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HelpTest ID: PSYQP Psychotropic Pharmacogenomics Gene Panel, Varies
Necessary Information
Prior Authorization is available, but not required, for this test. If proceeding with the prior authorization process, submit the required form with the specimen.
Specimen Required
Submit only 1 of the following specimens:
Specimen Type: Whole blood
Container/Tube: Lavender top (EDTA)
Specimen Volume: 3 mL
Collection Instructions:
1. Invert several times to mix blood.
2. Send whole blood specimen in original tube. Do not aliquot.
Specimen Stability Information: Ambient (preferred) 9 days/Refrigerated 30 days
Specimen Type: Saliva
Patient Preparation: Patient should not eat, drink, smoke, or chew gum 30 minutes prior to collection.
Supplies: Saliva Swab Collection Kit (T786)
Specimen Volume: 2 Swabs, use 2 kits for collection
Collection Instructions: Collect and send specimen per kit instructions.
Additional Information: Due to lower concentration of DNA yielded from saliva, testing cannot proceed to reflex testing for CYP2D6 sequencing and will stop after initial testing is complete.
Specimen Stability Information: Ambient 30 days
Specimen Type: Extracted DNA
Container/Tube: 2-mL screw top tube
Specimen Volume: 100 mcL (microliters)
Collection Instructions:
1. The preferred volume is 100 mcL at a concentration of 50 ng/mcL.
2. Provide concentration of DNA and volume on tube.
Specimen Stability Information: Frozen (preferred) 1 year/Ambient/Refrigerated
Forms
1. New York Clients-Informed consent is required. Document on the request form or electronic order that a copy is on file. The following documents are available:
-Informed Consent for Genetic Testing (T576)
-Informed Consent for Genetic Testing-Spanish (T826)
2. Psychotropic Pharmacogenomics Gene Panel Prior Authorization Ordering Instructions
3. If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.
Useful For
Individualizing selection and dosage of medications prescribed for treatment of depression and other psychiatric disorders based on genetic variation
Identifying genetic variation in genes known to be associated with response and/or risk of toxicity with psychotropic medications
Evaluating patients who have failed therapy with selective serotonin reuptake inhibitors (SSRI)
Evaluating patients with treatment-resistant depression
Predicting response time to improvement with SSRI
Genetics Test Information
This test includes targeted testing to evaluate the following genes: ANKK1, ADRA2, CHRNA3, COMT, CYP1A2, CYP2B6, CYP2C9, CYP2C19, CYP2D6, CYP3A4, CYP3A5, DRD2, EPHX1, GRIK4, HLA-A*31:01, HLA-B*15:02, HTR2A, HTR2C, MTHFR, OPRM1, SCN1A, SLC6A4 (5-HTT), and UGT2B15.
CYP2D6 testing is done in 2 tiers when needed. Tier 1 uses a polymerase chain reaction (PCR)-based 5'-nuclease assay to determine the variants present. All samples also have copy number determined by PCR-based 5'-nuclease assay. Testing in tier 1 allows for the detection of all common CYP2D6 variants (eg, *2, *3, *4, *5, *6, *7, *8, *9, *10, *17, *29, *35, *41, *59) and rarer alleles such as *11, *12, *14, *15, and *114. Duplications and multiplications of alleles are also identified. Unitary and tandem CYP2D7-2D6 (*13) alleles and CYP2D6-2D7 (eg, *4N, *36, and *68) alleles can also be detected. Tier 2 testing involves sequencing using fluorescent dye-terminator chemistry and is only done if an ambiguous phenotype results from tier 1 testing. Approximately 3% of samples require tier 2 testing.
Prior Authorization is available for this assay.
Testing Algorithm
If a specimen requires follow-up for CYP2D6, then reflex testing will be performed as appropriate at an additional charge.
For more information see CYP2D6 Comprehensive Cascade Testing Algorithm.
