Lymphoma & Plasma Cell Disorders

Photo by Steve Fisch

Experiments in mice have shown that injecting immune-stimulating agents directly into a tumor can help the immune system eradicate tumors in other areas of the body.

The approach worked for several cancers, including lymphomas.

The researchers believe the local application of the agents could serve as a rapid and relatively inexpensive cancer therapy that is unlikely to cause the adverse effects often seen with more widespread immune stimulation.

“Our approach uses a one-time application of very small amounts of two agents to stimulate the immune cells only within the tumor itself,” said Ronald Levy, MD, of Stanford University Medical Center in California.

“In the mice, we saw amazing, body-wide effects, including the elimination of tumors all over the animal. This approach bypasses the need to identify tumor-specific immune targets and doesn’t require wholesale activation of the immune system or customization of a patient’s immune cells.”

Dr Levy and his colleagues described this approach in Science Translational Medicine.

The method involves reactivating cancer-specific T cells by injecting microgram amounts of two agents directly into the tumor site.

One of the agents is an unmethylated CG–enriched oligodeoxynucleotide (CpG)—a Toll-like receptor 9 (TLR9) ligand. It works with nearby immune cells to amplify the expression of OX40 on the surface of T cells.

The other agent is an antibody that binds to OX40. It activates the T cells to lead the charge against the cancer cells.

Because the agents are injected directly into the tumor, only T cells that have infiltrated it are activated. In effect, these T cells are “prescreened” by the body to recognize only cancer-specific proteins.

Some of these tumor-specific, activated T cells then leave the original tumor to find and destroy other identical tumors throughout the body.

The researchers found this approach worked well in mice with A20 B-cell lymphoma tumors transplanted in two sites on their bodies.

Injecting one tumor site with the agents caused regression of the untreated tumor as well as the treated one. In this way, 87 of 90 mice were cured.

Although lymphoma recurred in 3 of the mice, the tumors again regressed after a second treatment with CpG and anti-OX40.

The researchers saw similar results in mice with melanoma as well as breast and colon cancer.

Mice genetically engineered to spontaneously develop breast cancers in all 10 of their mammary pads also responded to the treatment. Treating the first tumor that arose often prevented the occurrence of future tumors and significantly increased the animals’ life span, the researchers found.

Finally, the team explored the specificity of the T cells by transplanting two types of tumors into mice.

They transplanted A20 lymphoma cells in two locations and a colon cancer cell line in a third location. Treatment of one of the lymphoma sites caused the regression of both lymphoma tumors but did not affect the colon cancer cells.

“This is a very targeted approach,” Dr Levy said. “Only the tumor that shares the protein targets displayed by the treated site is affected. We’re attacking specific targets without having to identify exactly what proteins the T cells are recognizing.”

Dr Levy and his colleagues have launched a clinical trial (NCT03410901) to test this treatment approach. The researchers hope to determine the adverse effects and optimal dose of the TLR9 agonist SD-101, the anti-OX40 antibody BMS 986178, and radiation therapy in patients with low-grade B-cell non-Hodgkin lymphomas.

If the trial is successful, Dr Levy believes the treatment could be useful for many tumor types.

“I don’t think there’s a limit to the type of tumor we could potentially treat,” he said, “as long as it has been infiltrated by the immune system.”

Photo by Steve Fisch

Experiments in mice have shown that injecting immune-stimulating agents directly into a tumor can help the immune system eradicate tumors in other areas of the body.

The approach worked for several cancers, including lymphomas.

The researchers believe the local application of the agents could serve as a rapid and relatively inexpensive cancer therapy that is unlikely to cause the adverse effects often seen with more widespread immune stimulation.

“Our approach uses a one-time application of very small amounts of two agents to stimulate the immune cells only within the tumor itself,” said Ronald Levy, MD, of Stanford University Medical Center in California.

“In the mice, we saw amazing, body-wide effects, including the elimination of tumors all over the animal. This approach bypasses the need to identify tumor-specific immune targets and doesn’t require wholesale activation of the immune system or customization of a patient’s immune cells.”

Dr Levy and his colleagues described this approach in Science Translational Medicine.

The method involves reactivating cancer-specific T cells by injecting microgram amounts of two agents directly into the tumor site.

One of the agents is an unmethylated CG–enriched oligodeoxynucleotide (CpG)—a Toll-like receptor 9 (TLR9) ligand. It works with nearby immune cells to amplify the expression of OX40 on the surface of T cells.

The other agent is an antibody that binds to OX40. It activates the T cells to lead the charge against the cancer cells.

Because the agents are injected directly into the tumor, only T cells that have infiltrated it are activated. In effect, these T cells are “prescreened” by the body to recognize only cancer-specific proteins.

Some of these tumor-specific, activated T cells then leave the original tumor to find and destroy other identical tumors throughout the body.

The researchers found this approach worked well in mice with A20 B-cell lymphoma tumors transplanted in two sites on their bodies.

Injecting one tumor site with the agents caused regression of the untreated tumor as well as the treated one. In this way, 87 of 90 mice were cured.

Although lymphoma recurred in 3 of the mice, the tumors again regressed after a second treatment with CpG and anti-OX40.

