PEMRYDI RTU Pemetrexed disodium 1000 mg/100mL Injection
🆔 Identity & classification
Where does this data come from?
🏷️ RxNorm drug class
This medicine belongs to the Folate Analog Metabolic Inhibitor class.
Where does this data come from?
🏭 Manufacturer & labeler
Where does this data come from?
🩺 Clinical
Pemetrexed injection is used in combination with other chemotherapy medications as a first treatment for a certain type of non-small cell lung cancer (NSCLC) that has spread to nearby tissues or to other parts of the body. Pemetrexed injection is also used alone to treat NSCLC as ongoing treatment in people who have already received certain chemotherapy medications and whose cancer has not worsened and in people who could not be treated successfully with other chemotherapy medications. Pemetrexed injection is also in combination with another chemotherapy medication as a first treatment for mal...
Read the full MedlinePlus article ↗- The folic acid and vitamin B12 aren't just a nice-to-have — they're a required part of your treatment. Without them, pemetrexed is much more likely to cause severe drops in your bl...
- Why do I have to take vitamins before and during my pemetrexed treatment?
- The ones that can't wait are signs of infection — fever, chills, or feeling suddenly very unwell — because your white blood cell count may be dangerously low. Also call right away...
- What side effects should I definitely call my doctor about right away?
Patient education
Supplement & herbal interactions
Where does this data come from?
Ask a licensed pharmacist directly — free, answered by our team.
🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
-
UNII ZT934N0X4W
A naturally occurring amino acid salt used as a reducing agent and antioxidant in medications. It helps prevent ingredient breakdown and may improve product stability during storage.
-
UNII QTT17582CB
A strong acid used to adjust and maintain the proper pH level in liquid medicines, ensuring stability and preventing breakdown of active ingredients.
-
UNII 3OWL53L36A
A natural sugar alcohol derived from seaweed or synthesized in the lab. It's used as a filler to add bulk, a sweetener in sugar-free formulas, and a disintegrant to help tablets break apart in the stomach.
-
UNII 451W47IQ8X
Sodium chloride is common table salt. It's used in medicines as a buffer to maintain proper pH, as a filler to add bulk, or to adjust the osmotic balance in liquid formulations.
-
UNII 55X04QC32I
A strong alkaline chemical used to adjust and maintain the pH balance of liquid medicines. It helps keep the medicine stable and ensures it stays effective during storage.
5 inactive ingredients listed in the exact product block matched to this NDC.
Where does this data come from?
ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
Why might an inactive ingredient be missing?
Can inactive ingredients matter?
💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per each | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data. | |
| Medicare drug plans payPart D · quarterly | No Part D plan price is available for this NDC in our data. | |
Where does this data come from?
🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Pemetrexed 1000 mg/100mL 63759-3050-01 | Shilpa | 1 vial | — | — | FDA listed | — |
| Pemrydi Rtu 1000 mg/100mLthis 70121-2462-01 | Amneal | 1 vial | — | — | FDA listed | — |
Where does this data come from?
⏳ Availability & generic status
The FDA lists approved generic versions of this medicine, but that does not always mean a pharmacy can get one today. Patent rules, launch agreements, supply and pricing can affect when generics actually arrive.
Why the date isn’t exact: Generic timing can change because patents may be challenged, settled, licensed, added, removed, or worked around with a narrower label — and FDA approval does not always mean a pharmacy can get the generic today.
🛈 What do these terms mean?
- Patent
- Legal protection listed in the Orange Book that may delay generic approval or launch. Issued by the U.S. Patent & Trademark Office.
- Substance patent
- Covers the active drug molecule itself — the hardest to design around. A generic generally can’t launch until it expires.
- Formulation (product) patent
- Covers a specific formulation or dosage form. A generic can sometimes work around it with a different formulation.
- Method-of-use patent
- A patent covering one specific approved use of the drug — not necessarily the whole molecule. A generic can sometimes launch with a “skinny label” that carves out the protected use and keeps the others.
- Skinny label
- A generic label that omits a still-patented use when the FDA allows it — letting a generic reach the market for the unprotected uses.
- Exclusivity
- FDA-granted marketing protection, separate from patents — e.g. 5-yr new chemical entity, 7-yr orphan drug, or a +6-month pediatric extension.
- Paragraph IV
- A generic applicant’s formal challenge to a listed patent. It can potentially lead to earlier generic entry, but often involves litigation or a settlement.
- RLD / RS
- Reference Listed Drug — the brand product the FDA uses as the reference for generic applications. Reference Standard — the product the FDA expects generics to compare against in bioequivalence testing.
- TE / AB rating
- FDA therapeutic-equivalence rating. An AB rating generally means the FDA considers a generic therapeutically equivalent to — and substitutable for — the brand.
