NDC 51991-892 Erlotinib

Erlotinib Hydrochloride

NDC Product Code 51991-892

NDC CODE: 51991-892

Proprietary Name: Erlotinib What is the Proprietary Name?
The proprietary name also known as the trade name is the name of the product chosen by the medication labeler for marketing purposes.

Non-Proprietary Name: Erlotinib Hydrochloride What is the Non-Proprietary Name?
The non-proprietary name is sometimes called the generic name. The generic name usually includes the active ingredient(s) of the product.

Product Characteristics

Color(s):
WHITE (C48325)
Shape: ROUND (C48348)
Size(s):
6 MM
9 MM
10 MM
Imprint(s):
N;25
N;100
N;150
Score: 1

NDC Code Structure

  • 51991 - Breckenridge Pharmaceutical, Inc.

NDC 51991-892-33

Package Description: 30 TABLET, FILM COATED in 1 BOTTLE

NDC Product Information

Erlotinib with NDC 51991-892 is a a human prescription drug product labeled by Breckenridge Pharmaceutical, Inc.. The generic name of Erlotinib is erlotinib hydrochloride. The product's dosage form is tablet, film coated and is administered via oral form.

Labeler Name: Breckenridge Pharmaceutical, Inc.

Dosage Form: Tablet, Film Coated - A solid dosage form that contains medicinal substances with or without suitable diluents and is coated with a thin layer of a water-insoluble or water-soluble polymer.

Product Type: Human Prescription Drug What kind of product is this?
Indicates the type of product, such as Human Prescription Drug or Human Over the Counter Drug. This data element matches the “Document Type” field of the Structured Product Listing.

Erlotinib Active Ingredient(s)

What is the Active Ingredient(s) List?
This is the active ingredient list. Each ingredient name is the preferred term of the UNII code submitted.

  • ERLOTINIB HYDROCHLORIDE 150 mg/1

Inactive Ingredient(s)

About the Inactive Ingredient(s)
The inactive ingredients are all the component of a medicinal product OTHER than the active ingredient(s). The acronym "UNII" stands for “Unique Ingredient Identifier” and is used to identify each inactive ingredient present in a product.

  • HYPROMELLOSE, UNSPECIFIED (UNII: 3NXW29V3WO)
  • LACTOSE MONOHYDRATE (UNII: EWQ57Q8I5X)
  • MICROCRYSTALLINE CELLULOSE (UNII: OP1R32D61U)
  • POLYETHYLENE GLYCOL 4000 (UNII: 4R4HFI6D95)
  • SODIUM LAURYL SULFATE (UNII: 368GB5141J)
  • SODIUM STARCH GLYCOLATE TYPE A POTATO (UNII: 5856J3G2A2)
  • SODIUM STEARYL FUMARATE (UNII: 7CV7WJK4UI)
  • TITANIUM DIOXIDE (UNII: 15FIX9V2JP)
  • HYPROMELLOSE, UNSPECIFIED (UNII: 3NXW29V3WO)
  • LACTOSE MONOHYDRATE (UNII: EWQ57Q8I5X)
  • MICROCRYSTALLINE CELLULOSE (UNII: OP1R32D61U)
  • POLYETHYLENE GLYCOL 4000 (UNII: 4R4HFI6D95)
  • SODIUM LAURYL SULFATE (UNII: 368GB5141J)
  • SODIUM STARCH GLYCOLATE TYPE A POTATO (UNII: 5856J3G2A2)
  • SODIUM STEARYL FUMARATE (UNII: 7CV7WJK4UI)
  • TITANIUM DIOXIDE (UNII: 15FIX9V2JP)
  • HYPROMELLOSE, UNSPECIFIED (UNII: 3NXW29V3WO)
  • LACTOSE MONOHYDRATE (UNII: EWQ57Q8I5X)
  • MICROCRYSTALLINE CELLULOSE (UNII: OP1R32D61U)
  • POLYETHYLENE GLYCOL 4000 (UNII: 4R4HFI6D95)
  • SODIUM LAURYL SULFATE (UNII: 368GB5141J)
  • SODIUM STARCH GLYCOLATE TYPE A POTATO (UNII: 5856J3G2A2)
  • SODIUM STEARYL FUMARATE (UNII: 7CV7WJK4UI)
  • TITANIUM DIOXIDE (UNII: 15FIX9V2JP)

Administration Route(s)

What are the Administration Route(s)?
The translation of the route code submitted by the firm, indicating route of administration.

  • Oral - Administration to or by way of the mouth.
  • Oral - Administration to or by way of the mouth.

Pharmacological Class(es)

What is a Pharmacological Class?
These are the reported pharmacological class categories corresponding to the SubstanceNames listed above.

  • Kinase Inhibitor - [EPC] (Established Pharmacologic Class)
  • Protein Kinase Inhibitors - [MoA] (Mechanism of Action)

Product Labeler Information

What is the Labeler Name?
Name of Company corresponding to the labeler code segment of the Product NDC.

Labeler Name: Breckenridge Pharmaceutical, Inc.
Labeler Code: 51991
FDA Application Number: ANDA208488 What is the FDA Application Number?
This corresponds to the NDA, ANDA, or BLA number reported by the labeler for products which have the corresponding Marketing Category designated. If the designated Marketing Category is OTC Monograph Final or OTC Monograph Not Final, then the Application number will be the CFR citation corresponding to the appropriate Monograph (e.g. “part 341”). For unapproved drugs, this field will be null.

Marketing Category: ANDA - A product marketed under an approved Abbreviated New Drug Application. What is the Marketing Category?
Product types are broken down into several potential Marketing Categories, such as NDA/ANDA/BLA, OTC Monograph, or Unapproved Drug. One and only one Marketing Category may be chosen for a product, not all marketing categories are available to all product types. Currently, only final marketed product categories are included. The complete list of codes and translations can be found at www.fda.gov/edrls under Structured Product Labeling Resources.

Start Marketing Date: 11-05-2019 What is the Start Marketing Date?
This is the date that the labeler indicates was the start of its marketing of the drug product.

Listing Expiration Date: 12-31-2020 What is the Listing Expiration Date?
This is the date when the listing record will expire if not updated or certified by the product labeler.

Exclude Flag: N What is the NDC Exclude Flag?
This field indicates whether the product has been removed/excluded from the NDC Directory for failure to respond to FDA’s requests for correction to deficient or non-compliant submissions. Values = ‘Y’ or ‘N’.

* Please review the disclaimer below.

Erlotinib Product Labeling Information

The product labeling information includes all published material associated to a drug. Product labeling documents include information like generic names, active ingredients, ingredient strength dosage, routes of administration, appearance, usage, warnings, inactive ingredients, etc.

Product Labeling Index

1.1 Non-Small Cell Lung Cancer (Nsclc)

  • Erlotinib tablets are indicated for:The treatment of patients with metastatic non-small cell lung cancer (NSCLC) whose tumors have epidermal growth factor receptor (EGFR) exon 19 deletions or exon 21 (L858R) substitution mutations as detected by an FDA-approved test receiving first-line, maintenance, or second or greater line treatment after progression following at least one prior chemotherapy regimen [see Clinical Studies (14.1, 14.3)].Limitations of use:Safety and efficacy of erlotinib tablets have not been established in patients with NSCLC whose tumors have other EGFR mutations [see Clinical Studies (14.1, 14.2)].Erlotinib tablets are not recommended for use in combination with platinum-based chemotherapy [see Clinical Studies (14.4)].

1.2 Pancreatic Cancer

Erlotinib tablets in combination with gemcitabine are indicated for the first-line treatment of patients with locally advanced, unresectable or metastatic pancreatic cancer [see Clinical Studies (14.5)].

2.1 Selection Of Patients With Metastatic Nsclc

Select patients for the treatment of metastatic NSCLC with erlotinib tablets based on the presence of EGFR exon 19 deletions or exon 21 (L858R) substitution mutations in tumor or plasma specimens [See Clinical Studies (14.1, 14.2)].If these mutations are not detected in a plasma specimen, test tumor tissue if available. Information on FDA-approved tests for the detection of EGFR mutations in NSCLC is available at: http://www.fda.gov/CompanionDiagnostics

The recommended daily dose of erlotinib tablets for NSCLC is 150 mg taken on an empty stomach, i.e., at least one hour before or two hours after the ingestion of food. Treatment should continue until disease progression or unacceptable toxicity occurs.

