Who are OBI-999's main competitors?

Direct comparators (same drug class / molecular target / therapeutic area): LONCASTUXIMAB TESIRINE, Tisotumab Vedotin, Besponsa, Mylotarg, Herceptin, Inotuzumab ozogamicin-dose level 1.

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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 2026-05-14 · How we verify

OBI-999 — Competitive Intelligence Brief

OBI-999 (OBI-999) competitive landscape: 6 comparators, recent regulatory actions, upcoming PDUFA, patent timeline. Class: Antibody-drug conjugate (ADC). Area: Oncology.

discontinued Antibody-drug conjugate (ADC) Globo H (globoside carbohydrate antigen) Oncology Small molecule Live · refreshed every 30 min

Target snapshot

OBI-999 (OBI-999) — OBI Pharma, Inc. OBI-999 is an antibody-drug conjugate targeting Globo H carbohydrate antigen on cancer cells to deliver cytotoxic payload.

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
OBI-999 TARGET	OBI-999	OBI Pharma, Inc	discontinued	Antibody-drug conjugate (ADC)	Globo H (globoside carbohydrate antigen)
LONCASTUXIMAB TESIRINE	LONCASTUXIMAB TESIRINE		marketed	Antibody-Drug Conjugate (ADC)	CD19	2021-01-01
Tisotumab Vedotin	tivdak	SEAGEN	marketed	Antibody-Drug Conjugate (ADC)	Tissue factor	2021-01-01
Besponsa	inotuzumab-ozogamicin	Pfizer	marketed	Antibody-drug conjugate (ADC)	CD22	2017-01-01
Mylotarg	Gemtuzumab Ozogamicin	Pfizer	marketed	Antibody-drug conjugate (ADC)	CD33 antigen	2000-01-01
Herceptin	trastuzumab	Roche	marketed	Antibody-drug conjugate (ADC)	HER2 receptor, subdomain IV	1998-01-01
Inotuzumab ozogamicin-dose level 1	Inotuzumab ozogamicin-dose level 1	Pfizer	marketed	Antibody-drug conjugate (ADC)	CD22

Recent regulatory actions (last 90 days)

2026-02-20 — LONCASTUXIMAB TESIRINE · FDA · approved · US

Upcoming PDUFA dates (next 180 days)

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

Patent timeline (forward window)

No upcoming patent expiries for this set.

Sponsor landscape (Antibody-drug conjugate (ADC) class)

Pfizer · 3 drugs in this class
Jiaxing AnDiCon Biotech Co.,Ltd · 2 drugs in this class
AstraZeneca · 1 drug in this class
BioAtla, Inc. · 1 drug in this class
Byondis B.V. · 1 drug in this class
Charite University, Berlin, Germany · 1 drug in this class
Gustave Roussy, Cancer Campus, Grand Paris · 1 drug in this class
Medstar Health Research Institute · 1 drug in this class
OBI Pharma, Inc · 1 drug in this class
On Target Laboratories, LLC · 1 drug in this class

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Cite this brief

Drug Landscape (2026). OBI-999 — Competitive Intelligence Brief. https://druglandscape.com/ci/obi-999. Accessed 2026-05-14.

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