NASDAQ
13 days, 9 hours ago 
SPRO
Spero Therapeutics, INC
8-K: Spero Therapeutics and GSK Announce Pivotal Phase 3 Trial for Oral cUTI Treatment Stopped Early for Efficacy
Spero Therapeutics and its partner GSK announced that their pivotal Phase 3 PIVOT-PO trial for tebipenem HBr, an investigational oral treatment for complicated urinary tract infections, met its primary endpoint and was stopped early due to efficacy, paving the way for a planned FDA filing in the second half of 2025.
Better than expected
 

NASDAQ
28 days, 0 hours ago 
SPRO
Spero Therapeutics, INC
8-K: Spero Therapeutics Announces Q1 2025 Results and Business Update; Tebipenem HBr Phase 3 Interim Analysis Expected in Q2
Spero Therapeutics reports Q1 2025 financial results and provides a business update, highlighting the upcoming interim analysis of the Phase 3 PIVOT-PO trial for tebipenem HBr.
Worse than expected
 

NASDAQ
28 days, 0 hours ago 
SPRO
Spero Therapeutics, INC
10-Q: Spero Therapeutics Reports Q1 2025 Results, Navigates Financial Uncertainty
Spero Therapeutics announces its Q1 2025 financial results, highlighting ongoing clinical development of tebipenem HBr and addressing concerns about its ability to continue as a going concern.
Capital raise
 
Worse than expected
 

NASDAQ
34 days, 21 hours ago 
SPRO
Spero Therapeutics, INC
Form 4: Spero Therapeutics Executive Esther Rajavelu Reports Acquisition of 185,000 Shares of Common Stock
Esther Rajavelu, a key executive at Spero Therapeutics, has reported acquiring 185,000 shares of common stock through restricted stock units.

NASDAQ
42 days, 20 hours ago 
SPRO
Spero Therapeutics, INC
DEFA14A: Spero Therapeutics Sets Date for 2025 Annual Meeting, Seeks Stockholder Votes on Key Proposals
Spero Therapeutics is holding its annual stockholder meeting on June 12, 2025, and is soliciting votes on the election of directors, ratification of the company's accounting firm, executive compensation, and an amendment to the stock incentive plan.

NASDAQ
43 days, 0 hours ago 
SPRO
Spero Therapeutics, INC
DEF: Spero Therapeutics Seeks Stockholder Approval for Amended Stock Incentive Plan and Elects New Directors at Upcoming Annual Meeting
Spero Therapeutics is holding its 2025 annual meeting virtually on June 12, 2025, to elect directors, ratify the selection of its accounting firm, approve executive compensation, and amend its stock incentive plan.

NASDAQ
43 days, 1 hours ago 
SPRO
Spero Therapeutics, INC
8-K: Spero Therapeutics Appoints Esther Rajavelu as President and CEO, Shukla Steps Down
Spero Therapeutics names Esther Rajavelu as President and CEO, effective May 2, 2025, succeeding Sath Shukla, who departs from the company and the Board of Directors.

NASDAQ
74 days, 23 hours ago 
SPRO
Spero Therapeutics, INC
8-K: Spero Therapeutics Announces Q4 and Full Year 2024 Results, Provides Business Update
Spero Therapeutics reports its Q4 and full year 2024 financial results, highlighting a net loss but anticipating sufficient cash runway into Q2 2026, while also providing updates on its clinical programs.
Worse than expected
 

NASDAQ
75 days, 0 hours ago 
SPRO
Spero Therapeutics, INC
10-K: Spero Therapeutics Navigates Financial Uncertainty, Suspends Key Programs in Strategic Shift
Spero Therapeutics' 10-K filing reveals a company in transition, suspending SPR720 and SPR206 development while focusing on tebipenem HBr amid financial challenges and a SEC investigation.
Worse than expected
 
Capital raise
 

NASDAQ
101 days, 22 hours ago 
SPRO
Spero Therapeutics, INC
8-K: Spero Therapeutics Receives Nasdaq Deficiency Notice for Minimum Bid Price
Spero Therapeutics has been notified by Nasdaq that its common stock price fell below the required $1.00 minimum, potentially leading to delisting if not rectified by August 25, 2025.
Worse than expected
 

NASDAQ
124 days, 19 hours ago 
SPRO
Spero Therapeutics, INC
Form 4: Spero Therapeutics COO Timothy Keutzer Reports Stock Transactions
Timothy Keutzer, Chief Operating Officer of Spero Therapeutics, reports the acquisition and disposal of common stock related to restricted stock units.

