Alimta Side Effects Center

SIDE EFFECTS

The following adverse reactions are discussed in greater detail in other sections of the labeling:

• Myelosuppression [see WARNINGS AND PRECAUTIONS]
• Renal failure [see WARNINGS AND PRECAUTIONS]
• Bullous and exfoliative skin toxicity [see WARNINGS AND PRECAUTIONS]
• Interstitial pneumonitis [see WARNINGS AND PRECAUTIONS]
• Radiation recall [see WARNINGS AND PRECAUTIONS]

Clinical Trials Experience

Because clinical trials are conducted under widely varying conditions, adverse reactions rates cannot be directly compared to rates in other clinical trials and may not reflect the rates observed in clinical practice.

In clinical trials, the most common adverse reactions (incidence ≥20%) of ALIMTA, when administered as a single agent, are fatigue, nausea, and anorexia. The most common adverse reactions (incidence ≥20%) of ALIMTA, when administered in combination with cisplatin are vomiting, neutropenia, anemia, stomatitis/pharyngitis, thrombocytopenia, and constipation. The most common adverse reactions (incidence ≥20%) of ALIMTA, when administered in combination with pembrolizumab and platinum chemotherapy, are fatigue/asthenia, nausea, constipation, diarrhea, decreased appetite, rash, vomiting, cough, dyspnea, and pyrexia.

Non-Squamous NSCLC

First-line Treatment Of Metastatic Non-squamous NSCLC With Pembrolizumab And Platinum Chemotherapy

The safety of ALIMTA, in combination with pembrolizumab and investigator's choice of platinum (either carboplatin or cisplatin), was investigated in Study KEYNOTE-189, a multicenter, double-blind, randomized (2:1), active-controlled trial in patients with previously untreated, metastatic non-squamous NSCLC with no EGFR or ALK genomic tumor aberrations. A total of 607 patients received ALIMTA, pembrolizumab, and platinum every 3 weeks for 4 cycles followed by ALIMTA and pembrolizumab (n=405), or placebo, ALIMTA, and platinum every 3 weeks for 4 cycles followed by placebo and ALIMTA (n=202). Patients with autoimmune disease that required systemic therapy within 2 years of treatment; a medical condition that required immunosuppression; or who had received more than 30 Gy of thoracic radiation within the prior 26 weeks were ineligible [see Clinical Studies].

The median duration of exposure to ALIMTA was 7.2 months (range: 1 day to 1.7 years). Seventy-two percent of patients received carboplatin. The study population characteristics were: median age of 64 years (range: 34 to 84), 49% age 65 years or older, 59% male, 94% White and 3% Asian, and 18% with history of brain metastases at baseline.

ALIMTA was discontinued for adverse reactions in 23% of patients in the ALIMTA, pembrolizumab, and platinum arm. The most common adverse reactions resulting in discontinuation of ALIMTA in this arm were acute kidney injury (3%) and pneumonitis (2%). Adverse reactions leading to interruption of ALIMTA occurred in 49% of patients in the ALIMTA, pembrolizumab, and platinum arm. The most common adverse reactions or laboratory abnormalities leading to interruption of ALIMTA in this arm (≥2%) were neutropenia (12%), anemia (7%), asthenia (4%), pneumonia (4%), thrombocytopenia (4%), increased blood creatinine (3%), diarrhea (3%), and fatigue (3%).

Table 2 summarizes the adverse reactions that occurred in ≥20% of patients treated with ALIMTA, pembrolizumab, and platinum.

Table 2: Adverse Reactions Occurring in ≥20% of Patients in KEYNOTE-189

Adverse Reaction	ALIMTA Pembrolizumab Platinum Chemotherapy n=405		Placebo ALIMTA Platinum Chemotherapy n=202
	All Gradesa (%)	Grade 3-4 (%)	All Grades (%)	Grade 3-4 (%)
Gastrointestinal Disorders
Nausea	56	3.5	52	3.5
Constipation	35	1.0	32	0.5
Diarrhea	31	5	21	3.0
Vomiting	24	3.7	23	3.0
General Disorders and Administration Site Conditions
Fatigueb	56	12	58	6
Pyrexia	20	0.2	15	0
Metabolism and Nutrition Disorders
Decreased appetite	28	1.5	30	0.5
Skin and Subcutaneous Tissue Disorders
Rashc	25	2.0	17	2.5
Respiratory, Thoracic and Mediastinal Disorders
Cough	21	0	28	0
Dyspnea	21	3.7	26	5
a Graded per NCI CTCAE version 4.03. b Includes asthenia and fatigue. cIncludes genital rash, rash, rash generalized, rash macular, rash maculo-papular, rash papular, rash pruritic, and rash pustular.

