Approval Required

Yes, if not ordered by Adult or Pediatric Hematology-Oncology

Available Stat

No

Performing Lab

Medical Genomics - Molecular Diagnostics

Performed

Run 1x per week as needed, Monday or Wednesday, day shift only

Methodology

RT-PCR and DNA sequencing

Reported

7-10 days

Additional Information

Treatment of CML and ALL patients positive for BCR-ABL chromosomal translocation is aimed at the eradication of tumor cells carrying the BCR-ABL oncoprotein, which has increased tyrosine kinase activity. Treatment with Gleevec (imatinib mesylate) or other tyrosine kinase inhibitors (TKI's) may result in drug resistance caused by the development of mutations within the ABL kinase domain (KD) of the BCR-ABL oncoprotein. Early identification of these mutations, for example as a patient is monitored for minimal residual disease by PCR, may prevent clinical relapse and allow physicians to use alternative TKI's that could potentially eradicate leukemic clones carrying a specific ABL KD mutation. Specific ABL KD mutations have been determined to be either sensitive or resistant to imatinib, dasatinib, or ilotinib and therefore treatment modalities can be tailored based on a patient's specific mutation.

This test will detect leukemic clones carrying a BCR-ABL translocation at a level of 1 in 100,000 cells and will identify ABL KD mutations in that population when 20% or more of the cells contain the mutation.

The result is reported as negative or positive with the type of ABL KD mutation detected and whether it is present as a clonal expansion or on a background on non-mutated cells. Results are best interpreted during follow-up monitoring of the BCR-ABL to ABL ratio using the Quantitative BCR-ABL assay.

This test was developed and it's performance characteristics determined by the Clinical Laboratories at the UCSF Medical Center. it has not been cleared or approved by the U.S. Food and Drug Administration.

Reflex Testing

An interpretation of this test by a laboratory physician will automatically be performed and billed for separately.

Synonyms

  • BCR-ABL mutations
  • BCR/ABL mutations
  • CML
  • Chronic myelogenous leukemia
  • Gleevec resistance
  • Iminitab mesylate resistance
  • Philadelphia chromosome
  • PH1 chromosome
  • breakpoint cluster region

Sample Type

EDTA Whole blood or bone marrow

Collect

Lavender top

Amount to Collect

Blood: 5 mL
Marrow: 2 mL

Preferred Volume

Blood: 5 mL
Marrow: 2 mL

Minimum Volume

Blood: 2 mL
Marrow: 1 mL

Remarks

Due to limited stability samples for this test should not be collected the day before a holiday or 3-day weekend.

Do not collect sample in heparin. Keep sample refrigerated for overnight or longer storage.

Stability (from collection to initiation)

Refrigerated 3 days.

Unacceptable Conditions

Samples collected in heparin

Test Code

KDSQ

Test Group

BCRABL

Performing Lab

Medical Genomics - Molecular Diagnostics

Specimen Preparation

Do not centrifuge. Refrigerate sample, DO NOT freeze.

Preferred Volume

Blood: 5 mL
Marrow: 2 mL

Minimum Volume

Blood: 2 mL
Marrow: 1 mL

Unacceptable Conditions

Samples collected in heparin

Stability (from collection to initiation)

Refrigerated 3 days.

Reference Interval

None detected

Additional Information

Treatment of CML and ALL patients positive for BCR-ABL chromosomal translocation is aimed at the eradication of tumor cells carrying the BCR-ABL oncoprotein, which has increased tyrosine kinase activity. Treatment with Gleevec (imatinib mesylate) or other tyrosine kinase inhibitors (TKI's) may result in drug resistance caused by the development of mutations within the ABL kinase domain (KD) of the BCR-ABL oncoprotein. Early identification of these mutations, for example as a patient is monitored for minimal residual disease by PCR, may prevent clinical relapse and allow physicians to use alternative TKI's that could potentially eradicate leukemic clones carrying a specific ABL KD mutation. Specific ABL KD mutations have been determined to be either sensitive or resistant to imatinib, dasatinib, or ilotinib and therefore treatment modalities can be tailored based on a patient's specific mutation.

This test will detect leukemic clones carrying a BCR-ABL translocation at a level of 1 in 100,000 cells and will identify ABL KD mutations in that population when 20% or more of the cells contain the mutation.

The result is reported as negative or positive with the type of ABL KD mutation detected and whether it is present as a clonal expansion or on a background on non-mutated cells. Results are best interpreted during follow-up monitoring of the BCR-ABL to ABL ratio using the Quantitative BCR-ABL assay.

This test was developed and it's performance characteristics determined by the Clinical Laboratories at the UCSF Medical Center. it has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Codes

81170

LDT or Modified FDA

Yes

Approval Required

Yes, if not ordered by Adult or Pediatric Hematology-Oncology

Available Stat

No

Test Code

KDSQ

Test Group

BCRABL

Performing Lab

Medical Genomics - Molecular Diagnostics

Performed

Run 1x per week as needed, Monday or Wednesday, day shift only

Methodology

RT-PCR and DNA sequencing

Remarks

Due to limited stability samples for this test should not be collected the day before a holiday or 3-day weekend.

