WARNINGS
Included as part of the PRECAUTIONS section.
PRECAUTIONS
Worsening Of Benign Prostatic Hyperplasia (BPH) And Potential
Risk Of Prostate Cancer
- Men with BPH treated with androgens are at an increased
risk for worsening of signs and symptoms of BPH. Monitor patients with BPH for worsening
signs and symptoms.
- Patients treated with androgens may be at increased risk
for prostate cancer. Evaluate patients for prostate cancer prior to initiating
and during treatment with androgens [see CONTRAINDICATIONS].
Potential For Secondary Exposure To Testosterone
Cases of secondary exposure resulting in virilization of
children have been reported in postmarketing surveillance. Signs and symptoms
have included enlargement of the penis or clitoris, development of pubic hair,
increased erections and libido, aggressive behavior, and advanced bone age. In
most cases, these signs and symptoms regressed with removal of the exposure to
testosterone gel. In a few cases, however, enlarged genitalia did not fully
return to age-appropriate normal size, and bone age remained modestly greater
than chronological age.
The risk of transfer was increased in some of these cases
by not adhering to precautions for the appropriate use of the topical
testosterone product. Children and women should avoid contact with unwashed or
unclothed application sites in men using Vogelxo [see DOSAGE AND
ADMINISTRATION, Use In Specific Populations and CLINICAL
PHARMACOLOGY].
Inappropriate changes in genital size or development of
pubic hair or libido in children, or changes in body hair distribution,
significant increase in acne, or other signs of virilization in adult women
should be brought to the attention of a physician and the possibility of
secondary exposure to testosterone gel should also be brought to the attention
of a physician. Testosterone gel should be promptly discontinued until the
cause of virilization has been identified.
Polycythemia
Increases in hematocrit, reflective of increases in red
blood cell mass, may require lowering or discontinuation of testosterone. Check
hematocrit prior to initiating treatment. It would also be appropriate to
re-evaluate the hematocrit 3 to 6 months after starting treatment, and then
annually. If hematocrit becomes elevated, stop therapy until hematocrit
decreases to an acceptable concentration. An increase in red blood cell mass
may increase the risk of thromboembolic events.
Venous Thromboembolism
There have been postmarketing reports of venous
thromboembolic events, including deep vein thrombosis (DVT) and pulmonary
embolism (PE), in patients using testosterone products, such as Vogelxo.
Evaluate patients who report signs and symptoms of pain, edema, warmth and
erythema in the lower extremity for DVT and those who present with acute
shortness of breath for PE. If a venous thromboembolic event is suspected,
discontinue treatment with Vogelxo and initiate appropriate workup and
management [see ADVERSE REACTIONS].
Cardiovascular Risk
Long term clinical safety trials have not been conducted
to assess the cardiovascular outcomes of testosterone replacement therapy in
men. To date, epidemiologic studies and randomized controlled trials have been
inconclusive for determining the risk of major adverse cardiovascular events
(MACE), such as non-fatal myocardial infarction, non-fatal stroke, and
cardiovascular death, with the use of testosterone compared to non-use. Some
studies, but not all, have reported an increased risk of MACE in association
with use of testosterone replacement therapy in men. Patients should be
informed of this possible risk when deciding whether to use or to continue to
use Vogelxo.
Abuse Of Testosterone And Monitoring Of Serum
Testosterone Concentrations
Testosterone has been subject to abuse, typically at
doses higher than recommended for the approved indication and in combination
with other anabolic androgenic steroids. Anabolic androgenic steroid abuse can
lead to serious cardiovascular and psychiatric adverse reactions [see Drug
Abuse And Dependence].
If testosterone abuse is suspected, check serum
testosterone concentrations to ensure they are within therapeutic range.
However, testosterone levels may be in the normal or subnormal range in men
abusing synthetic testosterone derivatives. Counsel patients concerning the
serious adverse reactions associated with abuse of testosterone and anabolic
androgenic steroids. Conversely, consider the possibility of testosterone and
anabolic androgenic steroid abuse in suspected patients who present with
serious cardiovascular or psychiatric adverse events.
