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Belisario Arango, MD, is a medical oncologist at Utah Hematology Oncology in Ogden, Utah.

ASH 2024 Preview for Community Oncologists: The Show and After Show

The American Society of Hematology (ASH) Annual Meeting and Exposition aims to educate oncology providers across an array of hematologic malignancies, with a focus on novel agents, drugs across the FDA pipeline, and more.

, co-hosts Kristie L. Kahl and Andrew Svonavec offer a glimpse at some of the presentations guaranteed to spark one’s curiosity, spur debate, and enhance the field even further. Some key highlights include:

 Continued advancements in CAR T-cell therapy are expected to revolutionize the treatment of hematologic malignancies.

 Bispecific antibodies, such as Epcoritamab (Epkinly), offer a novel approach to target multiple antigens on cancer cells.

 The assessment of MRD is becoming increasingly important in predicting treatment response and overall survival.

Advances in Acute Lymphoblastic Leukemia (ALL)

Blinatumomab (Blincyto) in pediatric ALL:

 The addition of blinatumomab to chemotherapy has shown promise in improving disease-free survival in high-risk pediatric ALL. This combination therapy may offer a more effective treatment option for young patients.

Acalabrutinib (Calquence) in mantle cell lymphoma (MCL):

 The FDA is set to review the approval of acalabrutinib with bendamustine or rituximab (Rituxan) for previously untreated MCL, based on data from the phase 3 ECHO trial (NCT02972840).

Asciminib (Scemblix) in chronic phase chronic myelogenous leukemia (CML-CP):

 The FDA recently granted accelerated approval to asciminib for newly diagnosed CML-CP. This tyrosine kinase inhibitor has shown favorable safety and tolerability profiles.

 isn't just about data, as the duo also offers food recommendations, tourist attractions and fun activities to partake in, as well as interesting facts about San Diego.

This is just a taste of the wealth of information and inspiration waiting at the 2024 ASH Annual Meeting. Check back for future meeting previews with 

Targeted Oncology co-hosts Kristie L. Kahl and Andrew Svonavec highlight abstracts for community oncologists to look out for at the upcoming ASH Annual Meeting in San Diego, with some additional tidbits to round out the main event.

News

The biologics license application (BLA) of the subcutaneous formulation of nivolumab (Opdivo) coformulated with human hyaluronidase (rHuPH20) has been accepted by the FDA.

Findings from the CheckMate -67T (NCT04810078) support this BLA of subcutaneous nivolumab as the trial met its coprimary pharmacokinetic end points and key secondary end point of overall response rate (ORR) vs intravenous (IV) nivolumab in clear cell renal cell carcinoma.

The FDA has set a Prescription Drug User Fee Act (PDUFA) goal date for December 29, 2024.

The FDA has accepted the BLA of the subcutaneous formulation of nivolumab coformulated with rHuPH20, also known as subcutaneous nivolumab, for all previously approved adult solid tumor indications of nivolumab as a monotherapy, monotherapy maintenance following completion of the combination therapy with nivolumab plus ipilimumab (Yervoy), or in combination with chemotherapy or cabozantinib (Cabometyx).

Results from the phase 3 CheckMate -67T trial of subcutaneous nivolumab support this application. In the trial, experts sought to evaluate subcutaneous nivolumab vs its intravenous (IV) formulation.

 Here, the subcutaneous form demonstrated noninferior pharmacokinetics and efficacy, as well as consistent safety compared with the IV formulation of nivolumab among patients with advanced or metastatic clear cell renal cell carcinoma (ccRCC) who have received prior systemic therapy.

A PDUFA goal date has been set for December 29, 2024. With this, subcutaneous nivolumab shows promise to become the first and only subcutaneously administered PD-1 inhibitor.

“We believe subcutaneous nivolumab has the potential to make a significant difference in the lives of patients, which is reinforced by the FDA’s acceptance of our application,” said Gina Fusaro, PhD, vice president, global program lead, Bristol Myers Squibb, in a press release.

“[Nivolumab] is a foundational PD-1 inhibitor approved for many different types of cancer, and our continued investment in research that puts patients first remains a priority. If approved by the FDA, the subcutaneous administration of nivolumab would provide patients and their physicians with a new option that delivers the same well-known benefits as IV [nivolumab] but with the improved convenience of an injection administered in 3 to 5 minutes rather than a 30- to 60-minute infusion,” Fusaro continued.

The phase 3, randomized, open-label CheckMate -67T trial is exploring subcutaneous administration of nivolumab coformulated with rHuPH20 vs IV nivolumab for the treatment of patients with advanced or metastatic ccRCC who were previously treated with systemic therapy.

