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NCT Number: NCT01200485

Rasburicase in Patients at High Risk for Tumor Lysis Syndrome (TLS) During Cycle-2

The goal of this clinical research study is to learn if using Elitek (rasburicase) for 2 cycles can help to control or prevent TLS better than 1 cycle of rasburicase and 1 cycle of allopurinol. The safety of this treatment will also be studied.

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Key information

Conditions

Leukemia Hematologic Diseases Hematologic Neoplasms Hemic and Lymphatic Diseases Immune System Diseases Immunoproliferative Disorders Leukemia, Myeloid Leukemia, Myeloid, Acute Lymphatic Diseases Lymphoma Lymphoproliferative Disorders Neoplasms Neoplasms by Histologic Type Neoplasms by Site Tumor Lysis Syndrome

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

University of Texas MD Anderson Cancer Center

Houston, Texas, 77030, United States

About this study

Study Drugs:

Rasburicase is designed to help decrease or prevent the high level of uric acid that may occur during the beginning of chemotherapy. A high level of uric acid results from TLS and can lead to kidney failure.

Allopurinol is designed to help block uric acid. It is the standard of care for helping to control increased uric acid levels caused by TLS.

Study Groups and Drug Administration:

Each cycle will last about 3 weeks.

If you are found to be eligible to take part in this study, you will receive rasburicase by vein over about 30 minutes on Day 1 of Cycle 1 (about 4 hours before you begin receiving chemotherapy). If the doctor thinks it is needed, you may also receive the drug on Days 2-5 of Cycle 1.

For Cycle 2, you will be randomly assigned (as in the flip of a coin) to 1 of 2 study groups. There is an equal chance of being assigned to either group:

  • If you are in Group A, you will receive rasburicase on Day 1 of Cycle 2. If the doctor thinks it is needed, you may also receive the drug on Days 2-5 of Cycle 2.
  • If you are in Group B, you will receive allopurinol by vein over 30 minutes each day on Days 1-5 of Cycle 2.

Group B Participants: If your uric acid blood levels continue to increase in Cycle 2 and you show symptoms of tumor lysis syndrome, you may receive rasburicase as a single dose. If the doctor thinks it is needed, you may also receive 1 or more additional dose(s).

Study Visits:

On Day 1 of Cycle 1:

  • Blood (about 1 teaspoon) will be drawn to check uric acid levels before and 4 hours after you receive rasburicase.
  • Blood (about 2 tablespoons) will be drawn for routine tests.
  • Blood (about 1 teaspoon) will be drawn for antibody testing. Antibodies are proteins made by the body that the immune system uses to help prevent disease.

On Days 2-5 of Cycle 1:

  • Blood (about 1 teaspoon) will be drawn to check uric acid levels.
  • Blood (about 2 tablespoon) will be drawn for routine tests.

At the end of both cycles, blood (about 1 teaspoon) will be drawn for antibody testing.

Length of Study:

You will receive drugs on this study for up to 2 cycles. You will be taken off study if intolerable side effects occur.

Your participation in the study will be over after the follow-up visit.

Follow-Up:

Three (3) months after the end of Cycle 2, blood (about 1 teaspoon) will be drawn for antibody testing.

This is an investigational study. Allopurinol is commercially available and FDA approved to treat TLS. Rasburicase is commercially available and FDA approved for treating TLS for 1 cycle in patients with leukemia, lymphoma, and solid tumor cancers who are receiving anti-cancer therapy. It is investigational to give rasburicase for 2 cycles.