The recommended daily dose of erlotinib tablets for pancreatic cancer is 100 mg taken once daily in combination with gemcitabine. Take erlotinib tablets on an empty stomach, i.e., at least one hour before or two hours after the ingestion of food. Treatment should continue until disease progression or unacceptable toxicity occurs [see Clinical Studies (14.5)].

2.4 Dose Modifications

Adverse ReactionsPulmonaryFor additional information see Warnings and Precautions (5).Interstitial Lung Disease (ILD)Discontinue erlotinib tabletsDuring diagnostic evaluation for possible ILDWithhold erlotinib tabletsReduce erlotinib tablets by 50 mg decrements when restarting therapy following withholding treatment for a dose-limiting toxicity that has resolved to baseline or grade ≤ 1.HepaticSevere hepatic toxicity that does not improve significantly or resolve within three weeksDiscontinue erlotinib tabletsIn patients with pre-existing hepatic impairment or biliary obstruction for doubling of bilirubin or tripling of transaminases values over baselineWithhold erlotinib tablets and consider discontinuationIn patients without pre-existing hepatic impairment for total bilirubin levels greater than 3 times the upper limit of normal or transaminases greater than 5 times the upper limit of normal Withhold erlotinib tablets and consider discontinuationRenalFor severe (CTCAE grade 3 to 4) renal toxicityWithhold erlotinib tablets and consider discontinuationGastrointestinalGastrointestinal perforationDiscontinue erlotinib tabletsFor persistent severe diarrhea not responsive to medical management (e.g., loperamide)Withhold erlotinib tabletsSkinSevere bullous, blistering or exfoliating skin conditionsDiscontinue erlotinib tabletsFor severe rash not responsive to medical managementWithhold erlotinib tabletsOcularCorneal perforation or severe ulcerationDiscontinue erlotinib tabletsFor keratitis of (NCI-CTC version 4.0) grade 3-4 or for grade 2 lasting more than 2 weeksWithhold erlotinib tabletsFor acute/worsening ocular disorders such as eye painWithhold erlotinib tablets and consider discontinuationDrug InteractionsCYP3A4 inhibitorsFor additional information see Drug Interactions (7).If severe reactions occur with concomitant use of strong CYP3A4 inhibitors [such as atazanavir, clarithromycin, indinavir, itraconazole, ketoconazole, nefazodone, nelfinavir, ritonavir, saquinavir, telithromycin, troleandomycin (TAO), voriconazole, or grapefruit or grapefruit juice] or when using concomitantly with an inhibitor of both CYP3A4 and CYP1A2 (e.g., ciprofloxacin)Reduce erlotinib tablets by 50 mg decrements; avoid concomitant use if possibleCYP3A4 inducersConcomitant use with CYP3A4 inducers, such as rifampin, rifabutin, rifapentine, phenytoin, carbamazepine, phenobarbital, or St. John's WortIncrease erlotinib tablets by 50 mg increments at 2-week intervals to a maximum of 450 mg as tolerated. Avoid concomitant use if possibleConcurrent Cigarette Smoking For additional information see Clinical Pharmacology (12.3).Concurrent cigarette smokingIncrease erlotinib tablets by 50 mg increments at 2-week intervals to a maximum of 300 mg. Immediately reduce the dose of erlotinib tablets to the recommended dose (150 mg or 100 mg daily) upon cessation of smokingProton Pump inhibitorsSeparation of doses may not eliminate the interaction since proton pump inhibitors affect the pH of the upper GI tract for an extended periodAvoid concomitant use if possibleH2-receptor antagonistsIf treatment with an H2-receptor antagonist such as ranitidine is required, separate dosing.Erlotinib tablets must be taken 10 hours after the H2-receptor antagonist dosing and at least 2 hours before the next dose of the H2 receptor antagonistAntacidsThe effect of antacids on erlotinib pharmacokinetics has not been evaluated.The antacid dose and the erlotinib tablets dose should be separated by several hours, if an antacid is necessary

3. Dosage Forms And Strengths

25 mg tablets: round, biconvex, white film-coated tablets debossed with "N 25" on one side and plain on other side.100 mg tablets: round, biconvex, white film-coated tablets debossed with "N 100" on one side and plain on other side.150 mg tablets: round, biconvex, white film-coated tablets debossed with "N 150" on one side and plain on other side.

4. Contraindications

None.

5.1 Interstitial Lung Disease (Ild)

Cases of serious ILD, including fatal cases, can occur with erlotinib tablets treatment. The overall incidence of ILD in approximately 32,000 erlotinib tablets-treated patients in uncontrolled studies and studies with concurrent chemotherapy was approximately 1.1%. In patients with ILD, the onset of symptoms was between 5 days to more than 9 months (median 39 days) after initiating erlotinib tablets therapy.Withhold erlotinib tablets for acute onset of new or progressive unexplained pulmonary symptoms such as dyspnea, cough, and fever pending diagnostic evaluation. If ILD is confirmed, permanently discontinue erlotinib tablets [see Dosage and Administration (2.4)].

5.2 Renal Failure

Hepatorenal syndrome, severe acute renal failure including fatal cases, and renal insufficiency can occur with erlotinib tablets treatment. Renal failure may arise from exacerbation of underlying baseline hepatic impairment or severe dehydration. The pooled incidence of severe renal impairment in the 3 monotherapy lung cancer studies was 0.5% in the erlotinib tablets arms and 0.8% in the control arms. The incidence of renal impairment in the pancreatic cancer study was 1.4% in the erlotinib tablets plus gemcitabine arm and 0.4% in the control arm. Withhold erlotinib tablets in patients developing severe renal impairment until renal toxicity is resolved. Perform periodic monitoring of renal function and serum electrolytes during erlotinib tablets treatment [see Adverse Reactions (6.1) and Dosage and Administration (2.4)].

5.3 Hepatotoxicity With Or Without Hepatic Impairment

Hepatic failure and hepatorenal syndrome, including fatal cases, can occur with erlotinib tablets treatment in patients with normal hepatic function; the risk of hepatic toxicity is increased in patients with baseline hepatic impairment. In clinical studies where patients with moderate to severe hepatic impairment were excluded, the pooled incidence of hepatic failure in the 3 monotherapy lung cancer studies was 0.4% in the erlotinib tablets arms and 0% in the control arms. The incidence of hepatic failure in the pancreatic cancer study was 0.4% in the erlotinib tablets plus gemcitabine arm and 0.4% in the control arm. In a pharmacokinetic study in 15 patients with moderate hepatic impairment (Child-Pugh B) associated with significant liver tumor burden, 10 of these 15 patients died within 30 days of the last erlotinib tablets dose. One patient died from hepatorenal syndrome, 1 patient died from rapidly progressing liver failure and the remaining 8 patients died from progressive disease. Six out of the 10 patients who died had baseline total bilirubin > 3 × ULN.Perform periodic liver testing (transaminases, bilirubin, and alkaline phosphatase) during treatment with erlotinib tablets. Increased frequency of monitoring of liver function is required for patients with pre-existing hepatic impairment or biliary obstruction. Withhold erlotinib tablets in patients without pre-existing hepatic impairment for total bilirubin levels greater than 3 times the upper limit of normal or transaminases greater than 5 times the upper limit of normal. Withhold erlotinib tablets in patients with pre-existing hepatic impairment or biliary obstruction for doubling of bilirubin or tripling of transaminases values over baseline. Discontinue erlotinib tablets in patients whose abnormal liver tests meeting the above criteria do not improve significantly or resolve within three weeks [see Dosage and Administration (2.4) and Clinical Pharmacology (12.3)].

5.4 Gastrointestinal Perforation

Gastrointestinal perforation, including fatal cases, can occur with erlotinib tablets treatment. Patients receiving concomitant anti-angiogenic agents, corticosteroids, NSAIDs, or taxane-based chemotherapy, or who have prior history of peptic ulceration or diverticular disease may be at increased risk of perforation [see Adverse Reactions (6.1, 6.2)]. The pooled incidence of gastrointestinal perforation in the 3 monotherapy lung cancer studies was 0.2% in the erlotinib tablets arms and 0.1% in the control arms. The incidence of gastrointestinal perforation in the pancreatic cancer study was 0.4% in the erlotinib tablets plus gemcitabine arm and 0% in the control arm. Permanently discontinue erlotinib tablets in patients who develop gastrointestinal perforation [see Dosage and Administration (2.4)].

