WARNINGS
Included as part of the PRECAUTIONS section.
PRECAUTIONS
Thromboembolic Disorders and Other Vascular Problems
Stop ORTHO EVRA if an arterial or deep venous thrombotic
event (VTE) occurs.
Stop ORTHO EVRA if there is unexplained loss of vision,
proptosis, diplopia, papilledema, or retinal vascular lesions. Evaluate for
retinal vein thrombosis immediately.
If feasible, stop ORTHO EVRA at least 4 weeks before and
through 2 weeks after major surgery or other surgeries known to have an
elevated risk of VTE. Discontinue use of ORTHO EVRA during prolonged
immobilization and resume treatment based on clinical judgment.
Start ORTHO EVRA no earlier than 4 weeks after delivery,
in women who are not breastfeeding. The risk of postpartum VTE decreases after
the third postpartum week, whereas the risk of ovulation increases after the
third postpartum week.
The use of combination hormonal contraceptives (CHCs)
increases the risk of VTE. Known risk factors for VTE include smoking, obesity
and family history of VTE, in addition to other factors that contraindicate use
of CHCs [see CONTRAINDICATIONS].
Five epidemiologic studies1-9 that assessed
the risk of VTE associated with use of ORTHO EVRA are described below. These
are 4 case control studies, that compared VTE rates among women using ORTHO
EVRA to rates among women using an OC comparator, and an FDA-funded cohort
study that estimated and compared VTE rates among women using various hormonal
contraceptives, including ORTHO EVRA. All five studies were retrospective
studies from U.S. electronic healthcare databases and included women aged 15-44
(10-55 in the FDA-funded study) who used ORTHO EVRA or oral contraceptives
containing 20-35 mcg of ethinyl estradiol (EE) and levonorgestrel (LNG),
norethindrone, or norgestimate (NGM). NGM is the prodrug for NGMN, the
progestin in ORTHO EVRA.
Some of the data from the epidemiologic studies suggest
an increased risk of VTE with use of ORTHO EVRA compared to use of some
combined oral contraceptives (see Table 1). The studies used slightly different
designs and reported relative risk estimates ranging from 1.2 to 2.2. None of
the studies have adjusted for body mass index, smoking, and family history of
VTE, which are potential confounders. The interpretations of these relative
risk estimates range from no increase in risk to an approximate doubling of
risk. One of the studies found a statistically significant increased risk of
VTE for current users of ORTHO EVRA.
The five studies are:
- The i3 Ingenix study with NGM-containing oral
contraceptives as the comparator, including a 24-month extension, based on the
Ingenix Research Datamart; this study included patient chart review to confirm
the VTE occurrence.
- The Boston Collaborative Drug Surveillance Program
(BCDSP) with NGM-containing oral contraceptives as the comparator (BCDSP NGM),
including two extensions of 17 and 14 months, respectively, based on the
Pharmetrics database, using only non-fatal idiopathic cases. VTE cases were not
confirmed by chart review.
- BCDSP with LNG-containing oral contraceptives as the
comparator, based on the Pharmetrics database, using only non-fatal idiopathic
cases. VTE cases were not confirmed by chart review.
- BCDSP with LNG-containing oral contraceptives as the
comparator, based on the Marketscan database, using only non-fatal idiopathic
cases. VTE cases were not confirmed by chart review.
- FDA-funded study with two groups of comparators [1)
LNG-containing oral contraceptives, and 2) oral contraceptives that contain
LNG, norethindrone or norgestimate], based on Kaiser Permanente and Medicaid
databases. This study used all cases of VTE (idiopathic and non-idiopathic) and
included patient chart review to confirm the VTE occurrence.
The i3 Ingenix and BCDSP NGM studies have provided data
on additional cases identified in study extensions; however, each study
extension was not powered to provide independent estimates of risk. The pooled
estimates provide the most reliable estimates of VTE risk. Risk ratios from the
original and various extensions of the i3 Ingenix and BCDSP NGM studies are
provided in Table 1. The results of these studies are presented in Figure 1.