Table 3 summarizes the laboratory abnormalities that worsened from baseline in at least 20% of patients treated with ALIMTA, pembrolizumab, and platinum.

Table 3: Laboratory Abnormalities Worsened from Baseline in ≥20% of Patients in KEYNOTE-189

Laboratory Testa	ALIMTA Pembrolizumab Platinum Chemotherapy		Placebo ALIMTA Platinum Chemotherapy
	All Gradesb %	Grades 3-4 %	All Grades %	Grades 3-4 %
Chemistry
Hyperglycemia	63	9	60	7
Increased ALT	47	3.8	42	2.6
Increased AST	47	2.8	40	1.0
Hypoalbuminemia	39	2.8	39	1.1
Increased creatinine	37	4.2	25	1.0
Hyponatremia	32	7	23	6
Hypophosphatemia	30	10	28	14
Increased alkaline phosphatase	26	1.8	29	2.1
Hypocalcemia	24	2.8	17	0.5
Hyperkalemia	24	2.8	19	3.1
Hypokalemia	21	5	20	5
Hematology
Anemia	85	17	81	18
Lymphopenia	64	22	64	25
Neutropenia	48	20	41	19
Thrombocytopenia	30	12	29	8
a Each test incidence is based on the number of patients who had both baseline and at least one on-study laboratory measurement available: ALIMTA/pembrolizumab/platinum chemotherapy (range: 381 to 401 patients) and placebo/ALIMTA/platinum chemotherapy (range: 184 to 197 patients). b Graded per NCI CTCAE version 4.03.

Initial Treatment In Combination With Cisplatin

The safety of ALIMTA was evaluated in Study JMDB, a randomized (1:1), open-label, multicenter trial conducted in chemotherapy-naive patients with locally advanced or metastatic NSCLC. Patients received either ALIMTA 500 mg/m² intravenously and cisplatin 75 mg/m² intravenously on Day 1 of each 21-day cycle (n=839) or gemcitabine 1250 mg/m² intravenously on Days 1 and 8 and cisplatin 75 mg/m² intravenously on Day 1 of each 21-day cycle (n=830). All patients were fully supplemented with folic acid and vitamin B12.

Study JMDB excluded patients with an Eastern Cooperative Oncology Group Performance Status (ECOG PS of 2 or greater), uncontrolled third-space fluid retention, inadequate bone marrow reserve and organ function, or a calculated creatinine clearance less than 45 mL/min. Patients unable to stop using aspirin or other non-steroidal anti-inflammatory drugs or unable to take folic acid, vitamin B12 or corticosteroids were also excluded from the study.

The data described below reflect exposure to ALIMTA plus cisplatin in 839 patients in Study JMDB. Median age was 61 years (range 26-83 years); 70% of patients were men; 78% were White, 16% were Asian, 2.9% were Hispanic or Latino, 2.1% were Black or African American, and <1% were other ethnicities; 36% had an ECOG PS 0. Patients received a median of 5 cycles of ALIMTA.

Table 4 provides the frequency and severity of adverse reactions that occurred in ≥5% of 839 patients receiving ALIMTA in combination with cisplatin in Study JMDB. Study JMDB was not designed to demonstrate a statistically significant reduction in adverse reaction rates for ALIMTA, as compared to the control arm, for any specified adverse reaction listed in Table 4.

Table 4: Adverse Reactions Occurring in ≥5% of Fully Vitamin-Supplemented Patients Receiving ALIMTA in Combination with Cisplatin Chemotherapy in Study JMDB

Adverse Reactiona	ALIMTA/ Cisplatin (N=839)		Gemcitabine/ Cisplatin (N=830)
	All Grades (%)	Grade 3-4 (%)	All Grades (%)	Grade 3-4 (%)
All adverse reactions	90	37	91	53
Laboratory
Hematologic
Anemia	33	6	46	10
Neutropenia	29	15	38	27
Thrombocytopenia	10	4	27	13
Renal
Elevated creatinine	10	1	7	1
Clinical
Constitutional symptoms
Fatigue	43	7	45	5
Gastrointestinal
Nausea	56	7	53	4
Vomiting	40	6	36	6
Anorexia	27	2	24	1
Constipation	21	1	20	0
Stomatitis/pharyngitis	14	1	12	0
Diarrhea	12	1	13	2
Dyspepsia/heartburn	5	0	6	0
Neurology
Sensory neuropathy	9	0	12	1
Taste disturbance	8	0	9	0
Dermatology/Skin
Alopecia	12	0	21	1
Rash/Desquamation	7	0	8	1
a NCI CTCAE version 2.0.