NASDAQ
124 days, 19 hours ago 
SPRO
Spero Therapeutics, INC
Form 4: Spero Therapeutics CFO Sells Shares to Cover Tax Obligations
Esther Rajavelu, CFO & CBO of Spero Therapeutics, sold shares of common stock to cover tax withholding obligations related to vesting restricted stock units.

NASDAQ
124 days, 19 hours ago 
SPRO
Spero Therapeutics, INC
Form 4: Spero Therapeutics CEO Sath Shukla Reports Stock Transactions
Sath Shukla, CEO of Spero Therapeutics, reports the acquisition and disposal of common stock related to restricted stock units (RSUs) vesting.

NASDAQ
124 days, 19 hours ago 
SPRO
Spero Therapeutics, INC
Form 4: Ankit Mahadevia Sells Spero Therapeutics Stock to Cover Tax Obligations
Director Ankit Mahadevia sold shares of Spero Therapeutics common stock to cover tax withholding obligations related to the vesting of Restricted Stock Units (RSUs).

NASDAQ
151 days, 9 hours ago 
SPRO
Spero Therapeutics, INC
8-K: Spero Therapeutics Announces Leadership Changes Amid SEC Investigation, Provides Clinical Trial Update
Spero Therapeutics has appointed an interim CEO and board chair following a Wells Notice from the SEC, while also reporting progress on its Phase 3 trial for Tebipenem HBr and providing a cash runway update.
Worse than expected
 

NASDAQ
208 days, 0 hours ago 
SPRO
Spero Therapeutics, INC
8-K: Spero Therapeutics Announces Q3 2024 Results, Provides Business Update
Spero Therapeutics reported its third quarter 2024 financial results and provided a business update, including progress on its tebipenem HBr trial and a cash runway into mid-2026.
Worse than expected
 

NASDAQ
208 days, 0 hours ago 
SPRO
Spero Therapeutics, INC
10-Q: Spero Therapeutics Suspends SPR720 Development, Restructures Operations Amidst Phase 2a Trial Setback
Spero Therapeutics halts development of SPR720 following disappointing interim Phase 2a results, leading to a strategic restructuring and workforce reduction.
Worse than expected
 
Delay expected
 
Capital raise
 

NASDAQ
210 days, 0 hours ago 
SPRO
Spero Therapeutics, INC
Form 4: Spero Therapeutics CFO Esther Rajavelu Sells Shares to Cover Tax Obligations
Esther Rajavelu, CFO & CBO of Spero Therapeutics, sold shares of common stock to cover tax withholding obligations related to vesting RSUs.

NASDAQ
224 days, 0 hours ago 
SPRO
Spero Therapeutics, INC
8-K: Spero Therapeutics Restructures Operations Following Disappointing Trial Results, Extends Cash Runway
Spero Therapeutics is restructuring its operations, including a 39% workforce reduction, after a Phase 2a trial for SPR720 failed to meet its primary endpoint, but the company has extended its cash runway into mid-2026.
Worse than expected
 

NASDAQ
273 days, 10 hours ago 
SPRO
Spero Therapeutics, INC
8-K: Spero Therapeutics Provides Pipeline Update, Highlights Progress on Key Clinical Programs
Spero Therapeutics updated its investor presentation, highlighting progress on its clinical programs for SPR720, tebipenem HBr, and SPR206, with key data readouts expected in the near term.

SPRO 
Spero Therapeutics, INC 
NASDAQ

8-K: Spero Therapeutics Announces Q3 2024 Results, Provides Business Update

Sentiment:
 Quarterly Report
 14 November 2024 4:05 PM

Spero Therapeutics reported its third quarter 2024 financial results and provided a business update, including progress on its tebipenem HBr trial and a cash runway into mid-2026.

Worse than expected
  The company reported a significantly larger net loss in Q3 2024 compared to Q3 2023.  The company's revenue decreased substantially in Q3 2024 compared to Q3 2023.  The company suspended the development of SPR720 after a Phase 2a trial failed to meet its primary endpoint. 