In the study, 495 patients were randomly assigned to receive either subcutaneous nivolumab or IV nivolumab. Enrollment was open to patients with a histological confirmation of ccRCC, advanced RCC not amenable to curative or radiation therapy, metastatic RCC, those who received no more than 2 prior systemic therapies, those with intolerance or progression after last treatment regimen within 6 months of randomization, and those with a Karnofsky performance score ≥ 70 at screening.

Experts assessed the coprimary end points of time-averaged serum concentration over 28 days and trough serum concentration at steady-state of subcutaneous nivolumab vs IV nivolumab. A key secondary end point of the trial was ORR.

The study met its coprimary pharmacokinetic end points and key secondary end point of ORR with subcutaneous nivolumab in this patient population.

 Subcutaneous nivolumab was noninferior in regard to time-averaged nivolumab serum concentration over 28 days and steady-state trough serum concentration vs treatment with IV nivolumab. Additionally, subcutaneous nivolumab also demonstrated a noninferior ORR compared with IV nivolumab.

1. U.S. Food and Drug Administration accepts Bristol Myers Squibb’s application for subcutaneous nivolumab (nivolumab and hyaluronidase). News release. Bristol Myers Squibb. May 6, 2024. Accessed May 6, 2024. 

2. Phase 3 Check-Mate -67T trial of subcutaneous nivolumab (nivolumab and hyaluranisade) meets co-primary end points in advanced or metastatic clear cell renal cell carcinoma. News release. Bristol Myers Squibb. October 19, 2024. Accessed May 6, 2024. 

3. A study of subcutaneous nivolumab versus intravenous nivolumab in participants with previously treated clear cell renal cell carcinoma that is advanced or has spread (CheckMate-67T). ClinicalTrials.gov. Updated October 12, 2023. Accessed May 6, 2024. 

https://www.clinicaltrials.gov/study/NCT04810078

The FDA is considering a subcutaneous nivolumab formulation for various solid tumors based on promising data from the phase 3 CheckMate -67T trial. A target action date has been set for December 29, 2024.

Clinical

FDA Accepts BLA for Subcutaneous Nivolumab Across Various Solid Tumors

Ongoing studies of Ra- 223–based combinations

What are some other ongoing investigations looking at Ra-223-based combinations?

An expert discusses other ongoing investigations exploring radium-223-based combinations for the treatment of metastatic castration-resistant prostate cancer, highlighting key studies and their potential impact on clinical practice.

Case Based Peer Perspectives

Video Series

How do you monitor and manage anemia in patients with primary myelofibrosis prior to starting Janus kinase (JAK) inhibitor therapy?​

How do you monitor and manage anemia in patients with myelofibrosis even prior to starting a JAK inhibitor? If you're initially evaluating someone, they come in with hemoglobin of 7 or 8 g/dL or something like that, how does that impact your thinking, and how do you work that up?

The first thing is to make sure that they don't have something easily fixable [such as] iron, B12, or folate deficiency. Theoretically, if you don't have any nutritional cause or any immune causes, you could use erythropoietin analogs, but they are very tricky because they don't help with the spleen, at least in my experience, and they may increase the risk of clots. I try to avoid them if possible. If I have to start a JAK inhibitor, if they have symptoms, either I go away from ruxolitinib [Jakafi] or I start a low dose of ruxolitinib. Sometimes I use anabolic steroids and prednisone. We have the thalidomide/prednisone [regimen] that now is kind of forgotten about.

Erythropoietin-stimulating agents [ESAs] are limited in what they do, and certainly not helping other aspects of the disease. You did mention one of my favorite regimens, thalidomide/prednisone, which is looked over a bit nowadays, but has quite a potential for efficacy in terms of improving hemoglobin. But it’s probably something that's gone by the wayside in many practices.

As Dr Lekakis says, there are some other options that you can use. Danazol is sometimes something you can use perfectly in this patient population. From the JAK inhibitors, there is momelotinib [Ojjaara]. But a priority for me is to refer a patient for a stem cell transplant; when I was a fellow, we did the first allogeneic bone marrow transplant at the University of Illinois, Chicago, and it was a very nice experience.

Dr Lekakis] also mentioned steroids, [and we are] thinking about things like danazol, androgen derivatives. We saw from the MOMENTUM study [NCT04173494] looking at momelotinib that danazol is an active agent.

 It was a large, randomized trial, one of the first randomized trials with danazol. The focus there was on momelotinib, but there's also a lot to learn about what danazol could do as well from that study.

You're mainly talking about anemia here, and [if], the patient is not a candidate for a transplant or a clinical trial [there are] the 

, which basically double the response and reduction of the spleen.

Yes, these emerging therapies to some degree may change how we approach this disease. But I think that with some of these older therapies, especially when you're when you're first talking about someone who's coming in with anemia, you need to think about ESA, danazol, and thalidomide/prednisone.

I think that ESA is probably the most prominently used. How many of you are checking serum erythropoietin levels in these patients to assess their candidacy for ESAs, is that a common practice?

