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CompletedNCT04124900Updated Oct 5, 2023

Telomere Associated Variables (TAVs) in Prostate Cancer

An observational study in Prostate Cancer, sponsored by Life Length SL. Completed at 10 sites in 2 countries. Open to male participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-10-05.

Sponsored by Life Length SL · Observational

Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
509
Ages
18 Years and older
Sex
Male
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Study summary

This research project results from the interest in continuing the collaboration with the previous LL-HURS-ONC001 clinical validation study, which gives cause to the present study. LL-HURS-ONC001 was carried out with the participation of HURS' Principal Investigator and the team of experts in prostate cancer, as well as with the participation of the Sponsor's scientific and development team, Life Length SL, led by Dr. Najarro.

The main objective of this study is to demonstrate the efficacy of the PROSTAV test in cutting down on unnecessary biopsies in prostate cancer screening/early diagnosis. PROSTAV is a minimally invasive test, easy to implement as biomarker for prostate cancer diagnosis. The efficacy of the PROSTAV test is clinically validated by the results obtained in a previous study, LL-HURS-ONC001.

The purpose of this study is to advance in the development of new biomarkers in areas where there is a clinical need and where the telomeric profile influences medical decisions within the patient's clinical context. The association level between each individual's telomere biology and the results of the prostate biopsy will be confirmed. Data will be collected to subsequently delve deeper into and accurately establish the effect of this measure in prostate cancer patient management to substantiate its implementation in standard care.

Read the detailed description

In this study, patient inclusion and sample collection are multicentric. Sample analysis will be carried out at Life Length's laboratories at the Madrid Science Park in Canto Blanco university campus.

The study will be initiated immediately after approval by the IRB and has an overall length of 12 months (recruiting time).

The main purpose of the present study is to determine the efficacy of the PROSTAV test as a prostate cancer biomarker developed by Life Length and which has been subject to internal validation in a previous study (LL-HURS-ONC001). For this purpose, the risk-prediction algorithm based on telomere and clinical variables will be used. This allows to back medical decisions in patients with uncertain PC diagnosis based on their PSA levels and the need to perform a prostate biopsy. The standard of care of the participating hospitals and following the European Urology Association recommendations, patients with PSA >3 (prostate-specific antigen) and/or positive digital rectal examination (DRE) are considered at risk for developing PC. However, some medical advisors of the sponsor stated that sometimes patients with PSA levels\<3 are also diagnosed with prostate cancer. For this reason, it has been decided to remove the lower limit of PSA as inclusion criteria.

This study includes only one group of patients defined by inclusion criteria and who will be classified in different groups after a biopsy is performed: 1) patients with a positive biopsy result (diagnosed with significant prostate cancer) (Gleason score >6), and without significant prostate cancer (Gleason score ≤6) or no cancer. Before knowing the histopathological results of the biopsy, the PROSTAV test will be performed. Depending on the results of the PROSTAV test, the physician will write down which decision he or she would have made as to performing or not a biopsy: zero (0) for a low-risk result in the PROSTAV test, in which case no biopsy would have been performed; and one (1) for a PC risk result in the PROSTAV test, in which case a biopsy would have been performed. Regardless of what the result of the PROSTAV test is, all patients will undergo a biopsy since the result in PROSTAV test will not influence the standard of care in this study.

A 10 ml. sample is required from all subjects included in the study for telomere analysis. This sample is obtained from blood drawn before performing the diagnostic prostate biopsy. The sample must be drawn within a 90-day period prior to biopsy.

The design of the present project allows for one single study phase. This study is a clinical efficacy validation study in patients in whom the results of potential biopsy sparing are compared after evaluating medical decisions based on the use of the PROSTAV test.

The point of origin of the samples are the different participating centers that will use the samples for application of the telomere biology evaluation techniques.

Mononuclear cells in peripheral blood from all samples will be isolated and analyzed to determine values of Telomere Associated Variables (TAVs).

For the calculation of the telomere variables, the Sponsor will use the High-Throughput Quantitative Fluorescent in Situ Hybridization technique (HT-Q-FISH).

Data resulting from each biological sample will be analyzed to obtain a defined risk assessment based on the algorithm of the PROSTAV test. The purpose of the analysis is the integration of the data resulting from telomere measurements (average, median, percentage of short telomeres, ratio of short and long telomeres, etc.) and PSA and free PSA levels, age and the DRE results of the patient's medical record to determine whether they are low-risk patients, in which a biopsy would not be necessary to confirm presence of prostate cancer. By doing this, it is intending to demonstrate the efficacy of the PROSTAV test, since biopsies would be performed in any case and also show the test's sensitivity and specificity values in clinical practice.

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Conditions studied

  • Prostate Cancer

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Keywords

  • prostate cancer
  • prostate biopsy
  • telomere
  • biomarker
  • screening
  • prostate
  • cancer
  • biopsy
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In context

Prostatic Neoplasms

6,370 studies on the registry are indexed under Prostatic Neoplasms; 1,399 are open to participants now.

This study's enrollment of 509 is above the median of 200 across 1,181 observational studies indexed under Prostatic Neoplasms.