The researchers saw similar results in mice with melanoma as well as breast and colon cancer.

Mice genetically engineered to spontaneously develop breast cancers in all 10 of their mammary pads also responded to the treatment. Treating the first tumor that arose often prevented the occurrence of future tumors and significantly increased the animals’ life span, the researchers found.

Finally, the team explored the specificity of the T cells by transplanting two types of tumors into mice.

They transplanted A20 lymphoma cells in two locations and a colon cancer cell line in a third location. Treatment of one of the lymphoma sites caused the regression of both lymphoma tumors but did not affect the colon cancer cells.

“This is a very targeted approach,” Dr Levy said. “Only the tumor that shares the protein targets displayed by the treated site is affected. We’re attacking specific targets without having to identify exactly what proteins the T cells are recognizing.”

Dr Levy and his colleagues have launched a clinical trial (NCT03410901) to test this treatment approach. The researchers hope to determine the adverse effects and optimal dose of the TLR9 agonist SD-101, the anti-OX40 antibody BMS 986178, and radiation therapy in patients with low-grade B-cell non-Hodgkin lymphomas.

If the trial is successful, Dr Levy believes the treatment could be useful for many tumor types.

“I don’t think there’s a limit to the type of tumor we could potentially treat,” he said, “as long as it has been infiltrated by the immune system.”

Photo by Steve Fisch

Experiments in mice have shown that injecting immune-stimulating agents directly into a tumor can help the immune system eradicate tumors in other areas of the body.

The approach worked for several cancers, including lymphomas.

The researchers believe the local application of the agents could serve as a rapid and relatively inexpensive cancer therapy that is unlikely to cause the adverse effects often seen with more widespread immune stimulation.

“Our approach uses a one-time application of very small amounts of two agents to stimulate the immune cells only within the tumor itself,” said Ronald Levy, MD, of Stanford University Medical Center in California.

“In the mice, we saw amazing, body-wide effects, including the elimination of tumors all over the animal. This approach bypasses the need to identify tumor-specific immune targets and doesn’t require wholesale activation of the immune system or customization of a patient’s immune cells.”

Dr Levy and his colleagues described this approach in Science Translational Medicine.

The method involves reactivating cancer-specific T cells by injecting microgram amounts of two agents directly into the tumor site.

One of the agents is an unmethylated CG–enriched oligodeoxynucleotide (CpG)—a Toll-like receptor 9 (TLR9) ligand. It works with nearby immune cells to amplify the expression of OX40 on the surface of T cells.

The other agent is an antibody that binds to OX40. It activates the T cells to lead the charge against the cancer cells.

Because the agents are injected directly into the tumor, only T cells that have infiltrated it are activated. In effect, these T cells are “prescreened” by the body to recognize only cancer-specific proteins.

Some of these tumor-specific, activated T cells then leave the original tumor to find and destroy other identical tumors throughout the body.

The researchers found this approach worked well in mice with A20 B-cell lymphoma tumors transplanted in two sites on their bodies.

Injecting one tumor site with the agents caused regression of the untreated tumor as well as the treated one. In this way, 87 of 90 mice were cured.

Although lymphoma recurred in 3 of the mice, the tumors again regressed after a second treatment with CpG and anti-OX40.

The researchers saw similar results in mice with melanoma as well as breast and colon cancer.

Mice genetically engineered to spontaneously develop breast cancers in all 10 of their mammary pads also responded to the treatment. Treating the first tumor that arose often prevented the occurrence of future tumors and significantly increased the animals’ life span, the researchers found.

Finally, the team explored the specificity of the T cells by transplanting two types of tumors into mice.

They transplanted A20 lymphoma cells in two locations and a colon cancer cell line in a third location. Treatment of one of the lymphoma sites caused the regression of both lymphoma tumors but did not affect the colon cancer cells.

“This is a very targeted approach,” Dr Levy said. “Only the tumor that shares the protein targets displayed by the treated site is affected. We’re attacking specific targets without having to identify exactly what proteins the T cells are recognizing.”

Dr Levy and his colleagues have launched a clinical trial (NCT03410901) to test this treatment approach. The researchers hope to determine the adverse effects and optimal dose of the TLR9 agonist SD-101, the anti-OX40 antibody BMS 986178, and radiation therapy in patients with low-grade B-cell non-Hodgkin lymphomas.

If the trial is successful, Dr Levy believes the treatment could be useful for many tumor types.

“I don’t think there’s a limit to the type of tumor we could potentially treat,” he said, “as long as it has been infiltrated by the immune system.”

Photo by Aaron Logan

Existing drugs could be combined to treat double-hit lymphoma (DHL), according to preclinical research published in Science Translational Medicine.

The drugs are tigecycline, an antibiotic, and venetoclax, a BCL2 inhibitor.

Researchers observed promising activity with these drugs in combination, both in cell lines and mouse models of DHL.

The team therefore believes the drugs could be repurposed to treat DHL, which currently has a dismal prognosis.

Study author Micol Ravà, PhD, of the European Institute of Oncology in Milan, Italy, and her colleagues noted that DHL is driven by the abnormal activation of MYC and BCL2. However, selective BCL2 inhibitors like venetoclax have failed to halt disease progression in DHL patients.

