LISBON, Portugal, Oct. 2, 2024 /PRNewswire/ -- Johnson & Johnson (NYSE: JNJ) today announced the results of a landmark real-world, head-to-head study showing that ERLEADA® (apalutamide) provided a statistically significant overall survival benefit at 24 months compared to enzalutamide in patients with metastatic castration-sensitive prostate cancer (mCSPC). Presented at the 6th European Congress of Oncology Pharmacy (ECOP) in Lisbon, Portugal, on October 2 (Abstract #P31), this study of nearly 4,000 patients represents the largest real-world, head-to-head analysis of these two androgen receptor pathway inhibitors (ARPIs) in mCSPC.
The study applied U.S. Food and Drug Administration (FDA) real-world evidence guidance and employed robust methodology, data sources and a large, diverse cohort to ensure validity of its findings. The retrospective study identified mCSPC patients who initiated ERLEADA® or enzalutamide between December 16, 2018 – December 31, 2023, based on patient data in electronic databases. There were 1,800 ERLEADA® and 1,909 enzalutamide initiators who met study criteria.
The analysis demonstrated patients with mCSPC who initiated ERLEADA® as their first ARPI had a statistically significant 23 percent reduction in their risk of death at 24 months compared to patients who initiated on enzalutamide (hazard ratio [HR], 0.77; 95% confidence interval [CI], 0.62-0.96; P<0.019). The proportion of patients alive at 24 months (87.6 percent) observed in the ERLEADA® cohort in this real-world analysis is consistent with that in the Phase 3 TITAN trial (82.4 percent).1 TITAN demonstrated a statistically significant superior overall survival benefit of ERLEADA® plus androgen deprivation therapy (ADT) compared to ADT alone at the primary analysis after a median 22.7 months of follow-up (HR 0.67; 95% CI, 0.51-0.89; P=0.005) and at the final analysis after a median 44 months of follow-up (HR 0.65; 95% CI, 0.53-0.79; P<0.0001).1,2
"This real-world evidence showed a statistically significant and clinically meaningful improvement in survival with apalutamide over enzalutamide in patients with mCSPC at 24 months," said Neal Shore, M.D., F.A.C.S., Steering Committee Chair and Medical Director, Carolina Urologic Research Center and study investigator.* "Head-to-head, randomized and controlled Phase 3 studies have been the gold standard for comparing the effectiveness of oncology medicines, however, prospective ARPI comparator trials have not been conducted. This real-world study is provocative as the comprehensive data and rigorous methodology used in this study offers real-world insights on overall survival which can provide prescribers with information to consider when choosing an ARPI."
"ERLEADA is the only ARPI to demonstrate a survival benefit as early as 22 months, as seen in the TITAN study. Since ERLEADA's approval, multiple ARPIs have been introduced, but no one has directly compared their effectiveness on a large scale – until now," said Luca Dezzani, M.D., U.S. Vice President, Medical Affairs, Solid Tumors, Johnson & Johnson Innovative Medicine. "With a decade-plus legacy in prostate cancer, we have pushed the field further with this additional evidence showing an overall survival benefit with ERLEADA, which is a patient-centric option taken as just one pill, once daily."
Some limitations of this study include potential miscoding or missing information in the data sources; however, the data sources used in this study were deemed fit for purpose to identify the patient population correctly and to assess survival. Lastly, while survival was assessed at 24 months for statistical comparison, longer-term studies are needed to fully evaluate the therapeutic effects of these treatments.
About Prostate Cancer
Approximately 300,000 people are diagnosed with prostate cancer each year in the U.S.3 Up to 40 percent of patients will be classified as high-risk.4 Despite advancements in treatment, disease recurrence remains substantial; up to 50% of patients within ten years of surgery experience recurrence and carry a significant risk of disease progression and death.5 It's estimated that more than 35,000 men will succumb to their prostate cancer in 2024, which reinforces the importance of choosing the best possible therapy early for patients with advanced prostate cancer.3
About ERLEADA®
ERLEADA® (apalutamide) is an androgen receptor inhibitor indicated for the treatment of patients with non-metastatic castration-resistant prostate cancer (nmCRPC) and for the treatment of patients with metastatic castration-sensitive prostate cancer (mCSPC). ERLEADA® received U.S. Food and Administration (FDA) approval for nmCRPC in February 2018 and received U.S. FDA approval for mCSPC in September 2019. ERLEADA® is the first and only next-generation androgen receptor inhibitor offering a once-daily, single-tablet treatment option for patients. To date, more than 200,000 patients worldwide have been treated with ERLEADA®. Additional studies are ongoing in the evaluation of ERLEADA® for the treatment of localized high-risk or locally advanced prostate cancer, including the Phase 3 ATLAS (NCT02531516) and PROTEUS (NCT03767244) studies.
