Coproporphyrine Isomers and Methotrexate Elimination
COMETH
Urinary Ratio of the Coproporphyrins Isomers I and III and Its Relationships With Methotrexate Elimination in Patients With a Lymphoid Malignancy
1 other identifier
observational
85
1 country
2
Brief Summary
High dose methotrexate (MTX) is responsible of severe toxicity in patients in whom elimination from plasma is delayed. Factors responsible for MTX accumulation are partly known but some patients still experience toxicity despite adequate measures being taken. Our hypothesis is that renal tubular secretion may be impaired in these patients. This study aims at evaluating the performance of the UCP ratio (urinary ratio of coproporphyrins), a putative biomarker of tubular secretion, in predicting delayed MTX elimination.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Oct 2007
Longer than P75 for all trials
2 active sites
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
Study Start
First participant enrolled
October 1, 2007
CompletedFirst Submitted
Initial submission to the registry
January 13, 2009
CompletedFirst Posted
Study publicly available on registry
January 14, 2009
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2011
CompletedStudy Completion
Last participant's last visit for all outcomes
August 1, 2011
CompletedJuly 31, 2012
January 1, 2009
3.8 years
January 13, 2009
July 30, 2012
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
MTX concentrations
at the end of MTX infusion and every 24-hours until concentrations reach 0,2µM.
Secondary Outcomes (4)
The UCP I/(I+III) ratio
before and at the end of MTX infusion and at the end of hospitalisation.
Five polymorphisms of the ABCC2 gene (-24C/T, 1249G/A, 3563T/A, 4544G/A)
during the study
Blood cells count .
before MTX infusion and at the end of hospitalisation
Renal function
before MTX infusion and at the end of hospitalisation
Study Arms (1)
1
Eligibility Criteria
* Patients aged more than 18 y, hospitalized in the neurology or in the haematology department at PSP hospital of Paris or in the haematology department at CHU of Tours * Who should receive high-dose methotrexate (\> 1 g/m2) for one of the following conditions : Central Nervous System Neoplasms; Lymphoma, Large B-Cell, Diffuse; Precursor B-Cell Lymphoblastic Leukemia-Lymphoma or Burkitt lymphoma
You may qualify if:
- Patients receiving HDMTX (≥1g/m2) for a primitive cerebral lymphoma, a large cell lymphoma, a lymphoblastic lymphoma, a Burkitt's lymphoma or an acute lymphoblastic leukaemia,
- over 18 years old,
- Signed informed consent.
- Affiliated to a medical assurance.
- Able to respect the protocol.
- Effective contraception for women.
You may not qualify if:
- renal failure,
- liver failure,
- hepatic cytolysis,
- chronic respiratory deficiency,
- pregnancy,
- breast-feeding,
- Concomitant medication: phenytoin, probenecid, trimethoprim, phenylbutazone, salicylates, non steroid anti-inflammatory, yellow fever vaccine.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
Pitié-Salpêtrière Hospital
Paris, 75013, France
University Hospital Centre of Tours
Tours, 37000, France
Related Publications (1)
Benz-de Bretagne I, Zahr N, Le Gouge A, Hulot JS, Houillier C, Hoang-Xuan K, Gyan E, Lissandre S, Choquet S, Le Guellec C. Urinary coproporphyrin I/(I + III) ratio as a surrogate for MRP2 or other transporter activities involved in methotrexate clearance. Br J Clin Pharmacol. 2014 Aug;78(2):329-42. doi: 10.1111/bcp.12326.
PMID: 24433481DERIVED
Biospecimen
blood
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Chantal Le Guellec, PharmD, PhD
CHRU of Tours
Study Design
- Study Type
- observational
- Time Perspective
- CROSS SECTIONAL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 13, 2009
First Posted
January 14, 2009
Study Start
October 1, 2007
Primary Completion
August 1, 2011
Study Completion
August 1, 2011
Last Updated
July 31, 2012
Record last verified: 2009-01