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No. 10323156
United States Court of Appeals for the Ninth Circuit
Zachary Silbersher v. Allergan, Inc.
No. 10323156 · Decided January 29, 2025
No. 10323156·Ninth Circuit · 2025·
FlawFinder last updated this page Apr. 2, 2026
Case Details
Court
United States Court of Appeals for the Ninth Circuit
Decided
January 29, 2025
Citation
No. 10323156
Disposition
See opinion text.
Full Opinion
NOT FOR PUBLICATION FILED
UNITED STATES COURT OF APPEALS JAN 29 2025
MOLLY C. DWYER, CLERK
U.S. COURT OF APPEALS
FOR THE NINTH CIRCUIT
UNITED STATES OF AMERICA, EX REL. No. 23-15613
ZACHARY SILBERSHER, Relator,
D.C. No. 3:18-cv-03018-JCS
Plaintiff-Appellant,
v. MEMORANDUM*
ALLERGAN, INC.; ALLERGAN USA,
INC.; ALLERGAN SALES, LLC; FOREST
LABORATORIES HOLDINGS, LTD.;
ADAMAS PHARMA LLC; ADAMAS
PHARMACEUTICALS, INC.,
Defendants-Appellees.
Appeal from the United States District Court
for the Northern District of California
Joseph C. Spero, Magistrate Judge, Presiding
Argued and Submitted November 21, 2024
San Jose, California
Before: FRIEDLAND and BUMATAY, Circuit Judges, and KENNELLY,**
District Judge.
Appellant Zachary Silbersher appeals from the dismissal of his qui tam relator
*
This disposition is not appropriate for publication and is not precedent
except as provided by Ninth Circuit Rule 36-3.
**
The Honorable Matthew F. Kennelly, United States District Judge for
the Northern District of Illinois, sitting by designation.
suit brought under the False Claims Act (“FCA”) against appellees Allergan, Inc.,
Adamas Pharma LLC, and their various affiliates and subsidiaries (hereinafter
“Allergan and Adamas”). We have jurisdiction under 28 U.S.C. § 1291 and affirm.
We review a district court’s dismissal of claims under the FCA de novo.
United States ex rel. Campie v. Gilead Scis., Inc., 862 F.3d 890, 898 (9th Cir. 2017).
Now on his second appeal, Silbersher alleges that Allergan and Adamas
violated the FCA and equivalent state laws by fraudulently obtaining patents for two
drugs used to treat Alzheimer’s disease, Namenda XR® and Namzaric®. According
to Silbersher, Allergan and Adamas were thus able to prevent generic manufacturers
from entering the market, allowing them to submit artificially high prices for
reimbursement or payment by Medicare, Medicaid, and various federal and state
agencies that provide or pay for health services.
On remand, the district court dismissed Silbersher’s qui tam action. The
district court had previously held that Silbersher’s complaint alleged substantially
the same transactions as those contained in public disclosures as defined by 31
U.S.C. § 3730(e)(4)(A), and his claim therefore failed under the public disclosure
bar of the FCA unless he could qualify as an original source as defined in
§ 3730(e)(4)(B). On remand, the district court concluded that Silbersher did not
qualify as an original source and dismissed his claims.
Silbersher contends that the district court erred for two reasons. First,
2
Silbersher argues that his complaint does not contain substantially the same
allegations or transactions as those contained in the qualifying public disclosures and
therefore the public disclosure bar is not triggered. Second, Silbersher contends that
if the public disclosure bar is triggered, he can still proceed with the qui tam action
under the original source exception.
We hold that Silbersher waived the argument that the public disclosure bar
does not apply by conceding at a hearing on the first motion to dismiss “that the
relevant information from which the inference of fraud could be drawn is in the
[patent prosecution history].” After that concession, Silbersher expressly agreed
with the district court that the only remaining questions pertained to other issues not
involving the “substantially the same” prong. See United States v. Allergan, Inc., 46
F.4th 991, 996 n.6 (9th Cir. 2022) (declining to consider Silbersher’s argument “that
the information upon which he based his qui tam action was not ‘substantially the
same’ as that which was publicly disclosed” because he waived that argument before
the district court).
Silbersher contends that we should overlook his concession because of our
recent decision in Silbersher v. Valeant Pharmaceuticals International, Inc., 89
F.4th 1154 (9th Cir. 2024). Silbersher asserts that Valeant functions as a “recent
change in the law” that would allow us to consider anew whether he triggers the
public disclosure bar despite his previous concession. See United States v. Patrin,
3
575 F.2d 708, 712 (9th Cir. 1978). We disagree. Silbersher is the same plaintiff as
in Valeant and successfully argued that the public disclosure bar is not triggered.
The same argument that allowed him to do so there was available here, but he
conceded the issue before the district court.
Valeant makes clear that Silbersher’s argument that his expertise allows him
to act as a qui tam relator is assessed under the “substantially the same” prong of the
public disclosure bar, not the original source exception. In Valeant, we allowed
Silbersher to proceed because “the scattered qualifying public disclosures . . . each
contain[ed] a piece of the puzzle, but when pieced together, they fail[ed] to present
the full picture of fraud.” 89 F.4th at 1168. The court in Valeant determined that
Silbersher’s expertise brought those pieces of the puzzle together to “provide a
critical fact necessary for scienter: [defendants] took conflicting positions in their
patent prosecutions.” Id. Silbersher did not trigger the public disclosure bar in
Valeant because “[n]either of [the] patent prosecutions, or any other disclosure,
reveals that fact.” Id.
Silbersher argued in Valeant that he used his expertise to piece together
information and thereby avoided the public disclosure bar. See id. at 1161–63. He
makes the same assertions here. Therefore, Silbersher’s expertise argument is
assessed under the “substantially the same” prong rather than the original source
exception. As laid out above, Silbersher’s November 2020 waiver already conceded
4
that his claims are substantially the same as those in the public patent prosecution
histories. Accordingly, the public disclosure bar applies, and we do not reach his
arguments improperly directed to the “original source” exception.
AFFIRMED.
5
Plain English Summary
NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS JAN 29 2025 MOLLY C.
Key Points
01NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS JAN 29 2025 MOLLY C.
02COURT OF APPEALS FOR THE NINTH CIRCUIT UNITED STATES OF AMERICA, EX REL.
04Spero, Magistrate Judge, Presiding Argued and Submitted November 21, 2024 San Jose, California Before: FRIEDLAND and BUMATAY, Circuit Judges, and KENNELLY,** District Judge.
Frequently Asked Questions
NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS JAN 29 2025 MOLLY C.
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This case was decided on January 29, 2025.
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