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defendants “orchestrated a smear campaign against Cassava that included more than 1,000 false and defamatory statements.” On March 28, 2024, the judge dismissed Cassava's lawsuit, finding "that the majority of the defendants' statements were protected under the First Amendment as statements of opinion or scientific debate, and that the fraction of statements that were adequately alleged to be defamatory were not published with actual malice". The short-sellers had claimed that Hoau-Yan Wang's research on its experimental Alzheimer's drug was fabricated. Cassava refiled its suit against the four short-sellers in April 2024, but dropped the lawsuit in August after Wang was charged with submitting false data to the NIH.
657:. He writes that the paper relied on a method of analyzing how brain tissue "purportedly generates chemical signals"; Schrag found no indication the work, which he says "contradicts basic neurobiology", had been replicated. He sent two groups of images to JCI; the editor responded that they did not investigate further after examination of one of the groups did not corroborate Schrag's analysis. A group of four whistle-blowers also submitted concerns about the paper starting in August 2021. The four whistleblowers were independent of the two that filed the FDA petition, but they were also holding short positions on Cassava. JCI's investigation did not corroborate their concerns about the paper. 508:. When the petition was filed, Bredt was an executive partner at a firm that raised investment capital for another biotechnology company working on Alzheimer's treatment. He had noticed Cassava Sciences when its stock price increased in 2021 following early positive trial results for simufilam. After examining the preclinical research papers, Bredt remarked that "they were making statements that were incompatible with biology and with pharmacology", and said that if the research was in fact legitimate, it should "win five Nobel Prizes". According to 512:, Cassava's initial report that the reanalysis of simufilam's effectiveness was done by "an outside lab"—later revealed to be the CUNY lab of Wang, "a longtime paid consultant to the company"—was not revealed to investors; the news had led to a doubling of the company's stock price. Bredt and Pitt suspected the re-analysis had been done by Wang, which was later confirmed by Barbier. Barbier responded that Wang was not an employee, so he considered his lab separate. Among other methodological concerns, the petitioners suspected irregularities in 634:, two of which were co-authored with Burns that include the original papers on the discovery of FLNA binding as it relates to opioid receptor signaling. The FLNA retraction notices mention "vertical irregularities suggestive of splice lines" and that the "pixel patterns in background areas of blot images ... appear more similar than would be expected". The notices state: "The data and comments provided did not resolve the concerns about the integrity and reliability of data presented in this article." 465:
clinical trials of simufilam." Kate Moss, attorney, stated via email to Reuters in July 2022 that "Cassava Sciences ... has never been charged with a crime, and for good reason – Cassava Sciences has never engaged in criminal conduct." Piller summarized an email from Barbier as saying Cassava had "hired investigators to review its work, provided 'nearly 100,000 pages of documents to an alphabet soup of outside investigative agencies,' and asked CUNY to investigate ... "
2323:"Requests that the FDA halt the current clinical studies of Simufilam PTI-125 sponsored by Cassava Sciences NCT04388254 and NCT04994483, pending audits of 1 the publications relied on by Cassava in support of its scientific claims concerning Simufilam; 2 the IND application for Simulifam's use in Alzheimer's Disease; and 3 all clinical biomarker studies of Simufilam in Alzheimer's Disease" 497:, Thomas certified that the petition included "information known to the petitioner which are unfavorable to the petition". Cassava Sciences maintained that the claims about the research data were "outlandish" and said the FDA's process had been used abusively. Cassava's stock value dropped 55% after the petition was filed. 615:
found "no compelling evidence of data manipulation intended to misrepresent the results", but issued an expression of concern on a 2017 paper, saying they identified multiple errors. The journal issued a correction and indicated that its final decision awaited conclusions from the CUNY investigation.
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shares of Cassava Sciences, expecting the price of its stock to drop once problems with the research were revealed. After the stock's precipitous drop caused by the FDA petition, it was revealed that they were short sellers; Compliance Week stated that Thomas had not revealed this information when he
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stated in 2021 that the SEC, the NIH, and CUNY were investigating allegations of manipulated data. In October 2023, CUNY reported that they could obtain none of Wang's original data, which meant that they were unable to either prove or disprove allegations that the images were improperly manipulated;
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reassessed the 2012 paper that described simufilam binding to FLNA. The journal published a correction along with the original images in December 2021 remarking that the "error does not affect the conclusions of the article". After further data concerns were brought to the attention of the journal,
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Cassava Sciences has denied any wrongdoing. Following Wang's June 2024 indictment, Cassava Sciences issued a press release stating that, "Wang's work under these grants was related to the early development phases of the Company's drug candidate ...  had no involvement in the Company’s Phase 3
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in January 2022 that Cassava's bonus plan provides for potential cash bonuses tied to "specific valuations for twenty consecutive days". He added that the "full incentive scheme could exceed two hundred million dollars, and it was not pegged to F.D.A. approval or to the success of the drug—just to
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of PTI-125 had failed, but reported in September 2020 that a new analysis by an "outside lab" showed improvements in biomarkers, adding that individuals with Alzheimer's also showed improvements in cognition with simufilam. It was later revealed that the outside lab was Wang's CUNY lab. In October
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The WSJ wrote that, due to the promise of its experimental Alzheimer's drug, Cassava Sciences stock became the sixth-best stock of 2021, driving the company's value to over $ US5 billion, with the stock price reaching $ 125 per share. Keefe noted that part of the increase in share price was
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Remi Barbier was Cassava's president, chief executive officer and chairman of the board until his abrupt July 2024 resignation, when Richard J. (Rick) Barry was named executive chairman of the board. A new permanent CEO search was initiated, with the outgoing CEO, Barbier, to remain employed by
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On November 3, 2022, Cassava Sciences filed a defamation lawsuit in the U.S. District Court of the Southern District of New York against defendants Quintessential Capital Management LLC, Drs. David Bredt and Geoffrey Pitt and other short sellers. According to Bloomberg, the lawsuit alleges that
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Other officers, as of July 2024, are James W. Kupiec, chief medical officer, and Eric Schoen, chief financial officer. Senior vice presidents are: R. Christopher Cook (senior counsel), Michael Marsman (regulatory affairs), Michael Zamloot (tech operations), and George Thornton (technology).