5.5 Bullous And Exfoliative Skin Disorders

Bullous, blistering and exfoliative skin conditions, including cases suggestive of Stevens-Johnson syndrome/toxic epidermal necrolysis, which in some cases were fatal, can occur with erlotinib tablets treatment [see Adverse Reactions (6.1, 6.2)]. The pooled incidence of bullous and exfoliative skin disorders in the 3 monotherapy lung cancer studies was 1.2% in the erlotinib tablets arms and 0% in the control arms. The incidence of bullous and exfoliative skin disorders in the pancreatic cancer study was 0.4% in the erlotinib tablets plus gemcitabine arm and 0% in the control arm. Discontinue erlotinib tablets treatment if the patient develops severe bullous, blistering or exfoliating conditions [see Dosage and Administration (2.4)].

5.6 Cerebrovascular Accident

In the pancreatic carcinoma trial, seven patients in the erlotinib tablets/gemcitabine group developed cerebrovascular accidents (incidence: 2.5%). One of these was hemorrhagic and was the only fatal event. In comparison, in the placebo/gemcitabine group there were no cerebrovascular accidents. The pooled incidence of cerebrovascular accident in the 3 monotherapy lung cancer studies was 0.6% in the erlotinib tablets arms and not higher than that observed in the control arms.

5.7 Microangiopathic Hemolytic Anemia With Thrombocytopenia

The pooled incidence of microangiopathic hemolytic anemia with thrombocytopenia in the 3 monotherapy lung cancer studies was 0% in the erlotinib tablets arms and 0.1% in the control arms. The incidence of microangiopathic hemolytic anemia with thrombocytopenia in the pancreatic cancer study was 1.4% in the erlotinib tablets plus gemcitabine arm and 0% in the control arm.

5.8 Ocular Disorders

Decreased tear production, abnormal eyelash growth, keratoconjunctivitis sicca or keratitis can occur with erlotinib tablets treatment and can lead to corneal perforation or ulceration [see Adverse Reactions (6.1) and (6.2)]. The pooled incidence of ocular disorders in the 3 monotherapy lung cancer studies was 17.8% in the erlotinib tablets arms and 4% in the control arms. The incidence of ocular disorders in the pancreatic cancer study was 12.8% in the erlotinib tablets plus gemcitabine arm and 11.4% in the control arm. Interrupt or discontinue erlotinib tablets therapy if patients present with acute or worsening ocular disorders such as eye pain [see Dosage and Administration (2.4)].

5.9 Hemorrhage In Patients Taking Warfarin

Severe and fatal hemorrhage associated with International Normalized Ratio (INR) elevations can occur when erlotinib tablets and warfarin are administered concurrently. Regularly monitor prothrombin time and INR during erlotinib tablets treatment in patients taking warfarin or other coumarin-derivative anticoagulants [see Adverse Reactions (6.1) and Drug Interactions (7)].

5.10 Embryo-Fetal Toxicity

Based on animal data and its mechanism of action, erlotinib tablets can cause fetal harm when administered to a pregnant woman. When given during organogenesis, erlotinib administration resulted in embryo-fetal lethality and abortion in rabbits at exposures approximately 3 times the exposure at the recommended human daily dose of 150 mg. Advise pregnant women of the potential risk to a fetus.Advise females of reproductive potential to use effective contraception during therapy and for one month after the last dose of erlotinib tablets. [see Use in Specific Populations (8.1) and (8.3), Clinical Pharmacology (12.1)].

6. Adverse Reactions

  • The following serious adverse reactions, which may include fatalities, are discussed in greater detail in other sections of the labeling:Interstitial Lung Disease (ILD) [see Warnings and Precautions (5.1)]Renal Failure [see Warnings and Precautions (5.2)]Hepatotoxicity with or without Hepatic Impairment [see Warnings and Precautions (5.3)]Gastrointestinal Perforation [see Warnings and Precautions (5.4)]Bullous and Exfoliative Skin Disorders [see Warnings and Precautions (5.5)]Cerebrovascular Accident [see Warnings and Precautions (5.6)]Microangiopathic Hemolytic Anemia with Thrombocytopenia [see Warnings and Precautions (5.7)]Ocular Disorders [see Warnings and Precautions (5.8)]Hemorrhage in Patients Taking Warfarin [see Warnings and Precautions (5.9)]

6.1 Clinical Trial 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 to rates in the clinical trials of another drug and may not reflect the rates observed in practice.Safety evaluation of erlotinib tablets is based on more than 1200 cancer patients who received erlotinib tablets as monotherapy, more than 300 patients who received erlotinib tablets 100 or 150 mg plus gemcitabine, and 1228 patients who received erlotinib tablets concurrently with other chemotherapies. The most common adverse reactions with erlotinib tablets are rash and diarrhea usually with onset during the first month of treatment. The incidences of rash and diarrhea from clinical studies of erlotinib tablets for the treatment of NSCLC and pancreatic cancer were 70% for rash and 42% for diarrhea.

Other

Non-Small Cell Lung Cancer

First-Line Treatment of Patients with EGFR MutationsThe most frequent (≥ 30%) adverse reactions in erlotinib tablets-treated patients were diarrhea, asthenia, rash, cough, dyspnea, and decreased appetite. In erlotinib tablets-treated patients the median time to onset of rash was 15 days and the median time to onset of diarrhea was 32 days.The most frequent Grade 3-4 adverse reactions in erlotinib tablets-treated patients were rash and diarrhea.Dose interruptions or reductions due to adverse reactions occurred in 37% of erlotinib tablets-treated patients, and 14.3% of erlotinib tablets-treated patients discontinued therapy due to adverse reactions. In erlotinib tablets-treated patients, the most frequently reported adverse reactions leading to dose modification were rash (13%), diarrhea (10%), and asthenia (3.6%).Common adverse reactions in Study 1, occurring in at least 10% of patients who received erlotinib tablets or chemotherapy and an increase in ≥ 5% in the erlotinib tablets-treated group, are graded by National Cancer Institute Common Toxicity Criteria for Adverse Events version 3.0 (NCI-CTCAE v3.0) Grade in Table 1. The median duration of erlotinib tablets treatment was 9.6 months in Study 1.Table 1: Adverse Reactions with an Incidence Rate ≥ 10% and an Increase of ≥ 5% in the Erlotinib Tablets Treated Group (Study 1)Erlotinib TabletsN = 84ChemotherapyPlatinum based chemotherapy (cisplatin or carboplatin with gemcitabine or docetaxel).N = 83Adverse ReactionAll Grades%Grades 3-4%All Grades%Grades 3-4%  Rash Rash as a composite term includes rash, acne, folliculitis, erythema, acneiform dermatitis, dermatitis, palmar-plantar erythrodysesthesia syndrome, exfoliative rash, erythematous rash, rash pruritic, skin toxicity, eczema, follicular rash, skin ulcer.851450  Diarrhea625211  Cough481400  Dyspnea458304  Dry skin21120  Back pain19250  Chest pain181120  Conjunctivitis18000  Mucosal inflammation18160  Pruritus16010  Paronychia14000  Arthralgia13161  Musculoskeletal pain11110

Hepatic Toxicity: One erlotinib tablets-treated patient experienced fatal hepatic failure and four additional patients experienced grade 3-4 liver test abnormalities in Study 1 [see Warnings and Precautions (5.3)].

