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olivLaw · US equity research

SELLAS Life Sciences Group, Inc. SLS

Pharmaceutical Preparations · SIC 2834 · Vertical: Pharmaceutical Preparations (SIC 2834)

9.14USD+3.04% · 1 dayClose 04 Nov 2026

SELLAS Life Sciences Group is a late-stage biopharmaceutical company developing the GPS immunotherapy and the CDK9 inhibitor SLS009 for cancer, mainly acute myeloid leukemia. The company faces two key moments: the final analysis of the Phase 3 REGAL trial, triggered by the 80th event, and topline data from the Phase 2 SLS009 study, expected in the fourth quarter of 2026. As of June 30, 2026 it reported cash of $138.3 million.

At the close of 04 Nov 2026, SELLAS Life Sciences Group, Inc. (SLS) stock was 9.14 USD (+3.04% on the day), with market capitalisation 1.8 bn USD, beta 1.08, 52-week range 1.39–15.46 USD. Latest reported quarter (Q2 2026): net income of -9.6 m USD, diluted EPS -0.05 USD.

Data as of · AI analysis dated · Source: SEC filings and closing prices, computed by olivLaw.

Market cap
1.8 bn USD
shares as of 10 Aug 2026
P/E (TTM)
unavailable
Diluted EPS TTM -0.21 · TTM to 30 Jun 2026
E/P (TTM)
-2.35%
TTM to 30 Jun 2026
Dividend yield
unavailable
Beta (2y)
1.08
Volatility (1y) 107%
52-week range
1.3915.46

Price history

Loading chart…

Technical reading

RSI (14)
38.3
weak (30–45)
Bollinger (20, 2)
8.62 – 13.21
in the lower half of the band · %B 0.11 · band width 42.1%
SMA 50 / 200
11.86 / 8.61
mixed trend
MACD (12, 26, 9)
-0.70 / -0.45
MACD below signal

Indicators describe past prices; on their own they do not predict direction. On our history the RSI ≤ 40 filter added no return (see the signals methodology).

Performance

CompanyS&P 500vs S&P 500Vertical median
1 month−21.4%−2.0%−19.4 pp—
3 months−22.9%−2.2%−20.8 pp—
6 months+77.5%+4.3%+73.2 pp—
Year to date+142.4%+10.6%+131.9 pp—
1 year+450.6%+10.5%+440.1 pp+16.6%
3 years+852.1%+73.7%+778.4 pp+16.8%
5 years−2.4%+61.7%−64.1 pp—
Max drawdown (1y)
−44.7%
21 Aug 2026 → 02 Nov 2026
Max drawdown (5y)
−94.6%
08 Nov 2021 → 18 Jan 2024
Compound annual growth (5y)
−0.5%
S&P 500 +10.1%

Price returns, dividends excluded.

Quarterly results

Latest quarter: Q2 2026 · 30 Jun 2026

Revenue
unavailable USD
unavailable YoY
Net income
-9.6 m USD
unavailable YoY
Diluted EPS
-0.05
unavailable YoY
net / operating
unavailable / unavailable

Quarterly statements · USD

Fiscal yearQ3 '24Q4 '24Q1 '25Q2 '25Q3 '25Q4 '25Q1 '26Q2 '26
Cost of revenue00000000 ≈
SG&A3.0 m2.5 m2.9 m3.0 m2.9 m3.5 m——
Operating income-7.3 m-6.9 m-6.1 m-6.9 m-7.1 m-8.3 m-9.3 m-10.6 m
Net income-7.1 m-6.7 m-5.8 m-6.6 m-6.8 m-7.7 m-8.4 m-9.6 m
Diluted EPS-0.10-0.09 ≈-0.07-0.07-0.06-0.05 ≈-0.05-0.05
Operating cash flow-7.8 m ≈-7.2 m-9.1 m-7.3 m ≈-7.1 m ≈-4.9 m-8.8 m-7.6 m ≈

≈ derived quarter (cumulative difference / share-days average)

E/P over time

E/P = trailing-12-month diluted EPS / price at quarter end. E/P is the inverse of P/E and stays defined when earnings are negative.