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was assigned to the company's experimental drug, previously called PTI-125, which Cassava Sciences says can restore misshaped FLNA in the brain. Open-label studies had started in March 2020, and Cassava Sciences had reported in May 2020 that initial biomarker analysis of
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Subbaraman N, Walker J (October 13, 2023). "Cassava Sciences Adviser Found to Have Committed 'Egregious Misconduct'; Scientist, who is a City University of New York professor, didn't provide school investigators with data or records supporting his research".
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journal article on opioid tolerance was co-authored by Burns, Wang and others. According to Piller, Cassava has stated that the journal found no manipulation of images, but said the journal would respond to any new concerns based on the CUNY investigation.
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Remoxy was a twice-daily gel form of oxycodone intended to be abuse-deterrent. It was repeatedly rejected by the FDA, culminating in the final rejection in 2018 after an FDA advisory meeting raised concerns about its potential risk of abuse. According to
217:(FDA) rejection of one of its experimental pain drugs, Remoxy, Cassava announced in August 2018 it would reorganize the company to focus on products for treating and diagnosing Alzheimer's. In 2019, the company changed its name to Cassava Sciences. 409:
2021, larger trials were initiated; Cassava Sciences announced in December 2021 that the first phase III trial of simufilam would enroll about 750 participants, and the second 1,000. In the first quarter of 2022, 60 participants were enrolled;
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article stated in April 2022 that "many scientists have been deeply skeptical of the company's claims, asserting that Cassava's studies were flawed, its methods opaque and its results improbable". Robert Howard, professor of psychiatry at the
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images in papers by Wang and Burns, and were concerned that the 2020 "reanalysis" of findings by Wang had not been disclosed in Cassava's filings and that individuals enrolled in trials would be taking a drug that might not be safe. They
277:(WSJ) stated in 2021 that, along with Cassava's officers, he could receive bonuses based on Cassava's market performance; he was indicted in June 2024 for falsifying data related to Cassava's Alzheimer's drug in development, simufilam. 546:
The FDA rejected the petition in February 2022 because the requests were "not the appropriate subject of a citizen petition", saying also that the rejection was not “a decision by the agency to take or refrain from taking any action”.
180:. The company had no drug approved as of 2021, and no product revenues between 2013 and 2021; with 25 employees, the company's stock was the sixth-best performing in 2021 before falling after concerns over simufilam research. 2359: 1941: 300:. The share price fell to $ 42 after a petition was filed with the FDA in August 2021, questioning the company's research. After Wang's June 2024 indictment, the stock fell by 46% to a new low of about $ 10 per share. 454:(FDA), but the FDA said that the citizen petition "was not a proper avenue" to stop the trials in February 2022. The request that FDA conduct an investigation fell out of the purview of the citizen petition process. 537:
as another whistleblower who examined images. Schrag reported to the NIH irregularities in 34 papers with authors linked to Cassava Sciences or its work, including Wang, Burns and Cassava advisor Steven Arnold, a
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neurologist. Schrag was paid $ 18,000 by the petitioners' attorney for his hundreds of hours of analysis of the images. Piller contacted other experts who he said "generally agree" with Schrag's conclusions.
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Wang HY, Friedman E, Olmstead MC, Burns LH (2005). "Ultra-low-dose naloxone suppresses opioid tolerance, dependence and associated changes in mu opioid receptor-G protein coupling and Gbetagamma signaling".
584:, also commented: "The overall conclusions with regard to Alzheimer's disease make no sense to me whatsoever... are not in the mainstream of the field, and to me they seem implausible and contrived." 3086:
Talbot K, Wang HY, Kazi H, Han LY, Bakshi KP, Stucky A, Fuino RL, Kawaguchi KR, Samoyedny AJ, Wilson RS, Arvanitakis Z, Schneider JA, Wolf BA, Bennett DA, Trojanowski JQ, Arnold SE (April 2012).
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investigated a 2020 simufilam-related, also co-authored by Wang, and decided to take no action. Its editor reported finding "no convincing evidence of manipulation of data or intent to mislead".
572:, image-manipulation consultant, agreed to the citizen petition and alleged data errors and inconsistencies in the publications, identifying potential irregularities consistent with instances of 385:, the FDA reprimanded Cassava Sciences for appearing to promote the unapproved drug. Barbier accused the FDA of "math errors, material mistakes and misrepresentations", which the agency denied. 2155: 332:
buildup in the brain contributing to the disease; Cassava journal papers, co-authored by Wang and Burns, suggest that the shape of FLNA in the brain can be restored. A 2022 article in
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journal's Piller called the report "damning", saying the FDA found a "litany of problems" that raise "questions about the credibility of claims by Wang and Cassava about simufilam".
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in New York City around 1993. Crain invited Barbier to his lab and explained the potential pharmaceutical and financial benefits. In 1998, Barbier started Pain Therapeutics, Inc. in
2814:"Expression of Concern: Wang et al., (2017) PTI-125 binds and reverses an altered conformation of filamin A to reduce Alzheimer's disease pathogenesis. Neurobiol. Aging, 55:99–114" 2566: 254:
the share price. This appeared to create an incentive for the company to pump its own stock." The WSJ stated that, under this plan, Barbier's bonus could reach $ 108 million.
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reported that the August selloff of Cassava shares earned short sellers $ 100 million, and Compliance Week stated that Bredt and Pitt "potentially ... made millions".