Summary
  • Spero Therapeutics announced its financial results for the third quarter ended September 30, 2024, reporting a net loss of $17.1 million, or ($0.32) per share.
  • The company's total revenue for the quarter was $13.5 million, a decrease from $25.5 million in the same period of 2023, primarily due to lower collaboration revenues.
  • Research and development expenses increased to $26.9 million, up from $16.4 million in the third quarter of 2023, driven by increased clinical trial expenses for the PIVOT-PO trial.
  • General and administrative expenses decreased to $5.2 million, compared to $5.7 million in the same period last year.
  • Spero's cash and cash equivalents stood at $76.3 million as of September 30, 2024.
  • The company expects its current cash, along with milestone payments and other non-dilutive funding, to fund operations into mid-2026.
  • The Phase 3 PIVOT-PO trial of tebipenem HBr is on track to complete enrollment in the second half of 2025, with a target enrollment of approximately 2,648 patients.
  • Development plans for SPR720 have been suspended following a Phase 2a trial that did not meet its primary endpoint and showed potential safety issues.
  • The company underwent a restructuring and reduction in force of approximately 39% following the suspension of SPR720 development.
Sentiment

Score: 4

Explanation: The document presents mixed signals. While the company is progressing with its tebipenem HBr trial and has extended its cash runway, the significant increase in net loss, decrease in revenue, and suspension of the SPR720 program are concerning. The restructuring and reduction in force also indicate financial challenges.

Positives
  • The Phase 3 PIVOT-PO trial of tebipenem HBr is progressing well and remains on track to complete enrollment in the second half of 2025.
  • Spero has extended its cash runway into mid-2026, providing financial stability for ongoing operations.
  • The company has streamlined operations following a restructuring and reduction in force.
  • Spero maintains its guidance to initiate the Phase 2 trial for SPR206, contingent on non-dilutive funding.
  • General and administrative expenses decreased year-over-year, indicating cost management.
Negatives
  • Spero reported a significant increase in net loss for Q3 2024 compared to Q3 2023, from $3.2 million to $17.1 million.
  • Total revenue decreased substantially in Q3 2024 compared to Q3 2023, from $25.5 million to $13.5 million.
  • Research and development expenses increased significantly year-over-year, from $16.4 million to $26.9 million.
  • The development program for SPR720 has been suspended due to the Phase 2a trial not meeting its primary endpoint and potential safety issues.
  • The company underwent a restructuring and reduction in force of approximately 39%.
Risks
  • The company's reliance on non-dilutive funding for the SPR206 program poses a risk if such funding is not secured.
  • The suspension of the SPR720 program could impact the company's pipeline and future growth prospects.
  • The company's increased net loss and decreased revenue raise concerns about its financial performance.
  • The company's dependence on third parties for manufacturing, development, and commercialization of its product candidates introduces potential risks.
  • The company's ability to achieve a successful commercial launch and market acceptance of tebipenem HBr is uncertain.
Future Outlook

Spero expects its current cash, along with milestone payments and other non-dilutive funding, to fund operations into mid-2026. The company also anticipates completing enrollment for the Phase 3 PIVOT-PO trial in the second half of 2025.

Management Comments
  • Sath Shukla, President and Chief Executive Officer of Spero, stated that enrollment in the Phase 3 tebipenem HBr trial is progressing well and the company is on track to complete enrollment in the second half of 2025.
  • Sath Shukla also mentioned that work on the Phase 2 ready SPR206 program continues, contingent on availability of non-dilutive funding.
  • Management noted that the extended cash runway and streamlined operations position the company well to achieve its goal of delivering new therapies to patients.
Industry Context

Spero Therapeutics operates in the biopharmaceutical industry, focusing on developing treatments for rare diseases and multi-drug resistant bacterial infections. The company's focus on novel antibiotics addresses a critical need in the healthcare sector, given the increasing prevalence of antibiotic-resistant infections. The suspension of the SPR720 program highlights the challenges and risks inherent in drug development, particularly in the area of infectious diseases.

