Priority Review reinforces the significant potential of subcutaneous amivantamab in recurrent or metastatic head and neck cancer, where the current five-year survival rate is only 15 percent
Patients achieved rapid, deep and durable responses, including a 42 percent overall response rate with one-third achieving a complete response
Subcutaneous amivantamab is the only therapy in head and neck cancer engineered to target both
EGFR
and
MET
, proven drivers of tumor growth and treatment resistance
RARITAN, N.J.
,
July 30, 2026
/PRNewswire/ -- Johnson & Johnson (NYSE:JNJ) today announced that the U.S. Food and Drug Administration (FDA) has granted Priority Review to the supplemental Biologics License Application (sBLA) for subcutaneous amivantamab and hyaluronidase-lpuj for adults with recurrent or metastatic head and neck squamous cell carcinoma (HNSCC). If approved, it would provide a new treatment for patients whose disease has progressed following platinum-based chemotherapy and a PD-1 or PD-L1 inhibitor. Priority Review is granted to medicines that may offer significant improvements in safety or effectiveness for serious conditions and shortens the FDA review timeline to approximately six months.
1
"One of the hardest things about advanced head and neck cancer is that it can impact our most basic functions, like the ability to speak, eat, and even breathe easily, profoundly affecting patients' daily lives. For those whose disease progresses despite prior treatment, that burden is compounded by limited treatment options and poor outcomes," said Yusri Elsayed, M.D., M.H.Sc., Ph.D., Global Therapeutic Area Head, Oncology, Johnson & Johnson. "Building on the established role of subcutaneous amivantamab in lung cancer, this milestone underscores its continued potential across multiple tumor types and reflects our commitment to bringing innovative treatment options to patients with cancers driven by EGFR and MET pathways."
Subcutaneous amivantamab was designed to target both epidermal growth factor receptor (EGFR) and mesenchymal-epithelial transition (MET) while engaging the immune system, offering a differentiated scientific approach in recurrent or metastatic head and neck squamous cell carcinoma.
2
Overexpression of EGFR and MET receptors is seen in 80 to 90 percent of head and neck squamous cell carcinoma tumors and has been implicated in tumor progression and treatment resistance.
3
Priority Review supported by pivotal results
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The FDA's decision to grant Priority Review is supported by
results
from the pivotal Phase 1b/2 OrigAMI-4 study, which showed that 42 percent of patients responded to treatment with monotherapy subcutaneous amivantamab, with more than one-third of responders achieving a complete response. The study excluded patients with oropharyngeal squamous cell carcinoma caused by human papillomavirus (HPV), as well as those who had received prior anti-EGFR therapy. The findings were presented at the 2026 American Society for Clinical Oncology (ASCO) and
published
simultaneously in the
Journal of Clinical Oncology
.
4,5
RYBREVANT
FASPRO
™ is approved in more than 40 countries, including the United States, Europe, and Japan, as a subcutaneous treatment for non-small cell lung cancer and continues to be evaluated in additional tumor types as part of Johnson & Johnson's broader commitment to advancing transformational oncology therapies.
About the OrigAMI-4 Study
OrigAMI-4 (
NCT06385080
) is an open-label Phase 1b/2 study evaluating RYBREVANT
FASPRO™
(amivantamab and hyaluronidase-lpuj) in recurrent or metastatic head and neck squamous cell carcinoma (R/M HNSCC). The study includes six cohorts exploring RYBREVANT
FASPRO™
across different treatment settings and regimens.
Cohort 1 evaluated RYBREVANT
FASPRO™
as monotherapy in patients with R/M HNSCC who had received prior platinum-based chemotherapy and PD-1/PD-L1 immunotherapy. Patients with HPV-positive oropharyngeal squamous cell carcinoma were excluded, as well as those with prior anti-
EGFR
therapy.
