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CompletedNCT00548769Updated Aug 1, 2017

Firategrast (SB683699) Surface Area Study in Multiple Sclerosis Patients

A Phase 1 interventional study of Formulation A and Formulation B in Multiple Sclerosis, sponsored by GlaxoSmithKline. Completed at 4 sites in 3 countries. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2017-08-01.

Sponsored by GlaxoSmithKline · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Registered 6 months after the study started (first participant enrolled Apr 2007, registered Oct 2007).
Phase
Phase 1
Study type
Interventional
Enrollment
37
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

Sufficient subjects with a confirmed diagnosis of MS (EDSS score of 6.5 or below), will be recruited to ensure that 30 subjects (approx. equal numbers of each gender) complete the study. Subjects will undergo a screening visit, then four study days, each separated by a washout period of at least 7 days, when the different firategrast batches of drug substance will be administered, and a follow-up visit.

Read the detailed description

An open-label, randomised, four period crossover study to investigate the relative pharmacokinetic profiles of tablets from three batches of firategrast with different surface areas and two different tablet formulations containing the same batch of firategrast, given as single 900mg doses to male and female subjects with a diagnosis of Multiple Sclerosis

02

Conditions studied

  • Multiple Sclerosis

Keywords

  • PK,
  • SB-683699,
  • multiple sclerosis
  • firategrast,
  • surface area,
03

In context

Multiple Sclerosis

3,460 studies on the registry are indexed under Multiple Sclerosis; 661 are open to participants now.

This study's enrollment of 37 is below the median of 50 across 2,342 interventional studies indexed under Multiple Sclerosis.

Browse Multiple Sclerosis studies →

Lead sponsor

GlaxoSmithKline is the lead sponsor of 3,561 studies on the registry; 116 are open to participants now.

Of its 258 completed or terminated interventional studies of FDA-regulated products, 232 (90%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Male and female subjects aged 18-65 years inclusive with a diagnosis of MS
  • EDSS between 0-6.5 inclusive at the Screening visit
  • QTc \<450msec
  • A female subject is eligible to enter the study if she is of non-childbearing potential, or of childbearing potential, has a negative urine pregnancy test at Screening, and agrees to consistent and correct use of adequate contraception
  • Provide a signed and dated written informed consent prior to study participation
  • The subject is able to understand and comply with protocol requirements, instructions and protocol-stated restrictions
  • A negative urine drugs of abuse test.
  • No evidence of pulmonary tuberculosis as verified by a negative chest X-ray within the past 6 months

Exclusion criteria

Exclusion Criteria:

  • Subjects receiving corticosteroids within 4 weeks of Screening for treatment of MS. If non-systemic steroids are being used for other chronic inflammatory conditions, subjects may be included at the discretion of the investigator after discussion with the GSK medical monitor.
  • Use of an β-interferon product, glatiramer acetate or azathioprine within 3 months of Screening, or use of Mitoxantrone within 12 months of Screening. Subjects who have received other therapies affecting the immune system (such as IVIg, cyclophosphamide, plasmapheresis, or any other immunosuppressive or immunomodulatory treatment) in the past may be included on a case by case basis after discussion with the GSK medical monitor. None of these treatments will be allowed during this study
  • Previous exposure to alemtuzumab, natalizumab or bone marrow transplantation or whole body irradiation.
  • Subjects with a cardiac pacemaker or any other type of metal implant or with any other contraindication for MRI (including known allergy to gadolinium).
  • Use of 4-aminopyridine, rosiglitazone, pioglitazone and any other compounds metabolised primarily through cytochrome P450 2C8 are prohibited at Screening and throughout the study
  • Subjects with clinically significant renal laboratory values: subjects with a calculated creatinine clearance \<60ml/min
  • Subjects with local urinalysis findings outside of ranges defined in the protocol during the screening period.
  • Presence of clinically significant hepatic laboratory values
  • CD4 count \<500 cells/µl, CD4:CD8 \<1.0, idiopathic CD4/CD8 lymphopenia or secondary lymphopenia at Screening.
  • JCV DNA detected in plasma or buffy coat using PCR
  • Any findings on the MRI of the brain other than MS, except for benign findings that require no further evaluation or treatment and do not have an impact on the patient's neurological health
  • Current or history of cancer, excluding localized non-melanoma skin cancer.
  • Uncontrolled or any active bacterial, viral, or fungal infection. Any previous serious infections should be discussed with the GSK medical monitor (e.g. opportunistic or atypical infections).
  • History of tuberculosis or positive chest X-ray for TB
  • Known congenital or acquired immunodeficiency.
  • Any abnormality on 12-lead ECG at Screening which is clinically significant in the opinion of the investigator.
  • Subjects with positive hepatitis B, hepatitis C or HIV tests at Screening.
  • Women who are lactating, pregnant (positive pregnancy test at Screening), or planning to become pregnant during the course of the study.
  • Recent history or suspicion of current drug abuse (including analgesic abuse) or alcohol abuse within the last 6 months prior to Screening.
  • Use of an investigational drug for condition other than MS within 30 days or 5 half-lives (whichever is longer) preceding Screening. Prior use of an investigational drug for MS should be discussed with the GSK medical monitor.
  • Any concurrent illness, disability or clinically significant abnormality (including laboratory tests) that may affect the interpretation of clinical efficacy or safety data or prevent the subject from safely completing the assessments required by the protocol.
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
37 participants (actual)