Comparison to Industry Standards
  • Spero's increased R&D spending is typical for clinical-stage biopharmaceutical companies, especially those in late-stage trials like the PIVOT-PO trial. Companies like Nabriva Therapeutics and Achaogen, which also focused on antibiotic development, faced similar challenges with high R&D costs and clinical trial risks.
  • The decrease in revenue is not uncommon for companies that rely on collaboration agreements, as these revenues can fluctuate based on milestones and project timelines. Companies like Paratek Pharmaceuticals have experienced similar revenue variability.
  • The restructuring and reduction in force are common strategies for companies facing setbacks in clinical trials or financial constraints. Many biotech companies, such as Omeros Corporation, have implemented similar measures to extend their cash runway.
  • The suspension of the SPR720 program is a reminder of the high failure rate in drug development. Companies like Cempra have faced similar setbacks with their antibiotic programs, highlighting the risks associated with clinical trials and regulatory hurdles.
Stakeholder Impact
  • Shareholders may be concerned about the increased net loss and decreased revenue, as well as the suspension of the SPR720 program.
  • Employees were impacted by the restructuring and reduction in force.
  • Patients may benefit from the continued development of tebipenem HBr, but the suspension of SPR720 may delay potential treatment options.
  • Suppliers and creditors may be impacted by the company's financial performance and restructuring.
Next Steps
  • Spero will continue enrollment in the Phase 3 PIVOT-PO trial of tebipenem HBr.
  • The company will evaluate potential paths forward for the SPR720 program after analyzing the remaining data.
  • Spero will continue to seek non-dilutive funding to initiate the Phase 2 trial for SPR206.
  • The company will focus on streamlining operations and managing expenses to extend its cash runway.
Key Dates
  • September 30, 2024: End of the third quarter for which financial results are reported.
  • October 2024: Planned interim analysis of the Phase 2a study of SPR720 did not meet its primary endpoint, leading to suspension of the program and a company restructuring.
  • November 14, 2024: Date of the press release announcing Q3 2024 results and business update.
  • Second half of 2025: Expected completion of enrollment for the Phase 3 PIVOT-PO trial of tebipenem HBr.
  • Mid-2026: Spero's estimated cash runway extends into this period.
Keywords
Spero Therapeutics, Tebipenem HBr, SPR206, SPR720, Clinical Trial, Antibiotics, Infections, Phase 3, PIVOT-PO, Financial Results, Net Loss, Revenue, Cash Runway, Restructuring, Biopharmaceutical

SPRO 
Spero Therapeutics, INC 
NASDAQ
Sector: TBD
 
Filings with Classifications
Better than expected
28 May 2025 7:12 AM

Clinical Trial Results
  • The Phase 3 PIVOT-PO trial met its primary endpoint of non-inferiority.
  • The trial was stopped early for efficacy, indicating stronger-than-anticipated positive results.
  • No new safety concerns were identified, reinforcing the drug's safety profile.
Worse than expected
13 May 2025 4:49 PM

Earnings Release
  • The company reported a higher net loss compared to the same quarter last year.
  • The company reported lower revenue compared to the same quarter last year.
Capital raise
13 May 2025 4:15 PM

Quarterly Report
  • The company expects that it will need substantial additional funding.
  • The company will seek additional funding through public or private financings, debt financing, collaboration agreements, government grants or other sources.
  • The company has a universal shelf registration statement on Form S-3 with the SEC on March 15, 2024, which became effective on March 22, 2024, and pursuant to which the company registered for sale up to $300.0 million of any combination of its common stock, preferred stock, debt securities, warrants, rights and/or units from time to time and at prices and on terms that the company may determine, including up to $75.0 million of its common stock available for issuance pursuant to a Controlled Equity Offering Sales Agreement (the Sales Agreement) with Cantor Fitzgerald & Co. (Cantor).
Worse than expected
13 May 2025 4:15 PM

Quarterly Report
  • The company's net loss increased compared to the same period last year.
  • There is substantial doubt about the company's ability to continue as a going concern.
  • The company received a Nasdaq deficiency letter due to its stock price falling below $1.00.
Worse than expected
27 March 2025 5:19 PM

Earnings Release and Business Update
  • The company reported a net loss of $(20.9) million for Q4 2024 compared to a net income of $51.2 million for Q4 2023.
  • Total revenue for Q4 2024 was $15.0 million, compared with total revenue of $73.5 million for the fourth quarter of 2023.
  • The company discontinued the SPR206 program following a pipeline review in Q1 2025.
Worse than expected
27 March 2025 4:30 PM