Table 1: Estimates (Risk Ratios) of Venous
Thromboembolism Risk in Current Users of ORTHO EVRA Compared to Combined Oral
Contraceptive Users
Epidemiologic StudyA |
Comparator Product |
Risk Ratios (95% CI) |
i3 Ingenix NGM Study in Ingenix Research Datamart1,6,7,8 |
NGM/35 mcg EEB |
2.2C (1.2-4.0)D |
BCDSPE NGM Study in Pharmetrics database2,3,5 |
NGM/35 mcg EE |
1.2 (0.9-1.8)F |
BCDSPE LNG Study in Pharmetrics database4 |
LNGG/30 mcg EE |
2.0 (0.9-4.1)H |
BCDSPE LNG Study in Marketscan database4 |
LNG/30 mcg EE |
1.3 (0.8-2.1)I |
FDA-funded Study in Kaiser Permanente and Medicaid databasesJ, K, 9 |
“All progestinsL”/20-35 mcg EE |
1.4 (0.9-2.0) |
LNG/ 30 mcg EE |
1.2 (0.8-1.9) |
A“New users” – i.e., women with no prior exposure to the
drug studied during a pre-specified time period – are considered to be the most
informative population to study in pharmacoepidemiologic safety studies. All
estimates took account of new-user status. The method and time period used to
identify “new users” varied from study to study.
BNGM = norgestimate; EE = ethinyl estradiol
CIncrease in risk of VTE is statistically significant
DPooled risk ratio from references 1 and 6 covering the initial
33-month study plus 24-month extension. [Initial 33 months of data: Risk Ratio
(95% CI) = 2.5C(1.1-5.5); Separate estimate from the 24 months of
data on new cases not included in the previous estimate: Risk Ratio (95% CI) =
1.4 (0.5-3.7)]. These risk ratios are based on idiopathic cases (those in women
without other known risk factors for VTE). If all VTE cases are considered, the
pooled risk ratio and 95% CI are 2.0 (1.2-3.3)C.
EBCDSP = Boston Collaborative Drug Surveillance Program; the risk
ratios are based on idiopathic cases.
FPooled risk ratio from references 2, 3 and 5 covering the initial
36-month study, plus 17-month and 14-month extensions. [Initial 36 months of
data: Risk Ratio (95% CI) = 0.9 (0.5-1.6); Separate estimate from 17 months of
data on new cases not included in the previous estimate: Risk Ratio (95% CI) =
1.1 (0.6-2.1); Separate estimate from 14 months of data on new cases not
included in the previous estimates: Risk Ratio (95% CI) = 2.4C (1.2-5.0)]
GLNG = levonorgestrel
H48 months of data.
I69 months of data.
J84 months of data in FDA-funded study
KResults for “All users,” i.e., initiation and continuing use of
study combination hormonal contraception: “All progestins”/20-35 mcg EE, Risk
Ratio (95% CI) = 1.6 (1.2-2.1)C and LNG/30 mcg EE, Risk Ratio (95%
CI) = 1.3 (1.0-1.8).
LIncludes the following progestins: LNG, norethindrone,
norgestimate. |
Figure 1: VTE Risk of ORTHO
EVRA Relative to Combined Oral Contraceptives
aAll estimates took account of new-user status. The method
and time period used to identify “new users” varied from study to study.
bIncludes the following progestins: levonorgestrel (LNG),
norethindrone, norgestimate (NGM).
BCDSP = Boston Collaborative Drug Surveillance Program
EE = ethinyl estradiol
An increased risk of
thromboembolic and thrombotic disease associated with the use of combination
hormonal contraceptives (CHCs) is well established. Although the absolute VTE
rates are increased for users of CHCs compared to non-users, the rates
associated with pregnancy are even greater, especially during the post-partum
period (see Figure 2).
The frequency of VTE in women
using CHCs has been estimated to be 3 to 12 cases per 10,000 woman-years.
The risk of VTE is highest
during the first year of use of combination hormonal contraception. The risk of
thromboembolic disease due to combination hormonal contraceptives gradually
disappears after use is discontinued.
