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Study of Sequential Administration of Oral 6-Thioguanine After Methotrexate in Patients With LCH

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00588536
Recruitment Status : Completed
First Posted : January 8, 2008
Results First Posted : May 4, 2015
Last Update Posted : May 4, 2015
Information provided by (Responsible Party):
Memorial Sloan Kettering Cancer Center

Brief Summary:
The objective of this study is to determine the incidence of complete and partial response and the duration of response in patients with Langerhans Cell Histiocytosis (LCH) treated with sequential administration of oral 6-Thioguanine (6-TG) after Methotrexate (MTX).

Condition or disease Intervention/treatment Phase
Langerhans Cell Histiocytosis Drug: Methotrexate Drug: 6-Thioguanine Drug: Leucovorin Calcium Phase 2

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 5 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Study of Sequential Administration of Oral 6-Thioguanine After Methotrexate in Patients With Langerhans Cell in Histiocytosis (LCH)
Study Start Date : January 1995
Actual Primary Completion Date : July 2008
Actual Study Completion Date : June 2009

Arm Intervention/treatment
Experimental: 1
MTX, 6-TG, Leucovorin
Drug: Methotrexate
MTX 30mg/m2 (or 1mg/kg for infants) orally, given in three equally divided doses at 0,8, and 16hrs
Other Name: MTX

Drug: 6-Thioguanine
6-TG 300mg/m2 (or 10mg/kg for infants) orally, given in one dose.
Other Name: 6-TG

Drug: Leucovorin Calcium
5mg orally at 36,48, and 60hrs (or 12 hrs after the dose of 6-TG and then every 12 hrs for a total of 3 doses)

Primary Outcome Measures :
  1. Determine the Incidence of Complete and Partial Response and the Duration of Response in Patients With Langerhans Cell Histiocytosis (LCH) Treated With Sequential Administration of Oral 6-TG After MTX. [ Time Frame: Conclusion of the study ]

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients with histologic proof of LCH who have multifocal or multisystem disease involvement.
  • Patients must have a life expectancy of at least 8 weeks.
  • All patients must have ECOG performance level rating of-< 2.
  • Patients or their parents (guardian) must sign an informed consent indicating that they are aware of the investigational nature of the study, using commercially available drugs.
  • Patients must have recovered from the toxic effects of prior therapy before entering this study or at least 2 weeks should have elapsed since the end of last course of chemotherapy.
  • Patients must have adequate liver function (bilirubin _< 2.0 mg/dl, SGOT less than 1.5 times normal (unless it is due to disease), adequate renal function (creatinine <_ 1.5 mg/dl, creatinine clearance >_ 60 ml/min/1.73 m2) and normal electrolytes.
  • Patients should have a granulocyte count > 500/uL and a platelet count >_ 100,000/uL (unless due to disease involvement of the bone marrow).
  • Male and female patients of child-bearing age should use effective methods of contraception, if sexually active.

Exclusion Criteria:

  • Patients with active infections or significant medical conditions other than their disease (LCH) shall be excluded.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00588536

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United States, New York
Memorial Sloan-Kettering Cancer Center
New York, New York, United States, 10065
Sponsors and Collaborators
Memorial Sloan Kettering Cancer Center
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Principal Investigator: Tanya Trippett, MD Memorial Sloan Kettering Cancer Center
Additional Information:
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Responsible Party: Memorial Sloan Kettering Cancer Center Identifier: NCT00588536    
Other Study ID Numbers: 94-132
First Posted: January 8, 2008    Key Record Dates
Results First Posted: May 4, 2015
Last Update Posted: May 4, 2015
Last Verified: April 2015
Keywords provided by Memorial Sloan Kettering Cancer Center:
Langerhans Cell Histiocytosis
Additional relevant MeSH terms:
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Histiocytosis, Langerhans-Cell
Lymphatic Diseases
Lung Diseases, Interstitial
Lung Diseases
Respiratory Tract Diseases
Calcium-Regulating Hormones and Agents
Physiological Effects of Drugs
Abortifacient Agents, Nonsteroidal
Abortifacient Agents
Reproductive Control Agents
Antimetabolites, Antineoplastic
Molecular Mechanisms of Pharmacological Action
Antineoplastic Agents
Dermatologic Agents
Enzyme Inhibitors
Folic Acid Antagonists
Immunosuppressive Agents
Immunologic Factors
Antirheumatic Agents
Nucleic Acid Synthesis Inhibitors
Protective Agents
Vitamin B Complex