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[8-K] Dyne Therapeutics, Inc. Reports Material Event

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
8-K
Rhea-AI Filing Summary

Dyne Therapeutics (Nasdaq: DYN) filed an 8-K stating that the U.S. FDA has granted Breakthrough Therapy Designation (BTD) to its investigational antisense oligonucleotide DYNE-251 for Duchenne muscular dystrophy patients amenable to exon 51 skipping. BTD provides earlier, more frequent FDA interactions and eligibility for priority review, potentially shortening time to market if efficacy and safety are confirmed. The filing furnishes, but does not file, the related press release as Exhibit 99.1 and contains no financial statements, trial data, or updated guidance. Management characterizes the event as material under Regulation FD, signaling strategic importance to Dyne’s pipeline and future revenue prospects, but investors must note that DYNE-251 still requires successful pivotal studies and eventual FDA approval.

Dyne Therapeutics (Nasdaq: DYN) ha presentato un modulo 8-K annunciando che la FDA statunitense ha concesso la Designazione di Terapia Innovativa (BTD) al suo oligonucleotide antisenso sperimentale DYNE-251 per pazienti con distrofia muscolare di Duchenne idonei al salto dell'esone 51. La BTD consente interazioni anticipate e più frequenti con la FDA e l'accesso alla revisione prioritaria, potenzialmente accelerando l'immissione sul mercato se efficacia e sicurezza saranno confermate. La documentazione include, ma non deposita, il comunicato stampa correlato come Allegato 99.1 e non contiene bilanci finanziari, dati di studi clinici o aggiornamenti sulle previsioni. La direzione considera l'evento rilevante ai sensi del Regolamento FD, sottolineando l'importanza strategica per il portafoglio prodotti di Dyne e le prospettive di ricavi futuri, ma gli investitori devono essere consapevoli che DYNE-251 necessita ancora di studi pivotali di successo e della successiva approvazione FDA.

Dyne Therapeutics (Nasdaq: DYN) presentó un formulario 8-K indicando que la FDA de EE.UU. ha otorgado la Designación de Terapia Innovadora (BTD) a su oligonucleótido antisentido experimental DYNE-251 para pacientes con distrofia muscular de Duchenne aptos para el salto del exón 51. La BTD permite interacciones más tempranas y frecuentes con la FDA y la elegibilidad para revisión prioritaria, lo que podría acortar el tiempo hasta la comercialización si se confirman la eficacia y la seguridad. La presentación incluye, pero no presenta formalmente, el comunicado de prensa relacionado como Anexo 99.1 y no contiene estados financieros, datos de ensayos ni actualizaciones de pronósticos. La dirección considera el evento como material bajo la Regulación FD, señalando su importancia estratégica para la cartera de Dyne y las perspectivas de ingresos futuros, pero los inversores deben tener en cuenta que DYNE-251 aún requiere estudios pivotales exitosos y la aprobación final de la FDA.

Dyne Therapeutics(Nasdaq: DYN)� 8-K 보고서를 제출하여 미국 FDA가 실험� 안티센스 올리고뉴클레오티� DYNE-251� 대� 혁신 치료� 지�(BTD)� 승인했다� 밝혔습니�. 이는 엑손 51 스키핑이 가능한 뒤센 근이영양� 환자� 위한 것입니다. BTD� FDA와� 조기 � 빈번� 소통� 우선 심사 자격� 제공하여, 효능� 안전성이 확인� 경우 시장 출시 기간� 단축� � 있습니다. 제출 문서에는 관� 보도자료가 Exhibit 99.1� 포함되어 있으� 공식 제출은 아니�, 재무제표, 임상 데이� 또는 업데이트� 가이던스는 포함되어 있지 않습니다. 경영진은 � 사건� Regulation FD� 따른 중요 사건으로 분류하며, 이는 Dyne� 파이프라인과 향후 수익 전망� 전략� 중요성을 나타내지�, 투자자들은 DYNE-251� 성공적인 중추 임상시험� FDA 최종 승인� 아직 받아� 함을 유념해야 합니�.

