Exdensur Drug Information
Generic name: DEPEMOKIMAB
Uses of Exdensur
EXDENSUR is indicated for the add‑on maintenance treatment of severe asthma characterized by an eosinophilic phenotype in adult and pediatric patients aged 12 years and older. Limitations of Use EXDENSUR is not indicated for the relief of acute bronchospasm or status asthmaticus.
Dosage & Administration of Exdensur
Recommended Dosage
The recommended dosage is 100 mg once every 6 months administered by subcutaneous injection into the upper arm, thigh, or abdomen avoiding 2 inches (5 cm) around the navel. Missed Dose(s) If a dose is missed, administer the missed dose as soon as possible and resume the once every 6‑month injection schedule from the date of when the missed dose was given.
Preparation and Administration Instructions for EXDENSUR • EXDENSUR is for subcutaneous use only. • EXDENSUR should be administered by a healthcare provider. • Do not use EXDENSUR prefilled syringe if the security seal on the carton has been broken or if it has been dropped or damaged. Preparation Instructions 1. Remove the prefilled syringe from the refrigerator.
Holding the middle of the prefilled syringe, take it out from the tray and allow it to sit at room temperature for 30 minutes prior to injection. Do not warm EXDENSUR injection in any other way. Do not remove the needle cap until you are ready to inject.
Do not use the syringe if it has been left out of the carton for more than 8 hours. 2. Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration whenever solution and container permit. EXDENSUR should be colorless to yellow to brown, clear to opalescent in color.
Do not use EXDENSUR if the product exhibits discoloration, cloudiness, or particulate matter. It is normal to see an air bubble. Do not expel the air bubble prior to administration.
Do not shake the device. 3. Choose the injection site; administer EXDENSUR into upper arm, thigh, or abdomen, avoiding the 2 inches (5 cm) around the navel. Do not give injections into areas where the skin is tender, bruised, red, or hard.
Administration Instructions Figure 1. EXDENSUR Prefilled Syringe Components 1. Pull Off the Gray Needle Cap Remove the gray needle cap from the syringe by pulling it straight off, away from the needle.
Inject within 5 minutes after removing the gray needle cap. 2. Position the Syringe at the Injection Site Use your free hand to gently pinch the skin around the cleaned injection site. Hold the middle of the syringe and insert the entire needle into the pinched skin at a 45 degree angle, as shown. 3.
Start the Injection and Fully Press the White Plunger Slowly push down on the white plunger with your thumb to inject the full dose. Make sure the white plunger is pushed all the way down until the stopper reaches the bottom of the syringe and all of the medication is injected. 4. Slowly Lift Thumb After Injection Completes Slowly lift your thumb up.
After removing the syringe from the injection site, release the pinched skin. 5. Throw Away Dispose of used syringe according to local health and safety laws. Figure 1 1.
Pull Off the Gray Needle Cap 2. Position the Syringe at the Injection Site 3. Start the Injection and Fully Press the White Plunger 4.
| Remove the gray needle cap from the syringe by pulling it straight off, away from the needle. Do not handle the syringe by the white plunger while removing the gray needle cap. Do not put the gray needle cap back onto the syringe. Inject within 5 minutes after removing the gray needle cap. |
| Use your free hand to gently pinch the skin around the cleaned injection site. Do not handle the syringe by the white plunger while inserting the needle into the pinched skin. Hold the middle of the syringe and insert the entire needle into the pinched skin at a 45 degree angle, as shown. |
| Slowly push down on the white plunger with your thumb to inject the full dose. Make sure the white plunger is pushed all the way down until the stopper reaches the bottom of the syringe and all of the medication is injected. | |
| 4. Slowly Lift Thumb After Injection Completes | |
| Slowly lift your thumb up. This will allow the white plunger to come up and the needle to automatically pull up (retract) into the needle guard. After removing the syringe from the injection site, release the pinched skin. | |
Side Effects of Exdensur
Clinical Trials Experience
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared with rates in the clinical trials of another drug and may not reflect the rates observed in practice. The safety of EXDENSUR was based on a pooled safety population from 2 replicate, randomized, double‑blind, parallel‑group, placebo‑controlled, multicenter clinical trials (SWIFT‑1 and SWIFT‑2) of 52 weeks duration. A total of 475 patients received 2 doses of EXDENSUR 100 mg in these trials.
