Oncura

Carboplatin + Paclitaxel + Cetuximab: what to expect, day by day

Head and Neck Cancer21-day cycle6 effects documented

A chemo pair plus the targeted antibody cetuximab for head and neck cancer. Expect lowered blood counts, hair loss, and — building over cycles — nerve tingling from paclitaxel. Cetuximab adds an acne-like rash on the face and upper body within the first couple of weeks, and can lower magnesium (checked on bloodwork).

Carboplatin + paclitaxel (chemo) plus cetuximab (an antibody), for head and neck cancer. Blood-count drops are nadir-based; paclitaxel's nerve tingling is CUMULATIVE. Cetuximab adds a distinctive acne-like rash (first 1-2 weeks), low magnesium, and first-infusion reactions.

Get help straight away — this is true on any regimen, on any day.

A temperature of 100.4°F (38°C) or higher during treatment can mean a serious infection while your blood counts are low. Call your team or go to the ER — do not wait it out.

Also urgent: trouble breathing or chest pain · swelling of the face, lips or throat · new confusion or fainting · shaking chills · not being able to keep fluids down.

This is standing guidance shown to everyone. Nothing on this page is based on anything about you, and nobody is monitoring you.

2 of the 6 entries below are marked provisional. They are shown because leaving them out would be its own distortion, but they have not yet been checked against the source document by a person, and they are not presented as authoritative. Every provisional entry is labelled where it appears.

Timed to the cycle

Day 1 is the day of your infusion. These are the effects a retrievable document ties to a day range for this regimen — not a prediction about you.

Infusion reaction (cetuximab)

During or just after an infusion

A reaction during the first cetuximab infusion (fever, chills, flushing, rarely trouble breathing). You'll get pre-medication and be watched; most reactions are mild.

Call your team urgently: Any trouble breathing, throat tightness, or dizziness during the infusion — tell staff at once.

reported by about 15-20% of people; severe in 2-5% · Timing is part of what this effect is · from Cetuximab

NeutropeniaPROVISIONAL

Typically around days 8–28

A temporary drop in infection-fighting white cells; the low point is usually days 8-14.

Call your team urgently: A temperature of 100.4°F (38.0°C) or higher — an emergency.

reported by about common% of people; severe in ~30-50% · Timing from the manufacturer’s prescribing information · from Carboplatin, Paclitaxel

Not tied to a cycle day

These build with the number of doses, or are measured from when treatment started, so a cycle day would be the wrong shape for them. Each keeps the timing its own source states.

Acneiform rash

first 1-2 weeks

An acne-like rash on the face, scalp, chest, and back — often a sign the drug is active — usually appearing in the first 1-2 weeks. Gentle skin care, sun protection, and sometimes an antibiotic cream/tablet help; tell your team early.

Call your team: Widespread blistering/peeling, or a rash with skin-infection signs (pus, spreading redness).

reported by about ~80% of people; severe in ~10-18% · from Cetuximab

Peripheral neuropathy (cumulative)PROVISIONAL

builds over cycles

Numbness or tingling in the hands and feet that builds with repeated doses; report it early. It often improves after treatment but may persist.

Call your team: Numbness that makes it hard to button clothes, walk, or feel the floor.

reported by about ~60% of people; severe in ~5-10% · from Paclitaxel

Low magnesium (hypomagnesemia)

builds over weeks of treatment

Cetuximab can make the kidneys waste magnesium; low levels cause cramps, tiredness, or tingling. Your team checks bloodwork and may give magnesium replacement.

reported by about ~30% of people · from Cetuximab

Hair loss and nausea

Sickness in the first 24 hours is the "acute" phase and usually peaks 2-3 hours in; anything from 24 to 120 hours is the "delayed" phase.

Hair loss is common (regrows after treatment), and nausea is usually mild-moderate and controlled with medicine.

reported by about hair loss common; nausea moderate% of people · Timing from a clinical guideline · from Paclitaxel, Carboplatin

Where this comes from

S1. Cetuximab (Erbitux) FDA prescribing information — FDA label
S2. Paclitaxel (Taxol) + Carboplatin (Paraplatin) FDA prescribing information — FDA label

Timing windows on this page rest on:

Taxol (paclitaxel) FDA prescribing information — “Neutrophil nadirs occurred at a median of 11 days” source
Definitional — an infusion reaction is one that occurs during or shortly after the infusion — “The timing is part of what the term denotes; there is no empirical claim here to source.”
MASCC/ESMO antiemetic consensus — emesis phases — “acute 0-24 h, delayed 25-120 h, overall 0-120 h” source

A window appears here only where a retrievable document ties it to a drug in this regimen. Where nothing could be found, the window was removed rather than estimated — so a missing time is an honest gap, not an oversight.

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