal Saline

Part 1: Grp 2D - PfSPZ Vaccine

EXPERIMENTAL

Children aged 13-59 months (inclusive) of age will be enrolled in this group. N=8; Two doses of 9.0 x 10\^5 PfSPZ Vaccine administered DVI, 8 weeks apart. The 1st dose will be administered 2 weeks after Grp 2C has been shown to be well-tolerated and without safety concerns. The 2nd dose will be administered 8 weeks after the 1st dose in this group does not show any safety signals.

Biological: PfSPZ Vaccine

Part 1: Grp 2D - Normal Saline

PLACEBO COMPARATOR

Children aged 13-59 months (inclusive) of age will be enrolled in this group. N=4; Two doses of normal saline administered DVI, 8 weeks apart. The 1st dose will be administered 2 weeks after Grp 2C has been shown to be well-tolerated and without safety concerns. The 2nd dose will be administered 8 weeks after the 1st dose in this group does not show any safety signals.

Other: Normal Saline

Part 1: Grp 2E - PfSPZ Vaccine

EXPERIMENTAL

Children aged 13-59 months (inclusive) of age will be enrolled in this group. N=8; Two doses of 1.8 x 10\^6 PfSPZ Vaccine administered DVI, 8 weeks apart. The 1st dose will be administered 2 weeks after Grp 2D has been shown to be well-tolerated and without safety concerns. The 2nd dose will be administered 8 weeks after the 1st dose in this group does not show any safety signals.

Biological: PfSPZ Vaccine

Part 1: Grp 2E - Normal Saline

PLACEBO COMPARATOR

Children aged 13-59 months (inclusive) of age will be enrolled in this group. N=4; Two doses of normal saline administered DVI, 8 weeks apart. The 1st dose will be administered 2 weeks after Grp 2D has been shown to be well-tolerated and without safety concerns. The 2nd dose will be administered 8 weeks after the 1st dose in this group does not show any safety signals.

Other: Normal Saline

Part 1: Grp 3A - PfSPZ Vaccine

EXPERIMENTAL

Children aged 5-12 months (inclusive) of age will be enrolled in this group. N=8; Dose of 1.35 x 10\^5 PfSPZ Vaccine administered DVI, as a single vaccination. This dose will be administered 2 weeks after Grp 2B has been shown to be well-tolerated and without safety concerns.

Biological: PfSPZ Vaccine

Part 1: Grp 3A - Normal Saline

PLACEBO COMPARATOR

Children aged 5-12 months (inclusive) of age will be enrolled in this group. N=4; Normal saline administered DVI, as a single vaccination. This dose will be administered 2 weeks after Grp 2B has been shown to be well-tolerated and without safety concerns.

Other: Normal Saline

Part 1: Grp 3B - PfSPZ Vaccine

EXPERIMENTAL

Children aged 5-12 months (inclusive) of age will be enrolled in this group. N=8; Dose of 2.7 x 10\^5 PfSPZ Vaccine administered DVI, as a single vaccination. This dose will be administered 2 weeks after Grp 3A has been shown to be well-tolerated and without safety concerns.

Biological: PfSPZ Vaccine

Part 1: Grp 3B - Normal Saline

PLACEBO COMPARATOR

Children aged 5-12 months (inclusive) of age will be enrolled in this group. N=4; Normal saline administered DVI, as a single vaccination. This dose will be administered 2 weeks after Grp 3A has been shown to be well-tolerated and without safety concerns.

Other: Normal Saline

Part 1: Grp 3C - PfSPZ Vaccine

EXPERIMENTAL

Children aged 5-12 months (inclusive) of age will be enrolled in this group. N=8; Dose of 4.5 x 10\^5 PfSPZ Vaccine administered DVI, as a single vaccination. This dose will be administered 2 weeks after Grp 3B has been shown to be well-tolerated and without safety concerns.

Biological: PfSPZ Vaccine

Part 1: Grp 3C - Normal Saline

PLACEBO COMPARATOR

Children aged 5-12 months (inclusive) of age will be enrolled in this group. N=4; Normal saline administered DVI, as a single vaccination. This dose will be administered 2 weeks after Grp 3B has been shown to be well-tolerated and without safety concerns.

Other: Normal Saline

Part 1: Grp 3D - PfSPZ Vaccine

EXPERIMENTAL

Children aged 5-12 months (inclusive) of age will be enrolled in this group. N=8; Two doses of 9.0 x 10\^5 PfSPZ Vaccine administered DVI, 8 weeks apart. The 1st dose will be administered 2 weeks after Grp 3C has been shown to be well-tolerated and without safety concerns. The 2nd dose will be administered 8 weeks after the 1st dose in this group does not show any safety signals.

