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Healthy VolunteersPhase 1NCT03115996

Study of the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of REGN3918 in Healthy Volunteers

A Phase 1 study testing REGN3918 in people with Healthy Volunteers, run by Regeneron Pharmaceuticals at 1 site in United Kingdom.

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

To evaluate the safety and tolerability of single ascending intravenous (IV) and subcutaneous (SC) doses and a multiple dose regimen. Read more about this study

Who is it for?
Ages 18 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Healthy Volunteers
What is being tested?
REGN3918
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
56 participants
Where
1 siteUnited Kingdom
Study dates
10 May 2017to 31 Aug 2018
Phase
Phase 1
Are there results?
None posted in the registry

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

  • A subject must meet the follow criteria to be eligible for inclusion in the study:
  • Males and females from 18 to 50 years of age.
  • Subject is judged to be in good health based on medical history, physical examination, vital sign measurements and laboratory safety tests performed at screening and/or prior to administration of initial dose of study drug
  • The subject has a body mass index less than 30 kg/m2
  • Willingness to undergo vaccination and antibiotic prophylaxis against N. meningitides.

Who cannot join

  • A subject who meets any of the following criteria will be excluded from the study:
  • Any clinically significant physical examination abnormalities observed during the screening visit.
  • Hospitalization for any reason within 30 days of the screening visit
  • Persistent chronic or active recurring infection requiring treatment with antibiotics, antivirals, or antifungals.
  • Subject has a history of meningococcal infection.
  • Carriers of Neisseria meningitides based on cultures from naso-pharyngeal swabs during screening.
Show all 17Show fewer
  • Subject has had a splenectomy.
  • Known allergy to penicillin class antibiotics
  • Known or suspected complement deficiency, or abnormal complement C3, C4 or CH50 during screening.
  • Recent (within the previous 2 months) bacterial, protozoal, viral or parasite infection requiring systemic treatment.
  • History of tuberculosis or systemic fungal diseases
  • HIV infection or HIV seropositivity at the screening visit
  • Positive HBsAg, HBcAb, or hepatitis C antibody at the screening visit
  • History of malignancy (except non-melanoma skin cancer or cervical in-situ)
  • Pregnant or breastfeeding women
  • Women of childbearing potential and men who are unwilling to practice highly effective contraception prior to the initial dose/start of the first treatment, during the study, and for at least 6 months after the last dose
  • Note: Other protocol defined Inclusion/Exclusion criteria may apply

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Covance Clinical Research Unit (CRU) Ltd.

    Leeds, LS2 9LH

Other trials in United Kingdom

About this study

Official title: A Randomized, Double-blind, Placebo-controlled, Single Ascending Dose and Multiple Dose Study of the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Intravenously and Subcutaneously Administered Human Monoclonal Antibody REGN3918 in Healthy Volunteers.

To evaluate the safety and tolerability of single ascending intravenous (IV) and subcutaneous (SC) doses and a multiple dose regimen.

Read the detailed description

Participants will be randomized to single IV or SC or multiple dose treatment with REGN3918 or matched placebo.

Being tested
REGN3918, Placebo

What participants receive

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

  • REGN3918Drug

    Intravenous (IV) or Subcutaneous (SC)

  • PlaceboDrug

    Matching Placebo

Study groups in NCT03115996
Study groupRoleWhat they receive
REGN3918 (Cohorts 1-4 & 6a)ExperimentalCohorts 1-4 and 6a will receive sequential ascending doses of REGN3918
Receives: Drug: REGN3918
Placebo (Cohorts 1-4 & 6a)ExperimentalCohorts 1-4 and 6a will receive placebo
Receives: Drug: Placebo
REGN3918 (Cohort 5 & 6b)ExperimentalCohort 5 and 6b will receive multiple doses of REGN3918
Receives: Drug: REGN3918
Placebo (Cohort 5 & 6b)ExperimentalCohort 5 and 6b will receive placebo
Receives: Drug: Placebo

What is being measured

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

  1. Incidence of treatment emergent adverse events (TEAEs)

    Measured: Up to 20 weeks

  2. Severity of TEAEs

    Measured: Up to 20 weeks

Secondary outcomes (5)
  1. Pharmacokinetic profile of REGN3918; single dose IV and SC

    Assessed via serum concentrations of REGN3918 over time; Area under the Curve (AUC)

    Measured: Up to 20 weeks

  2. Pharmacokinetic profile of REGN3918; single dose IV and repeated SC doses

    Assessed via serum concentrations of REGN3918 over time; peak concentration Cmax

    Measured: Up to 20 weeks

  3. Pharmacodynamics profile of REGN3918

    Assessed by CH50 assay over time

    Measured: Up to 20 weeks

  4. Pharmacokinetic exploratory analysis

    Peak concentration Cmax

    Measured: Up to 20 weeks

  5. Immunogenicity of REGN3918

    Assessed by measurement of anti-drug antibodies (ADA)

    Measured: Up to 20 weeks

Timeline

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

  1. First posted14 Apr 2017
  2. Study start10 May 2017
  3. Primary completion31 Aug 2018
  4. Study completion31 Aug 2018

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
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
56 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03115996
Sponsor's protocol ID
R3918-HV-1659
Other IDs
2016-004208-70, 2016
Status last verified
Sep 2018
First submitted
5 Apr 2017
Last updated
26 Sep 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Devalaraja-Narashimha K, Ehmann PJ, Huang C, Ruan Q, Wipperman MF, Kaplan T, Liu C, Afolayan S, Glass DJ, Mellis S, Yancopoulos GD, Hamilton JD, MacDonnell S, Hamon SC, Boyapati A, Morton L. Association of complement pathways with COVID-19 severity and outcomes. Microbes Infect. 2023 May;25(4):105081. doi: 10.1016/j.micinf.2022.105081. Epub 2022 Dec 7.

    PubMed 36494054

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing REGN3918 in people with Healthy Volunteers, run by Regeneron Pharmaceuticals at 1 site in United Kingdom.

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 5 inclusion and 17 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 26 Sep 2018. 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 Kingdom. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Incidence of treatment emergent adverse events (TEAEs) (time frame: Up to 20 weeks). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03115996, which also lists 1 linked publication.

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 26 Sep 2018.

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