Clinical Trials and Research Activities - The company discontinued three Phase 3 trials of posoleucel in December 2023 due to futility analyses indicating the studies were unlikely to meet primary endpoints[98] - The company paused development of ALVR106 and ALVR107 pending the outcome of strategic alternatives review[101] - Research and development expenses decreased by 34.4millionto(0.2) million for the three months ended September 30, 2024, compared to 34.2millionforthesameperiodin2023,primarilyduetothediscontinuationofclinicaltrialsandresearchactivities[128]−Researchanddevelopmentexpensesdecreasedby87.7 million to 12.0millionfortheninemonthsendedSeptember30,2024,comparedto99.7 million for the same period in 2023, primarily due to the discontinuation of clinical trials and research activities and a 5.6milliongainonleasetermination[133]−Thecompanyexpectsresearchanddevelopmentexpensestocontinuetodecreasesignificantlyduetothediscontinuationofclinicaltrialsandresearchactivities,andwillincurcostsassociatedwiththeproposedMergerwithKalaris[140]−The29.6 million decrease in cash used in operating activities for the nine months ended September 30, 2024 compared to the same period in 2023 was a result of the discontinuation of the company's three Phase 3 registrational trials[147] - The company expects research and development and general and administrative costs to increase in connection with planned research and development activities[141] Workforce Reduction and Restructuring - The company implemented a workforce reduction plan, cutting approximately 95% of its employees, primarily completed by April 15, 2024[99] - General and administrative expenses decreased by 6.9millionto5.9 million for the three months ended September 30, 2024, compared to 12.8millionforthesameperiodin2023,primarilyduetoworkforcereductionanda1.5 million gain on lease remeasurement[129] - Restructuring costs were 0.1millionforthethreemonthsendedSeptember30,2024,primarilyduetoseveranceandemployeeterminationcosts[130]−Generalandadministrativeexpensesdecreasedby14.1 million to 23.7millionfortheninemonthsendedSeptember30,2024,comparedto37.8 million for the same period in 2023, primarily due to workforce reduction and a 3.3milliongainonleaseremeasurement[134]−Restructuringcostswere10.1 million for the nine months ended September 30, 2024, primarily due to severance and employee termination costs[135] Financial Performance and Cash Flow - The company reported a net loss of 40.5millionfortheninemonthsendedSeptember30,2024,withanaccumulateddeficitof696.7 million[106] - The company had 121.9millionincash,cashequivalents,andshort−terminvestmentsasofSeptember30,2024,withaprojectedrunwayofatleasttwelvemonths[109]−Totalotherincome(loss),netdecreasedby1.1 million to 1.6millionforthethreemonthsendedSeptember30,2024,comparedto2.7 million for the same period in 2023, primarily due to a decrease in accretion of discounts on short-term investments[131] - Total other income (loss), net decreased by 1.2millionto5.3 million for the nine months ended September 30, 2024, compared to 6.8millionforthesameperiodin2023,primarilyduetoadecreaseinaccretionofdiscountsonshort−terminvestments[136]−Thecompanyhascash,cashequivalents,andshort−terminvestmentsof121.9 million as of September 30, 2024, which is expected to fund operations for at least twelve months, but there is substantial doubt about the company's ability to continue as a going concern[139] - Net cash used in operating activities was 64.1millionfortheninemonthsendedSeptember30,2024,reflectinganetlossof40.5 million and a decrease in net operating assets and liabilities of 29.6million[146]−Netcashprovidedbyinvestingactivitieswas90.0 million for the nine months ended September 30, 2024, primarily due to investment maturities[148] - Net cash provided by financing activities was 0.0millionfortheninemonthsendedSeptember30,2024,primarilyduetoproceedsfromtheissuanceofstockundertheemployeestockpurchaseplan[149]−Netcashusedinoperatingactivitieswas93.7 million for the nine months ended September 30, 2023, reflecting a net loss of 130.7million[146]−Netcashprovidedbyinvestingactivitieswas12.8 million for the nine months ended September 30, 2023, due to investment maturities of 128.8million,partiallyoffsetbythepurchaseofinvestmentsof116.0 million[148] - Net cash provided by financing activities was 70.5millionfortheninemonthsendedSeptember30,2023,dueto70.2 million in net proceeds from the issuance of common stock in a public offering[150] Mergers and Acquisitions - The company entered into a merger agreement with Kalaris Therapeutics on November 7, 2024, with Kalaris continuing as a wholly-owned subsidiary[100] Revenue and Product Development - The company has no approved product candidates and has not generated any revenue from product sales[102] Capital Raising Activities - The company raised 292.0millioninnetproceedsfromitsIPOinAugust2020[103]−Thecompanyraised126.4 million in net proceeds from a securities purchase agreement in July 2022[104] - The company raised $70.2 million in net proceeds from a public offering in June 2023[105] Contingent Payments and Royalties - The company may incur potential contingent payments upon achievement of clinical, regulatory, and commercial milestones, or be required to make royalty payments under license agreements[151] Regulatory and Reporting Considerations - The company is an emerging growth company and may rely on exemptions and reduced reporting requirements provided by the JOBS Act[154]