Method Name
Real-Time Polymerase Chain Reaction (RT-PCR) with Allelic Discrimination Analysis/Qualitative Allele-Specific RT-PCR/PCR followed by Sizing Analysis
Reporting Name
Psychotropic PGx Panel, VSpecimen Type
VariesSpecimen Minimum Volume
Blood: 1 mL
Saliva, extracted DNA: see Specimen Required
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Varies | Varies | ||
Clinical Information
This panel provides a comprehensive analysis for multiple genes that have strong pharmacogenomic associations with medications used in the treatment of psychiatric disorders, including depression. Each sample is tested for specific variations with known functional impact. Pharmacogenomic data for the following specific variants are reviewed and reported (if present):
-ADRA2A rs1800544
-ANKK1 (DRD2 associated) rs1800497
-CHRNA3 rs1051730
-COMT rs4680
-CYP1A2 *1F, *1K, *6, and *7
-CYP2B6 *4, *5, *6, *7, *8, *9, *11, *12, *13, *14, *15, *16 (also known as *18.002), *18, *19, *20, *22, *26, *27, , *35, *36, and *38
-CYP2C9 *2, *3, *4, *5, *6, *8, *9, *11, *12, *13, *14, *15, *16, *17, *18, *25, *26, *28, *30, *33, and *35
-CYP2C19 *2, *3, *4, *5, *6, *7, *8, *9, *10, *17, and *35
-CYP2D6 *2, *3, *4, *4N, *5, *6, *7, *8, *9, *10, *11, *12, *13, *14A (now known as *114), *14B (now known as *14),*15, *17, *29, *35, *36, *41, *59, *68, and CYP2D6 gene duplication; additional CYP2D6 variants may be detected through the reflex testing process
-CYP3A4 *8, *11, *12, *13, *16, *17, *18, *22, and *26
-CYP3A5 *3, *6, *7, *8, and *9
-DRD2 rs1799978
-EPHX1 rs2234922
-GRIK4 rs1954787
-HLA-A*31:01
-HLA-B*15:02
-HTR2A rs7997012
-HTR2C rs3813929 and rs1414334
-MTHFR rs1801131 and rs1801133
-OPRM1 rs1799971
-SCN1A rs3812718
-SLC6A4 linked polymorphic region (LPR), a 44-base pair promoter insertion/deletion polymorphism
-UGT2B15 rs1902023
Based on the results of each assay, a genotype is assigned, and a phenotype is predicted for each gene. Assessment of multiple genes may assist the ordering clinician with personalized drug recommendations, avoidance of adverse drug reactions, and optimization of drug treatment.
Reference Values
An interpretive report will be provided.
Interpretation
An interpretive report will be provided that focuses on medications and genes with published pharmacogenomic practice guidance by the Clinical Pharmacogenetics Implementation Consortium or other professional organizations,(1-3) where strong US Food and Drug Administration guidance has been issued in drug labels,(4) or where peer-reviewed literature strongly suggests that assessment of pharmacogenomic variants may enhance patient care.(5-8)
For additional information regarding pharmacogenomic genes and their associated medications, see Pharmacogenomic Associations Tables. This resource also includes information regarding enzyme inhibitors and inducers, as well as potential alternate drug choices.
Clinical Reference
1. PharmVar: Pharmacogene Variation Consortium. Updated September 26, 2023. Accessed October 25, 2023. Available at www.pharmvar.org/
2. Clinical Pharmacogenetics Implementation Consortium (CPIC). Updated September 23, 2022. Accessed October 25, 2023.Available at https://cpicpgx.org/
3. Hicks JK, Sangkuhl K, Swen JJ, et al. Clinical Pharmacogenetics Implementation Consortium guideline (CPIC) for CYP2D6 and CYP2C19 genotypes and dosing of tricyclic antidepressants: 2016 update. Clin Pharmacol Ther. 2017;102(1):37-44. doi:10.1002/cpt.597
4. U.S National Library of Medicine: DailyMed. National Institutes of Health. Accessed October 25, 2023. Available at https://dailymed.nlm.nih.gov/dailymed/index.cfm