Fiscal years

Fiscal year20182019202020212022202320242025
Revenueunavailable01.9 m7.6 m1.0 m0unavailableunavailable
Revenue YoYunavailableunavailableunavailable+300.0%−86.8%−100.0%unavailableunavailable
Net income-27.7 m-19.3 m-16.8 m-20.7 m-41.3 m-37.3 m-30.9 m-26.9 m
Net income YoYunavailableunavailableunavailableunavailableunavailableunavailableunavailableunavailable
Diluted EPSunavailableunavailable-2.11-1.34-2.13-1.34-0.50-0.25
Diluted EPS YoYunavailableunavailableunavailableunavailableunavailableunavailableunavailableunavailable
net %unavailableunavailable-881.9%-272.4%-4,130.1%unavailableunavailableunavailable
Free cash flowunavailableunavailableunavailableunavailableunavailableunavailableunavailableunavailable

Reported results vs expectations

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Balance sheet & financial health

Fiscal year 2025 · 31 Dec 2025

Cash
71.8 m USD
Financial debt
unavailable USD
Net debt
unavailable USD
Equity
70.9 m USD
Total assets
78.3 m USD
Debt / equity
unavailable
Current ratio
10.72x
ROE
-66.9%
ROA
-54.9%
FCF margin
unavailable

Financial statements (source on every figure)

Revenue and net income (USD)

