IBD Flashcards
what is ulcerative colitis
mucosal inflammation confined to rectum and colon
what is Crohns disease
transmural inflammation affecting anywhere from mouth to anus
what drugs may trigger UC and CD
NSAIDS
antibiotics
avoid use of NSAIDs
which disease is fistula and strictures more common
Crohns
what can happen as a complication of UC and CD
hepatobiliary
ocular effects
arthritis - bone dx and osteo
anemia
coagulation
derm conditions
what lab may be used to check for UC and CD vs IBS
fecal calprotectin
cigarette smoking is risk factor in which dx
Crohns
cigarette smoking protective in which dx
UC
rectal involvement common in which dx
UC
perianal dx common in which dx
Crohns
sulfasalazine contains what ingredients
sulfapyridine
mesalamine
what does sulfapyridine do in sulfasalazine
inactive
carries drug to colon
responsible for side effects
what does mesalamine (5-ASA) do in sulfasalazine
active component
exerts local action
anti-inflammatory effects
what dosage form most effective of mesalamine
topical (oral is absorbed in small intestine not colon)
can you use oral mesalamine with topical?
yes
what dosage forms does mesalamine come in
oral (EC)
topical
suppository
sulfasalazine side effects (8)
N/V
headache
anorexia
rash
thrombocytopenia
hepatotoxicity
anemia
hypersensitivity to sulfa
what to monitor if taking sulfasalazine
CBC and LFTs
every other week for 3 months
drug interactions with sulfasalazine
NSAIDs/anticoag/antiplatelets increase bleeding risk
if patients develop bad side effects to sulfasalazine what can they try?
mesalamine
drug interaction with mesalamine
NSAIDs/antiplatelt/antiocoag bleed risk
H2RA/PPI - might affect release
use of corticosteroids in IBD
induction of remission
corticosteroid options
rectal hydrocortisone
PO budesonide
PO prednisone or prednisolone
IV methylprednisolone or hydrocortisone
rectal hydrocortisone absorption
systemic absorption possible
budesonide absorption
extensive first pass
minimal systemic
budesonide brands
Enterocort pH >5.5
Uceris pH > 7
budesonide drug interactions
CYP3A4 inhibitors (grapefrutit, ketoconazole)
increase systemic exposure
short term adverse effects of corticosteroids
hyperglycemia
gastritis
mood changes
elevation of BP
long term adverse effects of corticosteroids
osteoporosis
obesity
HPA suppression
aseptic necrosis
cataracts
growth failure
supplements to give while on corticosteroids
vitamin D 800 U/day
calcium 1000-1500 mg/day
bisphosphonates for >3 month, recurrent use, osteo pt
what might we monitor with corticosteroids and who
bone mineral density (DEXA scan)
>60 year
risk osteo
> 3 month use
reccurent users
immunosupressants used in IBD
methotrexate
azathiopurine
mercaptopurine
cyclosporine
when do we use azathiopurine or mercaptopurine in IBD
failure on ASA
dependent or refractory on steroids
azathiopurine and mercaptopurine induction or maintenance of remission?
maintain remission
how long do we use mercaptopurine and azathiopurine
long term (weeks to months)
side effects of azathiopurine and 6 mercaptopurine
N/V/D
anorexia
stomatitis
bone marrow supression
hepatotoxicity
fever, rash, arthralgia, pancreatitis
monitoring for azathiopurine and mercaptopurine
TPMT
CBC
LFTs
cyclosporine use in IBD
induce remission in UC
how long to use cyclosporine in IBD
short term
bridge therapy
when to give cyclosporine in IBD
refractory/dependent on steroids
side effects of cyclosporine
nephrotoxicity
neurotoxicity
HTN, hyperlipidemia, hyperglycemia
GI upset, gingival hyperplasia, hirsutism
monitoring for cyclophosporine
BP
BUN/SCr
LFTs
trough concentration
drug interactions for cyclosporine
CYP3A and Pgp substrate
increase conc: azole, macrolide, CCBs, grapefruit
decrease conc: phenytoin, rifampin
methotrexate used in which disease for what
Crohns
induce remission
methotrexate dosage form
SQ/IM
methotrexate adverse effects
bone marrow supression
N/V/D
stomatitis
cirrhosis
teratogenic
rash
pulmonary pneumonitis
contraindications to methotrexate
pregnancy
pleural effusions
chronic liver disease/ alcohol abuse
immunodeficiency
blood dyscrasias
leukopenia
CrCl < 40 ml/min
TNF alpha inhibitors
infliximab
adalimumab
golimumab
certolizumab pegol
infliximab MOA
TNF alpha inhib
adalimumab MOA
TNF alpha inhib
golimumab MOA
TNF alpha inhib
certolizumab pegol MOA
TNF alpha inhib
infliximab disease states IBD and uses
CD and UC
mod to severe
induction and maintenance
infliximab dosage form
IV infusion
risk of what increased with infliximab and azathiopurine?
