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GSK BOOSTRIX False Advertising Class Action Settlement

This settlement closed on June 8, 2026. It resolved a class action against GlaxoSmithKline (GSK) alleging that its 'Big Bad Cough' advertising campaign misled New York residents into getting the Boostrix vaccine primarily to protect others. Eligible claimants who filed in time received either $50 with vaccination proof or $10 without it.

⛔ This settlement is closed. The claim deadline was June 8, 2026. It’s listed here for reference — the claim window has closed. Browse settlements open for claims →
Potential payment
$10

Boostrix vaccination during the class period; $10 without proof

Claimants who submitted qualifying proof of their Boostrix vaccination received $50. Those who filed without proof received $10.

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Official site: www.bigbadcoughsettlement.com

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Pending final court approval: you can file a claim now, but payments begin only after the court grants final approval (and any appeals conclude). Final approval is not guaranteed.

Who may qualify

New York residents who saw GSK's 'Big Bad Cough' advertising campaign between 2015 and 2020 and got the Boostrix vaccine between May 20, 2016 and May 20, 2020 believing it would protect someone else.

Official eligibility wording

Adults who viewed the Big Bad Cough advertising campaign between 2015-2020, lived in New York or received vaccination there, and received Boostrix between May 20, 2016 and May 20, 2020 to protect someone else from pertussis.

This summary is based on available official settlement sources. The settlement administrator determines eligibility and payment approval.

New to the terms? Plain-English: claim deadline, proof of purchase, administrator, pro rata.

Important dates

Claim deadline
June 8, 2026 (closed)
Exclusion deadline
May 11, 2026 (passed)
Objection deadline
May 11, 2026 (passed)

Proof requirements

Proof requirement is currently marked as Optional.

Review the official claim form before submitting any information.

What you need

Claimants had to submit a claim form and could optionally provide proof of their Boostrix vaccination during the class period; filing with proof qualified for a higher payment.

How to file this claim

You must submit a claim form to receive a payment — there is no automatic distribution. You can file online or by mailing a paper form to the settlement administrator. This claim form asks for 8 fields and 3 documents.

  1. Go to the online claim form at www.BigBadCoughSettlement.com/submit-claim or download and print the PDF claim form
  2. Fill in your name, address, and contact details
  3. Check the boxes that confirm you saw the Big Bad Cough ad, received BOOSTRIX in New York or while living in New York, and received it to protect someone else from pertussis
  4. Provide the approximate date and location of vaccination, the name of the provider or pharmacy, and the name(s) of the person(s) you sought to protect
  5. Attach qualifying proof of vaccination if you have it (optional, but increases payout)
  6. Select your preferred payment method: Venmo, Zelle, virtual prepaid card, or paper check
  7. Sign and date the form, then submit online or mail to: Big Bad Cough Settlement, Attn: Claim Forms, 1650 Arch St., Suite 2210, Philadelphia, PA 19103

What the form asks

  • — Your legal name, mailing address, and contact information (Your personal records)
  • — Check boxes confirming you saw the ad, received BOOSTRIX in New York, and received it to protect someone else (Your memory of the ad campaign and vaccination circumstances)
  • — The approximate date you received the BOOSTRIX vaccine during the class period (Medical records, pharmacy receipts, insurance explanation-of-benefits, or personal calendar)
  • — The city, state, or facility where you received the BOOSTRIX vaccine (Medical records or pharmacy receipts)
  • — The name of the health care provider or pharmacy that gave you the vaccine (Medical records, vaccine card, or pharmacy receipt)
  • — The name(s) of the person or people you were trying to protect from pertussis when you got vaccinated (Your personal recollection)
  • — Choose one: Venmo, Zelle, virtual prepaid card, or paper check (Your preference)
  • — Your signature (or electronic equivalent) and the date you are signing (Sign yourself)

Documents you'll need

Watch out for

  • The claim deadline has passed — verify with the settlement administrator whether late claims are accepted
  • Women who received BOOSTRIX while pregnant are excluded from the class and cannot claim
  • You must have received BOOSTRIX specifically to protect one or more other individuals, not just for your own protection
  • Without proof of vaccination you receive a lower payment; attach documentation if available to maximize your payout
  • Proof documents must have been created before Feb. 10, 2025 to qualify

We prepare — you file on the official site yourself. This is not legal advice and is not an eligibility decision; the administrator and court decide.

How do I file a claim for this settlement?

This record no longer has an open public claim form — confirm the current status and any next steps on the official source.

  1. Confirm you are within the eligible group described in the official notice — the settlement administrator determines eligibility.
  2. Gather any documents the official form asks for — this settlement marks proof as Optional.
  3. Open the official claim form or settlement website run by Angeion Group.
  4. Submit accurate information through the official settlement administrator or government source before June 8, 2026.
  5. Save your confirmation number if one is provided, then watch the payment status for distribution updates.

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How we verified this record

Verification in progress 7 / 8 fields checked
  • Claim deadline the official settlement website · Jun 19, 2026
  • Payout details the official settlement website · Jun 19, 2026
  • Eligibility the official settlement website · Jun 19, 2026
  • Proof requirement the official settlement website · Jun 19, 2026
  • Administrator the official settlement website · Jun 19, 2026
  • Court case the official settlement website · Jun 19, 2026
  • Payment status the official settlement website · Jun 19, 2026
  • Official claim link queued for re-check

Every published record clears our source-verification bar; remaining fields are checked one by one on our weekly re-verification pass.