Margins

Income statement · USD

Revenue
2023
0
2024
—
2025
—

SEC (XBRL)· 28 Mar 2024verified

Cost of revenue
2023
0
2024
0
2025
0

SEC (XBRL)· 19 Mar 2026verified

Gross profit
2023
0 ≈
2024
—
2025
—

SEC (XBRL)· 28 Mar 2024derived

Research & development
2023
—
2024
—
2025
—

SEC (XBRL)· 31 Mar 2022verified

SG&A
2023
13.9 m
2024
12.4 m
2025
12.3 m

SEC (XBRL)· 19 Mar 2026verified

Operating income
2023
-37.9 m
2024
-31.5 m
2025
-28.3 m

SEC (XBRL)· 19 Mar 2026verified

Pre-tax income
2023
-37.3 m
2024
-30.9 m
2025
-26.9 m

SEC (XBRL)· 19 Mar 2026verified

Income tax
2023
0
2024
0
2025
0

SEC (XBRL)· 19 Mar 2026verified

Net income
2023
-37.3 m
2024
-30.9 m
2025
-26.9 m

SEC (XBRL)· 19 Mar 2026verified

Diluted EPS
2023
-1.34
2024
-0.50
2025
-0.25

SEC (XBRL)· 19 Mar 2026verified

Weighted average diluted shares
2023
27.8 m
2024
61.2 m
2025
109.1 m

SEC (XBRL)· 19 Mar 2026verified

Balance sheet · USD

Cash
2023
2.5 m
2024
13.9 m
2025
71.8 m

SEC (XBRL)· 19 Mar 2026verified

Receivables
2023
—
2024
—
2025
—

SEC (XBRL)· 12 May 2022verified

Current assets
2023
3.2 m
2024
16.3 m
2025
75.2 m

SEC (XBRL)· 19 Mar 2026verified

Goodwill
2023
1.9 m
2024
1.9 m
2025
1.9 m

SEC (XBRL)· 19 Mar 2026verified

Total assets
2023
6.2 m
2024
19.4 m
2025
78.3 m

SEC (XBRL)· 19 Mar 2026verified

Accounts payable
2023
5.6 m
2024
3.5 m
2025
2.9 m

SEC (XBRL)· 19 Mar 2026verified

Current liabilities
2023
13.7 m
2024
9.5 m
2025
7.0 m

SEC (XBRL)· 19 Mar 2026verified

Total liabilities
2023
14.2 m
2024
10.0 m
2025
7.5 m

SEC (XBRL)· 19 Mar 2026verified

Equity
2023
-8.0 m †
2024
9.5 m †
2025
70.9 m †

SEC (XBRL)· 19 Mar 2026verified

Cash flow · USD

Operating cash flow
2023
-31.4 m
2024
-35.4 m
2025
-28.4 m

SEC (XBRL)· 19 Mar 2026verified

Investing cash flow
2023
-5.5 m
2024
0
2025
—

SEC (XBRL)· 20 Mar 2025verified

Financing cash flow
2023
22.3 m
2024
46.8 m
2025
86.3 m

SEC (XBRL)· 19 Mar 2026verified

Computed indicators

Growth

Revenue growth (YoY)
-100.0%
computed by olivLawFY 2023
Revenue CAGR 3Y
unavailable
the base of the ratio is not positive
Revenue CAGR 5Y
unavailable
input data missing
EBIT growth (YoY)
unavailable
the base of the ratio is not positive
Net income growth (YoY)
unavailable
the base of the ratio is not positive
Net income CAGR 3Y
unavailable
the base of the ratio is not positive
Net income CAGR 5Y
unavailable
the base of the ratio is not positive
EPS growth (YoY)
unavailable
the base of the ratio is not positive
EPS CAGR 3Y
unavailable
the base of the ratio is not positive
EPS CAGR 5Y
unavailable
input data missing
FCF growth (YoY)
unavailable
input data missing

Profitability

Gross margin
unavailable
input data missing
EBITDA margin
unavailable
input data missing
EBIT margin
unavailable
input data missing
Net margin
unavailable
input data missing
FCF margin
unavailable
input data missing

Returns

ROE
-39.6%
computed by olivLawTTM to 30 Jun 2026 · balance sheet at 30 Jun 2026
ROA
-36.5%
computed by olivLawTTM to 30 Jun 2026 · balance sheet at 30 Jun 2026
ROIC
unavailable
input data missing
ROCE
-25.6%
computed by olivLawTTM to 30 Jun 2026 · balance sheet at 30 Jun 2026
Payout ratio (EPS)
unavailable
input data missing
Payout ratio (FCF)
unavailable
input data missing

Balance sheet

Net debt
unavailable
input data missing
Net debt / EBITDA
unavailable
input data missing
Debt / equity
unavailable
input data missing
Interest coverage
unavailable
input data missing

Liquidity

Current ratio
18.8x
computed by olivLawbalance sheet at 30 Jun 2026
Quick ratio
unavailable
input data missing
Cash ratio
18.3x
computed by olivLawbalance sheet at 30 Jun 2026

Cash

Operating cash flow
-28.4 m USD
computed by olivLawTTM to 30 Jun 2026
Capital expenditure
unavailable
input data missing
Free cash flow
unavailable
input data missing
FCF conversion
unavailable
input data missing
Cash conversion
unavailable
input data missing

Efficiency

Days sales outstanding
unavailable
input data missing
Days inventory outstanding
unavailable
input data missing
Days payables outstanding
unavailable
insufficient data
Cash conversion cycle
unavailable
input data missing

Market and valuation

Market capitalisation
1.8 bn USD
computed by olivLawbalance sheet at 30 Jun 2026
Enterprise value
unavailable
input data missing
Market cap / net income TTM
unavailable
insufficient data
P/E (TTM)
unavailable
insufficient data
Earnings yield
-2.3%
computed by olivLawTTM to 30 Jun 2026
P/B
13.4x
computed by olivLawbalance sheet at 30 Jun 2026
P/S
unavailable
input data missing
EV/EBITDA
unavailable
input data missing
EV/EBIT
unavailable
input data missing
EV/Sales
unavailable
input data missing
P/FCF
unavailable
input data missing
FCF yield
unavailable
input data missing
Dividend yield
unavailable
input data missing
Shareholder yield (distributions)
unavailable
input data missing

1 indicators that do not apply to the sector.

Valuation

olivLaw classification

Insufficient data
What is missing
  • indicators available: 1 of at least 6
  • score weight coverage: 4.2% of at least 60%
  • valuation methods computed: 0 of at least 1

A scoring methodology on indicators and valuation, not investment advice.