Now in terms of the patient who develops anemia while receiving a JAK inhibitor, ruxolitinib or fedratinib [Inrebic], how do you then approach that patient? This is the someone on therapy who may not have had prominent anemia before, but now that anemia is a little bit more obvious.

I would reduce the dose. I cannot stop [ruxolitinib] easily because of the withdrawal symptoms, but I would reduce the dose.

I probably would be giving a lower dose or initiating at a lower dose if they are anemic, and then I can go up later if I have to.

With the option of reducing dose, and now newer JAK inhibitors that are available, how do you decide between changing therapy vs reducing the dose of ruxolitinib?

I would try to maximize the use of ruxolitinib and then go to the next drug.

Hemoglobin levels do not deter me from initiating ruxolitinib

The most common answer in about half of the responders is that a hemoglobin of 7 to 8 g/dL is a concerning level. We’ve hit on this before that if ruxolitinib drops hemoglobin on average by 1 to 2 g/dL, if you start in the 7s, that means you're going to drop to the 6s at least, and that’s an uncomfortable spot to be. Others have said less than 7 g/dL, some 8 to 9 g/dL, and then at least one for hemoglobin levels not deterring from ruxolitinib initiation. But I think in general, the 7 to 8 g/dL makes sense from a pragmatic point of view, given what we know about ruxolitinib, and I've heard that answer quite frequently.

Kuykendall previously disclosed consulting fees from CTI Biopharma, GSK, and Imago Biosciences; payment or honoraria from BMS, Incyte, and MorphoSys; travel support from AbbVie and MorphoSys; and advisory board participation with Incyte; no other relevant participant disclosures are known.

1. Verstovsek S, Gerds AT, Vannucchi AM, et al. Momelotinib versus danazol in symptomatic patients with anaemia and myelofibrosis (MOMENTUM): results from an international, double-blind, randomised, controlled, phase 3 study. 

. 2023;401(10373):269-280. doi:10.1016/S0140-6736(22)02036-0

2. Pemmaraju N, Mead AJ, Somervaille T, et al. Transform-1: a randomized, double-blind, placebo-controlled, multicenter, international phase 3 study of navitoclax in combination with ruxolitinib versus ruxolitinib plus placebo in patients with untreated myelofibrosis. Blood. 2023;142(suppl 1):620.doi:10.1182/blood-2023-173509

During a live event, Andrew Kuykendall, MD, discussed management of anemia before and during use of JAK inhibitor for myelofibrosis in the second of 2 articles. 

Reevaluating Available Options for Anemia in Myelofibrosis

During a Targeted Oncology case-based roundtable event, Jeanne M. Palmer, MD, discussed the case of a patient with myelofibrosis whose platelet count declined during JAK inhibitor therapy.

This is the second of 2 articles based on this event. 

Six months ago, a 72-year-old woman with a history of hyperlipidemia (controlled on rosuvastatin [Crestor]) and hypertension (controlled on amlodipine [Norvasc]), developed itching, bloating, loss of appetite, a notable 20 lb weight loss, drenching night sweats, and significant fatigue.

Abdominal examination revealed splenomegaly, spleen palpable 8 cm below the left costal margin without hepatomegaly. CT scans of the chest, abdomen, and pelvis revealed moderate mediastinal lymphadenopathy and splenomegaly.

A peripheral blood smear produced a leucoerythroblastic picture with nucleated threads and immature cells in the periphery. Next-generation sequencing showed a 

 mutation (allele frequency, 22%). Bone marrow biopsy showed megakaryocyte proliferation with atypia, 3+ reticulin fibrosis. Cytogenics were normal.

Laboratory values

A decision to initiate ruxolitinib (Jakafi) was made. ​There was initial symptom improvement in appetite, night sweats, and weight at a dose of 10 mg twice daily, and the dose was increased to 15 mg twice daily. One month later, platelet count decreased to 100,000/μL, and the dose was reduced to 10 mg twice daily. One month later, platelet count dropped to 32,000/μL, and the patient received a red blood cell transfusion. After another month, platelet count remained at 85,000/μL.

Repeat red blood cell transfusion and continue ruxolitinib 10 mg twice daily

Continue ruxolitinib at reduced dose (5 mg twice daily)

There is not a right or a wrong answer. [The majority of participants chose] pacritinib [Vonjo]. If you stop ruxolitinib and go directly to pacritinib, which you can do, then you should be OK, but if you stop the ruxolitinib and their platelets go back up, always remember that sometimes, you can convince [insurance providers] to give you pacritinib, even if the platelets are higher off the ruxolitinib.

Pacritinib 200 mg twice daily (off label)

How do you define ruxolitinib failure? ​

What are triggers for you intervene earlier versus later?​

What are triggers for you to change therapy?​

Belisario Arango, MD

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