- LOE (loss of exclusivity)
- The latest patent or exclusivity currently listed — the loss-of-exclusivity / latest-listed-protection date shown on this page. Paragraph-IV challenges and settlements can move the real date earlier; FDA approval and a manufacturer’s decision to market can move it later.
Built from the FDA Orange Book. The bars above are scaled to each protection’s expiry; the red LOE marker is the last one to lapse.
| Patent | Type | Use code | Expires |
|---|---|---|---|
| US 11147817 ↗ | Drug product | — | Mar 26, 2035 |
| US 11147817 ↗ | Drug product | — | Mar 26, 2035 |
| US 11147817 ↗ | Drug product | — | Mar 26, 2035 |
Is there a generic version of this drug?
The FDA approved a generic — why can’t I get it at my pharmacy yet?
Why do different websites show different generic release dates?
What does “FDA listed” mean?
What does a patent or protection date mean here?
What does “current Orange Book estimate” mean?
Can a generic come out before the last patent expires?
Can a generic come out after the listed dates?
What is the difference between patents and exclusivity?
Why are there multiple patent dates?
Where does this data come from?
📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 70121-2462-01 You're viewing this | 1 VIAL in 1 CARTON (70121-2462-1) / 100 mL in 1 VIAL | 2023-06-06 | Active |
🧭 About this NDC listing & data coverage
What data is (and isn’t) available for this NDC — tap to expand
| NDC identity (package / product / labeler codes) | ✓ Available |
| Labeler | ✓ Available |
| Product & package description | ✓ Available |
| Marketing category & status | ✓ Available |
| Active ingredient / dosage form / route | ✓ Available |
| FDA label (SPL via DailyMed) | ✓ Available |
| Package photos | ✓ Available |
| Inactive ingredients (structured) | ✓ Available |
| NADAC pharmacy acquisition price (CMS) | — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey. |
| Orange Book / therapeutic-equivalence data | ✓ Available |
| HCPCS J-code billing crosswalk | — Not published for this NDC Most self-administered / retail products have no J-code — that is normal. |
| Medicaid utilization (CMS SDUD) | — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold. |
Questions about this listing
Why is there no price listed?
Is the NDC printed on the package the same as the 11-digit billing NDC?
What do the three segments of this NDC mean?
Is this package still being marketed?
Who lists this product with the FDA?
Do I need a prescription for this product?
Where does this data come from?
📄 Full prescribing information FDA SPL
🎯 Indications and Usage ▾
1. INDICATIONS AND USAGE PEMRYDI RTU ® is a folate analog metabolic inhibitor indicated: in combination with pembrolizumab and platinum chemotherapy, for the initial treatment of patients with metastatic non-squamous non-small cell lung cancer (NSCLC), with no EGFR or ALK genomic tumor aberrations. ( 1.1 ) in combination with cisplatin for the initial treatment of patients with locally advanced or metastatic, non-squamous NSCLC.
( 1.1 ) as a single agent for the maintenance treatment of patients with locally advanced or metastatic, non-squamous NSCLC whose disease has not progressed after four cycles of platinum-based first-line chemotherapy. ( 1.1 ) as a single agent for the treatment of patients with recurrent, metastatic non-squamous, NSCLC after prior chemotherapy. ( 1.1 ) Limitations of Use: PEMRYDI RTU is not indicated for the treatment of patients with squamous cell, non-small cell lung cancer.
( 1.1 ) initial treatment, in combination with cisplatin, of patients with malignant pleural mesothelioma whose disease is unresectable or who are otherwise not candidates for curative surgery. ( 1.2 )
1.1Non-Squamous Non-Small Cell Lung Cancer (NSCLC) PEMRYDI RTU ® is indicated: in combination with pembrolizumab and platinum chemotherapy, for the initial treatment of patients with metastatic non-squamous non-small cell lung cancer (NSCLC), with no EGFR or ALK genomic tumor aberrations. in combination with cisplatin for the initial treatment of patients with locally advanced or metastatic, non-squamous NSCLC. as a single agent for the maintenance treatment of patients with locally advanced or metastatic, non-squamous NSCLC whose disease has not progressed after four cycles of platinum-based first-line chemotherapy. as a single agent for the treatment of patients with recurrent, metastatic non-squamous, NSCLC after prior chemotherapy.
Limitations of Use : PEMRYDI RTU is not indicated for the treatment of patients with squamous cell, non-small cell lung cancer [see Clinical Studies (14.1) ].
1.2Mesothelioma PEMRYDI RTU is indicated, in combination with cisplatin, for the initial treatment of patients with malignant pleural mesothelioma whose disease is unresectable or who are otherwise not candidates for curative surgery.
