ClinicalTrials.gg
Active, not recruitingNCT04969887MOST-CIRCUITUpdated Feb 27, 2026

Combination Immunotherapy in Rare Cancers Under InvesTigation

A Phase 2 interventional study of Ipilimumab and Nivolumab in Advanced Biliary Tract Cancer, Neuroendocrine Tumors and Female Reproductive System Neoplasm, sponsored by Olivia Newton-John Cancer Research Institute. Active, not recruiting at 18 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-02-27.

Sponsored by Olivia Newton-John Cancer Research Institute · Phase 2, Interventional, and Treatment

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Phase
Phase 2
Study type
Interventional
Enrollment
240
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 22 studies in Neuroendocrine Tumors with a site in Australia — 7 open to participants now, 13 under way, 3 of them phase 3. Neuroendocrine Tumors · Australia.

Enrollment
6th of 18
240 · median 121
Started
2021
with 4 others
Phase 2
8 of 22
1 open now
Primary completion
2025-03
later than 1 of 12 live
Registered
15th of 22
by date
Lead sponsor
2 of 22
Olivia Newton-John Cancer Research Institute

Among the 22 studies in Neuroendocrine Tumors with a site in Australia, this one is the 6th largest by enrollment of the 18 interventional ones that give a count, is one of 5 that started in 2021, is one of 8 in phase 2, reaches primary completion later than 1 of the 12 other live ones, and was the 15th registered.

Neuroendocrine Tumors

542 studies on the registry are indexed under Neuroendocrine Tumors; 135 are open to participants now.

Browse Neuroendocrine Tumors studies →

Open to participants now

7 of the 22 studies in Neuroendocrine Tumors with a site in Australia are open now. Recruiting first, the newest first:

2 more — sign in →

All 7 open studies →

A study can be open while its sites in Australia have not opened yet or have stopped. Only those recruiting at a site in Australia →

Who these studies take

Of the 112 Neuroendocrine Tumors studies recruiting now, 73 (65%) set no upper age limit and 17 (15%) stop at 75 or younger; 12 take children under 18; 4 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 22 studies in Neuroendocrine Tumors with a site in Australia, or all of them as a file.
02

Study summary

The four tumour streams that will be studied in this protocol are based on immunotherapy sensitive rare cancers from CA209-538 which will be further investigated under this protocol and divided into four groups:

  1. Neuroendocrine cancers: Atypical bronchial carcinoid, neuroendocrine carcinoma and Grade 3 NETs independent of primary site (SCLC excluded)
  2. Biliary tract cancers: Intrahepatic cholangiocarcinoma and gallbladder carcinoma
  3. Gynaecological malignancies: Ovarian clear cell carcinoma, uterine clear cell carcinoma, uterine/ovarian carcinosarcoma, uterine leiomyosarcoma and vaginal/vulva squamous cell carcinoma
  4. Mismatch repair protein deficient (MSI-H) cancers (excluding colorectal carcinoma).

The role of immunotherapy is being defined in more common cancer types, however because of their rarity, the efficacy of immunotherapy for these cancers is poorly defined.

This protocol provides an important opportunity to establish whether the combination of nivolumab \& ipilimumab has efficacy in these cancers.

Read the detailed description

This is a phase 2 clinical trial of nivolumab combined with ipilimumab in immunotherapy sensitive rare cancers. This study will allow an evaluation of the clinical benefit, as measured by progression free survival (PFS) >6 months and overall survival (OS), provided by nivolumab combined with ipilimumab.

Study Rationale Clinically advanced rare cancers pose a significant clinical challenge because evidence based treatments are seldom available for patients suffering from these malignancies. Despite little evidence that shows clinical benefit, these patients are often treated with chemotherapeutic agents that are used in patients with more common malignancies that arise from the same anatomical site. Furthermore, because of small numbers, patients are often excluded from clinical trials with newer agents. CA209-538 examined this treatment combination in three 'baskets' of rare cancers: rare upper gastrointestinal, gynaecological and neuroendocrine cancers. The cancers on study all individually had an incidence of \<2/100000/year. The cancer specific survival of patients diagnosed with a rare malignancy is significantly lower than with common cancers highlighting the need to improve management and treatment of rare cancer patients. Given the success of cancer immunotherapy with checkpoint regulators such as ipilimumab and nivolumab in a range of different cancer types, it was postulated that these agents could be beneficial in rare cancers and improve the overall outlook of patients with these conditions. CA209-538 enrolled 120 rare cancer patients on study, clinical benefit rate was >30% across all baskets, long term survival follow-up is underway.

