Committee papers Flashcards
Rare SE of lspar reported in a dog?
pancreatitis
RR and PFS for rescue MOMP
50%; 56 d
no diff T vs B cells
What do all melanoma in dogs and cats express?
tyrosinase - no correlation w/ pigment, MHC1, or histo claasification
Which cells does IL12 cytokine activate?
Th1 and Tc
What is NHS-IL12?
immuncytokine of ab targeting necrotic tumor regions, linked ot IL12
What AE are noted with NHS-IL12 in dogs with melanoma?
thrombo, elevated LE, fever, vasculitis
IL10 and intratumoral CD8 cell decreased or increased with NHS-IL12 in melanoma?
increased
what is the tolerable dose of NHS-IL12?
0.8mg/mg2 SQ q 28 d (if response)
If untx how many melanomas in horses become malignant?
2/3rd
what is MC skin tumor in horses?
melanoma (gray horses)
Scottish deerhounds have possible linkage between phenotype and markers on what chromosome associated with OSA?
Chr. 34
what is incidence of OSA in scottish deerhounds?
> 15%
What were prog factors for scottish deerhounds and OSA?
gender and genotype
in solid tumors, to what depth can hyperthermia reach therapeutic levels?
> 4cm
What is MR appearance of canine MCT?
most hyperintense on T2 and isointense T1 and all CE
Is there a sig diff in MRI features of metastatic MCT LN?
mets larger and generally more heterogenous (but not stat sig)
What type of LSA is reported in yellow naped Amazon parrot?
GI T cell LSA
What is MTD for palladia and dox combination?
25mg/m2 dox q 21 d
DLT neutropenia
what was CR, PFS and MST of 12 week vs 19 weeks CHOP?
90% CR in both (95% ORR)
- 12 wk PFS 141 d and 19 wk 208 d
- 12 wk MST 234 d vs 348d
what is diff in DI in 12 week vs 19 week CHOP?
58% increased DI for dox and cytoxan vs 21% reduced for vinc
what is MC small cell GI LSA In cats?
CD3+ w/ epitheliotropism
what is ORR and duration in cats w/ small cell GI LSA?
96% with MST 786d
what % of dogs with cut OSA mets have mets to lung and bone?
86% lung
5% bone
what was time to develop and MST of cut OSA mets in dgos?
160 days with MST 55 days
what was MST for cut OSA mets tx w/ sx + chemo vs chemo vs supportive?
3mn vs 2mn vs 11d
What is MTD carbo + palladia
200mg/m2
What enzymes are directly inhibited by Zinc oxide?
ERK and AKT
What unique features does Zinc oxide have?
unique surface
ROS induction
lipid peroxidation
pH/ionic gradient changes in cancer cells and microenvironment
What was successful tx of a oral FSA in an alpaca?
sx followed by RT after recurrence resulted in >2 yr ST (110 weeks)
What drug and where was contamination found at VTH?
carboplatin on biological safety cabinet
What features were used to develop risk score for dogs w/ hemoabd?
weight, plasma protein, platelet count and CXR
Using HeLP score, what % of HSA in low, medium and high risk groups?
36%
76%
96%
Of malignant splenic tumors, how common are they HSA in small (<27.8kg) and large dogs?
46% small
65% large
What findings were more common in all dogs dx with splenic HSA?
preop anemia
hemoab
thrombo
blood transfusion
In canine nasal tumors, what RTK is phosphorylated?
EGFR1 most common
NOT VEGFR2, PDGFR alpha/beta, cKIT
What is mechanism of palladia efficacy in canine nasal tumors?
unknown -not likely VEGFR, PDGFR or kit as not phosphorylated
What is ORR and MST for intermittent single agent dox in BCL?
78% RR
MST 170d
Does gadoxetate disodium contrast enhanced MRI find more or less lesions than usual MRI for HCC?
yes ID new lesions in 3/7 patients
With gadoxetate disodium contrast MRI of livers, a signal intensity ratio of <1 indicates what?
retained but impaired liver fnx
what small breed dog is predisposed to HS?
mini schnauzers
What may predispose mini schnauzers to HS?
inherited risk factor likely based on pedigree analysis
what is OR of prior joint dz in a limb affected by periarticular HS vs control dogs?
13.42
How commonly did stifle joints with PAHS have dz and what was most common?
88% - CrCL rupture
what is RR for combination CCNU/dox for HS and MST?
58%
185d
Substitution of mito for dox in first line tx of canine LSA had was ORR, PFI and MST?
CHOP 97%, PFI 208; MST 348d
CMOP 100%, PFI 165; MST 234
What is RV1001?
PI3K inhibitor
What tumor type and RR has been noted with RV1001?