5. Bradley P, Shiekh M, Mehra V, et al. Improved efficacy with targeted pharmacogenetic-guided treatment of patients with depression and anxiety: A randomized clinical trial demonstrating clinical utility. J Psychiatr Res. 2018;96:100-107
6. Brennan FX, Gardner KR, Lombard J, et al. A naturalistic study of the effectiveness of pharmacogenetic testing to guide treatment in psychiatric patients with mood and anxiety disorders. Prim Care Companion CNS Disord. 2015;17(2). doi:10.4088/PCC.14m01717
7. Perez V, Salavert A, Espadaler J, et al. Efficacy of prospective pharmacogenetic testing in the treatment of major depressive disorder: results of a randomized, double-blind clinical trial. BMC Psychiatry. 2017;17(1):250
8. Reynolds GP, McGowan OO, Dalton CF. Pharmacogenomics in psychiatry: the relevance of receptor and transporter polymorphisms. Br J Clin Pharmacol. 2014;77(4):654-672
9. Crews KR, Monte AA, Huddart R, et al. Clinical Pharmacogenetics Implementation Consortium Guideline for CYP2D6, OPRM1, and COMT Genotypes and Select Opioid Therapy. Clin Pharmacol Ther. 2021;110(4):888-896. doi:10.1002/cpt.2149
Day(s) Performed
Tuesday
Report Available
3 to 14 daysTest Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
81418
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| PSYQP | Psychotropic PGx Panel, V | 94753-1 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 610209 | ADRA2A rs1800544 Genotype | 94401-7 |
| 610210 | ANKK1 rs1800497 Genotype | 94402-5 |
| 610211 | CHRNA3 rs1051730 Genotype | 94403-3 |
| 610212 | COMT rs4680 Genotype | 74511-7 |
| 610213 | CYP1A2 Genotype | 72884-0 |
| 610214 | CYP1A2 Phenotype | 94254-0 |
| 610215 | CYP2B6 Genotype | 72882-4 |
| 610216 | CYP2B6 Phenotype | 79720-9 |
| 610573 | CYP2B6 Activity Score | 104666-3 |
| 610217 | CYP2C19 Genotype | 57132-3 |
| 610218 | CYP2C19 Phenotype | 79714-2 |
| 610574 | CYP2C19 Activity Score | 104667-1 |
| 610219 | CYP2C9 Genotype | 46724-1 |
| 610220 | CYP2C9 Phenotype | 79716-7 |
| 610575 | CYP2C9 Activity Score | 104668-9 |
| 610221 | CYP2D6 Genotype | 40425-1 |
| 610222 | CYP2D6 Phenotype | 79715-9 |
| 610576 | CYP2D6 Activity Score | 104669-7 |
| 610223 | CYP3A4 Genotype | 81139-8 |
| 610224 | CYP3A4 Phenotype | 81145-5 |
| 610225 | CYP3A5 Genotype | 81140-6 |
| 610226 | CYP3A5 Phenotype | 79717-5 |
| 610227 | DRD2 rs1799978 Genotype | 94411-6 |
| 610228 | EPHX1 rs2234922 Genotype | 94412-4 |
| 610229 | GRIK4 rs1954787 Genotype | 94413-2 |
| 610230 | HLA-A*31:01 Genotype | 79712-6 |
| 610231 | HLA-B*15:02 Genotype | 57979-7 |
| 610232 | HTR2A rs7997012 Genotype | 93190-7 |
| 610233 | HTR2C rs3813929 Genotype | 93191-5 |
| 610234 | HTR2C rs1414334 Genotype | 93192-3 |
| 610235 | MTHFR Genotype | 94414-0 |
| 610236 | OPRM1 rs1799971 Genotype | 94415-7 |
| 610237 | SCN1A rs3812718 Genotype | 94416-5 |
| 610238 | SLC6A4 5HTTLPR Genotype | 94417-3 |
| 610239 | UGT2B15 rs1902023 Genotype | 94418-1 |
| 610240 | Interpretation | 69047-9 |
| 610241 | Additional Information | 48767-8 |
| 610242 | Method | 85069-3 |
| 610243 | Disclaimer | 62364-5 |
| 610244 | Reviewed by | 18771-6 |
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| 2D61Z | CYP2D6 Full Gene Sequence | No, (Bill Only) | No |
| 2D62Z | CYP2D6 GEN CYP2D6-2D7 Hybrid | No, (Bill Only) | No |
| 2D63Z | CYP2D6 GEN CYP2D7-2D6 Hybrid | No, (Bill Only) | No |
| 2D64Z | CYP2D6 Nonduplicated Gene | No, (Bill Only) | No |
| 2D65Z | CYP2D6 5' Gene DUP/MLT | No, (Bill Only) | No |
| 2D66Z | CYP2D6 3' Gene DUP/MLT | No, (Bill Only) | No |
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