ClinicalTrials.gg
Enrolling by invitationNCT02051062Updated Jan 16, 2026

BT-011 Pharmacokinetics of Botulism Antitoxin Heptavalent in Pediatric Patients

A Phase 4 interventional study of Blood sample collection in Botulism, sponsored by Emergent BioSolutions. Enrolling by invitation. Open to participants aged 1 Day to 11 Years. Per ClinicalTrials.gov, last updated 2026-01-16.

Sponsored by Emergent BioSolutions · Phase 4, Interventional, and Basic science

Phase
Phase 4
Study type
Interventional
Enrollment
10
Allocation
Not applicable
Ages
1 Day to 11 Years
Sex
All
01

Study summary

The purpose of this study is to verify the pediatric dosing recommendations for BAT product in pediatric patients that are treated with BAT product due to a confirmed or suspected case of botulism. A minimum of one serum sample should be collected but whenever feasible additional serum samples (up to three per enrolled participant) may be collected from the participant or obtained from surplus standard of care samples, if available, within 32 hours after BAT product administration. Safety of the BAT product will also be evaluated. Emergent will follow-up with the physician by telephone after 30 days post-BAT product administration to collect AEs, SAEs, and unanticipated events.

Read the detailed description

Primary Objective: To collect blood from pediatric participants to analyze the pharmacokinetics (PK) of BAT product to verify the current US FDA-approved pediatric dosing recommendations for BAT product.

Safety Objective: To evaluate the safety of BAT product in pediatric participants.

Protocol Design: This is a single arm, multi-site PK study in pediatric patients treated with BAT product.

Pharmacokinetic Parameters: The serum concentrations of BAT product obtained will be modeled using a population PK approach based on a previously developed model for BAT serotypes A through G in healthy adult human participants.

Safety Endpoints: The incidence of adverse events (AEs), serious adverse events (SAEs), and adverse events of special interest (AESI) that occur within 30 days after BAT product administration. In this study hypersensitivity/allergic reactions including serum sickness, febrile reactions, and hemodynamic instability and bradycardia, as well as reports of an infectious disease transmission will be included as AESI.

02

Conditions studied

  • Botulism

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Keywords

  • Pharmacokinetics
  • BAT
  • Pediatric
03

In context

Botulism

20 studies on the registry are indexed under Botulism; 3 are open to participants now.

This study's planned enrollment of 10 is below the median of 29 across 14 interventional studies indexed under Botulism.

Browse Botulism studies →

Lead sponsor

Emergent BioSolutions is the lead sponsor of 47 studies on the registry; 7 are open to participants now.

Of its 11 completed or terminated interventional studies of FDA-regulated products, 7 (64%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
1 Day to 11 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Legally authorized representative is able and willing to voluntarily provide and patients to provide assent, if applicable.
  2. Pediatric participants (age groups: birth to \<two years, two to \<six years, and six to \<12 years).
  3. Treatment with BAT product (initial dose only).
  4. Blood sample can be collected (or standard of care sample scavenged) within 32 hours of completion of BAT product infusion.

Exclusion criteria

Exclusion Criteria:

  1. If the 5 mL blood sample volume is deemed, at the discretion of the investigator, to be unsafe based on patient weight or condition of health.
  2. History of treatment with BabyBIG or other botulism antitoxin within the past 90 days.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

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05

Study design

Phase
Phase 4
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
10 participants (estimated)

Study arms

  • Experimental
    Blood sample collection

    One to three 5 mL blood samples will be collected from pediatric participants treated with BAT product ideally 6-24 hours after administration, but within a maximum of 32 hours after administration.

    Biological: Blood sample collection

Interventions

  • BiologicalBlood sample collection

    One to three 5 mL blood samples will be collected from pediatric participants treated with BAT product ideally 6-24 hours after administration but within a maximum of 32 hours after administration.

06

What researchers measure

Primary outcomes

  1. Margin of PK Equivalence for 90% Survival

    Margin of PK equivalence (MOE) for 90% survival relative to the healthy adult PK model, calculated to verify the appropriateness of administered pediatric dose. All collected samples of sufficient volume will be used provided both the BAT dosing time and sample collection time are known, even if outside the 32 hour collection window.

    Time frame: ideally up to 32 hours post-BAT product administration

Secondary outcomes

  1. Area Under Concentration Curve From Time 0 to Last Measurable Concentration [AUC0-t]

    Pharmacokinetic Parameter: Estimated area under the serum concentration-time curve from time 0 to the last measurable serotype A concentration \[AUC0-t\]. All collected samples of sufficient volume will be used provided both the BAT dosing time and sample collection time are known, even if outside the 32 hour collection window.