Closing price

9.14 USD

04 Nov 2026Source: olivLaw, closing series

Market cap: 1.8 bn USD

Key indicators

Market capitalisation
1.8 bn USD
computed by olivLawbalance sheet at 30 Jun 2026
P/E (TTM)
unavailable
insufficient data
P/B
13.4x
computed by olivLawbalance sheet at 30 Jun 2026
EV/EBITDA
unavailable
input data missing
ROE
-39.6%
computed by olivLawTTM to 30 Jun 2026 · balance sheet at 30 Jun 2026
Net margin
unavailable
input data missing
Revenue growth (YoY)
-100.0%
computed by olivLawFY 2023
Dividend yield
unavailable
input data missing

Coverage and freshness

23/37 reporting lines present
Latest full fiscal year: 2023
Latest reported period: 30 Jun 2026
Latest balance sheet date: 30 Jun 2026
Share count (cover of the latest filing), as of: 10 Aug 2026
Source: SEC (XBRL)published 11 Aug 2026
verified 1776derived 135

Score by group

4% · Insufficient data

Estimated value range

unavailable — no valuation method could be computed

Valuation assumptions are editorial choices, not measured; beta is not measured.

Valuation methods

  • DCF (discounted cash flow)unavailable · the input exists, but its latest figure is far older than the latest reported period: not used
  • Peers: EV/EBITDAunavailable · net debt missing: EV cannot be bridged to equity (missing debt is not zero)
  • Peers: P/Eunavailable · the base of the ratio is not positive
  • Dividend discount (DDM)unavailable · input data missing

no valuation method could be computed

Multiple comparisons use the SIC vertical: Pharmaceutical Preparations (SIC 2834)

Classification (SIC) comparables group by industry code, not by economic activity; the direct group is an editorial selection by activity. Members' multiples are on their own trailing twelve months, at their own latest close.

Assumptions (illustrative, editorial)

Risk-free rate
4.3%
Equity risk premium
5.0%
Beta (default)
1.00
Cost of equity
9.3%
Terminal growth
2.5%

Factor scorecard

Insufficient data

Minimum-evidence gate: indicators available: 1 of at least 6; score weight coverage: 4.2% of at least 60%; valuation methods computed: 0 of at least 1

FactorValueScoreWeight used
ROIC · Qualityunavailableunavailable—
Net margin · Qualityunavailableunavailable—
FCF conversion · Qualityunavailableunavailable—
Revenue CAGR 3Y · Growthunavailableunavailable—
EPS CAGR 3Y · Growthunavailableunavailable—
Net debt / EBITDA · Balance sheetunavailableunavailable—
Interest coverage · Balance sheetunavailableunavailable—
Current ratio · Balance sheet18.8x100 (on a fixed band)100%
P/E (TTM) · Valuationunavailableunavailable—
EV/EBITDA · Valuationunavailableunavailable—
FCF yield · Valuationunavailableunavailable—
Shareholder yield (distributions) · Returnsunavailableunavailable—
Payout ratio (FCF) · Returnsunavailableunavailable—

Factors without a value were dropped; the remaining weights were renormalised.

Score groups

  • Balance sheet· partial100/100 · 1/3 factors with a value
  • Growth· partialunavailable · 0/2 factors with a value
  • Quality· partialunavailable · 0/3 factors with a value
  • Returns· partialunavailable · 0/2 factors with a value
  • Valuation· partialunavailable · 0/3 factors with a value

A «partial» group is computed from under half of its weight or from one factor: it is not a full assessment of the group.

Memo

SELLAS Life Sciences Group, Inc. (SLS). Latest full fiscal year: 2023; data up to 2026-06-30.

Figures computed from the financial statements: revenue 0 USD in 2023; YoY growth -100.0%; ROE -39.6%.

Valuation cannot be computed from the available data.

Insufficient data for a verdict (indicators available: 1 of at least 6; score weight coverage: 4.2% of at least 60%; valuation methods computed: 0 of at least 1).

Text generated deterministically from the figures shown; no language model. Not investment advice.

What supports the thesis

  • Current ratio: 18.8x

What contradicts it

No signal among the computed factors. That is not an absence of risk: factors without data were not assessed, and business risks (margins, inventory, demand) are in the source-based analysis.

Not assessed (insufficient data or a ratio without meaning): ROIC, Net margin, FCF conversion, Revenue CAGR 3Y, EPS CAGR 3Y, Net debt / EBITDA, Interest coverage, P/E (TTM), EV/EBITDA, FCF yield, Shareholder yield (distributions), Payout ratio (FCF).

