CClinicalTrials.gg
Active, not recruitingNCT05599984Updated May 7, 2026

Study to Evaluate Adverse Events, Change in Disease Activity, and How ABBV-706 Moves Through the Body When Intravenously (IV) Infused Alone or in Combination With IV Infused Budigalimab, Cisplatin, or Carboplatin in Adult Participants With Advanced Solid Tumors

A Phase 1 interventional study of ABBV-706 and Cisplatin in Advanced Solid Tumors, sponsored by AbbVie. Active, not recruiting at 66 sites in 10 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-05-07.

Sponsored by AbbVie · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
288
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

Cancer is a condition where cells in a specific part of body grow and reproduce uncontrollably. The purpose of this study is to assess safety, tolerability, pharmacokinetics and preliminary efficacy of ABBV-706 as a monotherapy and in combination with budigalimab, carboplatin, or cisplatin.

ABBV-706 is an investigational drug being developed for the treatment of small cell lung cancer (SCLC), high-grade central nervous system (CNS) tumors and high-grade neuroendocrine carcinomas (NECs). There are multiple treatment arms in this study. Participants will either receive ABBV-706 as a single agent or in combination with budigalimab (another investigational drug), carboplatin or cisplatin at different doses. Approximately 319 adult participants will be enrolled in the study across sites worldwide.

In part 1 (dose escalation), ABBV-706 will be intravenously infused in escalating doses as a monotherapy until the maximum tolerated dose (MTD) is determined in participants with SCLC, high-grade CNS tumors, and high-grade NECs. In part 2, multiple doses will be selected from Part 1 and SCLC participants will be assigned to one of these doses in a randomized fashion to determine the recommended Phase 2 dose. In Part 3a, participants with SCLC or NECs will receive ABBV-706 in combination with budigalimab intravenously every 3 weeks. In Part 3b participants with SCLC or NECs will receive ABBV-706 in combination with either carboplatin or cisplatin intravenously. In Part 4a, participants with CNS tumors will receive ABBV-706 intravenously at a dose determined from Part 1. In Part 4b, participants with NECs will receive ABBV-706 intravenously at a dose selected from Part 1. The estimated duration of the study is up to 4 years.

There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic and may require frequent medical assessments, blood tests, and scans.

02

Conditions studied

  • Advanced Solid Tumors

Keywords

  • Advanced Solid Tumors
  • Small Cell Lung Cancer
  • Central Nervous System Tumors
  • ABBV-706
  • ABBV-181
  • Budigalimab
  • Platinum Chemotherapy Combination
  • Carboplatin
  • Cisplatin
  • Neuroendocrine Carcinomas
  • Cancer
03

In context

Small Cell Lung Carcinoma

1,203 studies on the registry are indexed under Small Cell Lung Carcinoma; 342 are open to participants now.

This study's enrollment of 288 is above the median of 56 across 1,031 interventional studies indexed under Small Cell Lung Carcinoma.

Browse Small Cell Lung Carcinoma studies →

Lead sponsor

AbbVie is the lead sponsor of 953 studies on the registry; 136 are open to participants now.