Adverse reactions with EXDENSUR with incidence of ≥4% are shown in Table 1. Table 1. Adverse Reactions With EXDENSUR With an Incidence ≥4% and More Common Than Placebo in Patients With Asthma s Injection Site Reactions: In the pooled safety population (SWIFT‑1 and SWIFT‑2), in which EXDENSUR was administered by a healthcare provider, injection site reactions (e.g., erythema, swelling, and itching) occurred in patients receiving EXDENSUR and placebo, respectively.
| Adverse Reaction | EXDENSUR (N = 501) n (%) | Placebo (N = 261) n (%) |
|---|---|---|
| Upper respiratory tract infection | 46 (9) | 20 (8) |
| Allergic rhinitis | 29 (6) | 7 (3) |
| Influenza | 24 (5) | 11 (4) |
| Arthralgia | 19 (4) | 8 (3) |
| Pharyngitis | 18 (4) | 3 (1) |
Warnings & Cautions for Exdensur
Hypersensitivity Reactions
Hypersensitivity reactions, including anaphylaxis, can occur following administration of EXDENSUR. If a hypersensitivity reaction occurs, discontinue EXDENSUR and initiate appropriate therapy.
Acute Asthma Symptoms or Deteriorating Disease EXDENSUR should not be used to treat acute asthma symptoms or acute exacerbations. Do not use EXDENSUR to treat acute bronchospasm or status asthmaticus. Patients should seek medical advice if their asthma remains uncontrolled or worsens after initiation of treatment with EXDENSUR.
Risk Associated With Abrupt Reduction of Corticosteroid Dosage Reduction in corticosteroid dose may be associated with systemic withdrawal symptoms and/or unmask conditions previously suppressed by systemic corticosteroid therapy. Do not abruptly discontinue systemic or inhaled corticosteroids upon initiation of EXDENSUR therapy. Reductions in corticosteroid dose, if appropriate, should be gradual and performed under the supervision of a healthcare provider.
Parasitic (Helminth) Infection Eosinophils may be involved in the immunological response to some helminth infections. Patients with pre‑existing helminth infections were excluded from participation in the clinical trials. It is unknown if EXDENSUR will influence a patient’s response against parasitic infections.
Patients with pre‑existing helminth infections should be treated for their infection prior to initiation of EXDENSUR therapy. If patients become infected while receiving treatment with EXDENSUR and do not respond to anti‑helminth treatment, discontinue treatment with EXDENSUR until the infection resolves.
Pregnancy Safety for Exdensur
Pregnancy Risk Summary Available data from clinical trials with EXDENSUR use in pregnant women are insufficient to identify a drug‑associated risk of major birth defects, miscarriage, or other adverse maternal or fetal outcomes. There are risks to the mother and fetus associated with asthma in pregnancy (see Clinical Considerations). Transport of endogenous immunoglobulin G (IgG) antibodies and monoclonal antibodies, such as depemokimab‑ulaa, across the placenta increases as pregnancy progresses and peaks during the third trimester.
The impact of the YTE modification on placental transfer is uncertain; however, the presence of the YTE modification may lead to prolonged and increased exposure of the infant exposed in utero, and the potential of clinical impact is unknown and should be considered. No treatment‑related effects on embryofetal or postnatal development have been shown in animal studies targeting interleukin‑5 (IL‑5) signaling pathways (see Data). The background risk of major birth defects and miscarriage for the indicated population(s) is unknown.
All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is respectively. Pregnant women exposed to EXDENSUR, or their healthcare providers, should report EXDENSUR exposure by calling 1‑888‑825‑5249.
Clinical Considerations Disease ‑ Associated Maternal and/or Embryofetal Risk: In women with poorly or moderately controlled asthma, evidence demonstrates that there is an increased risk of preeclampsia in the mother, and prematurity, low birth weight, and small for gestational age in the neonate. The level of asthma control should be closely monitored in pregnant women and treatment adjusted as necessary to maintain optimal control. Data Animal Data: Reproductive toxicology studies have not been conducted with depemokimab‑ulaa.
