In re Nektar Therapeutics Securities Litigation

CourtDistrict Court, N.D. California
DecidedDecember 30, 2020
Docket4:18-cv-06607
StatusUnknown

This text of In re Nektar Therapeutics Securities Litigation (In re Nektar Therapeutics Securities Litigation) is published on Counsel Stack Legal Research, covering District Court, N.D. California primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
In re Nektar Therapeutics Securities Litigation, (N.D. Cal. 2020).

Opinion

1 2 3 4 UNITED STATES DISTRICT COURT 5 NORTHERN DISTRICT OF CALIFORNIA 6 7 JOHN MULQUIN, Case No. 18-cv-06607-HSG

8 Plaintiff, ORDER GRANTING MOTION TO DISMISS 9 v. Re: Dkt. No. 86 10 NEKTAR THERAPEUTICS, et al., 11 Defendants.

12 13 This is a consolidated securities class action brought by Plaintiffs Oklahoma Firefighters 14 Pension and Retirement System and El Paso Firemen & Policemen’s Pension Fund (together, 15 “Lead Plaintiffs”) against Defendant Nektar Therapeutics (“Nektar” or “the Company”) and 16 Howard W. Robin, President and Chief Executive Officer; Stephen K. Doberstein, Senior Vice 17 President and Chief Scientific Officer, and later Chief Research and Development Officer; and 18 Jonathan Zalevsky, Senior Vice President of Research Biology and Preclinical Development, and 19 later Chief Scientific Officer (“Individual Defendants,” and collectively with Nektar, 20 “Defendants”). The Court previously dismissed Plaintiffs’ Consolidated Class Action Complaint 21 with leave to amend. See In re Nektar Therapeutics, No. 18-CV-06607-HSG, 2020 WL 3962004, 22 at *1 (N.D. Cal. July 13, 2020) (“Order); see Dkt. No. 54 (“CCAC”). In their Second 23 Consolidated Class Action Complaint, Plaintiffs allege violations of Sections 10(b) and 20(a) of 24 the Securities Exchange Act of 1934 (the “Exchange Act”) and Rule 10b-5 promulgated 25 thereunder. Dkt. No. 80 (“SAC”) ¶¶ 223–237. Pending before the Court is Defendants’ motion to 26 dismiss the SAC, for which briefing is complete. Dkt. Nos. 86 (“Mot.”), 87 (“Opp.”), and 88 27 (“Reply”). For the following reasons, the Court GRANTS Defendants’ motion to dismiss, this I. BACKGROUND 1 Plaintiffs bring this securities action “on behalf of a class of purchasers of the common 2 stock of Nektar who bought their shares between January 10, 2017, and September 28, 2018, 3 inclusive (the ‘Class Period’).” SAC at ¶ 1. The following facts are taken from the SAC. 4 Nektar is a research-based biopharmaceutical company with a “research and development 5 pipeline of new investigational drugs [that] includes treatments for cancer, autoimmune disease, 6 and chronic pain.” Id. at ¶ 13. At issue in this case is Nektar’s development of its “flagship” drug, 7 NKTR-214. Id. at ¶ 2. NKTR-214 was “a modified version of Interleukin-2,” a human protein 8 that “triggers the body’s production of cancer-fighting cells.” Id. at ¶¶ 3–4. While Interleukin-2 9 “has long been an approved cancer therapy,” a patient would need “significant quantities of native 10 [Interleukin]-2 to get any kind of effect, and at that point it’s wildly toxic.” Id. at ¶ 3 (quotations 11 omitted). The Company designed NKTR-214 to address this problem and “produce significant 12 quantities of cancer-fighting cells without affecting the production of immunosuppressive cells.” 13 Id. at 4 (quotations omitted). 14 A. EXCEL Clinical Trial 15 i. Trial Data 16 “In December 2015, Nektar announced that the first human patients had been dosed with 17 NKTR-214 in a Phase I clinical trial, EXCEL, for patients with advanced solid tumors.” Id. at 18 ¶ 50. EXCEL was a 28-patient monotherapy trial which dosed participants once every two to 19 three weeks. Id. at ¶¶ 68, 107. “On January 10, 2017, Defendant Robin gave a presentation at the 20 annual JP Morgan Healthcare Conference,” displaying results from the EXCEL clinical trial. Id. 21 at ¶ 50. “One slide showed that cancer-fighting cells increased by an average of 30-fold in tumors 22 of purportedly ten patients dosed with NKTR-214 every three weeks, with very little change in 23 their immunosuppressive Treg cells.” Id. at ¶ 51. This chart, the “30-fold increase chart,” forms 24 the basis of Plaintiffs’ securities claims. Id. at ¶¶ 105, 109, 113. This 30-fold increase chart was 25 then presented in a similar or identical form at numerous subsequent conferences. Id. at ¶ 53. 