CRISTAL-APC - a trial of chemokine receptor inhibition for patients with pancreatic cancer

Trial ID: ISRCTN16463547

Other - Phase 2 - Recruiting

https://www.cancerresearchuk.org/about-cancer/find-a-clinical-trial/a-trial-looking-at-vp-002-and-chemotherapy-for-advanced-pancreatic-cancer-cristal-apc#undefined Background and study aims Pancreatic ductal adenocarcinoma (PDA) is an aggressive form of cancer associated with poor survival. Patients with metastatic PDA (mPDA) if they are fit enough, are generally treated with chemotherapy, but even with this their average life expectancy is under 1 year, so improvements in treatment are much needed. This study will investigate VP-002 in patients with mPDA. This drug blocks a protein called the CCR1 receptor, which can affect features of the immune system, such as chemicals and cells. In laboratory models of mPDA, VP-002 can slow down cancer growth, especially when combined with chemotherapy. It has been tested previously in humans, but not in patients with mPDA and not with chemotherapy. CRISTAL-APC is a medical study (clinical trial) led by Cambridge University Hospitals and the University of Cambridge. The study will see if VP-002 can be combined with chemotherapy to improve its effectiveness for patients with mPDA. Who can participate? Patients aged 18 years and over with advanced PDA. In total, the study aims to treat about 120 patients on the trial across the country at several hospitals. What does the study involve? The trial will combine VP-002 with two chemotherapies called nab-paclitaxel and gemcitabine, which are both standard treatments given to patients to treat their PDA. The chemotherapies are given as a drip (infusion) every week, for three in every four weeks. VP-002 is taken as a tablet twice a day. The study has two stages: in the first stage (Phase I trial), the goal is to work out the best doses of VP-002 and the chemotherapies together. In the second stage (Phase II trial), the goal is to assess how well this new combination of VP-002 when given chemotherapy works compared to the standard chemotherapies without VP-002. In the Phase I trial, everyone will be allocated a particular dose of VP-002 and the chemotherapy drugs. Different doses will be tried to select the best one by checking for any side effects, effects in the blood or the cancer tissue, and any signs of cancer shrinkage and survival. Participants will be asked questions about their health and symptoms, looking for changes in blood tests using imaging scans and where possible, looking for changes inside the cancer itself by taking biopsies. They will be monitored closely throughout the treatment; this will involve extra tests and visits to the hospital, but the goal is to catch any side effects so they can be managed early. In the Phase II trial, participants will be randomly split into two groups: some will receive all three drugs (VP-002 plus), and some will receive nab-paclitaxel plus gemcitabine chemotherapies that are used in standard care. This choice will be selected by a computer. After all the patients in the trial have finished treatment, we will compare the two groups to see which has better effectiveness. Anyone on the trial will be free to stop at any time and can withdraw information about themselves from the study. The treatments will be given for 6 months initially and participants can be treated for more than this (up to a year) depending on the benefit and how the treatment is tolerated. Treatment may stop early if the drugs are causing bad side effects or not helping shrink the cancer. A detailed information sheet will be provided for potential volunteers who are interested in taking part. If the addition of VP-002 to the standard chemotherapies nab-paclitaxel and gemcitabine looks more effective than just the standard chemotherapies alone, then the new combination may be further tested in larger studies to see whether it could become a new and approved option for treating patients with mPDA. What are the possible benefits and risks of participating? Participants may suffer side effects of treatment. Side effects for the trial medication are listed in the Participant Information Sheet. All adverse events will be checked as per the visit schedule outlined in the protocol and participants will be regularly followed up for any adverse events until resolution, stabilisation or 28 days from last trial treatment. To mitigate these side effects, the trial team will be encouraged to prescribe medication to ease any side effects of the trial medication experienced by the participants. Dose interruptions are permitted, for a maximum of 4 weeks as well as dose reduction (down to 600 mg or intermittent schedules) to manage toxicities related to trial medication. In case of severe reactions, trial treatment will be discontinued. Participants will be given contact details of their site study team, printed on the Participant Information Sheet. Participants will also receive a Participant ID card with local contact details. These contact details will also include an Out-of-hours service, in line with local site arrangements. Participants will be asked to self-administer oral medication twice a day. There is a risk that participants may lose the medication or overdose/underdose. Participants will be given a diary with clear instructions and will be asked to keep a record of the tablets they take. Participants will have contact with the site study team at regular intervals, where the diary will be checked and/or talked through. Participants will also be asked to return used and unused or empty medication bottles for trial drug reconciliation purposes. Participants are asked to attend up to 30 trial appointments. Whilst some of those appointments (especially follow-up visits) will happen at similar time points as normal clinic visits for active surveillance, this is a higher number of hospital encounters compared to standard of care. It may therefore be an increased burden compared with the standard of care. The protocol is designed to allow flexibility to conduct as many tests and assessments remotely as possible to keep additional visits to a minimum. Where extra financial costs are incurred as a result of participating in the trial, participants will be reimbursed for reasonable travel expenses and subsistence during their participation. Participants are asked to undergo CT scans every 8 weeks from the date of registration. Some CT scans will coincide with scans that patients would have as part of their routine care (dependent on standard of care practice at local sites). Before CT scans, patients will be asked to drink or have an injection of dye which will highlight areas of their body more clearly on the scan. If dye is given by injection, they may experience pain and/or bruising in the arm from the insertion of the cannula used to give the dye. They may also experience a warm feeling or metallic taste during the injection. If oral contrast is given, it may have a bitter taste to it. Participants will be informed of the procedure while joining the study. Magnetic resonance imaging (MRI) may be undertaken in place of a CT scan if the patient is known to be allergic to contrast. Most MRI scans are painless. However, some participants may find it uncomfortable to stay still. It is normal for the area of the body being imaged to feel slightly warm. Participants have been asked to speak to the local trial team if this bothers them. When the images are being recorded, they may hear and feel loud thumping sounds as the scanner can be noisy. They will be provided with earplugs or headphones to reduce the noise made by the scanner. Participants may experience mild discomfort/pain and/or bruising from where a trial blood sample is taken and from the insertion of the cannula used to give IVs. Participants are asked to undergo up to 3 (phase 1) or 4 (phase II) research biopsies as part of the trial until disease progression. Biopsies can cause discomfort and carry some risks (for example bleeding and infection) which participants will be aware of from their diagnostic biopsy procedure. As the biopsy for this study will be done at a specific time point, this may be an additional procedure for some participants as there is a chance they would not need a biopsy as part of their routine care. This procedure will be performed by delegated and trained members of staff who will conduct the needle biopsy and fully inform participants of the procedure beforehand. Where is the study run from? Cambridge Clinical Trials Unit (CCTU) (UK) When is the study starting and how long is it expected to run for? October 2024 to December 2030 Who is funding the study? Cycle Pharmaceuticals (UK) Who is the main contact? Dr Bristi Basu (Chief Investigator), bb313@cam.ac.uk