Of its 350 completed or terminated interventional studies of FDA-regulated products, 210 (60%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
  • The laboratory values criteria must be met within 7 days prior to the first dose of study drug as per the protocol.
  • QT interval corrected for heart rate (QTc) \<= 450 msec (males) or \<= 470 msec (females) using Fridericia's correction, and an ejection fraction of >= 50% as measured by echocardiogram or multigated acquisition (MUGA) scan at Screening.
  • Part 1 only: Advanced recurrent or refractory solid tumors with potential SEZ6 expression including small cell lung cancer (SCLC), high-grade central nervous system (CNS) tumors (glioblastoma [GBM], IDH-wildtype Grade 4; oligodendroglioma, IDH-mutant, and 1p/19q-codeleted Grade 3; astrocytoma, IDH-mutant Grade 3 or Grade 4), neuroendocrine prostate cancer (NEPC), high-grade poorly differentiated gastroenteropancreatic neuroendocrine carcinoma (GEP-NEC)s, large cell neuroendocrine carcinoma (LCNEC)s, SCLC transformed from epidermal growth factor receptor (EGFR) mutant non-small cell lung cancer (NSCLC), atypical lung carcinoids, and other high-grade poorly differentiated NECs, who have progressed on or after standard of care (SoC) therapy and with no curative therapy available. For SCLC, participants must have histologically or cytologically confirmed SCLC that is relapsed or refractory following at least 1 prior platinum-containing chemotherapy.
  • Part 2 only: Histologically or cytologically confirmed SCLC that is relapsed or refractory (R/R) following at least 1 prior platinum-containing chemotherapy and with no curative therapy available. For the purposes of this study, a line of therapy is defined as >= 1 complete cycle of either a single agent or combination of drugs, including any planned sequential therapy of various regimens.
  • Part 3a only: SCLC or Grade 3 NETs and poorly differentiated NECs. Specific tumor types include but not limited to NEPC, GEP-NECs, LCNECs, SCLC transformed from EGFR mutant NSCLC, MTC, and other NECs (atypical lung carcinoids that have received prior chemotherapy are allowed)
  • Part 3b only: SCLC who have only progressed following a frontline regimen containing a platinum-based chemotherapy (i.e., second-line SCLC subjects) or Grade 3 NETs and poorly differentiated NECs. Specific tumor types include but not limited to NEPC, GEP-NECs, LCNECs, SCLC transformed from EGFR mutant NSCLC, MTC, and other NECs (atypical lung carcinoids that have received prior chemotherapy are allowed)tumors (GBM, IDH-wildtype Grade 4; oligodendroglioma, IDH-mutant, and 1p/19q-codeleted Grade 3; astrocytoma, IDH-mutant Grade 3 or Grade 4) who have progressed on SoC therapy and with no curative therapy options available.
  • Part 4b only: Grade 3 NETs and poorly differentiated NECs. Specific tumor types include but not limited to NEPC, GEP-NECs, LCNECs, SCLC transformed from EGFR mutant NSCLC, MTC, and other NECs (atypical lung carcinoids that have received prior chemotherapy are allowed)
  • Measurable disease per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 for participants with extracranial solid tumors or Response Assessment for Neuro-Oncology (RANO)for participants with primary high-grade CNS tumors (GBM, IDH-wildtype Grade 4; oligodendroglioma, IDH-mutant, and 1p/19q-codeleted Grade 3; astrocytoma, IDH-mutant Grade 3 or Grade 4).
  • Primary CNS tumors within 12 weeks from radiation therapy should have unequivocal progression as documented by either tumor recurrence predominantly outside of radiation field on magnetic resonance imaging (MRI) or confirmed on tumor biopsy.
  • Participants with brain metastases from an extracranial solid tumor are eligible if the brain metastases as outlined in the protocol.
  • Fresh or archival tumor tissue available for submission, for retrospective SEZ6 expression analysis as outlined in the protocol.

Exclusion criteria

Exclusion Criteria:

  • History of interstitial lung disease (ILD) or pneumonitis that required treatment with systemic steroids, nor any evidence of active ILD or pneumonitis.
  • History of idiopathic pulmonary fibrosis or organizing pneumonia.
  • Prior treatment with an antibody drug conjugate that consists of a Top1 inhibitor payload.
  • Part 2 only: Prior treatment with a SEZ6-targeted antibody drug conjugate.
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
288 participants (actual)

Study arms

  • Experimental
    Part 1: ABBV-706 Monotherapy Dose Escalation

    Participants will receive escalating doses of ABBV-706 until doses for optimization are determined, as part of an approximately 2 year treatment period.

    Drug: ABBV-706

  • Experimental
    Part 2: ABBV-706 Monotherapy Dose Optimization and Expansion

    Participants with small cell lung cancer will receive varying doses of ABBV-706 in a randomized manner until the recommended phase 2 dose (RP2D) is achieved, as part of an approximately 2 year treatment period..

    Drug: ABBV-706

  • Experimental
    Part 3a: ABBV-706 + Budigalimab

    Participants will receive ABBV-706 in combination with budigalimab, as part of an approximately 2 year treatment period.

    Drug: ABBV-706 · Drug: Budigalimab

  • Experimental
    Part 3b: ABBV-706 + Platinum Chemotherapy

    Participants will receive ABBV-706 in combination with carboplatin or cisplatin, as part of an approximately 2 year treatment period.