Seeking a way to sensitize DHL to BCL2 inhibitors, the researchers turned to tigecycline, which interferes with mitochondria to trigger a MYC-dependent cell death pathway.

The team found that tigecycline and venetoclax demonstrated synergy in 5 DHL cell lines. The drugs were synergistic in 3 cell lines—Karpas-422, SU-DHL-6, and DOHH-2—in which neither drug alone showed significant pro-apoptotic activity.

In 2 other cell lines—SU-DHL-4 and OCI-LY8—venetoclax was active when given alone, but its activity was enhanced by the addition of tigecycline.

In mouse models of DHL (using the human cell lines SU-DHL-6, DOHH-2, and OCI-LY8), each of the drugs alone were able to slow tumor progression somewhat.

However, combination tigecycline and venetoclax exhibited “strong antitumoral activity,” according to the researchers. In fact, the combination caused full disease regression in all 8 SU-DHL-6 mice and 3 of 9 OCI-LY8 mice.

Dr Ravà and her colleagues also found the combination produced “rapid and marked tumor regression” in mice with a patient-derived xenograft.

The researchers observed no toxicity when tigecycline and venetoclax were given at low doses. However, mice receiving more aggressive treatment had some inflammation in the liver and spleen. And some mice treated with high doses of tigecycline and venetoclax died within 1 week of treatment initiation.

Finally, Dr Ravà and her colleagues found that tigecycline and venetoclax each synergized with rituximab. The team therefore concluded that tigecycline and venetoclax “have the potential to reinforce rituximab-containing therapies in the clinic.”

Photo by Aaron Logan

Existing drugs could be combined to treat double-hit lymphoma (DHL), according to preclinical research published in Science Translational Medicine.

The drugs are tigecycline, an antibiotic, and venetoclax, a BCL2 inhibitor.

Researchers observed promising activity with these drugs in combination, both in cell lines and mouse models of DHL.

The team therefore believes the drugs could be repurposed to treat DHL, which currently has a dismal prognosis.

Study author Micol Ravà, PhD, of the European Institute of Oncology in Milan, Italy, and her colleagues noted that DHL is driven by the abnormal activation of MYC and BCL2. However, selective BCL2 inhibitors like venetoclax have failed to halt disease progression in DHL patients.

Seeking a way to sensitize DHL to BCL2 inhibitors, the researchers turned to tigecycline, which interferes with mitochondria to trigger a MYC-dependent cell death pathway.

The team found that tigecycline and venetoclax demonstrated synergy in 5 DHL cell lines. The drugs were synergistic in 3 cell lines—Karpas-422, SU-DHL-6, and DOHH-2—in which neither drug alone showed significant pro-apoptotic activity.

In 2 other cell lines—SU-DHL-4 and OCI-LY8—venetoclax was active when given alone, but its activity was enhanced by the addition of tigecycline.

In mouse models of DHL (using the human cell lines SU-DHL-6, DOHH-2, and OCI-LY8), each of the drugs alone were able to slow tumor progression somewhat.

However, combination tigecycline and venetoclax exhibited “strong antitumoral activity,” according to the researchers. In fact, the combination caused full disease regression in all 8 SU-DHL-6 mice and 3 of 9 OCI-LY8 mice.

Dr Ravà and her colleagues also found the combination produced “rapid and marked tumor regression” in mice with a patient-derived xenograft.

The researchers observed no toxicity when tigecycline and venetoclax were given at low doses. However, mice receiving more aggressive treatment had some inflammation in the liver and spleen. And some mice treated with high doses of tigecycline and venetoclax died within 1 week of treatment initiation.

Finally, Dr Ravà and her colleagues found that tigecycline and venetoclax each synergized with rituximab. The team therefore concluded that tigecycline and venetoclax “have the potential to reinforce rituximab-containing therapies in the clinic.”

Photo by Aaron Logan

Existing drugs could be combined to treat double-hit lymphoma (DHL), according to preclinical research published in Science Translational Medicine.

The drugs are tigecycline, an antibiotic, and venetoclax, a BCL2 inhibitor.

Researchers observed promising activity with these drugs in combination, both in cell lines and mouse models of DHL.

The team therefore believes the drugs could be repurposed to treat DHL, which currently has a dismal prognosis.

Study author Micol Ravà, PhD, of the European Institute of Oncology in Milan, Italy, and her colleagues noted that DHL is driven by the abnormal activation of MYC and BCL2. However, selective BCL2 inhibitors like venetoclax have failed to halt disease progression in DHL patients.

Seeking a way to sensitize DHL to BCL2 inhibitors, the researchers turned to tigecycline, which interferes with mitochondria to trigger a MYC-dependent cell death pathway.

The team found that tigecycline and venetoclax demonstrated synergy in 5 DHL cell lines. The drugs were synergistic in 3 cell lines—Karpas-422, SU-DHL-6, and DOHH-2—in which neither drug alone showed significant pro-apoptotic activity.

In 2 other cell lines—SU-DHL-4 and OCI-LY8—venetoclax was active when given alone, but its activity was enhanced by the addition of tigecycline.

