Natalia

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So far Natalia Hotsaliuk has created 9 blog entries.

Tom’s Story: A Loss of Trust and The Importance of PSA Testing

2024-11-19T19:14:09+00:00

This true story is being shared at the request of the deceased.

Tom Lucas retired as a captain with the Edmonton Fire Department after 30 years of service at the age of 54. He and his wife decided to retire to a midsize Okanagan Valley city. Tom enjoyed an active lifestyle including winters in Arizona and Mexico. While a firefighter, he meticulously followed required medical protocol, which included a PSA (Prostate Specific Antigen) test. This blood test is used primarily to screen for prostate cancer. While enjoying his retirement, Tom continued to have annual medical reviews but without PSA testing as his medical doctor did not order them.

Approximately 8 years after arriving in the Okanagan, Tom’s wife queried the lack of PSA testing while reminding Tom that his brother had been diagnosed with prostate cancer. Tom agreed that he was remiss to not have requested PSA testing. On his next medical review, he stated his desire for a PSA test. The medical doctor informed Tom that he did not order them for his patients as the results were “inconclusive”. Tom pressed for testing which showed a PSA score of 38. A normal score for a person of Tom’s age is 3.

When abnormal results are derived from a PSA screening test, a biopsy may be recommended. A biopsy was undertaken in which 8 probes were inserted. Each of the 8 probes showed positive cancer. Tom’s results were rated as a Gleason Score 8. The maximum is 10. A Gleason Score biopsy result greater than 7 can be an indication of intermediate or high risk of prostate cancer. 1.

After reviewing Tom’s results, the urologist informed Tom that he had a very aggressive form of prostate cancer. He estimated Tom’s life expectancy at 3-5 years. Tom contacted the Interior Cancer Centre in Kelowna and began a prolonged involvement including treatment, clinical trials and oncological supervision.

Tom became a meticulous researcher of prostate cancer, treatment and results. His newly found disease did not lesson his adventurous lifestyle, but it now included becoming a disciple of spreading the “word” about prostate cancer and the importance of continuous PSA testing. Tom became an active member of his local Prostate Cancer Support Group and engaged in considerable outreach presentations.

Tom became the guru of his support group regarding current information relating to prostate cancer. He continued to live as active a lifestyle as his declining health permitted. His tenacity and “joie de vie” resulted in him experiencing life for 8 years from the time of initial diagnosis of the prostate cancer.

Tom made a request to this writer that his story be shared so that men will see the need to take responsibility of looking after their own health needs and recognize that a PSA test is an accurate indicator that may require further investigation and consultation by patient with medical personnel.

Acknowledgment: This story is shared with permission from PROSTAID.

Tom’s Story: A Loss of Trust and The Importance of PSA Testing2024-11-19T19:14:09+00:00

Brad’s Journey: Advocacy and Support in Fighting Prostate Cancer

2024-11-19T19:01:18+00:00

Brad:

I had been getting my PSA (Prostate Specific Antigen) tested for a few years along with a DRE (digital rectal examine). In 2008 my family doctor noticed a rise in the PSA along with hardness to my prostate gland and at 53 years old I was referred to a Urologist who recommended that a biopsy be done.

The biopsy confirmed I had Pca (Prostate Cancer). My Gleason score was 7 (3+4) and within 3 months my PSA had risen from 4.47 to 5.7. Because of the velocity and my age I was not considered a good candidate for external beam radiation or brachytherapy, so I had a radical prostatectomy. The surgery went well, and pathology indicated my margins were clear. It was felt my cancer was contained in the gland which had been removed. But unfortunately, within in 6 months my PSA had started to rise. Less than a year after surgery I was referred to a radio-oncologist and my PSA had risen back up to 2.0.