Biological: PfSPZ Vaccine

Part 1: Grp 3D - Normal Saline

PLACEBO COMPARATOR

Children aged 5-12 months (inclusive) of age will be enrolled in this group. N=4; Two doses of normal saline administered DVI, 8 weeks apart. The 1st dose will be administered 2 weeks after Grp 3C has been shown to be well-tolerated and without safety concerns. The 2nd dose will be administered 8 weeks after the 1st dose in this group does not show any safety signals.

Other: Normal Saline

Part 1: Grp 3E - PfSPZ Vaccine

EXPERIMENTAL

Children aged 5-12 months (inclusive) of age will be enrolled in this group. N=8; Two doses of 1.8 x 10\^6 PfSPZ Vaccine administered DVI, 8 weeks apart. The 1st dose will be administered 2 weeks after Grp 3D has been shown to be well-tolerated and without safety concerns. The 2nd dose will be administered 8 weeks after the 1st dose in this group does not show any safety signals.

Biological: PfSPZ Vaccine

Part 1: Grp 3E - Normal Saline

PLACEBO COMPARATOR

Children aged 5-12 months (inclusive) of age will be enrolled in this group. N=4; Two doses of normal saline administered DVI, 8 weeks apart. The 1st dose will be administered 2 weeks after Grp 3D has been shown to be well-tolerated and without safety concerns. The 2nd dose will be administered 8 weeks after the 1st dose in this group does not show any safety signals.

Other: Normal Saline

Part 2: Group 1 - PfSPZ Vaccine

EXPERIMENTAL

Infants aged 5-12 months (inclusive) of age at vaccination will be enrolled in Part 2. N=104; the highest dose that is determined to be safe and well tolerated in the Part 1 trial, administered in 3 doses by DVI at 0, 8 and 16 weeks. Likely dosage will be 1.8 x 10\^6 PfSPZ per dose.

Biological: PfSPZ Vaccine

Part 2: Group 2 - PfSPZ Vaccine

EXPERIMENTAL

Infants aged 5-12 months (inclusive) of age at vaccination will be enrolled in Part 2. N=104; the second highest dose, which is half of the highest dose, administered in 3 doses by DVI at 0, 8 and 16 weeks. Likely dosage will be 9.0 x 10\^5 PfSPZ per dose.

Biological: PfSPZ Vaccine

Part 2: Group 3 - PfSPZ Vaccine

EXPERIMENTAL

Infants aged 5-12 months (inclusive) of age at vaccination will be enrolled in Part 2. N=104; a lower dose (half of the second highest dose) administered in 3 doses by DVI at 0, 8, 16 weeks. Likely dosage will be 4.5x 10\^5 PfSPZ per dose.

Biological: PfSPZ Vaccine

Part 2: Group 4 - Normal Saline

PLACEBO COMPARATOR

Infants aged 5-12 months (inclusive) of age at vaccination will be enrolled in Part 2. N=104; a placebo arm, will receive normal saline by DVI, 3 times at 8 week intervals.

Other: Normal Saline

Interventions

PfSPZ VaccineBIOLOGICAL

Aseptic, purified, cryopreserved, radiation-attenuated Plasmodium falciparum sporozoites

Part 1: Grp 1A - PfSPZ VaccinePart 1: Grp 1B - PfSPZ VaccinePart 1: Grp 1C - PfSPZ VaccinePart 1: Grp 2A - PfSPZ VaccinePart 1: Grp 2B - PfSPZ VaccinePart 1: Grp 2C - PfSPZ VaccinePart 1: Grp 2D - PfSPZ VaccinePart 1: Grp 2E - PfSPZ VaccinePart 1: Grp 3A - PfSPZ VaccinePart 1: Grp 3B - PfSPZ VaccinePart 1: Grp 3C - PfSPZ VaccinePart 1: Grp 3D - PfSPZ VaccinePart 1: Grp 3E - PfSPZ VaccinePart 2: Group 1 - PfSPZ VaccinePart 2: Group 2 - PfSPZ VaccinePart 2: Group 3 - PfSPZ Vaccine

0.9% Sodium chloride

Part 1: Grp 1A - Normal SalinePart 1: Grp 1B - Normal SalinePart 1: Grp 1C - Normal SalinePart 1: Grp 2A - Normal SalinePart 1: Grp 2B - Normal SalinePart 1: Grp 2C - Normal SalinePart 1: Grp 2D - Normal SalinePart 1: Grp 2E - Normal SalinePart 1: Grp 3A - Normal SalinePart 1: Grp 3B - Normal SalinePart 1: Grp 3C - Normal SalinePart 1: Grp 3D - Normal SalinePart 1: Grp 3E - Normal SalinePart 2: Group 4 - Normal Saline

Eligibility Criteria

Age5 Months - 9 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Healthy children 5 months - 9 years inclusive (Part 1) and healthy infants 5-12 months inclusive (Part 2)
  • HIV negative
  • Able to participate for the duration of the study.
  • Parents/guardians over the age of 18 years able and willing to provide informed consent/permission. The consent/permission will be in writing. For adult parents or guardians who are illiterate, an impartial witness can sign the consent/permission form on behalf of the parent and the parent/guardian will provide a thumb print.