In mouse models of DHL (using the human cell lines SU-DHL-6, DOHH-2, and OCI-LY8), each of the drugs alone were able to slow tumor progression somewhat.

However, combination tigecycline and venetoclax exhibited “strong antitumoral activity,” according to the researchers. In fact, the combination caused full disease regression in all 8 SU-DHL-6 mice and 3 of 9 OCI-LY8 mice.

Dr Ravà and her colleagues also found the combination produced “rapid and marked tumor regression” in mice with a patient-derived xenograft.

The researchers observed no toxicity when tigecycline and venetoclax were given at low doses. However, mice receiving more aggressive treatment had some inflammation in the liver and spleen. And some mice treated with high doses of tigecycline and venetoclax died within 1 week of treatment initiation.

Finally, Dr Ravà and her colleagues found that tigecycline and venetoclax each synergized with rituximab. The team therefore concluded that tigecycline and venetoclax “have the potential to reinforce rituximab-containing therapies in the clinic.”

Rituximab, a B-cell–depleting agent, has been found safe and effective in clinical trials of patients with multiple sclerosis and patients with rheumatoid arthritis, among others. However, progressive multifocal leukoencephalopathy (PML) and malignancies have been reported in patients with lymphoma, rheumatoid arthritis, and lupus who also received multiple immunosuppressive therapies, say researchers from Wayne State University in Michigan and University of Chicago in Illinois. In studies with ocrelizumab, which also depletes B-cells, adverse effects (AEs) have included infections, such as, herpes virus-associated infection, and neoplasms.

Although most research has found rituximab and ocrelizumab safe and effective, there is a “paucity of literature” on the safety of continuous B-cell depletion over a long period, the researchers say. They conducted a retrospective study involving 29 patients with immune-mediated neurologic disorders who received continuous cycles of rituximab infusions every 6 to 9 months for up to 7 years. Although small, the study was longer than the trials with ocrelizumab in multiple sclerosis . The mean duration of treatment was 51 months; with a mean of 9 treatment cycles.

The researchers found a low incidence of adverse events and prolonged rituximab-induced B-cell depletion did not lead to any life-threatening AEs, including malignancy. Overall, 32 AEs were reported. Four were serious; 3 were noted after 9 cycles (48 months), and 1 after 11 cycles (60 months). There were no cases of PML or malignancies. Repeated rituximab infusions were well tolerated The rate of AEs remained low over the 7-year observation period.

Source:
Memon AB, Javed A, Caon C, et al. PLoS ONE. 2018;13(1):e0190425.
doi: 10.1371/journal.pone.0190425.

Rituximab, a B-cell–depleting agent, has been found safe and effective in clinical trials of patients with multiple sclerosis and patients with rheumatoid arthritis, among others. However, progressive multifocal leukoencephalopathy (PML) and malignancies have been reported in patients with lymphoma, rheumatoid arthritis, and lupus who also received multiple immunosuppressive therapies, say researchers from Wayne State University in Michigan and University of Chicago in Illinois. In studies with ocrelizumab, which also depletes B-cells, adverse effects (AEs) have included infections, such as, herpes virus-associated infection, and neoplasms.

Although most research has found rituximab and ocrelizumab safe and effective, there is a “paucity of literature” on the safety of continuous B-cell depletion over a long period, the researchers say. They conducted a retrospective study involving 29 patients with immune-mediated neurologic disorders who received continuous cycles of rituximab infusions every 6 to 9 months for up to 7 years. Although small, the study was longer than the trials with ocrelizumab in multiple sclerosis . The mean duration of treatment was 51 months; with a mean of 9 treatment cycles.

The researchers found a low incidence of adverse events and prolonged rituximab-induced B-cell depletion did not lead to any life-threatening AEs, including malignancy. Overall, 32 AEs were reported. Four were serious; 3 were noted after 9 cycles (48 months), and 1 after 11 cycles (60 months). There were no cases of PML or malignancies. Repeated rituximab infusions were well tolerated The rate of AEs remained low over the 7-year observation period.

Source:
Memon AB, Javed A, Caon C, et al. PLoS ONE. 2018;13(1):e0190425.
doi: 10.1371/journal.pone.0190425.

Rituximab, a B-cell–depleting agent, has been found safe and effective in clinical trials of patients with multiple sclerosis and patients with rheumatoid arthritis, among others. However, progressive multifocal leukoencephalopathy (PML) and malignancies have been reported in patients with lymphoma, rheumatoid arthritis, and lupus who also received multiple immunosuppressive therapies, say researchers from Wayne State University in Michigan and University of Chicago in Illinois. In studies with ocrelizumab, which also depletes B-cells, adverse effects (AEs) have included infections, such as, herpes virus-associated infection, and neoplasms.

Although most research has found rituximab and ocrelizumab safe and effective, there is a “paucity of literature” on the safety of continuous B-cell depletion over a long period, the researchers say. They conducted a retrospective study involving 29 patients with immune-mediated neurologic disorders who received continuous cycles of rituximab infusions every 6 to 9 months for up to 7 years. Although small, the study was longer than the trials with ocrelizumab in multiple sclerosis . The mean duration of treatment was 51 months; with a mean of 9 treatment cycles.

