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[8-K] ARVINAS, INC. Reports Material Event

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Arvinas, Inc. presented late-breaking Phase 1 clinical data for ARV-102, a PROTAC LRRK2 degrader, showing brain penetration and strong target reduction in early trials. In healthy volunteers, single doses up to 200 mg and multiple daily doses up to 80 mg were generally well tolerated with no discontinuations for adverse events. Repeated daily doses ≥20 mg produced > 90% reductions in LRRK2 protein in blood cells and > 50% reductions in cerebrospinal fluid (CSF); pathway biomarkers (phospho-Rab10T73 and urine BMP) were reduced.

In a small Parkinson’s cohort (15 treated, 4 placebo), single doses of 50 mg and 200 mg were well tolerated with only mild treatment-related AEs. Median PBMC LRRK2 reductions were 86% at 50 mg and 97% at 200 mg. CSF proteomics after 14 days of 80 mg daily dosing in volunteers showed decreased lysosomal and neuroinflammatory markers. The company plans to present multiple-dose patient data in 2026 and intends to advance ARV-102 development.

Arvinas, Inc. ha presentato dati clinici di fase 1 di grande attualità per ARV-102, un degrador PROTAC di LRRK2, dimostrando penetrazione nel cervello e una forte riduzione del bersaglio in trial iniziali. In soggetti sani, dosi singole fino a 200 mg e dosi multiple quotidiane fino a 80 mg sono state generalmente ben tollerate senza interruzioni per eventi avversi. Dosi ripetute quotidiane ≥20 mg hanno prodotto una riduzione di > 90% della proteina LRRK2 nelle cellule del sangue e > 50% nel liquor CSF; anche i biomarcatori di percorso (phospho-Rab10T73 e BMP urinario) sono stati ridotti.

In una piccola coorte di Parkinson (15 trattati, 4 placebo), dosi singole di 50 mg e 200 mg sono state ben tollerate con solo eventi avversi lievi correlati al trattamento. Le riduzioni medie di LRRK2 nei PBMC sono state 86% a 50 mg e 97% a 200 mg. La proteomica CSF dopo 14 giorni di dosing giornaliero di 80 mg ha mostrato una diminuzione di marcatori lisosomiali e neuroinfiammatori. L’azienda prevede di presentare dati su pazienti a dosi multiple nel 2026 e intende avanti lo sviluppo di ARV-102.

Arvinas, Inc. presentó datos clínicos de fase 1 de última hora para ARV-102, un degrador PROTAC de LRRK2, que mostró penetración cerebral y una fuerte reducción del objetivo en ensayos tempranos. En voluntarios sanos, dosis únicas de hasta 200 mg y dosis diarias múltiples de hasta 80 mg fueron generalmente bien toleradas, sin interrupciones por eventos adversos. Dosis diarias repetidas ≥20 mg provocaron reducciones de > 90% de la proteína LRRK2 en células sanguíneas y > 50% en el líquido cefalorraquídeo (LCR); también se redujeron biomarcadores del camino (phospho-Rab10T73 y BMP en orina).

En una pequeña cohorte de Parkinson (15 tratados, 4 placebo), dosis únicas de 50 mg y 200 mg fueron bien toleradas con solo eventos adversos related al tratamiento leves. Las reducciones medias de LRRK2 en PBMC fueron 86% a 50 mg y 97% a 200 mg. La proteómica del LCR después de 14 días de dosificación diaria de 80 mg mostró una disminución de marcadores lisosomales y neuroinflamatorios. La empresa planea presentar datos de pacientes con dosis múltiples en 2026 y tiene la intención de avanzar el desarrollo de ARV-102.

Arvinas, Inc. 는 ARV-102, LRRK2 프로탁( PROTAC ) 디그레이더에 대한 최종 1상 임상 데이터를 발표했습니다. 뇌 침투 및 초기 시험에서 표적 감소가 강하게 나타났습니다. 건강한 지원자에서 200 mg까지의 단회 용량과 80 mg까지의 일일 다중용량이 일반적으로 내약성이 양호했고 부작용으로 인한 중단은 없었습니다. 반복적인 일일 용량 ≥20 mg에서 혈액 세포의 LRRK2 단백질이 > 90% 감소하고 CSF에서 > 50% 감소가 관찰되었습니다. 경로 바이오마커(phospho-Rab10T73 및 소변 BMP)도 감소했습니다.