RYBREVANT
FASPRO™
was administered on a weekly schedule during the initial treatment period followed by dosing every three weeks (Q3W), with weight-based dosing adjustments. The primary endpoint across cohorts is overall response rate (ORR), as assessed by investigators, using RECIST v1.1.
† 6
About Head and Neck Squamous Cell Carcinoma
Head and neck squamous cell carcinoma (HNSCC) is the most common form of head and neck cancer, a group of cancers that arise in the mouth, throat, voice box, sinuses, nasal cavity, and salivary glands.
7
It represents approximately 4.5 percent of all cancers worldwide and is the seventh most common cancer globally.
7
Major risk factors include tobacco and alcohol use, as well as infection with high-risk human papillomavirus (HPV).
7
Approximately 80 percent of recurrent or metastatic HNSCC are not driven by HPV, and are typically associated with poorer prognosis and reduced response to treatment.
7,8,9
Despite advances in surgery, radiation, chemotherapy, and immunotherapy, many patients ultimately progress to advanced recurrent or metastatic disease.
10,11
About RYBREVANT
FASPRO™
and RYBREVANT
®
RYBREVANT
FASPRO
™ (amivantamab and hyaluronidase-lpuj) received U.S. FDA approval in December 2025 and is approved in multiple markets worldwide for the treatment of adults with
EGFR
-mutated non-small cell lung cancer (NSCLC), including those with exon 19 deletions, exon 21 L858R substitution mutations, and exon 20 insertion mutations. It is the only subcutaneous therapy approved for these
EGFR
-mutated NSCLC populations and may be used as monotherapy or in combination with LAZCLUZE
®
(lazertinib) or chemotherapy, depending on the specific mutation and treatment setting. For eligible patients, RYBREVANT
FASPRO
™ offers a once-monthly dosing option following initial weekly dosing. RYBREVANT
FASPRO
™ is co-formulated with recombinant human hyaluronidase PH20 (rHuPH20), Halozyme's ENHANZE
®
drug delivery technology.
RYBREVANT
FASPRO™
is approved in the U.S. for the same indications as intravenous RYBREVANT
®
(amivantamab-vmjw) across multiple markets. RYBREVANT
®
is a first-in-class, fully human bispecific antibody targeting
EGFR
and MET, designed to inhibit tumor growth while engaging the immune system.
The effectiveness of RYBREVANT
FASPRO
™ is supported by the established clinical pro RYBREVANT
®
, including data from multiple Phase 3 studies such as
MARIPOSA
, which demonstrated improvements in progression-free and overall survival when used in combination with LAZCLUZE
®
in first-line advanced
EGFR
-mutated NSCLC.
The National Comprehensive Cancer Network
®
(NCCN
®
) Clinical Practice Guidelines in Oncology (NCCN Guidelines
®
)
‡ 12
include amivantamab-vmjw (RYBREVANT
®
) across its FDA-approved treatment settings, including as a Category 1 preferred option in combination with lazertinib (LAZCLUZE
®
) for first-line treatment of patients with locally advanced or metastatic NSCLC with
EGFR
exon 19 deletions or exon 21 L858R mutations. Subcutaneous amivantamab and hyaluronidase-lpuj (RYBREVANT
FASPRO
™) may be substituted for IV amivantamab-vmjw (RYBREVANT
®
) where appropriate. See the latest NCCN Guidelines
®
for NSCLC for complete information.
§ ||
The NCCN Guidelines for Central Nervous System Cancers also include amivantamab (RYBREVANT
®
)-based regimens, including in combination with lazertinib (LAZCLUZE
®
), as the only NCCN-preferred combination options for patients with
EGFR
-mutated NSCLC and brain metastases.
§ ||
Beyond NSCLC, RYBREVANT-based therapies are being investigated across other solid tumors, including head and neck and colorectal cancers.
The legal manufacturer for RYBREVANT
FASPRO
™ and RYBREVANT
®
is Janssen Biotech, Inc. For more information, visit
.