485:—alleging concerns about unreliable research and potential data manipulation in Cassava Science's preclinical research for the experimental drug. The petition was submitted by 2755:
Wang HY, Lee KC, Pei Z, Khan A, Bakshi K, Burns LH (July 2017). "PTI-125 binds and reverses an altered conformation of filamin A to reduce Alzheimer's disease pathogenesis".
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stated that none of the Alzheimer's experts they spoke with knew of any support for the FLNA hypothesis; Lawrence Sterling Honig, professor of neurology at
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the senior vice president for neuroscience and Barbier's wife also resigned in 2024 following the indictment of her co-researcher Wang on charges of fraud.
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stating that the issue was under investigation by CUNY, and that the journal would "await the outcome of that investigation before taking further action".
2036: 1374: 3088:"Demonstrated brain insulin resistance in Alzheimer's disease patients is associated with IGF-1 resistance, IRS-1 dysregulation, and cognitive decline" 2181: 678: 1584: 2854: 534: 2058: 342:, said: "But in fact, all the evidence seems to be from this lab." (Wang and Burns had earlier published together on FLNA's role in naloxone and 3168: 2472: 3183: 2013: 3178: 482: 2881:"Retraction: High-Affinity Naloxone Binding to Filamin A Prevents Mu Opioid Receptor–Gs Coupling Underlying Opioid Tolerance and Dependence" 1703:"Retraction: High-Affinity Naloxone Binding to Filamin A Prevents Mu Opioid Receptor–Gs Coupling Underlying Opioid Tolerance and Dependence" 2948:"Retraction: Naloxone's Pentapeptide Binding Site on Filamin A Blocks Mu Opioid Receptor–Gs Coupling and CREB Activation of Acute Morphine" 1641:"Retraction: Naloxone's Pentapeptide Binding Site on Filamin A Blocks Mu Opioid Receptor–Gs Coupling and CREB Activation of Acute Morphine" 1610: 630:
re-examined Wang's research papers in March 2020 and found problems with data integrity that were not resolved. Five of Wang's papers were
2700:"Expression of Concern: Wang et al., "Reducing Amyloid-Related Alzheimer's Disease Pathogenesis by a Small Molecule Targeting Filamin A"" 2617: 425:(DOJ) for fraud and charged with falsifying data on $ 16 million in grant applications to the NIH related to simufilam. The DOJ and the 3158: 1432: 937: 433: 3173: 1277: 339: 176:
Cassava (as Pain Therapeutics) initially worked on three drugs: the pain drugs Oxytrex and Remoxy, and PTI-901, which aimed to treat
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stated that enrollment had slowed as of April 2022, as people were deterred from enlisting due to the prevailing controversies.
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in New York City, and requested that the FDA halt the clinical trials until the issues could be resolved. According to
1213: 568:, remarked that the lack of placebo and small sample size meant research conclusions were "implausible" at the least. 649: 631: 2228: 1410: 1388: 267:, Barbier would not specify in 2022 who were the company's 2022 scientific advisers. Hoau-Yan Wang, a professor at 461:
they paused the investigation a few weeks later over concerns about confidentiality and integrity of the process.
271:(CUNY) is a consultant who was on Cassava's advisory board. He is a co-author, with Burns, of many journal papers. 1760:
Burns LH, Wang HY (November 2010). "PTI-609: a novel analgesic that binds filamin A to control opioid signaling".
405: 1120:"Cassava Sciences Announces Changes in Executive Leadership, Enhanced Corporate Governance and Other Initiatives" 1091:"With resignations of top leaders, Cassava Sciences exposes a dark, ugly corner of the Alzheimer's disease world" 202: 88: 2445: 1942:"Cassava Sciences Launches Clinical Website to Support Phase 3 Studies of Oral Simufilam in Alzheimer's Disease" 1090: 1503: 1024: 933: 500:
The petitioners who filed the FDA complaint were identified months later, in November 2021, as neuroscientist
429:(SEC) were also investigating two senior Cassava employees. Barbier and Burns abruptly resigned in July 2024. 505: 289: 724: 592:
Several journal papers involving Cassava work and collaborators have been re-examined by their publishers.
474: 451: 214: 653:(JCI); Piller states that it forms a key part of Cassava's position that simufilam reduces resistance to 597: 268: 155: 143:. The company was founded in 1998 by Remi Barbier as Pain Therapeutics, Inc., changing its name in 2019. 959: 446:
reported in July 2022 that a criminal investigation of Cassava Sciences had been started by the DOJ. A
1533:"Cassava Sciences collaborator charged with defrauding NIH in grants supporting its Alzheimer's drug" 565: 673:
The company's SEC Form 10-K filings from 2021 state that Scientific Advisory Board members included
2254: 363: 328:) is a protein that Cassava Sciences says becomes misshaped in people with Alzheimer's, leading to 177: 699: 231:
Cassava until September 13, 2024 in a non-executive capacity, without duties or responsibilities.
1991:"Scientist behind Alzheimer's drug in late-stage trials is indicted on charges of research fraud" 273: 2103:"'Damning' FDA inspection report undermines positive trial results of possible Alzheimer's drug" 150:(previously known as PTI-125 and sumifilam), an oral-tablet drug candidate for the treatment of 828: 639: 151: 136: 2394:
Else H (January 2023). "Alzheimer's drug saga prompts journal to scrutinize whistle-blowers".