Maintenance TreatmentAdverse reactions, regardless of causality, that occurred in at least 3% of patients treated with single-agent erlotinib tablets at 150 mg and at least 3% more often than in the placebo group in the randomized maintenance trial (Study 3) are summarized by NCI-CTCAE v3.0 Grade in Table 2. The most common adverse reactions in patients receiving single-agent erlotinib tablets 150 mg were rash and diarrhea. Grade 3-4 rash and diarrhea occurred in 9% and 2%, respectively, in erlotinib tablets-treated patients. Rash and diarrhea resulted in study discontinuation in 1% and 0.5% of erlotinib tablets-treated patients, respectively. Dose reduction or interruption for rash and diarrhea was needed in 5% and 3% of patients, respectively. In erlotinib tablets-treated patients the median time to onset of rash was 10 days, and the median time to onset of diarrhea was 15 days.Table 2: NSCLC Maintenance Study: Adverse Reactions Occurring with an Incidence Rate ≥ 10% and an Increase of ≥ 5% in the Single-Agent Erlotinib Tablets Group compared to the Placebo Group (Study 3)Adverse ReactionErlotinib TabletsN = 433PLACEBON = 445Any GradeGrade 3Grade 4Any GradeGrade 3Grade 4%%%%%%Rash Rash as a composite term includes: rash, acne, acneiform dermatitis, skin fissures, erythema, papular rash, rash generalized, pruritic rash, skin exfoliation, urticaria, dermatitis, eczema, exfoliative rash, exfoliative dermatitis, furuncle, macular rash, pustular rash, skin hyperpigmentation, skin reaction, skin ulcer6090900Diarrhea2020400Liver test abnormalities including ALT elevations were observed at Grade 2 or greater severity in 3% of erlotinib tablets-treated patients and 1% of placebo-treated patients. Grade 2 and above bilirubin elevations were observed in 5% of erlotinib tablets-treated patients and in < 1% in the placebo group [see Dosage and Administration (2.4) and Warnings and Precautions (5.3)].

Second/Third Line TreatmentAdverse reactions, regardless of causality, that occurred in at least 10% of patients treated with single-agent erlotinib tablets at 150 mg and at least 5% more often than in the placebo group in the randomized trial of patients with NSCLC are summarized by NCI-CTC v2.0 Grade in Table 3.The most common adverse reactions in this patient population were rash and diarrhea. Grade 3-4 rash and diarrhea occurred in 9% and 6%, respectively, in erlotinib tablets-treated patients. Rash and diarrhea each resulted in study discontinuation in 1% of erlotinib tablets-treated patients. Six percent and 1% of patients needed dose reduction for rash and diarrhea, respectively. The median time to onset of rash was 8 days, and the median time to onset of diarrhea was 12 days. Table 3: NSCLC 2nd/3rd Line Study: Adverse Reactions Occurring with an Incidence Rate ≥ 10% and an Increase of ≥ 5% in the Single-Agent Erlotinib Tablets Group Compared to the Placebo Group (Study 4) Adverse ReactionErlotinib Tablets150 mgN=485PlaceboN=242Any GradeGrade 3Grade 4Any GradeGrade 3Grade 4%%%%%%Rash Rash as a composite term includes: rash, palmar-plantar erythrodysesthesia syndrome, acne, skin disorder, pigmentation disorder, erythema, skin ulcer, exfoliative dermatitis, papular rash, skin desquamation.758<11700Diarrhea546<118<10Anorexia5281385<1Fatigue5214445164Dyspnea 411711351511Nausea33302420Infection24401520Stomatitis17<10300Pruritus13<10500Dry skin1200400Conjunctivitis12<102<10Keratoconjunctivitis sicca1200300Liver function test abnormalities [including elevated alanine aminotransferase (ALT), aspartate aminotransferase (AST) and bilirubin] were observed in patients receiving single-agent erlotinib tablets 150 mg. These elevations were mainly transient or associated with liver metastases. Grade 2 [> 2.5 – 5.0 × upper limit of normal (ULN)] ALT elevations occurred in 4% and < 1% of erlotinib tablets and placebo treated patients, respectively. Grade 3 (> 5.0 – 20.0 × ULN) elevations were not observed in erlotinib tablets-treated patients. Erlotinib tablets dosing should be interrupted or discontinued if changes in liver function are severe [see Dosage and Administration (2.4)].

Pancreatic Cancer - Erlotinib Tablets Administered Concurrently with GemcitabineThis was a randomized, double-blind placebo-controlled study of erlotinib tablets (150 mg or 100 mg daily) or placebo plus gemcitabine (1000 mg/m2 by intravenous infusion) in patients with locally advanced, unresectable or metastatic pancreatic cancer (Study 5). The safety population comprised 282 patients in the erlotinib group (259 in the 100 mg cohort and 23 in the 150 mg cohort) and 280 patients in the placebo group (256 in the 100 mg cohort and 24 in the 150 mg cohort).Adverse reactions that occurred in at least 10% of patients treated with erlotinib tablets 100 mg plus gemcitabine in the randomized trial of patients with pancreatic cancer (Study 5) were graded according to NCI-CTC v2.0 in Table 4.The most common adverse reactions in pancreatic cancer patients receiving erlotinib tablets 100 mg plus gemcitabine were fatigue, rash, nausea, anorexia and diarrhea. In the erlotinib tablets plus gemcitabine arm, Grade 3-4 rash and diarrhea were each reported in 5% of patients. The median time to onset of rash and diarrhea was 10 days and 15 days, respectively. Rash and diarrhea each resulted in dose reductions in 2% of patients, and resulted in study discontinuation in up to 1% of patients receiving erlotinib tablets plus gemcitabine. Severe adverse reactions (≥ Grade 3 NCI-CTC) in the erlotinib tablets plus gemcitabine group with incidences < 5% included syncope, arrhythmias, ileus, pancreatitis, hemolytic anemia including microangiopathic hemolytic anemia with thrombocytopenia, myocardial infarction/ischemia, cerebrovascular accidents including cerebral hemorrhage, and renal insufficiency [see Warnings and Precautions (5)].The 150 mg cohort was associated with a higher rate of certain class-specific adverse reactions including rash and required more frequent dose reduction or interruption.Table 4: Adverse Reactions Occurring with an Incidence Rate ≥ 10% and an Increase of ≥ 5% in Erlotinib Tablets -Treated Pancreatic Cancer Patients: 100 mg Cohort (Study 5)Adverse ReactionErlotinib Tablets + Gemcitabine1000 mg/m2 IVN=259Placebo + Gemcitabine1000 mg/m2 IVN=256Any GradeGrade 3Grade 4Any GradeGrade 3Grade 4%%%%%%Rash Rash as a composite term includes: rash, palmar-plantar erythrodysesthesia syndrome, pigmentation disorder, acneiform dermatitis, folliculitis, photosensitivity reaction, Stevens-Johnson syndrome, urticaria, erythematous rash, skin disorder, skin ulcer. 70503010Diarrhea485<13620Decreased weight392029<10Infection Infections as a composite term include infections with unspecified pathogens as well as bacterial (including chlamydial, rickettsial, mycobacterial and mycoplasmal), parasitic (including helminthic, ectoparasitic and protozoal), viral and fungal infectious disorders.391333092Pyrexia36303040Stomatitis22<101200Depression192014<10Cough16001100Headache15<101000Ten patients (4%) in the erlotinib tablets/gemcitabine group and three patients (1%) in the placebo/gemcitabine group developed deep venous thrombosis. The overall incidence of grade 3 or 4 thrombotic events, including deep venous thrombosis was 11% for erlotinib tablets plus gemcitabine and 9% for placebo plus gemcitabine.The incidences of liver test abnormalities (≥ Grade 2) in Study 5 are provided in Table 5 [see Dosage and Administration (2.4) and Warnings and Precautions (5.3)].Table 5: Liver Test Abnormalities in Pancreatic Cancer Patients: 100 mg Cohort (Study 5)Erlotinib Tablets + Gemcitabine1000 mg/m2 IVN=259Placebo + Gemcitabine1000 mg/m2 IVN=256Grade 2Grade 3Grade 4Grade 2Grade 3Grade 4Bilirubin17%10%<1%11%10%3%ALT31%13%<1%22%9%0%AST24%10%<1%19%9%0%

NSCLC and Pancreatic Indications: Selected Low Frequency Adverse Reactions

Gastrointestinal DisordersCases of gastrointestinal bleeding (including fatalities) have been reported, some associated with concomitant warfarin or NSAID administration [see Warnings and Precautions (5.9) and Drug Interactions (7)]. These adverse reactions were reported as peptic ulcer bleeding (gastritis, gastroduodenal ulcers), hematemesis, hematochezia, melena and hemorrhage from possible colitis.