In animal studies targeting the IL‑5 signaling pathway with a related biologic product without the YTE modification, there were no developmental effects observed. Embryofetal development of IL‑5 deficient mice has been reported to be generally unaffected relative to wild‑type mice.
Pediatric Use of Exdensur
Pediatric Use Asthma The safety and effectiveness of EXDENSUR for add‑on maintenance treatment of severe asthma characterized by an eosinophilic phenotype have been established in pediatric patients aged 12 years and older. Use of EXDENSUR for this indication is supported by evidence from adequate and well‑controlled trials (SWIFT‑1 and SWIFT‑2) in adults and pediatric patients aged 12 years and older, and pharmacokinetic data in pediatric patients aged 12 years and older. Pharmacokinetic and pharmacodynamic data have demonstrated no clinically significant differences in systemic exposure of depemokimab‑ulaa and reduction in blood eosinophil counts in pediatric patients aged 12 years and older compared to that observed in adults following administration of the recommended dosage of EXDENSUR.
The safety of EXDENSUR in pediatric patients aged 12 years and older was generally similar to that of the adult population in SWIFT‑1 and SWIFT‑2. The safety and effectiveness of EXDENSUR have not been established in pediatric patients younger than 12 years of age.
Overdosage Information for Exdensur
If an overdosage occurs, the patient should be treated supportively with appropriate monitoring as necessary. Consider contacting the Poison Help line (1‑800‑222‑1222) or a medical toxicologist for additional overdose management recommendations.
Clinical Studies of Exdensur
The efficacy of EXDENSUR for the add‑on maintenance treatment of severe asthma characterized by an eosinophilic phenotype was evaluated in 2 replicate, randomized (2:1 to EXDENSUR or placebo), double‑blind, parallel‑group, placebo‑controlled, multicenter clinical trials (SWIFT‑1 and SWIFT‑2 ) of 52 weeks duration. The trials enrolled adult and pediatric patients aged 12 years and older with asthma characterized by an eosinophilic phenotype, defined as a blood eosinophil count ≥150 cells/mcL at screening or ≥300 cells/mcL documented in the year prior to study entry. Patients were required to have 2 or more asthma exacerbations requiring treatment with systemic corticosteroids (SCS) in the prior year while on background asthma therapy consisting of a medium‑ to high‑dose inhaled corticosteroids (ICS) plus at least one additional asthma controller with or without maintenance oral corticosteroids (OCS).
Patients were enrolled without requiring a minimum baseline Asthma Control Questionnaire‑5 (ACQ‑5) score. In these trials, EXDENSUR 100 mg was administered subcutaneously once every 6 months for a total of 2 doses in addition to background asthma therapy. The demographics and baseline characteristics of the efficacy population in SWIFT‑1 and SWIFT‑2 are provided in Table 2.
Table 2. Demographics and Baseline Characteristics of Adult and Pediatric Patients Aged 12 Years and Older With Severe Asthma in SWIFT-1 and SWIFT-2 Exacerbations The primary efficacy endpoint for SWIFT‑1 and SWIFT‑2 was the annualized rate of clinically significant exacerbations over the 52‑week treatment period. A clinically significant exacerbation was defined as worsening of asthma requiring use of SCS such as intravenous or oral steroids for at least 3 days or a single intramuscular corticosteroid dose and/or hospitalization and/or Emergency Department visit.
For patients on maintenance SCS, at least double the existing maintenance dose for at least 3 days was required. All patients experiencing an exacerbation were treated with SCS. In SWIFT‑1 and SWIFT‑2, the annualized rate of asthma exacerbations was significantly lower in patients receiving EXDENSUR compared to placebo ( Table 3 ).
