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paclitaxel

Sold as Abraxane. Class: Taxanes. First FDA approval 12/29/1992: 34 years on the US market.

This grade answers one narrow question: how strong is the public evidence and safety record behind this drug, and how clean is its money trail and court record? It is not a verdict on whether the drug is right for you.

B

Score breakdown (83/100)

Safety ×35%
D
Evidence ×25%
A
Regulatory ×15%
A
Money & lawsuits ×15%
A
Options ×10%
A

Safety: 62

Evidence: 89

Regulatory history: 95

Money & lawsuits: 100

Options: 100

FDA boxed warning

WARNING: SEVERE MYELOSUPPRESSION • Do not administer ABRAXANE therapy to patients with baseline neutrophil counts of less than 1,500 cells/mm 3 [see Contraindications (4) ]. • Monitor for neutropenia, which may be severe and result in infection or sepsis [see Warnings and Precautions (5.1 , 5.3) ]. • Perform frequent complete blood cell counts on all patients receiving ABRAXANE [see Warnings and Precautions (5.1 , 5.3) ]. WARNING: SEVERE MYELOSUPPRESSION See full prescribing information for complete boxed warning . • Do not administer ABRAXANE therapy to patients with baseline neutrophil counts of less than 1,500 cells/mm 3 . ( 4 ) • Monitor for neutropenia, which may be severe and result in infection or sepsis. ( 5.1 , 5.3 ) • Perform frequent complete blood cell counts on all patients receiving ABRAXANE. ( 5.1 , 5.3 )

Independent reviews and post-approval warnings

WHO Essential Medicine

Listed on the WHO Model List of Essential Medicines: a global expert panel judged it among the medicines a health system should always have, on evidence of value, not marketing.

What the FDA label says

Approved uses

is a microtubule inhibitor indicated for the treatment of: • Metastatic breast cancer, after failure of combination chemotherapy for metastatic disease or relapse within 6 months of adjuvant chemotherapy. Prior therapy should have included an anthracycline unless clinically contraindicated. ( 1.1 ) • Locally advanced or metastatic non-small cell lung cancer (NSCLC), as first-line treatment in combination with carboplatin, in patients who are not candidates for curative surgery or radiation therapy. ( 1.2 ) • Metastatic adenocarcinoma of the pancreas as first-line treatment, in combination with gemcitabine. ( 1.3 ) 1.1 Metastatic Breast Cancer ABRAXANE is indicated for the treatment of breast cancer after failure of combination chemotherapy for metastatic disease or relapse within 6 months of adjuvant chemotherapy. Prior therapy should have included an anthracycline unless clinically contraindicated. 1.2 Non-Small Cell Lung Cancer ABRAXANE is indicated for the first-line treatment of locally advanced or metastatic non-small cell lung cancer, in combination with carboplatin, in patients who are not candidates for curative surgery or radiation therapy. 1.3 Adenocarcinoma of the Pancre...

Contraindications

is contraindicated in patients with: • Baseline neutrophil counts of < 1,500 cells/mm 3 [see Warnings and Precautions (5.1) ] • A history of severe hypersensitivity reactions to ABRAXANE [see Warnings and Precautions (5.5) ] • Neutrophil counts of < 1,500 cells/mm 3 . ( 4 ) • Severe hypersensitivity reactions to ABRAXANE. ( 4 )

Warnings and precautions

• Sensory neuropathy occurs frequently and may require dose reduction or treatment interruption. ( 5.2 ) • Sepsis occurred in patients with or without neutropenia who received ABRAXANE in combination with gemcitabine; interrupt ABRAXANE and gemcitabine until sepsis resolves, and if neutropenia, until neutrophils are at least 1500 cells/mm 3 , then resume treatment at reduced dose levels. ( 5.3 ) • Pneumonitis occurred with the use of ABRAXANE in combination with gemcitabine; permanently discontinue treatment with ABRAXANE and gemcitabine. ( 5.4 ) • Severe hypersensitivity reactions with fatal outcome have been reported. Do not rechallenge with this drug. ( 4 , 5.5 ) • Exposure and toxicity of paclitaxel can be increased in patients with hepatic impairment, consider dose reduction and closely monitor patients with hepatic impairment. ( 2.5 , 5.6 ) • ABRAXANE contains albumin derived from human blood, which has a theoretical risk of viral transmission. ( 5.7 ) • ABRAXANE can cause fetal harm. Advise patients of potential risk to a fetus and to use effective contraception. ( 5.8 , 8.1 , 8.3 ) 5.1 Severe Myelosuppression Severe myelosuppression (primarily neutropenia) is dose-dependent...

Adverse reactions (label)

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. The most common adverse reactions (≥ 20%) with single-agent use of ABRAXANE in metastatic breast cancer are alopecia, neutropenia, sensory neuropathy, abnormal ECG, fatigue/asthenia, myalgia/arthralgia, AST elevation, alkaline phosphatase elevation, anemia, nausea, infections, and diarrhea [see Adverse Reactions (6.1) ] . The most common adverse reactions (≥ 20%) of ABRAXANE in combination with carboplatin for non-small cell lung cancer are anemia, neutropenia, thrombocytopenia, alopecia, peripheral neuropathy, nausea, and fatigue [see Adverse Reactions (6.1) ]. The most common serious adverse reactions of ABRAXANE in combination with carboplatin for non-small cell lung cancer are anemia (4%) and pneumonia (3%). The most common adverse reactions resulting in permanent discontinuation of ABRAXANE are neutropenia (3%), thrombocytopenia (3%), and peripheral neuropathy (1%). The most common adverse reactions resulting in dose ...