This study will enrol 240 participants, across 4 cohorts with histotypes which demonstrated clinical benefit on CA209-538. All participants will receive ipilimumab and nivolumab as combination immunotherapy.

03

Conditions studied

  • Advanced Biliary Tract Cancer
  • Neuroendocrine Tumors
  • Female Reproductive System Neoplasm
  • MSI-H Solid Malignant Tumor
04

Who can participate

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

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Signed Written

    • Subjects must be willing and able to comply with scheduled visits, treatment schedule, laboratory testing, and other requirements of the study
  2. Target Population

    • a) confirmed Neuroendocrine cancers: Atypical bronchial carcinoid, neuroendocrine carcinoma and Grade 3 NETs independent of primary site (SCLC excluded); Biliary Tract Cancers: Intrahepatic cholangiocarcinoma, gallbladder carcinoma; Gynaecological : Ovarian clear cell carcinoma, uterine clear cell carcinoma, uterine/ovarian carcinosarcoma, uterine leiomyosarcoma, vaginal/vulva squamous cell carcinoma; Mismatch repair protein deficient (MSI-H) cancers (excluding colorectal carcinoma)
    • (ECOG) performance status of ≤1
    • Prior systemic therapy (≤1) for advanced disease is permitted if it was completed at least 4 weeks prior to enrolment, and all related adverse events have either returned to baseline or stabilized or participants are not suitable for, or if declining established standard therapies. For MSI-H rare cancers and atypical bronchial carcinoid only, patients will be eligible independent of the number of received as long as treatment has been completed at least 4 weeks prior to enrolment.
    • Prior radiotherapy must have been completed at least 2 weeks prior to study drug administration.
    • by CT or MRI per 1.1 criteria
    • Tumour tissue from an unresectable or site of disease must be available for biomarker analyses.
    • Screening laboratory values must meet the following criteria and should be obtained within 14 days prior to randomization:

      • WBC (white blood cells) > or = to 2000/μL
      • Neutrophils > or = to 1500/μL
      • > or = to 100 x103/μL
      • > 9.0 g/dL
      • Serum creatinine \< or = to 1.5 x or (CrCl) 40 mL/min (using the Cockcroft-Gault formula)
      • /ALT (aspartate transaminase/alanine transaminase) \< or = to 3 x ULN (in the event of metastatic liver disease, an exception to this upper limit may be accepted in consultation with the study physician).
      • Total \< or = to 1.5 x ULN (Upper limit of normal) (except subjects with Gilbert Syndrome, who can have total bilirubin \< 3.0 mg/dL).
    • Subject Re-enrolment: This study permits the re-enrolment of a subject that has discontinued the study as a pre-treatment failure (i.e. subject has not been treated) after obtaining agreement from the medical monitor prior to re enrolling a subject. If re-enrolled, the subject must be re-consented.
  3. Age and Reproductive Status

    • Men and women, > or = to 18 years of age
    • Women of (WOCBP) must use method(s) of . WOCBP should therefore use an adequate method to avoid pregnancy for 23 weeks (30 days plus the time required for Nivolumab to undergo five half lives) after the last dose of drug.
    • Women must have a negative serum or urine pregnancy test (minimum sensitivity 25 IU/L or equivalent units of HCG) within 24 hours prior to the start of investigational product.
    • Women must not be breastfeeding
    • Men who are sexually active with WOCBP must use any contraceptive method with a failure rate of less than 1 percent per year. Men that are sexually active with WOCBP must follow instructions for birth control when the half life of the investigational drug is greater than 24 hours, contraception should be continued for a period of 90 days plus the time required for the investigational drug to undergo five half lives. The half life of nivolumab and ipilimumab is up to 25 days and 18 days, respectively. Given the blinded nature of the study, men who are sexually active with WOCBP must continue contraception for 31 weeks (90 days plus the time required for nivolumab to undergo five half lives) after the last dose of investigational drug.
    • Women who are not of childbearing potential (i.e. who are or surgically sterile and azoospermic men do not require contraception.