The researchers found a low incidence of adverse events and prolonged rituximab-induced B-cell depletion did not lead to any life-threatening AEs, including malignancy. Overall, 32 AEs were reported. Four were serious; 3 were noted after 9 cycles (48 months), and 1 after 11 cycles (60 months). There were no cases of PML or malignancies. Repeated rituximab infusions were well tolerated The rate of AEs remained low over the 7-year observation period.

Source:
Memon AB, Javed A, Caon C, et al. PLoS ONE. 2018;13(1):e0190425.
doi: 10.1371/journal.pone.0190425.

A salmon-colored background and prominent serpentine blood vessels are two characteristic features of primary cutaneous B-cell lymphoma (PCBCL) that can be identified dermoscopically and may aid diagnosis, researchers say.

In the January issue of the Journal of the European Academy of Dermatology and Venereology, researchers reported the results of a retrospective observational study using the dermoscopic images of 58 biopsy-confirmed primary cutaneous B-cell lymphoma lesions in 51 patients.

While all the lesions were nonpigmented, 46 (79.3%) of them showed salmon- or yellow- to orange- colored background areas. More than three-quarters of the lesions also featured prominent blood vessels (77.6%), the majority of which were serpentine in nature.

Just over half of the PCBCL lesions (55%) featured both a salmon-colored background and serpentine blood vessels, while only 8.6% of the lesions showed neither feature.

Of the 58 lesions, the authors selected 17 to be evaluated by two dermoscopy experts who were blinded to the diagnosis. In 70.6% of these cases they included cutaneous B-cell lymphoma in the differential diagnosis, while other diagnoses included spider bite (58.8%), basal cell carcinoma (52.9%), amelanotic melanoma (47.1%), and scar/keloid (47.1%). Overall, the two experts did not agree on almost 30% of the suggested differential diagnoses.

“The presentation of cutaneous lymphomas in general and of PCBCLs in particular can be nonspecific, and a biopsy is essential for a definitive diagnosis,” wrote Shamir Geller, MD, of the dermatology service at Memorial Sloan Kettering Cancer Center, New York, and his coauthors.

The 58 PCBCLs analyzed were among 172 biopsy-proven PCBCL lesions in the study, which were newly diagnosed and whose pathology reports included the clinical differential diagnosis in the pathology requisition slip, in patients referred to the cancer center between 1992 and 2016. In only 16.3% of these cases, the clinician suspected cutaneous lymphoma. Skin malignancies were suspected in 54.7% of cases, with the leading diagnosis being basal cell carcinoma in 17.4% of cases. Basal cell carcinoma was considered in nearly one-third of lesions, particularly those on the head and neck.

Nonneoplastic conditions suspected by clinicians included cyst in 21.5% of cases, granulomatous processes in 15.7%, and infectious disease in 4.7%.

The authors commented that a low index of suspicion for skin lymphoma was seen regardless of the subtype or site.

“While dermoscopy offers a bridge between the naked eye examination and the histopathological appearance, cutaneous lymphoma is diagnosed on a cellular level using histopathology, immunohistochemistry and molecular studies,” they wrote. “Therefore, dermoscopy may serve as an ancillary tool in PCBCL; however, it cannot be diagnostic.”

The study was supported in part by the National Institutes of Health/National Cancer Institute Cancer Center. Dr. Geller is a recipient of a grant from the American Physicians and Friends For Medicine in Israel. No conflicts of interest were declared.

SOURCE: Geller S et al. J Eur Acad Dermatol Venereol. 2018 Jan;32(1):53-6.

A salmon-colored background and prominent serpentine blood vessels are two characteristic features of primary cutaneous B-cell lymphoma (PCBCL) that can be identified dermoscopically and may aid diagnosis, researchers say.

In the January issue of the Journal of the European Academy of Dermatology and Venereology, researchers reported the results of a retrospective observational study using the dermoscopic images of 58 biopsy-confirmed primary cutaneous B-cell lymphoma lesions in 51 patients.

While all the lesions were nonpigmented, 46 (79.3%) of them showed salmon- or yellow- to orange- colored background areas. More than three-quarters of the lesions also featured prominent blood vessels (77.6%), the majority of which were serpentine in nature.

Just over half of the PCBCL lesions (55%) featured both a salmon-colored background and serpentine blood vessels, while only 8.6% of the lesions showed neither feature.

Of the 58 lesions, the authors selected 17 to be evaluated by two dermoscopy experts who were blinded to the diagnosis. In 70.6% of these cases they included cutaneous B-cell lymphoma in the differential diagnosis, while other diagnoses included spider bite (58.8%), basal cell carcinoma (52.9%), amelanotic melanoma (47.1%), and scar/keloid (47.1%). Overall, the two experts did not agree on almost 30% of the suggested differential diagnoses.

“The presentation of cutaneous lymphomas in general and of PCBCLs in particular can be nonspecific, and a biopsy is essential for a definitive diagnosis,” wrote Shamir Geller, MD, of the dermatology service at Memorial Sloan Kettering Cancer Center, New York, and his coauthors.