⏱️ Dosage and Administration ▾
2. DOSAGE AND ADMINISTRATION The recommended dose of PEMRYDI RTU administered with pembrolizumab and platinum chemotherapy in patients with a creatinine clearance (calculated by Cockcroft-Gault equation) of 45 mL/min or greater is 500 mg/m 2 as an intravenous infusion over 10 minutes, administered after pembrolizumab and prior to platinum chemotherapy, on Day 1 of each 21-day cycle. ( 2.1 ) The recommended dose of PEMRYDI RTU, administered as a single agent or with cisplatin, in patients with creatinine clearance of 45 mL/minute or greater is 500 mg/m 2 as an intravenous infusion over 10 minutes on Day 1 of each 21-day cycle.
( 2.1 , 2.2 ) Initiate folic acid 400 mcg to 1,000 mcg orally, once daily, beginning 7 days prior to the first dose of PEMRYDI RTU and continue until 21 days after the last dose of PEMRYDI RTU. ( 2.4 ) Administer vitamin B 12 , 1 mg intramuscularly, 1 week prior to the first dose of PEMRYDI RTU and every 3 cycles. ( 2.4 ) Administer dexamethasone 4 mg orally, twice daily the day before, the day of, and the day after PEMRYDI RTU administration.
( 2.4 )
2.1Recommended Dosage for Non-Squamous NSCLC The recommended dose of PEMRYDI RTU when administered with pembrolizumab and platinum chemotherapy for the initial treatment of metastatic non-squamous NSCLC in patients with a creatinine clearance (calculated by Cockcroft-Gault equation) of 45 mL/min or greater is 500 mg/m 2 as an intravenous infusion over 10 minutes administered after pembrolizumab and prior to carboplatin or cisplatin on Day 1 of each 21-day cycle for 4 cycles. Following completion of platinum-based therapy, treatment with PEMRYDI RTU with or without pembrolizumab is administered until disease progression or unacceptable toxicity.
Please refer to the full prescribing information for pembrolizumab and for carboplatin or cisplatin. The recommended dose of PEMRYDI RTU when administered with cisplatin for initial treatment of locally advanced or metastatic non-squamous NSCLC in patients with a creatinine clearance (calculated by Cockcroft-Gault equation) of 45 mL/min or greater is 500 mg/m 2 as an intravenous infusion over 10 minutes administered prior to cisplatin on Day 1 of each 21-day cycle for up to six cycles in the absence of disease progression or unacceptable toxicity.
The recommended dose of PEMRYDI RTU for maintenance treatment of non-squamous NSCLC in patients with a creatinine clearance (calculated by Cockcroft-Gault equation) of 45 mL/min or greater is 500 mg/m 2 as an intravenous infusion over 10 minutes on Day 1 of each 21-day cycle until disease progression or unacceptable toxicity after four cycles of platinum-based first-line chemotherapy. The recommended dose of PEMRYDI RTU for treatment of recurrent non-squamous NSCLC in patients with a creatinine clearance (calculated by Cockcroft-Gault equation) of 45 mL/min or greater is 500 mg/m 2 as an intravenous infusion over 10 minutes on Day 1 of each 21-day cycle until disease progression or unacceptable toxicity.
2.2Recommended Dosage for Mesothelioma The recommended dose of PEMRYDI RTU when administered with cisplatin in patients with a creatinine clearance (calculated by Cockcroft-Gault equation) of 45 mL/min or greater is 500 mg/m 2 as an intravenous infusion over 10 minutes on Day 1 of each 21-day cycle until disease progression or unacceptable toxicity.
2.3Renal Impairment PEMRYDI RTU dosing recommendations are provided for patients with a creatinine clearance (calculated by Cockcroft-Gault equation) of 45 mL/min or greater [see Dosage and Administration (2.1 , 2.2) ] . There is no recommended dose for patients whose creatinine clearance is less than 45 mL/min [see Use in Specific Populations (8.6) ] .
2.4Premedication and Concomitant Medications to Mitigate Toxicity Vitamin Supplementation Initiate folic acid 400 mcg to 1,000 mcg orally once daily, beginning 7 days before the first dose of PEMRYDI RTU and continuing until 21 days after the last dose of PEMRYDI RTU [see Warn…
💊 Dosage Forms and Strengths ▾
3. DOSAGE FORMS AND STRENGTHS Injection: PEMRYDI RTU is a sterile clear colorless to pale yellow to greenish yellow solution available as follows: 100 mg/10 mL (10 mg/mL) single-dose vial 500 mg/50 mL (10 mg/mL) single-dose vial 1,000 mg/100 mL (10 mg/mL) single-dose vial Injection: 100 mg/10 mL, 500 mg/50 mL, 1,000 mg/100 mL in single dose vials ( 3 )
⛔ Contraindications ▾
4. CONTRAINDICATIONS PEMRYDI RTU is contraindicated in patients with a history of severe hypersensitivity reaction to pemetrexed [see Adverse Reactions (6.1) ]. History of severe hypersensitivity reaction to pemetrexed. ( 4 )
⚠️ Warnings and Cautions ▾
5. WARNINGS AND PRECAUTIONS Myelosuppression: Can cause severe bone marrow suppression resulting in cytopenia and an increased risk of infection. Do not administer PEMRYDI RTU when the absolute neutrophil count is less than 1,500 cells/mm 3 and platelets are less than 100,000 cells/mm 3 .