Dyne Therapeutics (Nasdaq : DYN) a déposé un formulaire 8-K indiquant que la FDA américaine a accordé la Désignation de Thérapie Innovante (BTD) à son oligonucléotide antisens expérimental DYNE-251 destiné aux patients atteints de dystrophie musculaire de Duchenne susceptibles de bénéficier du saut de l'exon 51. La BTD permet des interactions plus précoces et fréquentes avec la FDA ainsi qu'une éligibilité à la révision prioritaire, ce qui pourrait raccourcir le délai de mise sur le marché si l'efficacité et la sécurité sont confirmées. Le dépôt inclut, sans le déposer formellement, le communiqué de presse associé en tant qu'Exhibit 99.1 et ne contient aucun état financier, données d'essais ou mise à jour des prévisions. La direction considère cet événement comme significatif selon le Règlement FD, soulignant son importance stratégique pour le portefeuille de Dyne et les perspectives de revenus futurs, mais les investisseurs doivent noter que DYNE-251 nécessite encore des études pivots réussies et l'approbation finale de la FDA.

Dyne Therapeutics (Nasdaq: DYN) hat in einem 8-K-Bericht mitgeteilt, dass die US-amerikanische FDA dem experimentellen Antisense-Oligonukleotid DYNE-251 für Duchenne-Muskeldystrophie-Patienten, die für das Überspringen von Exon 51 geeignet sind, die Breakthrough Therapy Designation (BTD) erteilt hat. Die BTD ermöglicht frühere und häufigere Interaktionen mit der FDA sowie die Berechtigung zur ʰǰäٲüڳܲԲ, was die Markteinführung bei bestätigter Wirksamkeit und Sicherheit verkürzen könnte. Die Einreichung enthält, reicht jedoch nicht ein, die zugehörige Pressemitteilung als Anlage 99.1 und enthält keine Finanzberichte, Studiendaten oder aktualisierte Prognosen. Das Management stuft das Ereignis als wesentlich gemäß Regulation FD ein und hebt die strategische Bedeutung für Dynes Pipeline und zukünftige Umsatzerwartungen hervor, weist jedoch darauf hin, dass DYNE-251 noch erfolgreiche Schlüsselerhebungen und die endgültige FDA-Zulassung benötigt.

Positive
  • FDA Breakthrough Therapy Designation accelerates development timeline and signals strong preliminary efficacy for lead asset DYNE-251.
  • Regulatory milestone enhances Dyne’s negotiating leverage for capital raises or strategic partnerships.
Negative
  • The filing lacks new clinical, financial, or timeline details, leaving uncertainty around cost, study design and ultimate approval likelihood.
  • BTD does not guarantee market approval; failure in later-stage trials could negate the benefit and hurt valuation.

Insights

TL;DR: Breakthrough status materially de-risks DYNE-251 and can accelerate approval, lifting Dyne’s valuation; commercial realization still hinges on pivotal data.

The BTD signals compelling preliminary efficacy in early data and gives Dyne priority access to senior FDA reviewers, rolling submissions and potential six-month review. Given exon 51 mutations cover ~13% of DMD patients, peak U.S. sales could exceed $1 bn if competitive profile holds. The designation strengthens Dyne’s bargaining power for future financings or partnerships. However, the absence of new clinical or safety metrics means true risk profile is unchanged until mid-stage readouts expected 2026. Overall market reaction should be positive but measured.

TL;DR: BTD provides faster FDA engagement but does not guarantee approval; Dyne must still meet rigorous efficacy and CMC standards.

BTD requires preliminary evidence of substantial improvement over existing therapy, so FDA sees promise in DYNE-251’s exon-skipping efficiency. The designation allows for intensive guidance on trial design, potentially reducing Phase 3 size and aligning CMC expectations early. Priority Review eligibility could trim review time to six months, accelerating launch by up to four months over standard pathways. Nevertheless, loss of benefit data or manufacturing issues can revoke the status. Investors should watch for upcoming protocol amendments and confirmatory study timelines.