Radiation of the pelvic area was not available to me because of my age and my recurrence was felt to be microscopic, meaning they would have to radiate my entire pelvic region with no assurance they would be radiating the cancer. I was referred to a medical oncologist who enrolled me into a clinical trial involving a relatively new chemotherapy, at the time, (Taxotere / Docetaxel) combined with ADT (Androgen Depravation Therapy). 6 months of chemotherapy along with 18 months of ADT. My PSA dropped immediately but within 6 months of finishing the ADT the PSA began a slow rise. When I say slow rise, I mean slow. It took less than 4 years to go from 0.2 to 13.8.

Until then regular bone and CT scans did not reveal any metastasis but a scan in November 2016 revealed a 2 cm tumor in the prostate bed. After a referral to the tumor board, it was decided that I would immediately restart ADT in an attempt to shrink the tumor to allow for radiation and minimize potential damage to vital organs. The plan worked and in June 2017 I completed 20 rounds of radiation. My PSA was again undetectable, and scans showed no evidence of the tumor.

In January 2018 my PSA was still undetectable and we decided I could take a treatment holiday. Unfortunately, within 6 months, my PSA was rising again and within the year I was back on ADT. This time my PSA did not drop to undetectable but hovered around 2 until March 2020 when it rose to 3. By September my PSA doubling time had gone from over 14 months to 6 months.

Fortunately, I again was able to enroll in a study involving a new drug which had just been approved by Health Canada in February that year. Since starting Darolutamide in October 2020 my PSA has remained undetectable.

I am one of the luckier men who has minimal side effects. My spouse attends all my doctor appointments and keeps me on track. I have a supportive family and a well-informed support network of friends whom I met in PROSTAID Calgary.

3 Key Take Aways?

  1. Be your own best advocate. Do your research. Be prepared to have informed discussions with your medical team.
  2. Do not discount the importance and value of clinical trials and studies. They can change the course of standards of care for those who might be on a similar journey.
  3. Rely on the support of family, friends, and support groups. They are invaluable. This is a marathon, and you cannot do it alone. Also, you won’t believe, the huge benefit to you when you help others.”

Acknowledgment: This story is shared with permission from PROSTAID.

Brad’s Journey: Advocacy and Support in Fighting Prostate Cancer2024-11-19T19:01:18+00:00

Dr. John Lewis Speaks on “How can I protect myself from prostate cancer?” on CBC Podcast The Dose

2024-11-02T21:10:41+00:00

Listen as Dr. John Lewis speaks on the CBC’s podcast The Dose by Dr. Brian Goldman: Prostate cancer is the most common cancer among Canadian men, with an estimated one in eight men expected to be diagnosed during their lifetime. John Lewis, a prostate cancer researcher and University of Alberta oncology professor, says better screening tools will help detect the disease more effectively in men.

Dr. John Lewis Speaks on “How can I protect myself from prostate cancer?” on CBC Podcast The Dose2024-11-02T21:10:41+00:00

Sean Secord Speaks on Prostate Cancer Screening at PROSTAID

2024-10-25T20:02:49+00:00

Sean Secord had the opportunity to speak at PROSTAID’s monthly meeting in Calgary, where he discussed the importance of prostate cancer screening and the impact ClarityDX Prostate can have on patients’ lives. The group was very engaged and raised thoughtful questions around screening frequency, accuracy, and what the future of prostate health management could look like with ClarityDX Prostate.

Sean Secord Speaks on Prostate Cancer Screening at PROSTAID2024-10-25T20:02:49+00:00

Nanostics Gets Featured on New Podcast by AIMSS

2024-10-16T19:45:34+00:00

Nanostics was excited to be the first to be featured on a new podcast by AIMSS, called ByteMed! Watch us delve into the transformative world of diagnostic technology. Discover how the innovative platform, ClarityDX®, harnesses advanced machine learning algorithms to create noninvasive disease risk scores, particularly in the realm of cancer detection.

Sean Secord and Robert Paproski from Nanostics Inc. had the chance to discuss the critical importance of early prostate cancer detection and how ClarityDX leverages machine learning to improve patient outcomes. They also shared some interesting insights—be sure to listen to the full conversation!