Figure 2 shows the risk of developing a VTE for women who
are not pregnant and do not use CHCs, for women who use CHCs, for pregnant
women, and for women in the post-partum period.
To put the risk of developing a VTE into perspective: If
10,000 women who are not pregnant and do not use CHCs are followed for one
year, between 1 and 5 of these women will develop a VTE.
Figure 2: Likelihood of Developing a V TE
*CHC=combination hormonal
contraception
**Pregnancy data based on actual duration of pregnancy in the reference
studies. Based on a model assumption that pregnancy duration is nine months,
the rate is 7 to 27 per 10,000 WY.
Use of CHCs also increases the
risk of arterial thromboses such as, cerebrovascular events (thrombotic and
hemorrhagic strokes) and myocardial infarctions, especially in women with other
risk factors for these events. In general, the risk is greatest among older ( > 35
years of age), hypertensive women who also smoke. Use CHCs with caution in
women with cardiovascular disease risk factors.
PK Profile of Ethinyl Estradiol
The PK profile for the ORTHO
EVRA patch is different from the PK profile for oral contraceptives in that it
has a higher Css and a lower Cmax. AUC and average Css for EE are approximately
60% higher in women using ORTHO EVRA compared with women using an oral
contraceptive containing EE 35 mcg. In contrast, the Cmax for EE is
approximately 25% lower in women using ORTHO EVRA. Inter-subject
variability results in increased exposure to EE in some women using either
ORTHO EVRA or oral contraceptives. However, inter-subject variability in women
using ORTHO EVRA is higher. It is not known whether there are changes in the
risk of serious adverse events based on the differences in PK profiles of EE in
women using ORTHO EVRA compared with women using oral contraceptives containing
30-35 mcg of EE. Increased estrogen exposure may increase the risk of adverse
events, including venous thromboembolism. [See BOXED WARNING and CLINICAL
PHARMACOLOGY.]
Liver Disease
Impaired Liver Function
Do not use ORTHO EVRA in women with liver disease, such
as acute viral hepatitis or severe (decompensated) cirrhosis of liver [see CONTRAINDICATIONS].
Discontinue ORTHO EVRA if jaundice develops. Acute or chronic disturbances of
liver function may necessitate the discontinuation of CHC use until markers of
liver function return to normal and CHC causation has been excluded.
Liver Tumors
ORTHO EVRA is contraindicated in women with benign and
malignant liver tumors [see CONTRAINDICATIONS]. Hepatic adenomas are
associated with CHC use. An estimate of the attributable risk is 3.3
cases/100,000 CHC users. Rupture of hepatic adenomas may cause death through
intra-abdominal hemorrhage.
Studies have shown an increased risk of developing
hepatocellular carcinoma in long-term ( > 8 years) CHC users. However, the
risk of liver cancers in CHC users is less than one case per million users.
High Blood Pressure
ORTHO EVRA is contraindicated in women with uncontrolled
hypertension or hypertension with vascular disease [see CONTRAINDICATIONS].
For women with well-controlled hypertension, monitor blood pressure and stop
ORTHO EVRA if blood pressure rises significantly.
An increase in blood pressure has been reported in women
taking hormonal contraceptives, and this increase is more likely in older women
with extended duration of use. The incidence of hypertension increases with
increasing concentrations of progestin.
Gallbladder Disease
Studies suggest a small increased relative risk of
developing gallbladder disease among CHC users. Use of CHCs may also worsen
existing gallbladder disease. A past history of CHC-related cholestasis
predicts an increased risk with subsequent CHC use. Women with a history of
pregnancy-related cholestasis may be at an increased risk for CHC-related
cholestasis.
Carbohydrate and Lipid Metabolic Effects
Carefully monitor prediabetic and diabetic women who take
ORTHO EVRA. CHCs may decrease glucose tolerance in a dose-related fashion. In a
6-cycle clinical trial with ORTHO EVRA there were no clinically significant
changes in fasting blood glucose from baseline to end of treatment.
Consider alternative contraception for women with
uncontrolled dyslipidemia. A small proportion of women will have adverse lipid
changes while on hormonal contraceptives.