    Drug: ABBV-706 · Drug: Cisplatin · Drug: Carboplatin

  • Experimental
    Part 4a: ABBV-706 Monotherapy Dose Expansion CNS Tumors

    Participants with relapsed/refractory (R/R) central nervous system (CNS) tumors will receive ABBV-706 as a monotherapy at or below the maximum tolerated dose (MTD) maximum administered dose (MAD), as part of an approximately 2 year treatment period.

    Drug: ABBV-706

  • Experimental
    Part 4b: ABBV-706 Monotherapy Dose Expansion NECs

    Participants with R/R neuroendocrine carcinomas (NECs) will receive IV Infused ABBV-706 as a monotherapy at or below the MTD/MAD, as part of an approximately 2 year treatment period.

    Drug: ABBV-706

Interventions

  • DrugABBV-706

    Intravenous (IV) Infusion

  • DrugCisplatin

    Intravenous infusion

  • DrugBudigalimab

    IV Infusion

    Also known as: ABBV-181

  • DrugCarboplatin

    Intravenous infusion

06

What researchers measure

Primary outcomes

  1. Percentage of Participants With Adverse Events (AE)

    An AE is any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and which does not necessarily have a causal relationship with this treatment.

    Time frame: Up to Approximately 2 Years

  2. Maximum Observed Serum/Plasma Concentration (Cmax) of ABBV-706

    Maximum observed serum/plasma concentration of ABBV-706.

    Time frame: Up to Approximately 2 Years

  3. Time to Cmax (Tmax) of ABBV-706

    Time to Cmax of ABBV-706.

    Time frame: Up to Approximately 2 Years

  4. Terminal Phase Elimination Half-Life (t1/2) of ABBV-706

    Terminal phase elimination half-life (t1/2) of ABBV-706.

    Time frame: Up to Approximately 2 Years

  5. Area Under the Serum/Plasma Concentration-Time Curve (AUC) of ABBV-706

    Area under the serum/plasma concentration-time curve of ABBV-706.

    Time frame: Up to Approximately 2 Years

  6. Antidrug Antibodies (ADAs)

    Incidence and concentration of anti-drug antibodies.

    Time frame: Up to Approximately 2 Years

  7. Neutralizing Antibodies (nAbs)

    Incidence and concentration of neutralizing antibodies.

    Time frame: Up to Approximately 2 Years

  8. Percentage of Participants with Objective Response, for Participants with Extracranial Solid Tumors

    Objective response is defined as participants achieving a confirmed best overall response of complete response (CR) or partial response (PR) according to Response Evaluation Criteria in Solid Tumors (RECIST), version 1.1 for for extracranial solid tumors per investigator assessment.

    Time frame: Up to Approximately 2 Years

  9. Recommended Phase 2 Dose (RP2D) of ABBV-706

    The RP2D will be determined using all available information, including, but not limited to, AEs, dose-limiting toxicities, pharmacokinetic parameters, clinical laboratory tests, and efficacy measures.

    Time frame: Up to Approximately 2 Years

  10. Percentage of Participants with Objective Response for Participants with Central Nervous System (CNS) Tumors

    Objective response is as participants achieving a confirmed best overall response of CR and PR according to Response Assessment for Neuro-Oncology (RANO), version 1.1 for CNS tumors per investigator assessment.

    Time frame: Up to Approximately 2 Years

  11. Duration of response (DOR) for Participants with Confirmed CR/PR

    For participants achieving a confirmed CR/PR, DOR is defined as the time from the initial response of CR/PR to disease progression or death of any cause, whichever occurs earlier.

    Time frame: Up to Approximately 2 Years

  12. Percentage of Participants with Clinical Benefit

    Clinical benefit is defined as a participant achieving CR/PR, or Stable Disease (SD).

    Time frame: Up to Approximately 2 Years

  13. Progression-Free Survival (PFS)

    PFS is defined as time from first study treatment to a documented disease progression, as determined by the investigator, or death due to any cause, whichever occurs earlier.

    Time frame: Up to Approximately 2 Years

  14. Overall survival (OS)

    OS is defined as time from first study treatment to death due to any cause.

