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Ovarian CancerPhase 1NCT04396340

First-in-Human Study of XMT-1592 in Patients With Ovarian Cancer and NSCLC Likely to Express NaPi2b

A Phase 1 study testing XMT-1592 in people with Ovarian Cancer and Nonsmall Cell Lung Cancer, run by Mersana Therapeutics at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Phase 1b, a study in high grade serous ovarian cancer and nonsmall cell lung cancer to evaluate the safety and clinical activity of the antibody-drug conjugate (ADC) XMT-1592. Read more about this study

Who is it for?
Ages 18 to 95 years
Conditions the study is for
Ovarian Cancer, Nonsmall Cell Lung Cancer
What is being tested?
XMT-1592
Could I receive a placebo?
No, everyone receives an active treatment
How many people
31 participants
Where
1 siteUnited States
Study dates
11 May 2020to 30 Sep 2022
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 95 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Ability to give informed consent.
  • ECOG performance status 0 or 1.
  • Measurable disease as per RECIST, version 1.1. Resolution of all acute toxic effects of prior therapy or surgical procedures to Grade ≤1 (except alopecia).
  • Adequate organ function.
  • Confirmed availability of tumor tissue blocks or freshly cut tissue slides for NaPi2b testing. -In EXP, ability to undergo a fresh biopsy before enrollment, unless not medically feasible.
  • For women of childbearing potential and men with partners of childbearing potential, agreement to use a highly effective form of hormonal contraception or two effective forms of non-hormonal contraception by the patient and/or partner, and to continue the use of contraception for the duration of study treatment and for at least 6 months after the last dose of study treatment.
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  • Histologically or cytologically confirmed solid tumors of the types specified below, with incurable, locally advanced or metastatic disease that has failed standard therapy or for which no standard treatment option exists.
  • Ovarian Cancer: Histological diagnosis of epithelial ovarian, fallopian tube, or primary peritoneal cancer, excluding the mucinous subtype.
  • NSCLC: Histological diagnosis of nonsquamous NSCLC.

Who cannot join

  • Major surgery within 28 days of starting study treatment; -or- systemic anti-cancer therapy within the lesser of 28 days or 5 half-lives of the prior therapy before starting study treatment -or- recent radiation therapy with unresolved toxicity.
  • Brain metastases that are: untreated, progressive, have required any type of major treatment, e.g., whole-brain radiation treatment, adjuvant chemotherapy, gamma knife, to control symptoms from brain metastases within 30 days of the first study treatment. Or any history of leptomeningeal metastasis.
  • Current known active infection with HIV, hepatitis B virus, or hepatitis C virus.
  • No prior history of liver disease such as liver cirrhosis, hepatic fibrosis
  • Current severe, uncontrolled systemic disease (e.g., clinically significant cardiovascular, pulmonary, or metabolic disease) or intercurrent illness that could interfere with per-protocol evaluations.
  • Severe dyspnea at rest due to complications of advanced malignancy, or requiring supplementary oxygen therapy.
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  • Currently active pneumonitis or interstitial lung disease.
  • Pregnant or nursing women.
  • History of other malignancy within the last 5 years, except for appropriately treated carcinoma in situ of the cervix, non-melanoma skin carcinoma, or other malignancy with a similar expected curative outcome.
  • Participation in the DES component of the study.
  • Prior use of mirvetuximab soravtansine or another ADC containing an auristatin or maytansinoid payload.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Mary Crowley Cancer Research Center

    Dallas, Texas, 75201

Other trials in United States

About this study

Official title: A Phase 1b, First-in-Human, Dose Escalation and Expansion Study of XMT-1592 In Patients With Solid Tumors Likely to Express NaPi2b

Phase 1b, a study in high grade serous ovarian cancer and nonsmall cell lung cancer to evaluate the safety and clinical activity of the antibody-drug conjugate (ADC) XMT-1592.