INDICATIONS
RYBREVANT
FASPRO
(amivantamab and hyaluronidase-lpuj) and RYBREVANT (amivantamab-vmjw) are indicated:
in combination with LAZCLUZE (lazertinib) for the first-line treatment of adult patients with locally advanced or metastatic NSCLC with EGFR exon 19 deletions or exon 21 L858R substitution mutations, as detected by an FDA-approved test.
in combination with carboplatin and pemetrexed for the treatment of adult patients with locally advanced or metastatic NSCLC with EGFR exon 19 deletions or exon 21 L858R substitution mutations, whose disease has progressed on or after treatment with an EGFR tyrosine kinase inhibitor.
in combination with carboplatin and pemetrexed for the first-line treatment of adult patients with locally advanced or metastatic NSCLC with EGFR exon 20 insertion mutations, as detected by an FDA-approved test.
as a single agent for the treatment of adult patients with locally advanced or metastatic NSCLC with EGFR exon 20 insertion mutations, as detected by an FDA approved test, whose disease has progressed on or after platinum-based chemotherapy.
IMPORTANT SAFETY INFORMATION FOR RYBREVANT
FASPRO
AND RYBREVANT
13,14
CONTRAINDICATIONS
RYBREVANT
FASPRO
is contraindicated in patients with known hypersensitivity to hyaluronidase or to any of its excipients.
WARNINGS AND PRECAUTIONS
Hypersensitivity and Administration-Related Reactions with RYBREVANT
FASPRO
RYBREVANT
FASPRO
can cause hypersensitivity and administration-related reactions (ARR); signs and symptoms of ARR include dyspnea, flushing, fever, chills, chest discomfort, hypotension, and vomiting. The median time to ARR onset is approximately 2 hours.
RYBREVANT
FASPRO
with LAZCLUZE
In PALOMA-3 (n=206), all Grade ARR occurred in 13% of patients, including 0.5% Grade 3. Of the patients who experienced ARR, 89% occurred with the initial dose (Week 1, Day 1).
Premedicate with antihistamines, antipyretics, and glucocorticoids and administer RYBREVANT
FASPRO
as recommended. Monitor patients for any signs and symptoms of administration-related reactions during injection in a setting where cardiopulmonary resuscitation medication and equipment are available. Interrupt RYBREVANT
FASPRO
injection if ARR is suspected. Resume treatment upon resolution of symptoms or permanently discontinue RYBREVANT
FASPRO
based on severity.
Infusion-Related Reactions with RYBREVANT
RYBREVANT can cause infusion-related reactions (IRR) including anaphylaxis; signs and symptoms of IRR include dyspnea, flushing, fever, chills, nausea, chest discomfort, hypotension, and vomiting. The median time to IRR onset is approximately 1 hour.
RYBREVANT with LAZCLUZE
In MARIPOSA (n=421), IRRs occurred in 63% of patients, including Grade 3 in 5% and Grade 4 in 1% of patients. IRR-related infusion modifications occurred in 54%, dose reduction in 0.7%, and permanent discontinuation of RYBREVANT in 4.5% of patients.
RYBREVANT with Carboplatin and Pemetrexed
Based on the pooled safety population (n=281), IRRs occurred in 50% of patients including Grade 3 (3.2%) adverse reactions. IRR-related infusion modifications occurred in 46%, and permanent discontinuation of RYBREVANT in 2.8% of patients.
RYBREVANT as a Single Agent
In CHRYSALIS (n=302), IRRs occurred in 66% of patients. IRRs occurred in 65% of patients on Week 1 Day 1, 3.4% on Day 2 infusion, 0.4% with Week 2 infusion, and were cumulatively 1.1% with subsequent infusions. 97% were Grade 1-2, 2.2% were Grade 3, and 0.4% were Grade 4. The median time to onset was 1 hour (range: 0.1 to 18 hours) after start of infusion. IRR-related infusion modifications occurred in 62%, and permanent discontinuation of RYBREVANT in 1.3% of patients.
