Hypertension
[See WARNINGS section] In a controlled 4-week
outpatient clinical study of adolescents with ADHD, isolated systolic blood
pressure elevations ≥15 mmHg were observed in 7/64 (11%) placebo-treated
patients and 7/100 (7%) patients receiving Dextroamphetamine Saccharate,
Amphetamine Asparate Monohydrate, Dextroamphetamine Sulfate and, Amphetamine
Sulfate Extended-Release Capsules 10 or 20 mg. Isolated elevations in diastolic
blood pressure ≥ 8 mmHg were observed in 16/64 (25%) placebo-treated patients
and 22/100 (22%) Dextroamphetamine Saccharate, Amphetamine Asparate Monohydrate,
Dextroamphetamine Sulfate and, Amphetamine Sulfate Extended-Release Capsules
-treated patients. Similar results were observed at higher doses.
In a single-dose pharmacokinetic study in 23 adolescents, isolated increases
in systolic blood pressure (above the upper 95% CI for age, gender, and stature)
were observed in 2/17 (12%) and 8/23 (35%), subjects administered 10 mg and 20
mg Dextroamphetamine Saccharate, Amphetamine Asparate Monohydrate,
Dextroamphetamine Sulfate and, Amphetamine Sulfate Extended-Release Capsules,
respectively. Higher single doses were associated with a greater increase in
systolic blood pressure. All increases were transient, appeared maximal at 2 to
4 hours post dose and not associated with symptoms.
The premarketing development program for Dextroamphetamine Saccharate,
Amphetamine Asparate Monohydrate, Dextroamphetamine Sulfate and, Amphetamine
Sulfate Extended-Release Capsules included exposures in a total of 1315
participants in clinical trials (635 pediatric patients, 350 adolescent
patients, 248 adult patients, and 82 healthy adult subjects). Of these, 635
patients (ages 6 to 12) were evaluated in two controlled clinical studies, one
open-label clinical study, and two single-dose clinical pharmacology studies (N=
40). Safety data on all patients are included in the discussion that follows.
Adverse reactions were assessed by collecting adverse events, results of
physical examinations, vital signs, weights, laboratory analyses, and ECGs.
Adverse events during exposure were obtained primarily by general inquiry and
recorded by clinical investigators using terminology of their own choosing.
Consequently, it is not possible to provide a meaningful estimate of the
proportion of individuals experiencing adverse events without first grouping
similar types of events into a smaller number of standardized event categories.
In the tables and listings that follow, COSTART terminology has been used to
classify reported adverse events.
The stated frequencies of adverse events represent the proportion of
individuals who experienced, at least once, a treatment-emergent adverse event
of the type listed.
Adverse events associated with discontinuation of
treatment
In two placebo-controlled studies of up to 5 weeks duration among
children with ADHD, 2.4% (10/425) of Dextroamphetamine Saccharate, Amphetamine
Asparate Monohydrate, Dextroamphetamine Sulfate and, Amphetamine Sulfate
Extended-Release Capsules treated patients discontinued due to adverse events
(including 3 patients with loss of appetite, one of whom also reported insomnia)
compared to 2.7% (7/259) receiving placebo. The most frequent adverse events
associated with discontinuation of Dextroamphetamine Saccharate, Amphetamine
Asparate Monohydrate, Dextroamphetamine Sulfate and, Amphetamine Sulfate
Extended-Release Capsules in controlled and uncontrolled, multiple-dose clinical
trials of pediatric patients (N=595) are presented below. Over half of these
patients were exposed to Dextroamphetamine Saccharate, Amphetamine Asparate
Monohydrate, Dextroamphetamine Sulfate and, Amphetamine Sulfate Extended-Release
Capsules for 12 months or more.
| Adverse event | % of pediatric patients discontinuing (n=595) |
|---|
| Anorexia (loss of appetite) | 2.9 |
| Insomnia | 1.5 |
| Weight loss | 1.2 |
| Emotional lability | 1.0 |
| Depression | 0.7 |
In a separate placebo-controlled 4-week study in adolescents with ADHD, eight
patients (3.4%) discontinued treatment due to adverse events among
Dextroamphetamine Saccharate, Amphetamine Asparate Monohydrate,
Dextroamphetamine Sulfate and, Amphetamine Sulfate Extended-Release Capsules
-treated patients (N=233). Three patients discontinued due to insomnia and one
patient each for depression, motor tics, headaches, light-headedness, and
anxiety.
In one placebo-controlled 4-week study among adults with ADHD, patients who
discontinued treatment due to adverse events among Dextroamphetamine Saccharate,
Amphetamine Asparate Monohydrate, Dextroamphetamine Sulfate and, Amphetamine
Sulfate Extended-Release Capsules -treated patients (N=191) were 3.1% (n=6) for
nervousness including anxiety and irritability, 2.6% (n=5) for insomnia, 1%
(n=2) each for headache, palpitation, and somnolence; and, 0.5% (n=1) each for
ALT increase, agitation, chest pain, cocaine craving, elevated blood pressure,
and weight loss.
Adverse events occurring in a controlled trial
Adverse events reported in a 3-week clinical trial of pediatric
patients and a 4-week clinical trial in adolescents and adults, respectively,
treated with Dextroamphetamine Saccharate, Amphetamine Asparate Monohydrate,
Dextroamphetamine Sulfate and, Amphetamine Sulfate Extended-Release Capsules or
placebo are presented in the tables below.
The prescriber should be aware that these figures cannot be used to predict
the incidence of adverse events in the course of usual medical practice where
patient characteristics and other factors differ from those which prevailed in
the clinical trials. Similarly, the cited frequencies cannot be compared with
figures obtained from other clinical investigations involving different
treatments, uses, and investigators. The cited figures, however, do provide the
prescribing physician with some basis for estimating the relative contribution
of drug and non-drug factors to the adverse event incidence rate in the
population studied.
