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CompletedNCT00138736Updated Aug 30, 2007

Study on Mannan Binding Lectin (MBL) Substitution in MBL-Deficient Children With Chemotherapy-Induced Neutropenia

A Phase 2 interventional study of Mannan Binding Lectin (MBL) and Mannan Binding Lectin in MBL-Deficient and Neutropenia, sponsored by Prothya Biosolutions. Completed at 2 sites in Netherlands. Open to participants aged Up to 12 Years. Per ClinicalTrials.gov, last updated 2007-08-30.

Sponsored by Prothya Biosolutions · Phase 2, Interventional, and Prevention

Phase
Phase 2
Study type
Interventional
Enrollment
12
Allocation
Non-randomized
Ages
Up to 12 Years
Sex
All
01

Study summary

The pharmacokinetics, and clinical and biological effects of MBL replacement therapy in MBL-deficient children during chemotherapy-induced neutropenia were studied.

Read the detailed description

Mannan Binding Lectin (MBL) is a member of the lectin pathway of the complement system and plays an important role in the innate immune system. MBL replacement in MBL-deficient children with chemotherapy-induced neutropenia represents a new approach to lower the risk of febrile episodes, of hospital admission, of prolonged use of intravenous antibiotics and of severe infections.

The aim of the Phase II study is to find evidence for the correct prediction of plasma levels of MBL necessary for clinical effects and biological efficacy, to confirm the dosage regimen needed to reach the required MBL plasma levels, and reconfirm the safety and lack of side-effects.

02

Conditions studied

  • MBL-Deficient
  • Neutropenia

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Keywords

  • MBL-deficient
  • chemotherapy
  • neutropenia
  • chemotherapy-induced neutropenia
03

In context

Neutropenia

396 studies on the registry are indexed under Neutropenia; 57 are open to participants now.

This study's enrollment of 12 is below the median of 93 across 276 interventional studies indexed under Neutropenia.

Browse Neutropenia studies →

Lead sponsor

Prothya Biosolutions is the lead sponsor of 15 studies on the registry; none are open to participants now.

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

04

Who can participate

Ages eligible
Up to 12 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Children ages 0 - 12 years, during chemotherapy, and expected to become neutropenic
  • MBL deficiency by genotype or phenotype (\< 100 ng/ml)
  • Informed consent and assent of patient and/or legal representative

Exclusion criteria

Exclusion Criteria:

  • Inability or unwillingness to comply with the protocol or likely inability to complete the study period
  • Known allergic reactions to MBL and other human plasma products
  • Participation in other investigational drug studies within the last month
  • Clinically relevant abnormalities in: serum immunoglobulins IgG, IgA, IgM; blood counts; complement factors measured by AP50, CH50; urine protein and cell counts; serum creatinine and liver enzymes, as routinely determined for regular patient care.
05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
12 participants (actual)

Study arms

  • Experimental
    A

    MBL until the patient's absolute neutrophil count (ANC) is above 500/microL blood.

    Drug: Mannan Binding Lectin (MBL) · Drug: Mannan Binding Lectin

Interventions

  • DrugMannan Binding Lectin (MBL)
  • DrugMannan Binding Lectin

    MBL dose at a twice weekly dose interval (3 or 4 days): 0.2 mg/kg, for a 3-day interval; 0.3 mg/kg, for a 4-day interval

    Also known as: MBL SSI

06

What researchers measure

Primary outcomes

  1. pharmacokinetics of MBL

    Time frame: until the patient's absolute neutrophil count (ANC) is above 500/uL blood.

Secondary outcomes

  1. days of fever

    Time frame: until the patient's absolute neutrophil count (ANC) is above 500/uL blood.

  2. days of hospital admission

    Time frame: until the patient's absolute neutrophil count (ANC) is above 500/uL blood.

  3. use of antibiotics or antifungal medication

    Time frame: until the patient's absolute neutrophil count (ANC) is above 500/uL blood.

  4. number and type of infections

    Time frame: until the patient's absolute neutrophil count (ANC) is above 500/uL blood.

  5. MBL-dependent opsonizing capacity in vitro

    Time frame: until the patient's absolute neutrophil count (ANC) is above 500/uL blood.

  6. safety and incidence of side effects

    Time frame: until the patient's absolute neutrophil count (ANC) is above 500/uL blood.

07

Study locations

2 sites
  • Academic Medical Centre
    Amsterdam, 1105 AZ, Netherlands
  • Erasmus Medical Centre
    Rotterdam, 3015 GD, Netherlands
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 30, 2007, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00138736
Lead sponsor
Prothya Biosolutions
Collaborators
Landsteiner Foundation for Blood Transfusion
First posted
Aug 30, 2005
Start date
Apr 2004
Completion
Oct 2006
Last update
Aug 30, 2007

Study contacts

T W Kuijpers, MD, PdD
principal investigator · Dept. of Paediatric Immunology, AMC, Amsterdam, The Netherlands
H N Caron
principal investigator · Dept of Paediatric Oncology, AMC, Amsterdam, The Netherlands

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2007. You cannot join it, but the record below documents what was studied.

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