Panbela Therapeutics, Inc. · OTC:PBLA
Panbela Therapeutics — Investor Presentation (August 2023)
38 slides from Panbela Therapeutics's investor presentation, Aug 17, 2023
Slide 1: Investor Presentation August 2023
Investor Presentation August 2023 Last modified August 17, 2023 Panbela Therapeutics
Slide 2: Disclaimers
Disclaimers Certain statements in this presentation are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 and are provided under the protection of the safe harbor for forward-looking statements provided by that Act. Forward-looking statements are b
Slide 3: Company Presents A Unique Opportunity: Multi-Targeted Approach to Reset Dysregulated Biology
Company Presents A Unique Opportunity: Multi-Targeted Approach to Reset Dysregulated Biology Scientific focus on polyamines, key regulators of normal biology altered in many disease states 1 Multiple near term inflection points CPP acquisition completed in 2022 to create complementary, multiprod
Slide 4: Highly Experienced Management Team with Proven Track Record
Highly Experienced Management Team with Proven Track Record Proven orphan and oncology drug discovery, development and commercialization expertise Dr. Jennifer Simpson Sue Horvath Dr. Elizabeth Bruckheimer Chief Executive Officer Chief Financial Officer VP, Chief Scientific Officer 15+ Years 15+ Yea
Slide 5: Dysregulation of the Polyamine Pathway Leads to Disease
Dysregulation of the Polyamine Pathway Leads to Disease Polyamine Dysregulation in Disease Cancer Pancreatic ductal adenocarcinoma Autoimmune Diseases Familial Adenomatous Polyposis (FAP) Recent Onset Type 1 Diabetes Colorectal Ovarian STK11 Mutant NSCLC Neuroblastoma Initial focus on oncology and a
Slide 6: Pipeline May Address Multiple Unmet Needs
Pipeline May Address Multiple Unmet Needs Preclinical IND Ready Phase I Phase II Phase III Milestones Phase III Enrolling; Interim PDA (First Line Metastatic) Analysis Early 2024 (ivospemin) (Injection) SBP-101 PDA Neoadjuvant Phase II Ready – Open 1H 2023 Ovarian Phase I Ready – Open 2H 2023
Slide 7: Potential Market Opportunity for Lead Programs
Potential Market Opportunity for Lead Programs Pancreatic Cancer FAP Colorectal Cancer Ovarian Cancer Incidence of Incidence of Incidence of Incidence of 1L Metastatic Pancreatic Cancer FAP Colorectal Cancer Ovarian Cancer 57K in US ~30K in US ~150K in US ~22K in US ~190K in EU ~50K in EU ~340K in E
Slide 8: Complementary Pharmacotherapies Targeting Dysregulation
Complementary Pharmacotherapies Targeting Dysregulation Pipeline Objective Combined pipeline pharmacotherapies hit different targets in the polyamine pathway The objective of Panbela’s pipeline is the utilization of pharmacotherapies to reduce/normalize increased disease- CPP-1X-T & CPP-1X-S associa
Slide 9: Ivospemin (SBP-101)
Ivospemin (SBP-101) Panbela Therapeutics 9
Slide 10: Preliminary Efficacy of ivospemin (SBP-101) + Gemcitabine/Nab-paclitaxel in First-Line Metastatic PDA
Preliminary Efficacy of ivospemin (SBP-101) + Gemcitabine/Nab-paclitaxel in First-Line Metastatic Pancreatic Ductal Adenocarcinoma BEST OVERALL RESPONSE Overall Disease CR PR SD PD Response Control Ivospemin (0.40 mg/kg) + G/A* (Ph Ia COHORT 2) 0 5 (71%) 2 (29%) 0 5/7 (71%) 5/7 (71%) n=7 ivospemin (
Slide 11: Efficacy Comparison of ivospemin (SBP-101) + Gemcitabine/Nab-paclitaxel vs. Standard of Care
Efficacy Comparison of ivospemin (SBP-101) + Gemcitabine/Nab-paclitaxel vs. Standard of Care Treatment OS PFS ORR DCR PD CL-SBP-101-031 14.6 months 6.5 months 48.3% 82.8% 4.8% FOLFIRINOX2 11.1 months 6.4 months 31.6% 70.2% 15.2% Modified FOLFIRINOX3 10.2 months 6.1 months 35.1% 86.5% 13.5% NALIRIFOX
Slide 12: Ivospemin (SBP-101) + Gemcitabine/Nab-paclitaxel Overall Survival
Ivospemin (SBP-101) + Gemcitabine/Nab-paclitaxel Overall Survival* Cohort 2 N=7: 2 patients with long term survival. • One still alive at 33.1 months • One deceased at 30.3 months Cohort 4+1b = 6 patients still alive • One complete response (Recist) • One clinical complete response (no detectable tu
Slide 13: Safety Results
