Drugs, Health Technologies, Health Systems

Reimbursement Recommendation

Talquetamab (Talvey)

Indication: For the treatment of adult patients with relapsed or refractory multiple myeloma who have received at least 3 prior lines of therapy, including a proteasome inhibitor, an immunomodulatory agent and an anti-CD38 monoclonal antibody, and have demonstrated disease progression on or after the last therapy

Sponsor: Janssen Inc.

Final recommendation: Reimburse with conditions

Summary

What Is the Reimbursement Recommendation for Talvey?

Canada’s Drug Agency (CDA-AMC) recommends that Talvey be reimbursed by public drug plans for the treatment of adult patients with relapsed or refractory (r/r) multiple myeloma (MM) who have received at least 3 prior lines of therapy (LOTs), including a proteasome inhibitor (PI), an immunomodulatory agent (IMiD), an anti-CD38 monoclonal antibody (mAb), and a prior B-cell maturation antigen (BCMA)-directed therapy, and have demonstrated disease progression on or after the last therapy if certain conditions are met.

Why Did CDA-AMC Recommend Reimbursement?

CDA-AMC previously reviewed Talvey for a broader population of adults with r/r MM who had received at least 3 prior LOTs and had demonstrated disease progression on or after the last therapy and issued a recommendation not to reimburse. This resubmission focuses on a narrower population who have also received prior BCMA-directed therapy and includes new evidence to address gaps identified in the previous review.

Evidence from the single-arm MonumenTAL-1 study showed that 66.7% of patients responded to Talvey, with responses lasting a median of 19.2 months. Results also suggested that Talvey may delay disease progression and help patients live longer. The pan-Canadian Oncology Drug Review Expert Review Committee (pERC) considered the clinical experts’ input indicating that the treatment response, durability of response, and survival outcomes are clinically meaningful given the poor outcomes and limited treatment options in this population. Supportive evidence from the retrospective REALiTAL study showed generally consistent response and survival outcomes, with no new safety concerns identified. Evidence from an indirect treatment comparison (ITC) suggested that Talvey may improve survival and response compared with treatments used in clinical practice. However, confidence in the clinical value of Talvey was limited by limitations such as the phase I/II, single-arm, open-label study design of the MonumenTAL-1 trial and uncertainty about whether the treatments included in the ITC adequately represented treatment options used in Canadian clinical practice.

pERC recognized that there is a significant unmet clinical need for patients with r/r MM who have received at least 3 prior LOTs and a BCMA-directed therapy because of poor outcomes and limited effective treatment options. pERC also acknowledged the challenges in generating comparative evidence in this heavily pretreated population. Considering these and the totality of the evidence reviewed, pERC recommended that Talvey be reimbursed because it may address the significant unmet clinical need sufficiently to warrant a positive recommendation despite the uncertainty in the clinical value.

Which Patients Are Eligible for Coverage?

Talvey should only be covered for adult patients who have a documented diagnosis of r/r MM, received at least 3 prior LOTs including a PI, an ImiD, and an anti-CD38 mAb, and a BCMA-directed therapy and have demonstrated disease progression on or after the last therapy. Talvey should not be initiated in patients with active central nervous system involvement or signs of meningeal involvement, primary amyloidosis, or plasma cell leukemia.

What Are the Conditions for Reimbursement?

Talvey should be initiated at treatment centres with adequate resources to manage severe reactions, including cytokine release syndrome and neurologic toxicities, and have access to tocilizumab. Treatment should be discontinued upon the occurrence of disease progression or unacceptable toxicity due to Talvey. The total cost of Talvey should not exceed the total cost of treatment with the least costly comparator for the same indication.

Review Background

Highlights of Input From Interested Parties

The patient group (Myeloma Canada) noted the following regarding impacts of the disease, unmet needs, and important outcomes:

The clinician groups (Ontario Health [Cancer Care Ontario] [OH (CCO)] Hematology Cancer Drug Advisory Committee [DAC] and Canadian Myeloma Research Group [CMRG]) and the clinical experts consulted by CDA-AMC noted the following regarding unmet needs arising from the disease and place in therapy for the drug under review:

The participating public drug programs provided input regarding considerations for initiation, renewal, discontinuation, and prescribing of therapy.

Recommendation

With a vote of 13 in favour to 3 against, pERC recommends that talquetamab be reimbursed for the treatment of adult patients with r/r MM who have received at least 3 prior LOTs, including a PI, an IMiD, an anti-CD38 mAb, and a BCMA-directed therapy, and have demonstrated disease progression on or after the last therapy only if the conditions listed in Table 1 are met.

This pERC recommendation for talquetamab is for adult patients with TCE r/r MM and prior BCMA-directed therapy who have demonstrated disease progression on or after the last therapy and is not for the broader Health Canada indication.

Table 1: Reimbursement Conditions and Reasons

Reimbursement condition

Reason

Implementation guidance

Initiation

1. Talquetamab should be reimbursed in adults aged 18 years and older who meet the following criteria:

1.1. documented diagnosis of r/r MM

1.2. received at least 3 prior LOTs, including a PI, an ImiD, and an anti-CD38 mAb

1.3. received prior BCMA-directed therapy

1.4. demonstrated disease progression on or after the last therapy.