Conditions

• Advanced pancreatic ductal adenocarcinoma
• Cancer

Interventions

• VP-002, nab-paclitaxel, gemcitabine

Eligibility

Inclusion criteria

• 1. Histologically or cytologically (based on local assessment and per local guidelines) confirmed PDAC and variants. Either of the following: 1.1. Adenosquamous carcinoma 1.2. Ductal adenocarcinoma 1.3. Intraductal papillary mucinous neoplasm (IPMN) with an associated invasive carcinoma 1.4. Mucinous adenocarcinoma 1.5. Mucinous cystic neoplasm (MCN) with an associated invasive carcinoma 1.6. Undifferentiated carcinoma 2. Aged 18 years and over 3. Radiologically confirmed stage IV disease 4. Measurable disease by RECIST version 1.1 4.1. If the patient has received prior radiotherapy to the lesion, it should have progressed since irradiation to be included as a measurable lesion: 5. ECOG PS 0 or 1 6. Estimated life expectancy ≥12 weeks at screening 7. Adequate bone marrow function: 7.1. Absolute neutrophil count (ANC) ≥1.5 x 10^9 /L 7.2. Haemoglobin (Hb) ≥90 g/L for Phase I; ≥100 g/L for Phase II, with no blood transfusions in the preceding 14 days 7.3. Platelets ≥100 x 10^9 /L 8. Adequate liver function: 8.1. Aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) ≤2.5 x upper limit of normal range (ULN) (<5 x ULN in presence of liver metastasis) 8.2. Total bilirubin <1.5 x ULN 8.3. Total albumin ≥28 g/L 9. Adequate renal function: 9.1. Calculated creatinine clearance by Cockcroft Gault of ≥50 mL/min 10. Women of childbearing potential (WoCBP), male participants and their partners are required, and must be willing, to use 1 highly effective form PLUS 1 effective form of contraception for the duration of the trial and for six (6) months after the completion of the trial treatment. Updated 20/04/2026: 10. Women of childbearing potential (WoCBP) (see section 14.1 for the definition of WoCPB) and their partners are required, and must be willing, to use 1 highly effective form PLUS 1 effective form of contraception for the duration of the trial and for 6 months after the completion of the trial treatment. Male participants and their female partners must be willing to use 1 highly effective form PLUS 1 effective form of contraception for the duration of the trial and for 3 months after the completion of the trial treatment. 11. Patient is willing and able to comply with the visit schedule outlined in the protocol for the duration of the trial 12. Absence of any psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule; those conditions should be discussed with the patient before registration in the trial 13. Have given written informed consent 14. Be enrolled/registered in the Precision-Panc Master Protocol study Inclusion Criteria – Phase I Specific: In addition to the inclusion criteria for Phase I and Phase II above: 1. Tumour site amenable to biopsy 2. Confirmation of adequate tumour tissue sample: archival tissue if taken within 8 weeks with no intervening therapy and the site must confirm if >100 cells are present in the sample, or a baseline tumour biopsy 3. Gemcitabine and Nab-paclitaxel deemed reasonable treatment or re-treatment options: 3.1. Have not received it previously OR 3.2. Have received it previously and tolerated treatment without significant dose. Inclusion Criteria – Phase II Specific: 1. Received no prior systemic therapy for stage IV disease; or received prior systemic anti-cancer therapy as neo-adjuvant or adjuvant therapy AND such treatment was completed at least 6 months previously 2. Confirmation of adequate tumour tissue sample: archival tissue within 2 years of study entry. This can include a primary resection specimen, or consented for baseline tumour biopsy, or a baseline tumour biopsy