CYP3A4 InhibitorsCo-administration of erlotinib tablets with a strong CYP3A4 inhibitor or a combined CYP3A4 and CYP1A2 inhibitor increased erlotinib exposure. Erlotinib is metabolized primarily by CYP3A4 and to a lesser extent by CYP1A2. Increased erlotinib exposure may increase the risk of exposure-related toxicity [see Clinical Pharmacology (12.3)].Avoid co-administering erlotinib tablets with strong CYP3A4 inhibitors (e.g., boceprevir, clarithromycin, conivaptan, indinavir, itraconazole, ketoconazole, lopinavir/ritonavir, nefazodone, nelfinavir, posaconazole, ritonavir, saquinavir, telithromycin, voriconazole, grapefruit or grapefruit juice) or a combined CYP3A4 and CYP1A2 inhibitor (e.g., ciprofloxacin). Reduce the erlotinib tablets dosage when co-administering with a strong CYP3A4 inhibitor or a combined CYP3A4 and CYP1A2 inhibitor if co-administration is unavoidable [see Dosage and Administration (2.4)].

CYP3A4 InducersPre-treatment with a CYP3A4 inducer prior to erlotinib tablets decreased erlotinib exposure [see Clinical Pharmacology (12.3)]. Increase the erlotinib tablets dosage if co-administration with CYP3A4 inducers (e.g., carbamazepine, phenytoin, rifampin, rifabutin, rifapentine, phenobarbital and St. John's wort) is unavoidable [see Dosage and Administration (2.4)].

CYP1A2 Inducers and Cigarette SmokingCigarette smoking decreased erlotinib exposure. Avoid smoking tobacco (CYP1A2 inducer) and avoid concomitant use of erlotinib tablets with moderate CYP1A2 inducers (e.g., teriflunomide, rifampin, or phenytoin). Increase the erlotinib tablets dosage in patients that smoke tobacco or when co-administration with moderate CYP1A2 inducers is unavoidable [see Dosage and Administration (2.4) and Clinical Pharmacology (12.3)].

Drugs the Increase Gastric pHCo-administration of erlotinib tablets with proton pump inhibitors (e.g., omeprazole) and H-2 receptor antagonists (e.g., ranitidine) decreased erlotinib exposure [see Clinical Pharmacology (12.3)]. For proton pump inhibitors, avoid concomitant use if possible. For H-2 receptor antagonists and antacids, modify the dosing schedule [see Dosage and Administration (2.4)]. Increasing the dose of erlotinib tablets when co-administered with gastric PH elevating agents is not likely to compensate for the loss of exposure.

AnticoagulantsInteraction with coumarin-derived anticoagulants, including warfarin, leading to increased International Normalized Ratio (INR) and bleeding adverse reactions, which in some cases were fatal, have been reported in patients receiving erlotinib tablets. Regularly monitor prothrombin time or INR in patients taking coumarin-derived anticoagulants. Dose modifications of erlotinib tablets are not recommended [see Warnings and Precautions (5.9) and Adverse Reactions (6.1)].

Risk SummaryBased on animal data and its mechanism of action, erlotinib tablets can cause fetal harm when administered to a pregnant woman. Limited available data on use of erlotinib tablets in pregnant women are not sufficient to inform a risk of major birth defects or miscarriage. When given during organogenesis, erlotinib administration resulted in embryo-fetal lethality and abortion in rabbits at exposures approximately 3 times the exposure at the recommended human daily dose of 150 mg. Advise pregnant women of the potential risk to a fetus.In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively.

Data

Animal DataErlotinib has been shown to cause maternal toxicity resulting in embryo-fetal lethality and abortion in rabbits when given during the period of organogenesis at doses that result in plasma drug concentrations approximately 3 times those achieved at the recommended dose in humans (AUCs at 150 mg daily dose). During the same period, there was no increase in the incidence of embryo-fetal lethality or abortion in rabbits or rats at doses resulting in exposures approximately equal to those in humans at the recommended daily dose. In an independent fertility study female rats treated with 30 mg/m2/day or 60 mg/m2/day (0.3 or 0.7 times the recommended daily dose, on a mg/m2 basis) of erlotinib had an increase in early resorptions that resulted in a decrease in the number of live fetuses.No teratogenic effects were observed in rabbits or rats dosed with erlotinib during organogenesis at doses up to 600 mg/m2/day in the rabbit (3 times the plasma drug concentration seen in humans at 150 mg/day) and up to 60 mg/m2/day in the rat (0.7 times the recommended dose of 150 mg/day on a mg/m2 basis).

Risk SummaryThere are no data on the presence of erlotinib in human milk, or the effects of erlotinib on the breastfed infant or on milk production. Because of the potential for serious adverse reactions in breastfed infants from erlotinib tablets, including interstitial lung disease, hepatotoxicity, bullous and exfoliative skin disorders, microangiopathic hemolytic anemia with thrombocytopenia, ocular disorders, and diarrhea. Advise a lactating woman not to breastfeed during treatment with erlotinib tablets and for 2 weeks after the final dose.

Contraception

FemalesErlotinib tablets can cause fetal harm when administered to a pregnant woman [see Use in Specific Populations (8.1)]. Advise females of reproductive potential to use effective contraception during treatment with erlotinib tablets and for one month after the last dose of erlotinib tablets.

AbsorptionErlotinib is about 60% absorbed after oral administration. Peak plasma levels occur 4 hours after dosing.

Effect of FoodFood increased the bioavailability of erlotinib to approximately 100%.

Distribution:Erlotinib is 93% protein bound to plasma albumin and alpha-1 acid glycoprotein (AAG).Erlotinib has an apparent volume of distribution of 232 liters.

Elimination Erlotinib is eliminated with a median half-life of 36.2 hours in patients receiving the single-agent erlotinib tablets 2nd/3rd line regimen. Time to reach steady state plasma concentration would therefore be 7-8 days.

MetabolismErlotinib is metabolized primarily by CYP3A4 and to a lesser extent by CYP1A2, and the extrahepatic isoform CYP1A1, in vitro.

ExcretionFollowing a 100 mg oral dose, 91% of the dose was recovered: 83% in feces (1% of the dose as intact parent) and 8% in urine (0.3% of the dose as intact parent).

Specific PopulationsNeither age, body weight, nor gender had a clinically significant effect on the systemic exposure of erlotinib in NSCLC patients receiving single-agent erlotinib tablets for 2nd/3rd line treatment or for maintenance treatment, and in pancreatic cancer patients who received erlotinib plus gemcitabine. The pharmacokinetics of erlotinib tablets in patients with compromised renal function is unknown.

Patients with Hepatic ImpairmentIn vitro and in vivo evidence suggest that erlotinib is cleared primarily by the liver. However, erlotinib exposure was similar in patients with moderately impaired hepatic function (Child-Pugh B) compared with patients with adequate hepatic function including patients with primary liver cancer or hepatic metastases.

Patients That Smoke Tobacco Cigarettes In a single-dose pharmacokinetics trial in healthy volunteers, cigarette smoking (moderate CYP1A2 inducer) increased erlotinib clearance and decreased erlotinib AUC0-inf by 64% (95% CI, 46-76%) in current smokers compared with former/never smokers. In a NSCLC trial, current smokers achieved erlotinib steady-state trough plasma concentrations which were approximately 2-fold less than the former smokers or patients who had never smoked. This effect was accompanied by a 24% increase in apparent erlotinib plasma clearance. In another study which was conducted in NSCLC patients who were current smokers, pharmacokinetic analyses at steady-state indicated a dose-proportional increase in erlotinib exposure when the erlotinib tablets dose was increased from 150 mg to 300 mg. [see Dosage and Administration (2.4), Drug Interactions (7) and Patient Counseling Information (17)].

Drug Interaction StudiesCo-administration of gemcitabine had no effect on erlotinib plasma clearance.

CYP3A4 InhibitorsCo-administration with a strong CYP3A4 inhibitor, ketoconazole, increased erlotinib AUC by 67%. Co-administration with a combined CYP3A4 and CYP1A2 inhibitor, ciprofloxacin, increased erlotinib exposure [AUC] by 39%, and increased erlotinib maximum concentration [Cmax] by 17%. [see Dose Modifications (2.4), Drug Interactions (7)].

CYP3A4 InducersPre-treatment with the CYP3A4 inducer rifampicin, for 7-11 days prior to erlotinib tablets, decreased erlotinib AUC by 58% to 80% [see Dose Modifications (2.4), Drug Interactions (7)].

CYP1A2 Inducers or Smoking TobaccoSee Specific Populations Section [see Dose Modifications (2.4), Drug Interactions (7)].