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Lead sponsor

This is the only study on the registry with Life Length SL as lead sponsor.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
Male
Sampling method
Non-probability sample

Study population

The study population will include cases with high PSA levels (PSA\<10 ng/ml) and with indication criterion for prostate cancer biopsy based on prostate cancer risk-related endpoints.

The study is composed of one single subject cohort. After risk evaluation, prostate biopsies will be performed for diagnostic purposes on all recruited patients. The cases are sorted into two groups after diagnosis:

  • Group 1: patients at prostate cancer risk diagnosed with significant prostate cancer after prostatic biopsy (Gleason >6).
  • Group 2: patients at prostate cancer risk diagnosed free of cancer after prostate biopsy. There will be a subdivision within this group in patients without significant prostate cancer:

    • No cancer
    • Non-significant prostate cancer (Gleason ≤6).

Inclusion criteria

  • To be over 18 years of age.
  • To have given written consent to participate in the study.
  • To be classified as a patient at prostate cancer risk according to criteria of high PSA levels (\<10 ng/ml) and the urologist's decision to perform a prostate biopsy in standard of care.
  • To be diagnosed by a prostate biopsy with or without concomitant MRI.
  • Caucasic race

Exclusion criteria

Exclusion Criteria:

  • Patients that have received Alpha-5 reductase therapy.
  • Existing serious active liver, lung or kidney disease, as well as severe active infections.
  • Existing serious disease or psychiatric disorder that prevents them from expressing informed consent and/or if patients are not able to follow protocol procedures and give their informed consent.
  • Patients at risk resulting from conventional blood extraction.
  • Subjects with active neoplasm diagnosed during the past five years.
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Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
509 participants (actual)
Patient registry
No
Biospecimen retention
Samples with dna

Groups and cohorts

  • patients at prostate cancer risk diagnosed

    The study is composed of one single subject cohort. After risk evaluation, prostate biopsies will be performed for diagnostic purposes on all recruited patients. The cases are sorted into two groups after diagnosis: * Group 1: patients at prostate cancer risk diagnosed with significant prostate cancer after prostatic biopsy (Gleason \>6). * Group 2: patients at prostate cancer risk diagnosed free of cancer after prostate biopsy. There will be a subdivision within this group in patients without significant prostate cancer ( No cancer o Non-significant prostate cancer (Gleason ≤6)).

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What researchers measure

Primary outcomes

  1. Telomere Associated Variables

    This is a clinical multicenter study focused on evaluating the efficacy of the PROSTAV test in patients at risk of prostate cancer based on data of telomere associated variables (TAV) as risk-score. The study comprises one single prospective observational phase.

    Time frame: One day single measurement

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Study locations

10 sites
  • Urological Research Network, Corp.
    Hialeah, Florida 33016, United States
  • Houston Methodist Research Institute
    Houston, Texas 77030, United States
  • Hospital Infanta Margarita
    Cabra, Córdoba 14940, Spain
  • Instituto Médico Tecnológico
    Barcelona, 08024, Spain
  • University Hospital Reina Sofía
    Córdoba, 14004, Spain
  • ROC Clinic
    Madrid, 28010, Spain
  • Instituto de Urología LYX
    Madrid, 28020, Spain
  • Hospital Universitario Ramón y Cajal
    Madrid, 28034, Spain
  • Hospital Universitario Doce de Octubre
    Madrid, 28041, Spain
  • Instituto Valenciano de Oncología
    Valencia, 46009, Spain
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References and documents

