Mayo Clinic, Rochester, MN, Rochester, MN
Samith Thomas Kochuparambil , Ben Yiming Zhang , Shaun M. Riska , Douglas W. Mahoney , Shannon McDonnell , Adam M Lee , Fernando Quevedo , Brian Addis Costello , Henry Clement Pitot , Ricardo Ribeiro , Rui Medeiros , Catia Monteiro , Augusto Nogueira , Joaquina Mauricio , Avelino Manuel Fraga , Fernando Eduardo Calais Da Silva , James Robert Cerhan , Manish Kohli
Background: Predictive markers of response to AA are not known. In a prior study, we found that 8 single nucleotide polymorphisms (SNPs) from 4 candidate hormone-related genes (JAK2, TRMT11, NKX3-1 and HSD17B12)were associated with response to AA in HSPC in a North American cohort of 519 subjects. We attempt to replicate these findings in a cohort of Portuguese patients. Methods: The Portuguese cohort consisted of 308 HSPC patients, and the primary endpoint was time to AA failure, defined as time from initiating continuous AA to two serial PSA increases over the nadir, initiation of chemotherapy for progressive disease, or clinical or imaging based progression, whichever came first. For each SNP, we calculated hazard ratios (HRs) and 95% confidence intervals (CI) for time to AA failure using a recessive model with adjustment for Gleason score (GS). Results: The median age of the Portuguese cohort was 69 years (range 43, 85). The GS distribution was 35% subjects with GS≥8; 35% with GS=7 and 30% with GS<7. Median time to AA failure for the cohort was 1.8 years (IQ range: 0.3, 3.6). Association of each SNP with time to AA failure is shown in the Table. None of the SNPs replicated. However, there was a suggestive inverse association for rs10503733 (NKX3.1) with time to AA failure (P=0.07). Conclusions: While we were not able to replicate our initial findings, there was an unexpected association with rs10503733 (NKX3.1 gene) that may warrant additional clinical validation.
SNP | Gene | Dominant/ recessive | Recessive model adjusted HR (95% CI) | Adjusted P-value |
---|---|---|---|---|
rs9388462 | TRMT11 | 232/67 | 0.85 (0.53-1.36) | 0.50 |
rs2295005 | TRMT11 | 245/55 | 1.13 (0.68-1.86) | 0.64 |
rs1268121 | TRMT11 | 294/09 | 0.93 (0.34-2.53) | 0.89 |
rs10503733 | NKX3-1 | 281/17 | 0.27 (0.07-1.11) | 0.070 |
rs7005368 | NKX3-1 | 304/02 | -- | -- |
rs3808850 | JAK2 | 275/26 | 0.81 (0.40-1.71) | 0.62 |
rs4372063 | JAK2 | 258/41 | 0.87 (0.49-1.56) | 0.65 |
rs11037662 | HSD17B12 | 297/07 | 2.41 (0.76-7.64) | 0.14 |
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Abstract Disclosures
2013 ASCO Annual Meeting
First Author: Manish Kohli
2015 ASCO Annual Meeting
First Author: Samith Thomas Kochuparambil
2023 ASCO Annual Meeting
First Author: Samantha Goodenow
2024 ASCO Genitourinary Cancers Symposium
First Author: Alicia K. Morgans