Drugs that Increase Gastric pHErlotinib solubility is pH dependent and decreases as pH increases. When a proton pump inhibitor (omeprazole) was co-administered with erlotinib tablets the erlotinib exposure [AUC] was decreased by 46% and the erlotinib maximum concentration [Cmax] was decreased by 61%. When erlotinib tablets were administered 2 hours following a 300 mg dose of an H-2 receptor antagonist (ranitidine), the erlotinib AUC was reduced by 33% and the erlotinib Cmax was reduced by 54%. When erlotinib tablets were administered with ranitidine 150 mg twice daily (at least 10 h after the previous ranitidine evening dose and 2 h before the ranitidine morning dose), the erlotinib AUC was decreased by 15% and the erlotinib Cmax was decreased by 17% [see Dose Modifications (2.4), Drug Interactions (7)].

Study 1The safety and efficacy of erlotinib tablets as monotherapy for the first-line treatment of patients with metastatic NSCLC containing EGFR exon 19 deletions or exon 21 (L858R) substitution mutations was demonstrated in Study 1, a randomized, open-label, clinical trial conducted in Europe. One hundred seventy-four (174) White patients were randomized 1:1 to receive erlotinib 150 mg once daily until disease progression (n=86) or four cycles of a standard platinum-based doublet chemotherapy (n=88); standard chemotherapy regimens were cisplatin plus gemcitabine, cisplatin plus docetaxel, carboplatin plus gemcitabine, and carboplatin plus docetaxel. The main efficacy outcome measure was progression-free survival (PFS) as assessed by the investigator. Randomization was stratified by EGFR mutation (exon 19 deletion or exon 21 (L858R) substitution) and Eastern Cooperative Oncology Group Performance Status (ECOG PS) (0 vs. 1 vs. 2). EGFR mutation status for screening and enrollment of patients was determined by a clinical trials assay (CTA). Tumor samples from 134 patients (69 patients from the erlotinib arm and 65 patients from the chemotherapy arm) were tested retrospectively by the FDA-approved companion diagnostic, the cobas® EGFR Mutation Test.Baseline demographics of the overall study population were: female (72%), White (99%), age ≥ 65 years (51%), ECOG PS 1 (53%), with ECOG PS 0 (33%), and ECOG PS 2 (14%), current smoker (11%), past-smoker (20%), and never smoker (69%). The disease characteristics were 93% Stage IV and 7% Stage IIIb with pleural effusion as classified by the American Joint Commission on Cancer (AJCC, 6th edition), 93% adenocarcinoma, 66% exon 19 mutation deletions and 34% exon 21 (L858R) point mutation by a CTA.A statistically significant improvement in investigator-determined PFS (based on RECIST 1.0 or clinical progression) was demonstrated for patients randomized to erlotinib compared to those randomized chemotherapy (see Table 6 and Figure 1). Similar results for PFS (based on RECIST 1.0) were observed for the subgroup evaluated by an independent-review committee (approximately 75% of patients evaluated in Study 1) and in the subgroup of 134 patients (77% of Study 1 population) with EGFR mutations confirmed by the cobas® EGFR Mutation Test.A protocol-specified analysis of overall survival (OS) conducted at the time of the final analysis of PFS showed no statistically significant difference between the erlotinib tablets and chemotherapy arms. At the time of the data cut-off, 84% of patients in the chemotherapy arm had received at least one subsequent treatment, of whom 97% received an EGFR-tyrosine kinase inhibitor. In the erlotinib tablets arm, 66% of patients had received at least one subsequent treatment.Table 6: Efficacy Results (Study 1)Erlotinib(N = 86)Chemotherapy(N = 88)Progression-Free SurvivalNumber of Progressions or Deaths71 (83%)63 (72%)Median PFS in Months (95% CI)10.4 (8.7, 12.9)5.2 (4.6, 6.0)Hazard Ratio (95% CI) Unstratified Cox regression model0.34 (0.23, 0.49)p-value (unstratified log-rank test)<0.001Overall SurvivalNumber of Deaths (%)55 (64%)54 (61%)Median OS in Months (95% CI)22.9 (17.0, 26.8)19.5 (17.3, 28.4)Hazard Ratio (95% CI)0.93 (0.64, 1.35)Objective ResponseObjective Response Rate (95% CI)65% (54.1%, 75.1%)16% (9.0%, 25.3%)Figure 1: Kaplan-Meier Curves of Investigator-Assessed PFS in Study 1In exploratory subgroup analyses based on EGFR mutation subtype, the hazard ratio (HR) for PFS was 0.27 (95% CI 0.17 to 0.43) in patients with exon 19 deletions and 0.52 (95% CI 0.29 to 0.95) in patients with exon 21 (L858R) substitution. The HR for OS was 0.94 (95% CI 0.57 to 1.54) in the exon 19 deletion subgroup and 0.99 (95% CI 0.56 to 1.76) in the exon 21 (L858R) substitution subgroup.

Study 3 The efficacy and safety of erlotinib tablets as maintenance treatment of NSCLC were demonstrated in Study 3, a randomized, double-blind, placebo-controlled trial conducted in 26 countries, in 889 patients with metastatic NSCLC whose disease did not progress during first-line platinum-based chemotherapy. Patients were randomized 1:1 to receive erlotinib tablets 150 mg or placebo orally once daily (438 erlotinib tablets, 451 placebo) until disease progression or unacceptable toxicity. The primary objective of the study was to determine if the administration of erlotinib tablets after standard platinum-based chemotherapy in the treatment of NSCLC resulted in improved progression-free survival (PFS) when compared with placebo, in all patients or in patients with EGFR immunohistochemistry (IHC) positive tumors.Baseline demographics of the overall study population were as follows: male (74%), age < 65 years (66%), ECOG PS 1 (69%), ECOG PS 0 (31%), white (84%), Asian (15%), current smoker (55%), past-smoker (27%), and never smoker (17%). Disease characteristics were as follows: Stage IV (75%), Stage IIIb with effusion (25%) as classified by AJCC (6th edition) with histologic subtypes of adenocarcinoma including bronchioalveolar (45%), squamous (40%) and large cell (5%); and EGFR IHC positive (70%), negative (14%), indeterminate (4%), and missing (12%).Table 7: Efficacy Results (Study 3): (ITT Population)Patients with PD prior to randomization were excluded from PFS and TTP analysis.Efficacy ParameterErlotinib Tablets(N = 438)Placebo(N = 451)Progression-Free Survival (PFS) based on investigator assessmentNumber of Progression or Deaths (%)349 (80%)400 (89%)Median PFS in Months (95% CI)2.8 (2.8, 3.1)2.6 (1.9, 2.7)Hazard Ratio (95% CI) Univariate Cox regression model.0.71 (0.62, 0.82)p-value (stratified log-rank test) ,Unstratified log-rank test. p < 0.0001Overall Survival (OS)Number of Deaths298 (68%)350 (78%)Median OS in Months (95% CI)12.0 (10.6, 13.9)11.0 (9.9, 12.1)Hazard Ratio (95% CI) 0.81 (0.70, 0.95)p-value (stratified log-rank test) 0.0088Figure 2 depicts the Kaplan-Meier Curves for Overall Survival (ITT Population).Figure 2: Kaplan - Meier Curves for Overall Survival of Patients by Treatment Group in Study 3Note: HR is from a univariate Cox regression model.

