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MalariaPhase 1NCT01540474

Trial of a Falciparum Malaria Protein (FMP012), E. Coli-expressed PfCelTOS, in Healthy Malaria-Naive Adults

A Phase 1 study testing Group 1: 10 ug FMP012 with 2 ug GLA-SE, Group 2: 10 ug FMP012 with 5 ug GLA-SE and 50 ug FMP012 with 5 ug GLA-SE or 2 ug GLA-SE in people with Malaria, run by U.S. Army Medical Research and Development Command at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Malaria has remained a major concern for the US military. During World War II, malaria was the leading cause of disease and non-battle injury with 500-700 men infected per day, resulting in 24,000 malaria-related casualties.(10) Currently, the methods used for protecting troops against malaria are insecticidal nets… Read more about this study

Who is it for?
Ages 18 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Malaria
What is being tested?
Group 1: 10 ug FMP012 with 2 ug GLA-SE, Group 2: 10 ug FMP012 with 5 ug GLA-SE and 50 ug FMP012 with 5 ug GLA-SE or 2 ug GLA-SE
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
36 participants
Where
1 siteUnited States
Study dates
Feb 2012to Dec 2012
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

None listed.

Who cannot join

  • History of malaria infection
  • History of travel to P. falciparum endemic areas in the 3 months prior to day of first vaccination or day of challenge
  • History of receiving a malaria vaccine
  • Receipt of any licensed vaccine within 7 days prior to first vaccination
  • History of receipt of malaria prophylaxis during the 2 months prior to day of first vaccination or day of challenge
  • History of use of any drugs with significant antimalarial activity during the course of the study period
Show all 28Show fewer
  • Prior receipt of any vaccine containing either QS-21, MPL or GLA-SE in the previous 5 years (including Cervarix®, GSK)
  • Use of any investigational or non-registered drug or vaccine within 30 days preceding the first dose of study vaccine or planned use during the study period.
  • Any history of allergic reaction or anaphylaxis to previous vaccination
  • Allergy to kanamycin, nickel, or imidazole Pregnant or lactating female at screening or plans to become pregnant or breastfeed from the time of enrollment until three months after challenge
  • Allergy to antimalarial drugs or use of medications known to interact with both CQ and artemether/lumefantrine
  • Significant (eg, systemic) hypersensitivity reactions to mosquito bites
  • History of sickle cell disease
  • History of psoriasis or porphyria
  • History of splenectomy
  • Any confirmed or suspected immunodeficiency, including HIV infection
  • Administration of chronic (defined as more than 14 days) immunosuppressive drugs or other immune-modifying drugs within six months of vaccination
  • Inhaled and topical steroids are allowed
  • A family history of congenital or hereditary immunodeficiency
  • Acute or chronic, clinically significant, pulmonary, cardiovascular, hepatic, or renal functional abnormality, as determined by history, physical examination, or laboratory evaluation
  • Chronic or active neurologic disease including seizure disorder and chronic migraine headaches
  • Administration of immunoglobulins and/or any blood products within the three months preceding the first dose of study vaccine or any planned administration during the study period
  • Any abnormal baseline laboratory screening tests listed below (normal values are defined in the adverse event section of this protocol):
  • Seropositive for HIV or Hepatitis C virus or HBsAg positive
  • Hepatomegaly, right upper quadrant abdominal pain or tenderness
  • An abnormal baseline screening EKG.
  • Suspected or known current alcohol or drug abuse as determined from the medical history or by physical examination
  • Any other significant finding that in the opinion of the PI would increase the risk of having an adverse outcome from participating in this study

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Clinical Trials Center, WRAIR

    Silver Spring, Maryland, 20910

Other trials in United States

About this study

Official title: Phase 1 Study With the Vaccine Candidate Plasmodium Falciparum Malaria Protein (FMP012), an E.Coli-expressed Cell-Traversal Protein, Administered Intramuscularly in Healthy Malaria-Naive Adults

Malaria has remained a major concern for the US military. During World War II, malaria was the leading cause of disease and non-battle injury with 500-700 men infected per day, resulting in 24,000 malaria-related casualties.(10) Currently, the methods used for protecting troops against malaria are insecticidal nets, clothing, and antimalarial treatment. To be effective, these methods must be self-administered and be used consistently, often unattainable in field or combat situations. The United States Army Medical Research and Development Command (USAMRMC), through the United States Army Medical Materiel Development Activity (USAMMDA) and the Walter Reed Army Institute of Research (WRAIR) are actively pursuing the development of an effective vaccine against P. falciparum malaria; development of such a vaccine is a high priority for the US military and other individuals who travel to endemic regions, and is equally important to populations residing in those areas.