The following additional adverse reactions of ALIMTA were observed.

Incidence 1% To <5%

Body as a Whole - febrile neutropenia, infection, pyrexia

General Disorders - dehydration

Metabolism and Nutrition - increased AST, increased ALT

Renal -renal failure

Eye Disorder - conjunctivitis

Incidence <1%

Cardiovascular - arrhythmia

General Disorders - chest pain

Metabolism and Nutrition - increased GGT

Neurology - motor neuropathy

Maintenance Treatment Following First-line Non-ALIMTA Containing Platinum-Based Chemotherapy

In Study JMEN, the safety of ALIMTA was evaluated in a randomized (2:1), placebo-controlled, multicenter trial conducted in patients with non-progressive locally advanced or metastatic NSCLC following four cycles of a first-line, platinum-based chemotherapy regimen. Patients received either ALIMTA 500 mg/m² or matching placebo intravenously every 21 days until disease progression or unacceptable toxicity. Patients in both study arms were fully supplemented with folic acid and vitamin B12.

Study JMEN excluded patients with an ECOG PS of 2 or greater, uncontrolled third-space fluid retention, inadequate bone marrow reserve and organ function, or a calculated creatinine clearance less than 45 mL/min. Patients unable to stop using aspirin or other non-steroidal anti-inflammatory drugs or unable to take folic acid, vitamin B12 or corticosteroids were also excluded from the study.

The data described below reflect exposure to ALIMTA in 438 patients in Study JMEN. Median age was 61 years (range 26-83 years), 73% of patients were men; 65% were White, 31% were Asian, 2.9% were Hispanic or Latino, and <2% were other ethnicities; 39% had an ECOG PS 0. Patients received a median of 5 cycles of ALIMTA and a relative dose intensity of ALIMTA of 96%. Approximately half the patients (48%) completed at least six, 21-day cycles and 23% completed ten or more 21-day cycles of ALIMTA.

Table 5 provides the frequency and severity of adverse reactions reported in ≥5% of the 438 ALIMTA-treated patients in Study JMEN.

Table 5: Adverse Reactions Occurring in ≥5% of Patients Receiving ALIMTA in Study JMEN

Adverse Reactiona	ALIMTA (N=438)		Placebo (N=218)
	All Grades (%)	Grade 3-4 (%)	All Grades (%)	Grade 3-4 (%)
All adverse reactions	66	16	37	4
Laboratory
Hematologic
Anemia	15	3	6	1
Neutropenia	6	3	0	0
Hepatic
Increased ALT	10	0	4	0
Increased AST	8	0	4	0
Clinical
Constitutional symptoms
Fatigue	25	5	11	1
Gastrointestinal
Nausea	19	1	6	1
Anorexia	19	2	5	0
Vomiting	9	0	1	0
Mucositis/stomatitis	7	1	2	0
Diarrhea	5	1	3	0
Infection	5	2	2	0
Neurology
Sensory neuropathy	9	1	4	0
Dermatology/Skin
Rash/desquamation	10	0	3	0
a NCI CTCAE version 3.0.

The requirement for transfusions (9.5% versus 3.2%), primarily red blood cell transfusions, and for erythropoiesis stimulating agents (5.9% versus 1.8%) were higher in the ALIMTA arm compared to the placebo arm.

The following additional adverse reactions were observed in patients who received ALIMTA.