Study 4 The efficacy and safety of single-agent erlotinib tablets was assessed in Study 4, a randomized, double blind, placebo-controlled trial in 731 patients with locally advanced or metastatic NSCLC after failure of at least one chemotherapy regimen. Patients were randomized 2:1 to receive erlotinib tablets 150 mg or placebo (488 erlotinib tablets, 243 placebo) orally once daily until disease progression or unacceptable toxicity. Efficacy outcome measures included overall survival, response rate, and progression-free survival (PFS). Duration of response was also examined. The primary endpoint was survival. The study was conducted in 17 countries.Baseline demographics of the overall study population were as follows: male (65%), White (78%), Asian (12%), Black (4%), age < 65 years (62%), ECOG PS 1 (53%), ECOG PS 0 (13%), ECOG PS 2 (25%), ECOG PS 3 (9%), current or ex-smoker (75%), never smoker (20%), and exposure to prior platinum therapy (93%). Tumor characteristics were as follows: adenocarcinoma (50%), squamous (30%), undifferentiated large cell (9%), and mixed non-small cell (2%).The results of the study are shown in Table 8.Table 8: Efficacy Results (Study 4)Efficacy ParameterErlotinib Tablets(N = 488)Placebo(N = 243)Overall Survival (OS)  Number of Deaths378 (77%)209 (86%)  Median OS in Months (95% CI)6.7 (5.5, 7.8)4.7 (4.1, 6.3)  Hazard Ratio (95% CI) Cox regression model with the following covariates: ECOG performance status, number of prior regimens, prior platinum, best response to prior chemotherapy.0.73 (0.61, 0.86)  p-value (stratified log-rank test) Two-sided log-rank test stratified by ECOG performance status, number of prior regimens, prior platinum, best response to prior chemotherapy p < 0.001Progression-Free Survival (PFS)  Number of Progression or Deaths (%)402 (82%)211 (87%)  Median PFS in Months (95% CI)2.3 (1.9, 3.3)1.8 (1.8, 1.9)    Hazard Ratio (95% CI)0.59 (0.50, 0.70)Objective Response  Objective Response Rate (95% CI)8.9% (6.4, 12.0)0.9% (0.1, 3.4)Figure 3 depicts the Kaplan-Meier curves for overall survival.Figure 3: Kaplan-Meier Curves for Overall Survival of Patients by Treatment Group in Study 4

  • Skin rash, bullous and exfoliative skin disordersAdvise patients that skin reactions can occur or worsen on sun-exposed areas while taking erlotinib tablets, and proactive intervention may include alcohol-free emollient cream and use of sunscreen or avoidance of sun exposure. Advise patients that hyperpigmentation or dry skin, with or without digital skin fissures, have been reported and in the majority of cases were associated with rash [see Adverse Reactions (6.1)].Advise patients that erlotinib tablets can increase the risk of bullous and exfoliative skin disorders and to seek immediately medical attention for severe skin reactions [see Warnings and Precautions (5.5)].

DiarrheaAdvise patients that diarrhea can usually be managed with loperamide and to contact their healthcare provider for severe or persistent diarrhea [see Adverse Reactions (6.1)].

Interstitial lung diseaseAdvise patients of the risk of severe or fatal ILD, including pneumonitis. Advise patients to contact their healthcare provider immediately to report new of worsening unexplained shortness of breath or coughing [see Dosage and Administration (2.4) and Warnings and Precautions (5.1)].

Renal failureAdvise patients of the risk of developing renal failure. Inform patients of the need for the healthcare provider to monitor kidney function and electrolytes [see Warnings and Precautions (5.2)].

HepatotoxicityAdvise patients to immediately report signs or symptoms of hepatotoxicity [see Warnings and Precautions (5.3)].

Gastrointestinal perforationsAdvise patients that erlotinib tablets can increase the risk of gastrointestinal perforation or fistula and to seek immediate medical attention for severe abdominal pain [see Dosage and Administration (2.4) and Warnings and Precautions (5.4)].

Cerebrovascular accidentAdvise patients of the risk of cerebrovascular accident and see immediate medical attention [see Dosage and Administration (2.4) and Warnings and Precautions (5.6)].

Ocular disordersAdvise patients promptly to contact their healthcare provider if they develop eye signs or symptoms, lacrimation, light sensitivity, blurred vision, eye pain, red eye, or changes in vision [see Dosage and Administration (2.4) and Warnings and Precautions (5.8)].

Hemorrhage in patients taking warfarinAdvise patients who are receiving warfarin of the need to monitor INR or other coumarin-derivative anticoagulants [see Warnings and Precautions (5.9) and Drug Interactions (7)].

Hair and nail disordersAdvise patients that hair and nail disorders, including hirsutism and brittle and loose nails, have been reported [see Adverse Reactions (6.1)].

  • Embryo-fetal toxicityAdvise pregnant women and females of reproductive potential of the potential risk to a fetus. Advise females of reproductive potential to inform their healthcare provider of a known or suspected pregnancy [see Warnings and Precautions (5.10), Use in Specific Populations (8.1)].Advise females of reproductive potential to use effective contraception during treatment with erlotinib tablets, and for 1 month after the last dose [see Use in Specific Populations (8.3)].

  • LactationAdvise women not to breastfeed during treatment with erlotinib tablets and for 2 weeks after the final dose [see Use in Specific Populations (8.2)].

  • SmokingAdvise patients to contact their health care provider for any changes in smoking status and that the dose of erlotinib tablets may need to be adjusted if they smoke [see Drug Interactions (7) and Clinical Pharmacology (12.3)]Advise patients to stop smoking [see Clinical Pharmacology (12.3)].

Manufactured by:Natco Pharma LimitedKothur-509228, IndiaDistributed by:Breckenridge Pharmaceutical, Inc.Berlin, CT 06037Revised: 06/2019

6.2 Post-Marketing Experience

The following adverse reactions have been identified during post approval use of erlotinib tablets. 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.Musculoskeletal and Connective Tissue Disorders: myopathy, including rhabdomyolysis, in combination with statin therapyEye Disorders: ocular inflammation including uveitis

8.4 Pediatric Use

The safety and effectiveness of erlotinib tablets in pediatric patients have not been established.In an open-label, multicenter trial, 25 pediatric patients (median age 14 years, range 3-20 years) with recurrent or refractory ependymoma were randomized (1:1) to erlotinib tablets or etoposide. Thirteen patients received erlotinib tablets at a dose of 85 mg/m2/day orally until disease progression, death, patient request, investigator decision to discontinue study drug, or intolerable toxicity. Four patients randomized to etoposide also received erlotinib tablets following disease progression. The trial was terminated prematurely for lack of efficacy; there were no objective responses observed in these 17 erlotinib tablets -treated patients.No new adverse events were identified in the pediatric population.Based on the population pharmacokinetics analysis conducted in 105 pediatric patients (2 to 21 years old) with cancer, the geometric mean estimates of CL/F/BSA (apparent clearance normalized to body surface area) were comparable across the three age groups: 2-6 years (n = 29), 7-16 years (n = 59), and 17-21 years (n = 17).

8.5 Geriatric Use

Of the 1297 subjects in clinical studies of erlotinib tablets for the treatment of NSCLC and pancreatic cancer 40% were 65 and older while 10% were 75 and older. No overall differences in safety or efficacy were observed between subjects 65 years and older and those younger than 65.

8.6 Hepatic Impairment

Hepatic failure and hepatorenal syndrome, including fatal cases, can occur with erlotinib tablets treatment in patients with normal hepatic function; the risk of hepatic toxicity is increased in patients with baseline hepatic impairment [see Warnings and Precautions (5.3), Adverse Reactions (6.1, 6.2), and Dosage and Administration]. Monitor patients with hepatic impairment (total bilirubin greater than upper limit of normal (ULN) or Child-Pugh A, B and C) during therapy with erlotinib tablets. Treatment with erlotinib tablets should be used with increased monitoring in patients with total bilirubin greater than 3 × ULN [see Warnings and Precautions (5.3), Adverse Reactions (6.1, 6.2), and Dosage and Administration (2.4)].

10. Overdosage

Withhold erlotinib tablets in patients with an overdose or suspected overdose and institute symptomatic treatment.

11. Description

Erlotinib, a kinase inhibitor, is a quinazolinamine with the chemical name N-(3-ethynylphenyl)-6,7-bis(2-methoxyethoxy)-4-quinazolinamine. Erlotinib tablets contains erlotinib as the hydrochloride salt that has the following structural formula:Erlotinib hydrochloride has the molecular formula C22H23N3O4∙HCl and a molecular weight of 429.90. The molecule has a pKa of 5.42 at 25°C. Erlotinib hydrochloride is very slightly soluble in water, slightly soluble in methanol and practically insoluble in acetonitrile, acetone, ethyl acetate and hexane.Aqueous solubility of erlotinib hydrochloride is dependent on pH with increased solubility at a pH of less than 5 due to protonation of the secondary amine. Over the pH range of 1.4 to 9.6, maximal solubility of approximately 0.4 mg/mL occurs at a pH of approximately 2.Erlotinib tablets for oral administration are available in three dosage strengths containing erlotinib hydrochloride (27.3 mg, 109.3 mg and 163.9 mg) equivalent to 25 mg, 100 mg and 150 mg erlotinib and the following inactive ingredients: hypromellose, lactose monohydrate, microcrystalline cellulose, PEG, sodium lauryl sulfate, sodium starch glycolate, sodium stearyl fumarate and titanium dioxide.

