ClinicalTrials.gg
CompletedNCT00448253Updated Mar 15, 2024

Safety and Pharmacokinetic Study of Anthrax Immune Globulin Derived From Human Serum

A Phase 1 interventional study of NP-015 in Symptoms of Inhalational Anthrax, sponsored by Emergent BioSolutions. Completed at 1 site in United States. Open to participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-03-15.

Sponsored by Emergent BioSolutions · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
92
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
01

Study summary

The purpose of the study is to assess the pharmacokinetics of three doses of NP-015 (210, 420 or 840 units TNA) in healthy volunteers. To evaluate the safety of NP-015 based on adverse events and laboratory assessments. To determine the dose proportionality relation of three different doses of NP-015.

Read the detailed description
  • The test product is Anthrax Immune Globulin Intravenous (Human), NP-015.
  • The product is supplied as a sterile liquid suitable for IV administration.
  • Product potency is expressed in units of anthrax toxin neutralization assays(TNA) per vial.
  • This study is a phase 1, placebo controlled, dose-ranging study in healthy volunteers. Subjects will receive one of three NP-015 doses (210, 420 or 840 units TNA) or equal volumes of saline placebo.
  • Enrolment will be sequential, starting at the lowest NP-015 dose with accrual into the next higher dose after all patients at the lower dose have been treated.
  • The first 3 Cohorts: The Subjects will be recruited in cohorts of 24, with placebo controls included in each dosing group. In each cohort, subjects will be randomized to receive either NP-015 (N = 18/dosing group) or placebo (N = 6/dosing group). For Cohort 4: 20 Subjects will be recruited and dosed at the highest dose with 2 additional product lots (10 subjects per lot).

Plasma samples will be drawn over 84 days. Plasma will be tested for anti-anthrax antibodies by a protective antigen (anti-PA) ELISA and toxin neutralization assay (TNA).

  • Serological testing for HIV, HBV and HCV will be conducted at screening to determine eligibility. Nucleic acid amplification testing (NAT) and serological testing for HIV, HBV and HCV will be conducted at baseline (day -1) and at the final visit (day 84 or early withdrawal). NAT for parvovirus B19 will be conducted at baseline (day -1), day 14, and the final visit (day 84 or early withdrawal).
  • Safety data will be collected throughout the 84-day study.

Screening (within 28 days prior to Baseline):

  • Informed consent
  • Review of admission criteria
  • Medical history, general physical examination, vital signs, electrocardiogram and concomitant medications will be recorded
  • Hematology, blood chemistry, urinalysis, viral serology (anti-HIV-1/2, Anti-HCV, HBsAg, anti-HBc)
  • Serum pregnancy test for all female subjects
  • Drug screen (urine)
  • Blood collection for anti-PA antibody and toxin neutralization assay (TNA) assessment

Baseline (Day -1, within 24 hours prior to Day 0)

  • Review of admission criteria
  • Assessment of brief physical exam, vital signs, weight, hematology, blood chemistry, urinalysis, and concomitant medications
  • Assessment of haptoglobin and free hemoglobin levels
  • Update of medical history
  • NAT testing for HIV, HBV, HCV and parvovirus B19, and serological testing for HIV, HBV and HCV
  • Serum pregnancy test for all female subjects
  • Alcohol (urine) and drug screen (urine)
  • Blood collection for baseline anti-PA antibody and TNA assessment
  • Subjects will be required to stay overnight following their baseline assessment

NP-015 Administration (day 0)

  • Following baseline assessment, NP-015 will be administered intravenously
  • Urinalysis will be performed at the end of the infusion period (appearance and color, specific gravity, protein, glucose, pH, occult blood, ketones, microscopic examination)

Assessments following the completion of NP-015 administration (1, 3 and 8 hrs; days 1, 3, 5, 7, 9, 11, 14, 21, 28, 42, 56 and 84 or early withdrawal)

  • Following NP-015 administration, blood will be collected for anti-PA antibody ELISA analysis and TNA assessment at each of the respective times.
  • Assessment of vital signs, adverse events and concomitant medications.

Additional Assessments:

  • Days 1, 3, 7, 14, 28 and 84 or early withdrawal: Assessment of hematology, blood chemistry and urinalysis.
  • Day 1: Assessment of haptoglobin and free hemoglobin levels.
  • Day 14: NAT for parvovirus B19.
  • Day 28: serum pregnancy test for female subjects.
  • Final (day 84 or early withdrawal) visit: a general physical exam, serum pregnancy test for female subjects, and viral marker testing (NAT for HBV, HCV, HIV and parvovirus B19, and serology for HIV, HBV and HCV) will be performed.

For Cohort 4 there will be no anti anthrax antibody testing and the subjects will be assessed for safety only, up to day 28.