For more information, visit www.ERLEADA.com.
ERLEADA® IMPORTANT SAFETY INFORMATION
WARNINGS AND PRECAUTIONS
Cerebrovascular and Ischemic Cardiovascular Events — In a randomized study (SPARTAN) of patients with nmCRPC, ischemic cardiovascular events occurred in 3.7% of patients treated with ERLEADA® and 2% of patients treated with placebo. In a randomized study (TITAN) in patients with mCSPC, ischemic cardiovascular events occurred in 4.4% of patients treated with ERLEADA® and 1.5% of patients treated with placebo. Across the SPARTAN and TITAN studies, 4 patients (0.3%) treated with ERLEADA® and 2 patients (0.2%) treated with placebo died from an ischemic cardiovascular event. Patients with history of unstable angina, myocardial infarction, congestive heart failure, stroke, or transient ischemic attack within 6 months of randomization were excluded from the SPARTAN and TITAN studies.
In the SPARTAN study, cerebrovascular events occurred in 2.5% of patients treated with ERLEADA® and 1% of patients treated with placebo. In the TITAN study, cerebrovascular events occurred in 1.9% of patients treated with ERLEADA® and 2.1% of patients treated with placebo. Across the SPARTAN and TITAN studies, 3 patients (0.2%) treated with ERLEADA®, and 2 patients (0.2%) treated with placebo died from a cerebrovascular event.
Cerebrovascular and ischemic cardiovascular events, including events leading to death, occurred in patients receiving ERLEADA®. Monitor for signs and symptoms of ischemic heart disease and cerebrovascular disorders. Optimize management of cardiovascular risk factors, such as hypertension, diabetes, or dyslipidemia. Consider discontinuation of ERLEADA® for Grade 3 and 4 events.
Fractures — In a randomized study (SPARTAN) of patients with nmCRPC, fractures occurred in 12% of patients treated with ERLEADA® and in 7% of patients treated with placebo. In a randomized study (TITAN) of patients with mCSPC, fractures occurred in 9% of patients treated with ERLEADA® and in 6% of patients treated with placebo. Evaluate patients for fracture risk. Monitor and manage patients at risk for fractures according to established treatment guidelines and consider use of bone-targeted agents.
Falls — In a randomized study (SPARTAN), falls occurred in 16% of patients treated with ERLEADA® compared with 9% of patients treated with placebo. Falls were not associated with loss of consciousness or seizure. Falls occurred in patients receiving ERLEADA® with increased frequency in the elderly. Evaluate patients for fall risk.
Seizure — In two randomized studies (SPARTAN and TITAN), 5 patients (0.4%) treated with ERLEADA® and 1 patient treated with placebo (0.1%) experienced a seizure. Permanently discontinue ERLEADA® in patients who develop a seizure during treatment. It is unknown whether anti-epileptic medications will prevent seizures with ERLEADA®. Advise patients of the risk of developing a seizure while receiving ERLEADA® and of engaging in any activity where sudden loss of consciousness could cause harm to themselves or others.
Severe Cutaneous Adverse Reactions — Fatal and life-threatening cases of severe cutaneous adverse reactions (SCARs), including Stevens-Johnson syndrome/toxic epidermal necrolysis (SJS/TEN), and drug reaction with eosinophilia and systemic symptoms (DRESS) occurred in patients receiving ERLEADA®.
Monitor patients for the development of SCARs. Advise patients of the signs and symptoms of SCARs (eg, a prodrome of fever, flu-like symptoms, mucosal lesions, progressive skin rash, or lymphadenopathy). If a SCAR is suspected, interrupt ERLEADA® until the etiology of the reaction has been determined. Consultation with a dermatologist is recommended. If a SCAR is confirmed, or for other Grade 4 skin reactions, permanently discontinue ERLEADA® [see Dosage and Administration (2.2)].