Exclusion criteria

• Phase I and Phase II: 1. Patients with operable or locally advanced PDAC 2. Other invasive malignancies with the exception of adequately treated carcinoma in situ of the cervix or non-melanoma skin cancer. Cancer survivors who have undergone potentially curative treatment for a prior malignancy, have no recurrence within the last 2 years and are deemed at negligible risk for recurrence are eligible for trial 3. Significant acute or chronic medical or psychiatric condition, disease or laboratory abnormality which in the judgment of the investigator would place the patient at undue risk or interfere with the trial. Examples include, but are not limited to: 3.1. Patients who have had a venous thromboembolic event who are not appropriately anticoagulated or have had a significant bleeding episode in the 3 weeks prior to randomization 3.2. Patients with symptoms of severe chronic obstructive airways disease or significant shortness of breath at rest AND have an Forced expiratory volume (FEV)1 < 1.0 L within the last 6 months 3.3. Patients with a history of interstitial lung disease, sarcoidosis, silicosis, idiopathic pulmonary fibrosis, pulmonary hypersensitivity pneumonitis, cystic fibrosis or bronchiectasis 3.4. Patients with uncontrolled ischaemic heart or other cardiovascular event (myocardial infarction, new angina, stroke transient ischaemic attack (TIA), or new congestive cardiac failure (CCF) within the last 6 months 3.5. Patients with stable but significant cardiovascular disease defined by heart failure (New York Heart Association Functional Classification (NYHF) III or IV) or frequent angina 3.6. Presence of active infection 3.7. Cirrhotic liver disease, known chronic active or acute hepatitis B, or hepatitis C 3.8. Known allergy or hypersensitivity to gemcitabine or nab-paclitaxel or CCR1 inhibitors or the components of VP-002. Components of VP-002 are Kollidon SR, lactose monohydrate, fumaric acid, magnesium stearate, Opadry II Yellow 4. Women who are pregnant, plan to become pregnant or are lactating during the trial period 5. Resting ECG with mean QTc interval of >480 ms msec (confirmation of any prolongation to be used based on the average QT interval by Fridericia (QTcF) value of 3 reads within a 30-minute time period). Concomitant use of medications known to prolong QT interval, or with factors that increase the risk of QTc prolongation or risk of arrhythmic events (such as heart failure, hypokalaemia, congenital long QT syndrome, family history of long QT syndrome), or unexplained sudden death under 40 years of age. Inability to discontinue medication with agents designated as having a risk of Torsades de Pointes due to QT prolongation 6. Concurrent participation in an interventional clinical trial (observational studies allowed) 7. Patients that have not been enrolled onto the Precision Panc Master Protocol Exclusion Criteria – Phase I Specific: 1. Any unresolved toxic effects Grade ≥2 according to NCI CTCAE v 5.0 from prior chemotherapy administered for locally advanced or metastatic disease (with the exception of alopecia, Gr 2 peripheral neuropathy and haemoglobin ≥90g/L with no blood transfusions in the preceding 28 days Exclusion Criteria – Phase II Specific: 1. Prior chemotherapy for locally advanced or metastatic pancreatic adenocarcinoma 2. Any unresolved toxic effects Grade ≥2 according to NCI CTCAE v 5.0 from previous treatment for cancer (adjuvant or neoadjuvant) before randomization, except for alopecia, grade 2 peripheral neuropathy, and haemoglobin level ≥100 g/L, with no blood transfusions in the preceding 28 days

Sponsor

Cambridge Clinical Trials Unit (CCTU)

Source: https://www.isrctn.com/

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