작은 파킨슨병 코호트(15명 치료, 4명 위약)에서 단회 용량 50 mg200 mg은 치료 관련 경미한 AE만으로 잘 견뎌졌습니다. PBMC LRRK2의 중앙값 감소는 50 mg에서 86%, 200 mg에서 97%였습니다. 80 mg의 일일 투여를 14일간 진행한 건강인 CSF의 프로테오믹스에서 리소좀성 및 신경염증성 마커 감소가 관찰되었습니다. 회사는 2026년에 다중용량 환자 데이터를 발표하고 ARV-102 개발을 추진할 계획입니다.

Arvinas, Inc. a présenté des données cliniques de phase 1 de dernière minute pour l ARV-102, un dégradateur PROTAC de LRRK2, démontrant une pénétration cérébrale et une forte réduction de la cible lors des essais préliminaires. Chez les volontaires sains, des doses uniques allant jusqu'à 200 mg et des doses quotidiennes multiples jusqu'à 80 mg ont été généralement bien tolérées sans interruptions pour effets indésirables. Des doses quotidiennes répétées ≥20 mg ont produit des réductions de > 90% de la protéine LRRK2 dans les leucocytes et > 50% dans le liquide céphalo-rachidien (LCR); les biomarqueurs de voie (phospho-Rab10T73 et BMP urinaire) ont également diminué.

Dans une petite cohorte de Parkinson (15 traités, 4 placebo), des doses uniques de 50 mg et 200 mg ont été bien tolérées avec seulement des effets indésirables associés au traitement légers. Les réductions médianes de LRRK2 dans les PBMC étaient 86% à 50 mg et 97% à 200 mg. La protéomique du LCR après 14 jours de posologie quotidienne de 80 mg a montré une diminution des marqueurs lysosomaux et neuroinflammatoires. L’entreprise prévoit de présenter des données sur les patients à doses multiples en 2026 et compte faire progresser le développement d’ARV-102.

Arvinas, Inc. präsentierte aktuelle Phasen-1-Daten zu ARV-102, einem PROTAC-LLRK2-Degrader, die Hirnpenetration und eine starke Zielreduzierung in frühen Studien zeigten. Bei gesunden Freiwilligen dauerten Einzeldosen bis zu 200 mg und mehrfache tägliche Dosen bis zu 80 mg in der Regel gut verträglich, ohne Abbruch aufgrund von Nebenwirkungen. Wiederholte tägliche Dosen ≥20 mg führten zu > 90% Reduktionen des LRRK2-Proteins in Blutkörperchen und > 50% Reduktionen im zerebrospinalflüssigen Liquor (CSF); Weg-Biomarker (phospho-Rab10T73 und Urin BMP) wurden ebenfalls reduziert.

In einer kleinen Parkinson-Kohorte (15 behandelt, 4 Placebo) waren Einzeldosen von 50 mg und 200 mg gut verträglich mit nur milden behandlungsbedingten unerwünschten Nebenwirkungen. Die medianen LRRK2-Reduktionen in PBMC betrugen 86% bei 50 mg und 97% bei 200 mg. Die CSF-Proteomik nach 14 Tagen täglicher 80-mg-Dosierung zeigte verringerte lysosomale und neuroinflammatorische Marker. Das Unternehmen plant, 2026 Daten zu Mehrfachdosen von Patienten zu präsentieren und beabsichtigt, die Entwicklung von ARV-102 voranzutreiben.

Arvinas, Inc. قدمت بيانات سريرية من المرحلة 1 حديثة لـ ARV-102، مُدَمِّر PROTAC لـ LRRK2، مُظهِرة اختراقًا دماغيًا وتخفيضًا قويًا للأهداف في التجارب المبكرة. في المتطوعين الأصحاء، كانت الجرعات الأحادية حتى 200 mg والجرعات اليومية المتعددة حتى 80 mg في الغالب متوافقة بشكل جيد مع عدم الإيقاف بسبب أحداث سلبية. الجرعات اليومية المتكررة ≥20 mg أدت إلى تخفيضات > 90% لبروتين LRRK2 في خلايا الدم و> 50% في السائل الدماغي النخاعي (CSF)؛ كما انخفضت علامات المسار البيولوجي (phospho-Rab10T73 وBMP البولية).

