First patients dosed in budoprutug PrisMN Phase 2 trial in pMN, with initial data expected second half 2026 Dosing ongoing in budoprutug Phase 1b/2a trial in ITP and Phase 1b trial in SLE; achieved regulatory clearance for SLE IND in China First patients dosed in CLYM116 Phase 1 healthy volunteer study Anticipating a data-rich 2026, with initial readouts from all ongoing budoprutug and CLYM116 studies Strong financial position with cash runway expected into 2028 WELLESLEY HILLS, Mass., Jan. 08, 2026 (GLOB ...

Climb Bio Inc. (NASDAQ:CLYM) is one of the best biotech penny stocks to buy according to analysts. On December 18, H.C. Wainwright analyst Raghuram Selvaraju raised the firm’s price target on Climb Bio to $11 from $9, while maintaining a Buy rating on the shares. This sentiment was announced as the firm believes that Budoprutug’s progress across clinical tracks will culminate in the release of data readouts during 2026. The company is currently focused on two primary assets: Budoprutug, which is an anti- ...

Core Insights - Climb Bio Inc. (CLYM) is set for a data-rich year in 2026, with study results from its key programs expected to influence its strategic direction and future development phases [1] Drug Candidates - Budoprutug is an anti-CD19 monoclonal antibody designed for potent and durable B cell depletion, with both intravenous (IV) and subcutaneous (SC) administration options. It is being investigated for primary membranous nephropathy, immune thrombocytopenia, and systemic lupus erythematosus [2] - CLYM116 is a novel anti-APRIL monoclonal antibody aimed at promoting the degradation of APRIL, targeting B-cell-mediated diseases such as systemic lupus erythematosus, myasthenia gravis, and IgA nephropathy [3] Ongoing Trials & Upcoming Catalysts - A phase 2 study named PrisMN is evaluating Budoprutug's safety and efficacy in adult subjects with primary membranous nephropathy, enrolling 45 subjects and expected to complete in 2027 [4] - A phase 1b/2a study is assessing Budoprutug in immune thrombocytopenia, with initial efficacy data anticipated in the second half of 2026 [6] - A phase 1b study is evaluating Budoprutug in systemic lupus erythematosus, with preliminary efficacy data expected in the second half of 2026 [8] - A phase 1 study for the SC formulation of Budoprutug in healthy volunteers is ongoing, with initial data expected in the first half of 2026 [10] - Regulatory clearance for a phase 1 trial of CLYM116 has been obtained, with dosing expected to start by the end of 2025 and initial data anticipated mid-2026 [10] Financial Position - As of September 30, 2025, the company reported cash, cash equivalents, and marketable securities totaling $175.8 million, which is sufficient to fund operations through 2027 [11] Company Background - Climb Bio, formerly Eliem Therapeutics, went public on August 10, 2021, under the ticker symbol "ELYM" at an IPO price of $12.50 per share. The company rebranded to Climb Bio, Inc. and changed its ticker symbol to "CLYM" on October 3, 2024, reflecting a strategic focus on immune-mediated diseases [12] - CLYM's stock has traded between $1.05 and $3.25 over the past year, closing at $3.00 on December 12, 2025, representing a 30.43% increase [13]

Core Insights - Climb Bio, Inc. has initiated a Phase 2 trial of budoprutug for Primary Membranous Nephropathy (pMN) and expects to advance its clinical programs significantly in 2026 [1][2] - The company has strengthened its leadership team with key appointments to enhance operational capabilities [1][11] - Financial results indicate a cash position that is expected to sustain operations through 2027, allowing for continued development of its clinical pipeline [1][8] Budoprutug Program Updates - The Phase 2 trial, named 'PrisMN,' has been initiated in multiple countries, focusing on safety, pharmacokinetics, and preliminary efficacy [5] - A Phase 1 trial of a subcutaneous formulation of budoprutug is ongoing, with initial data expected in H1 2026 [1][5] - Ongoing trials for budoprutug in Immune Thrombocytopenia (ITP) and Systemic Lupus Erythematosus (SLE) are expected to yield initial data in H2 2026 [1][5] CLYM116 Program Updates - CLYM116, targeting the APRIL pathway for IgA nephropathy, has received regulatory clearance for a Phase 1 trial, with dosing anticipated by year-end 2025 [1][6] - Initial data from the CLYM116 trial is expected in mid-2026, following a recent R&D Spotlight Webcast that highlighted its differentiation from first-generation therapies [6][2] Financial Performance - As of September 30, 2025, the company reported cash, cash equivalents, and marketable securities totaling $175.8 million, expected to fund operations through 2027 [1][11] - Research and Development (R&D) expenses for Q3 2025 were $9.1 million, an increase from $6.2 million in Q3 2024, while General and Administrative (G&A) expenses were $5.8 million, slightly up from $5.5 million in the prior year [8][11]