Recent major label changes

Dosage and Administration ( 2.1 , 2.7 ) 8/2020 Contraindications ( 4 ) 8/2020 Warnings and Precautions ( 5.1 , 5.2 ) 8/2020

Source: FDA SPL label for ABRAXANE (Abraxis BioScience, LLC), effective 20221031. Full label on DailyMed.

Side-effect reports sent to the FDA

These are counts of reports people filed, not rates of harm. Anyone can file one, and nobody checks whether the drug was the cause. Millions of doses are taken for every report sent, so the useful part is how this drug compares with the average across all drugs.

102,661reports that mention this drug
102,470of those blame this drug, not another one the person was taking
95%of reports describe a serious outcome, such as a hospital stay (average for all drugs: 57%)
15.6%of reports include a death, from any cause (average for all drugs: 9.1%)

Problems reported most often

Off Label Use · 6,199Nausea · 5,808Dyspnoea · 5,545Neutropenia · 5,464Diarrhoea · 5,417Malignant Neoplasm Progression · 4,930Anaemia · 4,807Fatigue · 4,655Death · 4,612Neuropathy Peripheral · 4,352Disease Progression · 4,075Pyrexia · 3,924Vomiting · 3,800Myelosuppression · 3,683Febrile Neutropenia · 3,574

Reports per year

20192020202120222023202420252026
8,8018,5728,6919,2139,41010,89811,1935,206

Source: the FDA's Adverse Event Reporting System (FAERS). Reports are voluntary and unverified. Drugs that are prescribed a lot, in the news, or in lawsuits attract more reports, so the percentages are compared with the whole database to correct for that partly, not fully.

Recalls and regulatory record

2recall actions on file
4 / 20brand / generic applications
0label changes since 2021
NoREMS program
DateClassFirmReason
11/2013Class IIIFresenius Kabi USA, LLCLabeling: Incorrect or Missing Package Insert- Missing text on the product insert in the "Clinical Studies" and "Specific Adverse Events" sections.
06/2012Class IIHospira Inc.The affected lots of Carboplatin Injection, Cytarabine Injection, Methotrexate Injection, USP, and Paclitaxel Injection are being recalled due to visible particles embedded in the glass located at the neck of the vial. There may be the pot

Class I = reasonable probability of serious harm. Class II = temporary or reversible harm. Class III = unlikely to harm. Most generic recalls are manufacturing or labeling defects for one lot, not a verdict on the molecule.

Evidence base

1,565randomized trials (PubMed)
209systematic reviews
6,195registered trials
50%of completed trials posted results
13%terminated or withdrawn
42%industry-funded

Independent Cochrane reviews

Counts measure how much evidence exists and how transparent it is, not how big the benefit is. For that, ask your prescriber: if 100 people like me took this, how many would get better because of it, and how many would be harmed? (Doctors call these the "number needed to treat" and "number needed to harm.") It differs by condition and is the number drug ads leave out. Sources: PubMed, ClinicalTrials.gov.

Money and lawsuits

In 2024, drug companies reported $0 in payments to US physicians and hospitals tied to this drug across 0 transactions.

No pending federal MDL names this drug or its brands.

Not named in any federal pharmaceutical settlement of $100M or more on record.

Sources: CMS Open Payments (Sunshine Act); Judicial Panel on Multidistrict Litigation pending docket list; DOJ settlements as tabulated on Wikipedia with links to the primary record. State-court and individual suits are not included.

Who takes it and what it costs

961Medicare Part D patients (2024)
3,331prescriptions filled
$2,508average cost per fill
$8Mtotal Medicare spend
ProductFills$/fill
Paclitaxel2,204$93
Abraxane984$7,280
Paclitaxel Protein-Bound143$6,898

Same-class alternatives

cabazitaxeldocetaxelpaclitaxel poliglumex

Same ATC pharmacological class, graded ones first, best grade at the top. Being in the same class does not make them interchangeable for your condition; it makes them worth asking about.

Questions to ask your prescriber

  1. This drug carries a boxed warning. Which specific risk does it cover, and does it apply to me?
  2. The most-reported problems in FDA's adverse event data are nausea, dyspnoea, neutropenia. How would we recognize and handle those?
  3. Off-label use is among the most-reported items for this drug. Is my use on-label, and if not, what evidence supports it?
  4. Why this one over cabazitaxel, docetaxel, paclitaxel poliglumex? What would make you pick one of those instead?
  5. What result are we expecting, by when, and what is the plan if it does not happen?
  6. If 100 people like me took this drug, how many would actually get better because of it, and how many would be harmed by it? (Doctors call these the number needed to treat and the number needed to harm.)