في مجموعة Parkinson’s الصغيرة (15 مُعاملًا، 4_placebo)، كانت الجرعات الأحادية من 50 mg و 200 mg مُتحملة جيدًا مع آثار جانبية طفيفة فقط مرتبطة بالعلاج. انخفاضات LRRK2 في PBMC المتوسطة كانت 86% عند 50 mg و 97% عند 200 mg. أظهرت البروتيوميك CSF بعد 14 يومًا من الجرعة اليومية 80 mg انخفاضًا في علامات الليسوسومية والالتهاب العصبي. تخطط الشركة لعرض بيانات المرضى بجرعات متعددة في 2026 وتعتزم المضي قدمًا في تطوير ARV-102.

Arvinas, Inc. 提供了 ARV-102 的最新一期1期临床数据,这是一个针对 LRRK2 的 PROTAC 降解剂,显示出大脑穿透力和早期试验中的强靶点降低。在健康志愿者中,单次剂量可达 200 mg,每日多次剂量可达 80 mg,总体耐受性良好,未因不良事件停止研究。重复日剂量 ≥20 mg 可在血细胞中实现 > 90% 的 LRRK2 蛋白降低,在脑脊液(CSF)中降低 > 50%;路径生物标志物(phospho-Rab10T73 和尿液 BMP)亦有下降。

在一个小型帕金森病队列(15 例治疗,4 例安慰剂)中,单次剂量 50 mg200 mg 均耐受良好,仅有轻度与治疗相关的不良事件。PBMC 的中位数 LRRK2 降幅在 50 mg 时为 86%,在 200 mg 时为 97%。14 天日用 80 mg 给药后 CSF 的蛋白质组学显示溶酶体和神经炎性标志物下降。公司计划在 2026 年公布多剂量患者数据,并意在推进 ARV-102 的开发。

Positive
  • Brain penetration demonstrated by measurable ARV-102 in CSF
  • Robust target knockdown: > 90% PBMC LRRK2 reduction at repeated doses, up to 97% in patients
  • Favorable early safety: no SAEs and no discontinuations in healthy volunteers; mild AEs in Parkinson’s patients
  • Biomarker modulation: reductions in phospho-Rab10T73 and urine BMP and CSF lysosomal/microglial markers
Negative
  • Small patient sample: only 15 treated Parkinson’s patients and 4 placebo limit generalizability
  • Patient data mostly single-dose: multiple-dose patient data pending in 2026, delaying assessment of repeat-dose safety and durability
  • Interim results without clinical efficacy endpoints reported yet

Insights

Phase 1 signals show tolerability, CNS exposure, and robust target knockdown.

The tolerability profile—no discontinuations and only mild AEs in a small Parkinson's cohort—supports continued dosing exploration. Observed CSF concentrations confirm brain penetration, a critical prerequisite for CNS-targeted LRRK2 degradation.

Risks include small sample sizes (15 treated patients) and single‑dose data for patients; the planned multiple‑dose data in 2026 will be important to confirm durability, safety on repeat dosing, and dose selection for later trials.

Pharmacodynamic biomarkers show on‑target activity consistent with LRRK2 degradation.

Repeated doses ≥20% (note: the study reports doses ≥20 mg) produced > 90% PBMC LRRK2 reduction and > 50% CSF reduction, while phospho‑Rab10T73 and urine BMP fell—these are concrete pathway changes linking target engagement to downstream lysosomal biology.

Proteomic decreases in CSF lysosomal and microglial markers after 14 days at 80 mg suggest biological effects relevant to Parkinson’s disease with LRRK2 variants; however, clinical correlation to symptoms and longer-term safety will need confirmation in ongoing multiple‑dose cohorts and future patient studies.

Arvinas, Inc. ha presentato dati clinici di fase 1 di grande attualità per ARV-102, un degrador PROTAC di LRRK2, dimostrando penetrazione nel cervello e una forte riduzione del bersaglio in trial iniziali. In soggetti sani, dosi singole fino a 200 mg e dosi multiple quotidiane fino a 80 mg sono state generalmente ben tollerate senza interruzioni per eventi avversi. Dosi ripetute quotidiane ≥20 mg hanno prodotto una riduzione di > 90% della proteina LRRK2 nelle cellule del sangue e > 50% nel liquor CSF; anche i biomarcatori di percorso (phospho-Rab10T73 e BMP urinario) sono stati ridotti.