Checked fields are matched against a named official source and re-checked on a schedule. We show the authority and the date, never our internal evidence link.

  • Claim deadline

    June 8, 2026

    Verified Jun 19, 2026 · against the official settlement website

  • Eligibility summary

    Adults who viewed the Big Bad Cough advertising campaign between 2015-2020, lived in New York or received vaccination there, and received Boostrix between May 20, 2016 and May 20, 2020 to protect someone else from pertussis.

    Verified Jun 19, 2026 · against the official settlement website

  • Proof requirement

    Optional

    Verified Jun 19, 2026 · against the official settlement website

  • Payment status

    Final approval pending

    Verified Jun 19, 2026 · against the official settlement website

  • Estimated payout

    Boostrix vaccination during the class period; $10 without proof

    Verified Jun 19, 2026 · against the official settlement website

  • Administrator

    Angeion Group

    Verified Jun 19, 2026 · against the official settlement website

Show all 7 more verified fields
  • Objection deadline

    May 11, 2026

    Verified Jun 19, 2026 · against the official settlement website

    Class members may exclude themselves or object by May 11, 2026.
  • Opt-out deadline

    May 11, 2026

    Verified Jun 19, 2026 · against the official settlement website

    Class members may exclude themselves or object by May 11, 2026.
  • Class period start

    May 20, 2016

    Verified Jun 19, 2026 · against the official settlement website

  • Class period end

    May 20, 2020

    Verified Jun 19, 2026 · against the official settlement website

  • Court

    United States District Court for the Eastern District of New York

    Verified Jun 19, 2026 · against the official settlement website

  • Court case number

    2:21-cv-04869-NJC-AYS

    Verified Jun 19, 2026 · against the official settlement website

  • Case name

    DeCostanzo v. GlaxoSmithKline plc et al.

    Verified Jun 19, 2026 · against the official settlement website

Common questions

Is the GSK BOOSTRIX False Advertising Class Action settlement legitimate?

Yes — the GSK BOOSTRIX False Advertising Class Action settlement is a real claims process that SettleSignal tracks from its official source. It is administered by Angeion Group under case 2:21-cv-04869-NJC-AYS in United States District Court for the Eastern District of New York. File only through the official settlement website (www.bigbadcoughsettlement.com); a genuine settlement administrator never charges a fee to file. SettleSignal last checked this record against the official source on June 19, 2026. Always confirm the current details on the official site before filing.

Who may qualify for this settlement?

Adults who viewed the Big Bad Cough advertising campaign between 2015-2020, lived in New York or received vaccination there, and received Boostrix between May 20, 2016 and May 20, 2020 to protect someone else from pertussis.

What is the claim deadline?

The claim deadline is June 8, 2026. Confirm the current deadline on the official settlement source before filing.

Do I need proof to claim?

Proof requirement: Optional. The settlement administrator determines what documentation, if any, is required.

What is the current payment status?

Current payment status: Final approval pending. Payments are issued by the administrator after the court process concludes.

When will GSK BOOSTRIX False Advertising Class Action Settlement pay out?

Current payment status: Final approval pending. Class-action payouts typically begin only after final approval and any appeals. See our payout timeline guide.

Where is the official GSK BOOSTRIX False Advertising Class Action Settlement claim form?

The official claim form is hosted by the settlement administrator, Angeion Group. Use the 'Open official claim form' button on this page — never pay a fee to file.

Can I still file a claim?

No. The claim deadline was June 8, 2026, and claims are now closed. New submissions are no longer accepted.

What was the GlaxoSmithKline Boostrix settlement about?

The lawsuit, DeCostanzo v. GlaxoSmithKline, alleged that GSK's 'Big Bad Cough' ad campaign misled New York consumers into getting the Boostrix (Tdap) vaccine under the impression it would shield other people — such as newborns — from whooping cough.

Who qualified for this settlement?

People who lived in New York and both viewed the 'Big Bad Cough' campaign between 2015 and 2020 AND received a Boostrix vaccination in New York between May 20, 2016 and May 20, 2020 with the intent to protect someone else.

How much did claimants receive?

Eligible claimants received $50 if they submitted qualifying vaccination proof, or $10 if they filed without proof.

Who administered this settlement?

Angeion Group served as the settlement administrator. The case was overseen by the U.S. District Court for the Eastern District of New York, with a fairness hearing scheduled for July 2, 2026.

Where to act

When you are ready, you open the official claim form yourself. SettleSignal does not file claims or determine eligibility.

No public claim form

The claim deadline (Jun 08, 2026) has passed — this settlement is closed to new claims. Listed for reference.

Listed on the official settlement website (Angeion Group).

Disclaimer

This service summarizes publicly available settlement information and links to official settlement sources. We are not a law firm, do not provide legal advice, do not submit claims on your behalf, and do not determine eligibility or payout approval. Only file a claim if the information you provide is accurate.

Change log

  • June 20, 2026 — Settlement published after verification.
  • June 19, 2026 — Verified field details updated from an official source.