2322: 1251:"Troubles mount for Cassava Sciences, as patient enrollment lags for Alzheimer's drug studies" 3050: 2791: 2360:"The Cassava Sciences saga: Short sellers, 'gaming' the FDA, and the damaging ripple effects" 2209: 2156:"Exclusive: Cassava Sciences faces U.S. criminal probe tied to Alzheimer's drug, sources say" 854: 611: 603: 530: 2498: 1212: 193:
Cassava Sciences was founded by Remi Barbier in May 1998 as Pain Therapeutics, focusing on
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Co-developer of Cassava's potential Alzheimer's drug cited for 'egregious misconduct'
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Cassava advisors Wang and Arnold were co-authors on a highly-cited 2012 paper in the
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and chronic pain. Barbier first heard of the research led by Stanley M. Crain at the
56: 3043: 2592:"Two expressions of concern arrive for papers linked to beleaguered biotech Cassava" 1832: 3107: 3099: 3054: 3023: 2985: 2967: 2918: 2900: 2825: 2795: 2764: 2727: 2715: 2711: 2671: 2659: 2655: 2621: 2595: 2567:"Biotech firm drops defamation suit against short-sellers after researcher charged" 2411: 2292: 2185: 2116: 2073: 1810: 1769: 1732: 1722: 1670: 1660: 1614: 1411:"United States Securities and Exchange Commission Form 10-K, Cassava Sciences, Inc" 1389:"United States Securities and Exchange Commission Form 10-K, Cassava Sciences, Inc" 1350: 904: 899: 887: 682: 674: 490: 486: 2972: 2905: 2363: 2213: 1727: 1665: 494: 343: 66: 1872:"A 'disoriented' Pain Therapeutics flips out after FDA rejects appeal on Remoxy" 796:"SEC Investigating Cassava Sciences, Developer of Experimental Alzheimer's Drug" 2476: 2415: 2177: 2098: 1773: 1324: 1255: 1219: 686: 573: 523: 501: 410: 258: 249: 158: 38: 1435:. Cassava Sciences. March 5, 2021. Archived from the original on March 5, 2021 3152: 2981: 2914: 2723: 2699: 2667: 1167: 1062: 1036: 807: 569: 238: 170: 140: 107: 46: 2296: 2189: 2120: 2077: 1354: 3121: 3066: 3035: 2999: 2932: 2776: 2741: 2685: 2423: 2128: 1824: 1781: 1746: 1684: 1362: 913: 513: 173:, his wife, who was a Cassava senior vice president and Wang's co-author. 2037:"Cassava Sciences forms internal panel after US probe into two employees" 2014:"US professor charged with manipulating data for Alzheimer's drug trial" 1968:"Professor Charged for Operating Multimillion-Dollar Grant Fraud Scheme" 1815: 1796: 960:"FDA declines to approve Pain Therapeutics' opioid drug, shares plunge" 518: 297: 296:
driven by discussion and hype in online forums, making it a so-called
3103: 395: 370: 147: 2229:"Scientists Investigating Alzheimer's Drug Faulted in Leaked Report" 702:
for NIH grants totaling over $ 20 million for Cassava Sciences.
3138: 626: 1894:"USAN Modifies Lead Drug Candidate's Chemical Name to 'simufilam'" 1025:"Scientists Question Data Behind an Experimental Alzheimer's Drug" 119: 2855:"PLOS ONE Pulls Five Papers Tied to Alzheimer's Drug Controversy" 2522:"Meme Stock Cassava Sues Short Sellers Alleging a Smear Campaign" 963: 654: 443: 329: 2618:"Journal mulls expression of concern for Cassava Sciences paper" 1634: 1632: 292:(NIH) grants totalling $ 20 million between 2015 and 2021. 2473:"Cassava Short Sellers Reap $ 100 Million in August Stock Rout" 725:"Executives Depart Cassava, Maker of Disputed Alzheimer's Drug" 355: 194: 52: 2280:"Science podcast 220722 with Charles Piller and Sarah Crespi" 1629: 1585:"Cassava Sciences' Shares Down 46% After Adviser Is Indicted" 1474:"Cassava Sciences Issues Statement on Former Science Advisor" 450:
attempting to suspend the clinical trials was filed with the
888:"Janus-Faced Drugs: The Double-Edged Synthetic Opiate Trade" 167:
fraud over research results related to the experimental drug
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charged an advisor to Cassava Sciences, Hoau-Yan Wang, with
2541:"Drug Company's Libel Lawsuit Against Scientists Dismissed" 1847:"Pain Therapeutics slumps as Oxytrex fails Phase III trial" 377:. The phase III trials had high drop out rates and failed. 325: 285:
The company had no product revenues between 2013 and 2021.
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The company started with three drug candidates focused on
3012: 1948:(Press release). Cassava Sciences, Inc. December 23, 2021 1900:(Press release). Cassava Sciences, Inc. November 27, 2020 2945: 2878: 1970:(Press release). US Department of Justice. June 28, 2024 1504:"Embattled Alzheimer's Researcher Is Charged With Fraud" 1691: 2149: 2147: 2145: 1922:(Press release). Cassava Sciences. September 14, 2020 2255:"CUNY Halts Investigation of Alzheimer's Researcher" 1559:"Cassava Sciences Adviser Indicted on Fraud Charges" 794:
Michaels, Dave; Walker, Joseph (November 17, 2021).
