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TerminatedNCT01335165Updated May 22, 2014

Safety and Pharmacokinetics of TT30 in Subjects With Paroxysmal Nocturnal Hemoglobinuria (PNH)

A Phase 1 interventional study of ALXN1102 and ALXN1103 in Paroxysmal Nocturnal Hemoglobinuria (PNH), sponsored by Alexion Pharmaceuticals, Inc.. Terminated at 5 sites in 5 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2014-05-22.

Sponsored by Alexion Pharmaceuticals, Inc. · Phase 1, Interventional, and Treatment

Why this study was terminated
Inability to reach enrollment as planned
Phase
Phase 1
Study type
Interventional
Enrollment
10
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
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Study summary

The purpose of this research study is to understand the safety, pharmacokinetics and pharmacodynamics of a single dose of TT30 (ALXN1102 and ALXN1103 formulations) when given IV (through a vein) or SC (under the skin) to patients with PNH.

Read the detailed description

This is an open-label, single-dose, dose-escalation study to assess the safety, tolerability, PK, PD, and immunogenicity of TT30 given as an IV infusion and as a SC injection in subjects with PNH or evidence of circulating PNH cells.

Eligible subjects with PNH will be vaccinated with meningococcal vaccine at least two weeks prior to dosing (if not previously vaccinated or if revaccination is required).

On study day 1, the subject will receive the single dose of TT30 as an IV infusion over 60 minutes or as a SC injection, and be followed with additional study evaluations over the next 59 days.

02

Conditions studied

  • Paroxysmal Nocturnal Hemoglobinuria (PNH)

Keywords

  • PNH
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In context

Hemoglobinuria

107 studies on the registry are indexed under Hemoglobinuria; 10 are open to participants now.

This study's enrollment of 10 is below the median of 27 across 89 interventional studies indexed under Hemoglobinuria.

Browse Hemoglobinuria studies →

Lead sponsor

Alexion Pharmaceuticals, Inc. is the lead sponsor of 249 studies on the registry; 25 are open to participants now.

Of its 98 completed or terminated interventional studies of FDA-regulated products, 70 (71%) have results posted.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Individuals at least 18 years of age with a diagnosis of PNH \& vaccination against meningococcus.

Exclusion criteria

Exclusion Criteria:

  • Abnormal renal or liver function
  • History of meningococcal disease
  • History of Guillain-Barre syndrome
  • Known infection with HIV or Hepatitis B or C
  • History of thrombotic events
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
10 participants (actual)

Study arms

  • Experimental
    TT30 (ALXN1102 Formulation)

    IV: 0.1, 0.3, and 1.0 mg/kg

    Drug: ALXN1102

  • Experimental
    TT30 (ALXN1103 Formulation)

    IV: 3.0, 6.0, and 10.0 mg/kg SC: 1.0 and 3.0 mg/kg

    Drug: ALXN1103

Interventions

  • DrugALXN1102

    Single Ascending Dose IV

  • DrugALXN1103

    Single Ascending Dose IV or SC

06

What researchers measure

Primary outcomes

  1. Assess the safety and tolerability of a single dose of TT30.

    Safety and tolerability will be evaluated in all subjects by physical exam, vital signs, ECGs, laboratory changes over time, adverse events, and antibody development.

    Time frame: 60 days

Secondary outcomes

  1. Characterize PK, PD and immunogenicity of a single dose of TT30.

    Immunogenicity will be will be assessed using standard measures for these parameters. PK and PD will be assessed by using standard measures, including reticulocyte count and lactate dehydrogenase (LDH) levels.

    Time frame: 60 days

07

Study locations

5 sites
  • USC/Norris Comprehensive Cancer Center
    Los Angeles, California 90033, United States
  • Institute of Hematology and Blood Transfusion / Institut Hematologie a krevní transfuze
    U nemocnice 1, Prague 2 128 08, Czech Republic
  • Federico II University of Naples
    Via Pansini 5, Naples 80131, Italy
  • University Clinical Centre
    Dębinki 7, Gdańsk 80-952, Poland
  • King's College Hospital NHS Foundation Trust
    Denmark Hill, London SE5 9RS UK, United Kingdom
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 22, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01335165
Lead sponsor
Alexion Pharmaceuticals, Inc.
Responsible party
Sponsor
First posted
Apr 14, 2011
Start date
Apr 2011
Primary completion
Mar 2014
Completion
Mar 2014
Last update
May 22, 2014

Study contacts

Bill Lundberg, MD
study director · Alexion Pharmaceuticals, Inc.

Oversight

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

Not currently enrolling

This study is terminated, as verified in May 2014. You cannot join it, but the record below documents what was studied.

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