Table 1 Adverse Events Reported by More Than 1% of Pediatric Patients
Receiving Dextroamphetamine Saccharate, Amphetamine Asparate Monohydrate,
Dextroamphetamine Sulfate and, Amphetamine Sulfate Extended-Release (MAS-ER)
Capsules with Higher Incidence Than on Placebo in a 584 Patient Clinical
Study| Body System | Preferred Term | MAS-ER (n=374) | Placebo (n=210) |
|---|
| General | Abdominal Pain (stomachache) | 14% | 10% |
| Accidental Injury | 3% | 2% |
| Asthenia (fatigue) | 2% | 0% |
| Fever | 5% | 2% |
| Infection | 4% | 2% |
| Viral Infection | 2% | 0% |
| Digestive System | Loss of
Appetite Diarrhea Dyspepsia Nausea Vomiting | 22% 2% 2% 5% 7% | 2% 1% 1% 3% 4% |
| Nervous System | Dizziness Emotional
Lability Insomnia Nervousness | 2% 9% 17% 6% | 0% 2% 2% 2% |
| Metabolic/Nutritional | Weight Loss | 4% | 0% |
Table 2 Adverse Events Reported by More Than 5% or more of Adolescents Weight less than or equal to 75 kg/165 lbs Receiving Dextroamphetamine Saccharate, Amphetamine Asparate Monohydrate,
Dextroamphetamine Sulfate and, Amphetamine Sulfate Extended-Release (MAS-ER)
Capsules with Higher Incidence Than Placebo Clinical Forced Weekly-Dose Titration Study*| Body System | Preferred Term | MAS-ER (n=233) | Placebo (n=54) |
|---|
| General | Abdominal Pain (stomachache) | 11% | 2% |
|
|
|
|
| Digestive System | Loss of Appetite †
| 36%
| 2%
|
| Nervous System | Insomnia † Nervousness | 12% 6% | 4% 6%‡
|
| Metabolic/Nutritional | Weight Loss † | 9% | 0% |
Note: The following events did not meet the criterion for inclusion in Table 2
but were reported by 2% to 4% of adolescent patients receiving Dextroamphetamine
Saccharate, Amphetamine Asparate Monohydrate, Dextroamphetamine Sulfate and,
Amphetamine Sulfate Extended-Release Capsules with a higher incidence than
patients receiving placebo in this study: accidental injury, asthenia (fatigue),
dry mouth, dyspepsia, emotional lability, nausea, somnolence, and vomiting.
* Included doses up to 40 mg
† Dose-related adverse events
‡ Appears the same due to rounding
Table 3 Adverse Events Reported by 5% or More of Adults Receiving Dextroamphetamine Saccharate, Amphetamine Asparate Monohydrate,
Dextroamphetamine Sulfate and, Amphetamine Sulfate Extended-Release (MAS-ER)
Capsules with Higher Incidence Than on Placebo in a 255 Patient Clinical
Forced Weekly-Dose Titration Study*| Body System | Preferred Term | MAS-ER (n=191) | Placebo (n=64) |
|---|
| General | Asthenia Headache
| 6% 26%
| 5% 13% |
|
| | |
| Digestive System | Loss of
Appetite Diarrhea Dry Mouth Nausea
| 33% 6% 35% 8%
| 3% 0% 5% 3%
|
| Nervous System | Agitation Anxiety Dizziness Insomnia
| 8% 8% 7% 27%
| 5% 5% 0% 13%
|
| Cardiovascular System | Tachycardia | 6% | 3% |
Metabolic/Nutritional
| Weight Loss
| 11%
| 0%
|
Urogenital System
| Urinary Tract Infection
| 5%
| 0%
|
Note: The following events did not meet the criterion for inclusion in Table 3
but were reported by 2% to 4% of adult patients receiving Dextroamphetamine
Saccharate,
Amphetamine Asparate Monohydrate, Dextroamphetamine Sulfate and,
Amphetamine Sulfate Extended-Release Capsules with a higher incidence than
patients receiving
placebo in this study: infection, photosensitivity reaction,
constipation, tooth disorder, emotional lability, libido decreased, somnolence,
speech disorder, palpitation,
twitching, dyspnea, sweating, dysmenorrhea, and
impotence.
* Included doses up to 60 mg.
The following adverse reactions have been associated with the use of
amphetamine, Dextroamphetamine Saccharate, Amphetamine Asparate Monohydrate,
Dextroamphetamine Sulfate and, Amphetamine Sulfate Extended-Release (MAS-ER)
Capsules, or ADDERALL®:
Cardiovascular: Palpitations, tachycardia, elevation of blood pressure,
sudden death, myocardial infarction. There have been isolated reports of
cardiomyopathy associated with chronic amphetamine use.
Central Nervous System: Psychotic episodes at recommended doses,
overstimulation, restlessness, dizziness, insomnia, euphoria, dyskinesia,
dysphoria, depression, tremor, headache, exacerbation of motor and phonic tics
and Tourette's syndrome, seizures, stroke.
Gastrointestinal: Dryness of the mouth, unpleasant taste, diarrhea,
constipation, other gastrointestinal disturbances. Anorexia and weight loss may
occur as undesirable effects.
Allergic: Urticaria, rash, hypersensitivity reactions including angioedema
and anaphylaxis. Serious skin rashes, including Stevens Johnson Syndrome and
toxic epidermal necrolysis have been reported.
Endocrine: Impotence, changes in libido.