Dyne Therapeutics (Nasdaq: DYN) ha presentato un modulo 8-K annunciando che la FDA statunitense ha concesso la Designazione di Terapia Innovativa (BTD) al suo oligonucleotide antisenso sperimentale DYNE-251 per pazienti con distrofia muscolare di Duchenne idonei al salto dell'esone 51. La BTD consente interazioni anticipate e più frequenti con la FDA e l'accesso alla revisione prioritaria, potenzialmente accelerando l'immissione sul mercato se efficacia e sicurezza saranno confermate. La documentazione include, ma non deposita, il comunicato stampa correlato come Allegato 99.1 e non contiene bilanci finanziari, dati di studi clinici o aggiornamenti sulle previsioni. La direzione considera l'evento rilevante ai sensi del Regolamento FD, sottolineando l'importanza strategica per il portafoglio prodotti di Dyne e le prospettive di ricavi futuri, ma gli investitori devono essere consapevoli che DYNE-251 necessita ancora di studi pivotali di successo e della successiva approvazione FDA.

Dyne Therapeutics (Nasdaq: DYN) presentó un formulario 8-K indicando que la FDA de EE.UU. ha otorgado la Designación de Terapia Innovadora (BTD) a su oligonucleótido antisentido experimental DYNE-251 para pacientes con distrofia muscular de Duchenne aptos para el salto del exón 51. La BTD permite interacciones más tempranas y frecuentes con la FDA y la elegibilidad para revisión prioritaria, lo que podría acortar el tiempo hasta la comercialización si se confirman la eficacia y la seguridad. La presentación incluye, pero no presenta formalmente, el comunicado de prensa relacionado como Anexo 99.1 y no contiene estados financieros, datos de ensayos ni actualizaciones de pronósticos. La dirección considera el evento como material bajo la Regulación FD, señalando su importancia estratégica para la cartera de Dyne y las perspectivas de ingresos futuros, pero los inversores deben tener en cuenta que DYNE-251 aún requiere estudios pivotales exitosos y la aprobación final de la FDA.

Dyne Therapeutics(Nasdaq: DYN)� 8-K 보고서를 제출하여 미국 FDA가 실험� 안티센스 올리고뉴클레오티� DYNE-251� 대� 혁신 치료� 지�(BTD)� 승인했다� 밝혔습니�. 이는 엑손 51 스키핑이 가능한 뒤센 근이영양� 환자� 위한 것입니다. BTD� FDA와� 조기 � 빈번� 소통� 우선 심사 자격� 제공하여, 효능� 안전성이 확인� 경우 시장 출시 기간� 단축� � 있습니다. 제출 문서에는 관� 보도자료가 Exhibit 99.1� 포함되어 있으� 공식 제출은 아니�, 재무제표, 임상 데이� 또는 업데이트� 가이던스는 포함되어 있지 않습니다. 경영진은 � 사건� Regulation FD� 따른 중요 사건으로 분류하며, 이는 Dyne� 파이프라인과 향후 수익 전망� 전략� 중요성을 나타내지�, 투자자들은 DYNE-251� 성공적인 중추 임상시험� FDA 최종 승인� 아직 받아� 함을 유념해야 합니�.

Dyne Therapeutics (Nasdaq : DYN) a déposé un formulaire 8-K indiquant que la FDA américaine a accordé la Désignation de Thérapie Innovante (BTD) à son oligonucléotide antisens expérimental DYNE-251 destiné aux patients atteints de dystrophie musculaire de Duchenne susceptibles de bénéficier du saut de l'exon 51. La BTD permet des interactions plus précoces et fréquentes avec la FDA ainsi qu'une éligibilité à la révision prioritaire, ce qui pourrait raccourcir le délai de mise sur le marché si l'efficacité et la sécurité sont confirmées. Le dépôt inclut, sans le déposer formellement, le communiqué de presse associé en tant qu'Exhibit 99.1 et ne contient aucun état financier, données d'essais ou mise à jour des prévisions. La direction considère cet événement comme significatif selon le Règlement FD, soulignant son importance stratégique pour le portefeuille de Dyne et les perspectives de revenus futurs, mais les investisseurs doivent noter que DYNE-251 nécessite encore des études pivots réussies et l'approbation finale de la FDA.