Core Insights - Climb Bio, Inc. has appointed Adam Villa as Senior Vice President of Technical Operations and Ashley Jones as Senior Vice President of People & Workforce Strategy, enhancing its leadership team during a critical growth phase [2][4]. Leadership Appointments - Adam Villa brings over 20 years of experience in biopharmaceutical development and manufacturing, with expertise in technical operations and clinical production scaling. His previous roles include Vice President of CMC at Generation Bio and leadership positions at CRISPR Therapeutics and Biogen [2][3]. - Ashley Jones has nearly 20 years of experience in the biotechnology sector, previously founding Cultivate Co. and holding leadership roles at Ananke Therapeutics, Imara, and SQZ Biotechnologies. She is recognized for building high-performing organizations and fostering collaborative cultures [3][2]. Inducement Equity Awards - Climb Bio granted inducement equity awards to the new executives, consisting of non-statutory stock options to purchase up to 360,000 shares of common stock at an exercise price of $2.32 per share. The options have a ten-year term and vest over four years [4]. Company Overview - Climb Bio, Inc. is a clinical-stage biotechnology company focused on developing therapeutics for immune-mediated diseases. Its pipeline includes budoprutug, an anti-CD19 monoclonal antibody, and CLYM116, an anti-APRIL monoclonal antibody for IgA nephropathy [5].

Core Insights - Climb Bio, Inc. is advancing two monoclonal antibodies, CLYM116 for IgA nephropathy and budoprutug for primary membranous nephropathy, with promising preclinical and clinical data to be presented at the 2025 ASN Kidney Week [1][2][3] Group 1: CLYM116 Development - CLYM116 is a novel anti-APRIL monoclonal antibody designed to treat IgA nephropathy, showing favorable pharmacokinetic and pharmacodynamic profiles in preclinical models [1][2] - The antibody promotes APRIL degradation and enhances antibody recycling, leading to significant reductions in IgA levels [2][9] - CLYM116 employs a pH-dependent binding mechanism, potentially allowing for less frequent dosing and a favorable safety profile [9] Group 2: Budoprutug Clinical Data - Budoprutug is an anti-CD19 monoclonal antibody targeting B-cell mediated diseases, with long-term follow-up data from a Phase 1b trial indicating sustained control of proteinuria for up to three years in patients with primary membranous nephropathy [3][7] - In the trial, four patients received up to four doses of budoprutug, with three patients not requiring further immunosuppressive treatment [3] - No significant treatment-related adverse events were reported, supporting further investigation of budoprutug as a potential disease-modifying therapy [3][8] Group 3: Presentation Details - Climb Bio will present CLYM116 data at ASN Kidney Week on November 8, 2025, with a poster titled "Development and Characterization of CLYM116" [5] - The abstract for budoprutug's long-term remission data in primary membranous nephropathy is also available, highlighting its clinical significance [5][4]

Core Viewpoint - Climb Bio, Inc. has appointed Susan Altschuller, Ph.D., MBA, as Chief Financial Officer, enhancing its leadership team to support the advancement of its therapeutic pipeline for immune-mediated diseases [1][2][3] Company Leadership - Susan Altschuller brings over 20 years of strategic and financial leadership experience in the biopharmaceutical sector, having previously served as CFO at Cerevel Therapeutics and ImmunoGen [2][3] - Her expertise includes financial strategy, capital allocation, and operational execution, which will be valuable as Climb Bio progresses with its clinical programs [2][3] Clinical Pipeline - Climb Bio is advancing two key programs: budoprutug, an anti-CD19 monoclonal antibody, and CLYM116, an anti-APRIL monoclonal antibody for IgA nephropathy [4] - The company anticipates generating significant clinical data from both programs in the upcoming year, which will inform future strategies [2][3] Inducement Equity Award - In connection with her appointment, Climb Bio granted Dr. Altschuller an inducement equity award consisting of a non-statutory stock option to purchase up to 600,000 shares of common stock, with a ten-year term and a four-year vesting schedule [3]

CLYM116 & IgAN Opportunity - Climb Bio's mission is to deliver high impact, disease-modifying medicines for individuals living with immune-mediated diseases[5] - CLYM116 is an anti-APRIL monoclonal antibody being developed for IgA Nephropathy (IgAN)[8, 48] - Climb Bio has worldwide rights to CLYM116 outside Greater China, partnering with Beijing Mabworks Biotech Co, Ltd[9, 11] - Phase 1 initiation of CLYM116 is expected in Q4 2025, with initial data anticipated mid-year 2026[8, 15, 16, 106] IgAN Market & Treatment Landscape - IgAN represents a significant market opportunity estimated at ~$10-20 billion in the US, with most patients requiring lifelong treatment[12, 105] - KDIGO 2025 guidelines recommend treatment initiation for patients with proteinuria >=05 g/day, representing approximately 60-75% of patients[13] - The FDA recognizes the need for surrogate outcomes, such as improvement in proteinuria, in IgAN studies for accelerated approval[29] CLYM116 Differentiated Profile - CLYM116 is the only known "sweeper" anti-APRIL mAb in development, designed for improved activity, less frequent dosing, and a favorable safety profile[10, 57, 103, 106] - Preclinical NHP data demonstrated potential for deep and durable IgA suppression, with >70% maximal reduction after a single 6 mg/kg SC dose, and a ~2-3x longer half-life compared to sibeprenlimab[16, 74, 84, 89, 90, 104] - In NHPs, CLYM116 SC demonstrated high bioavailability of ~85% and favorable tolerability, supporting potential for convenient, at-home dosing[81]