Use In Women
Due to lack of controlled evaluations in women and
potential virilizing effects, Vogelxo is not indicated for use in women.
Potential For Adverse Effects On Spermatogenesis
With large doses of exogenous androgens, including
Vogelxo, spermatogenesis may be suppressed through feedback inhibition of
pituitary follicle-stimulating hormone (FSH) which could possibly lead to
adverse effects on semen parameters including sperm count.
Hepatic Adverse Effects
Prolonged use of high doses of orally active
17-alpha-alkyl androgens (e.g., methyltestosterone) has been associated with
serious hepatic adverse effects (peliosis hepatis, hepatic neoplasms,
cholestatic hepatitis, and jaundice). Peliosis hepatis can be a
life-threatening or fatal complication. Long-term therapy with intramuscular
testosterone enanthate, which elevate blood levels for prolonged periods, has
produced multiple hepatic adenomas. Vogelxo is not known to produce these
adverse effects. Nonetheless, patients should be instructed to report any signs
or symptoms of hepatic dysfunction (e.g., jaundice). If these occur, promptly
discontinue Vogelxo while the cause is evaluated.
Edema
Androgens, including Vogelxo, may promote retention of
sodium and water. Edema, with or without congestive heart failure, may be a
serious complication in patients with preexisting cardiac, renal, or hepatic
disease. In addition to discontinuation of the drug, diuretic therapy may be
required.
Gynecomastia
Gynecomastia occasionally develops and occasionally
persists in patients being treated for hypogonadism [see ADVERSE REACTIONS].
Sleep Apnea
The treatment of hypogonadal men with testosterone may
potentiate sleep apnea in some patients, especially those with risk factors
such as obesity or chronic lung diseases.
Lipids
Changes in the serum lipid profile may occur. Monitor the
lipid profile periodically, particularly after starting testosterone therapy
and after any dose increases.
Hypercalcemia
Androgens, including Vogelxo, should be used with caution
in cancer patients at risk of hypercalcemia (and associated hypercalciuria).
Regular monitoring of serum calcium concentrations is recommended in these
patients.
Decreased Thyroxine-binding Globulin
Androgens, including Vogelxo, may decrease concentrations
of thyroxine-binding globulins, resulting in decreased total T4 serum
concentrations and increased resin uptake of T3 and T4. Free thyroid hormone
levels remain unchanged, however, and there is no clinical evidence of thyroid
dysfunction.
Flammability
Alcohol-based products, including Vogelxo, are flammable;
therefore, patients should be advised to avoid fire, flame or smoking until the
Vogelxo has dried.
Patient Counseling Information
Advise the patient to read the FDA-approved patient
labeling (Medication Guide).
Men with Known or Suspected Carcinoma of the Breast or
Prostate
Men with known or suspected prostate or breast cancer
should not use Vogelxo [see CONTRAINDICATIONS and WARNINGS AND
PRECAUTIONS].
Potential for Secondary Exposure to Testosterone and
Steps to Prevent Secondary Exposure
Secondary exposure to testosterone in children and women
can occur with the use of testosterone gel products in men. Cases of secondary
exposure to testosterone have been reported in children.
Physicians should advise patients of the reported signs
and symptoms of secondary exposure which may include the following:
- In children; unexpected sexual development including
inappropriate enlargement of the penis or clitoris, premature development of
pubic hair, increased erections, and aggressive behavior
- In women; changes in hair distribution, increase in acne,
or other signs of testosterone effects
- The possibility of secondary exposure to Vogelxo should
be brought to the attention of a healthcare provider
- Vogelxo should be promptly discontinued until the cause
of virilization is identified
Strict adherence to the following precautions is advised
to minimize the potential for secondary exposure to testosterone from Vogelxo
in men [see Medication Guide]
- Children and women should avoid contact with unwashed
or unclothed application site(s) of men using Vogelxo
- Patients using Vogelxo should apply the product as
directed and strictly adhere to the following:
- Wash hands with soap and water immediately after
application
- Cover the application site(s) with clothing after
the gel has dried
- Wash the application site(s) thoroughly with soap
and water prior to any situation where skin-to-skin contact of the application
site with another person is anticipated
- In the event that unwashed or unclothed skin to which
Vogelxo has been applied comes in contact with the skin of another person, the
general area of contact on the other person should be washed with soap and
water as soon as possible [see DOSAGE AND ADMINISTRATION, WARNINGS
AND PRECAUTIONS and CLINICAL PHARMACOLOGY].