Premedicate with antihistamines, antipyretics, and glucocorticoids and infuse RYBREVANT as recommended. Administer RYBREVANT via a peripheral line on Week 1 and Week 2 to reduce the risk of IRRs. Monitor patients for signs and symptoms of IRRs in a setting where cardiopulmonary resuscitation medication and equipment are available. Interrupt infusion if IRR is suspected. Reduce the infusion rate or permanently discontinue RYBREVANT based on severity. If an anaphylactic reaction occurs, permanently discontinue RYBREVANT.
Interstitial Lung Disease/Pneumonitis
RYBREVANT
FASPRO
and RYBREVANT can cause severe and fatal interstitial lung disease (ILD)/pneumonitis.
RYBREVANT
FASPRO
with LAZCLUZE
In PALOMA-3, ILD/pneumonitis occurred in 6% of patients, including Grade 3 in 1%, Grade 4 in 1.5%, and fatal cases in 1.9% of patients. 5% of patients permanently discontinued RYBREVANT
FASPRO
and LAZCLUZE due to ILD/pneumonitis.
RYBREVANT with LAZCLUZE
In MARIPOSA, ILD/pneumonitis occurred in 3.1% of patients, including Grade 3 in 1.0% and Grade 4 in 0.2% of patients. There was one fatal case of ILD/pneumonitis and 2.9% of patients permanently discontinued RYBREVANT and LAZCLUZE due to ILD/pneumonitis.
RYBREVANT with Carboplatin and Pemetrexed
Based on the pooled safety population, ILD/pneumonitis occurred in 2.1% of patients with 1.8% of patients experiencing Grade 3 ILD/pneumonitis. 2.1% discontinued RYBREVANT due to ILD/pneumonitis.
RYBREVANT as a Single Agent
In CHRYSALIS, ILD/pneumonitis occurred in 3.3% of patients, with 0.7% of patients experiencing Grade 3 ILD/pneumonitis. Three patients (1%) permanently discontinued RYBREVANT due to ILD/pneumonitis.
Monitor patients for new or worsening symptoms indicative of ILD/pneumonitis (e.g., dyspnea, cough, fever). Immediately withhold RYBREVANT
FASPRO
or RYBREVANT and LAZCLUZE (when applicable) in patients with suspected ILD/pneumonitis and permanently discontinue if ILD/pneumonitis is confirmed.
Venous Thromboembolic (VTE) Events with Concomitant Use with LAZCLUZE
RYBREVANT
FASPRO
and RYBREVANT in combination with LAZCLUZE can cause serious and fatal venous thromboembolic (VTE) events, including deep vein thrombosis and pulmonary embolism. Without prophylactic anticoagulation, the majority of these events occurred during the first four months of treatment.
RYBREVANT
FASPRO
with LAZCLUZE
In PALOMA-3 (n=206), all Grade VTE occurred in 11% of patients and 1.5% were Grade 3. 80% (n=164) of patients received prophylactic anticoagulation at study entry, with an all Grade VTE incidence of 7%. In patients who did not receive prophylactic anticoagulation (n=42), all Grade VTE occurred in 17% of patients. In total, 0.5% of patients had VTE leading to dose reductions of RYBREVANT
FASPRO
and no patients required permanent discontinuation. The median time to onset of VTEs was 95 days (range: 17 to 390).
RYBREVANT with LAZCLUZE
In MARIPOSA (n=421), VTEs occurred in 36% of patients including Grade 3 in 10% and Grade 4 in 0.5% of patients. On-study VTEs occurred in 1.2% of patients (n=5) while receiving anticoagulation therapy. There were two fatal cases of VTE (0.5%), 9% of patients had VTE leading to dose interruptions of RYBREVANT, and 7% of patients had VTE leading to dose interruptions of LAZCLUZE; 1% of patients had VTE leading to dose reductions of RYBREVANT, and 0.5% of patients had VTE leading to dose reductions of LAZCLUZE; 3.1% of patients had VTE leading to permanent discontinuation of RYBREVANT, and 1.9% of patients had VTE leading to permanent discontinuation of LAZCLUZE. The median time to onset of VTEs was 84 days (range: 6 to 777).
