Lartruvo Side Effects Center

Last updated on RxList: 4/11/2018
Lartruvo Side Effects Center

Medical Editor: John P. Cunha, DO, FACOEP

Last reviewed on RxList 4/11/2018

Lartruvo (olaratumab) injection is a platelet-derived growth factor receptor alpha (PDGFR-a) blocking antibody indicated, in combination with doxorubicin, for the treatment of adult patients with soft tissue sarcoma (STS) with a histologic subtype for which an anthracycline-containing regimen is appropriate and which is not amenable to curative treatment with radiotherapy or surgery. Common side effects of Lartruvo plus doxorubicin include:

Lartruvo is administered at a dose of 15 mg/kg as an intravenous infusion over 60 minutes on Days 1 and 8 of each 21-day cycle until disease progression or unacceptable toxicity. For the first 8 cycles, Lartruvo is administered with doxorubicin. Lartruvo may interact with other drugs. Tell your doctor all medications and supplements you use. Lartruvo is not recommended for use during pregnancy; it may harm a fetus. Women should use birth control while using Lartruvo and for 3 months following the last dose. It is unknown if Lartruvo passes into breast milk or how it would affect a nursing infant. Breastfeeding is not recommended while using Lartruvo.

Our Lartruvo (olaratumab) injection Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

SLIDESHOW

Skin Cancer Symptoms, Types, Images See Slideshow
Lartruvo Consumer Information

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Some side effects may occur during the injection. Tell your caregiver right away if you feel dizzy, light-headed, chilled, flushed, feverish, or short of breath, or if you have a cold sweat, chest tightness, or trouble breathing.

Call your doctor at once if you have:

  • sores or white patches in or around your mouth, trouble swallowing or talking, dry mouth, bad breath, altered sense of taste;
  • easy bruising, unusual bleeding (nose, mouth, vagina, or rectum), purple or red pinpoint spots under your skin;
  • fever, cough, cold or flu symptoms;
  • swollen gums;
  • skin sores; or
  • trouble breathing.

Your cancer treatments may be delayed or permanently discontinued if you have certain side effects.

Common side effects may include:

  • nausea, vomiting, stomach pain, diarrhea, loss of appetite;
  • feeling tired;
  • muscle or joint pain;
  • numbness, weakness, or pain in your hands or feet;
  • hair loss; or
  • headache.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Read the entire detailed patient monograph for Lartruvo (Olaratumab Injection)

Lartruvo Professional Information

SIDE EFFECTS

The following adverse drug reactions are described elsewhere in the labeling:

  • Infusion-Related Reactions [see WARNINGS AND PRECAUTIONS].

Clinical Trials 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.

The data in the Warnings and Precautions section reflect exposure to LARTRUVO in 485 patients from three randomized, open-label, active-controlled clinical trials, which enrolled 256 patients with various tumors who received LARTRUVO in combination with chemotherapy (191 patients) or LARTRUVO as a single agent (65 patients); four openlabel single-arm trials which enrolled 96 patients with various tumors who received LARTRUVO as a single agent at doses of 10 to 20 mg/kg; and two trials, including Trial 1, which enrolled 133 patients with soft tissue sarcoma who received LARTRUVO at doses of 15 to 20 mg/kg in combination with doxorubicin (103 patients) or LARTRUVO as a single agent (30 patients). Among the 485 patients, 25% were exposed to LARTRUVO for ≥6 months and 6% were exposed for ≥12 months.

The data described below reflect exposure to LARTRUVO in 64 patients with metastatic soft tissue sarcoma enrolled in Trial 1, a multicenter, randomized (1:1), open-label, active-controlled trial comparing LARTRUVO plus doxorubicin with doxorubicin as a single agent. LARTRUVO was administered at 15 mg/kg as an intravenous infusion on Days 1 and 8 of each 21-day cycle until disease progression or unacceptable toxicity [see Clinical Studies]. All patients received doxorubicin 75 mg/m2 as an intravenous infusion on Day 1 of each 21-day cycle for a maximum of eight cycles and received dexrazoxane, prior to doxorubicin in cycles 5 to 8. In Trial 1, no patients had received a prior anthracycline-containing regimen. The trial excluded patients with an ECOG performance status >2; left ventricular ejection fraction <50%; or unstable angina pectoris, angioplasty, cardiac stenting, or myocardial infarction within 6 months.

Baseline demographics and disease characteristics were: median age 58 years (range 22 to 86); 45% male; 87% White, 8% Black, 3% Asian, 2% Other; 57% ECOG PS 0, 39% ECOG PS 1, and 5% ECOG PS 2. The median duration of exposure to LARTRUVO was 6 months (range: 21 days to 29.4 months) with 36 (56%) patients receiving LARTRUVO for ≥6 months and 10 (16%) patients receiving LARTRUVO for ≥12 months. The median cumulative doxorubicin dose was 488 mg/m2 in the LARTRUVO plus doxorubicin arm and 300 mg/m2 in the doxorubicin arm.