Exclusion criteria

Exclusion Criteria:

  1. Target Disease Exceptions

    • Active or . Subjects with brain metastases are eligible if these have been treated and there is no magnetic resonance imaging (MRI except where in which CT scan is acceptable) evidence of progression for at least 8 weeks after treatment is complete and within 28 days prior to first dose of study drug administration. Cases should be discussed with the medical monitor. There must also be no requirement for doses of systemic (> 10 mg/day prednisone equivalents) for at least 2 weeks prior to study drug administration.
  2. Medical History and Concurrent Diseases

    • Prior combination treatment directed against the /PDL1 (Programmed Death Ligand 1) axis (anti PD 1, anti PD-L1, anti PD L2), and anti CTLA 4 antibody. Prior monotherapy with these agents or other immune-stimulating/regulating agents is permitted.
    • Any serious or uncontrolled medical disorder that, in the opinion of the investigator, may increase the risk associated with study participation or study drug administration, impair the ability of the subject to receive protocol therapy, or interfere with the interpretation of study results.
    • Prior active within the previous 3 years except for locally curable cancers that have been apparently cured, such as basal or squamous cell skin cancer, superficial bladder cancer, or carcinoma in situ of the prostate, cervix, or breast.
    • Subjects with active, known or suspected disease. Subjects with vitiligo, type I diabetes mellitus, residual hypothyroidism due to autoimmune condition only requiring hormone replacement, psoriasis not requiring systemic treatment, or conditions not expected to recur in the absence of an external trigger are permitted to enroll.
    • Subjects with a condition requiring systemic treatment with either corticosteroids (> 10 mg daily prednisone equivalents) or other immunosuppressive medications within 14 days of study drug administration. Inhaled or topical steroids, and adrenal replacement doses > 10 mg daily prednisone equivalents are permitted in the absence of active autoimmune disease.
  3. Physical and Laboratory Test Findings

    • Any positive test result for virus or virus indicating acute or chronic infection
    • Known history of testing positive for (HIV) or known acquired immunodeficiency syndrome (AIDS).
  4. Allergies and Adverse Drug Reaction

    • History of allergy to study drug components.
    • History of severe reaction to any monoclonal antibody.
  5. Sex and Reproductive Status

    • who are pregnant or breastfeeding
    • Women with a positive pregnancy test at enrolment or prior to administration of study medication.
  6. Other Exclusion Criteria

    • Prisoners or subjects who are involuntarily incarcerated
    • Subjects who are compulsorily detained for treatment of either a psychiatric or physical (e.g. infectious disease) illness.
Terms in these criteria, in plain language(29)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

Leptomeningeal disease

Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.

Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

PD-1, PD-L1 and checkpoint inhibitors

PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.

PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
240 participants (actual)

Study arms

  • Experimental
    Ipilimumab and Nivolumab

    All Subjects will be treated with: Nivolumab at 3 mg/kg and ipilimumab at 1 mg/kg concurrently every 3 weeks for 4 doses followed by nivolumab only at 480mg every 4 weeks until progression (up to 2 years)

    Drug: Ipilimumab · Drug: Nivolumab

Interventions

  • CTLA-4 (cytotoxic T-lymphocyte-associated protein 4) is a key regulator of T cell activity. Ipilimumab is a CTLA-4 immune checkpoint inhibitor that blocks T-cell inhibitory signals induced by the CTLA-4 pathway, increasing the number of tumor reactive T effector cells which mobilize to mount a direct T-cell immune attack against tumor cells. CTLA-4 blockade can also reduce T regulatory cell function, which may lead to an increase in anti-tumor immune response.

    Also known as: YERVOY ®

  • A fully human immunoglobulin (Ig) G4 monoclonal antibody directed against the negative immunoregulatory human cell surface receptor programmed cell death-1 (PD-1,PCD-1) with immune checkpoint inhibitory and antineoplastic activities. Nivolumab binds to and blocks the activation of PD-1, an Ig superfamily transmembrane protein, by its ligands programmed cell death ligand 1 (PD-L1), overexpressed on certain cancer cells, and programmed cell death ligand 2 (PD-L2), which is primarily expressed on APCs (antigen presenting cells). This results in the activation of T-cells and cell-mediated immune responses against tumor cells or pathogens. Activated PD-1 negatively regulates T-cell activation and and plays a key role in in tumor evasion from host immunity.