02

Conditions studied

  • Symptoms of Inhalational Anthrax

Keywords

  • Inhalational Anthrax
  • Human Immune globulin
03

In context

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
18 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

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

  • Male or female
  • Age 18/19 (dependent on local age of majority) - 55 years
  • of 19 - 29
  • For female subjects that are not surgically sterilized, willingness to use an effective method of throughout the trial including:
  • Using hormonal contraception (oral, injectable or implant) continuously for 3 months prior to the start of the trial and willing to continue to use hormonal contraception throughout the entire trial.
  • IUD inserted at least 3 months prior to dosing.
  • For female subjects who are \< 2 years an FSH ≥ 40 mIU/mL must be obtained. If the FSH is \< 40 mIU/mL the subject must agree to use an acceptable form of contraception (see above).
  • For males that have not had a vasectomy, willingness to use a condom with spermicide for the duration of the study. Also, male subjects must not donate sperm for the duration of the study.
  • Normal and healthy as determined by medical history, physical exam, , vital signs and laboratory tests of liver, kidney and hematological functions
  • Written

Exclusion criteria

Exclusion Criteria:

  • Heavy smokers (>10 cigarettes/day) or individuals using smokeless tobacco or nicotine containing products
  • Use of any product within the past 30 days
  • Recipient of any blood product within the past 12 months
  • Plasma donation within 7 days or significant blood loss or blood donation within 56 days of baseline
  • Females with a level \< 12 g/dL
  • Males with a hemoglobin level \< 13 g/dL
  • History of to blood products
  • History of allergy to latex or rubber
  • History of IgA deficiency
  • Pregnancy or lactation
  • Positive serology test for or , positive test for as determined by HBsAg.
  • History of, or suspected substance abuse problem (including alcohol)
  • Failure of drug test at screening or baseline
  • Failure of alcohol test at baseline or consumption of alcoholic beverages within 48 hours of baseline
  • History of anthrax vaccination with AVA or any other anthrax vaccine
  • Individuals with planned medical procedures that will occur during the study
  • Use of prescription medications within 7 days prior to baseline, or anticipated use during the study (with the exception of hormonal for females)
  • Use of over-the-counter, herbal medications or vitamins within 7 days of study admission
  • An opinion of the investigator that it would be unwise to allow participation of the subject in the study
Terms in these criteria, in plain language(11)

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.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

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.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
92 participants (actual)

Study arms

  • Experimental
    1

    Three Cohorts evaluating three dosage levels: 210, 420 or 840 units TNA. And a Fourth Cohort at 840 units TNA with 2 additional product lots.

    Biological: NP-015

  • Placebo comparator
    2

    Saline (equal volume to 210 U, 420 U, or 840 U TNA dose)

    Biological: NP-015

Interventions

  • BiologicalNP-015

    Three Cohorts evaluating three dosage levels: 210, 420 or 840 units TNA, or placebo. And a Fourth Cohort at 840 units TNA with 2 additional product lots.

    Also known as: Anthrax Immune Globulin (AIG)

06

What researchers measure

Primary outcomes

  1. Anti-PA antibody and TNA for PK analyses.

    Time frame: screen, baseline, and D0 hours 1,3,8 and day(s) 1,3,5,7,9,11,14,21,28,42,56 and 84

Secondary outcomes

  1. Viral Markers for safety.

    Time frame: screen, baseline, and Day(s)14 and 84

  2. Dose proportionality analyses.

    Time frame: screen, baseline, and D0 hours 1,3,8 and day(s) 1,3,5,7,9,11,14,21,28,42,56 and 84

  3. Blood Chemistry

    Time frame: screen, baseline, and D0 hours 0,1,2 and day(s) 1,3,7,14,28, and 84

  4. Urinalysis

    Time frame: screen, baseline, and D0 hours 0 and day(s) 1,3,7,14,28, and 84

  5. Hematology (haptoglobin and free hemoglobin at baseline and day 1)

    Time frame: screen, baseline, Day(s) 1,3,7,14,28, and 84

07

Study locations

1 site
  • MDS Pharma Services
    Lincoln, Nebraska 68502, United States
08

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Jul 2007, a primary completion of Aug 2008 and a completion of Sep 2008. It does not say whether these dates are actual or estimated.

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

Registered
Mar 14, 2007
First posted
Mar 16, 2007
Start
Jul 2007
Primary completionActual
Aug 2008
CompletionActual
Sep 2008
Last update
Mar 15, 2024
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 Mar 15, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00448253
Collaborators
Department of Health and Human Services
Responsible party
Sponsor
First posted
Mar 16, 2007
Start date
Jul 2007
Primary completion
Aug 2008
Completion
Sep 2008
Last update
Mar 15, 2024

Study contacts

Alan S Marion, MD, PhD
principal investigator · MDS Pharma Services

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Mar 2024. You cannot join it, but the record below documents what was studied.

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