Publications

  • Hanahan D, Weinberg RA. The hallmarks of cancer. Cell. 2000 Jan 7;100(1):57-70. doi: 10.1016/s0092-8674(00)81683-9. No abstract available. PubMed 10647931 ↗
  • Shay JW, Wright WE, Werbin H. Defining the molecular mechanisms of human cell immortalization. Biochim Biophys Acta. 1991 Apr 16;1072(1):1-7. doi: 10.1016/0304-419x(91)90003-4. PubMed 1850299 ↗
  • Hahn WC, Counter CM, Lundberg AS, Beijersbergen RL, Brooks MW, Weinberg RA. Creation of human tumour cells with defined genetic elements. Nature. 1999 Jul 29;400(6743):464-8. doi: 10.1038/22780. PubMed 10440377 ↗
  • Wright WE, Shay JW. Telomere dynamics in cancer progression and prevention: fundamental differences in human and mouse telomere biology. Nat Med. 2000 Aug;6(8):849-51. doi: 10.1038/78592. PubMed 10932210 ↗
  • Shay JW, Zou Y, Hiyama E, Wright WE. Telomerase and cancer. Hum Mol Genet. 2001 Apr;10(7):677-85. doi: 10.1093/hmg/10.7.677. PubMed 11257099 ↗
  • Kim NW, Piatyszek MA, Prowse KR, Harley CB, West MD, Ho PL, Coviello GM, Wright WE, Weinrich SL, Shay JW. Specific association of human telomerase activity with immortal cells and cancer. Science. 1994 Dec 23;266(5193):2011-5. doi: 10.1126/science.7605428. PubMed 7605428 ↗
  • Shay JW, Bacchetti S. A survey of telomerase activity in human cancer. Eur J Cancer. 1997 Apr;33(5):787-91. doi: 10.1016/S0959-8049(97)00062-2. PubMed 9282118 ↗
  • Breslow RA, Shay JW, Gazdar AF, Srivastava S. Telomerase and early detection of cancer: a National Cancer Institute workshop. J Natl Cancer Inst. 1997 May 7;89(9):618-23. doi: 10.1093/jnci/89.9.618. No abstract available. PubMed 9150185 ↗
  • Shay JW. Telomerase in cancer: diagnostic, prognostic, and therapeutic implications. Cancer J Sci Am. 1998 May;4 Suppl 1:S26-34. No abstract available. PubMed 9619268 ↗
  • Norton JC, Holt SE, Wright WE, Shay JW. Enhanced detection of human telomerase activity. DNA Cell Biol. 1998 Mar;17(3):217-9. doi: 10.1089/dna.1998.17.217. PubMed 9539101 ↗
  • Hiyama E, Hiyama K, Yokoyama T, Matsuura Y, Piatyszek MA, Shay JW. Correlating telomerase activity levels with human neuroblastoma outcomes. Nat Med. 1995 Mar;1(3):249-55. doi: 10.1038/nm0395-249. PubMed 7585042 ↗
  • Sommerfeld HJ, Meeker AK, Piatyszek MA, Bova GS, Shay JW, Coffey DS. Telomerase activity: a prevalent marker of malignant human prostate tissue. Cancer Res. 1996 Jan 1;56(1):218-22. PubMed 8548767 ↗
  • Mehle C, Piatyszek MA, Ljungberg B, Shay JW, Roos G. Telomerase activity in human renal cell carcinoma. Oncogene. 1996 Jul 4;13(1):161-6. PubMed 8700542 ↗
  • Tatsumoto N, Hiyama E, Murakami Y, Imamura Y, Shay JW, Matsuura Y, Yokoyama T. High telomerase activity is an independent prognostic indicator of poor outcome in colorectal cancer. Clin Cancer Res. 2000 Jul;6(7):2696-701. PubMed 10914712 ↗
  • Shay JW, Gazdar AF. Telomerase in the early detection of cancer. J Clin Pathol. 1997 Feb;50(2):106-9. doi: 10.1136/jcp.50.2.106. PubMed 9155689 ↗
  • Gurel B, Iwata T, Koh CM, Yegnasubramanian S, Nelson WG, De Marzo AM. Molecular alterations in prostate cancer as diagnostic, prognostic, and therapeutic targets. Adv Anat Pathol. 2008 Nov;15(6):319-31. doi: 10.1097/PAP.0b013e31818a5c19. PubMed 18948763 ↗
  • Heaphy CM, Meeker AK. The potential utility of telomere-related markers for cancer diagnosis. J Cell Mol Med. 2011 Jun;15(6):1227-38. doi: 10.1111/j.1582-4934.2011.01284.x. PubMed 21352473 ↗
  • Hou L, Joyce BT, Gao T, Liu L, Zheng Y, Penedo FJ, Liu S, Zhang W, Bergan R, Dai Q, Vokonas P, Hoxha M, Schwartz J, Baccarelli A. Blood Telomere Length Attrition and Cancer Development in the Normative Aging Study Cohort. EBioMedicine. 2015 Apr 13;2(6):591-6. doi: 10.1016/j.ebiom.2015.04.008. eCollection 2015 Jun. PubMed 26288820 ↗
  • Mottet N, Bellmunt J, Bolla M, Briers E, Cumberbatch MG, De Santis M, Fossati N, Gross T, Henry AM, Joniau S, Lam TB, Mason MD, Matveev VB, Moldovan PC, van den Bergh RCN, Van den Broeck T, van der Poel HG, van der Kwast TH, Rouviere O, Schoots IG, Wiegel T, Cornford P. EAU-ESTRO-SIOG Guidelines on Prostate Cancer. Part 1: Screening, Diagnosis, and Local Treatment with Curative Intent. Eur Urol. 2017 Apr;71(4):618-629. doi: 10.1016/j.eururo.2016.08.003. Epub 2016 Aug 25. PubMed 27568654 ↗
  • Humphrey PA, Moch H, Cubilla AL, Ulbright TM, Reuter VE. The 2016 WHO Classification of Tumours of the Urinary System and Male Genital Organs-Part B: Prostate and Bladder Tumours. Eur Urol. 2016 Jul;70(1):106-119. doi: 10.1016/j.eururo.2016.02.028. Epub 2016 Mar 17. PubMed 26996659 ↗

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 5, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04124900
Lead sponsor
Life Length SL
Responsible party
Sponsor
First posted
Oct 14, 2019
Start date
Jul 15, 2019
Primary completion
Jul 31, 2023
Completion
Sep 21, 2023
Last update
Oct 5, 2023

Study contacts

Maria José Requena
principal investigator · University Hospital Reina Sofía
Enrique Gómez, MD
principal investigator · University Hospital Reina Sofía

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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