LSA in dogs with 62% and 77% RR
what was main toxicity of RV1001?
hepatobiliary (DLT) and GI
what is most common initial diagnosis for lingual TZL?
plasma cell tumor
what clinical findings and outcome were noted with lingual TZL?
11/12 lymphocytosis +/- LN involvement
7/12 CR and 4/12 SD
What is RR and MST for canine small cell GI LSA?
70%
424d
What is most common phenotype of small GI LSA in dogs?
T cell (95%) with 60% epitheliotropic
Protein kinase CK2 is increased or decreased in cancer?
increased
what is tenfibgen and what is it’s use?
ligand to target Tenascin-C receptors - used to deliver siRNA targeting protein kinase CK2 to tumor tissue
What is ORR for cats with MM to chemotherapy?
71-83% (melphalan vs cytoxan)
What is MST for cats with MM tx with cytoxan and melphalan and were they different?
cytoxan 13mn
melphalan 8mn
Not diff
What is the role of protein kinase CK2?
activate NFkB, WNT-B catenin, PI3K-AKT pathway, inactivate tumor suppressors (PTEN) and suppress apoptosis
what feline tumor type expresses protein kinase CK2 and what occurs with inhibition in vitro?
SCC
siRNA targeting resulted in decrease viability and apoptosis
What the important targets on protein kinase CK2?
CK2alpha (most important) and CK2alpha’
Was tenfibgen coated tumor specific nanoparticles with CK2 miRNA targets effective?
2 samples reduced IHC score
what were SE of tenfibgen coated tumor specific nanoparticles with CK2 miRNA targets
MC grade 1-2 weight loss/anorexia; gr 3 necrosis in 1 cat and asymp gr 4 ALT and CK
Does tenfibgen coated tumor specific nanoparticles with CK2 miRNA targets induce tumor response?
1 PR and 3 SD in feline OSCC
T/F Aurora kinase inhibitors are effective in OSA cell lines
false
Vinblastine as 2nd rescue for canine LSA has what RR and PFS?
25%
PFS 30d
MRI signal intensity of what organs may diff btw hematopoiectic neoplasia?
visual and ROI evaluated liver < skeletal muscle in affected (healthy > than skeletal muscle)
what is the DFS and MST for OSA dogs tx w/ amputation, carbo, MC +/- palladia?
w/o palladia: DFI 215d nad MST 242d
w/ palladia DFI 233 and 318 (no diff)
What was 1 yr survival for OSA dogs tx w/ amputation, carbo, MC +/- palladia?
38% and 35%
contoured BSA differed from routine formula by how much?
-9 to +19%
what is eBAT?
bispecific angiotoxin of pseudomonas exotoxin fused with EGF and uPAR
what was 6mn ST in eBAT vs SOC dogs?
70% vs 38%
what human cancer expresses uPAR and EGFR?
pediatric sarcoma
what is MOA of iniparib?
PARP inhibitor
what is KPT-335?
SINE inhibitor
what is MTD of KPT-335?
1.75mg/kg twice weekly (later study used 1.5mg/kg)
what is DLT of KPT-335?
hepatotox, anorexia, weight loss
what is impact of repeated cycles of eBAT in HSA?
increased AE and no benefit vs SOC
What is utility of FDG PET CT for HSA in dogs?
2/9 dogs had lesions not noted on CXR/AUS
what is ORR of KPT-335 and response in T cells?
ORR 37%
T cell ORR 71%
what is valspodar?
selective inhibitor of ATP binding cassette B1 transporter (ABCB1)
what was impact of valspodar on lymphoid progenitor cells (CD34+, CD117+, CD133+)?
no difference, although safe
What was efficacy of salmonella encoding IL2 combination w/ amputation and dox for OSA?
Longer DFI vs dox alone but not vs carbo/dox
What is RR in gross dz setting to 5-FU/carboplatin in dogs?
43%
what is most common AE with 5-FU/carbo in dogs?
myelosuppression (plt > neut) and one episode ataxia
what MOA do 6-TG and Zebularine share?
DMNT 1 inhibitors
Does SQ administration of excipient free nanoparticle paclitaxel have systemic absorption?
no - so may be good intratumoral drug
what is MTD of excipient free nanoparticle paclitaxel?
unknown - doses used 80-136mg/m2 SQ and IV
what PK model fits hyaluronan-cisplatin nanoconjugate?
3 compartment
what cancer type had CR to hyaluronan-cisplatin nanoconjugate?
nasal and oral SCC
what is MC AE with hyaluronan-cisplatin nanoconjugate?
40% myelosuppression, 12% cardiotox
T/F Papillomavirus is a causative agent of canine orbital adenomas
false