Nanostics Gets Featured on New Podcast by AIMSS2024-10-16T19:45:34+00:00

Breakthrough test provides clarity for prostate cancer diagnosis

2024-09-09T21:55:20+00:00

With support from the Canadian Cancer Society, Dr John Lewis took his research to new heights with an innovative test for prostate cancer screening.

“This test can tell you if you have a low or high risk of aggressive prostate cancer,” Dr Lewis says. “It’s an addition to the PSA test and designed to give men and their doctors more clarity so they can make informed decisions about whether to proceed with a biopsy.”

Click below to read the full article.

Breakthrough test provides clarity for prostate cancer diagnosis2024-09-09T21:55:20+00:00

Nanostics Gets Featured on Global News

2024-07-31T16:08:31+00:00

Prostate cancer is one of the most common cancers among men in Canada and early detection can save lives. See Nicole Stillger from Global News explain how ClarityDX Prostate works, and how support from Alberta Innovates helps advance our research.

Nanostics Gets Featured on Global News2024-07-31T16:08:31+00:00

Research supporting ClarityDX Prostate published in Nature Digital Medicine

2024-07-03T19:51:25+00:00
Published 26 June 2024

Development of an effective predictive screening tool for prostate cancer using the ClarityDX machine learning platform

M. Eric Hyndman, Robert J. Paproski, Adam Kinnaird, Adrian Fairey, Leonard Marks, Christian P. Pavlovich, Sean A. Fletcher, Roman Zachoval, Vanda Adamcova, Jiri Stejskal, Armen Aprikian, Christopher J. D. Wallis, Desmond Pink, Catalina Vasquez, Perrin H. Beatty & John D. Lewis

Abstract
The current prostate cancer (PCa) screen test, prostate-specific antigen (PSA), has a high sensitivity for PCa but low specificity for high-risk, clinically significant PCa (csPCa), resulting in overdiagnosis and overtreatment of non-csPCa. Early identification of csPCa while avoiding unnecessary biopsies in men with non-csPCa is challenging. We built an optimized machine learning platform (ClarityDX) and showed its utility in generating models predicting csPCa. Integrating the ClarityDX platform with blood-based biomarkers for clinically significant PCa and clinical biomarker data from a 3448-patient cohort, we developed a test to stratify patients’ risk of csPCa; called ClarityDX Prostate. When predicting high risk cancer in the validation cohort, ClarityDX Prostate showed 95% sensitivity, 35% specificity, 54% positive predictive value, and 91% negative predictive value, at a ≥ 25% threshold. Using ClarityDX Prostate at this threshold could avoid up to 35% of unnecessary prostate biopsies. ClarityDX Prostate showed higher accuracy for predicting the risk of csPCa than PSA alone and the tested model-based risk calculators. Using this test as a reflex test in men with elevated PSA levels may help patients and their healthcare providers decide if a prostate biopsy is necessary.
Research supporting ClarityDX Prostate published in Nature Digital Medicine2024-07-03T19:51:25+00:00

Best Startup Workplace of the Year

2024-05-07T22:46:59+00:00

Nanostics is thrilled to announce that we’ve been awarded Best Startup Workplace of the Year in the 2024 YEG Startup Community Awards! We extend heartfelt congratulations to all the nominees. We also express our gratitude to the YEG Startup Community volunteers for their organization of this exceptional event.

This achievement speaks volumes about the incredible culture created by our team of dedicated employees. Their hard work, dedication, and commitment to excellence have truly set us apart. We are immensely grateful for their contributions in making Nanostics a truly exceptional workplace. Thank you to each and every member of our team for your unwavering efforts. Together, we continue to drive innovation forward!

YEG Startup Awards 2024
Best Startup Workplace of the Year2024-05-07T22:46:59+00:00
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