Safety Study of Dengushield in Healthy Adults

NCT ID: NCT03883620

Last Updated: 2020-02-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-03-22

Study Completion Date

2019-12-23

Brief Summary

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This Phase 1 study to evaluate the safety of a single dose of Dengushield (dengue monoclonal antibody) in healthy adults.

Detailed Description

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This Phase 1 study will evaluate the safety and tolerability of a single dose of Dengushield (dengue monoclonal antibody) in healthy adults in a dose-escalating study design. In addition, pharmacokinetics will also be studied.

Conditions

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Phase 1 Dengue

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

This is a Phase 1, randomized, partially-blind (observer-blind), placebo controlled, single dose ascending study in healthy adults. For the Cohort 1 (Initial Safety Cohort), no placebo control will be used and hence, blinding is not applicable.

There will be 4 dose levels. The proposed doses to be studied are; 1 mg/kg, 3 mg/kg, 12 mg/kg and 25 mg/kg. Total of 40 participants will be dosed and followed till Day 84 from dosing.
Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors
For the Cohort 1 (Initial Safety Cohort), no placebo control will be used and hence, blinding is not applicable.For remaining cohorts, both participant and investigator will be unaware of treatment allocation as well as the laboratories analyzing the biochemistry and hematology parameters, pharmacokinetic and immunogenicity (ADA) samples will be blinded to treatment allocation. The drug administrator will be unblinded who will prepare and administer the study drugs. The 7 day safety data for each cohort will be reviewed by group-wise unblinding. Individual level unblinding will be done only in cases of suspected serious adverse reactions as per the judgement of investigator or medical monitor / sponsor representative.

Study Groups

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Cohort 1 (Initial Safety Cohort) 1 mg/kg

4 participants will be administered Dengushield at 1 mg/kg body weight as Intravenous injection.

Group Type EXPERIMENTAL

Dengushield 1 mg/kg (Cohort 1) intravenous

Intervention Type BIOLOGICAL

Participants will be administered Dengushield 1 mg/kg as slow intravenous injection.

Cohort 2 Experimental 3mg/kg

Initially two participants will be randomized in 1:1 ratio to Dengushield or placebo as a sentinel cohort. If there are no causally related serious safety findings, remaining 10 participants for that cohort will be randomized in 9:1 ratio to Dengushield or placebo.

Group Type EXPERIMENTAL

Dengushield 3 mg/kg (Cohort 2) intravenous

Intervention Type BIOLOGICAL

Participants will be administered Dengushield 3 mg/kg as slow intravenous infusion.

Cohort 2 Placebo 3 mg/kg

Initially two participants will be randomized in 1:1 ratio to Dengushield or placebo as a sentinel cohort. If there are no causally related serious safety findings, remaining 10 participants for that cohort will be randomized in 9:1 ratio to Dengushield or placebo and enrolled.

Group Type PLACEBO_COMPARATOR

Placebo 3 mg/kg (Cohort 2) intravenous

Intervention Type BIOLOGICAL

Participants will be administered Placebo 3 mg/kg as slow intravenous infusion.

Cohort 3 Experimental 7 mg/kg

Initially two participants will be randomized in 1:1 ratio to Dengushield or placebo as a sentinel cohort. If there are no causally related serious safety findings, remaining 10 participants for that cohort will be randomized in 9:1 ratio to Dengushield or placebo.

Group Type EXPERIMENTAL

Dengushield 7 mg/kg (Cohort 3) intravenous

Intervention Type BIOLOGICAL

Participants will be administered Dengushield 7 mg/kg as slow intravenous infusion.

Cohort 3 Placebo 7 mg/kg

Initially two participants will be randomized in 1:1 ratio to Dengushield or placebo as a sentinel cohort. If there are no causally related serious safety findings, remaining 10 participants for that cohort will be randomized in 9:1 ratio to Dengushield or placebo.

Group Type PLACEBO_COMPARATOR

Placebo 7 mg/kg (Cohort 3) intravenous

Intervention Type BIOLOGICAL

Participants will be administered Placebo 7 mg/kg as slow intravenous infusion.

Cohort 4 Experimental 12 mg/kg

Initially two participants will be randomized in 1:1 ratio to Dengushield or placebo as a sentinel cohort. If there are no causally related serious safety findings, remaining 10 participants for that cohort will be randomized in 9:1 ratio to Dengushield or placebo.

Group Type EXPERIMENTAL

Dengushield 12 mg/kg (Cohort 4) intravenous

Intervention Type BIOLOGICAL

Participants will be administered Dengushield 12 mg/kg as slow intravenous infusion.