Administer prophylactic anticoagulation for the first four months of treatment. The use of Vitamin K antagonists is not recommended.
Monitor for signs and symptoms of VTE events and treat as medically appropriate. Withhold RYBREVANT
FASPRO
or RYBREVANT and LAZCLUZE based on severity. Once anticoagulant treatment has been initiated, resume RYBREVANT
FASPRO
or RYBREVANT and LAZCLUZE at the same dose level at the discretion of the healthcare provider. In the event of VTE recurrence despite therapeutic anticoagulation, permanently discontinue RYBREVANT
FASPRO
or RYBREVANT. Treatment can continue with LAZCLUZE at the same dose level at the discretion of the healthcare provider. Refer to the LAZCLUZE Prescribing Information for recommended LAZCLUZE dosage modification.
Dermatologic Adverse Reactions
RYBREVANT
FASPRO
and RYBREVANT can cause severe rash including toxic epidermal necrolysis (TEN), dermatitis acneiform, pruritus and dry skin.
RYBREVANT
FASPRO
with LAZCLUZE
In PALOMA-3, rash occurred in 80% of patients, including Grade 3 in 17% and Grade 4 in 0.5% of patients. Rash leading to dose reduction occurred in 11% of patients, and RYBREVANT
FASPRO
was permanently discontinued due to rash in 1.5% of patients.
RYBREVANT with LAZCLUZE
In MARIPOSA, rash occurred in 86% of patients, including Grade 3 in 26% of patients. The median time to onset of rash was 14 days (range: 1 to 556 days). Rash leading to dose interruptions occurred in 37% of patients for RYBREVANT and 30% for LAZCLUZE, rash leading to dose reductions occurred in 23% of patients for RYBREVANT and 19% for LAZCLUZE, and rash leading to permanent discontinuation occurred in 5% of patients for RYBREVANT and 1.7% for LAZCLUZE.
RYBREVANT with Carboplatin and Pemetrexed
Based on the pooled safety population, rash occurred in 82% of patients, including Grade 3 (15%) adverse reactions. Rash leading to dose reductions occurred in 14% of patients, and 2.5% permanently discontinued RYBREVANT and 3.1% discontinued pemetrexed.
RYBREVANT as a Single Agent
In CHRYSALIS, rash occurred in 74% of patients, including Grade 3 in 3.3% of patients. The median time to onset of rash was 14 days (range: 1 to 276 days). Rash leading to dose reduction occurred in 5% and permanent discontinuation due to rash occurred in 0.7% of patients. Toxic epidermal necrolysis occurred in one patient (0.3%).
When initiating treatment with RYBREVANT
FASPRO
or RYBREVANT and LAZCLUZE, prophylactic and concomitant medications are recommended to reduce the risk and severity of dermatologic adverse reactions. Instruct patients to limit sun exposure during and for 2 months after treatment. Advise patients to wear protective clothing and use broad spectrum UVA/UVB sunscreen.
If skin reactions develop, administer supportive care including topical corticosteroids and topical and/or oral antibiotics. For Grade 3 reactions, add oral steroids and consider dermatologic consultation. Promptly refer patients presenting with severe rash, atypical appearance or distribution, or lack of improvement within 2 weeks to a dermatologist. For patients receiving RYBREVANT
FASPRO
or RYBREVANT in combination with LAZCLUZE, withhold, reduce the dose, or permanently discontinue both drugs based on severity. For patients receiving RYBREVANT
FASPRO
or RYBREVANT as a single agent or in combination with carboplatin and pemetrexed, withhold, dose reduce or permanently discontinue RYBREVANT
FASPRO
or RYBREVANT based on severity.