2499:"Response Letter from FDA CDER to Labaton Sucharow" 2142: 1611:"Five studies linked to Cassava Sciences retracted" 432:A September 2022 FDA report was obtained under the 205:, with an initial investment of $ 1 million. 2353: 2351: 2349: 2347: 2345: 2226: 829:"Pain Therapeutics, Inc. – Cruelty Free Investing" 166: 3085: 1244: 1242: 1018: 1016: 1014: 1012: 1010: 1008: 1006: 1004: 1002: 1000: 504:, and cardiologist Geoffrey Pitt, a professor at 3150: 2202: 2035:Santhosh, Christy; Jain, Pratik (July 1, 2024). 1700: 1638: 1476:(Press release). Cassava Sciences. June 28, 2024 1453:: CS1 maint: bot: original URL status unknown ( 1122:(Press release). Cassava Sciences. July 17, 2024 998: 996: 994: 992: 990: 988: 986: 984: 982: 980: 620:The Journal of Prevention of Alzheimer’s Disease 416: 3144:CUNY investigation report on simufilam research 2342: 2154:Taylor, Marisa; Spector, Mike (July 27, 2022). 1114: 1112: 1110: 1108: 958:Mishra, Manas; Shyam, Ashwin (August 6, 2018). 716: 308:As of November 2021, Cassava had 25 employees. 2754: 2519: 2272: 1239: 927: 925: 923: 793: 468: 349: 3194:Pharmaceutical companies of the United States 2389: 2387: 2385: 2153: 1319: 1317: 1315: 1313: 1311: 1309: 1307: 1305: 1303: 977: 881: 879: 877: 875: 855:"SAVA – Cassava Sciences Inc Company Profile" 316:The company had no drug approved as of 2021. 3189:Pharmaceutical companies established in 1998 2464: 2034: 2012:Cohen, Luc; Taylor, Marisa (June 28, 2024). 1526: 1524: 1203: 1201: 1199: 1197: 1195: 1193: 1191: 1189: 1187: 1185: 1105: 1057: 1055: 1053: 2946:PLOS ONE Editorial Board (March 30, 2022). 2879:PLOS ONE Editorial Board (March 30, 2022). 2748: 2170: 2011: 1866: 1864: 1552: 1550: 1497: 1495: 1493: 1491: 957: 920: 789: 787: 785: 783: 781: 779: 777: 775: 773: 771: 769: 767: 765: 288:Cassava and its collaborators were awarded 2806: 2382: 2252: 2091: 1788: 1501: 1413:. Cassava Sciences, Inc. February 28, 2022 1300: 1248: 1088: 1084: 1082: 1080: 1022: 938:Genetic Engineering and Biotechnology News 872: 763: 761: 759: 757: 755: 753: 751: 749: 747: 745: 722: 3111: 2989: 2971: 2922: 2904: 2829: 2731: 2675: 2610: 2584: 2496: 1814: 1759: 1736: 1726: 1674: 1664: 1582: 1521: 1214:"Jordan Thomas's Army of Whistle-Blowers" 1182: 1134: 1050: 903: 587: 340:Columbia University Irving Medical Center 2520:Benny-Morrison, Ava (November 3, 2022). 2470: 2253:Mandavilli, Apoorva (October 28, 2023). 2196: 1861: 1547: 1488: 934:"Pain Therapeutics Takes Different Path" 931: 554: 358:treatment: Oxytrex, Remoxy and PTI-901 ( 2227:Apoorva Mandavilli (October 14, 2023). 2051: 1468: 1466: 1464: 1391:. Cassava Sciences, Inc. March 23, 2021 1270: 1077: 932:Sturgeon, Christopher (June 15, 2006). 885: 742: 427:U.S. Securities and Exchange Commission 421:In June 2024, Wang was indicted by the 3169:American companies established in 1998 3151: 2538: 2357: 2336: 2309: 2176: 2097: 1794: 1556: 1323: 1023:Mandavilli, Apoorva (April 18, 2022). 388: 311: 3184:Medical scandals in the United States 2564: 2471:Flanagan, Cristin (August 31, 2021). 1960: 1530: 1502:Mandavilli, Apoorva (June 28, 2024). 1207: 951: 3179:Health care companies based in Texas 2852: 2831:10.1016/j.neurobiolaging.2022.03.012 2800:10.1016/j.neurobiolaging.2022.03.012 2769:10.1016/j.neurobiolaging.2017.03.016 2393: 1988: 1461: 595:Following the public controversies, 220: 1701:PLOS ONE Editors (March 30, 2022). 1639:PLOS ONE Editors (March 30, 2022). 723:Rosenbluth, Teddy (July 18, 2024). 580:, Nobel laureate neuroscientist at 423:United States Department of Justice 199:Albert Einstein College of Medicine 163:United States Department of Justice 13: 3059:10.1016/j.neuroscience.2021.11.019 3028:10.1016/j.neuroscience.2005.06.003 2497:Cavazzoni, P. (February 9, 2022). 1249:Feuerstein, Adam (April 5, 2022). 1227:from the original on July 22, 2022 1166:. Cassava Sciences. Archived from 1089:Feuerstein, Adam (July 17, 2024). 393:In August 2020, the chemical name 319: 14: 3205: 3159:1998 establishments in California 3132: 2539:Volokh, Eugene (March 29, 2024). 2059:"Establishment Inspection Report" 1583:Beckerman, Josh (June 28, 2024). 1531:Wosen, Jonathan (June 28, 2024). 650:Journal of Clinical Investigation 489:, who was then with the law firm 3174:Companies based in Austin, Texas 2654:(50): 10405. December 15, 2021. 