HSTCL
what could we combine with TNF inhibitors to decrease risk of antidrug antibodies
azathiopurine
mercaptopurine
methotrexate
adalimumab disease states IBD and use
CD and UC
induction and maintenance of remission
poor response to infliximab
adalimumab dosage form
SQ injection
golimumab disease states IBD and use
UC
induction and maintenance
certolizumab pegol disease states IBD and use
CD
induction and maintenance
natalizumab MOA
anti alpha integrin
vedolizumab MOA
anti alpha 4b7 integrin
gut selective
natalizumab disease states IBD and use
CD
induction and maintenance remission
fail TNF alpha inhibs
what agents can we not use with natalizumab
TNF alpha inhibs
immunosupressants
vedolizumab disease states IBD and use
UC and CD
induction and remission
natalizumab dosage form
IV infusion
ustekinumab MOA
IL-12 and IL23 antagonist
risankizumab MOA
IL-23 antagonist
mirikizumab MOA
IL-23 p19 antagonist
ustekinumab disease states IBD and use
CD and UC
induction and maintenance
risankizumab disease states IBD and use
CD and UC
induction and maintenance
mirikizumab disease states IBD and use
UC
induction and maintenance
tofacitinib MOA
oral JAK inhibitor
updacitinib MOA
oral JAK 1 inhibitor
ozanimod MOA
oral SP1 inhibitor
etrasimod mOA
oral SP1 inhibitor
tofacitinib disease states IBD and use
UC
induction and maintenance ONLY if failed TNF alpha inhibitor
updactinib disease states IBD and use
UC
CD
induction and remission
only if fail a TNF alpha inhibitor
ozanimod disease states IBD and use
UC
induction and maintenance
etrasimod disease states IBD
UC
induction and maintenance
TNF inhibitors class side effects (7)
infections
infusion related reactions
risk malignancy
HSTCL
demyelinating disease
CHF exacerbation
hepatotoxicity
monitoring for TNF inhibitors baseline
CXR
PPD
Hep B, C
s/sx infection
UA
CBC
SCr
electrolytes
LFTs
monitoring for natalizumab
neuro for PML !!!!!
CXR
PPD
Hep B, C
s/sx infection
UA
CBC
SCr
electrolytes
LFTs
side effects natalizumab
PML
infections
infusion related reactions
risk malignancy
HSTCL
demyelinating disease
CHF exacerbation
hepatotoxicity
what do we test for prior to natalizumab therapy
JC antibody - predicts increased risk of PML
vedolizumab side effects
infections
infusion related reactions
risk malignancy
HSTCL
demyelinating disease
CHF exacerbation
hepatotoxicity
vedolizumab monitoring
CXR
PPD
Hep B, C
s/sx infection
UA
CBC
SCr
electrolytes
LFTs
what can we use with vedolizumab
methotrexate
azathiopurine
6 mercaptopurine
ustekinumab side effects
cutaneous cell carcinoma
neurotoxicity
CV events
infections
infusion related reactions
risk malignancy
HSTCL
demyelinating disease
CHF exacerbation
hepatotoxicity
ustekinumab monitoring
skin
CV
neuro
CXR
PPD
Hep B, C
s/sx infection
UA
CBC
SCr
electrolytes
LFTs
risankizumab side effects
hepatotoxicity/ inc LFTs
inc lipids
infections
infusion related reactions
risk malignancy
HSTCL
demyelinating disease
CHF exacerbation
hepatotoxicity
risankizumab monitoring
LFTs
CXR
PPD
Hep B, C
s/sx infection
UA
CBC
SCr
electrolytes
mirikizumab side effects
increase in LFTs / hepatotox
infections
infusion related reactions
risk malignancy
HSTCL
demyelinating disease
CHF exacerbation
hepatotoxicity
mirikizumab monitoring
LFTs
CXR
PPD
Hep B, C
s/sx infection
UA
CBC
SCr
electrolytes
what to consider if loss of treatment response?