Annual Results
  • The company's auditor has expressed substantial doubt about its ability to continue as a going concern.
  • The company has suspended development of SPR720 and discontinued SPR206.
  • The company is subject to an SEC investigation regarding certain public disclosures made in 2022.
Capital raise
27 March 2025 4:30 PM

Annual Results
  • Spero expects to need additional funding beyond the second quarter of 2026.
  • The company expects that additional funding will primarily consist of raising additional capital through some combination of equity or debt financings, potential new collaborations or additional grant funding.
Worse than expected
28 February 2025 5:11 PM

8-K Filing
  • The company's stock price falling below the Nasdaq minimum bid price requirement is worse than expected.
Worse than expected
10 January 2025 7:00 AM

Corporate Update
  • The company is facing an SEC investigation, which is a negative development.
  • The company has made interim leadership changes, which can create uncertainty.
  • The company has suspended development of SPR720 after a Phase 2a trial did not meet its primary endpoint and showed potential safety issues.
Worse than expected
14 November 2024 4:05 PM

Quarterly Report
  • The company reported a significantly larger net loss in Q3 2024 compared to Q3 2023.
  • The company's revenue decreased substantially in Q3 2024 compared to Q3 2023.
  • The company suspended the development of SPR720 after a Phase 2a trial failed to meet its primary endpoint.
Capital raise
14 November 2024 4:02 PM

Quarterly Report
  • The company expects to need additional funding beyond mid-2026, which will primarily consist of raising additional capital through some combination of equity or debt financings, potential new collaborations, additional grant funding and/or reducing cash expenditures.
  • The company has a universal shelf registration statement on Form S-3, which allows it to sell up to $300 million of securities, including up to $75 million of common stock through an at-the-market offering program.
Delay expected
14 November 2024 4:02 PM

Quarterly Report
  • The suspension of the SPR720 program will delay the development of a potential treatment for NTM-PD.
Worse than expected
14 November 2024 4:02 PM

Quarterly Report
  • The company suspended the development of SPR720 due to the Phase 2a trial not meeting its primary endpoint and potential safety issues.
Worse than expected
29 October 2024 5:01 PM

Business Update
  • The Phase 2a trial of SPR720 failed to meet its primary endpoint, leading to the suspension of the program.
  • The company is undergoing a restructuring and workforce reduction due to the disappointing trial results.
Worse than expected
5 August 2024 4:18 PM

Quarterly Report
  • The company reported a net loss of $30.5 million for the first half of 2024, indicating ongoing financial challenges.
Capital raise
5 August 2024 4:18 PM

Quarterly Report
  • The company expects to need additional funding beyond late 2025, which will primarily consist of raising additional capital through some combination of equity or debt financings, potential new collaborations, or additional grant funding.
  • The company has a universal shelf registration statement on Form S-3, which allows for the sale of up to $300 million of securities, including common stock.
Worse than expected
5 August 2024 4:13 PM

Quarterly Report
  • The company's net loss increased significantly compared to the same quarter last year, indicating worse than expected financial performance.
Capital raise
15 May 2024 4:02 PM

Quarterly Report
  • The company expects to need additional funding beyond late 2025, which they anticipate will primarily consist of raising additional capital through some combination of equity or debt financings, potential new collaborations or additional grant funding.
  • Spero has filed a new universal shelf registration statement on Form S-3 with the SEC, registering for sale up to $300.0 million of any combination of its common stock, preferred stock, debt securities, warrants, rights and/or units.
Worse than expected
15 May 2024 4:02 PM

Quarterly Report
  • The company reported a net loss of $12.7 million, which is a significant loss for the quarter, although slightly better than the $13.3 million loss in the same period last year.
Better than expected
13 March 2024 4:07 PM

Annual Results
  • The company reported a net income of $22.8 million for 2023, a significant improvement from the $46.4 million loss in 2022.
  • Revenue increased substantially to $103.8 million in 2023, compared to $53.5 million in 2022.
  • The company's cash runway is expected to extend into late 2025, providing financial stability.

Disclaimer: This summary was generated by artificial intelligence and its accuracy is not guaranteed. The information provided here is for general informational purposes only and does not constitute financial advice, recommendation, or endorsement of any kind. It may contain errors or omissions. You should not rely on this information to make financial decisions. Always seek the advice of a qualified financial professional before making any investment or financial decisions. Use of this information is at your own risk.