Onco 1: Prostate Flashcards

(62 cards)

1
Q

risk factors for prostate cancer

A
  • Black
  • immediate family hx
  • age
  • genetics:
    - BRCA-2 mutation
    - Lynch syndrome
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2
Q

prostate cancer screening

A
  • consider harm of dx and overtreatment (chance of false positive)
  • donโ€™t screen pts over 70 (5 year suvival rate is already so good)
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3
Q

presentation of localized prostate cancer

NOT locally invasive

A

asymptomatic

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4
Q

presentation of locally invasice prostate cancer

not localized

A

urinary s/s

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5
Q

presentation of advanced prostate cancer

A
  • back painn, cord compression
  • lower extremity edema
  • pathologic fractures
  • anemia
  • wt loss
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6
Q

prostate cancer prognosit factors

A
  • prostate speific antigen (PSA)
  • tumor size and exxtent
  • hostologic grade (gleason score)
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7
Q

PSA level indications

A
  • PSA > 10: 67% chance of prostate cancer
  • normlaly <4, though pts cna develop prostate cnacer even withnormla PSA levles
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8
Q

gleason socre

A

scores cancer cells
- score 1: nearly normal cells
- 5: high grade tumor

scores are added together
- total 2-4 less aggressive
- 7-10 more aggressive

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9
Q

T, N, M staging for tumors

A
  • T = tumor size
  • N = node (lymph)
    - NX: not assessed
    - N0: negative
    - N1:positive
  • M = metastass
    - M0: no metastases
    - M1: metastases
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10
Q

goal of prstate cnacer therapy for localized or locally invasive cancer

A
  • conrol disease and symptoms
  • decreased morbidity and mortality

curative

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11
Q

goal of prstate cnacer therapy for advanced or metastatic cancer

A
  • palliative
  • increased qol
  • prolonged survival
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12
Q

treatment for localized/locally invasive postate cancer and low risk for recurrence

A
  • observation
  • very low risk and expected survival >20 (or low risk and >10): surveillance and can consider radiaiton
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13
Q

treatment for localized/locally invasive postate cancer and intermediate risk for recurrence

A
  • 5-10 years expected survivail: observation or radiation
  • > 10 yrs: surgery or radiation
  • ADT is an option if pt also unfavorable
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14
Q

treatment for localized/locally invasive postate cancer and high and very high risk for recurrence

A
  • < 5 years AND asymp: observation or ADT or radiation
  • > 5 yrs OR symptomatic
    - radiation + ADT (+/- abiraterone in very high risk)
    - surgery + pelvic lymph node dissection (+/- radiation +/- ADT)
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15
Q

treatment for regional postate cancer

A
  • < 5 years AND asymp: observation or ADT
  • > 5 yrs OR symptomatic
    - radiation + ADT (+/- abiraterone in very high risk)
    - ADT +/- abiraterone
    - surgery + pelvic lymph node dissection (+/- radiation +/- ADT) in select pts
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16
Q

treatment for advanced postate cancer and castrate naive/sensitive

A
  • nonmetastatic: monitoring or ADT
  • metastatic: ADT plus one of the following
    - abiraterone
    - enzalutamide
    - apalutamide
    - docetaxel 6 cycles
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17
Q

treatment for advanced postate cancer and castrate resistant and recurrent (and non-metastatic)

A

ADT +
- PSADT >10 months: monitoring or other seocndary therapy*
- PSADT < 10 months: apalutamide, enzalutamide, darolutamide, or secondary therapy

PSADT (PSA doubling time)

*othersecondary therapy: first gen antiandrogen, cs, antiandrogen withdrawal, ketoconazole +hydrocortisone

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18
Q

casstrate resistant definition

A

serum < 50 but disease progresssion

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19
Q

treatment for advanced adenocarcinoma postate cancer and castrate resistant and metastatic

A
  • no prior docetaxel or hormone: aberaterone, docetaxel, enzalutamide
  • no prior docetaxel, prior hormone: docetaxel (olaparib if BRCA mutation)
  • prior docetaxel, no prior hormone: abieraterone, cabazitaxel, enzalutamide
  • prior docetxel, prior hormone: cabazitaxel, docetaxel rechallenge

second line is the oppossite you did for first line (chemo vs hormone)

  • Radium 223 INSTEAD of chemo if sympotatic bone metastaes
  • Sipulecel-T in spcial cases
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20
Q

treatment for advanced small cell or neuroendocrine postate cancer and castrate resistant and metastatic

A
  • chemo
    - cisplatin/etoposide
    - carboplatin/etoposide
    - docetaxel/carboplatin
    - cabazitaxel/carboplatin
  • supportive care

if unsure if small cell or adenocarcinoma, treat as adeno

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21
Q

secondary hormone therapies for the treatment of prostate cancer

A
  • second gen antiandrogen: only for M0 and PSADT < 10 months (except enzalutamide whcih you can use in M1 too)
  • androgenn metabolizm inhibitor (abiraterone): M1 only
  • other (M0 or M1)
    - first gen antiandrogen
    - CS: hydrocortisone, prednisone, dexamethasone
    - antiandrogen withdrawal
    - ketoconazole + hydrocortisone
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22
Q

Second gen anti-androgen agents

A
  • apalutamide
  • darolutamide
  • enzalutamide
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23
Q

first gen anti-androgen agents

A
  • nilutamide
  • flutamide
  • bicalutamdie
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24
Q

