Tymlos Drug Information

Treatment of Postmenopausal Women with Osteoporosis at High Risk for Fracture TYMLOS is indicated for the treatment of postmenopausal women with osteoporosis at high risk for fracture (defined as a history of osteoporotic fracture or multiple risk factors for fracture), or patients who have failed or are intolerant to other available osteoporosis therapy. In postmenopausal women with osteoporosis, TYMLOS reduces the risk of vertebral fractures and nonvertebral fractures.

Recommended Dosage

The recommended dosage of TYMLOS is 80 mcg administered subcutaneously once daily. Patients should receive supplemental calcium and vitamin D if dietary intake is inadequate.

Administration Instructions Administer

TYMLOS as a subcutaneous injection into the periumbilical region of the abdomen. Rotate the site of the injection every day and administer at approximately the same time every day. Do not administer intravenously or intramuscularly.

Administer the first several doses where the patient can sit or lie down if necessary, in case symptoms of orthostatic hypotension occur. Visually inspect TYMLOS for particulate matter and discoloration prior to administration. TYMLOS is a clear and colorless solution.

Do not use if solid particles appear or if the solution is cloudy or colored. Provide appropriate training and instruction to patients and caregivers on the proper use of the TYMLOS pen.

Treatment Duration

The safety and efficacy of TYMLOS have not been evaluated beyond 2 years of treatment. Use of the drug for more than 2 years during a patient's lifetime is not recommended.

Clinical Trials Experience

Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical studies of another drug and may not reflect the rates observed in practice. Adverse Reactions from Clinical Trial in Postmenopausal Women with Osteoporosis The safety of TYMLOS was evaluated in a randomized, multicenter, double-blind, placebo-controlled clinical trial in postmenopausal women with osteoporosis aged 49 to 86 years (mean age 69 years) who were randomized to receive 80 mcg of TYMLOS (N = 824) or placebo (N = 821), given subcutaneously once daily for 18 months. In this study, the incidence of all-cause mortality was 0.4% in the TYMLOS group and 0.6% in the placebo group.

The incidence of serious adverse events was 10% in the TYMLOS group and 11% in the placebo group. The percentage of patients who discontinued study drug due to adverse events was 10% in the TYMLOS group and 6% in the placebo group. Table 1 shows the most common adverse reactions in the trial.

These adverse reactions were generally not present at baseline, occurred more commonly with TYMLOS than with placebo, and occurred in at least 2% of the patients treated with TYMLOS. At later time points the incidence was generally similar between the treatment groups. Adverse reactions of orthostatic hypotension were reported in 1% of patients receiving TYMLOS and 0.5% of patients receiving placebo.

Dizziness was reported by more TYMLOS-treated patients (10%) compared to placebo (6%). Tachycardia In women with postmenopausal osteoporosis, adverse reactions of tachycardia, including sinus tachycardia, were reported in 2% of patients receiving TYMLOS and 1% of patients in the placebo group. In 5 of the 13 patients receiving TYMLOS who experienced tachycardia, symptoms occurred within 1 hour of administration.

TYMLOS has been associated with a dose-dependent increase in heart rate which developed within 15 minutes after injection and resolved in about 6 hours. Injection Site Reactions During the first month of the trial, injection site reactions were assessed daily one-hour after injection. Severe redness, severe edema, and severe pain were reported among 2.9%, 0.4%, and 0.4% of the TYMLOS-treated patients.

Laboratory Abnormalities Hypercalcemia In the clinical trial of women with postmenopausal osteoporosis, TYMLOS caused increases in serum calcium concentrations. Pre-dose serum calcium was similar to baseline in both groups. There were 2 (0.2%) TYMLOS-treated patients and no placebo-treated patients who discontinued from the study due to hypercalcemia.

The incidence of hypercalcemia with TYMLOS was higher in patients with mild or moderate renal impairment (4%) compared to patients with normal renal function (1%). Increases in Serum Uric Acid TYMLOS increased serum uric acid concentrations. In the postmenopausal osteoporosis trial, among patients with normal baseline uric acid concentrations, 25% of patients in the TYMLOS group and 6% of patients in the placebo group had at least one post-baseline concentration above the normal range.