Versus the vertical median

Pharmaceutical Preparations (SIC 2834) · same industry (4-digit SIC) · compared with 39 companies

Multiples and returns vs the median

P/E
—
vertical median 32.4x
EV/EBITDA
—
vertical median 24.9x
P/S
—
vertical median 7.1x
P/B
13.4x
vertical median 6.0x
above median (+122.2%)
ROE
-39.6%
vertical median -9.5%
below median
Net margin
—
vertical median 4.2%
EBIT margin
—
vertical median -4.2%
Revenue YoY
-100.0%
vertical median 5.9%
below median (−1,807.0%)
Net debt/EBITDA
—
vertical median -0.0x
Dividend yield
—
vertical median 2.2%

Price rebased to 100 (monthly, 5 years)

Companies in the vertical

Market capP/EROENet marginRevenue YoY1A / 3A
LLYEli Lilly And Company1,325.9 bn45.786.1%31.9%+44.7%+31% / +138%
JNJJohnson & Johnson640.8 bn40.420.0%16.2%+6.0%+29% / +72%
ONCBeone Medicines Ltd.524.7 bn817.514.7%10.7%+40.2%+4% / +90%
ABBVAbbVie Inc.505.5 bn49.2—15.7%+8.6%+26% / +101%
MRKMerck & Co., Inc.356.9 bn115.67.0%4.8%+1.3%+38% / +41%
ABTAbbott Laboratories190.6 bn30.612.4%13.9%+5.7%−15% / +5%
PFEPfizer Inc171.0 bn42.74.4%6.3%−1.6%+17% / −2%
VRTXVertex Pharmaceuticals Inc134.6 bn34.220.8%30.7%+8.9%+22% / +50%
BMYBristol-Myers Squibb Company126.1 bn13.744.1%18.5%−0.2%+25% / +25%
TEVATeva Pharmaceutical Industries Limited48.9 bn97.66.6%3.6%+4.3%+56% / +327%
ZTSZoetis Inc.34.3 bn13.764.4%27.5%+2.3%−35% / −53%
ROIVRoivant Sciences Ltd.26.0 bn—-6.2%-3,535.0%−71.6%+73% / +277%
UTHRUnited Therapeutics Corporation25.8 bn21.519.3%41.6%+10.6%+24% / +151%
RPRXRoyalty Pharma plc25.8 bn37.68.5%32.1%+5.1%+66% / +145%
INSMInsmed Inc22.9 bn—-72.5%-39.9%+66.7%−50% / +317%
VTRSViatris Inc.21.7 bn—-23.6%-23.9%−3.0%+77% / +106%
ALNYAlnylam Pharmaceuticals, Inc.21.4 bn8.1126.6%52.8%+65.2%−65% / −5%
TGTXTg Therapeutics, Inc.9.4 bn22.5100.3%55.2%+87.3%+85% / +381%
BLRXBioLineRx Ltd4.9 bn—-12.8%-171.7%−95.9%−46% / −97%
BHCBausch Health Companies Inc.3.1 bn——-7.6%+6.7%+31% / +17%
SLSSELLAS Life Sciences Group, Inc.1.8 bn—-39.6%—−100.0%+451% / +852%
ANABAnaptysbio, Inc.1.4 bn11.5—82.4%+157.0%+71% / +404%
KURAKura Oncology, Inc.677.0 m—-167.7%-384.3%+25.2%−37% / −21%
DMACDiaMedica Therapeutics Inc.580.8 m—-114.6%—unavailable+25% / +341%
PHATPhathom Pharmaceuticals, Inc.461.7 m——-30.2%+216.9%−64% / −19%

1- and 3-year price returns: for SLS from daily closes (the same as the performance table), for the other companies from month-end closes.

olivLaw engine forecast

The world engine ran after the company's latest material disclosure. Probabilities are of TOUCHING a level within the horizon (not closing there) and sit next to the random walk (p_rw), the no-information benchmark.

The engine has no published run for this company yet.

Valuation scenarios (editable assumptions)

Illustrative scenarios

Scenarios are not available. input data missing

AI analysis

AI-generatedAI-generated analysis (Claude) from cited public sources; it may contain errors. Not investment advice. As of 27 Oct 2026 · Model: claude-haiku-5-5.