26 ii. Plainview Report 27 “On October 1, 2018, Plainview [LLC] published a report titled ‘NKTR-214: Pegging the 1 the Report that its authors ‘have short positions in and may own option interests on the stock of 2 [Nektar] and stand to realize gains in the event that the price of the stock decreases.’” Id. at ¶ 75. 3 The Report concluded that NKTR-214 is “too weak to work,” and found that “Nektar’s frequently 4 cite[d . . .] 30-fold average change in tumor-infiltrating lymphocyte (TIL) CD8+ . . . is distorted by 5 a single outlier patient who purportedly recorded an extreme change in TIL CD8+ [(cancer- 6 fighting cells)] but saw no clinical benefit.” Id. at ¶ 64–65. This finding referred to the 30-fold 7 increase chart. The Report also contended that “the [purported] source of the ‘30-fold’ increase 8 claim was a single line chart from a poster that Nektar displayed at a February 2017 American 9 Society of Clinical Oncology [ASCO] symposium.” Id. at ¶ 66. The line chart identified in the 10 Report was Figure 6 of the February 2017 ASCO poster. Id. at ¶ 67. Pointing to Patient 14 in 11 Figure 6, the Report explained: 12 Nektar ran a 28-patient Phase 1 EXCEL trial, during which Nektar evaluated the change in tumor-infiltrating CD8+ T cells. None of the 13 patients actually saw a 30-fold change in TIL CD8+: one single patient saw a ~300x increase, and this skewed the average. The 14 reported average barely exceeded the standard error and was not even close to statistical significance; tell-tale signs of data driven by 15 variation rather than efficacy. 16 Id. at ¶ 68 (emphasis omitted). Plaintiffs allege that through the Report’s disclosure of the 17 purported source of the data for the 30-fold increase chart, id. at ¶ 71, “investors finally had the 18 opportunity to study the relevant line chart . . . as well as the patient information to the right of the 19 [chart],” id. at ¶ 72. From the chart, investors deduced as follows: 20 The lines for Patients 2, 4, 6 are orange and the lines for Patients 14 and 15 are purple. That means that Patients 14 and 15 were on a two- 21 week dosing schedule, not a three-week dosing schedule as Nektar had said. The information to the right of the line chart makes clear 22 that patients whose lines are purple are dosed “q2w” or every two weeks, and that patients whose lines are orange are dosed “q3w” or 23 every three weeks. This shows that forty percent of the patients Nektar claimed to be on a three-week schedule were actually being 24 dosed more often than Nektar claimed. 25 Id. at ¶ 73. Thus, if the analysis was truly based on the “three patients dosed every three weeks— 26 Patients 2, 4, and 6—the fold change” was “~1.8 fold, a dramatically lower multiple that 27 undermines the central message Nektar repeatedly delivered during the Class Period.” Id. at ¶ 74. 1 was published before the marked opened on Monday, October 1, 2018, and by the time the market 2 closed, Nektar was trading at $56.65—a one day drop of 7% on heavy trading volume.” Id. at 3 ¶ 76. 4 B. PIVOT-2 Clinical Trial 5 “In February 2018, Nektar and [Bristol-Myers Squibb (“BMS”)] announced a ‘Global 6 Development & Commercialization Collaboration’ to evaluate NKTR-214.” Id. at ¶ 58. This 7 second clinical trial, known as PIVOT-02, tested a combination of NKTR-214 and Opdivo, a 8 cancer immunotherapy drug developed by BMS. Id. at ¶¶ 55, 62. “In connection with that 9 collaboration, BMS agreed to pay Nektar $1.85 billion upfront, comprised of $1.0 billion in cash 10 and the purchase of ~8.28 million shares of Nektar stock at $102.60 per share.” Id. at ¶ 58. 11 Plaintiffs allege that “Nektar personnel, including Tagliaferri and Gergel, or others 12 working at their direction, would reach out to PIVOT-02 investigators . . . to obtain data directly 13 from study sites for the purpose of including new, good data in medical conference posters and 14 presentations and investor presentations.” Id. at ¶ 187. “[B]ad patient data would be excluded 15 when the data was received after a predetermined cut-off time, but . . .

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In re Nektar Therapeutics Securities Litigation, Counsel Stack Legal Research, https://law.counselstack.com/opinion/in-re-nektar-therapeutics-securities-litigation-cand-2020.