Ivospemin (SBP-101) + Gemcitabine/Nab-paclitaxel Demonstrated a Similar Safety Profile to Gemcitabine/Nab-paclitaxel in First-Line Metastatic Pancreatic Ductal Adenocarcinoma Safety Results SBP- Grade ≥3 AEs of Special Interest N G+A %** Grade ≥3 adverse events attributable to any study medication,
Slide 14: Phase III Pancreatic Cancer Trial in Previously Untreated Metastatic PDA
Phase III Pancreatic Cancer Trial in Subjects Previously Untreated for Metastatic Pancreatic Ductal Adenocarcinoma A Randomized, Double-Blind, Placebo Controlled Study of Nab-Paclitaxel and Gemcitabine with or Without ivospemin (SBP-101) OS-Overall Survival PFS-Progression Free Survival ORR – Overal
Slide 15: FLYNPOVI: A Combination of CPP-1X and Sulindac
FLYNPOVI: A Combination of CPP-1X and Sulindac Panbela Therapeutics 15
Slide 16: Lead Product Opportunity – CPP-1X and Sulindac (Flynpovi)
Lead Product Opportunity – CPP-1X and Sulindac (Flynpovi) Familial Adenomatous Key Information: Polyposis (FAP) No approved FAP drugs on the market A genetic disease Target Physicians: Gastroenterologists caused by APC US-only potential revenue at market share of 35%-60% mutations where colo
Slide 17: FAP-310 Trial: Time to Delay FAP-related Event Endpoint
FAP-310 Trial: “Time to Delay FAP-related Event” Endpoint CPP FAP 310 global study 150 Patients Required (171 Patients Enrolled) Time to delay FAP-related events Composite Endpoint including surgeries, polyp removal, and 1:1:1 Randomization upper GI scoring system (“Spigelman”)*; based on FDA/EMA re
Slide 18: No Lower GI Surgeries for Flynpovi Combination
No Lower GI Surgeries for Flynpovi Combination Event Rate Distribution of FAP-Related Surgery Events in Lower GI Surgery Events ES Combo Eflornithine Sulindac Overall (N=56) (N=57) (N=58) (N=171) Need colectomy 0 3 4 7 Need proctectomy 0 1 1 2 Need pouch resection 0 4 1 5 Total Surgical Events 0 8 6
Slide 19: Flynpovi Combination Delays Need for Lower GI Surgery
Flynpovi Combination Delays Need for Lower GI Surgery Delay in Lower GI Surgery Events (Vertical hashmarks “|” denote when patient comes off study) 100 Subjects Event Free (%) 90 80 Treatment Groups 70 ES Sulindac 60 Eflornithine 50 0 6 12 18 24 30 36 42 48 Time from Randomization Date to FAP-relate
Slide 20: Rationale for Efficacy of Flynpovi in the Lower Gastrointestinal Tract of FAP Patients
Rationale for Efficacy of Flynpovi in the Lower Gastrointestinal Tract of FAP Patients Microbiome Diet MYC Growth/Tissue APC MAD1 ODC Put Polyamines Repair/Neoplasia K-RAS • Polyamines drive uncontrolled growth, polyposis, and cancer. • Polyamines can by synthesized but also derived from the diet an
Slide 21: High Concentrations of the Microbiota Contribute to the Impact of Polyamines in The LGI
High Concentrations of the Microbiota Contribute to the Impact of Polyamines in The LGI The microbiota increases steadily along the gastrointestinal tract. ◦ Small numbers in the stomach but very high concentrations in the colon. ◦ Areas of the LGI contain up to nine orders of magnitude (109) more
Slide 22: Adverse Events of Special Interest
Adverse Events of Special Interest Flynpovi (Eflornithine + Sulindac Sulindac Eflornithine Adverse Events of Special Interest Combination) N=57 N=56 N=56 Subjects (%) Subjects (%) Subjects (%) Anemia 1 (1.8) 5 (8.8) 2 (3.6) Myelosuppression 0 1 (1.8) 0 Thrombocytopenia 0 3 (5.3) 1 (1.8) Cardiovascul
Slide 23: Basis for FDA Complete Response Letter
Basis for FDA Complete Response Letter Clinical Single pivotal study efficacy was based on exploratory post-hoc analysis using a modified primary endpoint in a subgroup of the intent-to treat population o Asked to perform a new study focused on FAP patients with an intact lower- GI tract which s
Slide 24: Summary of Approach to Approval
Summary of Approach to Approval Strong Results in the Lower GI Focus on Lower GI: statistically significant p-values and hazard ratios for clinically meaningful surgical endpoints—emphasized by regulators—in Phase III pivotal trial Expected safety profile over 2-4 years of daily dosing in Phase
Slide 25: Polyamines & Immune Dysregulation