Evidence from the MonumenTAL-1 study demonstrated that treatment with talquetamab resulted in a clinical benefit in patients with r/r MM who have these characteristics.

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2. Talquetamab should not be initiated in patients with active CNS involvement or those whose are exhibiting signs of meningeal involvement of MM, primary amyloidosis, or plasma cell leukemia.

The MonumenTAL-1 study excluded patients with active CNS involvement or who were exhibiting signs of meningeal involvement of MM, primary amyloidosis, or plasma cell leukemia. There is no evidence of efficacy and safety in this population.

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Discontinuation

3. Reimbursement of talquetamab should be discontinued upon occurrence of any of the following:

3.1. disease progression

3.2. unacceptable toxicity attributed to talquetamab.

In the MonumenTAL-1 study, patients discontinued treatment upon disease progression or unacceptable toxicity, which is consistent with clinical practice.

There is no specified maximum duration of treatment or maximum number of doses in the product monograph. The attending clinician may discontinue treatment with talquetamab using their professional judgment regarding the safety and benefit to the patient.

Prescribing

4. Talquetamab should be initiated by health professionals at treatment centres with adequate medical resources and personnel to manage severe reactions, including CRS and neurologic toxicities.

This is meant to ensure that talquetamab is prescribed for appropriate patients and adverse effects are managed in an optimized and timely manner.

pERC recognized the need for ready access to tocilizumab for the treatment of CRS and noted that most patients would require inpatient hospitalization during initiation of talquetamab therapy.

Pricing

5. The total cost of talquetamab should be negotiated so that it does not exceed the total cost of treatment with the least costly comparator for the same indication.

Based on the committee’s assessment of the evidence, it is uncertain whether talquetamab demonstrates acceptable clinical value compared with relevant comparators. Therefore, the total cost of talquetamab should be no more than the least costly relevant comparator.

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BCMA = B-cell maturation antigen; CNS = central nervous system; CRS = cytokine release syndrome; IMiD = immunomodulatory drug; LOT = line of therapy; mAb = monoclonal antibody; MM = multiple myeloma; pERC = pan-Canadian Oncology Drug Review Expert Review Committee; PI = proteasome inhibitor; r/r = relapsed or refractory.

Rationale for the Recommendation

Clinical Value

This resubmission focused on evidence from the MonumenTAL-1 study in adults with r/r MM who had received at least 3 prior LOTs, including a PI, an IMiD, an anti-CD38 mAb, and a BCMA-directed therapy, and whose disease had progressed on or after the last therapy. The resubmission involved a larger sample size and included updated evidence from a longer follow-up of the MonumenTAL-1 study, a sponsor-submitted ITC evaluating talquetamab versus RWPC treatment, and a supportive retrospective study (REALiTAL). Based on the totality of the clinical evidence, pERC concluded it is uncertain whether talquetamab demonstrates acceptable clinical value compared with available treatment options for adult patients with r/r MM who have received at least 3 prior LOTs, including a PI, an IMiD, an anti-CD38 mAb, and a BCMA-directed therapy, and have demonstrated disease progression on or after the last therapy. Although pERC acknowledged that patients with TCE r/r MM whose disease has progressed following BCMA-directed therapy have no established effective treatment options, they noted that current available treatment options include pomalidomide plus cyclophosphamide plus dexamethasone (PCd), pomalidomide plus dexamethasone (Pd), carfilzomib plus cyclophosphamide plus dexamethasone (KCd), carfilzomib plus dexamethasone (Kd), and selinexor plus bortezomib plus dexamethasone (SVd). Given that talquetamab is expected to be a treatment option following BCMA-directed therapy, acceptable clinical value was considered relative to available treatment options in the Canadian context for this heavily pretreated population.

Evidence from 1 ongoing phase I/II, single-arm, open-label study (MonumenTAL-1) demonstrated that after a median duration of treatment of 30.3 months with talquetamab in patients with TCE r/r MM whose disease has progressed following BCMA-directed therapy, the overall response rate (ORR) was 66.7%, with a median duration of response (DoR) among patients who responded of 19.2 months. The median PFS was 7.7 months, and the median OS was 28.3 months. pERC acknowledged the clinical experts’ observation that although the single-arm design of the MonumenTAL-1 study precluded conclusions about the comparative effects of talquetamab relative to available treatment options, the observed response and survival outcomes as well as the durability of response were clinically meaningful, particularly given the poor prognosis, limited treatment options after BCMA-directed therapy, and poor outcomes in patients who have been heavily pretreated. The committee also noted that the supportive retrospective REALiTAL study showed generally consistent response and survival outcomes with talquetamab in a real-world clinical setting and did not identify any new safety concerns. However, pERC observed that the evidence was limited by the study’s retrospective, noncomparative design.