    Time frame: ideally up to 32 hours post-BAT product administration

  2. Area Under Concentration Curve From Time 0 to Infinity [AUC0-inf]

    Pharmacokinetic Parameter: Estimated area under the serum concentration-time curve from time 0 to infinity \[AUC0-inf\]. All collected samples of sufficient volume will be used provided both the BAT dosing time and sample collection time are known, even if outside the 32 hour collection window.

    Time frame: ideally up to 32 hours post-BAT product administration

  3. Between Subject Variability [BSV]

    Pharmacokinetic Parameter: Between subject variability \[BSV\]. All collected samples of sufficient volume will be used provided both the BAT dosing time and sample collection time are known, even if outside the 32 hour collection window.

    Time frame: ideally up to 32 hours post-BAT product administration

  4. Maximum Serum Serotype A Concentration [Cmax]

    Pharmacokinetic Parameters: Estimated maximum serum serotype A concentration \[Cmax\]. All collected samples of sufficient volume will be used provided both the BAT dosing time and sample collection time are known, even if outside the 32 hour collection window.

    Time frame: ideally up to 32 hours post-BAT product administration

  5. Systemic Clearance [CL]

    Pharmacokinetic Parameters: Estimated systemic clearance \[CL\]. All collected samples of sufficient volume will be used provided both the BAT dosing time and sample collection time are known, even if outside the 32 hour collection window.

    Time frame: ideally up to 32 hours post-BAT product administration

  6. Intercompartmental Clearance [CLd]

    Pharmacokinetic Parameters: Estimated intercompartmental clearance \[CLd\]. All collected samples of sufficient volume will be used provided both the BAT dosing time and sample collection time are known, even if outside the 32 hour collection window.

    Time frame: ideally up to 32 hours post-BAT product administration

  7. Central Volume of Distribution [Vc]

    Pharmacokinetic Parameters: Estimated central volume of distribution \[Vc\]. All collected samples of sufficient volume will be used provided both the BAT dosing time and sample collection time are known, even if outside the 32 hour collection window.

    Time frame: ideally up to 32 hours post-BAT product administration

  8. Peripheral Volume of Distribution [Vp]

    Pharmacokinetic Parameters: Estimated peripheral volume of distribution \[Vp\]). All collected samples of sufficient volume will be used provided both the BAT dosing time and sample collection time are known, even if outside the 32 hour collection window.

    Time frame: ideally up to 32 hours post-BAT product administration

Other outcomes

  1. Safety: AEs

    Number of AEs that occur within 30 days after BAT product administration

    Time frame: Day 1 to Day 30

  2. Safety: SAEs

    Number of SAEs that occur within 30 days after BAT product administration

    Time frame: Day 1 to Day 30

  3. Safety: AESI

    Number of AESI that occur within 30 days after BAT product administration

    Time frame: Day 1 to Day 30

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Richardson JS, Parrera GS, Astacio H, Sahota H, Anderson DM, Hall C, Babinchak T. Safety and Clinical Outcomes of an Equine-derived Heptavalent Botulinum Antitoxin Treatment for Confirmed or Suspected Botulism in the United States. Clin Infect Dis. 2020 Apr 15;70(9):1950-1957. doi: 10.1093/cid/ciz515. PubMed 31209461 ↗
  • Parrera GS, Astacio H, Tunga P, Anderson DM, Hall CL, Richardson JS. Use of Botulism Antitoxin Heptavalent (A, B, C, D, E, F, G)-(Equine) (BAT(R)) in Clinical Study Subjects and Patients: A 15-Year Systematic Safety Review. Toxins (Basel). 2021 Dec 27;14(1):19. doi: 10.3390/toxins14010019. PubMed 35050996 ↗
  • Beliveau M, Anderson D, Barker D, Kodihalli S, Simard E, Hall C, Richardson JS. Exposure-Response Modeling and Simulation to Support Human Dosing of Botulism Antitoxin Heptavalent Product. Clin Pharmacol Ther. 2022 Jul;112(1):171-180. doi: 10.1002/cpt.2620. Epub 2022 May 16. PubMed 35467014 ↗
  • Rao AK, Sobel J, Chatham-Stephens K, Luquez C. Clinical Guidelines for Diagnosis and Treatment of Botulism, 2021. MMWR Recomm Rep. 2021 May 7;70(2):1-30. doi: 10.15585/mmwr.rr7002a1. PubMed 33956777 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Oct 2014 (actual). Primary completion is estimated for Jul 2028, 165 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 29, 2014
First posted
Jan 31, 2014
StartActual
Oct 2014
Primary completionEst.
Jul 31, 2028
CompletionEst.
Jul 31, 2028
Last update
Jan 16, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 16, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02051062
Responsible party
Sponsor
First posted
Jan 31, 2014
Start date
Oct 2014
Primary completion
Jul 31, 2028 (estimated)
Completion
Jul 31, 2028 (estimated)
Last update
Jan 16, 2026

Study contacts

Clinical Development Representative
study director · Emergent BioSolutions

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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