2358:Jaeger, Jaclyn (March 2, 2022). 1849:. PharmaTimes. November 23, 2005 1557:Walker, Joseph (June 28, 2024). 700:Reporter.nih.gov Advanced search 529:In July 2022, Piller identified 522:certified the citizen petition. 3079: 3006: 2939: 2872: 2846: 2692: 2636: 2558: 2532: 2513: 2490: 2438: 2315: 2246: 2220: 2028: 2005: 1982: 1934: 1912: 1886: 1839: 1753: 1603: 1576: 1425: 1403: 1381: 1156: 692: 667: 203:South San Francisco, California 89:South San Francisco, California 16:American pharmaceutical company 2716:10.1523/JNEUROSCI.2306-21.2021 2660:10.1523/JNEUROSCI.2154-21.2021 905:10.1016/j.chembiol.2005.10.003 847: 821: 576:across different experiments. 208: 161:as of 2022. In June 2024, the 1: 3049:(This paper currently has an 2790:(This paper currently has an 2565:Cohen, Luc (August 5, 2024). 2446:"Corrections: April 20, 2022" 1144:. BioSpace. December 20, 2022 709: 506:Weill Cornell Medical College 434:US Freedom of Information Act 417:Allegations of research fraud 290:National Institutes of Health 225: 3164:Alzheimer's disease research 2973:10.1371/journal.pone.0266629 2906:10.1371/journal.pone.0266627 2853:Akst, Jef (March 31, 2022). 2710:(3): 529. January 19, 2022. 1989:Bush, Evan (June 28, 2024). 1728:10.1371/journal.pone.0266627 1666:10.1371/journal.pone.0266629 475:Food and Drug Administration 452:Food and Drug Administration 280: 215:Food and Drug Administration 7: 2648:The Journal of Neuroscience 1433:"Scientific Advisory Board" 1278:"Lindsay Burns Barbier '87" 598:The Journal of Neuroscience 469:Citizen petition to the FDA 350:Oxytrex, Remoxy and PTI-901 303: 269:City University of New York 188: 78:; 26 years ago 10: 3210: 2416:10.1038/d41586-023-00050-z 1774:10.2174/157488910793362386 1762:Recent Pat CNS Drug Discov 1282:www.harvardvarsityclub.org 183: 566:University College London 406:phase IIb clinical trials 369:Oxytrex was a mixture of 114: 103: 95: 72: 62: 44: 34: 26: 833:crueltyfreeinvesting.org 660: 481:–filed on behalf of two 364:irritable bowel syndrome 178:irritable bowel syndrome 2704:Journal of Neuroscience 2297:10.1126/science.ade0384 2190:10.1126/science.adl3444 2121:10.1126/science.adp1964 2078:10.1126/science.z7wo4zp 1946:GlobeNewswire News Room 1898:GlobeNewswire News Room 1563:The Wall Street Journal 1355:10.1126/science.add9993 892:Chemistry & Biology 886:Wolfson, Wendy (2005). 510:The Wall Street Journal 458:The Wall Street Journal 404:(CSF) samples from its 274:The Wall Street Journal 30:Pain Therapeutics, Inc. 588:Journal investigations 146:Cassava is developing 137:pharmaceutical company 22:Cassava Sciences, Inc. 3051:expression of concern 2818:Neurobiology of Aging 2792:expression of concern 1209:Keefe, Patrick Radden 612:Neurobiology of Aging 604:expression of concern 555:Other concerns raised 531:Vanderbilt University 213:Following the fourth 2180:(October 12, 2023). 1802:Nature Biotechnology 1795:Jacobs, Tom (2005). 1211:(January 15, 2022). 689:, and Hoau-Yan Wang. 473:In August 2021, the 2964:2022PLoSO..1766629. 2897:2022PLoSO..1766627. 2624:. November 22, 2021 2598:. December 20, 2021 2408:2023Natur.613..618E 2206:Wall Street Journal 2184:(Report). Science. 2115:(6688): 1165–1166. 1816:10.1038/nbt0805-934 1797:"No pain, no gain?" 1719:2022PLoSO..1766627. 1657:2022PLoSO..1766629. 1377:on August 28, 2022. 1347:2022Sci...377..358P 1329:"Blots on a field?" 800:Wall Street Journal 582:Stanford University 402:cerebrospinal fluid 389:Alzheimer's disease 375:withdrawal symptoms 360:low-dose naltrexone 312:Research candidates 152:Alzheimer's disease 23: 2450:The New York Times 2259:The New York Times 2101:(March 11, 2024). 1508:The New York Times 1065:. Cassava Sciences 1029:The New York Times 540:Harvard University 383:The New York Times 335:The New York Times 154:; simufilam is in 21: 2501:. regulations.gov 2402:(7945): 618–619. 2370:on August 1, 2022 2335:As referenced by 2325:. regulations.gov 2291:. July 22, 2022. 1341:(6604): 358–363. 1327:(July 21, 2022). 898:(10): 1055–1056. 