SNPMiner Trials by Shray Alag


SNPMiner Trials: Clinical Trial Report


Report for Clinical Trial NCT02347111

Developed by Shray Alag, 2019.
SNP Clinical Trial Gene

A Pilot and Feasibility Study to Determine if a Common Atrial Fibrillation Risk Locus Modulates Differential Response to Antiarrhythmic Drugs

In this pilot and feasibility study, the investigators will enroll patients with frequent symptomatic episodes of atrial fibrillation (AF) in a cross-over study testing two different classes of anti arrhythmic drugs (AADs). This pilot and feasibility study will provide preliminary data for a larger study in which the investigators will test the hypothesis that a common AF genetic risk allele modulates response to different AADs.

NCT02347111 Atrial Fibrillation
MeSH: Atrial Fibrillation
HPO: Atrial fibrillation Paroxysmal atrial fibrillation

2 Interventions

Name: Flecainide

Description: flecainide up to 150mg twice daily for the control of atrial fibrillation

Type: Drug

flecainide 1st sotalol 1st

Name: Sotalol

Description: sotalol up to 120mg twice daily for the control of atrial fibrillation

Type: Drug

flecainide 1st sotalol 1st


Primary Outcomes

Measure: AF burden (Percent of time subject is in atrial fibrillation)

Time: 3 months

Purpose: Treatment

Allocation: Randomized

Crossover Assignment


There are 4 SNPs

SNPs


1 rs10033464

However, a SNP at the 4q25 locus (rs10033464) was significantly associated with successful symptom control (odds ratio [OR] 2.97, 95% confidence interval [CI] 1.42-6.21,


2 rs17570669

Blood processing, DNA extraction, and genotyping: Blood samples will be drawn into ethylenediamenetetraacetic acid (EDTA) tubes and immediately refrigerated at 4° C. Plasma will be separated by centrifugation and stored at -80° C. DNA will be extracted from the buffy coat using a commercially available kit (Qiagen Puregene, Valencia, California) and stored at -20° C. Study participants will be genotyped for three common chr4q25 SNPs (rs2200733, rs17570669, and rs3853445) using Sanger sequencing.

Then we will create a second model that replaces the separate chr4q25 SNP terms for a combined chr4q25 risk score calculated by adding the beta-coefficients for the genotypes at rs2200733, rs17570669, and rs3853445 found in the first model.


3 rs2200733

Blood processing, DNA extraction, and genotyping: Blood samples will be drawn into ethylenediamenetetraacetic acid (EDTA) tubes and immediately refrigerated at 4° C. Plasma will be separated by centrifugation and stored at -80° C. DNA will be extracted from the buffy coat using a commercially available kit (Qiagen Puregene, Valencia, California) and stored at -20° C. Study participants will be genotyped for three common chr4q25 SNPs (rs2200733, rs17570669, and rs3853445) using Sanger sequencing.

Then we will create a second model that replaces the separate chr4q25 SNP terms for a combined chr4q25 risk score calculated by adding the beta-coefficients for the genotypes at rs2200733, rs17570669, and rs3853445 found in the first model.


4 rs3853445

Blood processing, DNA extraction, and genotyping: Blood samples will be drawn into ethylenediamenetetraacetic acid (EDTA) tubes and immediately refrigerated at 4° C. Plasma will be separated by centrifugation and stored at -80° C. DNA will be extracted from the buffy coat using a commercially available kit (Qiagen Puregene, Valencia, California) and stored at -20° C. Study participants will be genotyped for three common chr4q25 SNPs (rs2200733, rs17570669, and rs3853445) using Sanger sequencing.

Then we will create a second model that replaces the separate chr4q25 SNP terms for a combined chr4q25 risk score calculated by adding the beta-coefficients for the genotypes at rs2200733, rs17570669, and rs3853445 found in the first model.



HPO Nodes


HPO:
Atrial fibrillation
Genes 62
CACNA1C KCNE2 MFAP5 CACNA2D1 TNNI3K FLNC GJA5 NPPA CACNB2 MYH7 MYL4 KCNA5 ANK2 NUP155 LMNA SLC25A4 HCN4 DTNA KCNH2 KCNJ2 FOS KCNJ5 RRM2B POLG SCN1B TLL1 SCN2B MYPN SCN4B AGPAT2 SCN5A MYOZ2 GATAD1 KCNQ1 NKX2-5 ABCC9 TWNK CASQ2 TAB2 XK CAVIN1 BSCL2 TMEM43 GATA5 ACTN2 CAV1 PPARG PRKAG2 TNNC1 DMPK POLG2 TNNI3 SGO1 TNNT2 PLN NEXN TRDN TTN CSRP3 RYR2 SMAD3 TBX5
Paroxysmal atrial fibrillation
Genes 12
CSRP3 KCNJ5 SCN1B SCN2B KCNE2 MYL4 SCN5A ABCC9 KCNA5 PRKAG2 TBX5 KCNJ2