Potential Adverse Reactions With Androgens
Patients should be informed that treatment with androgens
may lead to adverse reactions which include:
- Changes in urinary habits, such as increased urination at
night, trouble starting the urine stream, passing urine many times during the
day, having an urge to go the bathroom right away, having a urine accident, or
being unable to pass urine or weak urine flow
- Breathing disturbances, including those associated with
sleep or excessive daytime sleepiness.
- Too frequent or persistent erections of the penis
- Nausea, vomiting, changes in skin color, or ankle
swelling
Patients Should Be Advised Of The Following
Instructions For Use
- Read the Medication Guide before starting Vogelxo
therapy and reread it each time the prescription is renewed.
- Vogelxo should be applied and used appropriately to
maximize the benefits and to minimize the risk of secondary exposure in
children and women.
- Keep Vogelxo out of the reach of children. The package
is not child resistant.
- Vogelxo is an alcohol-based product and is flammable;
therefore avoid fire, flame or smoking until the gel has dried.
- It is important to adhere to all recommended monitoring.
- Report any changes in their state of health, such as
changes in urinary habits, breathing, sleep, and mood.
- Vogelxo is prescribed to meet the patient's specific
needs; therefore, the patient should never share Vogelxo with anyone.
- Vogelxo should be applied topically once daily at
approximately the same time each day to clean dry skin of the shoulders and/or
upper arms.
- Vogelxo should not be applied to the scrotum, penis, or
abdomen.
- Wait 2 hours before washing or swimming following
application of Vogelxo. This will ensure that the greatest amount of Vogelxo is
absorbed.
Nonclinical Toxicology
Carcinogenesis, Mutagenesis, Impairment Of Fertility
Carcinogenicity
Testosterone has been tested by subcutaneous injection
and implantation in mice and rats. In mice, the implant induced
cervical-uterine tumors, which metastasized in some cases. There is suggestive
evidence that injection of testosterone into some strains of female mice
increases their susceptibility to hepatoma. Testosterone is also known to
increase the number of tumors and decrease the degree of differentiation of
chemically induced carcinomas of the liver in rats.
Mutagenesis
Testosterone was negative in the in vitro Ames and in the
in vivo mouse micronucleus assays.
Impairment Of Fertility
The administration of exogenous testosterone has been
reported to suppress spermatogenesis in the rat, dog and non-human primates,
which was reversible on cessation of the treatment.
Use In Specific Populations
Pregnancy
Pregnancy Category X
Vogelxo is contraindicated in pregnant women or in women
who may become pregnant. Testosterone is teratogenic and may cause fetal harm.
Exposure of a fetus to androgens, such as testosterone, may result in varying
degrees of virilization. If this drug is used during pregnancy or if the
patient becomes pregnant while taking this drug, the patient should be made
aware of the potential hazard to the fetus.
Nursing Mothers
Although it is not known how much testosterone transfers
into human milk, Vogelxo is contraindicated in nursing women because of the
potential for serious adverse reactions in nursing infants.
Pediatric Use
The safety and efficacy of Vogelxo in pediatric patients
less than 18 years old have not been established. Improper use may result in
acceleration of bone age and premature closure of epiphyses.
Geriatric Use
There is insufficient long-term safety data in geriatric
patients to assess the potentially increased risks of cardiovascular disease
and prostate cancer [see WARNINGS AND PRECAUTIONS].
Renal Impairment
No studies were conducted in patients with renal
impairment.
Hepatic Impairment
No studies were conducted in patients with hepatic
impairment.