TDM
check anti-drug antibodies and drug concentration
adalimumab and infliximab
what drug levels would be a PK issue?
sub therapeutic
what drug levels would be a PD issue?
therapeutic
what to do if pt has subtherapeutic drug levels and antibodies present?
immune mediated PK failure
switch to diff agent in same class
what to do if pt has subtherapeutc drug levels and no antibodies present?
non-immune mediated PK failure
dose increase
what to do if pt has therapeutic drug levels and no antibodies
mechanistic failure
switch to diff agent in diff class
what to do if pt has therapeutic drug levels and antibodies
test again: false positive?
if still positive switch to diff class
when can we not switch to a biosimilar?
if failure on the Brand name
can we use tofacitinib with other drugs?
not biologics or immunosupressants
can we use updacitinib with other drugs
no biologics or immunosupressants
tofacitinib side effects
neutropenia
black box warning: increase in mortality, CV events, clots, malignancies if CV risk
upper respiratory infections
infections
infusion related reactions
risk malignancy
HSTCL
demyelinating disease
CHF exacerbation
hepatotoxicity
tofacitinib monitoring
skin checks
lipids
CXR
PPD
Hep B, C
s/sx infection
UA
CBC
SCr
electrolytes
upadacitinib side effects
neutropenia
anemia
increased LFTs
upper respiraotry
acne
black boxed warning inc risk mortality, CV risk, clots, malignancy
infections
infusion related reactions
risk malignancy
HSTCL
demyelinating disease
CHF exacerbation
hepatotoxicity
upadacitinib monitoring
lipids
skin exams
CXR
PPD
Hep B, C
s/sx infection
UA
CBC
SCr
electrolyte
which drugs are teratogenic
upadacitinib
methotrexate
ozanimod side effects
like biologics
PML
brady/AV delays
LFT increase
increase BP
decreased FEV1
macular edema
RPLS
ozanimod dosing consideration
7 day titration
ozanimod monitoring
BP
spirometry
ECG
optho
etrasimod monitoring
BP
spirometry
ECG
ortho
etrasimod side effects
brady/AV delays
inc LFTs
inc BP
decreased FEV1
macular edema
RPLS
ozanimod and etrasimod can not be used with what
immunosupressives
ozanimod contrainidcated for who
CV event in past 6 months
sleep apnea
MAOi
etrasimod contraindicated for who
CV event in past 6 months (stroke, TIA, MI, HF, angina)
ozanimod drug interactions
adrenergic/serotenergic drugs
MAOis
CCBs/BBs
tyramine foods
mild-moderate UC symptoms
4-6 stool/day
minimal systemic symptoms
left sided UC mild-moderate treatment
enema
oral mesalamine
topical mesalamine
proctitis UC treatment mild-moderate dosage forms
mesalamine suppository
mild-moderate UC treatment first line extensive dx
oral 5-ASA or mesalamine
CR budesonide
can we use a combo of ASAs
yes, oral and topical
in mild-moderate UC, if unresponsive to 5-ASA what do we do?
change formulation
high dose mesalamine + Rectal mesalamine
CR budesonide
oral prednisone
topical corticosteroids
CR budesonide limited to how long
<8-16 weeks
moderate to severe UC symptoms
4-6 stool per day
+/- blood in the stool
systemic symptoms
moderate to severe active flare treatment
PO prednisone
TNF alpha inhibs / biologics
what drugs should we not use in mod-severe UC induction
methotrexate
thiopurine monotherapy
can we use thiopurines in mod to severe UC
yeah in maintenance
moderate to severe maintenance treatment
TNF alpha inhibs, vedolizumab, ustekinumab with azathioprine potetially
severe fulminant UC symptoms
6-10 BMs per day, blood, systemic
severe-fulminant UC treatment induction
parenteral corticosteroids (methylpred or hydro)
TNF alpha inhibs
cyclosporine
UC maintenance of remission drugs
what we used to induce
mesalamine - mild
biologic
thiopurines
mild - moderate CD treatment induction
sulfasalazine if colonic - not great
CR budesonide
moderate-severe CD treatment induction
PO prednisone
IV methylprednisolone/hydrocrotisone
infliximab/adalimumab + azathioprine (naive to biologics)
thiopurines not reccommended for what
monotherapy in UC and CD moderate to severe
cyclosporine not used for what
crohns
severe- fulminant CD treatment induction
IV methypred or hydro
infliximab or TNF
moderate CD remission tx
thiopurine
methotrexate
TNF alpha antags
(inflix or adal with thiopurine if naive to biologics or immuno)