NCT00548431

Brief Summary

The present pharmacokinetic (PK)-pharmacodynamic (PD) study will explore the toxicity and antileukemic response during the initial 3 months of individualised therapy of children and young adults with acute lymphoblastic leukemia (ALL). The investigators will on an individual toxicity-titrated basis attempt to increase the dose intensity of the 6-mercaptopurine used in the two-months post-remission treatment phase of lower risk childhood ALL. This will be performed together with continuous PEG-ASP (every 2nd week) and interspersed HD-MTX (5 g/m\^2) every 3rd week. Thus, the trial will also test the feasibility of this particular drug combination.

Trial Health

90
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
38

participants targeted

Target at P25-P50 for phase_2

Timeline
Completed

Started Dec 2007

Shorter than P25 for phase_2

Geographic Reach
2 countries

3 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 23, 2007

Completed
1 day until next milestone

First Posted

Study publicly available on registry

October 24, 2007

Completed
1 month until next milestone

Study Start

First participant enrolled

December 1, 2007

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2009

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2009

Completed
1.5 years until next milestone

Results Posted

Study results publicly available

November 3, 2010

Completed
Last Updated

January 9, 2017

Status Verified

November 1, 2016

Enrollment Period

1.1 years

First QC Date

October 23, 2007

Results QC Date

June 24, 2009

Last Update Submit

November 19, 2016

Conditions

Keywords

Leukemia, Lymphocytic, Acute [C04.557.337.428.511]6-mercaptopurinemethotrexateasparaginase

Outcome Measures

Primary Outcomes (1)

  • Toxicity of Treatment in Terms of Number of Participants With Serious Adverse Events or Adverse Events, Reported

    Number of participants following the protocol treatment for the full consolidation therapy with toxicity in this pilot study trying to individually titrate 6-mercaptopurine to the highest tolerable level during Consolidation.

    3 months ( 79 days )

Secondary Outcomes (1)

  • Incorporation of 6-thioguanine Nucleotides (6TGN) Into Leukocyte DNA, Development of Asparaginase Antibody Production

    During the 3 months consolidation therapy

Study Arms (1)

6 mercaptopurine arm

EXPERIMENTAL

All patients received basic daily 6MP (6-mercaptopurine) (25 mg/m\^2) and in addition high-dose methotrexate(HDM) every 3rd week (3 times HDM in total) and PEG-asparaginase every 14th day. Patients increased the dose of 6MP 2 weeks after each HDM if if the myelotoxicity had been acceptable. This means 2 increments since the study stopped 2 weeks after the last HDM

Drug: 6-mercaptopurine

Interventions

Standard dose 25 mg/m\^2/day. Can be increased up to 75 mg/m\^2/day if the myelosuppression is acceptable (ANC\>0.5 T-count \>50)

Also known as: PURINETHOL
6 mercaptopurine arm

Eligibility Criteria

Age1 Year - 18 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • B-lineage ALL
  • years
  • WBC \<100, clinical remission obtained day 2
  • Written consent to participation.

You may not qualify if:

  • t(9;22)
  • Hypodiploidy
  • q23-aberrations
  • TPMT-deficiency
  • Intolerance to MTX or 6MP

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Department of Pediatrics, Rigshospitalet

Copenhagen, Denmark

Location

Department of Pediatrics, University Hospital

Odense, Denmark

Location

Department of Pediatrics, Drottning Sylvias Pediatric Hospital

Gothenburg, Sweden

Location

MeSH Terms

Conditions

Precursor Cell Lymphoblastic Leukemia-LymphomaLeukemia

Interventions

Mercaptopurine

Condition Hierarchy (Ancestors)

Leukemia, LymphoidNeoplasms by Histologic TypeNeoplasmsHematologic DiseasesHemic and Lymphatic DiseasesLymphoproliferative DisordersLymphatic DiseasesImmunoproliferative DisordersImmune System Diseases

Intervention Hierarchy (Ancestors)

Sulfhydryl CompoundsSulfur CompoundsOrganic ChemicalsPurinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic Compounds

Results Point of Contact

Title
Thomas Frandsen
Organization
Rigshospitalet, Juliane Marie Centret

Study Officials

  • Kjeld Schmiegelow, M.D.

    Pediatric Clinic II, RIgshospitalet, Copenhagen, DK-2100

    STUDY CHAIR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

October 23, 2007

First Posted

October 24, 2007

Study Start

December 1, 2007

Primary Completion

January 1, 2009

Study Completion

May 1, 2009

Last Updated

January 9, 2017

Results First Posted

November 3, 2010

Record last verified: 2016-11

Data Sharing

IPD Sharing
Will share

Data published (Frandsen et al, Br J Haematol Oct 2011) Anonymised data on individual patients can be provided by study chair (kschmiegelow@rh.dk) including studyno, gender, age, thiopurine methyltransferase status, immunophenotype, white blood cell count at diagnosis, dose increments at time point 1 and 2 for dose adjustment, and dose-limiting toxicities

Locations