Do not collect sample in heparin. Keep sample refrigerated for overnight or longer storage.

Collect

Lavender top

Amount to Collect

Blood: 5 mL
Marrow: 2 mL

Sample Type

EDTA Whole blood or bone marrow

Preferred Volume

Blood: 5 mL
Marrow: 2 mL

Minimum Volume

Blood: 2 mL
Marrow: 1 mL

Unacceptable Conditions

Samples collected in heparin

Specimen Preparation

Do not centrifuge. Refrigerate sample, DO NOT freeze.

Reference Interval

None detected

Synonyms

  • BCR-ABL mutations
  • BCR/ABL mutations
  • CML
  • Chronic myelogenous leukemia
  • Gleevec resistance
  • Iminitab mesylate resistance
  • Philadelphia chromosome
  • PH1 chromosome
  • breakpoint cluster region

Stability (from collection to initiation)

Refrigerated 3 days.

Reported

7-10 days

Reflex Testing

An interpretation of this test by a laboratory physician will automatically be performed and billed for separately.

Additional Information

Treatment of CML and ALL patients positive for BCR-ABL chromosomal translocation is aimed at the eradication of tumor cells carrying the BCR-ABL oncoprotein, which has increased tyrosine kinase activity. Treatment with Gleevec (imatinib mesylate) or other tyrosine kinase inhibitors (TKI's) may result in drug resistance caused by the development of mutations within the ABL kinase domain (KD) of the BCR-ABL oncoprotein. Early identification of these mutations, for example as a patient is monitored for minimal residual disease by PCR, may prevent clinical relapse and allow physicians to use alternative TKI's that could potentially eradicate leukemic clones carrying a specific ABL KD mutation. Specific ABL KD mutations have been determined to be either sensitive or resistant to imatinib, dasatinib, or ilotinib and therefore treatment modalities can be tailored based on a patient's specific mutation.

This test will detect leukemic clones carrying a BCR-ABL translocation at a level of 1 in 100,000 cells and will identify ABL KD mutations in that population when 20% or more of the cells contain the mutation.

The result is reported as negative or positive with the type of ABL KD mutation detected and whether it is present as a clonal expansion or on a background on non-mutated cells. Results are best interpreted during follow-up monitoring of the BCR-ABL to ABL ratio using the Quantitative BCR-ABL assay.

This test was developed and it's performance characteristics determined by the Clinical Laboratories at the UCSF Medical Center. it has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Codes

81170

LDT or Modified FDA

Yes
Ordering

Approval Required

Yes, if not ordered by Adult or Pediatric Hematology-Oncology

Available Stat

No

Performing Lab

Medical Genomics - Molecular Diagnostics

Performed

Run 1x per week as needed, Monday or Wednesday, day shift only

Methodology

RT-PCR and DNA sequencing

Reported

7-10 days

Additional Information

Treatment of CML and ALL patients positive for BCR-ABL chromosomal translocation is aimed at the eradication of tumor cells carrying the BCR-ABL oncoprotein, which has increased tyrosine kinase activity. Treatment with Gleevec (imatinib mesylate) or other tyrosine kinase inhibitors (TKI's) may result in drug resistance caused by the development of mutations within the ABL kinase domain (KD) of the BCR-ABL oncoprotein. Early identification of these mutations, for example as a patient is monitored for minimal residual disease by PCR, may prevent clinical relapse and allow physicians to use alternative TKI's that could potentially eradicate leukemic clones carrying a specific ABL KD mutation. Specific ABL KD mutations have been determined to be either sensitive or resistant to imatinib, dasatinib, or ilotinib and therefore treatment modalities can be tailored based on a patient's specific mutation.

This test will detect leukemic clones carrying a BCR-ABL translocation at a level of 1 in 100,000 cells and will identify ABL KD mutations in that population when 20% or more of the cells contain the mutation.

The result is reported as negative or positive with the type of ABL KD mutation detected and whether it is present as a clonal expansion or on a background on non-mutated cells. Results are best interpreted during follow-up monitoring of the BCR-ABL to ABL ratio using the Quantitative BCR-ABL assay.

This test was developed and it's performance characteristics determined by the Clinical Laboratories at the UCSF Medical Center. it has not been cleared or approved by the U.S. Food and Drug Administration.

Reflex Testing

An interpretation of this test by a laboratory physician will automatically be performed and billed for separately.

Synonyms

  • BCR-ABL mutations
  • BCR/ABL mutations
  • CML
  • Chronic myelogenous leukemia
  • Gleevec resistance
  • Iminitab mesylate resistance
  • Philadelphia chromosome
  • PH1 chromosome
  • breakpoint cluster region
Collection

Sample Type

EDTA Whole blood or bone marrow

Collect

Lavender top

Amount to Collect

Blood: 5 mL
Marrow: 2 mL

Preferred Volume

Blood: 5 mL
Marrow: 2 mL

Minimum Volume

Blood: 2 mL
Marrow: 1 mL

Remarks

Due to limited stability samples for this test should not be collected the day before a holiday or 3-day weekend.

Do not collect sample in heparin. Keep sample refrigerated for overnight or longer storage.