Interstitial Lung Disease (ILD)/Pneumonitis — Fatal and life-threatening interstitial lung disease (ILD) or pneumonitis can occur in patients treated with ERLEADA®.
Post-marketing cases of ILD/pneumonitis, including fatal cases, occurred in patients treated with ERLEADA®. Across clinical trials (TITAN and SPARTAN, n=1327), 0.8% of patients treated with ERLEADA® experienced ILD/pneumonitis, including 0.2% who experienced Grade 3 events [see Adverse Reactions (6.1, 6.2)].
Monitor patients for new or worsening symptoms indicative of ILD/pneumonitis (eg, dyspnea, cough, fever). Immediately withhold ERLEADA® if ILD/pneumonitis is suspected. Permanently discontinue ERLEADA® in patients with severe ILD/pneumonitis or if no other potential causes of ILD/pneumonitis are identified [see Dosage and Administration (2.2)].
Embryo-Fetal Toxicity — The safety and efficacy of ERLEADA® have not been established in females. Based on findings from animals and its mechanism of action, ERLEADA® can cause fetal harm and loss of pregnancy when administered to a pregnant female. Advise males with female partners of reproductive potential to use effective contraception during treatment and for 3 months after the last dose of ERLEADA® [see Use in Specific Populations (8.1, 8.3)].
ADVERSE REACTIONS
The most common adverse reactions (≥10%) that occurred more frequently in the ERLEADA®-treated patients (≥2% over placebo) from the randomized placebo-controlled clinical trials (TITAN and SPARTAN) were fatigue, arthralgia, rash, decreased appetite, fall, weight decreased, hypertension, hot flush, diarrhea, and fracture.
Laboratory Abnormalities — All Grades (Grade 3-4)
Rash — In 2 randomized studies (SPARTAN and TITAN), rash was most commonly described as macular or maculopapular. Adverse reactions of rash were 26% with ERLEADA® vs 8% with placebo. Grade 3 rashes (defined as covering >30% body surface area [BSA]) were reported with ERLEADA® treatment (6%) vs placebo (0.5%).
The onset of rash occurred at a median of 83 days. Rash resolved in 78% of patients within a median of 78 days from onset of rash. Rash was commonly managed with oral antihistamines, topical corticosteroids, and 19% of patients received systemic corticosteroids. Dose reduction or dose interruption occurred in 14% and 28% of patients, respectively. Of the patients who had dose interruption, 59% experienced recurrence of rash upon reintroduction of ERLEADA®.
Hypothyroidism — In 2 randomized studies (SPARTAN and TITAN), hypothyroidism was reported for 8% of patients treated with ERLEADA® and 1.5% of patients treated with placebo based on assessments of thyroid-stimulating hormone (TSH) every 4 months. Elevated TSH occurred in 25% of patients treated with ERLEADA® and 7% of patients treated with placebo. The median onset was at the first scheduled assessment. There were no Grade 3 or 4 adverse reactions. Thyroid replacement therapy, when clinically indicated, should be initiated or dose adjusted.
DRUG INTERACTIONS
Effect of Other Drugs on ERLEADA® — Co-administration of a strong CYP2C8 or CYP3A4 inhibitor is predicted to increase the steady-state exposure of the active moieties. No initial dose adjustment is necessary; however, reduce the ERLEADA® dose based on tolerability [see Dosage and Administration (2.2)].
Effect of ERLEADA® on Other Drugs
CYP3A4, CYP2C9, CYP2C19, and UGT Substrates — ERLEADA® is a strong inducer of CYP3A4 and CYP2C19, and a weak inducer of CYP2C9 in humans. Concomitant use of ERLEADA® with medications that are primarily metabolized by CYP3A4, CYP2C19, or CYP2C9 can result in lower exposure to these medications. Substitution for these medications is recommended when possible or evaluate for loss of activity if medication is continued. Concomitant administration of ERLEADA® with medications that are substrates of UDP-glucuronosyl transferase (UGT) can result in decreased exposure. Use caution if substrates of UGT must be co-administered with ERLEADA® and evaluate for loss of activity.