Study arms

  • Experimental
    Sequence ADBC

    Subjects will be administered formulation A, formulation D, formulation B and formulation C across four study days each separated by a washout period of at least seven days. Subjects will fast overnight prior to dosing. Blood samples will be collected at intervals over a period of 24 hours post-dose.

    Drug: Formulation A · Drug: Formulation B · Drug: Formulation C · Drug: Formulation D

  • Experimental
    Sequence BACD

    Subjects will be administered formulation B, formulation A, formulation C and formulation D across four study days each separated by a washout period of at least seven days. Subjects will fast overnight prior to dosing. Blood samples will be collected at intervals over a period of 24 hours post-dose.

    Drug: Formulation A · Drug: Formulation B · Drug: Formulation C · Drug: Formulation D

  • Experimental
    Sequence CBDA

    Subjects will be administered formulation C, formulation B, formulation D and formulation A across four study days each separated by a washout period of at least seven days. Subjects will fast overnight prior to dosing. Blood samples will be collected at intervals over a period of 24 hours post-dose.

    Drug: Formulation A · Drug: Formulation B · Drug: Formulation C · Drug: Formulation D

  • Experimental
    Sequence DCAB

    Subjects will be administered formulation D, formulation C, formulation A and formulation B across four study days each separated by a washout period of at least seven days. Subjects will fast overnight prior to dosing. Blood samples will be collected at intervals over a period of 24 hours post-dose.

    Drug: Formulation A · Drug: Formulation B · Drug: Formulation C · Drug: Formulation D

Interventions

  • DrugFormulation A

    Formulation A will contain firategrast drug substance from native drug batch Irvine. Subjects will be administered three tablets of 300 milligrams with drug substance surface area of 2.1 square meter per gram. The tablets will be administered with 240 milliliters of water.

    Also known as: firategrast (SB683699)

  • DrugFormulation B

    Formulation B will contain firategrast drug substance from native drug batch Tonbridge. Subjects will be administered three tablets of 300 milligrams with drug substance surface area of 2.6 square meter per gram. The tablets will be administered with 240 milliliters of water.

  • DrugFormulation C

    Formulation C will contain firategrast drug substance from Tonbridge single pass micronized drug. Subjects will be administered three tablets of 300 milligrams with drug substance surface area of 3-4 square meter per gram. The tablets will be administered with 240 milliliters of water.

  • DrugFormulation D

    Formulation D will contain firategrast drug substance from Tonbridge with reduced tablet size. Subjects will be administered three tablets of 300 milligrams with drug substance surface area of 2.6 square meter per gram. The tablets will be administered with 240 milliliters of water.

06

What researchers measure

Primary outcomes

  1. The AUC(0-24) for firategrast following administration of tablets made from three different batches of drug with different surface areas.

    Time frame: Pre-dose. 0.5 hours, 1 hour, 2 hours, 3 hours, 4 hours, 6 hours, 8 hours, 12 hours, 16 hours, 24 hours post dose

Secondary outcomes

  1. Cmax and Tmax. The AUC(0-24) Cmax and Tmax of of SB683699 metabolite GW786375X.

    Time frame: Pre-dose. 0.5 hours, 1 hour, 2 hours, 3 hours, 4 hours, 6 hours, 8 hours, 12 hours, 16 hours, 24 hours post dose

  2. AEs, vital signs and clinical laboratory data during the course of the study.

    Time frame: Throughout the course of the study

  3. SB-683699 and GW786375X plasma concentration to derive pharmacokinetic parameters.

    Time frame: Pre-dose. 0.5 hours, 1 hour, 2 hours, 3 hours, 4 hours, 6 hours, 8 hours, 12 hours, 16 hours, 24 hours post dose

07

Study locations

4 sites
  • GSK Investigational Site
    Praha 5, 150 18, Czechia
  • GSK Investigational Site
    Berlin, 10117, Germany
  • GSK Investigational Site
    Grodzisk Mazowiecki, 05-825, Poland
  • GSK Investigational Site
    Poznan, 60-479, Poland
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 1, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00548769
Lead sponsor
GlaxoSmithKline
Responsible party
Sponsor
First posted
Oct 24, 2007
Start date
Apr 21, 2007
Primary completion
Nov 26, 2007
Completion
Nov 26, 2007
Last update
Aug 1, 2017

Study contacts

GSK Clinical Trials
study director · GlaxoSmithKline

Oversight

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

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