Hepatotoxicity
LAZCLUZE in combination with amivantamab can cause severe hepatotoxicity (including increased ALT and AST).
RYBREVANT with LAZCLUZE
In MARIPOSA, based on adverse reaction data, hepatotoxicity occurred in 49% of patients treated with LAZCLUZE, including Grade 3 in 9.3% of patients and Grade 4 in 0.5%. LAZCLUZE was interrupted for an adverse reaction of hepatotoxicity in 8% of patients, the dose was reduced in 1.4% and permanently discontinued in 0.2%.
Perform liver function tests (including ALT, AST, and total bilirubin) before initiation of LAZCLUZE and during treatment, as clinically indicated. Withhold, reduce the dose, or permanently discontinue LAZCLUZE and amivantamab based on severity.
Ocular Toxicity
RYBREVANT
FASPRO
and RYBREVANT can cause ocular toxicity including keratitis, blepharitis, dry eye symptoms, conjunctival redness, blurred vision, visual impairment, ocular itching, eye pruritus and uveitis.
RYBREVANT
FASPRO
with LAZCLUZE
In PALOMA-3
,
all Grade ocular toxicity occurred in 13% of patients, including 0.5% Grade 3.
RYBREVANT with LAZCLUZE
In MARIPOSA, ocular toxicity occurred in 16%, including Grade 3 or 4 ocular toxicity in 0.7% of patients.
RYBREVANT with Carboplatin and Pemetrexed
Based on the pooled safety population, ocular toxicity occurred in 16% of patients. All events were Grade 1 or 2.
RYBREVANT as a Single Agent
In CHRYSALIS, keratitis occurred in 0.7% and uveitis occurred in 0.3% of patients. All events were Grade 1-2.
Promptly refer patients presenting with new or worsening eye symptoms to an ophthalmologist. Withhold, dose reduce or permanently discontinue RYBREVANT
FASPRO
or RYBREVANT and continue LAZCLUZE based on severity.
Embryo-Fetal Toxicity
Based on animal models, RYBREVANT
FASPRO
, RYBREVANT and LAZCLUZE can cause fetal harm when administered to a pregnant woman. Verify pregnancy status of females of reproductive potential prior to initiating RYBREVANT
FASPRO
and RYBREVANT. Advise pregnant women and females of reproductive potential of the potential risk to the fetus. Advise patients of reproductive potential to use effective contraception during treatment and for 3 months after the last dose of RYBREVANT
FASPRO
or RYBREVANT, and for 3 weeks after the last dose of LAZCLUZE.
ADVERSE REACTIONS
RYBREVANT
FASPRO
with
LAZCLUZE
In PALOMA-3 (n=206), the most common adverse reactions (≥20%) were rash (80%), nail toxicity (58%), musculoskeletal pain (50%), fatigue (37%), stomatitis (36%), edema (34%), nausea (30%), diarrhea (22%), vomiting (22%), constipation (22%), decreased appetite (22%), and headache (21%). The most common Grade 3 or 4 laboratory abnormalities (≥2%) were decreased lymphocyte count (6%), decreased sodium (5%), decreased potassium (5%), decreased albumin (4.9%), increased alanine aminotransferase (3.4%), decreased platelet count (2.4%), increased aspartate aminotransferase (2%), increased gamma-glutamyl transferase (2%), and decreased hemoglobin (2%).
Serious adverse reactions occurred in 33% of patients, with those occurring in ≥2% of patients including ILD/pneumonitis (6%); and pneumonia, VTE and fatigue (2.4% each). Death due to adverse reactions occurred in 5% of patients treated with RYBREVANT
FASPRO
, including ILD/pneumonitis (1.9%), pneumonia (1.5%), and respiratory failure and sudden death (1% each).