Initiate supplementation with oral folic acid and intramuscular vitamin B 12 to reduce the severity of hematologic and gastrointestinal toxicity of PEMRYDI RTU. ( 2.4 , 5.1 ) Renal Failure: Can cause severe, and sometimes fatal, renal failure. Do not administer when creatinine clearance is less than 45 mL/min.
( 2.3 , 5.2 ) Bullous and Exfoliative Skin Toxicity: Permanently discontinue for severe and life-threatening bullous, blistering or exfoliating skin toxicity. ( 5.3 ) Interstitial Pneumonitis: Withhold for acute onset of new or progressive unexplained pulmonary symptoms. Permanently discontinue if pneumonitis is confirmed.
( 5.4 ) Radiation Recall: Can occur in patients who received radiation weeks to years previously; permanently discontinue for signs of radiation recall. ( 5.5 ) Embryo-Fetal Toxicity: Can cause fetal harm. Advise patients of the potential risk to a fetus and to use effective contraception.
( 5.7 , 8.1 , 8.3 )
5.1Myelosuppression and Increased Risk of Myelosuppression without Vitamin Supplementation Pemetrexed can cause severe myelosuppression resulting in a requirement for transfusions and which may lead to neutropenic infection. The risk of myelosuppression is increased in patients who do not receive vitamin supplementation. In Study JMCH, incidences of Grade 3-4 neutropenia (38% versus 23%), thrombocytopenia (9% versus 5%), febrile neutropenia (9% versus 0.6%), and neutropenic infection (6% versus 0) were higher in patients who received pemetrexed plus cisplatin without vitamin supplementation as compared to patients who were fully supplemented with folic acid and vitamin B 12 prior to and throughout pemetrexed plus cisplatin treatment.
Initiate supplementation with oral folic acid and intramuscular vitamin B 12 prior to the first dose of PEMRYDI RTU; continue vitamin supplementation during treatment and for 21 days after the last dose of PEMRYDI RTU to reduce the severity of hematologic and gastrointestinal toxicity of PEMRYDI RTU [see Dosage and Administration (2.4) ] . Obtain a complete blood count at the beginning of each cycle. Do not administer PEMRYDI RTU until the ANC is at least 1,500 cells/mm 3 and platelet count is at least 1,00,000 cells/mm 3 .
Permanently reduce PEMRYDI RTU in patients with an ANC of less than 500 cells/mm 3 or platelet count of less than 50,000 cells/mm 3 in previous cycles [see Dosage and Administration (2.6) ] . In Studies JMDB and JMCH, among patients who received vitamin supplementation, incidence of Grade 3-4 neutropenia was 15% and 23%, the incidence of Grade 3-4 anemia was 6% and 4%, and incidence of Grade 3-4 thrombocytopenia was 4% and 5%, respectively. In Study JMCH, 18% of patients in the pemetrexed arm required red blood cell transfusions compared to 7% of patients in the cisplatin arm [see Adverse Reactions (6.1) ].
In Studies JMEN, PARAMOUNT, and JMEI, where all patients received vitamin supplementation, incidence of Grade 3-4 neutropenia ranged from 3% to 5%, and incidence of Grade 3-4 anemia ranged from 3% to 5%.
5.2Renal Failure Pemetrexed can cause severe, and sometimes fatal, renal toxicity. The incidences of renal failure in clinical studies in which patients received pemetrexed with cisplatin were 2.1% in Study JMDB and 2.2% in Study JMCH. The incidence of renal failure in clinical studies in which patients received pemetrexed as a single agent ranged from 0.4% to 0.6% (Studies JMEN, PARAMOUNT, and JMEI [see Adverse Reactions (6.1) ] .
Determine creatinine clearance before each dose and periodically monitor renal function during treatment with PEMRYDI RTU. Withhold PEMRYDI RTU in patients with a creatinine clearance of less than 45 mL/minute [see Dosage and Admin…
🤒 Adverse Reactions ▾
6. ADVERSE REACTIONS The following adverse reactions are discussed in greater detail in other sections of the labeling: Myelosuppression [see Warnings and Precautions (5.1) ] Renal failure [see Warnings and Precautions (5.2) ] Bullous and exfoliative skin toxicity [see Warning and Precautions (5.3) ] Interstitial pneumonitis [see Warnings and Precautions (5.4) ] Radiation recall [see Warnings and Precautions (5.5) ] The most common adverse reactions (incidence ≥ 20%) of pemetrexed, when administered as a single agent are fatigue, nausea, and anorexia.