Core Insights - Climb Bio, Inc. announced promising preclinical data for CLYM116, an anti-APRIL monoclonal antibody, showing deeper IgA reduction and a longer half-life compared to the first-generation antibody sibeprenlimab [1][3][4] Company Developments - CLYM116 is set to enter a Phase 1 trial in healthy volunteers, expected to begin in Q4 2025, with initial biomarker and dosing interval data anticipated by mid-2026 [1][5][7] - The company is hosting a virtual investor event on September 29, 2025, featuring nephrologist Craig E. Gordon, who has extensive experience in treating IgA nephropathy [2][3] Product Profile - CLYM116 is characterized as a "sweeper" anti-APRIL monoclonal antibody, demonstrating a subcutaneous formulation with high bioavailability (~85%) and a favorable tolerability profile [7][10] - The antibody exhibits a 2-3 times longer half-life compared to sibeprenlimab and achieves over 70% maximal reduction in IgA after a single administration at equivalent doses [7][10] Market Opportunity - IgA nephropathy (IgAN) represents a significant market opportunity, estimated at $10-20 billion in the U.S. alone, with a high unmet need for effective treatments [6][12] - The updated KDIGO 2025 guidelines emphasize the need for more active management of IgAN, potentially expanding the market opportunity for CLYM116 [3][12] Clinical Context - IgAN is the most common primary glomerular disease worldwide, affecting approximately 170,000 patients in the U.S. and typically requiring lifelong management [12] - The KDIGO guidelines recommend stricter proteinuria control and highlight the importance of reducing pathogenic IgA, positioning anti-APRIL therapy as a core treatment approach for IgAN [12]

Climb Bio Conference Call Summary Company Overview - **Company Name**: Climb Bio - **Focus**: RNI (Receptor-Negative Immunology) with a focus on developing therapies for B-cell mediated diseases - **Key Programs**: - CD19 B-cell depleting therapy (Budo) - CLYM116, an anti-APRIL antibody - **Company Age**: Approximately 12 months since rebranding from Ellium Therapeutics [4][6] Key Points and Arguments Company Strategy and Differentiation - Climb Bio aims to leverage recent advancements in understanding B-cell mediated diseases to develop therapies that allow for drug-free remission [7] - The company is focused on scalable therapies using monoclonal antibodies rather than complex and costly cell therapies like CAR-T [9] - The strategy includes prioritizing indications with high unmet needs and substantial commercial potential [11] Product Pipeline - **Lead Asset**: Budo (anti-CD19 monoclonal antibody) - Targeting CD19 is seen as optimal due to its expression across various B-cell stages and its ability to deplete auto-reactive B-cells [13][14] - Budo is differentiated from existing CD19 therapies by its high affinity and potential for subcutaneous administration [15][16] - **Second Asset**: CLYM116 (anti-APRIL antibody) - Unique mechanism of action that degrades APRIL, potentially leading to increased efficacy and reduced treatment burden [46] Clinical Development Insights - Budo is currently under investigation for primary membranous nephropathy (PMN) and immune thrombocytopenia (ITP) [29][42] - Early data from PMN trials showed promising results with complete B-cell depletion and significant proteinuria reduction [34] - The company plans to initiate a phase 2 study for Budo in the second half of 2025, guided by insights from the phase 1b study [36][40] Market Opportunity - There is a significant unmet need in PMN, with no approved therapies currently available, presenting a substantial market opportunity [31] - Climb Bio is also exploring indications in IgE-mediated diseases, single organ autoimmunity, and complex systemic diseases, with a focus on lupus [24][27] Biomarker Strategy - Biomarkers are central to Climb Bio's development strategy, particularly B-cell depletion and autoantibody reductions, which are expected to correlate with clinical outcomes [22][23] Future Outlook - Key value-creating accomplishments anticipated over the next year include successful execution of clinical studies, differentiation of their products, and strategic indication selection [48] Additional Important Content - The company was formed through a shell company acquisition, which has implications for its market positioning and investor awareness [5] - The leadership team has extensive experience in both large pharma and biotech, enhancing the company's strategic capabilities [2][3] This summary encapsulates the critical insights and strategic direction of Climb Bio as discussed during the conference call, highlighting its innovative approach to addressing unmet medical needs in the field of immunology.