Read the detailed description

This Phase 1b trial is an open-label, multi-center study of XMT-1592 administered as an intravenous infusion once every 3 weeks. The dose-escalation (DES) segment of the study will establish the expansion (EXP) dose and is intended to establish the maximum tolerated dose (MTD) or recommended Phase 2 dose (RP2D) for XMT-1592 in patients with high grade serous ovarian cancer (HGSOC) or non-small cell lung cancer (NSCLC), adenocarcinoma subtype. The EXP segment of the study will consist of 2 parallel cohorts of patients (HGSOC and NSCLC) to confirm the MTD or RP2D and estimate the objective response rate in each selected patient population. In DES, the observation period for dose-limiting toxicities is 21 days, between Day 1 through the end of Cycle 1 which includes the pre-dose assessments before receiving the Cycle 2 dose. All adverse events (AEs) will be graded according to NCI, CTCAE v5.0). In general, AEs ≥Grade 3 are dose-limiting toxicities with some modifications.

Being tested
XMT-1592
Medical subject headings
Ovarian Neoplasms, Carcinoma, Non-Small-Cell Lung

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • XMT-1592Biological

    XMT-1592 will be administered once every 21 or 28 days until disease progression, unacceptable toxicity, or either the patient or study physician determines it is in the best interest of the patient to discontinue participation in the study.

Study groups in NCT04396340
Study groupRoleWhat they receive
Dose EscalationExperimentalXMT-1592 is administered in groups of patients who will receive doses that increase over time until the maximum tolerated dose is achieved.
Receives: Biological: XMT-1592
Confirmation of DoseExperimentalNew groups of patients will receive XMT-1592 at the maximum tolerated dose to confirm the recommended Phase 2 dose
Receives: Biological: XMT-1592

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Maximum tolerated dose or recommended Phase 2 dose

    Evaluate adverse events and use of concomitant medication use after XMT-1592 doses

    Measured: Up to 36 weeks, from the date of first dose until unacceptable side effects or a dose-limiting toxicity is me

Secondary outcomes (5)
  1. Time of maximum observed concentration of XMT-1592

    Determine the pharmacokinetics of XMT-1592

    Measured: Daily for one week after first dose; weekly until 21 days after first dose; immediately before and after and 1 week after all subsequent doses

  2. Maximum concentration of XMT-1592

    Determine the pharmacokinetics of XMT-1592

    Measured: Daily for one week after first dose; weekly until 21 days after first dose; immediately before and after and 1 week after all subsequent doses

  3. Area under the concentration curve of the last measurable concentration of XMT-1592

    Determine the pharmacokinetics of XMT-1592

    Measured: Daily for one week after first dose; weekly until 21 days after first dose; immediately before and after and 1 week after all subsequent doses

  4. Antineoplastic effects of XMT-1592

    Monitor tumor size

    Measured: Every 6 weeks for up to 36 weeks

  5. Anti-drug antibody and neutralizing antibody

    Analyze blood for antibodies to XMT-1536 and neutralizing antibodies

    Measured: Every 3 weeks for 9 weeks then every 6 weeks for upto 36 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 May 2020
  2. Study start11 May 2020
  3. Primary completion30 Sep 2022
  4. Study completion30 Sep 2022

Why it stopped: discontinued development program

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Model description
Open-label, dose escalation to reach MTD. The MTD will be confirmed in 2 parallel cohorts: (1) patients with platinum-resistant ovarian cancer; (2) patients with non-squamous NSCLC, adenocarcinoma subtype.
Masking
None (open label)
Enrolment
31 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04396340
Sponsor's protocol ID
XMT-1592-1
Status last verified
Mar 2024
First submitted
15 May 2020
Last updated
15 Mar 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing XMT-1592 in people with Ovarian Cancer and Nonsmall Cell Lung Cancer, run by Mersana Therapeutics at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 15 Mar 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: discontinued development program). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Maximum tolerated dose or recommended Phase 2 dose (time frame: Up to 36 weeks, from the date of first dose until unacceptable side effects or a dose-limiting toxicity is me). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Mar 2024.

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