Table 3. Annualized Rate of Clinically Significant Asthma Exacerbations Over 52 Weeks in SWIFT-1 and SWIFT-2 The percentage of patients with exacerbations requiring hospitalization and/or Emergency Department visit was numerically lower for patients treated with EXDENSUR (1% and 4%) compared with placebo (8% and 10%) in SWIFT‑1 and SWIFT‑2, respectively. In SWIFT‑1 and SWIFT‑2, the time to first clinically significant exacerbation was longer for EXDENSUR compared to placebo (Figures 2 and 3; shaded areas represent 95% confidence intervals).
Figure 2. Kaplan-Meier Curve for Time to First Clinically Significant Exacerbation (SWIFT ‑ 1) Figure 3. The treatment difference in SWIFT‑1 and SWIFT‑2 relative to placebo was respectively.
Patient-Reported Outcome In SWIFT‑1 and SWIFT‑2, the proportion of ACQ‑5 responders (clinically meaningful improvement defined as a decrease in score of 0.5 or more) at Week 52 was 54% for EXDENSUR in both studies compared to 55% and 53%, respectively, for placebo. Figure 2 Figure 3
| FEV 1 = forced expiratory volume in 1 second; ICS = inhaled corticosteroid; IgE = immunoglobulin E; LABA = long‑acting beta agonist; LAMA = long‑acting muscarinic antagonist; mcL = microliter; N = number of patients in the efficacy population; n = number of patients in the respective group; OCS = oral corticosteroid; SD = standard deviation; U = units. | ||
| a Medium ICS dose = 440 mcg fluticasone propionate (FP) daily or equivalent; High ICS dose >440 mcg FP daily or equivalent. | ||
| SWIFT ‑ 1 N = 382 | SWIFT ‑ 2 N = 380 | |
| Age (years), n (%) | ||
| 12‑17 | 8 (2) | 22 (6) |
| 18‑64 | 276 (72) | 262 (69) |
| ≥65 | 98 (26) | 96 (25) |
| Mean (SD) | 54 (14.2) | 53 (16.2) |
| Female, n (%) | 223 (58) | 241 (63) |
| Race, n (%) | ||
| White | 316 (83) | 272 (72) |
| Asian | 58 (15) | 75 (20) |
| Black or African American | 8 (2) | 28 (7) |
| Other | 0 | 5 (1) |
| Hispanic or Latino, n (%) | 23 (6) | 65 (17) |
| Never smoked, n (%) | 288 (75) | 294 (77) |
| Duration of asthma (years), mean (SD) | 22 (16.2) | 25 (18.5) |
| Pre‑bronchodilator % predicted FEV 1, mean (SD) | 62 (15.2) | 62 (15.9) |
| % reversibility, mean (SD) | 17 (15.3) | 18 (17.4) |
| Eosinophil count (cells/mcL), median (min; max) | 310 (20; 2,360) | 340 (10; 4,440) |
| Exacerbations in previous year, mean (SD) | 2.2 (0.7) | 2.7 (1.9) |
| High‑dose ICS use, n (%) a | 203 (53) | 226 (59) |
| ICS + LABA + LAMA use, n (%) | 95 (25) | 127 (33) |
| Maintenance OCS use, n (%) | 21 (5) | 19 (5) |
| Total IgE (U/mcL), median (min; max) | 185 (2; 12,142) | 180 (2; 16,199) |
| N = number of patients in the efficacy population. | ||||
| Note: Results obtained from a negative binomial model with an offset term for years in study and fixed effects for treatment group, asthma exacerbation history, baseline ICS dose, geographical region, and baseline pre‑bronchodilator % predicted FEV 1. | ||||
| SWIFT ‑ 1 | SWIFT ‑ 2 | |||
| EXDENSUR N = 250 | Placebo N = 132 | EXDENSUR N = 252 | Placebo N = 128 | |
| Annualized rate of clinically significant asthma exacerbations | 0.46 | 1.11 | 0.56 | 1.08 |
| Rate ratio (95% CI) | 0.42 (0.30, 0.59) | 0.52 (0.36, 0.73) | ||
| P ‑value | <0.001 | <0.001 | ||
Drug information sourced from the FDA. This content is for informational purposes only and does not constitute medical advice. Consult a healthcare professional before making any medication decisions.
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