Women with hypertriglyceridemia, or a family history
thereof, may be at an increased risk of pancreatitis when using hormonal
contraceptives.
Headache
If a woman taking ORTHO EVRA develops new headaches that
are recurrent, persistent or severe, evaluate the cause and discontinue ORTHO
EVRA if indicated.
Consider discontinuation of ORTHO EVRA in the case of increased
frequency or severity of migraine during hormonal contraceptive use (which may
be prodromal of a cerebrovascular event).
Bleeding Irregularities
Unscheduled Bleeding and Spotting
Unscheduled (breakthrough) bleeding and spotting
sometimes occur in women using ORTHO EVRA. Consider non-hormonal causes and
take adequate diagnostic measures to rule out malignancy, other pathology, or
pregnancy in the event of unscheduled bleeding, as in the case of any abnormal
vaginal bleeding. If pathology and pregnancy have been excluded, time or a
change to another contraceptive product may resolve the bleeding.
In the clinical trials, most women started their
scheduled (withdrawal) bleeding on the fourth day of the drug-free interval,
and the median duration of withdrawal bleeding was 5 to 6 days. On average, 26%
of women per cycle had 7 or more total days of bleeding and/or spotting (this
includes both scheduled and unscheduled bleeding and/or spotting). Three
clinical studies of the efficacy of ORTHO EVRA in preventing pregnancy assessed
scheduled and unscheduled bleeding [see Clinical Studies] in 3,330 women
who completed 22,155 cycles of exposure. A total of 36 (1.1%) of the women
discontinued ORTHO EVRA at least in part, due to bleeding or spotting.
Table 2 summarizes the proportion of subjects who
experienced unscheduled (breakthrough) bleeding/spotting by treatment cycle.
Table 2: Unscheduled (Breakthrough) Bleeding/Spotting
(Subjects Evaluable for Efficacy)
Treatment Cycle |
Pooled data from 3 studies
N=3319 |
n |
%a |
Cycle 1 |
2994 |
18.2 |
Cycle 2 |
2743 |
11.9 |
Cycle 3 |
2699 |
11.6 |
Cycle 4 |
2541 |
10.1 |
Cycle 5 |
2532 |
9.2 |
Cycle 6 |
2494 |
8.3 |
Cycle 7 |
698 |
8.3 |
Cycle 8 |
692 |
8.7 |
Cycle 9 |
654 |
8.6 |
Cycle 10 |
621 |
8.7 |
Cycle 11 |
631 |
8.9 |
Cycle 12 |
617 |
6.3 |
Cycle 13 |
611 |
8.0 |
aPercentage of subjects with breakthrough bleeding/spotting
events. |
Amenorrhea and Oligomenorrhea
In the event of amenorrhea,
consider the possibility of pregnancy. If the patient has not adhered to the
prescribed dosing schedule (missed one patch or started the patch on a day
later than she should have), consider the possibility of pregnancy at the time
of the first missed period and take appropriate diagnostic measures. If the
patient has adhered to the prescribed regimen and misses two consecutive
periods, rule out pregnancy.
Some women may encounter
amenorrhea or oligomenorrhea after discontinuation of hormonal contraceptive
use, especially when such a condition was pre-existent.
Hormonal Contraceptive Use
Before or During Early Pregnancy
Extensive epidemiological
studies have revealed no increased risk of birth defects in women who have used
oral contraceptives prior to pregnancy. Studies also do not suggest a
teratogenic effect, particularly in so far as cardiac anomalies and limb
reduction defects are concerned, when oral contraceptives are taken
inadvertently during early pregnancy. Discontinue ORTHO EVRA use if pregnancy
is confirmed.
Administration of CHCs should
not be used as a test for pregnancy [see Use In Specific Populations].
Depression
Carefully observe women with a history
of depression and discontinue ORTHO EVRA if depression recurs to a serious
degree.
Carcinoma of Breasts and Cervix
ORTHO EVRA is contraindicated in women who currently have
or have had breast cancer because breast cancer may be hormonally sensitive [see
CONTRAINDICATIONS].