ADT

A

andrgeon deprivation therapy

  • surgical castration (has been replaced with medical)
  • medical castration: LHRH agonist OR LHRH antag
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25
LHRH agonsit MOA
1. mimic endogenous LHRH 2. release LH, FSH 3. long term LHRH agonism -> downregulation 4. overall decrease in testosterone production
26
gaol serum testosterone after treatmetn
<50 after a month
27
LHRH agonist agents
- goserelin - leuprolide - triptorelin - histerelin ## Footnote dosing ranges form q1mo to q24mo depending on agent and dose
28
acute LHRH agonist ADR
- tumor flare: give antiandrogen before and for 2-4 weeks during LHRH agonist admin to reduce tuor falre - hot flash - ED - edema - gynecomasstia - inj site reaction
29
long term LHRH agonist (and LHRH antag) ADR
- osteoporosis: obtain a baseline dexa - clincal fracture - obestiy - inuslin resistance, increased risk of DM - CV events - HLD
30
supportive care in prostate cancer
- get that dexa scan at baseline adn yearly - Ca 1000-2000mg QD - Vit D 400-800 IU QD
31
prevention of skeletal related events (SRE) and possible antiumor effect
- zoledronic acid - denosumab
32
preferred osteoporisis treatment in prostate cnacer pts
zoledronic acid
33
androgen depreivation-induced bone loss in prostate cnacer treatment
denosumab
34
LHRH antag MOA
1. bind reversibly to LHRH receptors 2. decrease in FSH and LH 3. decrease in testosterone
35
LHRH antag agents
- degarelix Qmo - relugolix QD
36
advantages of LHRH antags
- fastser decrease in testoerone than agonits (goal levels at day 7 vs 28) - no tumor flare
37
disadvantages of LHRH antag
- cost - dosing schedule
38
antiandrogen MOA
- inhibit androgen reuptake and/or androgen binding in target tissues - competitive inhibitor for bidning fo dihydroxytestoerone adn testosterone
39
antiandrogen first gen ADR
- diarrhea - gynecomastia - elevated LFT - hot flash ## Footnote monitor: - LFT Qmo then periodically - testpsterone, PSA - pulmonary function (nilutamide only)
40
combined androgen blockade
- LHRH agonsit or antag + atiandrogen - associate diwth more ADR - per NCCN: no benefit over casstration alone | can consider after several months of not at goal
41
prostate cancer: hormon therapy and relapse
most pts initially respond but almost all relapse 2-4 yrs after starting therapy - tumor coposed of hormon *independent* cells - tumor stimulated by extratesticular androgens which are intracellularly conerted to dihydroxytestosterone
42
apalutamide ADR
- fatigue - HTN - rash - sezures - nausea, diarrhea - arthralgias - fracutre risk - peripheral edema - seizures (super rare, but if it happens, dc): SPARTAN trial
43
darolutamide admin
PO BID with food ## Footnote renal dose adjust
44
darolutamide ADR
- fatigue - HTN - rash - no seziure risk (ARAMIS tiral) | better tolerated than apalutamide
44
enzalutamide DDI
- dose reduce if conmittant strong CYP2C8 inibitor - dose increase if conmitant strong CYP3A4 inducer
45
enzalutamide ADR
- diarrhea - fatigue - HA - myalgias - edema - increased seizure risk (AFFIRM trial)
46
docetaxel MOA
1. promote assembly of microtubules and inhibit depolymeraization of tubulin 2. stabilize microtubules in cell 3. inhibition of DNA, RNA, protein synthesis | cabazitaxel: similar MOA but has activity in docetaxel-resistant tumors
47
docetaxel ADR
- myelosuppression - alopecia - edema - peripheral neuropathy - hypersensitivyt reaction | caution in hepatic impairment
48
abiraterone MOA
inhibit CYP17 (required for biosynthesis)
49
abiraterone ADR
- diarrhea - edema - hypoK - HTN - hepatotox - hyperTG - mineralocorticoid exess: give with prednisone | monitor: K, phosphate, BP, LFTs Qmo
50
olaparib MOA
inhibit ADP-ribose and PARP (aid in DNA repair)
51
olaparib ADR
- N/V/D - fatigue - anemia - neutro and leukopenia - abdominal pain - URI - increased risk of developing secondary cancer (myelodysplastic syndrome and AML) | monitor blood counts, SCr, s/s of pneumonitis
52
Radium 223 MOA
1. alpha particle release 2. dsDNA breakdwonn 3. antitumor effect on bone metases
53
Radium 223 ADR
- peripheral edema - nuasea - myelosuppression
54
Sipuleucel-T MOA
- dentritic cell vaccine - enahnces T cell response to prostate acid phosphatase (PAP)
55
Sipuleucel-T admin
Q2W for 3 doses
56
Sipuleucel-T ADR
- infusion reaction - chills, fever - faiuge - HA
57
Sipuleucel-T use
only in castrate resistant metastatic (but NOT liver metastases) who are asymp
58
cabazitaxel ADR
- febrile neutropeni - hypersensitivity reaction - mucositis - edema
59
lutetium 177 usage
only in PMSA (+) M1 castrate resistant prostate cancer as a second line agent
60
lutetium 177 admin
IV Q6W for 6 doses
61
lutetium 177 ADR
- fatigue - dry mouth - nausea - myelosuppression