    Also known as: Opdivo

06

What researchers measure

Primary outcomes

  1. Confirm the clinical efficacy of ipi/nivo in rare cancer histotypes which have demonstrated to be responsive to the regimen in the CA209-538 study.

    Clinical benefit rate for whole population (CR (complete response)+PR (partial response) assessed by radiographic evidence in accordance with RECIST 1.1 criteria

    Time frame: At 12 weeks following registration then as assessed by standard care until progression.

  2. Determine the proportion of participants with progression free survival at 6 months

    Progression-free survival based on clinical or radiographic evidence of progressive disease according to RECIST 1.1 criteria at 6 months.

    Time frame: Enrolment on study until 6 months.

Secondary outcomes

  1. To confirm the overall survival of participants receiving ipi/nivo in rare cancer histotypes which have demonstrated to be responsive to the regimen

    Quantification of OS.

    Time frame: From date of enrolment until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 5 years.

  2. To confirm the progression free survival of participants receiving ipi/nivo in rare cancer histotypes which have demonstrated to be responsive to the regimen

    Quantification of PFS

    Time frame: From date of enrolment until the date of first documented progression up to 5 years.

  3. Quantification of treatment related toxicities to ipi/nivo according to CTCAE V5.0

    Quantification of treatment related toxicities according to CTCAE V5.0.

    Time frame: From 1st dose until 30 days following last dose [up to max 2 years + 30 days].

07

Study locations

18 sites
08

References and documents

Publications

  • Carlino MS, Gao B, Michael M, Marshall H, Gunjur A, Chan H, Zielinski R, So J, Harris SJ, Kee D, Collins IM, Lam WS, Lyle M, Underhill C, Brown MP, Harrup R, Wong SF, Grady J, Ballinger M, Tavancheh E, Thomas DM, Palmer J, Wilkie K, Cebon J, Klein O. Nivolumab and Ipilimumab in Advanced Mismatch Repair-Deficient/Microsatellite Instability-High Noncolorectal Cancers: A Nonrandomized Clinical Trial. JAMA Oncol. 2026 Jan 1;12(1):39-47. doi: 10.1001/jamaoncol.2025.4721. PubMed 41231502 ↗
  • Gao B, Carlino MS, Michael M, Underhill C, Marshall H, Gunjur A, So J, Kee D, Antill Y, Lam WS, Chan H, Harrup R, Hamilton A, Grady J, Ballinger M, Tavancheh E, Yoon WH, Palmer J, Thomas D, Wilkie K, Cebon J, Klein O. Nivolumab and Ipilimumab Combination Treatment in Advanced Ovarian and Endometrial Clear Cell Cancers: A Nonrandomized Clinical Trial. JAMA Oncol. 2025 Sep 1;11(9):982-989. doi: 10.1001/jamaoncol.2025.1916. PubMed 40608313 ↗

Individual participant data

Plan to share: No — No plan to share individual participant data

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Aug 2021 to primary completion in Mar 2025, 42 months.

Of 85 non-industry phase 2 interventional studies under Neuroendocrine Tumors, half reached primary completion within 60 months of starting (the median), counting those still running; a quarter within 43 and three quarters within 83. This study's 42 months is below that.

Counting every sponsor, half of 98 studies reached it within 65 months; a quarter within 42 and three quarters within 88.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 6, 2021
First posted
Jul 21, 2021
StartActual
Aug 3, 2021
Primary completionActual
Mar 1, 2025
CompletionEst.
Mar 1, 2027
Last update
Feb 27, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 27, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04969887
Lead sponsor
Olivia Newton-John Cancer Research Institute
Responsible party
Sponsor
First posted
Jul 21, 2021
Start date
Aug 3, 2021
Primary completion
Mar 1, 2025
Completion
Mar 1, 2027 (estimated)
Last update
Feb 27, 2026

Study contacts

Oliver Klein, MD
study chair · ONJCRI and Austin Health
Jonathan Cebon, MD
study chair · ONJCRI and Austin Health

Oversight

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

Not currently enrolling

This study is active, not recruiting, as verified in Feb 2026. You cannot join it, but the record below documents what was studied.

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Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

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Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drugs tested here: Ipilimumab · Nivolumab

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