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Breast Cancer: 10 biotech companies competing in the clinic

OncologyKnife fightData as of 2026-09-04

Competitors10in the clinic
Median market cap$288Muniverse median $1.20B
Allocated capital$2.7B$19.8B competing
Phase 3 or filed26 mid, 2 early
Pure plays2this indication only
Capital rank77/299crowding rank 7

Breast Cancer is one of the more crowded fields on the map: 10 companies in the clinic, ranking it 7th of 299 indications by competitor count. The median competitor is worth $288M, below the $1.20B median of the universe.

That gap is the crowding discount. When a field is deep the market pays less per company, because the same eventual revenue has to be split across more shots on goal.

JAZZ alone accounts for 81% of the $19.8B of market capitalisation competing here, so this is a leader plus a tail rather than a level race.

$2.7B of allocated capital sits in Breast Cancer, 77th of 299 indications, and 2 of the 10 companies are pure plays that trade on this indication alone.

Companies developing drugs for Breast Cancer 10

TickerCompanyLead assetPhaseTrialsMarket capPure playIndicationsNext catalyst
OLMAOlema PharmaceuticalsPalazestrantPhase 36$939MNo2 31 Dec 2026
GLSIGreenwich LifeSciencesGLSI-100Phase 31$229MYes1No dated event
JAZZJazz PharmaceuticalsZanidatamabPhase 21$16.1BNo14 30 Sep 2026
DSGNDesign TherapeuticsRaloxifene- UsualPhase 22$941MNo6 31 Dec 2026
PBYIPuma BiotechnologyAlisertibPhase 22$486MNo3No dated event
ALXOALX Oncology HoldingsEvorpaceptPhase 22$281MNo4 31 Dec 2026
BCYCBicycle TherapeuticsZelenectide pevedotinPhase 21$214MNo4 31 Dec 2026
ONCYOncolytics BiotechPelareorepPhase 21$102MNo2 31 Dec 2026
ZNTLZentalis PharmaceuticalsAzenosertibPhase 11$295MNo3 23 Oct 2026
NERVMinerva NeuroscienceshuMNC2-CAR44 CAR T cells or huMNC2-CAR22 CAR T cellsPhase 12$224MYes1 31 Dec 2027

Sorted by phase, then by market capitalisation. Ticker links open the company profile. JAZZ holds 81% of the $19.8B competing in this indication.

Why Breast Cancer is a knife fight

Crowded and cheaply priced. Six or more competitors and a median company below the universe median.

The map splits indications on two folds: six or more competitors counts as crowded, and a median company above $1.20B counts as richly priced. Breast Cancer has 10 competitors and a median of $288M.

Oncology

Oncology holds $187B of the map's capital, 27.8% of the total, spread across 119 indications and 103 companies. 34 of those indications have more than one company competing.

See every Oncology indication on the map

Breast Cancer pipeline questions

Which biotech companies are developing drugs for Breast Cancer?

10 US-listed companies in the $100M to $20B market cap band run clinical programmes in Breast Cancer. The largest and most advanced are Olema Pharmaceuticals (OLMA, Palazestrant, Phase 3); Greenwich LifeSciences (GLSI, GLSI-100, Phase 3); Jazz Pharmaceuticals (JAZZ, Zanidatamab, Phase 2); Design Therapeutics (DSGN, Raloxifene- Usual, Phase 2); Puma Biotechnology (PBYI, Alisertib, Phase 2). The full list of 10 is in the table on this page.

How advanced is the Breast Cancer pipeline?

Of the 10 clinical-stage programmes in Breast Cancer, 2 are in Phase 3 or filed, 6 are in mid-stage development and 2 are in early-stage development.

Which company leads the Breast Cancer field?

JAZZ is the largest developer in Breast Cancer, holding 81% of the $19.8B of market capitalisation competing in the indication. The median competitor is worth $288M.

When is the next Breast Cancer catalyst?

The next dated catalyst in Breast Cancer is JAZZ on 30 Sep 2026. 7 dated events across the field fall in the next 12 months.

How this page is built

  • Universe is US-listed drug developers with a $100M to $20B market capitalisation, identified by SEC SIC code 2833, 2834 or 2836 or by a pharmaceutical or biotechnology industry classification, less a reviewed exclusion list of contract research organisations, device and diagnostics makers and diversified generics manufacturers.
  • An asset attributed to three or more different companies is treated as shared standard of care rather than any one company’s programme and excluded. Pembrolizumab alone appears under 21 tickers in raw trial data.
  • A programme counts only where at least one industry-sponsored trial supports it, so investigator-initiated academic studies of third-party drugs are excluded.

Allocated capital divides each company’s market capitalisation evenly across the indications it is running clinical programmes in, so every dollar of the universe is counted exactly once. Total market capitalisation competing counts a company in each of its indications and therefore sums to more than the universe.

Third-party market size estimates are not used anywhere on this page. Approved incumbents are excluded from competitor counts, and companies above $20B are outside the universe by construction.

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