477:(FDA) received a 436:; in March 2024, 221:Corporate affairs 130: 129: 3201: 3126: 3125: 3115: 3104:10.1172/JCI59903 3083: 3077: 3076: 3072:Retraction Watch 3047: 3010: 3004: 3003: 2993: 2975: 2943: 2937: 2936: 2926: 2908: 2876: 2870: 2869: 2867: 2865: 2850: 2844: 2843: 2833: 2810: 2804: 2803: 2788: 2752: 2746: 2745: 2735: 2696: 2690: 2689: 2679: 2640: 2634: 2633: 2631: 2629: 2622:Retraction Watch 2614: 2608: 2607: 2605: 2603: 2596:Retraction Watch 2588: 2582: 2581: 2579: 2577: 2562: 2556: 2555: 2553: 2551: 2536: 2530: 2529: 2517: 2511: 2510: 2508: 2506: 2494: 2488: 2487: 2485: 2483: 2468: 2462: 2461: 2459: 2457: 2452:. April 19, 2022 2442: 2436: 2435: 2391: 2380: 2379: 2377: 2375: 2366:. 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Thomas 479:citizen petition 448:citizen petition 133:Cassava Sciences 126: 123: 122:.cassavasciences 121: 86: 84: 79: 24: 20: 3209: 3208: 3204: 3203: 3202: 3200: 3199: 3198: 3149: 3148: 3139:Company website 3135: 3130: 3129: 3084: 3080: 3048: 3011: 3007: 2958:(3): e0266629. 2944: 2940: 2891:(3): e0266627. 2877: 2873: 2863: 2861: 2851: 2847: 2812: 2811: 2807: 2789: 2757:Neurobiol Aging 2753: 2749: 2698: 2697: 2693: 2642: 2641: 2637: 2627: 2625: 2616: 2615: 2611: 2601: 2599: 2590: 2589: 2585: 2575: 2573: 2563: 2559: 2549: 2547: 2537: 2533: 2518: 2514: 2504: 2502: 2495: 2491: 2481: 2479: 2469: 2465: 2455: 2453: 2444: 2443: 2439: 2392: 2383: 2373: 2371: 2364:Compliance Week 2356: 2343: 2328: 2326: 2321: 2320: 2316: 2301: 2299: 2282: 2278: 2277: 2273: 2263: 2261: 2251: 2247: 2237: 2235: 2225: 2221: 2201: 2197: 2178:Piller, Charles 2175: 2171: 2161: 2159: 2152: 2143: 2133: 2131: 2099:Piller, Charles 2096: 2092: 2082: 2080: 2061: 2057: 2056: 2052: 2042: 2040: 2033: 2029: 2019: 2017: 2010: 2006: 1996: 1994: 1987: 1983: 1973: 1971: 1966: 1965: 1961: 1951: 1949: 1940: 1939: 1935: 1925: 1923: 1918: 1917: 1913: 1903: 1901: 1892: 1891: 1887: 1877: 1875: 1870: 1869: 1862: 1852: 1850: 1845: 1844: 1840: 1793: 1789: 1758: 1754: 1713:(3): e0266627. 1699: 1692: 1651:(3): e0266629. 1637: 1630: 1620: 1618: 1609: 1608: 1604: 1594: 1592: 1589:Morningstar.com 1581: 1577: 1567: 1565: 1555: 1548: 1538: 1536: 1529: 1522: 1512: 1510: 1500: 1489: 1479: 1477: 1472: 1471: 1462: 1446: 1445: 1438: 1436: 1431: 1430: 1426: 1416: 1414: 1409: 1408: 1404: 1394: 1392: 1387: 1386: 1382: 1325:Piller, Charles 1322: 1301: 1291: 1289: 1288:on June 2, 2022 1276: 1275: 1271: 1261: 1259: 1247: 1240: 1230: 1228: 1206: 1183: 1173: 1171: 1162: 1161: 1157: 1147: 1145: 1140: 1139: 1135: 1125: 1123: 1118: 1117: 1106: 1096: 1094: 1087: 1078: 1068: 1066: 1061: 1060: 1051: 1041: 1039: 1021: 978: 968: 966: 956: 952: 942: 940: 930: 921: 884: 873: 863: 861: 853: 852: 848: 838: 836: 827: 826: 822: 812: 810: 792: 743: 733: 731: 721: 717: 712: 707: 706: 697: 693: 672: 668: 663: 590: 557: 533:neuroscientist 495:Compliance Week 471: 419: 391: 352: 344:opioid receptor 322: 320:FLNA hypothesis 314: 306: 283: 228: 223: 211: 191: 186: 159:clinical trials 135:is an American 118: 82: 80: 77: 67:Pharmaceuticals 49: 17: 12: 11: 5: 3207: 3197: 3196: 3191: 3186: 3181: 3176: 3171: 3166: 3161: 3147: 3146: 3141: 3134: 3133:External links 3131: 3128: 3127: 3098:(4): 1316–38. 3078: 3005: 2938: 2871: 2845: 2805: 2747: 2691: 2635: 2609: 2583: 2557: 2531: 2512: 2489: 2477:Bloomberg News 2463: 2437: 2381: 2341: 2314: 2271: 2245: 2233:New York Times 2219: 2195: 2169: 2141: 2090: 2050: 2027: 2004: 1981: 1959: 1933: 1911: 1885: 1860: 1838: 1787: 1768:(3): 210–220. 1752: 1690: 1628: 1602: 1575: 1546: 1520: 1487: 1460: 1424: 1402: 1380: 1299: 1269: 1238: 1220:The New Yorker 1181: 1155: 1133: 1104: 1076: 1049: 976: 950: 919: 871: 846: 835:. 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Bredt 483:whistleblowers 470: 467: 418: 415: 390: 387: 351: 348: 321: 318: 313: 310: 305: 302: 282: 279: 259:Charles Piller 250:The New Yorker 227: 224: 222: 219: 210: 207: 190: 187: 185: 182: 128: 127: 116: 112: 111: 105: 101: 100: 97: 93: 92: 74: 70: 69: 64: 60: 59: 50: 45: 42: 41: 36: 32: 31: 28: 15: 9: 6: 4: 3: 2: 3206: 3195: 3192: 3190: 3187: 3185: 3182: 3180: 3177: 3175: 3172: 3170: 3167: 3165: 3162: 3160: 3157: 3156: 3154: 3145: 3142: 3140: 3137: 3136: 3123: 3119: 3114: 3109: 3105: 3101: 3097: 3093: 3092:J Clin Invest 3089: 3082: 3074: 3073: 3068: 3064: 3060: 3056: 3052: 3045: 3041: 3037: 3033: 3029: 3025: 3022:(1): 247–61. 3021: 3017: 3009: 3001: 2997: 2992: 2987: 2983: 2979: 2974: 2969: 2965: 2961: 2957: 2953: 2949: 2942: 2934: 2930: 2925: 2920: 2916: 2912: 2907: 2902: 2898: 2894: 2890: 2886: 2882: 2875: 2860: 2859:The Scientist 2856: 2849: 2841: 2837: 2832: 2827: 2824:: 152. 