The hyperuricemia observed in TYMLOS-treated patients was not associated with an increase in adverse reactions of gout or arthralgia over that observed with placebo. Hypercalciuria and Urolithiasis In the clinical trial of women with postmenopausal osteoporosis, the overall incidence of urine calcium:creatinine ratio >400 mg/g was higher with TYMLOS than with placebo (20% vs 15%, respectively). Urolithiases were reported in 2.1% of TYMLOS-treated patients and 1.7% of placebo-treated patients.

Adverse Reactions from the Extension Study in Postmenopausal Women with Osteoporosis Following 18 months of treatment with TYMLOS or placebo, 1139 women transitioned to treatment with alendronate 70 mg administered orally once weekly. The incidence of adverse events occurring during alendronate treatment was similar in patients with prior placebo or TYMLOS therapy. Adverse Reactions from Clinical Trial in Men with Osteoporosis The safety of TYMLOS was evaluated in a randomized, multicenter, double-blind, placebo-controlled clinical trial in men with osteoporosis aged 42 to 85 years (mean age 68 years) who were randomized to receive 80 mcg of TYMLOS (N = 149) or placebo (N = 79), given subcutaneously once daily for 12 months.

In this study, no patient from either treatment group had an adverse reaction with a fatal outcome during the trial. Serious adverse reactions were reported by 5.4% of subjects treated with TYMLOS and 5.1% of subjects in the placebo group. Adverse reactions leading to study drug discontinuation were reported for 6.7% of patients treated with TYMLOS and 5.1% of patients receiving placebo.

The most common adverse reaction leading to study drug discontinuation in the TYMLOS group was dizziness (2%). Dizziness was reported by more TYMLOS-treated patients (9%) compared to placebo (1%). Hypercalciuria and Urolithiasis In the clinical trial of men with osteoporosis, the overall incidence of urine calcium: creatinine ratio >400 mg/g was not greater with TYMLOS than with placebo.

Postmarketing Experience

The following adverse reactions have been identified during the post-approval use of TYMLOS. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Abdominal distension, abdominal pain Constipation, diarrhea, vomiting Asthenia, lethargy, malaise Insomnia Hypersensitivity and anaphylactic reactions, dyspnea (in the context of allergic reactions) Pruritus, rash Generalized pain and pain in bone, joint, back, and extremity Blood pressure increased Muscle spasms of the leg and back Injection site reactions including bruising, hemorrhage, pruritus, and rash

No specific drug-drug interaction studies have been performed.

Pregnancy Risk Summary TYMLOS is not indicated for use in females of reproductive potential. There are no human data with TYMLOS use in pregnant women to inform any drug associated risks. Animal reproduction studies with abaloparatide have not been conducted.

Pediatric Use Safety and effectiveness of TYMLOS have not been established in pediatric patients. TYMLOS is not recommended for use in pediatric patients with open epiphyses or hereditary disorders predisposing to osteosarcoma because of an increased baseline risk of osteosarcoma.

TYMLOS is contraindicated in patients with a history of severe hypersensitivity to abaloparatide or any of the inactive ingredients of TYMLOS. Reactions have included anaphylaxis, angioedema, dyspnea, and urticaria.

In a clinical study, accidental overdose was reported in a patient who received 400 mcg in one day (5 times the recommended clinical dose); dosing was temporarily interrupted. The patient experienced asthenia, headache, nausea, and vertigo. Serum calcium was not assessed on the day of the overdose, but on the following day the patient's serum calcium was within the normal range.

The effects of overdose may include hypercalcemia, nausea, vomiting, dizziness, tachycardia, orthostatic hypotension, and headache. Overdos age Management There is no specific antidote for TYMLOS. Treatment of suspected overdose should include discontinuation of TYMLOS, monitoring of serum calcium and phosphorus, and implementation of appropriate supportive measures, such as hydration.

Based on the molecular weight, plasma protein binding and volume of distribution, abaloparatide is not expected to be dialyzable.