The 58 PCBCLs analyzed were among 172 biopsy-proven PCBCL lesions in the study, which were newly diagnosed and whose pathology reports included the clinical differential diagnosis in the pathology requisition slip, in patients referred to the cancer center between 1992 and 2016. In only 16.3% of these cases, the clinician suspected cutaneous lymphoma. Skin malignancies were suspected in 54.7% of cases, with the leading diagnosis being basal cell carcinoma in 17.4% of cases. Basal cell carcinoma was considered in nearly one-third of lesions, particularly those on the head and neck.

Nonneoplastic conditions suspected by clinicians included cyst in 21.5% of cases, granulomatous processes in 15.7%, and infectious disease in 4.7%.

The authors commented that a low index of suspicion for skin lymphoma was seen regardless of the subtype or site.

“While dermoscopy offers a bridge between the naked eye examination and the histopathological appearance, cutaneous lymphoma is diagnosed on a cellular level using histopathology, immunohistochemistry and molecular studies,” they wrote. “Therefore, dermoscopy may serve as an ancillary tool in PCBCL; however, it cannot be diagnostic.”

The study was supported in part by the National Institutes of Health/National Cancer Institute Cancer Center. Dr. Geller is a recipient of a grant from the American Physicians and Friends For Medicine in Israel. No conflicts of interest were declared.

SOURCE: Geller S et al. J Eur Acad Dermatol Venereol. 2018 Jan;32(1):53-6.

A salmon-colored background and prominent serpentine blood vessels are two characteristic features of primary cutaneous B-cell lymphoma (PCBCL) that can be identified dermoscopically and may aid diagnosis, researchers say.

In the January issue of the Journal of the European Academy of Dermatology and Venereology, researchers reported the results of a retrospective observational study using the dermoscopic images of 58 biopsy-confirmed primary cutaneous B-cell lymphoma lesions in 51 patients.

While all the lesions were nonpigmented, 46 (79.3%) of them showed salmon- or yellow- to orange- colored background areas. More than three-quarters of the lesions also featured prominent blood vessels (77.6%), the majority of which were serpentine in nature.

Just over half of the PCBCL lesions (55%) featured both a salmon-colored background and serpentine blood vessels, while only 8.6% of the lesions showed neither feature.

Of the 58 lesions, the authors selected 17 to be evaluated by two dermoscopy experts who were blinded to the diagnosis. In 70.6% of these cases they included cutaneous B-cell lymphoma in the differential diagnosis, while other diagnoses included spider bite (58.8%), basal cell carcinoma (52.9%), amelanotic melanoma (47.1%), and scar/keloid (47.1%). Overall, the two experts did not agree on almost 30% of the suggested differential diagnoses.

“The presentation of cutaneous lymphomas in general and of PCBCLs in particular can be nonspecific, and a biopsy is essential for a definitive diagnosis,” wrote Shamir Geller, MD, of the dermatology service at Memorial Sloan Kettering Cancer Center, New York, and his coauthors.

The 58 PCBCLs analyzed were among 172 biopsy-proven PCBCL lesions in the study, which were newly diagnosed and whose pathology reports included the clinical differential diagnosis in the pathology requisition slip, in patients referred to the cancer center between 1992 and 2016. In only 16.3% of these cases, the clinician suspected cutaneous lymphoma. Skin malignancies were suspected in 54.7% of cases, with the leading diagnosis being basal cell carcinoma in 17.4% of cases. Basal cell carcinoma was considered in nearly one-third of lesions, particularly those on the head and neck.

Nonneoplastic conditions suspected by clinicians included cyst in 21.5% of cases, granulomatous processes in 15.7%, and infectious disease in 4.7%.

The authors commented that a low index of suspicion for skin lymphoma was seen regardless of the subtype or site.

“While dermoscopy offers a bridge between the naked eye examination and the histopathological appearance, cutaneous lymphoma is diagnosed on a cellular level using histopathology, immunohistochemistry and molecular studies,” they wrote. “Therefore, dermoscopy may serve as an ancillary tool in PCBCL; however, it cannot be diagnostic.”

The study was supported in part by the National Institutes of Health/National Cancer Institute Cancer Center. Dr. Geller is a recipient of a grant from the American Physicians and Friends For Medicine in Israel. No conflicts of interest were declared.

SOURCE: Geller S et al. J Eur Acad Dermatol Venereol. 2018 Jan;32(1):53-6.

Young women with primary Hodgkin lymphoma had an increased relative risk of estrogen receptor–positive breast cancer if they received radiotherapy and, irrespective of the type of treatment they got, an elevated risk of ER-negative breast cancer, based on results of a study based on patient records from 12 U.S. National Cancer Institute Surveillance, Epidemiology, and End Results registries.

Of 7,355 women diagnosed with primary Hodgkin lymphoma during 1973-2009 and aged 10-39 years, 377 patients subsequently were diagnosed with breast cancer at a mean age of 45 years; 57% of the cancers were ER positive, 34% were ER negative, and 9% had unknown/borderline ER status, Diana R. Withrow, PhD, and her colleagues from the radiation epidemiology branch, division of cancer epidemiology and genetics, National Cancer Institute reported in JAMA Oncology.