Incidence 1% To<5%

Dermatology/Skin - alopecia, pruritus/itching

Gastrointestinal - constipation

General Disorders - edema, fever

Hematologic - thrombocytopenia

Eye Disorder - ocular surface disease (including conjunctivitis), increased lacrimation

Incidence <1%

Cardiovascular - supraventricular arrhythmia

Dermatology/Skin - erythema multiforme

General Disorders - febrile neutropenia, allergic reaction/hypersensitivity

Neurology - motor neuropathy

Renal - renal failure

Maintenance Treatment Following First-line ALIMTA Plus Platinum Chemotherapy

The safety of ALIMTA was evaluated in PARAMOUNT, a randomized (2:1), placebo-controlled study conducted in patients with non-squamous NSCLC with non-progressive (stable or responding disease) locally advanced or metastatic NSCLC following four cycles of ALIMTA in combination with cisplatin as first-line therapy for NSCLC. Patients were randomized to receive ALIMTA 500 mg/m² or matching placebo intravenously on Day 1 of each 21-day cycle until disease progression or unacceptable toxicity. Patients in both study arms received folic acid and vitamin B12 supplementation.

PARAMOUNT excluded patients with an ECOG PS of 2 or greater, uncontrolled third-space fluid retention, inadequate bone marrow reserve and organ function, or a calculated creatinine clearance less than 45 mL/min. Patients unable to stop using aspirin or other non-steroidal anti-inflammatory drugs or unable to take folic acid, vitamin B12 or corticosteroids were also excluded from the study.

The data described below reflect exposure to ALIMTA in 333 patients in PARAMOUNT. Median age was 61 years (range 32 to 83 years); 58% of patients were men; 94% were White, 4.8% were Asian, and <1% were Black or African American; 36% had an ECOG PS 0. The median number of maintenance cycles was 4 for ALIMTA and placebo arms. Dose reductions for adverse reactions occurred in 3.3% of patients in the ALIMTA arm and 0.6% in the placebo arm. Dose delays for adverse reactions occurred in 22% of patients in the ALIMTA arm and 16% in the placebo arm.

Table 6 provides the frequency and severity of adverse reactions reported in ≥5% of the 333 ALIMTA-treated patients in PARAMOUNT.

Table 6: Adverse Reactions Occurring in ≥5% of Patients Receiving ALIMTA in PARAMOUNT

Adverse Reactiona	ALIMTA (N=333)		Placebo (N=167)
	All Grades (%)	Grade 3-4 (%)	All Grades (%)	Grades 3-4 (%)
All adverse reactions	53	17	34	4.8
Laboratory
Hematologic
Anemia	15	4.8	4.8	0.6
Neutropenia	9	3.9	0.6	0
Clinical
Constitutional symptoms
Fatigue	18	4.5	11	0.6
Gastrointestinal
Nausea	12	0.3	2.4	0
Vomiting	6	0	1.8	0
Mucositis/stomatitis	5	0.3	2.4	0
General disorders
Edema	5	0	3.6	0
a NCI CTCAE version 3.0.

The requirement for red blood cell (13% versus 4.8%) and platelet (1.5% versus 0.6%) transfusions, erythropoiesis stimulating agents (12% versus 7%), and granulocyte colony stimulating factors (6% versus 0%) were higher in the ALIMTA arm compared to the placebo arm.

The following additional Grade 3 or 4 adverse reactions were observed more frequently in the ALIMTA arm.

Incidence 1% To <5%

Blood/Bone Marrow - thrombocytopenia

General Disorders - febrile neutropenia

Incidence <1%

Cardiovascular - ventricular tachycardia, syncope

General Disorders - pain

Gastrointestinal - gastrointestinal obstruction

Neurologic - depression

Renal - renal failure

Vascular - pulmonary embolism

Treatment Of Recurrent Disease After Prior Chemotherapy

The safety of ALIMTA was evaluated in Study JMEI, a randomized (1:1), open-label, active-controlled trial conducted in patients who had progressed following platinum-based chemotherapy. Patients received ALIMTA 500 mg/m² intravenously or docetaxel 75 mg/m² intravenously on Day 1 of each 21-day cycle. All patients on the ALIMTA arm received folic acid and vitamin B12 supplementation.

Study JMEI excluded patients with an ECOG PS of 3 or greater, uncontrolled third-space fluid retention, inadequate bone marrow reserve and organ function, or a calculated creatinine clearance less than 45 mL/min. Patients unable to discontinue aspirin or other non-steroidal anti-inflammatory drugs or unable to take folic acid, vitamin B12 or corticosteroids were also excluded from the study.

The data described below reflect exposure to ALIMTA in 265 patients in Study JMEI. Median age was 58 years (range 22 to 87 years); 73% of patients were men; 70% were White, 24% were Asian, 2.6% were Black or African American, 1.8% were Hispanic or Latino, and <2% were other ethnicities; 19% had an ECOG PS 0.