( 6.1 ) The most common adverse reactions (incidence ≥ 20%) of pemetrexed when administered with cisplatin are vomiting, neutropenia, anemia, stomatitis/pharyngitis, thrombocytopenia, and constipation. ( 6.1 ) The most common adverse reactions (incidence ≥ 20%) of pemetrexed when administered in combination with pembrolizumab and platinum chemotherapy are fatigue/asthenia, nausea, constipation, diarrhea, decreased appetite, rash, vomiting, cough, dyspnea, and pyrexia. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Amneal Pharmaceuticals LLC at 1-877-835-5472 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
6.1Clinical 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 pemetrexed, when administered as a single agent, are fatigue, nausea, and anorexia. The most common adverse reactions (incidence ≥ 20 %) of pemetrexed, when administered in combination with cisplatin are vomiting, neutropenia, anemia, stomatitis/pharyngitis, thrombocytopenia, and constipation.
The most common adverse reactions (incidence ≥ 20%) of pemetrexed, 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 pemetrexed, 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 pemetrexed, pembrolizumab, and platinum every 3 weeks for 4 cycles followed by pemetrexed and pembrolizumab (n=405), or placebo, pemetrexed, and platinum every 3 weeks for 4 cycles followed by placebo and pemetrexed (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 (14.1) ] .
The median duration of exposure to pemetrexed 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.
Pemetrexed was discontinued for adverse reactions in 23% of patients in the pemetrexed, pembrolizumab, and platinum arm. The most common adverse reactions resulting in discontinuation of pemetrexed in this arm were acute kidney injury (3%) and pneumonitis (2%). Adverse reactions leading to interruption of pemetrexed occurred in 49% of patients in the pemetrexed, pembrolizumab, and platinum arm.
The most common adverse reactions or laboratory abnormalities leading to interruption of pemetrexed in this arm (≥ 2%) were neutropenia (12%), anemia (7%), asthenia (4%), pneumoni…
🔄 Drug Interactions ▾
7. DRUG INTERACTIONS Effects of Ibuprofen on Pemetrexed Ibuprofen increases exposure (AUC) of pemetrexed [see Clinical Pharmacology ( 12.3 ) ] . 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 PEMRYDI RTU [see Dosage and Administration ( 2.5 ) ] .
Monitor patients more frequently for myelosuppression, renal, and gastrointestinal toxicity, if concomitant administration of ibuprofen cannot be avoided. Ibuprofen increased risk of PEMRYDI RTU toxicity in patients with mild to moderate renal impairment. Modify the ibuprofen dosage as recommended for patients with a creatinine clearance between 45 mL/min and 79 mL/min.
( 2.5 , 5.6 , 7 )
👥 Use in Specific Populations ▾
8. USE IN SPECIFIC POPULATIONS Lactation: Advise not to breastfeed. ( 8.2 )
8.1Pregnancy Risk Summary Based on findings from animal studies and its mechanism of action, pemetrexed can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology ( 12.1 ) ] . There are no available data on pemetrexed use in pregnant women. In animal reproduction studies, intravenous administration of pemetrexed to pregnant mice during the period of organogenesis was teratogenic, resulting in developmental delays and malformations at doses lower than the recommended human dose of 500 mg/m 2 [see Data ] .
Advise pregnant women of the potential risk to a fetus [see Use in Special Populations ( 8.3 ) ] . In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Data Animal Data Pemetrexed was teratogenic in mice.
Daily dosing of pemetrexed by intravenous injection to pregnant mice during the period of organogenesis increased the incidence of fetal malformations (cleft palate; protruding tongue; enlarged or misshaped kidney; and fused lumbar vertebra) at doses (based on BSA) 0.03 times the human dose of 500 mg/m 2 . At doses, based on BSA, greater than or equal to 0.0012 times the 500 mg/m 2 human dose, pemetrexed administration resulted in dose-dependent increases in developmental delays (incomplete ossification of talus and skull bone; and decreased fetal weight).
8.2Lactation Risk Summary There is no information regarding the presence of pemetrexed or its metabolites in human milk, the effects on the breastfed child, or the effects on milk production. Because of the potential for serious adverse reactions in a breastfed child from pemetrexed injection, advise women not to breastfeed during treatment with pemetrexed injection and for one week after the last dose.