Survivors of Hodgkin lymphoma had a greater relative risk of ER-negative (standardized incidence ratio, 5.8; 95% confidence interval, 4.8-6.9) than ER-positive breast cancer (SIR, 3.1; 95% CI, 2.7-3.5; P less than .001 for the difference), the researchers wrote.

For ER-positive disease, the increased SIR was observed only among women who had received radiotherapy for their Hodgkin lymphoma (SIR, 3.9; 95% CI, 3.4-4.5). In this group, the SIR for ER-positive disease was lower in the chemotherapy than in the no/unknown chemotherapy group (P = .04), said the researchers.

The authors acknowledged that lack of information on patient risk factors such as family history, reproductive factors, and hormone therapy, as well as detailed treatment information such as radiotherapy dose, fields, specific chemotherapeutic agents, and subsequent therapy is a limitation of the current study. Further research, including comprehensive treatment records, will lead to a better understanding of the association between treatment and breast cancer subtype in these patients, the researchers concluded.

None of the study authors reported any conflicts of interest.

SOURCE: Withrow D et al. doi: 10.1001/jamaoncol.2017.4887.

Young women with primary Hodgkin lymphoma had an increased relative risk of estrogen receptor–positive breast cancer if they received radiotherapy and, irrespective of the type of treatment they got, an elevated risk of ER-negative breast cancer, based on results of a study based on patient records from 12 U.S. National Cancer Institute Surveillance, Epidemiology, and End Results registries.

Of 7,355 women diagnosed with primary Hodgkin lymphoma during 1973-2009 and aged 10-39 years, 377 patients subsequently were diagnosed with breast cancer at a mean age of 45 years; 57% of the cancers were ER positive, 34% were ER negative, and 9% had unknown/borderline ER status, Diana R. Withrow, PhD, and her colleagues from the radiation epidemiology branch, division of cancer epidemiology and genetics, National Cancer Institute reported in JAMA Oncology.

Survivors of Hodgkin lymphoma had a greater relative risk of ER-negative (standardized incidence ratio, 5.8; 95% confidence interval, 4.8-6.9) than ER-positive breast cancer (SIR, 3.1; 95% CI, 2.7-3.5; P less than .001 for the difference), the researchers wrote.

For ER-positive disease, the increased SIR was observed only among women who had received radiotherapy for their Hodgkin lymphoma (SIR, 3.9; 95% CI, 3.4-4.5). In this group, the SIR for ER-positive disease was lower in the chemotherapy than in the no/unknown chemotherapy group (P = .04), said the researchers.

The authors acknowledged that lack of information on patient risk factors such as family history, reproductive factors, and hormone therapy, as well as detailed treatment information such as radiotherapy dose, fields, specific chemotherapeutic agents, and subsequent therapy is a limitation of the current study. Further research, including comprehensive treatment records, will lead to a better understanding of the association between treatment and breast cancer subtype in these patients, the researchers concluded.

None of the study authors reported any conflicts of interest.

SOURCE: Withrow D et al. doi: 10.1001/jamaoncol.2017.4887.

Young women with primary Hodgkin lymphoma had an increased relative risk of estrogen receptor–positive breast cancer if they received radiotherapy and, irrespective of the type of treatment they got, an elevated risk of ER-negative breast cancer, based on results of a study based on patient records from 12 U.S. National Cancer Institute Surveillance, Epidemiology, and End Results registries.

Of 7,355 women diagnosed with primary Hodgkin lymphoma during 1973-2009 and aged 10-39 years, 377 patients subsequently were diagnosed with breast cancer at a mean age of 45 years; 57% of the cancers were ER positive, 34% were ER negative, and 9% had unknown/borderline ER status, Diana R. Withrow, PhD, and her colleagues from the radiation epidemiology branch, division of cancer epidemiology and genetics, National Cancer Institute reported in JAMA Oncology.

Survivors of Hodgkin lymphoma had a greater relative risk of ER-negative (standardized incidence ratio, 5.8; 95% confidence interval, 4.8-6.9) than ER-positive breast cancer (SIR, 3.1; 95% CI, 2.7-3.5; P less than .001 for the difference), the researchers wrote.

For ER-positive disease, the increased SIR was observed only among women who had received radiotherapy for their Hodgkin lymphoma (SIR, 3.9; 95% CI, 3.4-4.5). In this group, the SIR for ER-positive disease was lower in the chemotherapy than in the no/unknown chemotherapy group (P = .04), said the researchers.

The authors acknowledged that lack of information on patient risk factors such as family history, reproductive factors, and hormone therapy, as well as detailed treatment information such as radiotherapy dose, fields, specific chemotherapeutic agents, and subsequent therapy is a limitation of the current study. Further research, including comprehensive treatment records, will lead to a better understanding of the association between treatment and breast cancer subtype in these patients, the researchers concluded.

None of the study authors reported any conflicts of interest.

SOURCE: Withrow D et al. doi: 10.1001/jamaoncol.2017.4887.

Replacing bleomycin with brentuximab vedotin in the classic ABVD regimen improved a measure of progression-free survival and reduced pulmonary toxicity in patients with previously untreated Hodgkin lymphoma, findings from a randomized, phase 3 trial suggest.