P-gp, BCRP, or OATP1B1 Substrates — Apalutamide is a weak inducer of P-glycoprotein (P-gp), breast cancer resistance protein (BCRP), and organic anion transporting polypeptide 1B1 (OATP1B1) clinically. Concomitant use of ERLEADA® with medications that are substrates of P-gp, BCRP, or OATP1B1 can result in lower exposure of these medications. Use caution if substrates of P-gp, BCRP, or OATP1B1 must be co-administered with ERLEADA® and evaluate for loss of activity if medication is continued.
Please see the full Prescribing Information for ERLEADA®.
About Johnson & Johnson
At Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments are smarter and less invasive, and solutions are personal. Through our expertise in Innovative Medicine and MedTech, we are uniquely positioned to innovate across the full spectrum of healthcare solutions today to deliver the breakthroughs of tomorrow and profoundly impact health for humanity. Learn more at www.jnj.com or at www.innovativemedicine.jnj.com. Follow us at @JanssenUS and @JNJInnovMed. Janssen Research & Development, LLC, and Janssen Biotech, Inc. are Johnson & Johnson companies.
Cautions Concerning Forward-Looking Statements
This press release contains "forward-looking statements" as defined in the Private Securities Litigation Reform Act of 1995 regarding product development and the potential benefits and treatment impact of ERLEADA® (apalutamide). The reader is cautioned not to rely on these forward-looking statements. These statements are based on current expectations of future events. If underlying assumptions prove inaccurate or known or unknown risks or uncertainties materialize, actual results could vary materially from the expectations and projections of Janssen Research & Development, LLC, Janssen Biotech, Inc., and/or Johnson & Johnson. Risks and uncertainties include, but are not limited to: challenges and uncertainties inherent in product research and development, including the uncertainty of clinical success and of obtaining regulatory approvals; uncertainty of commercial success; manufacturing difficulties and delays; competition, including technological advances, new products and patents attained by competitors; challenges to patents; product efficacy or safety concerns resulting in product recalls or regulatory action; changes in behavior and spending patterns of purchasers of health care products and services; changes to applicable laws and regulations, including global health care reforms; and trends toward health care cost containment. A further list and descriptions of these risks, uncertainties and other factors can be found in Johnson & Johnson's Annual Report on Form 10-K for the fiscal year ended December 31, 2023, including in the sections captioned "Cautionary Note Regarding Forward-Looking Statements" and "Item 1A. Risk Factors," and in Johnson & Johnson's subsequent Quarterly Reports on Form 10-Q and other filings with the Securities and Exchange Commission. Copies of these filings are available online at www.sec.gov, www.jnj.com or on request from Johnson & Johnson. None of Janssen Research & Development, LLC, Janssen Biotech, Inc., nor Johnson & Johnson undertakes to update any forward-looking statement as a result of new information or future events or developments.
*Dr. Shore has provided consulting, advisory, and speaking services to Janssen; he has not been paid for any media work.
1 Chi KN, Agarwal, N, Bjartell, A, et al. Apalutamide for Metastatic, Castration-Sensitive Prostate Cancer. N Engl J Med. 2019;381(1):13-24. doi: 10.1056/NEJMoa1903307
2 Chi KN, Chowdhury S, Bjartell A, et al. Apalutamide in patients with metastatic castration-sensitive prostate cancer: final survival analysis of the randomized, double-blind, phase III TITAN study. J Clin Oncol. 2021;39(20):2294-2303. doi: 10.1200/JCO.20.03488
3 Key statistics for prostate cancer. American Cancer Society. Accessed September 2024. https://www.cancer.org/cancer/types/prostate-cancer/about/key-statistics.html
4 Cooperberg MR, Cowan J, Broering JM, et al. High-risk prostate cancer in the United States, 1990-2007. World J Urol. 2008;26(3):211-218. doi: 10.1007/s00345-008-0250-7.
5 Napodano G, Ferro M, Sanseverino R. High-risk prostate cancer: A very challenging disease in the field of uro-oncology. Diagnostics (Basel). 2021;11(3):400. doi: 10.3390/diagnostics11030400.
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