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Cancer-related Cognitive ImpairmentNCT03452436

Testosterone, Cognition, Ageing, and Cancer

An observational study of Cancer-related Cognitive Impairment, run by University of Aarhus at 1 site in Denmark.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary aim of the study is - in a prospective controlled design - to examine whether treatment-induced decreases in testosterone acts as a mechanism of cancer-related cognitive impairment (CRCI) in testicular and prostate cancer patients. Read more about this study

Who is it for?
Ages 18 years and older, men onlyHealthy volunteers can take part
Conditions the study is for
Cancer-related Cognitive Impairment
How many people
133 participants
Where
1 siteDenmark
Study dates
12 Feb 2018to 1 Mar 2020
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Men only
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Men with testicular and prostate cancer seen at Aarhus University Hospital. Age- and education matched healthy controls recruited from the general population of Central Denmark Region.

Who may be able to join

  • Confirmed diagnosis of testicular cancer
  • Confirmed diagnosis of prostate cancer and prescription of medical castration and radiotherapy

Who cannot join

  • Previous cancer disease
  • Previous central nervous system disease
  • Brain metastases
  • Severe psychiatric disease (e.g., schizophrenia, major depressive disorder)
  • Insufficient Danish proficiency for neuropsychological testing

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Aarhus University Hospital

    Aarhus, 8200

Other trials in Denmark

About this study

Official title: Testosterone, Cognition, Ageing, and Cancer - A Controlled, Prospective Study About the Association Between Testosterone and the Prevalence and Severity of Cancer Related Cognitive Impairment in Testicular and Prostate Cancer Patients.

The primary aim of the study is - in a prospective controlled design - to examine whether treatment-induced decreases in testosterone acts as a mechanism of cancer-related cognitive impairment (CRCI) in testicular and prostate cancer patients.

Secondary aims are 1) to explore whether decreases in testosterone interacts with increasing age to cause more severe CRCI in older patients, 2) to explore underlying neurophysiological (brain morphology) mechanisms of CRCI, and 3) to evaluate selected genetic variants as possible moderators of CRCI.

Read the detailed description

The study will include three groups with a total of 120 participants: A) Forty testicular cancer patients will be included and examined 1) shortly after orchiectomy and prior to any further treatment and 2) at 6 months' follow- up. B) Forty prostate cancer patients will be included and examined at two time-points: 1) prior to initiation of medical castration and radiotherapy and 2) at 6 months' follow- up. C) Forty age- and education-matched healthy controls will be included and assessed at a similar time-interval, i.e., at an initial examination and at a 6 month follow-up. Measures include a battery of neuropsychological/ cognitive tests, questionnaires, blood samples, and Magnetic Resonance Imaging (MRI).

Primary hypothesis

  1. Treatment-induced decreases in testosterone will be associated with decline in global cognitive functioning from baseline to 6 months' follow- up in both testicular and prostate cancer patients. Secondary hypotheses
  2. Treatment-induced decreases in testosterone will be associated with decline in individual cognitive domains (i.e., processing speed, attention, verbal fluency, executive functioning, working memory, verbal learning and memory, visuospatial learning and memory, and visuospatial ability) from baseline to 6 months' follow- up in both testicular and prostate cancer patients.
  3. Decline in cognitive functioning from baseline to 6 months' follow- up in both testicular and prostate cancer patients will correspond to changes in grey matter as measured by T1-weighted MRI.
  4. Decline in cognitive functioning from baseline to 6 months' follow- up in both testicular and prostate cancer patients will correspond to changes in brain white matter as measured with diffusion-weighted MRI.
  5. Treatment-induced decreases in testosterone will be more strongly associated with decline in cognitive functioning in prostate cancer patients compared with testicular cancer patients due to more advanced age in the former group.
  6. Treatment-induced decreases in testosterone will be more strongly associated with decline in cognitive functioning in both testicular and prostate cancer patients carrying the the Apolipoprotein E (APOE) ε4 allele, the Val catechol-O-methyltranferase (COMT) allele, the Val/Val Brain- derived neurotrophic factor (BDNF) genotype, and a short polymorphic CAG repeat length of the Androgen Receptor (AR) gene.
  7. Treatment-induced decreases in testosterone will be associated with increases in neurobehavioral symptoms (i.e., apathy, executive dysfunction, and disinhibition) from baseline to 6 months' follow- up in both testicular and prostate cancer patients.
  8. Treatment-induced decreases in testosterone will be associated with decreases in health-related quality of life from baseline to 6 months' follow- up in both testicular and prostate cancer patients.
  9. Treatment-induced decreases in testosterone will be associated with decreases in perceived cognitive functioning from baseline to 6 months' follow- up in both testicular and prostate cancer patients.
Keywords
Cancer-related Cognitive Impairment, Cognitive Dysfunction, Cognition Disorders, Neurocognitive Disorder, Testosterone, Endocrinology, Testicular Cancer, Prostate Cancer
Medical subject headings
Cognitive Dysfunction, Cognition Disorders, Neurocognitive Disorders, Testicular Neoplasms, Prostatic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT03452436
Study groupRoleWhat they receive
Testicular cancer patientsForty testicular cancer patients included after orchiectomy but prior to any further treatment.
Prostate cancer patientsForty prostate cancer patients included prior to medical castration and radiotherapy.
Healthy controlsForty age- and education-matched healthy controls (20 matched to testicular cancer patients, 20 matched to prostate cancer patients).