8.3Females and Males of Reproductive Potential Based on animal data, pemetrexed can cause malformations and developmental delays when administered to a pregnant woman [see Use in Specific Populations (8.1) ] . Pregnancy Testing Verify pregnancy status of females of reproductive potential prior to initiating Pemetrexed Injection [see Use in Specific Populations (8.1) ] . Contraception Females Because of the potential for genotoxicity, advise females of reproductive potential to use effective contraception during treatment with pemetrexed injection and for 6 months after the last dose of pemetrexed.
Males Because of the potential for genotoxicity, advise males with female partners of reproductive potential to use effective contraception during treatment with pemetrexed injection and for 3 months after the last dose [see Nonclinical Toxicology ( 13.1 ) ] . Infertility Males Pemetrexed may impair fertility in males of reproductive potential. It is not known whether these effects on fertility are reversible [see Nonclinical Toxicology ( 13.1 ) ] .
8.4Pediatric Use The safety and effectiveness of pemetrexed in pediatric patients have not been established. The safety and pharmacokinetics of pemetrexed were evaluated in two clinical studies conducted in pediatric patients with recurrent solid tumors (NCT00070473 N=32 and NCT00520936 N=72). Patients in both studies received concomitant vitamin B 12 and folic acid supplementation and dexamethasone.
No tumor responses were observed. Adverse reactions observed in pediatric patients were similar to those observed in adults. Single-dose pharmacokinetics of pemetrexed were evaluated in 22 patients age 4 to 18 years enrolled in NCT00070473 were within range of values in adults.
8.5Geriatric Use Of the 3,946 patients enrolled in clinical studies of pemetrexed, 34% were 65 and over and 4% were 75 and over. No overall differences in effectiveness were observed between these patients and younger patients. The incidences of Grade 3-4 anemia, fatigue, thrombocytopenia, hypertension, and neutropenia were higher in pa…
🤰 Pregnancy ▾
8.1Pregnancy Risk Summary Based on findings from animal studies and its mechanism of action, pemetrexed can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology ( 12.1 ) ] . There are no available data on pemetrexed use in pregnant women. In animal reproduction studies, intravenous administration of pemetrexed to pregnant mice during the period of organogenesis was teratogenic, resulting in developmental delays and malformations at doses lower than the recommended human dose of 500 mg/m 2 [see Data ] .
Advise pregnant women of the potential risk to a fetus [see Use in Special Populations ( 8.3 ) ] . In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Data Animal Data Pemetrexed was teratogenic in mice.
Daily dosing of pemetrexed by intravenous injection to pregnant mice during the period of organogenesis increased the incidence of fetal malformations (cleft palate; protruding tongue; enlarged or misshaped kidney; and fused lumbar vertebra) at doses (based on BSA) 0.03 times the human dose of 500 mg/m 2 . At doses, based on BSA, greater than or equal to 0.0012 times the 500 mg/m 2 human dose, pemetrexed administration resulted in dose-dependent increases in developmental delays (incomplete ossification of talus and skull bone; and decreased fetal weight).
🧒 Pediatric Use ▾
8.4Pediatric Use The safety and effectiveness of pemetrexed in pediatric patients have not been established. The safety and pharmacokinetics of pemetrexed were evaluated in two clinical studies conducted in pediatric patients with recurrent solid tumors (NCT00070473 N=32 and NCT00520936 N=72). Patients in both studies received concomitant vitamin B 12 and folic acid supplementation and dexamethasone.
No tumor responses were observed. Adverse reactions observed in pediatric patients were similar to those observed in adults. Single-dose pharmacokinetics of pemetrexed were evaluated in 22 patients age 4 to 18 years enrolled in NCT00070473 were within range of values in adults.
🧓 Geriatric Use ▾
8.5Geriatric Use Of the 3,946 patients enrolled in clinical studies of pemetrexed, 34% were 65 and over and 4% were 75 and over. No overall differences in effectiveness were observed between these patients and younger patients. The incidences of Grade 3-4 anemia, fatigue, thrombocytopenia, hypertension, and neutropenia were higher in patients 65 years of age and older as compared to younger patients: in at least one of five randomized clinical trials [see Adverse Reactions ( 6.1 ) and Clinical Studies ( 14.1 , 14.2 ) ].
🆘 Overdosage ▾
10. OVERDOSAGE No drugs are approved for the treatment of pemetrexed overdose. Based on animal studies, administration of leucovorin may mitigate the toxicities of pemetrexed overdosage. It is not known whether pemetrexed is dialyzable.