A Phase 1 study using FMP012, a recombinant E.coli expressed malaria protein (CelTOS) vaccine will

  1. assess the safety and reactogenicity of candidate P. falciparum malaria vaccine FMP012/GLA-SE Secondary:
  2. measure the humoral immune response to FMP012/GLA-SE using enzyme-linked immunosorbent assay (ELISA)
  3. assess the protective efficacy of FMP012/GLA-SE against a P. falciparum sporozoite challenge.
Read the detailed description

Single center, non-randomized, open label, dose escalation Phase 1study with sporozoite challenge. The antigen FMP012 will be adjuvanted with Glucopyranosyl lipd A stable emulsion (GLA-SE), a proprietary adjuvant produced by the Infectious Disease Research Institute (IDRI). This is a first-in-human study of FMP012. Thirty subjects, divided into 3 groups (10 subjects per group), will receive 3 doses of the FMP012/GLA-SE vaccine. Group 1 will receive 10 µg of FMP012 formulated with 2 µg GLA-SE adjuvant and Group 2 will receive 10 µg of FMP012 formulated with 5 µg GLA-SE adjuvant. Group 3 will receive 50 µg of FMP012 formulated with either 5 µg GLA-SE adjuvant (Group 3a) or 2 µg GLA-SE adjuvant (Group 3b). Determination of whether to proceed with Group 3a or Group 3b will be made by the principal investigator (PI) and the independent medical monitor after the second vaccination dose in Group 2 has been completed, based on predefined safety and group hold criteria in this protocol. There will be a staggered start for Group 1 and Group 2 separated by a minimum of 14 days. Group 3a or Group 3b will start vaccinations 2 weeks after the second vaccination for Group 2. The first and second vaccination doses in each group will be separated by 28 days and all groups will receive the third vaccination dose on the same day. The second and third vaccination doses in Group 1 will be separated by 84 days, Group 2 by 70 days, and Group 3 by 28 days. Six non-immunized infectivity control subjects will be enrolled prior to the challenge phase. All subjects from the Vaccination Group and Infectivity Control Group will participate in the primary malaria sporozoite challenge and will be required to stay at a hotel for evaluation for a maximum of 10 nights starting 9 days after the challenge. A directly monitored, sequentially allocated, open-label oral regimen of chloroquine or artemether/lumefantrine will be administered to all parasitemic subjects.

Conditions
Malaria
Being tested
Group 1: 10 ug FMP012 with 2 ug GLA-SE, Group 2: 10 ug FMP012 with 5 ug GLA-SE, 50 ug FMP012 with 5 ug GLA-SE or 2 ug GLA-SE, Controlled group-Challenged Only: no vaccination
Keywords
Interference of malaria infection
Medical subject headings
Malaria

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Group 1: 10 ug FMP012 with 2 ug GLA-SEBiological

    Biological/vaccine; E-coli expressed malaria antigen FMP012 adjuvanted with Glucopyranosyl lipid A Stable emulsion (GLA-SE), a proprietary adjuvant

  • Group 2: 10 ug FMP012 with 5 ug GLA-SEBiological

    E-coli expressed antigen FMP012 will be adjuvanted with Glucopyranosyl lipd A stable emulsion (GLA-SE), a proprietary adjuvant

  • 50 ug FMP012 with 5 ug GLA-SE or 2 ug GLA-SEBiological

    E-coli expressed malaria antigen FMP012 adjuvanted with Glucopyranosyl lipd A stable emulsion (GLA-SE), a proprietary adjuvant

  • Controlled group-Challenged Only: no vaccinationOther

    The control group participated in the primary malaria sporozoite challenge.E-coli expressed antigen FMP012 will be adjuvanted with Glucopyranosyl lipd A stable emulsion (GLA-SE), a proprietary adjuvant

