Study to Evaluate Safety, Tolerability and Pharmacokinetics of IDB-011
Rift Valley Fever
What this study involves
The registry does not currently label this study as recruiting. Ask about its status before planning a screening visit.
- Study type
- Interventional
- Phase
- Phase 1
- Age range
- 18 years - 64 years
- Sex eligible
- All sexes
- Healthy volunteers
- Accepted
- Participants
- 40 Actual
These are starting points, not an eligibility decision. The research team must review the full requirements.
About the research
Phase 1 randomized, double-blind, placebo-controlled trial to evaluate safety, tolerability, pharmacokinetics (PK) and immunogenicity of IDB-011 following intramuscular (IM )administration of single ascending doses to healthy adult participants.
Read the full description
This is a randomized, double blind, placebo-controlled, dose escalation, first-in-human, Phase I clinical trial to assess the safety, tolerability, PK and immunogenicity of IDB-011 in healthy volunteers aged 18-64. IDB-011 is comprised of IDB-774 and IDB-898, which will be administered as separate, consecutive intramuscular injections.
Volunteers will be recruited into sequential dosing cohorts. Within each cohort, eligible volunteers will be randomly allocated (6:2) to receive either IDB-011 or placebo (0.9% normal saline). A sentinel dosing scheme will be employed for the first 2 volunteers in each dosing cohort.
Volunteers will stay in a clinical research unit for up to 4 consecutive days and be followed for up to 1 year.
Who may be able to participate?
The list below is the sponsor’s full registry wording. It can include conditions, prior treatment, test results and other requirements. A match in search does not mean you qualify.
Inclusion Criteria:
- Healthy male or female
- Body mass index (BMI) within 18.0 kg/m2 to 30.0 kg/m\^2, inclusively
- Female participants must not be pregnant, breastfeeding or intend to become pregnant through 1 year post-administration
- Male subjects must agree to not cause pregnancy or donate sperm for 1 year post-administration
- Non-smoker
- Agree to abstain from alcohol for 72 hours and caffeine for 48 hours prior to administration and during the confinement period
- Agree to not donate blood or plasma during study participation
- Agree not to travel to Rift Valley fever virus (RVFV) endemic areas during participation
Exclusion Criteria:
- Known history of RVFV infection
- Previous receipt of RVFV vaccine
- Illness with fever within 5 days prior to administration
- History of malignancy within prior 5 years
- History of significant cardiovascular, pulmonary, gastrointestinal, liver, kidney, hematologic, neurological, psychiatric, endocrine, immunologic, dermatologic disease
- History of hypersensitivity reaction
- History or clinical evidence of alcohol abuse
- Human immunodeficiency virus (HIV) positive
- Hepatitis C virus positive
- Hepatitis B virus positive
- Received immunoglobulin or antibody product within 6 months of administration
- Vaccine within 28 days of administration
- Received investigational agent within 3 months or \< 5 half-lives (whichever is longer) prior to administration
- Donation of plasma, 1 unit or \> 500 mL blood donation in 56 days prior to administration
Treatment, groups and participation
The registry may describe treatments and study duration without a complete visit calendar. Ask the study team for the exact schedule, procedures, risks, costs and alternatives. Keep your usual care plan unless your treating clinician tells you otherwise.
- Assignment
- Random assignment
- Masking
- Quadruple masked
Experimental: IDB-011 Cohort 1
IDB-011 dose level 1
Drug: IDB-011 dose level 1
Experimental: IDB-011 Cohort 2
IDB-011 dose level 2
Drug: IDB-011 dose level 2
Experimental: IDB-011 Cohort 3
IDB-011 dose level 3
Drug: IDB-011 dose level 3
Experimental: IDB-011 Cohort 4
IDB-011 dose level 4
Drug: IDB-011 dose level 4
Experimental: IDB-011 Cohort 5
IDB-011 dose level 5
Drug: IDB-011 dose level 5
Comparator: Placebo
Normal saline
Other: Placebo
IDB-011 dose level 1 DRUG
IDB-774 + IDB-898
IDB-011 dose level 2 DRUG
IDB-774 + IDB-898
IDB-011 dose level 3 DRUG
IDB-774 + IDB-898
IDB-011 dose level 4 DRUG
IDB-774 + IDB-898
IDB-011 dose level 5 DRUG
IDB-774 + IDB-898
Placebo OTHER
Normal saline
What researchers are measuring
Outcome measures describe what is being studied. They are not proof that a treatment works.
Primary measures
Evaluation of safety and tolerability
Time frame: Through 1 year from administration
Safety to be measured via occurrence and severity of adverse events
Secondary measures
Characterize pharmacokinetic profile
Time frame: Through 1 year from administration
Concentration in serum over time
Evaluate immunogenicity
Time frame: Through 1 year from administration
Measurement of IDB-011 neutralizing antibodies in serum
Review the complete result tables and limitations in the official record.
Open official results ↗Research locations (1)
The overall study status and a local site’s status can differ. Confirm that location’s availability before traveling.
1 locations
Altasciences Clinical Los AngelesCypress, California, United StatesStatus unknown
Study team and timeline
- Lead sponsor
- IDBiologics, Inc.
- Study start
- Apr 2, 2025 Actual
- Primary completion
- Oct 30, 2026 Actual
- Study completion
- Oct 30, 2026 Actual
- First posted
- Apr 13, 2025 Actual
- Last updated
- Nov 10, 2026 Actual
Official study contacts
No central contact is listed. Check the locations and the official record.
Official study title
A Randomized, Double-blind, Placebo-controlled Study to Assess the Safety Tolerability and Pharmacokinetics of IDB-011 (IDB-774+IDB-898) in Healthy Adults
Ask Wellness Clinical Research
Your message goes to WCR, including when this study is run by another organization. WCR may offer general guidance but may not operate this trial, have access to its team or be able to enroll you.
Source: ClinicalTrials.gov API v2. Information is submitted by sponsors and investigators. NLM does not approve the safety or science of all listed studies. Registry disclaimer.
Retrieved: Nov 11, 2026 · Last registry update: Nov 10, 2026
