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Data updated: Jun 28, 2026

STEMLINE THERAPEUTICS INC

Biotech

STEMLINE THERAPEUTICS INC is a biotechnology company focused on Immunology, Oncology, Dermatology.

2018
Since
1
Drugs
-
Trials
0
New Drugs (2yr)

FDA Novel Drug Designations

(2018)
1 Novel 1 First-in-Class 1 Orphan 1 Breakthrough 1 Priority Review
See 1 novel approval →
2018 ELZONRIS (TAGRAXOFUSP-ERZS) First-in-Class · Orphan · Breakthrough · Priority Review

STEMLINE THERAPEUTICS INC's Key Drugs

STEMLINE THERAPEUTICS INC's core commercial portfolio centers on ELZONRIS, spanning Immunology and Oncology — its most strategically important drugs approved in the last 15 years.

STEMLINE THERAPEUTICS INC's Recent FDA Approvals

New NDA/BLA approvals for STEMLINE THERAPEUTICS INC over the last two years — novel drugs only, excluding generics and label supplements.

No recent approvals

STEMLINE THERAPEUTICS INC's Therapeutic Areas

STEMLINE THERAPEUTICS INC's approved drugs and pipeline span 4 therapeutic areas, led by Immunology and Oncology. Weighted by commercial stage — approved drugs count most, then late-stage trials.

Immunology 55%
0 drugs Phase 3: 7 Phase 2: 7
Oncology 41%
1 drugs Phase 3: 2 Phase 2: 2 Phase 1: 13
Dermatology 3%
0 drugs Phase 2: 1
Gastroenterology 1%
0 drugs Phase 1: 1

STEMLINE THERAPEUTICS INC's Top Competitors

STEMLINE THERAPEUTICS INC's closest competitors by therapeutic-area and drug-target overlap include Pfizer, PF PRISM CV, and Johnson & Johnson. Ranked by overlap in therapeutic areas and drug targets across approved drugs and pipeline.

STEMLINE THERAPEUTICS INC Pipeline Snapshot

STEMLINE THERAPEUTICS INC has 33 active clinical programs from ClinicalTrials.gov — 9 Phase 3, 10 Phase 2 and 14 Phase 1.

9
Phase 3
10
Phase 2
14
Phase 1

Phase 3 Readout Calendar Pro

1 Phase 3 trial with confidence-graded primary completion dates.

Full calendar →
Q3 2029
Elacestrant
Breast Cancer
Estimated · fresh NCT06492616

Anchored on CT.gov primary completion date. Topline announcements typically precede this by 3–9 months. Confidence labels combine date type (ACTUAL/ESTIMATED) with last-update freshness.

Pro Intelligence Preview

Deep insights for investors and analysts

Revenue Insights

  • ELZONRIS leads revenue
  • Drug-level revenue analysis

Trial Catalysts

  • Immunology pipeline focus
  • 1 Phase 3 readout tracked
View readout calendar →

Patent Risk

  • Patent expiration timeline
  • Revenue at risk analysis

Compare Companies

  • Side-by-side pipeline analysis
  • Revenue & market share comparison

Execution Intelligence

  • Phase 3: 1/2 completed
  • Speed: 53 months avg
Unlock Full Intelligence

Revenue forecasts • Trial milestones • Patent risk modeling

How We Calculate These Metrics

Execution Quality Score

Measures trial completion rates weighted by phase importance. Phase 3 trials count 4x more than Phase 1 because late-stage completion is harder and more valuable.

What counts as "completed": A trial that reached its planned endpoint and reported results. Trials that were terminated early, withdrawn, or suspended are not counted as completed—these often indicate safety issues, lack of efficacy, or strategic pivots.

  • Excellent (80%+): Top-tier execution, most trials reach planned endpoints
  • Good (60-79%): Strong execution with occasional early terminations
  • Fair (40-59%): Average execution, notable rate of terminated/withdrawn trials
  • Needs Improvement (under 40%): High termination rates, execution challenges