Up to 55 patients will take part in this study. All will be enrolled at MD Anderson.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients that are high risk for TLS or potential/intermediate risk for TLS as described below: (a) High risk: Hyperuricemia of malignancy (Uric acid levels >7.5); or diagnosis of very aggressive lymphoma/leukemia based on Revised European-American Lymphoma (REAL) classification; acute myeloid leukemia, CML in blast crisis; high grade myelodysplastic syndrome only if they have >10% bone marrow blast involvement and given aggressive treatment similar to acute myeloid leukemia (AML). (b) Potential risk: Diagnosis of aggressive lymphoma/leukemia based on (REAL) classification. Plus one or more of the following criteria: lactate dehydrogenase (LDH) >/= 2 x upper limit of normal (UNL); Stage III-IV disease; Stage I-II disease with at least 1 lymph node/tumor > 5 cm in diameter. For patients with potential/intermediate risk for TLS- Only those planned to receive alternating regimens (or non-standard regimens) in 2 cycles (example; R-Hyper-central venous access device (CVAD) alternating with MTX/ARA-C) will be eligible.
  • Eastern Cooperative Oncology Group (ECOG) performance status 0-3.
  • Negative pregnancy test (females of child bearing potential) within </= 1 week of rasburicase dose and use of efficient contraceptive method (both males and females). Pregnancy test may be performed on serum (HCG) or urine (HCG).
  • Signed written informed consent approved by the Institutional Review Board obtained prior to study entry.

Exclusion criteria

  • Prior H/O severe allergy or asthma requiring active treatment.
  • Patients with mantle cell lymphoma (MCL) with stage 1 or 2 disease.
  • Patient receiving any investigational drug for hyperuricemia within 30 days of planned first treatment with rasburicase.
  • Pregnancy or lactation.
  • Known history of glucose-6-phosphate dehydrogenase (G6PD) deficiency.
  • Known history of hemolysis and/or methemoglobinemia.
  • Previous therapy with urate oxidase.
  • Conditions unsuitable for participation in the trial in the Investigator's opinion.
  • Unwillingness to comply with the requirements of the protocol.
  • Use of allopurinol within 72 hours of the study entry.

Treatment and study plan

Rasburicase

Drug

Cycle 1: 3 mg/kg by vein on Day 1, plus as needed dosing (until day 5), during Cycle 1.

Cycle 2 Arm A: 0.15 mg/kg by vein on Day 1 of Cycle 2, plus as needed dosing (until day 5), during Cycle 2.

Allopurinol

Drug

Arm B: 300 mg/day by vein, as standard of care, over 30 minutes each day on days 1-5 of cycle 2 in 21 day cycle.

Other names: Loprin, Zurinol, Zyloprim

Primary outcomes

  1. Number of Participants (Incidence) of LTLS (Laboratory Tumor Lysis Syndrome)

    Time frame: Up to two 3-week cycles, 6 weeks

    Number of participants (incidence) of LTLS in the two arms, as defined by the Cairo-Bishop criteria , during cycle 2.

    Cairo-Bishop criteria:

    Uric acid x ≥ 476 μmol/l or 25% increase from baseline Potassium x ≥ 6·0 mmol/l or 25% increase from baseline Phosphorous x ≥ 2·1 mmol/l (children), x ≥1·45 mmol/l (adults) or 25% increase from baseline Calcium x ≤ 1·75 mmol/l or 25% decrease from baseline Laboratory tumour lysis syndrome (LTLS) is defined as either a 25% change or level above or below normal, as defined above, for any two or more serum values of uric acid, potassium, phosphate, and calcium within 3d before or 7d after the initiation of chemotherapy.

  2. Number of Cycle 2 Participants Normalizing Uric Acid Levels (UAL) Within 24 Hours of Treatment

    Time frame: Up to 24 hours of cycle 2 dose delivery

    Number of participants with normalized UAL as determined by a uric acid blood test at either 24 hours. A uric acid blood test, also known as a serum uric acid measurement, determines how much uric acid is present in the blood where normal levels are 2.4-6.0 mg/dL (female) and 3.4-7.0 mg/dL (male).

Sponsors and collaborators

Lead sponsor

M.D. Anderson Cancer Center

Other

Collaborators

  • Sanofi

Registry information

Official study title

A Randomized Phase 2 Study to Evaluate the Efficacy of Rasburicase in Patients at Risk for TLS During Two Cycles of Chemotherapy

Important dates

Study start
2011
Primary completion
2016
Study completion
2016
First posted
Sep 13, 2010
Registry last updated
Jan 31, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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