Study groups in NCT01540474
Study groupRoleWhat they receive
Group 1: 10 ug FMP012 with 2 ug GLA-SEExperimentalSingle center, non-randomized, open label, dose escalation Phase 1 study with sporozoite challenge. The antigen FMP012 will be adjuvanted with Glucopyranosyl lipd A stable emulsion. This is a first-in-human study of FMP012. 30 subjects, divided into 3 groups, will receive 3 doses of the FMP012/GLA-SE vaccine. Biological/vaccine; E-coli expressed malaria antigen FMP012 adjuvanted with Glucopyranosyl lipid A Stable emulsion (GLA-SE), a proprietary adjuvant
Receives: Biological: Group 1: 10 ug FMP012 with 2 ug GLA-SE
Group 2: 10 ug FMP012 with 5 ug GLA-SEExperimentalBiological/vaccine; E-coli expressed malaria antigen FMP012 adjuvanted with Glucopyranosyl lipid A Stable emulsion (GLA-SE), a proprietary adjuvant
Receives: Biological: Group 2: 10 ug FMP012 with 5 ug GLA-SE
Group 3: 50 ug FMP012 with 5 ug GLA-SE or 2 ug GLA-SEExperimentalBiological/vaccine; E-coli expressed malaria antigen FMP012 adjuvanted with Glucopyranosyl lipid A Stable emulsion (GLA-SE), a proprietary adjuvant
Receives: Biological: 50 ug FMP012 with 5 ug GLA-SE or 2 ug GLA-SE
Control group-Challenged OnlyOtherBiological/vaccine; E-coli expressed malaria antigen FMP012 adjuvanted with Glucopyranosyl lipid A Stable emulsion (GLA-SE), a proprietary adjuvant
Receives: Other: Controlled group-Challenged Only: no vaccination

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants With Solicited or Unsolicited Symptoms Reporting During the Post-vaccination Period

    Number of participants for each dose (1 through 3) that experienced any symptom, general solicited symptoms, and local solicited symptoms

    Measured: From vaccination day through 7 days post vaccination (for all three doses)

  2. Number of Participants With Solicited or Unsolicited Symptoms Reporting During the Post-vaccination Period

    Incidence of erythema and pain (solicited local symptoms) reported after each dose (1-3) of vaccination. Results for groups 1, 2 and 3 only as control group did not receive any vaccinations and only participated in the malaria challenge portion of the study.

    Measured: From vaccination day through 7 days post vaccination for each does (1-3)

  3. Subjects Reporting the Occurrence of Unsolicited Adverse Events Related to Vaccination

    Number of participants with at lease one administered dose presenting with at least one specified symptom within 28 days after vaccination

    Measured: 28 days after each vaccination

Secondary outcomes (2)
  1. Humoral Immune Response to FMP012/GLA-SE

    Seroconversion was defined as a post-second vaccination titer (serum dilution of 1:100) that is 3 standard deviations higher than the average of the negative or pre-vaccination serum measured using enzyme-linked immunosorbent assay (ELISA). Values reported as "below the detection limit" were given a value of 50 units. The safety population was used for immunogenicity analysis. Only subjects who received vaccinations or were challenged were included in the analysis of immunogenicity. Subjects who withdrew from the study had data collected to the point of withdraw.

    Geometric mean titers (GMT) were obtained by first calculating the mean and 95% confidence intervals for log-transformed values of the ELISA results, followed by exponentiation of the values. Among those vaccinated, all values were below the detection limit until post-dose II.

    Measured: Up to 1 year

  2. Time to Onset of Parasitemia Following Sporozoite Challenge

    Protective Efficacy of FMP012/GLA-SE Measured against a P falciparum sporozoite challenge. Vaccinated subjects were compared to infectivity controls to assess for delayed onset of parasitemia. Time of onset of parasitemia was based on the date of sporozoite challenge to the date of first positive blood smear detection.

    Measured: Up to 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Feb 2012 (estimated)
  2. Study startFeb 2012
  3. Primary completionOct 2012
  4. Study completionDec 2012

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01540474
Sponsor's protocol ID
S-11-21
Other IDs
IND 014962
Status last verified
May 2021
First submitted
9 Feb 2012
Last updated
8 Jun 2021
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Group 1: 10 ug FMP012 with 2 ug GLA-SE, Group 2: 10 ug FMP012 with 5 ug GLA-SE and 50 ug FMP012 with 5 ug GLA-SE or 2 ug GLA-SE in people with Malaria, run by U.S. Army Medical Research and Development Command at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 0 inclusion and 28 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Jun 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 8 Jun 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants With Solicited or Unsolicited Symptoms Reporting During the Post-vaccination Period (time frame: From vaccination day through 7 days post vaccination (for all three doses)). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Jun 2021.

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