Who are Camptosar's main competitors?

Direct comparators (same drug class / molecular target / therapeutic area): Bloxiverz, Razadyne, Camptosar, Zantac, Dyclone, Lorfan.

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Every 30 minutes from primary sources (FDA, EMA, MHRA, PMDA, ClinicalTrials.gov, USPTO). Subscribe to the RSS feed below for push alerts.

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Last reviewed 2026-05-13 · How we verify

Camptosar — Competitive Intelligence Brief

Camptosar (onivyde) competitive landscape: 6 comparators, recent regulatory actions, upcoming PDUFA, patent timeline. Class: Topoisomerase Inhibitor. Area: Oncology.

marketed Topoisomerase Inhibitor Acetylcholinesterase Oncology Live · refreshed every 30 min

Target snapshot

Camptosar (onivyde) — Pfizer. Camptosar works by inhibiting topoisomerase I, an enzyme that helps DNA replicate, causing DNA damage and cancer cell death.

Comparator set (6 drugs)

Auto-detected by same drug class / molecular target / therapeutic area, ranked by phase + recency. Override with ?vs=slug1,slug2,….

Drug	Generic	Sponsor	Phase	Class	Target	Approval / PDUFA
Camptosar TARGET	onivyde	Pfizer	marketed	Topoisomerase Inhibitor	Acetylcholinesterase	1996-01-01
Bloxiverz	NEOSTIGMINE	Fresenius Kabi	marketed	Cholinesterase Inhibitor	Acetylcholinesterase	2013-01-01
Razadyne	GALANTAMINE	Johnson & Johnson	marketed	Cholinesterase Inhibitor	Acetylcholinesterase	2001-01-01
Camptosar	Irinotecan Hydrochloride	Pfizer	marketed	Topoisomerase Inhibitor	Acetylcholinesterase	1996-01-01
Zantac	ranitidine	GSK (originally Glaxo)	marketed	H2 receptor antagonist	Multidrug and toxin extrusion protein 1, Acetylcholinesterase, Histamine H2 receptor	1983-06-01
Dyclone	DYCLONINE		marketed	dyclonine	Acetylcholinesterase	1982-01-01
Lorfan	LEVALLORPHAN	Roche	marketed	levallorphan	Mu-type opioid receptor, Acetylcholinesterase, Mu-type opioid receptor	1982-01-01

Recent regulatory actions (last 90 days)

No regulatory actions in the last 90 days for this set.

Upcoming PDUFA dates (next 180 days)

No PDUFA dates in the next 180 days for this set.

Patent timeline (forward window)

2027-01-06 — Camptosar · 8329213 · US
2027-01-06 — Camptosar · 8329213 · Compound · US
2028-08-29 — Camptosar · 8147867 · Compound · US
2028-08-29 — Camptosar · 8147867 · US
2033-06-12 — Camptosar · 9364473 · US
2033-06-12 — Camptosar · 9452162 · US
2033-06-12 — Camptosar · 9492442 · US
2033-06-12 — Camptosar · 9717724 · US
2033-06-12 — Camptosar · 9717724 · Method of Use · US
2033-06-12 — Camptosar · 9364473 · Method of Use · US
2033-06-12 — Camptosar · 12364691 · Method of Use · US
2033-06-12 — Camptosar · 11369597 · Method of Use · US
2033-06-12 — Camptosar · 9339497 · Method of Use · US
2033-06-12 — Camptosar · 9452162 · Method of Use · US
2033-06-12 — Camptosar · 9492442 · Method of Use · US
2033-06-12 — Camptosar · 10980795 · US
2033-06-12 — Camptosar · 11369597 · US
2033-06-12 — Camptosar · 9339497 · US
2033-06-12 — Camptosar · 10980795 · Method of Use · US
2036-08-19 — Camptosar · 11344552 · Method of Use · US
2036-10-15 — Camptosar · 10456360 · US
2036-10-15 — Camptosar · 10993914 · US
2036-10-15 — Camptosar · 12059497 · Formulation · US
2036-10-15 — Camptosar · 10456360 · Formulation · US
2036-10-15 — Camptosar · 10993914 · Formulation · US

Sponsor landscape (Topoisomerase Inhibitor class)

Pfizer · 3 drugs in this class
· 1 drug in this class

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Cite this brief

Drug Landscape (2026). Camptosar — Competitive Intelligence Brief. https://druglandscape.com/ci/onivyde. Accessed 2026-05-13.

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