🧬 Clinical Pharmacology ▾
12. CLINICAL PHARMACOLOGY
12.1Mechanism of Action Pemetrexed is a folate analog metabolic inhibitor that disrupts folate-dependent metabolic processes essential for cell replication. In vitro studies show that pemetrexed inhibits thymidylate synthase (TS), dihydrofolate reductase, and glycinamide ribonucleotide formyltransferase (GARFT), which are folate-dependent enzymes involved in the de novo biosynthesis of thymidine and purine nucleotides. Pemetrexed is taken into cells by membrane carriers such as the reduced folate carrier and membrane folate binding protein transport systems.
Once in the cell, pemetrexed is converted to polyglutamate forms by the enzyme folylpolyglutamate synthetase. The polyglutamate forms are retained in cells and are inhibitors of TS and GARFT.
12.2Pharmacodynamics Pemetrexed inhibited the in vitro growth of mesothelioma cell lines (MSTO-211H, NCI-H2052) and showed synergistic effects when combined with cisplatin. Based on population pharmacodynamic analyses, the depth of the absolute neutrophil counts (ANC) nadir correlates with the systemic exposure to pemetrexed and supplementation with folic acid and vitamin B 12 . There is no cumulative effect of pemetrexed exposure on ANC nadir over multiple treatment cycles.
12.3Pharmacokinetics Absorption The pharmacokinetics of pemetrexed when pemetrexed injection was administered as a single agent in doses ranging from 0.2 to 838 mg/m 2 infused over a 10-minute period have been evaluated in 426 cancer patients with a variety of solid tumors. Pemetrexed total systemic exposure (AUC) and maximum plasma concentration (C max ) increased proportionally with increase of dose. The pharmacokinetics of pemetrexed did not change over multiple treatment cycles.
Distribution Pemetrexed has a steady-state volume of distribution of 16.1 liters. In vitro studies indicated that pemetrexed is 81% bound to plasma proteins. Elimination The total systemic clearance of pemetrexed is 91.8 mL/min and the elimination half-life of pemetrexed is 3.5 hours in patients with normal renal function (creatinine clearance of 90 mL/min).
As renal function decreases, the clearance of pemetrexed decreases and exposure (AUC) of pemetrexed increases. Metabolism Pemetrexed is not metabolized to an appreciable extent. Excretion Pemetrexed is primarily eliminated in the urine, with 70% to 90% of the dose recovered unchanged within the first 24 hours following administration.
In vitro studies indicated that pemetrexed is a substrate of OAT3 (organic anion transporter 3), a transporter that is involved in the active secretion of pemetrexed. Specific Populations Age (26 to 80 years) and sex had no clinically meaningful effect on the systemic exposure of pemetrexed based on population pharmacokinetic analyses. Racial Groups The pharmacokinetics of pemetrexed were similar in Whites and Blacks or African Americans.
Insufficient data are available for other ethnic groups. Patients with Hepatic Impairment Pemetrexed has not been formally studied in patients with hepatic impairment. No effect of elevated AST, ALT, or total bilirubin on the PK of pemetrexed was observed in clinical studies.
Patients with Renal Impairment Pharmacokinetic analyses of pemetrexed included 127 patients with impaired renal function. Plasma clearance of pemetrexed decreases as renal function decreases, with a resultant increase in systemic exposure. Patients with creatinine clearances of 45, 50, and 80 mL/min had 65%, 54%, and 13% increases, respectively in systemic exposure (AUC) compared to patients with creatinine clearance of 100 mL/min [see Dosage and Administration ( 2.3 ) and Warnings and Precautions ( 5.2 ) ] .
Third-Space Fluid The pemetrexed plasma concentrations in patients with various solid tumors with stable, mild to moderate third-space fluid were comparable to those observed in patients without third space fluid collections. The effect of severe third space fluid on pharmacokinetics is not known. Drug Interacti…
🧬 Mechanism of Action ▾
12.1Mechanism of Action Pemetrexed is a folate analog metabolic inhibitor that disrupts folate-dependent metabolic processes essential for cell replication. In vitro studies show that pemetrexed inhibits thymidylate synthase (TS), dihydrofolate reductase, and glycinamide ribonucleotide formyltransferase (GARFT), which are folate-dependent enzymes involved in the de novo biosynthesis of thymidine and purine nucleotides. Pemetrexed is taken into cells by membrane carriers such as the reduced folate carrier and membrane folate binding protein transport systems.
Once in the cell, pemetrexed is converted to polyglutamate forms by the enzyme folylpolyglutamate synthetase. The polyglutamate forms are retained in cells and are inhibitors of TS and GARFT.