In brief

SELLAS Life Sciences Group is a late-stage biopharmaceutical company developing the GPS immunotherapy and the CDK9 inhibitor SLS009 for cancer, mainly acute myeloid leukemia. The company faces two key moments: the final analysis of the Phase 3 REGAL trial, triggered by the 80th event, and topline data from the Phase 2 SLS009 study, expected in the fourth quarter of 2026. As of June 30, 2026 it reported cash of $138.3 million 3.

SWOT

Strengths

  • The company has two candidates in advanced clinical studies and multiple regulatory designations, including orphan and Fast Track 1.
  • SLS009 Phase 2 results met all primary endpoints, and the FDA recommended extending the study to first-line AML 1.
  • Cash available at June 30, 2026 rose significantly from the prior year end, which supports continued programs 3.

Weaknesses

  • The company has no approved products and no product revenue, and losses have grown over time 13.
  • Dependence on a single pivotal study, REGAL, makes success hinge on an event-driven outcome that is hard to anticipate 1.
  • Operating expenses have risen as the company prepares for a possible license application, and new equity issuance could dilute shareholders 13.

Opportunities

  • A favorable REGAL result could open the path to a biologics license application for GPS in AML 13.
  • Preclinical data in pancreatic cancer resistant to RAS inhibitors could extend SLS009 into solid tumors 3.
  • The IMPACT-AML collaboration gives access to multiple European clinical sites, which could speed enrollment 1.

Threats

  • The final analysis depends on the number of deaths, and its timing may differ from current expectations 1.
  • An arbitration dispute with the Chinese partner over milestone payments could affect future receipts 1.
  • Competition in CDK9 inhibitors and WT1 immunotherapies could reduce potential share if rivals reach the market first 1.

Risks

  • REGAL trial outcomehigh

    The final analysis of the Phase 3 study is decisive for GPS, and an unfavorable result could halt the program 12.

  • Need for additional financinghigh

    The company expects rising expenses and may need new capital, which could dilute existing shareholders 13.

  • Dispute with the Chinese partnermedium

    The arbitration with 3D Medicines over milestone payments could delay or reduce receipts from the Greater China license 1.

  • Clinical timeline uncertaintymedium

    SLS009 results are expected in the fourth quarter of 2026, but delays could change the development plan 23.

  • Regulatory approval riskmedium

    Even with favorable designations, approval is not assured, and FDA requirements could change timing or the content of filings 1.

Investment thesis

What would need to be true (bull case)

  • If the REGAL analysis confirms a survival benefit, GPS could become a maintenance option for AML patients in complete remission 1.
  • SLS009 results in relapsed and refractory disease, with median survival above historical benchmarks, could support a first-line program 1.
  • Extension into pancreatic cancer could add a new direction if preclinical data hold up in clinical studies 3.

What would break the thesis

  • With no approved products and no revenue, the company's value rests entirely on clinical results that are not yet confirmed 1.
  • The need for funding could lead to significant dilution for shareholders if studies are delayed or fail 13.
  • The dispute with the Chinese partner and uncertainty over the event count could extend the timeline and reduce predictability 12.

What to watch

  • Reaching the 80th event in the REGAL study and announcement of the final analysisnext 10-Q
  • Topline data from the first-line Phase 2 SLS009 study in AMLQ4 2026
  • Trend in R&D and G&A spending and the need for additional capitalQ3 2026
  • Outcome of the arbitration with 3D Medicines over milestone payments2027

Products, market & competition

AI-generatedAI-generated analysis (Claude) from cited public sources; it may contain errors. Not investment advice. As of 27 Oct 2026 · Model: claude-haiku-5-5.

The business

SELLAS is a late-stage clinical biopharmaceutical company focused on novel therapies for a broad range of cancer indications 1. It has no approved products and has not generated product revenue to date, and it has incurred operating losses in every reporting period since inception 1. Its strategy is to develop several oncology candidates, with acute myeloid leukemia as the lead indication for both GPS and SLS009 1.