In Trial 1, adverse reactions resulting in permanent discontinuation of LARTRUVO occurred in 8% (5/64) of patients. The most common adverse reaction leading to LARTRUVO discontinuation was infusion-related reaction (3%). Dose reductions of LARTRUVO for adverse reactions occurred in 25% (16/64) of patients; the most common adverse reaction leading to dose reduction was Grade 3 or 4 neutropenia (20%). Dose delays of LARTRUVO for adverse reactions occurred in 52% (33/64) of patients; the most common adverse reactions resulting in dose delays were neutropenia (33%), thrombocytopenia (8%), and anemia (5%).

Table 1 summarizes adverse reactions that occurred in at least 10% of patients receiving LARTRUVO in the randomized portion of the study. The most common adverse reactions reported in at least 20% of patients receiving LARTRUVO plus doxorubicin were nausea, fatigue, musculoskeletal pain, mucositis, alopecia, vomiting, diarrhea, decreased appetite, abdominal pain, neuropathy, and headache.

Table 1: Adverse Reactions Occurring in ≥10% (All Grades) of Patients in the LARTRUVO plus Doxorubicin Arm and at a Higher Incidence than in the Doxorubicin Arm (Between Arm Difference of ≥5% for All Grades or ≥2% for Grades 3 and 4) (Trial 1)

Adverse Reactions LARTRUVO plus Doxorubicin
N=64
Doxorubicin
N=65
All Grades
(%)
Grade 3-4
(%)
All Grades
(%)
Grade 3-4
(%)
Gastrointestinal Disorders
  Nausea 73 2 52 3
  Mucositis 53 3 35 5
  Vomiting 45 0 19 0
  Diarrhea 34 3 23 0
  Abdominal Paina 23 3 14 0
General Disorders and Administrative Site Conditions
  Fatigueb 69 9 69 3
  Infusion-Related Reactions 13 3 3 0
Musculoskeletal and Connective Tissue Disorders
  Musculoskeletal Painc 64 8 25 2
Skin and Subcutaneous Tissue Disorders
  Alopecia 52 0 40 0
Metabolic and Nutritional Disorders
  Decreased Appetite 31 2 20 0
Nervous System Disorders
  Neuropathy 22 0 11 0
  Headache 20 0 9 0
Psychiatric Disorder
  Anxiety 11 0 3 0
Eye Disorder
  Dry Eyes 11 0 3 0
a Abdominal pain includes: abdominal pain, lower abdominal pain, and upper abdominal pain.
b Fatigue includes: asthenia and fatigue.
c Musculoskeletal pain includes: arthralgia, back pain, bone pain, flank pain, groin pain, musculoskeletal chest pain, musculoskeletal pain, myalgia, muscle spasms, neck pain, and pain in extremity.

In Trial 1, the most common laboratory abnormalities (≥20%) were lymphopenia, neutropenia, thrombocytopenia, hyperglycemia, elevated aPTT, hypokalemia, and hypophosphatemia as shown in Table 2.

Table 2: Laboratory Abnormalities Worsening from Baseline in >10% (All Grades) of Patients in the LARTRUVO plus Doxorubicin Arm and Occurring at a Higher Incidence than in the Doxorubicin Arm (Between Arm Difference ≥5% for All Grades or ≥2% for Grades 3 and 4) (Trial 1)

Laboratory Abnormality LARTRUVO plus Doxorubicina Doxorubicina
All Grades
(%)
Grades 3-4
(%)
All Grades
(%)
Grades 3-4
(%)
Chemistry        
  Hyperglycemia 52 2 28 3
  Increased aPTTb 33 5 13 0
  Hypokalemia 21 8 15 3
  Hypophosphatemia 21 5 7 3
  Increased Alkaline Phosphatase 16 0 7 0
  Hypomagnesemia 16 0 8 0
Hematology        
  Lymphopenia 77 44 73 37
  Neutropenia 65 48 63 38
  Thrombocytopenia 63 6 44 11
a The incidence is based on the number of patients who had both baseline and at least one on-study laboratory measurement: LARTRUVO plus doxorubicin arm (range 60 to 63 patients) and doxorubicin arm (range 39 to 62 patients).
b aPTT = activated partial thromboplastin time

Immunogenicity

As with all therapeutic proteins, there is the potential for immunogenicity. In clinical trials, 13/370 (3.5%) of evaluable LARTRUVO-treated patients tested positive for treatment-emergent anti-olaratumab antibodies by an enzymelinked immunosorbent assay (ELISA). Neutralizing antibodies were detected in all patients who tested positive for treatment-emergent anti-olaratumab antibodies. The effects of anti-olaratumab antibodies on efficacy, safety, and exposure could not be assessed due to the limited number of patients with treatment-emergent anti-olaratumab antibodies.

The detection of antibody formation is highly dependent on the sensitivity and specificity of the assay. Additionally, the observed incidence of antibody (including neutralizing antibody) positivity in an assay may be influenced by several factors including assay methodology, sample handling, timing of sample collection, concomitant medications, and underlying disease. For these reasons, comparison of incidence of antibodies to LARTRUVO with the incidences of antibodies to other products may be misleading.

Read the entire FDA prescribing information for Lartruvo (Olaratumab Injection)

© Lartruvo Patient Information is supplied by Cerner Multum, Inc. and Lartruvo Consumer information is supplied by First Databank, Inc., used under license and subject to their respective copyrights.

Health Solutions From Our Sponsors