There is substantial evidence that CHCs do not increase
the incidence of breast cancer. Although some past studies have suggested that
CHCs might increase the incidence of breast cancer, more recent studies have
not confirmed such findings.
Some studies suggest that combination oral contraceptive
use has been associated with an increase in the risk of cervical cancer or
intraepithelial neoplasia. However, there continues to be controversy about the
extent to which such findings may be due to differences in sexual behavior and
other factors.
Effect on Binding Globulins
The estrogen component of CHCs may raise the serum
concentrations of thyroxine-binding globulin, sex hormone-binding globulin and
cortisol-binding globulin. The dose of replacement thyroid hormone or cortisol
therapy may need to be increased.
Monitoring
A woman who is taking hormonal contraceptive should have
a yearly visit with her healthcare provider for a blood pressure check and for
other indicated healthcare.
Hereditary Angioedema
In women with hereditary angioedema, exogenous estrogens
may induce or exacerbate symptoms of angioedema.
Chloasma
Chloasma may occasionally occur, especially in women with
a history of chloasma gravidarum. Women with a tendency to chloasma should
avoid exposure to the sun or ultraviolet radiation while using ORTHO EVRA.
REFERENCES
1. Cole JA, Norman H, Doherty
M, Walker AM. Venous Thromboembolism, Myocardial Infarction, and Stroke among
Transdermal Contraceptive System Users. Obstetrics & Gynecology 2007;
109(2):339-346.
2. Jick SS, Kaye JA, Russmann
S, Jick H. Risk of nonfatal venous thromboembolism in women using a
contraceptive transdermal patch and oral contraceptives containing norgestimate
and 35 mcg of ethinyl estradiol. Contraception 2006; 73: 223-228.
3. Jick S, Kaye JA, Jick H.
Further results on the risk of nonfatal venous thromboembolism in users of the
contraceptive transdermal patch compared to users of oral contraceptives
containing norgestimate and 35 μg of
EE. Contraception 2007; 76: 4-7.
4. Jick S, Hagberg K, Hernandez
R, Kaye J. Postmarketing study of ORTHO EVRA®and levonorgestrel
oral contraceptives containing hormonal contraceptives with 30 mcg of ethinyl
estradiol in relation to nonfatal venous thromboembolism. Contraception 2010;
81: 16-21.
5. Jick S, Hagberg K, Kaye J.
ORTHO EVRA®and venous thromboembolism: an update. Letter to the
Editor. Contraception 2010; 81: 452-453.
6. Dore D, Norman H, Loughlin
J, Seeger D. Extended case-control study results on thromboembolic outcomes
among transdermal contraceptive users. Contraception 2010; 81: 408-413.
7. Cole JA, Norman H, Doherty M, Walker AM. Venous
thromboembolism, myocardial infarction, and stroke among transdermal
contraceptive system users [published erratum appears in Obstet Gynecol 2008;
111:1449].
8. Dore D, Norman H, Seeger, J. Eligibility criteria in
venous thromboembolism, myocardial infarction, and stroke among transdermal
contraceptive system users. Letter to the Editor. Obstetrics & Gynecology
2009; 114(1):175.
9. Combined hormonal contraceptives (CHCs) and the risk
of cardiovascular endpoints. Sidney,S. (primary author)
http://www.fda.gov/downloads/Drugs/DrugSafety/UCM277384.pdf, accessed Oct 27,
2011.
Patient Counseling Information
See FDA-approved patient labeling (PATIENT INFORMATION and Instructions for Use)
General
Counsel patients about the following information:
- Cigarette smoking increases the risk of serious
cardiovascular events from combined hormonal contraceptive use, and that women
who are over 35 years old and smoke should not use combined hormonal
contraceptives.
- ORTHO EVRA does not protect against HIV infection (AIDS)
and other sexually transmitted infections.
- The WARNINGS AND PRECAUTIONS associated with combined
hormonal contraceptives.
- ORTHO EVRA is not to be used during pregnancy; if
pregnancy occurs during use of ORTHO EVRA, instruct the patient to stop further
use.