Polyamines & Immune Dysregulation Panbela Therapeutics 25
Slide 26: Role of Polyamines in Immune Dysregulation
Role of Polyamines in Immune Dysregulation Immune systems require multiple soluble and cellular components, including polyamines, for a normal immune function High levels of polyamines are present in tumor cells and in autoreactive B- and T-cells in autoimmune diseases Dysregulation of polyami
Slide 27: Potential Role of Polyamines in DLBCL CAR-T Therapy
Potential Role of Polyamines in Diffuse Large B Cell Lymphoma (DLBCL) CAR-T Therapy Polyamine metabolism upregulation through oncogenic MYC is a common metabolic irregularity in aggressive cancers, including lymphomas. MYC overexpression in relapsed/refractory DLBCL prior to CAR-T cell therapy n
Slide 28: Rationale for Eflornithine/anti-PD-1 Combination
Rationale for Eflornithine/anti-PD-1 Combination Targeting Ornithine decarboxylase (ODC) using eflornithine unmasks antitumor T cell immune response by weakening of tumor-induced immune suppression that is mediated by Myeloid- Derived Tumor Suppressor Cells (MDSCs). The addition of anti-PD-1 pre
Slide 29: CPP-1X-S
CPP-1X-S Panbela Therapeutics 29
Slide 30: Rationale for CPP-1X-S (Eflornithine Sachets) in STK11 Mutant NSCLC
Rationale for CPP-1X-S (Eflornithine Sachets) in STK11 Mutant NSCLC In preclinical tumor models, eflornithine treatment improves anti-PD-1 efficacy by: Increasing tumor-specific cytotoxic T-cell populations Increasing expression of PD-1 on tumor-associated CD8+ T cells ~10% of NSCLC cancers
Slide 31: STK11 Mutant NSCLC Investigator-Initiated Trial
STK11 Mutant NSCLC Investigator-Initiated Trial Collaborating with investigators at Moffitt Cancer Center on Phase I/II trial: “Targeting Ornithine Decarboxylase as an Immunotherapeutic Target in STK11 (LKB1) Pathway-Deficient Non-Small Cell Lung Cancer” Patient Population Phase I Phase II Stage I
Slide 32: Business Overview
Business Overview Panbela Therapeutics 32
Slide 33: Barriers to Entry – Flynpovi/CPP-1X
Barriers to Entry – Flynpovi/CPP-1X Orphan status (7 years exclusivity US; 10 years exclusivity EU) for CPP-1X ◦ Granted in US and EU for FAP ◦ Granted in US for Gastric cancer and Pancreatic cancer Pharmaceutical Composition Patent ◦ Fixed dose combination eflornithine + sulindac ◦ Broadly nati
Slide 34: Barriers to Entry – ivospemin (SBP-101)
Barriers to Entry – ivospemin (SBP-101) Orphan status (7 for years exclusivity US; 10 years exclusivity EU) for SPB-101 ◦ Granted in US and EU for pancreatic cancer METHODS FOR PRODUCING (6S,15S)-3,8,13,18-TETRAAZAICOSANE-6,15-DIOL ◦ PCT application filed January 29, 2019 ◦ Granted in United Sta
Slide 35: Summary of Milestones
Summary of Milestones 1H 2023 Open- Phase I NSCLC Trial Open- Neoadjuvant Pancreatic Cancer Trial Open – Phase II Type I onset Diabetes Trial Futility Analysis Phase III Colon Cancer Risk Reduction Trial (PACES) Publication of Phase I Type I early onset Diabetes Data Publication of Final
Slide 36: Financial Position - Cash and Debt (unaudited)
Financial Position - Cash and Debt (unaudited) Cash and Debt Cash at 6/30/2023 7,205,000 Debt at 6/30/2023 Current (due 1/31/2024) 1,000,000 Non-current 4,194,000 Total 5,194,000 (1) Proforma Cash consists of 12/31/22 balance plus disclosed equity transactions subsequent to 12/31/22. Does not reflec
Slide 37: Capital Stock (unaudited)
Capital Stock (unaudited) Panbela Common Stock at 6/30/2023 2,612,038 Shares issued in exchange for warrants 7/1/2023 to 8/10/2023 84,744 Prefunded warrants exercised 7/1/2023 to 8/10/2023 260,954 Total Proforma Common stock outstanding 2,957,736 Shares reserved for Options (WAE = $1,071.08) at 6/30
Slide 38: Summary: Broad, late-stage de-risked pipeline opportunities
Summary: Unique Scientific Approach: Resetting dysregulation via polyamine pathway Broad, late-stage de-risked pipeline opportunities Multiple partnerships supporting development programs Significant market potential Multiple data readouts expected Experienced management team Panbela Therapeutics 38
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