RYBREVANT
with
LAZCLUZE
In MARIPOSA (n=421), the most common adverse reactions (ARs) (≥20%) were rash (86%), nail toxicity (71%), infusion-related reactions (IRRs) (RYBREVANT) (63%), musculoskeletal pain (47%), stomatitis (43%), edema (43%), VTE (36%), paresthesia (35%), fatigue (32%), diarrhea (31%), constipation (29%), COVID-19 (26%), hemorrhage (25%), dry skin (25%), decreased appetite (24%), pruritus (24%), and nausea (21%). The most common Grade 3 or 4 laboratory abnormalities (≥2%) were decreased albumin (8%), decreased sodium (7%), increased ALT (7%), decreased potassium (5%), decreased hemoglobin (3.8%), increased AST (3.8%), increased GGT (2.6%), and increased magnesium (2.6%).
Serious ARs occurred in 49% of patients, with those occurring in ≥2% of patients including VTE (11%), pneumonia (4%), ILD/pneumonitis and rash (2.9% each), COVID-19 (2.4%), and pleural effusion and IRRs (RYBREVANT) (2.1% each). Fatal ARs occurred in 7% of patients due to death not otherwise specified (1.2%); sepsis and respiratory failure (1% each); pneumonia, myocardial infarction, and sudden death (0.7% each); cerebral infarction, pulmonary embolism (PE), and COVID-19 infection (0.5% each); and ILD/pneumonitis, acute respiratory distress syndrome (ARDS), and cardiopulmonary arrest (0.2% each).
RYBREVANT with Carboplatin and Pemetrexed
In MARIPOSA-2 (n=130), the most common ARs (≥20%) were rash (72%), IRRs (59%), fatigue (51%), nail toxicity (45%), nausea (45%), constipation (39%), edema (36%), stomatitis (35%), decreased appetite (31%), musculoskeletal pain (30%), vomiting (25%), and COVID-19 (21%). The most common Grade 3 to 4 laboratory abnormalities (≥2%) were decreased neutrophils (49%), decreased white blood cells (42%), decreased lymphocytes (28%), decreased platelets (17%), decreased hemoglobin (12%), decreased potassium (11%), decreased sodium (11%), increased alanine aminotransferase (3.9%), decreased albumin (3.8%), and increased gamma-glutamyl transferase (3.1%).
In MARIPOSA-2, serious ARs occurred in 32% of patients, with those occurring in >2% of patients including dyspnea (3.1%), thrombocytopenia (3.1%), sepsis (2.3%), and PE (2.3%). Fatal ARs occurred in 2.3% of patients; these included respiratory failure, sepsis, and ventricular fibrillation (0.8% each).
In PAPILLON (n=151), the most common ARs (≥20%) were rash (90%), nail toxicity (62%), stomatitis (43%), IRRs (42%), fatigue (42%), edema (40%), constipation (40%), decreased appetite (36%), nausea (36%), COVID-19 (24%), diarrhea (21%), and vomiting (21%). The most common Grade 3 to 4 laboratory abnormalities (≥2%) were decreased albumin (7%), increased alanine aminotransferase (4%), increased gamma-glutamyl transferase (4%), decreased sodium (7%), decreased potassium (11%), decreased magnesium (2%), and decreases in white blood cells (17%), hemoglobin (11%), neutrophils (36%), platelets (10%), and lymphocytes (11%).
In PAPILLON, serious ARs occurred in 37% of patients, with those occurring in ≥2% of patients including rash, pneumonia, ILD, PE, vomiting, and COVID-19. Fatal adverse reactions occurred in 7 patients (4.6%) due to pneumonia, cerebrovascular accident, cardio-respiratory arrest, COVID-19, sepsis, and death not otherwise specified.