- Apply a single patch the same day every week (Weeks 1
through 3). Instruct patients what to do in the event a patch is missed. See
“WHAT IF I FORGET TO CHANGE MY PATCH?” section in FDA-Approved Patient
Labeling.
- Use a back-up or alternative method of contraception when
enzyme inducers are used with ORTHO EVRA.
- Combined hormonal contraceptives may reduce breast milk
production; this is less likely to occur if breastfeeding is well established.
- Women who start combined hormonal contraceptives
postpartum, and who have not yet had a period, should use an additional method
of contraception until they have used a patch for 7 consecutive days.
- Amenorrhea may occur. Consider pregnancy in the event of
amenorrhea. Rule out pregnancy in the event of amenorrhea in two or more
consecutive cycles, amenorrhea in one cycle if the woman has not adhered to the
dosing schedule, or if associated with symptoms of pregnancy, such as morning sickness
or unusual breast tenderness.
- If the ORTHO EVRA patch becomes partially or completely
detached and remains detached, insufficient drug delivery occurs.
- A patch should not be re-applied if it is no longer
sticky, becomes stuck to itself or another surface, has other material stuck to
it, or has become loose or fallen off before. If a patch cannot be re-applied,
a new patch should be applied immediately. Supplemental adhesives or wraps
should not be used.
- A woman may not be protected from pregnancy if a patch is
partially or completely detached for ≥ 24 hours (or if the woman is not
sure how long the patch has been detached). She should start a new cycle
immediately by applying a new patch. Back-up contraception, such as a condom
and spermicide or diaphragm and spermicide, must be used for the first week of
the new cycle.
Nonclinical Toxicology
Carcinogenesis, Mutagenesis,
and Impairment of Fertility
See WARNINGS AND
PRECAUTIONS and Use
in Specific Populations.
Norelgestromin was tested in in
vitro mutagenicity assays (bacterial plate incorporation mutation assay,
CHO/HGPRT mutation assay, chromosomal aberration assay using cultured human peripheral
lymphocytes) and in one in vivo test (rat micronucleus assay) and found to have
no genotoxic potential.
Use In Specific Populations
Pregnancy
There is little or no increased risk of birth defects in
women who inadvertently use hormonal contraceptives during early pregnancy.
Epidemiologic studies and meta-analyses have not found an increased risk of
genital or non-genital birth defects (including cardiac anomalies and limb
reduction defects) following exposure to low dose hormonal contraceptives prior
to conception or during early pregnancy.
The administration of hormonal contraceptives to induce
withdrawal bleeding should not be used as a test for pregnancy. Hormonal
contraceptives should not be used during pregnancy to treat threatened or
habitual abortion.
Nursing Mothers
The effects of ORTHO EVRA in nursing mothers have not
been evaluated and are unknown. When possible, advise the nursing mother to use
other forms of contraception until she has completely weaned her child.
Estrogen-containing CHCs can reduce milk production in breastfeeding mothers.
This is less likely to occur once breastfeeding is well-established; however,
it can occur at any time in some women. Small amounts of contraceptive steroids
and/or metabolites are present in breast milk.
Pediatric Use
Safety and efficacy of ORTHO EVRA have been established
in women of reproductive age. Efficacy is expected to be the same for
post-pubertal adolescents under the age of 18 and for users 18 years and older.
Use of this product before menarche is not indicated.
Geriatric Use
ORTHO EVRA has not been studied in postmenopausal women
and is not indicated in this population.
Hepatic Impairment
No studies with ORTHO EVRA have been conducted in women
with hepatic impairment. However, steroid hormones may be poorly metabolized in
patients with impaired liver function. Acute or chronic disturbances of liver
function may necessitate the discontinuation of combined hormonal contraceptive
use until markers of liver function return to normal and combined hormonal
contraceptive causation has been excluded. [See CONTRAINDICATIONS and WARNINGS
AND PRECAUTIONS]
Renal Impairment
No studies with ORTHO EVRA have been conducted in women
with renal impairment.
Women with Weight > 198 lbs (90 kg)
ORTHO EVRA may be less effective in preventing pregnancy
in women who weigh 198 lbs (90 kg) or more.