In una piccola coorte di Parkinson (15 trattati, 4 placebo), dosi singole di 50 mg e 200 mg sono state ben tollerate con solo eventi avversi lievi correlati al trattamento. Le riduzioni medie di LRRK2 nei PBMC sono state 86% a 50 mg e 97% a 200 mg. La proteomica CSF dopo 14 giorni di dosing giornaliero di 80 mg ha mostrato una diminuzione di marcatori lisosomiali e neuroinfiammatori. L’azienda prevede di presentare dati su pazienti a dosi multiple nel 2026 e intende avanti lo sviluppo di ARV-102.

Arvinas, Inc. presentó datos clínicos de fase 1 de última hora para ARV-102, un degrador PROTAC de LRRK2, que mostró penetración cerebral y una fuerte reducción del objetivo en ensayos tempranos. En voluntarios sanos, dosis únicas de hasta 200 mg y dosis diarias múltiples de hasta 80 mg fueron generalmente bien toleradas, sin interrupciones por eventos adversos. Dosis diarias repetidas ≥20 mg provocaron reducciones de > 90% de la proteína LRRK2 en células sanguíneas y > 50% en el líquido cefalorraquídeo (LCR); también se redujeron biomarcadores del camino (phospho-Rab10T73 y BMP en orina).

En una pequeña cohorte de Parkinson (15 tratados, 4 placebo), dosis únicas de 50 mg y 200 mg fueron bien toleradas con solo eventos adversos related al tratamiento leves. Las reducciones medias de LRRK2 en PBMC fueron 86% a 50 mg y 97% a 200 mg. La proteómica del LCR después de 14 días de dosificación diaria de 80 mg mostró una disminución de marcadores lisosomales y neuroinflamatorios. La empresa planea presentar datos de pacientes con dosis múltiples en 2026 y tiene la intención de avanzar el desarrollo de ARV-102.

Arvinas, Inc. 는 ARV-102, LRRK2 프로탁( PROTAC ) 디그레이더에 대한 최종 1상 임상 데이터를 발표했습니다. 뇌 침투 및 초기 시험에서 표적 감소가 강하게 나타났습니다. 건강한 지원자에서 200 mg까지의 단회 용량과 80 mg까지의 일일 다중용량이 일반적으로 내약성이 양호했고 부작용으로 인한 중단은 없었습니다. 반복적인 일일 용량 ≥20 mg에서 혈액 세포의 LRRK2 단백질이 > 90% 감소하고 CSF에서 > 50% 감소가 관찰되었습니다. 경로 바이오마커(phospho-Rab10T73 및 소변 BMP)도 감소했습니다.

작은 파킨슨병 코호트(15명 치료, 4명 위약)에서 단회 용량 50 mg200 mg은 치료 관련 경미한 AE만으로 잘 견뎌졌습니다. PBMC LRRK2의 중앙값 감소는 50 mg에서 86%, 200 mg에서 97%였습니다. 80 mg의 일일 투여를 14일간 진행한 건강인 CSF의 프로테오믹스에서 리소좀성 및 신경염증성 마커 감소가 관찰되었습니다. 회사는 2026년에 다중용량 환자 데이터를 발표하고 ARV-102 개발을 추진할 계획입니다.

Arvinas, Inc. a présenté des données cliniques de phase 1 de dernière minute pour l ARV-102, un dégradateur PROTAC de LRRK2, démontrant une pénétration cérébrale et une forte réduction de la cible lors des essais préliminaires. Chez les volontaires sains, des doses uniques allant jusqu'à 200 mg et des doses quotidiennes multiples jusqu'à 80 mg ont été généralement bien tolérées sans interruptions pour effets indésirables. Des doses quotidiennes répétées ≥20 mg ont produit des réductions de > 90% de la protéine LRRK2 dans les leucocytes et > 50% dans le liquide céphalo-rachidien (LCR); les biomarqueurs de voie (phospho-Rab10T73 et BMP urinaire) ont également diminué.

Dans une petite cohorte de Parkinson (15 traités, 4 placebo), des doses uniques de 50 mg et 200 mg ont été bien tolérées avec seulement des effets indésirables associés au traitement légers. Les réductions médianes de LRRK2 dans les PBMC étaient 86% à 50 mg et 97% à 200 mg. La protéomique du LCR après 14 jours de posologie quotidienne de 80 mg a montré une diminution des marqueurs lysosomaux et neuroinflammatoires. L’entreprise prévoit de présenter des données sur les patients à doses multiples en 2026 et compte faire progresser le développement d’ARV-102.

