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

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AbbVie

Status and phase

Enrolling
Phase 1

Conditions

Advanced Solid Tumors

Treatments

Drug: Budigalimab
Drug: ABBV-706
Drug: Cisplatin
Drug: Carboplatin

Study type

Interventional

Funder types

Industry

Identifiers

NCT05599984
M23-385

Details and patient eligibility

About

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 350 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 3 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.

Enrollment

350 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

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: Participants with R/R SCLC following at least 1 prior platinum-containing chemotherapy or R/R poorly differentiated NECs, e.g., NEPC, GEP-NECs, LCNECs, SCLC transformed from EGFR mutant Non-small cell lung cancer (NSCLC), atypical lung carcinoids, other high-grade poorly differentiated NECs. * Part 3b only: Participants with R/R SCLC who have only progressed following a frontline regimen containing a platinum-based chemotherapy or R/R NECs, e.g., NEPC, GEP-NECs, LCNECs, SCLC transformed from EGFR mutant NSCLC, atypical lung carcinoids, other NECs. * Part 4a only: Participants with R/R 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) who have progressed on SoC therapy and with no curative therapy options available. * Part 4b only: Participants with R/R neuroendocrine tumors, including NEPC, GEP-NECs, LCNECs, SCLC transformed from EGFR mutant NSCLC, atypical lung carcinoids, and other high-grade poorly differentiated NECs, who have progressed on SoC therapy and with no curative therapy options available. * 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

* 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.

Trial design

Primary purpose

Treatment

Allocation

Non-Randomized

Interventional model

Sequential Assignment

Masking

None (Open label)

350 participants in 6 patient groups

Part 1: ABBV-706 Monotherapy Dose Escalation
Experimental group
Description:
Participants will receive escalating doses of ABBV-706 until doses for optimization are determined, as part of an approximately 1 year treatment period.
Treatment:
Drug: ABBV-706
Part 2: ABBV-706 Monotherapy Dose Optimization and Expansion
Experimental group
Description:
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 1 year treatment period..
Treatment:
Drug: ABBV-706
Part 3a: ABBV-706 + Budigalimab
Experimental group
Description:
Participants will receive ABBV-706 in combination with budigalimab, as part of an approximately 1 year treatment period.
Treatment:
Drug: ABBV-706
Drug: Budigalimab
Part 3b: ABBV-706 + Platinum Chemotherapy
Experimental group
Description:
Participants will receive ABBV-706 in combination with carboplatin or cisplatin, as part of an approximately 1 year treatment period.
Treatment:
Drug: Carboplatin
Drug: Cisplatin
Drug: ABBV-706
Part 4a: ABBV-706 Monotherapy Dose Expansion CNS Tumors
Experimental group
Description:
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 1 year treatment period.
Treatment:
Drug: ABBV-706
Part 4b: ABBV-706 Monotherapy Dose Expansion NECs
Experimental group
Description:
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 1 year treatment period.
Treatment:
Drug: ABBV-706

Trial contacts and locations

43

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Central trial contact

ABBVIE CALL CENTER

Data sourced from clinicaltrials.gov

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