Stability (from collection to initiation)

Refrigerated 3 days.

Unacceptable Conditions

Samples collected in heparin
Processing

Test Code

KDSQ

Test Group

BCRABL

Performing Lab

Medical Genomics - Molecular Diagnostics

Specimen Preparation

Do not centrifuge. Refrigerate sample, DO NOT freeze.

Preferred Volume

Blood: 5 mL
Marrow: 2 mL

Minimum Volume

Blood: 2 mL
Marrow: 1 mL

Unacceptable Conditions

Samples collected in heparin

Stability (from collection to initiation)

Refrigerated 3 days.
Result Interpretation

Reference Interval

None detected

Additional Information

Treatment of CML and ALL patients positive for BCR-ABL chromosomal translocation is aimed at the eradication of tumor cells carrying the BCR-ABL oncoprotein, which has increased tyrosine kinase activity. Treatment with Gleevec (imatinib mesylate) or other tyrosine kinase inhibitors (TKI's) may result in drug resistance caused by the development of mutations within the ABL kinase domain (KD) of the BCR-ABL oncoprotein. Early identification of these mutations, for example as a patient is monitored for minimal residual disease by PCR, may prevent clinical relapse and allow physicians to use alternative TKI's that could potentially eradicate leukemic clones carrying a specific ABL KD mutation. Specific ABL KD mutations have been determined to be either sensitive or resistant to imatinib, dasatinib, or ilotinib and therefore treatment modalities can be tailored based on a patient's specific mutation.

This test will detect leukemic clones carrying a BCR-ABL translocation at a level of 1 in 100,000 cells and will identify ABL KD mutations in that population when 20% or more of the cells contain the mutation.

The result is reported as negative or positive with the type of ABL KD mutation detected and whether it is present as a clonal expansion or on a background on non-mutated cells. Results are best interpreted during follow-up monitoring of the BCR-ABL to ABL ratio using the Quantitative BCR-ABL assay.

This test was developed and it's performance characteristics determined by the Clinical Laboratories at the UCSF Medical Center. it has not been cleared or approved by the U.S. Food and Drug Administration.
Administrative

CPT Codes

81170

LDT or Modified FDA

Yes
Complete View

Approval Required

Yes, if not ordered by Adult or Pediatric Hematology-Oncology

Available Stat

No

Test Code

KDSQ

Test Group

BCRABL

Performing Lab

Medical Genomics - Molecular Diagnostics

Performed

Run 1x per week as needed, Monday or Wednesday, day shift only

Methodology

RT-PCR and DNA sequencing

Remarks

Due to limited stability samples for this test should not be collected the day before a holiday or 3-day weekend.

Do not collect sample in heparin. Keep sample refrigerated for overnight or longer storage.

Collect

Lavender top

Amount to Collect

Blood: 5 mL
Marrow: 2 mL

Sample Type

EDTA Whole blood or bone marrow

Preferred Volume

Blood: 5 mL
Marrow: 2 mL

Minimum Volume

Blood: 2 mL
Marrow: 1 mL

Unacceptable Conditions

Samples collected in heparin

Specimen Preparation

Do not centrifuge. Refrigerate sample, DO NOT freeze.

Reference Interval

None detected

Synonyms

  • BCR-ABL mutations
  • BCR/ABL mutations
  • CML
  • Chronic myelogenous leukemia
  • Gleevec resistance
  • Iminitab mesylate resistance
  • Philadelphia chromosome
  • PH1 chromosome
  • breakpoint cluster region

Stability (from collection to initiation)

Refrigerated 3 days.

Reported

7-10 days

Reflex Testing

An interpretation of this test by a laboratory physician will automatically be performed and billed for separately.

Additional Information

Treatment of CML and ALL patients positive for BCR-ABL chromosomal translocation is aimed at the eradication of tumor cells carrying the BCR-ABL oncoprotein, which has increased tyrosine kinase activity. Treatment with Gleevec (imatinib mesylate) or other tyrosine kinase inhibitors (TKI's) may result in drug resistance caused by the development of mutations within the ABL kinase domain (KD) of the BCR-ABL oncoprotein. Early identification of these mutations, for example as a patient is monitored for minimal residual disease by PCR, may prevent clinical relapse and allow physicians to use alternative TKI's that could potentially eradicate leukemic clones carrying a specific ABL KD mutation. Specific ABL KD mutations have been determined to be either sensitive or resistant to imatinib, dasatinib, or ilotinib and therefore treatment modalities can be tailored based on a patient's specific mutation.

This test will detect leukemic clones carrying a BCR-ABL translocation at a level of 1 in 100,000 cells and will identify ABL KD mutations in that population when 20% or more of the cells contain the mutation.

The result is reported as negative or positive with the type of ABL KD mutation detected and whether it is present as a clonal expansion or on a background on non-mutated cells. Results are best interpreted during follow-up monitoring of the BCR-ABL to ABL ratio using the Quantitative BCR-ABL assay.

This test was developed and it's performance characteristics determined by the Clinical Laboratories at the UCSF Medical Center. it has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Codes

81170

LDT or Modified FDA

Yes