Arvinas, Inc. präsentierte aktuelle Phasen-1-Daten zu ARV-102, einem PROTAC-LLRK2-Degrader, die Hirnpenetration und eine starke Zielreduzierung in frühen Studien zeigten. Bei gesunden Freiwilligen dauerten Einzeldosen bis zu 200 mg und mehrfache tägliche Dosen bis zu 80 mg in der Regel gut verträglich, ohne Abbruch aufgrund von Nebenwirkungen. Wiederholte tägliche Dosen ≥20 mg führten zu > 90% Reduktionen des LRRK2-Proteins in Blutkörperchen und > 50% Reduktionen im zerebrospinalflüssigen Liquor (CSF); Weg-Biomarker (phospho-Rab10T73 und Urin BMP) wurden ebenfalls reduziert.

In einer kleinen Parkinson-Kohorte (15 behandelt, 4 Placebo) waren Einzeldosen von 50 mg und 200 mg gut verträglich mit nur milden behandlungsbedingten unerwünschten Nebenwirkungen. Die medianen LRRK2-Reduktionen in PBMC betrugen 86% bei 50 mg und 97% bei 200 mg. Die CSF-Proteomik nach 14 Tagen täglicher 80-mg-Dosierung zeigte verringerte lysosomale und neuroinflammatorische Marker. Das Unternehmen plant, 2026 Daten zu Mehrfachdosen von Patienten zu präsentieren und beabsichtigt, die Entwicklung von ARV-102 voranzutreiben.

0001655759FALSE00016557592025-10-052025-10-05

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): October 5, 2025
__________________
Arvinas, Inc.
(Exact name of registrant as specified in its charter)
__________________
Delaware001-3867247-2566120
(State or other jurisdiction
of incorporation)
(Commission
File Number)
(IRS Employer
Identification No.)
5 Science Park
395 Winchester Ave.
New Haven, Connecticut
06511
(Address of principal executive offices)(Zip Code)
Registrant’s telephone number, including area code: (203) 535-1456
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):
oWritten communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
oSoliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
oPre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
oPre-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, par value $0.001 per shareARVN
The Nasdaq Stock Market LLC
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 o
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. o



Item 7.01 Regulation FD Disclosure
On October 5, 2025, Arvinas, Inc. (the “Company”) announced the presentation of late breaking, positive Phase 1 clinical trial data for ARV-102, a PROteolysis TArgeting Chimera ("PROTAC") leucine-rich repeat kinase 2 ("LRRK2") degrader at at the 2025 International Congress of Parkinson’s Disease and Movement Disorders®.
The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated into this Item 7.01 by reference.
The information in 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 October 5, 2025, the Company announced the presentation of late breaking, positive Phase 1 clinical trial data for ARV-102, a PROTAC LRRK2 degrader at at the 2025 International Congress of Parkinson’s Disease and Movement Disorders®. The Company presented data from two clinical trials: ARV-102-101, a first-in-human trial of ARV-102 in healthy volunteers, and ARV-102-103, a trial in patients with Parkinson’s disease. Key findings from the clinical trials include:
Data from a Phase 1 Single Ascending Dose and Multiple Ascending Dose Clinical Trial in Healthy Volunteers

Safety: ARV-102 was generally well tolerated at single doses up to 200 mg and multiple daily doses up to 80 mg, with no discontinuations due to adverse events ("AEs") or serious adverse events ("SAEs") observed in the study population.

Pharmacokinetics: ARV-102 exposure increased in a dose-dependent manner in plasma and cerebrospinal fluid ("CSF"), the latter indicating brain penetration.

Pharmacodynamics: Repeated daily doses ≥20 mg resulted in >90% reductions of LRRK2 protein in peripheral blood mononuclear cells ("PBMCs") and >50% reductions in CSF.

Pathway Biomarkers: Repeated daily doses of ARV-102 resulted in reduced plasma concentrations of phospho-Rab10T73 and urine concentrations of bis(monoacylglycerol)phosphate ("BMP"), a sensitive biomarker for modulation of the lysosomal pathway downstream of LRRK2.

Interim Single Ascending Dose Data from a Phase 1 Clinical Trial in Patients with Parkinson’s Disease and CSF Proteomic Data from a Phase 1 Trial in Healthy Volunteers

Safety: The Phase 1 clinical trial in patients with Parkinson’s included 15 patients treated with ARV-102 and 4 patients treated with placebo. In the trial, single doses of ARV-102 (50 mg or 200 mg) were well tolerated with only mild treatment-related AEs including headache, diarrhea, and nausea; no SAEs occurred.