RYBREVANT as a Single Agent
In CHRYSALIS (n=129), the most common ARs (≥20%) were rash (84%), IRR (64%), paronychia (50%), musculoskeletal pain (47%), dyspnea (37%), nausea (36%), fatigue (33%), edema (27%), stomatitis (26%), cough (25%), constipation (23%), and vomiting (22%). The most common Grade 3 to 4 laboratory abnormalities (≥2%) were decreased lymphocytes (8%), decreased albumin (8%), decreased phosphate (8%), decreased potassium (6%), increased alkaline phosphatase (4.8%), increased glucose (4%), increased gamma-glutamyl transferase (4%), and decreased sodium (4%).
Serious ARs occurred in 30% of patients, with those occurring in ≥2% of patients including PE, pneumonitis/ILD, dyspnea, musculoskeletal pain, pneumonia, and muscular weakness. Fatal adverse reactions occurred in 2 patients (1.5%) due to pneumonia and 1 patient (0.8%) due to sudden death.
LAZCLUZE DRUG INTERACTIONS
Avoid concomitant use of LAZCLUZE with strong and moderate CYP3A4 inducers. Consider an alternate concomitant medication with no potential to induce CYP3A4.
Monitor for adverse reactions associated with a CYP3A4 or BCRP substrate where minimal concentration changes may lead to serious adverse reactions, as recommended in the approved product labeling for the CYP3A4 or BCRP substrate.
Please see full Prescribing Information for
RYBREVANT
FASPRO
,
RYBREVANT
and
LAZCLUZE
.
cp-491009v2
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
or at
. Follow us at
@JNJInnovMed
.
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
RYBREVANT-based regimens. 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 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 most recent Annual Report on Form 10-K, 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
,
,
or on request from Johnson & Johnson. Johnson & Johnson does not undertake to update any forward-looking statement as a result of new information or future events or developments.
†
RECIST (version 1.1) refers to Response Evaluation Criteria in Solid Tumors, which is a standard way to measure how well
solid tumors respond to treatment and is based on whether tumors shrink, stay the same or get bigger.
‡
The NCCN content does not constitute medical advice and should not be used in place of seeking professional medical advice, diagnosis or treatment by licensed practitioners. NCCN makes no warranties of any kind whatsoever regarding their content, use or application and disclaims any responsibility for their application or use in any way.
§
See the NCCN Guidelines for detailed recommendations, including other treatment options.
||
The NCCN Guidelines for NSCLC provide recommendations for certain individual biomarkers that should be tested and recommend testing techniques but do not endorse any specific commercially available biomarker assays or commercial laboratories.
______________________________________
1
U.S. Food & Drug Administration. Priority Review. Accessed July 2026.
2
Harrington KJ, Rosenberg AJ, Yang MH, et al. Subcutaneous amivantamab in recurrent/metastatic head and neck squamous cell cancer after disease progression on checkpoint inhibitor and chemotherapy: Preliminary results from the phase 1b/2 OrigAMI-4 study.
Oral Oncol
. 2025;171:107791.
3
Kalyankrishna S, Grandis JR. Epidermal growth factor receptor biology in head and neck cancer.
J Clin Oncol
. 2006;24(17):2666–2672.
4
Burtness B, Rosenberg AJ, Calderon B, et al. Amivantamab in recurrent/metastatic head and neck squamous cell cancer after disease progression on immune checkpoint inhibitor and chemotherapy. Pivotal results from the phase 1b/2 OrigAMI-4 study. Presented at: The 2026 American Society of Clinical Oncology (ASCO) Annual Meeting; May 31, 2026; Chicago, Illinois.
5
Burtness B, Rosenberg AJ, Calderon B, et al. Amivantamab in recurrent/metastatic head and neck squamous cell carcinoma after checkpoint inhibitor and chemotherapy: pivotal results from the phase 1b/2 OrigAMI-4 study.
J Clin Onc.
May 31, 2026. doi:10.1200/JCO-26-01042.
6
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RYBREVANT
FASPRO
[Prescribing Information]. Horsham, PA: Janssen Biotech, Inc.
14
RYBREVANT [Prescribing Information]. Horsham, PA: Janssen Biotech, Inc.
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