Evidence from the sponsor-submitted ITC evaluating the effect of talquetamab versus RWPC using individual patient data from the MonumenTAL-1 study and observational data from the LocoMMotion and MoMMent studies suggested that talquetamab was associated with longer OS and PFS and higher ORR and very good partial response (VGPR) or better response rates compared with RWPC treatment. However, HRQoL and safety outcomes were not assessed. The confidence in the ITC findings was limited because of important methodological limitations, including the small sample size, risk of residual confounding, and heterogeneity in the RWPC regimens, Also, because the RWPC treatment did not include all the available treatment options (PCd, Pd, KCd, Kd, and SVd) in the Canadian context, its relevance as a comparator in the ITC is uncertain.

pERC considered and discussed the uncertainties in the submitted evidence due to the limitations, including the single-arm design of the MonumenTAL-1 study. pERC acknowledged that patients identified a need for more effective treatment options with a manageable side effect profile that prolongs survival, provides durable disease control, relieves symptoms, and preserves HRQoL. pERC determined that the available evidence suggests that talquetamab meets some needs, such as prolonging survival and maintaining disease control. The committee also considered the clinical experts’ input indicating that the observed OS, PFS, ORR, and DoR were clinically meaningful in this heavily pretreated population with limited effective treatment options. Therefore, pERC concluded that, although the evidence suggests talquetamab has uncertain clinical value due to the limited treatment options and poor outcomes in this heavily pretreated population, the drug may address a significant unmet clinical need to a degree that justifies a positive recommendation despite the uncertainty in the clinical value.

Further information on the committee’s discussion around clinical value is provided in the Summary of Deliberation section.

Considering Significant Unmet Clinical Need

pERC noted that patients and clinicians identified prolonging survival, achieving effective and durable disease control, and relieving symptoms and preserving HRQoL as important treatment goals. pERC acknowledged that clinician groups and the clinical experts consulted by CDA-AMC highlighted the absence of established effective treatment options, the prevalence of poor clinical outcomes, and the diminishing effectiveness and durability of available treatments with successive lines. pERC acknowledged that there is a significant unmet clinical need for patients with r/r MM who have received at least 3 prior LOTs and prior BCMA-directed therapy. pERC also acknowledged the challenges in generating comparative evidence in this late-line population because of the difficulty in selecting an appropriate comparator for randomized trials in patients who have received multiple prior therapies.

Further information on the committee’s discussion around unmet clinical need is provided in the Summary of Deliberation section.

Considering Significant Unmet Nonclinical Need or Health Inequity

pERC acknowledged that there are unmet nonclinical needs related to treatment and caregiver burden, including hospitalization during step-up dosing, intensive monitoring, and travel requirements, which may particularly affect patients living in rural, remote, or underserved communities. pERC also acknowledged that MM disproportionately affects Black individuals, who were underrepresented in the clinical evidence for talquetamab. However, pERC concluded that the submitted evidence did not address these identified unmet nonclinical needs or health inequities.

Further information on the committee’s discussion around unmet nonclinical need is provided in the Distinct Social and Ethical Considerations domain in the Summary of Deliberation section.

Developing the Recommendation

Due to the uncertainty in clinical value, pERC could not recommend whether to reimburse talquetamab based on clinical value alone. Therefore, they also considered whether talquetamab addresses a significant unmet clinical need. pERC concluded that talquetamab addresses a significant unmet clinical need with an acceptable level of certainty. Based on the preceding considerations, pERC recommends that talquetamab be reimbursed. As part of the deliberation on whether to recommend reimbursement or not, the committee also considered unmet nonclinical need and health inequity. Information on this discussion is provided in the Distinct Social and Ethical Considerations domain in the Summary of Deliberation section.

Because pERC recommended that talquetamab be reimbursed, the committee also deliberated on whether reimbursement conditions should be added to address important economic considerations, health system impacts, or social and ethical considerations, or to ensure clinical value is realized. The resulting reimbursement conditions, with accompanying reasons and implementation guidance, are stated in Table 1.

Summary of Deliberation

pERC considered all domains of value of the deliberative framework before developing its recommendation: clinical value, unmet clinical need, distinct social and ethical considerations, economic considerations, and impacts on health systems. For further information on the domains of value, refer to Expert Committee Deliberation at Canada’s Drug Agency.

The committee considered the following key discussion points, organized by the 5 domains of value.

Clinical Value

Unmet Clinical Need

Distinct Social and Ethical Considerations

Economic Considerations

Impacts on Health Systems

Sources of Information Used by the Committee

To make its recommendation, the committee considered the following information (links to the full documents for the review can be found on the project webpage):

pERC Information

Members of the Committee

Dr. Catherine Moltzan (Chair), Dr. Kelvin Chan (Vice‑Chair), Paul Agbulu, Dr. Phillip Blanchette, Dr. Matthew Cheung, Annette Cyr, Dr. Jennifer Fishman, Dr. Prafull Ghatage, Dr. Jason Hart, Terry Hawrysh, Dr. Yoo‑Joung Ko, Dr. Aly‑Khan Lalani, Amy Peasgood, Dr. Anca Prica, Dr. Michael Raphael, Dr. Adam Raymakers, Dr. Patricia Tang, Dr. Pierre Villeneuve, and Danica Wasney.

Meeting date: August 12, 2026

Regrets: Two expert committee members did not attend.

Conflicts of interest: None