    Time frame: Up to Approximately 2 Years

07

Study locations

66 sites
  • Banner MD Anderson Cancer Ctr /ID# 260129
    Gilbert, Arizona 85234, United States
  • City Of Hope Comprehensive Cancer Center /ID# 271295
    Duarte, California 91030, United States
  • City of Hope - Orange County Lennar Foundation Cancer Center /ID# 259884
    Irvine, California 92618, United States
  • Yale New Haven Hospital /ID# 246647
    New Haven, Connecticut 06510, United States
  • Georgetown University Hospital /ID# 255352
    Washington D.C., District of Columbia 20007, United States
  • University of Chicago Medical Center /ID# 256334
    Chicago, Illinois 60637, United States
  • Fort Wayne Medical Oncology and Hematology, Inc /ID# 260130
    Fort Wayne, Indiana 46804, United States
  • University of Iowa Hospitals and Clinics /ID# 246638
    Iowa City, Iowa 52242, United States
  • Barbara Ann Karmanos Cancer In /ID# 261799
    Detroit, Michigan 48201, United States
  • Henry Ford Hospital /ID# 246648
    Detroit, Michigan 48202, United States
  • START Midwest /ID# 251257
    Grand Rapids, Michigan 49546-7062, United States
  • St. Lukes Hosp. of Kansas City /ID# 259958
    Kansas City, Missouri 64111, United States
  • Washington University-School of Medicine /ID# 246286
    St Louis, Missouri 63110, United States
  • Memorial Sloan Kettering Cancer Center-Koch Center /ID# 246303
    New York, New York 10065-6007, United States
  • Duke Cancer Center /ID# 246285
    Durham, North Carolina 27710, United States
  • UH Cleveland Medical Center /ID# 246641
    Cleveland, Ohio 44106, United States
  • Univ Oklahoma HSC /ID# 250884
    Oklahoma City, Oklahoma 73117, United States
  • Tennessee Oncology, PLLC /ID# 246283
    Nashville, Tennessee 37203, United States
  • University of Texas MD Anderson Cancer Center /ID# 246287
    Houston, Texas 77030, United States
  • South Texas Accelerated Research Therapeutics /ID# 248946
    San Antonio, Texas 78229, United States
  • University of Utah /ID# 246640
    Salt Lake City, Utah 84112-5500, United States
  • Northwest Medical Specialties - Tacoma /ID# 262801
    Tacoma, Washington 98405, United States
  • Chris O'Brien Lifehouse /ID# 259087
    Camperdown, New South Wales 2050, Australia
  • The Kinghorn Cancer Centre /ID# 260874
    Darlinghurst, New South Wales 2010, Australia
  • Austin Health and Ludwig Institute for Cancer Research /ID# 255174
    Heidelberg, Victoria 3084, Australia
  • Peter MacCallum Cancer Ctr /ID# 259197
    Melbourne, Victoria 3000, Australia
  • Cancer Hospital - Chinese Academy Of Medical Sciences /ID# 270044
    Beijing, Beijing Municipality 100021, China
  • Union Hospital Tongji Medical College Huazhong University of Science and Technol /ID# 270038
    Wuhan, Hubei 430022, China
  • First Affiliated Hospital of China Medical University /ID# 270041
    Shenyang, Liaoning 110001, China
  • Shanghai Chest Hospital /ID# 270036
    Shanghai, Shanghai Municipality 200030, China
  • Shanghai East Hospital /ID# 268615
    Shanghai, Shanghai Municipality 200120, China
  • Shanghai Pulmonary Hospital /Id# 270039
    Shanghai, Shanghai Municipality 200433, China
  • Institut Bergonie /ID# 258655
    Bordeaux, Gironde 33000, France
  • Institut Gustave Roussy /ID# 260334
    Villejuif, Val-de-Marne 94805, France
  • Institut Régional du Cancer Montpellier /ID# 265086
    Montpellier, 34298, France
  • Klinikum der Universitaet Muenchen - Campus Innenstadt /ID# 259412
    Munich, Bavaria 80336, Germany
  • Universitaetsklinikum Carl Gustav Carus Dresden /ID# 259414