Dyne Therapeutics (Nasdaq: DYN) hat in einem 8-K-Bericht mitgeteilt, dass die US-amerikanische FDA dem experimentellen Antisense-Oligonukleotid DYNE-251 für Duchenne-Muskeldystrophie-Patienten, die für das Überspringen von Exon 51 geeignet sind, die Breakthrough Therapy Designation (BTD) erteilt hat. Die BTD ermöglicht frühere und häufigere Interaktionen mit der FDA sowie die Berechtigung zur ʰǰäٲüڳܲԲ, was die Markteinführung bei bestätigter Wirksamkeit und Sicherheit verkürzen könnte. Die Einreichung enthält, reicht jedoch nicht ein, die zugehörige Pressemitteilung als Anlage 99.1 und enthält keine Finanzberichte, Studiendaten oder aktualisierte Prognosen. Das Management stuft das Ereignis als wesentlich gemäß Regulation FD ein und hebt die strategische Bedeutung für Dynes Pipeline und zukünftige Umsatzerwartungen hervor, weist jedoch darauf hin, dass DYNE-251 noch erfolgreiche Schlüsselerhebungen und die endgültige FDA-Zulassung benötigt.

false000181879400018187942025-08-042025-08-04

 

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

 

FORM 8-K

 

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of report (Date of earliest event reported): August 4, 2025

 

Dyne Therapeutics, Inc.

(Exact Name of Registrant as Specified in Charter)

 

Delaware

001-39509

36-4883909

(State or Other Jurisdiction

of Incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

 

 

 

1560 Trapelo Road

Waltham, Massachusetts

 

02451

(Address of Principal Executive Offices)

 

(Zip Code)

 

Registrant’s telephone number, including area code: (781) 786-8230

Not applicable

(Former Name or Former Address, if Changed Since Last Report)

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class

Trading symbol(s)

Name of each exchange on which registered

Common stock, $0.0001 par value per share

DYN

Nasdaq Global Select Market

 

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

 

 


 

Item 7.01 Regulation FD Disclosure.

 

On August 4, 2025, Dyne Therapeutics, Inc. (the “Company”) issued a press release announcing that the U.S. Food and Drug Administration (“FDA”) granted Breakthrough Therapy Designation to DYNE-251 for the treatment of patients with Duchenne muscular dystrophy (“DMD”), amenable to exon 51 skipping. A copy of the press release is furnished as Exhibit 99.1 hereto and is incorporated herein by reference.

The information furnished under this Item 7.01, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 8.01 Other Events.

On August 4, 2025, the Company issued a press release announcing that the FDA granted Breakthrough Therapy Designation to DYNE-251 for the treatment of patients with DMD, amenable to exon 51 skipping.

 

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

 

Exhibit No.

Description

 

 

 

99.1

104

Press Release issued by Dyne Therapeutics, Inc. on August 4, 2025

Cover Page Interactive Data File (embedded within the Inline XBRL document)

 

 


 

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

 

 

 

 

 

 

 

 

DYNE THERAPEUTICS, INC.

 

 

 

Date: August 4, 2025

By:

/s/ John G. Cox

 

 

Name:

John G. Cox

 

 

Title:

President and Chief Executive Officer

 

 


FAQ

What did the FDA grant to Dyne Therapeutics (DYN)?

Breakthrough Therapy Designation for DYNE-251 targeting DMD patients amenable to exon 51 skipping.

Why is Breakthrough Therapy Designation important for DYN investors?

BTD offers priority review, rolling submissions and enhanced FDA guidance, potentially accelerating commercialization.

Does the 8-K include new financial or clinical data on DYNE-251?

No. The filing only discloses the regulatory designation and references a press release; no new data are provided.

What patient population does DYNE-251 target?

Duchenne muscular dystrophy patients with mutations amenable to exon 51 skipping, roughly 13% of the DMD population.

Is Breakthrough Therapy Designation a guarantee of FDA approval?

No. DYNE-251 must still complete pivotal trials and meet efficacy, safety and CMC requirements before approval.
Dyne Therapeutics, Inc.

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