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Global cognitive functioning

    Changes in global cognitive composite score as measured with neuropsychological tests specified under "Secondary Outcome Measures".

    Measured: Baseline and 6 months' follow-up

Secondary outcomes (26)
  1. Visuospatial ability

    Changes in visuospatial ability as measured with WAIS-IV Matrix Reasoning.

    Measured: Baseline and 6 months' follow-up

  2. Visuospatial ability

    Changes in visuospatial ability as measured with WAIS-IV Figure Weights.

    Measured: Baseline and 6 months' follow-up

  3. Visuospatial ability

    Changes in visuospatial ability as measured with WAIS-IV Visual Puzzles.

    Measured: Baseline and 6 months' follow-up

  4. Visuospatial ability

    Changes in visuospatial ability as measured with WAIS-IV Block Design.

    Measured: Baseline and 6 months' follow-up

  5. Processing speed

    Changes in processing speed as measured with Trail Making Test A.

    Measured: Baseline and 6 months' follow-up

  6. Processing speed

    Changes in processing speed as measured with WAIS-IV Coding.

    Measured: Baseline and 6 months' follow-up

  7. Attention

    Changes in attention as measured with WAIS-IV Digit Span Forwards.

    Measured: Baseline and 6 months' follow-up

  8. Executive functioning

    Changes in executive functioning as measured with Trail Making Test B.

    Measured: Baseline and 6 months' follow-up

  9. Executive functioning

    Changes in executive functioning as measured with Wisconsin Card Sorting Test.

    Measured: Baseline and 6 months' follow-up

  10. Working memory

    Changes in working memory as measured with WAIS-IV Digit Span Sequencing.

    Measured: Baseline and 6 months' follow-up

  11. Working memory

    Changes in working memory as measured with WAIS-IV Digit Span Backwards.

    Measured: Baseline and 6 months' follow-up

  12. Verbal fluency

    Changes in verbal fluency as measured with Controlled Oral Word Association Test.

    Measured: Baseline and 6 months' follow-up

  13. Verbal learning and memory

    Changes in verbal learning and memory as measured with Hopkins Verbal Learning Test-Revised.

    Measured: Baseline and 6 months' follow-up

  14. Visuospatial learning and memory

    Changes in visuospatial learning and memory as measured with WMS-III Visual Memory.

    Measured: Baseline and 6 months' follow-up

  15. Testosterone levels

    Changes in testosterone levels as measured with liquid chromatography tandem mass spectrometry (LC-MS/MS).

    Measured: Baseline and 6 months' follow-up

  16. Brain grey matter

    Changes in grey matter as measured with T1-weighted MRI.

    Measured: Baseline and 6 months' follow-up

  17. Brain white matter

    Changes in brain white matter as measured with diffusion-weighted MRI.

    Measured: Baseline and 6 months' follow-up

  18. Moderator: APOE genotype

    Genotype of the APOE gene obtained by TaqMan-genotyping the appropriate single nucleotide polymorphisms.

    Measured: Baseline

  19. Moderator: COMT genotype

    Genotype of the COMT gene obtained by TaqMan-genotyping the appropriate single nucleotide polymorphism.

    Measured: Baseline

  20. Moderator: BDNF genotype

    Genotype of the BDNF gene obtained by TaqMan-genotyping the appropriate single nucleotide polymorphism.

    Measured: Baseline

  21. Moderator: CAG repeat length of the AR gene

    CAG repeat lenght of the AR gene obtained by TaqMan-genotyping the appropriate single nucleotide polymorphism.

    Measured: Baseline

  22. Neurobehavioral symptoms (i.e., apathy, executive dysfunction, and disinhibition)

    Changes in neurobehavioral symptoms as measured with The Frontal Systems Behavior Scale (FrsBe).

    Measured: Baseline and 6 months' follow-up

  23. Perceived cognitive functioning

    Changes in perceived cognitive functioning as measured with The Patient Assessment of Own Functioning Inventory (POAFI).

    Measured: Baseline and 6 months' follow-up

  24. Health-related quality of life

    Changes in health-related quality of life as measured with The European Organization for Research and Treatment of Cancer, Quality of Life questionnaire for cancer patients (EORTC QLQ-C30).

    Measured: Baseline and 6 months' follow-up

  25. Health-related quality of life - Prostate Cancer

    Changes in disease specific health-related quality of life as measured with The European Organization for Research and Treatment of Cancer, Quality of Life Prostate Cancer Module (EORTC QLQ-PR25).

    Measured: Baseline and 6 months' follow-up

  26. Health-related quality of life - Testicular Cancer

    Changes in disease specific health-related quality of life as measured with The European Organization for Research and Treatment of Cancer, Quality of Life Testicular Cancer Module (EORTC QLQ-TC25).

    Measured: Baseline and 6 months' follow-up

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Mar 2018
  2. Study start12 Feb 2018
  3. Primary completion1 Mar 2020
  4. Study completion1 Mar 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
133 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03452436
Sponsor's protocol ID
TCAC
Status last verified
Apr 2019
First submitted
1 Feb 2018
Last updated
25 Mar 2020
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Cancer-related Cognitive Impairment, run by University of Aarhus at 1 site in Denmark.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 25 Mar 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Denmark. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Global cognitive functioning (time frame: Baseline and 6 months' follow-up). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Mar 2020.

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