Pharmacokinetics: In patients with Parkinson’s disease, ARV-102 exposure increased in a dose-dependent manner in both plasma and CSF, the latter indicating brain penetration.

Pharmacodynamics: In patients with Parkinson’s disease, treatment with ARV-102 resulted in median PBMC LRRK2 protein reductions of 86% with the 50 mg dose and 97% with the 200 mg dose.

CSF Proteomics: In healthy volunteers treated with ARV-102 80 mg once daily for 14 days, unbiased proteomic analyses of CSF showed significant decreases in lysosomal pathway markers and neuroinflammatory microglial markers previously shown to be elevated in patients with Parkinson's disease harboring LRRK2 variants.

The Company believes these data highlight the potential PROTAC-mediated LRRK2 degradation, which supports the intensified development of ARV-102 in ongoing studies of patients with Parkinson’s disease, and future studies of patients with progressive supranuclear palsy. The Company plans to present initial data from a multiple dose cohort of the Phase 1 clinical trial of ARV-102 in patients with Parkinson’s disease (ARV-102-103) in 2026. Pending data from the multiple



dose cohort and investigational new drug clearance, the Company intends to initiate a Phase 1b clinical trial of ARV-102 in patients with progressive supranuclear palsy in the first half of 2026.
Forward-Looking Statements
This Current Report on Form 8-K contains forward-looking statements that involve substantial risks and uncertainties, including statements regarding the Company's belief that these data highlight the potential PROTAC-mediated LRRK2 degradation, which supports the intensified development of ARV-102 in ongoing studies of patients with Parkinson’s disease, and future studies of patients with progressive supranuclear palsy; the Company's plans to present initial data from a multiple dose cohort of the Phase 1 clinical trial of trial in patients with Parkinson’s disease (ARV-102-103), and the timing thereof; and the Company's intention, pending data from the multiple dose cohort and investigational new drug clearance, to initiate a Phase 1b trial in patients with progressive supranuclear palsy, and the timing thereof. All statements, other than statements of historical facts, contained in this Current Report on Form 8-K, including statements regarding the Company’s strategy, future operations, prospects, plans and objectives of management, are forward-looking statements. The words "believe," "intends," "plans," "potential,” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. The Company may not actually achieve the plans, intentions or expectations disclosed in its forward-looking statements, and you should not place undue reliance on such forward-looking statements. Actual results or events could differ materially from the plans, intentions and expectations disclosed in the forward-looking statements the Company makes as a result of various risks and uncertainties, including the important factors discussed the important factors discussed in the “Risk Factors” sections contained in the Company’s quarterly and annual reports on file with the U.S. Securities and Exchange Commission. The forward-looking statements contained in this Current Report on Form 8-K reflect the Company’s current views with respect to future events, and the Company assumes no obligation to update any forward-looking statements except as required by applicable law. These forward-looking statements should not be relied upon as representing the Company’s views as of any date subsequent to the date of this Current Report on Form 8-K.
Item 9.01 Financial Statements and Exhibits.

Exhibit NumberDescription of Exhibit
99.1
Press Release, dated October 5, 2025
104
Cover Page Interactive Data File (formatted as Inline XBRL)



SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
ARVINAS, INC.
Date: October 6, 2025By:/s/ Andrew Saik
Andrew Saik
Chief Financial Officer

FAQ

What did ARV-102 Phase 1 trials show for ARVN?

ARV-102 showed brain penetration, was generally well tolerated up to 200 mg single dose and 80 mg multiple doses, and produced > 90% PBMC LRRK2 reductions at repeated doses.

How many Parkinson’s patients were dosed with ARV-102?

The interim Parkinson’s cohort included 15 treated patients and 4 placebo subjects with single doses of 50 mg and 200 mg.

Were there any serious adverse events reported?

No serious adverse events (SAEs) were observed; reported treatment-related adverse events were mild, including headache, diarrhea, and nausea.

What biomarkers changed with ARV-102 treatment?

Repeated dosing reduced PBMC LRRK2, decreased plasma phospho-Rab10T73, lowered urine BMP, and CSF proteomics showed declines in lysosomal and microglial markers after 14 days at 80 mg.

When will more patient data be available?

The company plans to present initial multiple‑dose patient cohort data from the Phase 1 study in 2026.
Arvinas

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