Table 7 provides the frequency and severity of adverse reactions reported in ≥5% of the 265 ALIMTA-treated patients in Study JMEI. Study JMEI is not designed to demonstrate a statistically significant reduction in adverse reaction rates for ALIMTA, as compared to the control arm, for any specified adverse reaction listed in the Table 7 below.

Table 7: Adverse Reactions Occurring in ≥5% of Fully Supplemented Patients Receiving ALIMTA in Study JMEI

Adverse Reactiona	ALIMTA (N=265)		Docetaxel (N=276)
	All Grades (%)	Grades 3-4 (%)	All Grade (%)	Grades 3-4 (%)
Laboratory
Hematologic
Anemia	19	4	22	4
Neutropenia	11	5	45	40
Thrombocytopenia	8	2	1	0
Hepatic
Increased ALT	8	2	1	0
Increased AST	7	1	1	0
Clinical
Gastrointestinal
Nausea	31	3	17	2
Anorexia	22	2	24	3
Vomiting	16	2	12	1
Stomatitis/pharyngitis	15	1	17	1
Diarrhea	13	0	24	3
Constipation	6	0	4	0
Constitutional symptoms
Fatigue	34	5	36	5
Fever	8	0	8	0
Dermatology/Skin
Rash/desquamation	14	0	6	0
Pruritus	7	0	2	0
Alopecia	6	1	38	2
a NCI CTCAE version 2.0.

The following additional adverse reactions were observed in patients assigned to receive ALIMTA.

Incidence 1% To <5%

Body as a Whole - abdominal pain, allergic reaction/hypersensitivity, febrile neutropenia, infection

Dermatology/Skin - erythema multiforme

Neurology - motor neuropathy, sensory neuropathy

Incidence <1%

Cardiovascular - supraventricular arrhythmias

Renal - renal failure

Mesothelioma

The safety of ALIMTA was evaluated in Study JMCH, a randomized (1:1), single-blind study conducted in patients with MPM who had received no prior chemotherapy for MPM. Patients received ALIMTA 500 mg/m² intravenously in combination with cisplatin 75 mg/m² intravenously on Day 1 of each 21-day cycle or cisplatin 75 mg/m² intravenously on Day 1 of each 21-day cycle administered until disease progression or unacceptable toxicity. Safety was assessed in 226 patients who received at least one dose of ALIMTA in combination with cisplatin and 222 patients who received at least one dose of cisplatin alone. Among 226 patients who received ALIMTA in combination with cisplatin, 74% (n=168) received full supplementation with folic acid and vitamin B12 during study therapy, 14% (n=32) were never supplemented, and 12% (n=26) were partially supplemented.

Study JMCH excluded patients with Karnofsky Performance Scale (KPS) of less than 70, inadequate bone marrow reserve and organ function, or a calculated creatinine clearance less than 45 mL/min. Patients unable to stop using aspirin or other non-steroidal anti-inflammatory drugs were also excluded from the study.

The data described below reflect exposure to ALIMTA in 168 patients that were fully supplemented with folic acid and vitamin B12. Median age was 60 years (range 19 to 85 years); 82% were men; 92% were White, 5% were Hispanic or Latino, 3.0% were Asian, and <1% were other ethnicities; 54% had KPS of 90-100. The median number of treatment cycles administered was 6 in the ALIMTA/cisplatin fully supplemented group and 2 in the ALIMTA/cisplatin never supplemented group. Patients receiving ALIMTA in the fully supplemented group had a relative dose intensity of 93% of the protocol-specified ALIMTA dose intensity. The most common adverse reaction resulting in dose delay was neutropenia.

Table 8 provides the frequency and severity of adverse reactions ≥5% in the subgroup of ALIMTA-treated patients who were fully vitamin supplemented in Study JMCH. Study JMCH was not designed to demonstrate a statistically significant reduction in adverse reaction rates for ALIMTA, as compared to the control arm, for any specified adverse reaction listed in the table below.