Cohort 4 Placebo 12 mg/kg

Initially two participants will be randomized in 1:1 ratio to Dengushield or placebo as a sentinel cohort. If there are no causally related serious safety findings, remaining 10 participants for that cohort will be randomized in 9:1 ratio to Dengushield or placebo.

Group Type PLACEBO_COMPARATOR

Placebo 12 mg/kg (Cohort 4) intravenous

Intervention Type BIOLOGICAL

Participants will be administered Placebo 12 mg/kg as slow intravenous infusion.

Interventions

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Dengushield 1 mg/kg (Cohort 1) intravenous

Participants will be administered Dengushield 1 mg/kg as slow intravenous injection.

Intervention Type BIOLOGICAL

Dengushield 3 mg/kg (Cohort 2) intravenous

Participants will be administered Dengushield 3 mg/kg as slow intravenous infusion.

Intervention Type BIOLOGICAL

Placebo 3 mg/kg (Cohort 2) intravenous

Participants will be administered Placebo 3 mg/kg as slow intravenous infusion.

Intervention Type BIOLOGICAL

Dengushield 7 mg/kg (Cohort 3) intravenous

Participants will be administered Dengushield 7 mg/kg as slow intravenous infusion.

Intervention Type BIOLOGICAL

Placebo 7 mg/kg (Cohort 3) intravenous

Participants will be administered Placebo 7 mg/kg as slow intravenous infusion.

Intervention Type BIOLOGICAL

Dengushield 12 mg/kg (Cohort 4) intravenous

Participants will be administered Dengushield 12 mg/kg as slow intravenous infusion.

Intervention Type BIOLOGICAL

Placebo 12 mg/kg (Cohort 4) intravenous

Participants will be administered Placebo 12 mg/kg as slow intravenous infusion.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

1. Healthy adults aged 18-45 years, men, or women.
2. Negative Dengue NS1 at screening indicating no current dengue infection
3. Seronegative for dengue IgG
4. Participants who are willing to comply with the requirements of the study protocol and attend scheduled visit.
5. Participants who give written informed consent.
6. Participants having laboratory parameters within normal range
7. Participants with Body Mass Index (BMI) between 18 to 30 (both inclusive)
8. Satisfactory baseline medical assessment as assessed by physical examination and normal laboratory values or minor variations that is acceptable for study entry.

Exclusion Criteria

1. Presence of acute infection in the preceding 14 days or presence of a temperature ≥ 38.0°C, or acute symptoms of infection greater than of "mild" severity on the scheduled date of first dosing
2. History or presence of clinically significant cardiovascular, respiratory, hepatic, renal, gastrointestinal, neuropsychiatric, autoimmune, dermatologic or immunosuppressive disorders.
3. Evidence of any other significant active haematological disease, or having donated \> 450 mL of blood within the past three months.
4. Evidence or history of substance abuse including alcohol, or previous substance abuse within the last year.
5. Participation or planned participation in a study involving the administration of an investigational compound within the past one month or during this study period.
6. Planned administration of any vaccine not foreseen by the study protocol 4 weeks before and after dosing except for influenza vaccination.
7. Receipt of immunoglobulins and/or any blood products within 9 months of study enrolment or planned administration of any of these products during the study period.
8. Laboratory confirmed infection with hepatitis B virus (HBsAg positive), hepatitis C virus (anti-HCV positive) or human immunodeficiency virus (HIV positive) at screening.
9. History of allergic disease, allergic reactions or known hypersensitivity to any component of the study product (Mild non-medication allergies allowed).
10. Known bleeding disorders.
11. Women who are pregnant, breast-feeding, or considering becoming pregnant.
12. Any condition that, in the opinion of the investigator, would complicate or compromise the study or well-being of the participant.
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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PPD Development, LP

INDUSTRY

Sponsor Role collaborator

Serum Institute of India Pvt. Ltd.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Prasad Kulkarni, MD

Role: STUDY_DIRECTOR

Serum Institute of India Pvt. Ltd.

Locations

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CMAX Clinical Research Pty Ltd

Adelaide, South Australia, Australia

Site Status

Countries

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Australia

References

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Gunale B, Farinola N, Kamat CD, Poonawalla CS, Pisal SS, Dhere RM, Miller C, Kulkarni PS. An observer-blind, randomised, placebo-controlled, phase 1, single ascending dose study of dengue monoclonal antibody in healthy adults in Australia. Lancet Infect Dis. 2024 Jun;24(6):639-649. doi: 10.1016/S1473-3099(24)00030-6. Epub 2024 Feb 23.

Reference Type DERIVED
PMID: 38408457 (View on PubMed)

Other Identifiers

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Dengushield-01

Identifier Type: -

Identifier Source: org_study_id

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