You may not qualify if:

  • Positive HIV test or breastfeeding infants or children of a known HIV positive mother (per Kenyan guidelines, these HIV exposed breastfeeding children should be on cotrimoxazole)
  • Refusal of HIV testing
  • Elevated ALT (liver function test) ≥2x ULN ( ALT \>84 U/L)
  • Abnormal hematological parameters defined as: hemoglobin \< 8 g/dl, WBC \<1500 / mm3, neutrophils \<750/ mm3, platelet count \<75.000/ mm3
  • Abnormal renal function test with creatinine \>0.9 mg/dL
  • Known sickle cell disease and other inherited blood cell disorders like thalassemia and G6PD deficiency
  • Current use of systemic immunosuppressant pharmacotherapy
  • Current significant medical condition (cardiac, hepatic, renal, or hematological) or evidence of any other serious underlying medical condition identified by medical history, physical examination, or laboratory examination
  • History of a splenectomy
  • History of neurologic disorder (including seizures, other than uncomplicated febrile seizures)
  • Known allergy to any component of the vaccine formulation, history of anaphylactic response to mosquito-bites, or known allergy to first or second line anti-malarials used to treat malaria
  • Plan to participate in another investigational vaccine/drug research during or within 1 month of this study end
  • Prior participation in a malaria vaccine trial
  • Participation in the PfSPZ Vaccine Trial Part 1 (for Part 2 only)
  • History of any other illness or condition which, in the investigator's judgment, may substantially increase the risk associated with the subject's participation in the protocol or compromise the scientific objectives
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Center for Global Health Research, KEMRI

Kisian, Siaya County, Kenya

Location

Related Publications (3)

  • Oneko M, Steinhardt LC, Yego R, Wiegand RE, Swanson PA, Kc N, Akach D, Sang T, Gutman JR, Nzuu EL, Dungani A, Kim Lee Sim B, Oloo PN, Otieno K, Bii DK, Billingsley PF, James ER, Kariuki S, Samuels AM, Jongo S, Chebore W, Abdulla S, Daubenberger C, Mpina M, Styers D, Potter GE, Abarbanell G, Richie TL, Hoffman SL, Seder RA. Safety, immunogenicity and efficacy of PfSPZ Vaccine against malaria in infants in western Kenya: a double-blind, randomized, placebo-controlled phase 2 trial. Nat Med. 2021 Sep;27(9):1636-1645. doi: 10.1038/s41591-021-01470-y. Epub 2021 Sep 13.

  • Oneko M, Cherop YR, Sang T, Gutman JR, Wiegand R, Nyang'au EM, Odila AD, Akach D, Hamel MJ, Samuels AM, Kariuki S, Abebe Y, Nzuu EL, Wijayalath W, James ER, Sim BKL, Billingsley PF, Richie TL, Hoffman SL, Seder RA, Steinhardt LC. Feasibility of direct venous inoculation of the radiation-attenuated Plasmodium falciparum whole sporozoite vaccine in children and infants in Siaya, western Kenya. Vaccine. 2020 Jun 15;38(29):4592-4600. doi: 10.1016/j.vaccine.2020.05.008. Epub 2020 May 19.

  • Steinhardt LC, Richie TL, Yego R, Akach D, Hamel MJ, Gutman JR, Wiegand RE, Nzuu EL, Dungani A, Kc N, Murshedkar T, Church LWP, Sim BKL, Billingsley PF, James ER, Abebe Y, Kariuki S, Samuels AM, Otieno K, Sang T, Kachur SP, Styers D, Schlessman K, Abarbanell G, Hoffman SL, Seder RA, Oneko M. Safety, Tolerability, and Immunogenicity of Plasmodium falciparum Sporozoite Vaccine Administered by Direct Venous Inoculation to Infants and Young Children: Findings From an Age De-escalation, Dose-Escalation, Double-blind, Randomized Controlled Study in Western Kenya. Clin Infect Dis. 2020 Aug 14;71(4):1063-1071. doi: 10.1093/cid/ciz925.

MeSH Terms

Conditions

MalariaMalaria, Falciparum

Interventions

Saline Solution

Condition Hierarchy (Ancestors)

Protozoan InfectionsParasitic DiseasesInfectionsMosquito-Borne DiseasesVector Borne Diseases

Intervention Hierarchy (Ancestors)

Crystalloid SolutionsIsotonic SolutionsSolutionsPharmaceutical Preparations

Study Officials

  • Martina Oneko, MD

    Kenya Medical Research Institute, Centre for Global Health Research, Kisumu, Kenya

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 9, 2016

First Posted

February 22, 2016

Study Start

July 21, 2016

Primary Completion

August 1, 2018

Study Completion

August 14, 2018

Last Updated

April 19, 2019

Record last verified: 2019-04

Locations