2022. 2823: 2819: 2815: 2809: 2801: 2797: 2793: 2786: 2782: 2778: 2774: 2770: 2766: 2762: 2758: 2751: 2743: 2739: 2734: 2729: 2725: 2721: 2717: 2713: 2709: 2705: 2701: 2695: 2687: 2683: 2678: 2673: 2669: 2665: 2661: 2657: 2653: 2649: 2645: 2639: 2623: 2619: 2613: 2597: 2593: 2587: 2572: 2568: 2561: 2546: 2542: 2535: 2527: 2523: 2516: 2500: 2493: 2478: 2474: 2467: 2451: 2447: 2441: 2433: 2429: 2425: 2421: 2417: 2413: 2409: 2405: 2401: 2397: 2390: 2388: 2386: 2369: 2365: 2361: 2354: 2352: 2350: 2348: 2346: 2338: 2324: 2318: 2311: 2298: 2294: 2290: 2289: 2281: 2275: 2260: 2256: 2249: 2234: 2230: 2223: 2215: 2211: 2207: 2199: 2191: 2187: 2183: 2179: 2173: 2157: 2150: 2148: 2146: 2130: 2126: 2122: 2118: 2114: 2110: 2109: 2104: 2100: 2094: 2079: 2075: 2071: 2067: 2060: 2054: 2038: 2031: 2015: 2008: 1992: 1985: 1969: 1963: 1947: 1943: 1937: 1921: 1915: 1899: 1895: 1889: 1873: 1867: 1865: 1848: 1842: 1834: 1830: 1826: 1822: 1817: 1812: 1808: 1804: 1803: 1798: 1791: 1783: 1779: 1775: 1771: 1767: 1763: 1756: 1748: 1744: 1739: 1734: 1729: 1724: 1720: 1716: 1712: 1708: 1704: 1697: 1695: 1686: 1682: 1677: 1672: 1667: 1662: 1658: 1654: 1650: 1646: 1642: 1635: 1633: 1616: 1612: 1606: 1590: 1586: 1579: 1564: 1560: 1553: 1551: 1534: 1527: 1525: 1509: 1505: 1498: 1496: 1494: 1492: 1475: 1469: 1467: 1465: 1456: 1450: 1434: 1428: 1412: 1406: 1390: 1384: 1376: 1372: 1368: 1364: 1360: 1356: 1352: 1348: 1344: 1340: 1336: 1335: 1330: 1326: 1320: 1318: 1316: 1314: 1312: 1310: 1308: 1306: 1304: 1287: 1283: 1279: 1273: 1258: 1257: 1252: 1245: 1243: 1226: 1222: 1221: 1215: 1210: 1204: 1202: 1200: 1198: 1196: 1194: 1192: 1190: 1188: 1186: 1169: 1165: 1159: 1143: 1137: 1121: 1115: 1113: 1111: 1109: 1092: 1085: 1083: 1081: 1064: 1058: 1056: 1054: 1038: 1034: 1030: 1026: 1019: 1017: 1015: 1013: 1011: 1009: 1007: 1005: 1003: 1001: 999: 997: 995: 993: 991: 989: 987: 985: 983: 981: 965: 961: 954: 939: 935: 928: 926: 924: 915: 911: 906: 901: 897: 893: 889: 882: 880: 878: 876: 860: 856: 850: 834: 830: 824: 809: 805: 801: 797: 790: 788: 786: 784: 782: 780: 778: 776: 774: 772: 770: 768: 766: 764: 762: 760: 758: 756: 754: 752: 750: 748: 746: 730: 726: 719: 715: 701: 695: 688: 684: 680: 679:Steven Arnold 676: 670: 666: 658: 656: 652: 651: 645: 642: 641: 635: 633: 629: 628: 623: 621: 617: 614: 613: 607: 605: 602:it issued an 600: 599: 593: 585: 583: 579: 575: 571: 570:Elisabeth Bik 567: 562: 552: 548: 544: 541: 536: 532: 527: 525: 520: 515: 511: 507: 503: 498: 496: 492: 488: 484: 480: 476: 466: 462: 459: 455: 453: 449: 445: 441: 439: 435: 430: 428: 424: 414: 412: 407: 403: 398: 397: 386: 384: 378: 376: 372: 367: 365: 361: 357: 347: 345: 341: 337: 336: 331: 327: 317: 309: 301: 299: 293: 291: 286: 278: 276: 275: 270: 266: 265: 261:, writing in 260: 257:According to 255: 252: 251: 246: 245:Patrick Keefe 242: 240: 239:Lindsay Burns 236: 232: 218: 216: 206: 204: 200: 196: 181: 179: 174: 172: 171:Lindsay Burns 168: 164: 160: 157: 153: 149: 144: 142: 141:Austin, Texas 138: 134: 125: 117: 113: 109: 108:Austin, Texas 106: 102: 98: 94: 90: 75: 71: 68: 65: 61: 58: 54: 51: 48: 43: 40: 37: 33: 29: 25: 19: 3095: 3091: 3081: 3071: 3069:,   3019: 3016:Neuroscience 3015: 3008: 2955: 2951: 2941: 2888: 2884: 2874: 2862:. 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NBC News 1926:August 31, 1809:(8): 934. 710:References 298:meme stock 226:Leadership 2982:1932-6203 2915:1932-6203 2864:April 28, 2840:247586479 2785:207163555 2724:0270-6474 2668:0270-6474 2576:August 6, 2550:March 31, 2526:Bloomberg 2505:April 29, 2432:255801597 2158:. Reuters 2039:. Reuters 2016:. 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Index

Public
Traded as
Nasdaq
SAVA
Pharmaceuticals
South San Francisco, California
Austin, Texas
www.cassavasciences.com
pharmaceutical company
Austin, Texas
simufilam
Alzheimer's disease
phase III
clinical trials
United States Department of Justice
fraud over research results related to the experimental drug
Lindsay Burns
irritable bowel syndrome
opioids
Albert Einstein College of Medicine
South San Francisco, California
Food and Drug Administration
Lindsay Burns
Patrick Keefe
The New Yorker
Charles Piller
Science
City University of New York
The Wall Street Journal
National Institutes of Health

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