    Dresden, Saxony 01307, Germany
  • Charite Universitaetsmedizin Berlin - Campus Benjamin Franklin /ID# 259413
    Berlin, 12203, Germany
  • The Chaim Sheba Medical Center /ID# 254915
    Ramat Gan, Tel Aviv 5265601, Israel
  • Rambam Health Care Campus /ID# 255059
    Haifa, 3109601, Israel
  • Hadassah Medical Center-Hebrew University /ID# 255147
    Jerusalem, 91120, Israel
  • Istituto Europeo Di Oncologia /ID# 256804
    Milan, Milano 20141, Italy
  • Fondazione IRCCS San Gerardo dei Tintori - Ospedale San Gerardo /ID# 258228
    Monza, Monza E Brianza 20052, Italy
  • National Cancer Center Hospital East /ID# 259417
    Kashiwa-shi, Chiba 277-8577, Japan
  • National Hospital Organization Shikoku Cancer Center /ID# 261279
    Matsuyama, Ehime 791-0280, Japan
  • Hokkaido Cancer Center /ID# 261278
    Sapporo, Hokkaido 003-0804, Japan
  • Kyoto University Hospital /ID# 259419
    Kyoto, Kyoto 606-8507, Japan
  • Shizuoka Cancer Center /ID# 261277
    Sunto-gun, Shizuoka 411-8777, Japan
  • National Cancer Center Hospital /ID# 259418
    Chuo-ku, Tokyo 104-0045, Japan
  • The Cancer Institute Hospital Of JFCR /ID# 260132
    Koto-ku, Tokyo 135-8550, Japan
  • Wakayama Medical University Hospital /ID# 260131
    Wakayama, Wakayama 641-8510, Japan
  • National Cancer Center /ID# 248938
    Goyang-si, Gyeonggido 10408, South Korea
  • CHA Bundang Medical Center /ID# 248939
    Seongnam, Gyeonggido 13496, South Korea
  • Chonnam National University Hwasun Hospital /ID# 248943
    Hwasun-gun, Jeonranamdo 58128, South Korea
  • Seoul National University Hospital /ID# 248940
    Seoul, Seoul Teugbyeolsi 03080, South Korea
  • Samsung Medical Center /ID# 248936
    Seoul, Seoul Teugbyeolsi 06351, South Korea
  • Yonsei University Health System Severance Hospital /ID# 248937
    Seoul, 03722, South Korea
  • Hospital HM Nou Delfos /ID# 264851
    Barcelona, 08023, Spain
  • Hospital Universitario Vall de Hebron /ID# 258659
    Barcelona, 08035, Spain
  • Hospital Santa Creu i Sant Pau /ID# 257294
    Barcelona, 08041, Spain
  • Hospital Universitario Ramon y Cajal /ID# 257291
    Madrid, 28034, Spain
  • Hospital Universitario Fundacion Jimenez Diaz /ID# 257295
    Madrid, 28040, Spain
  • Hospital Universitario 12 de Octubre /ID# 258658
    Madrid, 28041, Spain
  • Hospital Universitario HM Sanchinarro /ID# 258657
    Madrid, 28050, Spain
  • Hospital Universitario Virgen del Rocio /ID# 256940
    Seville, 41013, Spain
  • Hospital Clinico Universitario de Valencia /ID# 257290
    Valencia, 46010, Spain
08

References and documents

Publications

  • Byers LA, Cho BC, Cooper AJ, Chiang AC, Han JY, Furqan M, Dowlati A, Morgensztern D, Papadopoulos KP, Choudhury NJ, Vieito M, Bar J, Kim JH, Akerley W, Kim TM, Kim YC, Paz-Ares L, Ahn MJ, Yokouchi H, Meiman D, Munasinghe W, Ogunyankin O, Jahchan N, Wang S, Ferlini C, Robinson RR, Kohlhapp FJ, Palenski T, Rivell G, Hingorani P, Chandana S. SEZ6-targeting antibody-drug conjugate ABBV-706 in advanced small cell lung cancer and solid tumors: a phase 1 trial. Nat Med. 2026 Jun 1. doi: 10.1038/s41591-026-04452-0. Online ahead of print. PubMed 42225988 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 7, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05599984
Lead sponsor
AbbVie
Responsible party
Sponsor
First posted
Oct 31, 2022
Start date
Dec 5, 2022
Primary completion
Nov 2027 (estimated)
Completion
Nov 2027 (estimated)
Last update
May 7, 2026

Study contacts

ABBVIE INC.
study director · AbbVie

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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