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Gregory v. Pronai Therapeutics Inc.
297 F. Supp. 3d 372
S.D. Ill.
2018
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Background

  • ProNAi was a clinical-stage biotech whose sole clinical drug candidate was PNT2258 (a DNAi-based therapy targeting BCL2). The IPO prospectus (July 15, 2015) and subsequent SEC filings repeatedly described preliminary Phase I/Phase II data and projected a registration-oriented development program while including extensive cautionary language about risks and uncertainty.
  • Plaintiffs (a putative class of investors who bought ProNAi securities July 15, 2015–June 6, 2016) allege 70 false or misleading statements and omissions about PNT2258’s efficacy, protocol amendments, registration-readiness, and internal controls, asserting violations of §10(b), Rule 10b-5 and §20(a).
  • Key factual allegations rested on internal preclinical and clinical developments: confidential witnesses claimed repeated negative preclinical findings; ProNAi amended Wolverine and Brighton trial protocols; several executives resigned during the Class Period; interim Wolverine/Brighton data ultimately prompted discontinuation of PNT2258 on June 6, 2016, causing a stock price collapse.
  • Defendants moved to dismiss under Rules 12(b)(6) and 9(b)/PSLRA, arguing many challenged statements were non-actionable puffery, protected forward-looking statements, accompanied by meaningful cautionary language, or publicly disclosed (e.g., protocol amendments on ClinicalTrials.gov); they also disputed scienter and materiality.
  • The Court found most challenged statements non-actionable (puffery, forward-looking with meaningful cautionary language, or already disclosed) but identified a narrow category of non-forward-looking opinion statements (post-September 2015) about PNT2258’s scientific potential that could be materially misleading for omitting persistently negative preclinical results communicated to executives.
  • Even assuming some statements were materially misleading, the Court held plaintiffs failed to plead a strong inference of scienter (no concrete motive, no particularized facts showing conscious misbehavior or recklessness), and thus dismissed the Amended Complaint with prejudice.

Issues

Issue Plaintiff's Argument Defendant's Argument Held
Alleged misstatements re: Phase I/Pilot Phase II efficacy and safety Statements overstated efficacy and omitted adverse events, discontinuations, and comparative disease-progression data Phase I was a safety study; Pilot Phase II disclosures were qualified; many omissions were non-actionable (no duty) or immaterial Dismissed: disclosures about Phase I/Pilot II not materially misleading as pled; omissions not shown to be material or to impose a duty to disclose
Non-disclosure of Wolverine/Brighton interim results and protocol amendments Defendants should have disclosed adverse interim results and certain protocol amendments earlier because they made other efficacy statements No duty to disclose interim results when company had not previously reported on those trials; many protocol amendments were publicly posted on ClinicalTrials.gov Dismissed: no duty to update; protocol amendments were publicly disclosed; not actionable
Statements of scientific opinion and forward-looking commercialization claims (DNAi viability, market potential, registration strategy) Opinions were misleading because defendants knew preclinical work uniformly showed DNAi/PNT2258 was ineffective; forward-looking statements were assurances without basis Statements were forward-looking or opinion; accompanied by extensive, meaningful cautionary language (bespeaks-caution); opinions were sincerely held and not contradicted by disclosed facts Narrow ruling: most forward-looking statements protected; but non-forward-looking opinion statements (post-Sept. 2015) could be misleading for omitting negative preclinical results — but scienter not pled sufficiently
Scienter and control-person liability under §20(a) Executives had motive (raise IPO proceeds, acquire assets) and showed reckless conduct (resignations, withheld negative data) Motive alleged is generic; resignations and internal disagreements do not establish fraud; plaintiffs fail to plead conscious misbehavior or strong circumstantial evidence of recklessness Dismissed: plaintiffs failed to plead a strong inference of scienter; §20(a) claims dismissed because no primary violation adequately pled

Key Cases Cited

  • Bell Atl. Corp. v. Twombly, 550 U.S. 544 (pleading must be facially plausible)
  • Ashcroft v. Iqbal, 556 U.S. 662 (legal conclusions not entitled to an assumption of truth)
  • Tellabs, Inc. v. Makor Issues & Rights, Ltd., 551 U.S. 308 (holistic scienter inquiry; strong inference standard)
  • Matrixx Initiatives, Inc. v. Siracusano, 563 U.S. 27 (materiality and omissions analysis under Rule 10b-5)
  • Basic Inc. v. Levinson, 485 U.S. 224 (no affirmative duty to disclose absent necessity to avoid misleading statements)
  • TSC Indus., Inc. v. Northway, Inc., 426 U.S. 438 (materiality standard for securities disclosures)
  • Novak v. Kasaks, 216 F.3d 300 (confidential witness pleading and access-to-information requirements)
  • ATSI Communications, Inc. v. Shaar Fund, Ltd., 493 F.3d 87 (heightened pleading standards for securities fraud)
  • Omnicare, Inc. v. Laborers District Council, 575 U.S. 175 (opinion statements actionable when omitted facts conflict with reasonable investor’s understanding)
  • Slayton v. American Express Co., 604 F.3d 758 (PSLRA safe-harbor and meaningful cautionary language analysis)
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Case Details

Case Name: Gregory v. Pronai Therapeutics Inc.
Court Name: District Court, S.D. Illinois
Date Published: Mar 13, 2018
Citation: 297 F. Supp. 3d 372
Docket Number: 16 Civ. 8703 (PAE)
Court Abbreviation: S.D. Ill.