📦 How Supplied / Storage and Handling ▾
16. HOW SUPPLIED/STORAGE AND HANDLING How Supplied PEMRYDI RTU (pemetrexed injection) is supplied as a sterile clear, colorless to pale yellow to green-yellow ready-to-use solution packaged in a USP type-I glass vial with rubber stopper and aluminium flip-off cap. It is available as follows: 100 mg/10 mL (10 mg/mL): 1 Single-dose Vial in a Carton: NDC 70121-2453-1 500 mg/50 mL (10 mg/mL): 1 Single-dose Vial in a Carton: NDC 70121-2461-1 1,000 mg/100 mL (10 mg/mL): 1 Single-dose Vial in a Carton: NDC 70121-2462-1 Storage and Handling Store at 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature].
PEMRYDI RTU is a hazardous drug. Follow applicable special handling and disposal procedures. 1
📋 Description ▾
11. DESCRIPTION Pemetrexed is a folate analog metabolic inhibitor. The drug substance, Pemetrexed Disodium Hemipentahydrate, has the chemical name disodium N-[4-[2-(2-amino-4,7-dihydro-4-oxo-1H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl] benzoyl]-L-glutamic acid hemipentahydrate, with a molecular formula of C 20 H 19 N 5 Na 2 O 6 •2.5 H 2 O and a molecular weight of 516.41.
The structural formula is as follows: PEMRYDI RTU is a sterile clear, colorless to pale yellow to green-yellow ready-to-use solution in single-dose vials. Each milliliter of solution contains 10 mg of pemetrexed (equivalent to 12.1 mg pemetrexed disodium hemipentahydrate), 10 mg of mannitol, 9 mg of sodium chloride, 1 mg of L-cysteine hydrochloride, sodium hydroxide and/or hydrochloric acid to adjust pH and water for injection. 1
💬 Information for Patients ▾
17. PATIENT COUNSELING INFORMATION Advise the patient to read the FDA-approved patient labeling (Patient Information). Premedication and Concomitant Medication : Instruct patients to take folic acid as directed and to keep appointments for vitamin B 12 injections to reduce the risk of treatment-related toxicity.
Instruct patients of the requirement to take corticosteroids to reduce the risks of treatment-related toxicity [see Dosage and Administration ( 2.4 ) and Warnings and Precautions ( 5.1 ) ] . Myelosuppression : Inform patients of the risk of low blood cell counts and instruct them to immediately contact their physician for signs of infection, fever, bleeding, or symptoms of anemia [see Warnings and Precautions ( 5.1 ) ] . Renal Failure : Inform patients of the risks of renal failure, which may be exacerbated in patients with dehydration arising from severe vomiting or diarrhea.
Instruct patients to immediately contact their healthcare provider for a decrease in urine output [see Warnings and Precautions ( 5.2 ) ] . Bullous and Exfoliative Skin Disorders : Inform patients of the risks of severe and exfoliative skin disorders. Instruct patients to immediately contact their healthcare provider for development of bullous lesions or exfoliation in the skin or mucous membranes [see Warnings and Precautions ( 5.3 ) ] .
Interstitial Pneumonitis : Inform patients of the risks of pneumonitis. Instruct patients to immediately contact their healthcare provider for development of dyspnea or persistent cough [see Warnings and Precautions ( 5.4 ) ] . Radiation Recall : Inform patients who have received prior radiation of the risks of radiation recall.
Instruct patients to immediately contact their healthcare provider for development of inflammation or blisters in an area that was previously irradiated [see Warnings and Precautions ( 5.5 ) ] . Increased Risk of Toxicity with Ibuprofen in Patients with Renal Impairment : Advise patients with mild to moderate renal impairment of the risks associated with concomitant ibuprofen use and instruct them to avoid use of all ibuprofen containing products for 2 days before, the day of, and 2 days following administration of PEMRYDI RTU [see Dosage and Administration ( 2.5 ) , Warnings and Precautions ( 5.6 ) , and Drug Interactions ( 7 ) ] .
Embryo-Fetal Toxicity : Advise females of reproductive potential and males with female partners of reproductive potential of the potential risk to a fetus [see Warnings and Precautions ( 5.7 ) and Use in Specific Populations ( 8.1 ) ] . Advise females of reproductive potential to use effective contraception during treatment with PEMRYDI RTU and for 6 months after the last dose. Advise females to inform their prescriber of a known or suspected pregnancy.
Advise males with female partners of reproductive potential to use effective contraception during treatment with PEMRYDI RTU and for 3 months after the last dose [see Warnings and Precautions ( 5.7 ) and Use in Specific Populations ( 8.3 ) ] . Lactation : Advise women not to breastfeed during treatment with PEMRYDI RTU and for 1 week after the last dose [see Use in Specific Populations ( 8.2 ) ] . PEMRYDI RTU ® is a registered trademark of Amneal Pharmaceuticals LLC.
Manufactured by: Zydus Lifesciences Limited Ahmedabad, India. Distributed by: Amneal Pharmaceuticals LLC Bridgewater, NJ 08807 Rev. 07-2025-03