12.1 Mechanism Of Action

Epidermal growth factor receptor (EGFR) is expressed on the cell surface of both normal and cancer cells. In some tumor cells signaling through this receptor plays a role in tumor cell survival and proliferation irrespective of EGFR mutation status. Erlotinib reversibly inhibits the kinase activity of EGFR, preventing autophosphorylation of tyrosine residues associated with the receptor and thereby inhibiting further downstream signaling. Erlotinib binding affinity for EGFR exon 19 deletion or exon 21 (L858R) mutations is higher than its affinity for the wild type receptor. Erlotinib inhibition of other tyrosine kinase receptors has not been fully characterized.

13.1 Carcinogenesis, Mutagenesis, Impairment Of Fertility

Two-year carcinogenicity studies were conducted in mice and rats with erlotinib at oral doses of up to 60 mg/kg/day in mice, 5 mg/kg/day in female rats, and 10 mg/kg/day in male rats. The studies were negative for carcinogenic findings. Exposure in mice at the highest dose tested was approximately 10 times the exposure in humans at the erlotinib dose of 150 mg/day. The highest dose evaluated in male rats resulted in exposures that were twice those in humans and exposures at the highest tested dose in female rats were slightly lower than those in humans.Erlotinib did not cause genetic damage in a series of in vitro assays (bacterial mutation, human lymphocyte chromosome aberration and mammalian cell mutation) and in the in vivo mouse bone marrow micronucleus test.Erlotinib did not impair fertility in either male or female rats.

14.2 Nsclc - Lack Of Efficacy Of Erlotinib Tablets In Maintenance Treatment Of Patients Without Egfr Mutations

Lack of efficacy of erlotinib tablets for the maintenance treatment of patients with NSCLC without EGFR activating mutations was demonstrated in Study 2. Study 2 was a multicenter, placebo-controlled, randomized trial of 643 patients with advanced NSCLC without an EGFR exon 19 deletion or exon 21 L858R mutation who had not experienced disease progression after four cycles of platinum-based chemotherapy. Patients were randomized 1:1 to receive erlotinib tablets 150 mg or placebo orally once daily (322 erlotinib tablets, 321 placebo) until disease progression or unacceptable toxicity. Following progression on initial therapy, patients were eligible to enter an open-label phase. Baseline characteristics were as follows: median age 61 years (35% age ≥ 65 years), 75% male, 77% White, 21% Asian, 28% ECOG PS 0, 72% ECOG PS 1, 16% never smokers, 58% current smokers, 57% adenocarcinoma, 35% squamous cell carcinoma, 22% stage IIIB disease not amenable to combined modality treatment, and 78% stage IV disease. Fifty percent of patients randomized to erlotinib tablets entered the open-label phase and received chemotherapy, while 77% of patients randomized to placebo entered the open-label phase and received erlotinib tablets. The main efficacy outcome was overall survival (OS). Median OS was 9.7 months in the erlotinib tablets arm and 9.5 months in the placebo arm; the hazard ratio for OS was 1.02 (95% CI 0.85, 1.22). Median PFS was 3.0 months in the erlotinib tablets arm and 2.8 months in the placebo arm; the hazard ratio for PFS was 0.94 (95% CI 0.80, 1.11).

14.3 Nsclc – Maintenance Treatment Or Second/Third Line Treatment

Two randomized, double-blind, placebo-controlled trials, Studies 3 and 4, examined the efficacy and safety of erlotinib tablets administered to patients with metastatic NSCLC as maintenance therapy after initial treatment with chemotherapy (Study 3) or with disease progression following initial treatment with chemotherapy (Study 4). Determination of EGFR mutation status was not required for enrollment.

14.4 Nsclc – Lack Of Efficacy Of Erlotinib Tablets Administered Concurrently With Chemotherapy

Results from two, multicenter, placebo-controlled, randomized, trials in over 1000 patients conducted in first-line patients with locally advanced or metastatic NSCLC showed no clinical benefit with the concurrent administration of erlotinib tablets with platinum-based chemotherapy [carboplatin and paclitaxel (erlotinib tablets, N = 526) or gemcitabine and cisplatin (erlotinib tablets, N = 580)].

14.5 Pancreatic Cancer - Erlotinib Tablets Administered Concurrently With Gemcitabine

The efficacy and safety of erlotinib tablets in combination with gemcitabine as a first-line treatment was assessed in Study 5, a randomized, double-blind, placebo-controlled trial in 569 patients with locally advanced, unresectable or metastatic pancreatic cancer. Patients were randomized 1:1 to receive erlotinib tablets (100 mg or 150 mg) or placebo once daily on a continuous schedule plus gemcitabine by intravenous infusion (1000 mg/m2, Cycle 1 - Days 1, 8, 15, 22, 29, 36 and 43 of an 8 -week cycle; Cycle 2 and subsequent cycles - Days 1, 8 and 15 of a 4-week cycle [the approved dose and schedule for pancreatic cancer, see the gemcitabine package insert]). Erlotinib tablets or placebo was taken orally once daily until disease progression or unacceptable toxicity. The primary endpoint was survival. Secondary endpoints included response rate, and progression-free survival (PFS). Duration of response was also examined. The study was conducted in 18 countries. A total of 285 patients were randomized to receive gemcitabine plus erlotinib tablets (261 patients in the 100 mg cohort and 24 patients in the 150 mg cohort) and 284 patients were randomized to receive gemcitabine plus placebo (260 patients in the 100 mg cohort and 24 patients in the 150 mg cohort). Too few patients were treated in the 150 mg cohort to draw conclusions.In the 100 mg cohort, baseline demographics of the overall study population were as follows: male (52%), white (88%), Asian (7%), black (2%), age < 65 years (53%), ECOG PS 1 (51%), ECOG PS 0 (32%), and ECOG PS 2 (17%). There was a slightly larger proportion of females in the erlotinib tablets arm (51%) compared with the placebo arm (44%). The median time from initial diagnosis to randomization was approximately 1.0 month. The majority of the patients (76%) had distant metastases at baseline and 24% had locally advanced disease.The results of the study are shown in Table 9.Table 9: Efficacy Results: Erlotinib Tablets 100 mg Cohort (Study 5)Efficacy ParameterErlotinib Tablets + Gemcitabine(N = 261)Placebo + Gemcitabine(N = 260)Overall Survival (OS)Number of Deaths250254Median OS in Months (95% CI)6.5 (6.0, 7.4)6.0 (5.1, 6.7)Hazard Ratio (95% CI) Cox regression model with the following covariates: ECOG performance status and extent of disease.0.81 (0.68, 0.97)p-value (stratified log-rank test) Two-sided log-rank test stratified by ECOG performance status and extent of disease.0.028Progression-Free Survival (PFS)Number of Progression or Deaths (%)225232Median PFS in Months (95% CI)3.8 (3.6, 4.9)3.6 (3.3, 3.8)Hazard Ratio (95% CI)0.76 (0.64, 0.92)Objective ResponseObjective Response Rate (95% CI)8.6% (5.4, 12.9)7.9% (4.8, 12.0)Survival was evaluated in the intent-to-treat population. Figure 4 depicts the Kaplan-Meier curves for overall survival in the 100 mg cohort. The primary survival and PFS analyses were two-sided log-rank tests stratified by ECOG performance status and extent of disease.Figure 4: Kaplan - Meier Curves for Overall Survival: 100 mg Cohort in Study 5Note: HR is from Cox regression model with the following covariates: ECOG performance status and extent of disease. The p-value is from two-sided Log-Rank test stratified by ECOG performance status and extent of disease.

16. How Supplied/Storage And Handling

25 mg Tablets: Round, biconvex, white film-coated tablets debossed with "N 25" on one side and plain on the other side; supplied in:Bottles of 30: NDC 51991-890-33100 mg Tablets: Round, biconvex, white film-coated tablets debossed with "N 100" on one side and plain on the other side; supplied in:Bottles of 30: NDC 51991-891-33150 mg Tablets: Round, biconvex, white film-coated tablets debossed with "N 150" on one side and plain on the other side; supplied in:Bottles of 30: NDC 51991-892-33

Storage And Handling

Store at 25°C (77°F); excursions permitted to 15°C to 30°C (59°F to 86°F). See USP Controlled Room Temperature.

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