Table 8: Adverse Reactions Occurring in ≥5% of Fully Supplemented Subgroup of Patients ReceivingALIMTA/Cisplatin in Study JMCH^a

Adverse Reactionb	ALIMTA/ cisplatin (N=168)		Cisplatin (N=163)
	All Grades (%)	Grade 3-4 (%)	All Grades (%)	Grade 3-4 (%)
Laboratory
Hematologic
Neutropenia	56	23	13	3
Anemia	26	4	10	0
Thrombocytopenia	23	5	9	0
Renal
Elevated creatinine	11	1	10	1
Decreased creatinine clearance	16	1	18	2
Clinical
Eye Disorder
Conjunctivitis	5	0	1	0
Gastrointestinal
Nausea	82	12	77	6
Vomiting	57	11	50	4
Stomatitis/pharyngitis	23	3	6	0
Anorexia	20	1	14	1
Diarrhea	17	4	8	0
Constipation	12	1	7	1
Dyspepsia	5	1	1	0
Constitutional Symptoms
Fatigue	48	10	42	9
Metabolism and Nutrition
Dehydration	7	4	1	1
Neurology
Sensory neuropathy	10	0	10	1
Taste disturbance	8	0	6	0
Dermatology/Skin
Rash	16	1	5	0
Alopecia	11	0	6	0
a In Study JMCH, 226 patients received at least one dose of ALIMTA in combination with cisplatin and 222 patients received at least one dose of cisplatin. Table 8 provides the ADRs for subgroup of patients treated with ALIMTA in combination with cisplatin (168 patients) or cisplatin alone (163 patients) who received full supplementation with folic acid and vitamin B12 during study therapy. b NCI CTCAE version 2.0.

The following additional adverse reactions were observed in patients receiving ALIMTA plus cisplatin:

Incidence 1% To <5%

Body as a Whole - febrile neutropenia, infection, pyrexia

Dermatology/Skin - urticaria

General Disorders - chest pain

Metabolism and Nutrition - increased AST, increased ALT, increased GGT

Renal - renal failure

Incidence <1%

Cardiovascular - arrhythmia

Neurology - motor neuropathy

Exploratory Subgroup Analyses Based On Vitamin Supplementation

Table 9 provides the results of exploratory analyses of the frequency and severity of NCI CTCAE Grade 3 or 4 adverse reactions reported in more ALIMTA-treated patients who did not receive vitamin supplementation (never supplemented) as compared with those who received vitamin supplementation with daily folic acid and vitamin B12 from the time of enrollment in Study JMCH (fully-supplemented).

Table 9: Exploratory Subgroup Analysis of Selected Grade 3/4 Adverse Reactions Occurring in Patients Receiving ALIMTA in Combination with Cisplatin with or without Full Vitamin Supplementation in Study JMCH^a

Grade 3-4 Adverse Reactions	Fully Supplemented Patients N=168 (%)	Never Supplemented Patients N=32 (%)
Neutropenia	23	38
Thrombocytopenia	5	9
Vomiting	11	31
Febrile neutropenia	1	9
Infection with Grade 3/4 neutropenia	0	6
Diarrhea	4	9
a NCI CTCAE version 2.0.

The following adverse reactions occurred more frequently in patients who were fully vitamin supplemented than in patients who were never supplemented:

• hypertension (11% versus 3%),
• chest pain (8% versus 6%),
• thrombosis/embolism (6% versus 3%).

Additional Experience Across Clinical Trials

• Sepsis, with or without neutropenia, including fatal cases: 1%
• Severe esophagitis, resulting in hospitalization: <1%

Postmarketing Experience

The following adverse reactions have been identified during post-approval use of ALIMTA. 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.

Blood and Lymphatic System - immune-mediated hemolytic anemia

Gastrointestinal - colitis, pancreatitis

General Disorders and Administration Site Conditions - edema

Injury, poisoning, and procedural complications - radiation recall
Respiratory - interstitial pneumonitis

Skin - Serious and fatal bullous skin conditions, Stevens-Johnson syndrome, and toxic epidermal necrolysis

DRUG INTERACTIONS

Effects Of Ibuprofen On Pemetrexed

Ibuprofen increases exposure (AUC) of pemetrexed [see CLINICAL PHARMACOLOGY]. In patients with creatinine clearance between 45 mL/min and 79 mL/min:

• Avoid administration of ibuprofen for 2 days before, the day of, and 2 days following administration of ALIMTA [see DOSAGE AND ADMINISTRATION].
• Monitor patients more frequently for myelosuppression, renal, and gastrointestinal toxicity, if concomitant administration of ibuprofen cannot be avoided.

Read the entire FDA prescribing information for Alimta (Pemetrexed)