The lead candidate, galinpepimut-S (GPS), is a peptide immunotherapy targeting the WT1 antigen, licensed from Memorial Sloan Kettering Cancer Center 1. The Phase 3 REGAL study evaluates GPS monotherapy in AML patients in maintenance after second complete remission, with overall survival as the primary endpoint 1. The company says final results will follow the 80th event, after which a Biologics License Application could be considered 23.

The second candidate, SLS009 (tambiciclib), is a highly selective CDK9 inhibitor licensed from GenFleet for all uses worldwide outside Greater China 1. In the relapsed or refractory Phase 2 study, the overall response rate was 33% across all cohorts 1. The first-line Phase 2 study had 28 patients enrolled as of August 10, 2026, with topline data expected in the fourth quarter of 2026 23.

Segments

GPS (galinpepimut-S)

GPS is the company's core immunotherapy, with the Phase 3 REGAL study in AML as the main driver of value. The pooled event count reached 78 as of May 11, 2026, and the final analysis will follow the 80th event 2. The China license with 3D Medicines includes payments already received and future milestones that remain in arbitration 1.

SLS009 (tambiciclib)

SLS009 is the second clinical program, with a selectivity profile that could reduce toxicity compared with older CDK9 inhibitors 1. The first-line Phase 2 study is ongoing, and the company has extended European access through the IMPACT-AML network 12. Recent preclinical data suggest activity in pancreatic cancer resistant to RAS inhibitors 3.

Market context

The target market is oncology therapies for AML and other hematologic and solid cancers, where WT1 is overexpressed in many tumor types 1. The size of the market and reimbursement prospects are not quantified in the sources and depend on study results and future approvals 1.

Market access depends on regulatory approvals in each territory, accepted prices and reimbursement by third-party payors, factors the company describes as uncertain 1. With no product revenue yet, any sales estimate remains hypothetical 1.

Trends

  • Progress of REGAL eventsmixed

    The event count needed for the final analysis is advancing, which could accelerate the path to a possible license application if results are favorable 23. The exact timing is hard to predict because the analysis is event driven 1.

  • Regulatory acceleration designationstailwind

    GPS and SLS009 have received orphan, Fast Track and rare pediatric disease designations, which could ease development and review 1. These do not guarantee approval but may shorten certain steps 1.

  • High capital needsheadwind

    The company expects growing losses as trial and manufacturing costs rise, and additional financing could be needed if results are delayed 1. Higher R&D spending in the first half of 2026 points the same way 3.

  • Interest in AML with adverse mutationstailwind

    Data on ASXL1 mutation and other molecular profiles suggest a niche of patients with poor prognosis where new therapies could have impact 13. This scientific interest may support academic collaborations but remains at an early or preclinical stage 3.

Competitive position

The sources do not describe direct competitors by name, but they reference AML standards of care, such as the venetoclax and azacitidine combination, as the comparison point for SLS009 1. Competition also extends to next-generation CDK9 inhibitors in clinical development 1.

In WT1 immunotherapy and CDK9 inhibition, the sources indicate several developers in clinical studies, and SLS009's differentiation rests on selectivity and reduced toxicity 1. Relative positioning will depend on future data from ongoing studies 1.

  • Other next-generation CDK9 inhibitors

    Cited in the source as in clinical development, without named identification in the analyzed texts.

  • Venetoclax and azacitidine standard therapy

    Reference treatment in AML, to which SLS009 is added in the Phase 2 study 1.

  • Best available treatment (BAT)

    Comparator arm of the REGAL study, chosen by investigators under local practice 1.

  • Developers of WT1 immunotherapies and peptide vaccines

    Candidates in clinical studies for hematologic and solid indications, identified generically in the source 1.

News & filings

SEC filings

Sources

  1. [1] Form 10-K, fiscal year ended 2025-12-31 · SEC / SELLAS Life Sciences Group, Inc. · 19 Mar 2026
  2. [2] Form 10-Q, quarter ended 2026-06-30 · SEC / SELLAS Life Sciences Group, Inc. · 11 Aug 2026
  3. [3] Form 8-K, results release (exhibit 99.1) · SEC / SELLAS Life Sciences Group, Inc. · 11 Aug 2026

Figures computed by olivLaw from SEC filings and closing prices; the qualitative analysis is AI-generated from cited sources. Not investment advice.