Patients receiving brentuximab plus chemotherapy had a “statistically significant and clinically meaningful improvement” in the rate of modified progression-free survival, according to results published in the New England Journal of Medicine.

Pulmonary toxicity also occurred at a lower rate with the regimen containing brentuximab, an anti-CD30 antibody–drug conjugate, wrote Joseph M. Connors, MD, of the British Columbia Cancer Agency, Vancouver, and his coauthors.

Taken together, these findings suggest brentuximab vedotin and chemotherapy had “substantially less pulmonary toxicity and appears to be more effective for frontline treatment of advanced-stage classic Hodgkin lymphoma,” the researchers wrote.

Bleomycin is often omitted from later cycles of chemotherapy for patients with Hodgkin lymphoma due to pulmonary symptoms, and is sometimes associated with unpredictable or even fatal pulmonary toxicity, the researchers noted.

The brentuximab vedotin arm of the trial did have more neurotoxicity, which was largely reversible, and more myelotoxicity, though that “can be ameliorated with prophylactic granulocyte colony-stimulating factor (G-CSF),” the researchers wrote.

The study by Dr. Connors and colleagues, known as ECHELON-1, was an open-label, multicenter, randomized phase 3 trial including patients with previously untreated stage III or IV classic Hodgkin lymphoma. Among enrolled patients, 664 received brentuximab vedotin plus doxorubicin, vinblastine, and dacarbazine (AVD), and 670 received standard doxorubicin, bleomycin, vinblastine, and dacarbazine (ABVD).

The study used a primary endpoint of progression-free survival augmented to include not only time to disease progression or death, but also “modified progression,” which the researchers defined as evidence of noncomplete response at the end of frontline chemotherapy.

It is accepted practice to give more chemotherapy or radiotherapy in Hodgkin lymphoma patients who have a positive PET scan at the end of frontline therapy, since metabolically detectable residual disease reliably predicts imminent progression, Dr. Connors and coauthors wrote.

“In this context, the conventional endpoint of progression-free survival does not accurately assess the curative intent of frontline chemotherapy,” they wrote.

With a median 24.9-month follow-up, modified 2-year progression-free survival in the trial was 82.1% for patients receiving brentuximab plus AVD, versus 77.2% for ABVD (P = .03), a 23% risk reduction.

Pulmonary toxicity of grade 3 or higher occurred in less than 1% of patients in the brentuximab vedotin plus AVD arm of the trial and in 3% of the ABVD arm.

Neutropenia was reported in 58% and 45% in the brentuximab vedotin plus AVD and ABVD arms, respectively, while febrile neutropenia was reported in 19% and 8%, respectively.

In the brentuximab plus AVD group, the rate of febrile neutropenia was 11% for those patients who received primary prophylaxis with G-CSF, and 21% for patients who did not, the researchers noted.

Peripheral neuropathy was seen in 67% and 43% of the brentuximab vedotin plus AVD and ABVD arms, respectively, and about two-thirds of the patients in the brentuximab vedotin plus AVD arm had improvement or resolution at the final follow-up visit.

The study was supported by Millennium Pharmaceuticals and Seattle Genetics. Researchers reported ties to Millennium Pharmaceuticals, Takeda Pharmaceuticals, Seattle Genetics, and other companies.

hematologynews@frontlinemedcom.com

SOURCE: Connors JM et al. N Engl J Med. 2018;378:331-44.

Replacing bleomycin with brentuximab vedotin in the classic ABVD regimen improved a measure of progression-free survival and reduced pulmonary toxicity in patients with previously untreated Hodgkin lymphoma, findings from a randomized, phase 3 trial suggest.

Patients receiving brentuximab plus chemotherapy had a “statistically significant and clinically meaningful improvement” in the rate of modified progression-free survival, according to results published in the New England Journal of Medicine.

Pulmonary toxicity also occurred at a lower rate with the regimen containing brentuximab, an anti-CD30 antibody–drug conjugate, wrote Joseph M. Connors, MD, of the British Columbia Cancer Agency, Vancouver, and his coauthors.

Taken together, these findings suggest brentuximab vedotin and chemotherapy had “substantially less pulmonary toxicity and appears to be more effective for frontline treatment of advanced-stage classic Hodgkin lymphoma,” the researchers wrote.

Bleomycin is often omitted from later cycles of chemotherapy for patients with Hodgkin lymphoma due to pulmonary symptoms, and is sometimes associated with unpredictable or even fatal pulmonary toxicity, the researchers noted.

The brentuximab vedotin arm of the trial did have more neurotoxicity, which was largely reversible, and more myelotoxicity, though that “can be ameliorated with prophylactic granulocyte colony-stimulating factor (G-CSF),” the researchers wrote.

The study by Dr. Connors and colleagues, known as ECHELON-1, was an open-label, multicenter, randomized phase 3 trial including patients with previously untreated stage III or IV classic Hodgkin lymphoma. Among enrolled patients, 664 received brentuximab vedotin plus doxorubicin, vinblastine, and dacarbazine (AVD), and 670 received standard doxorubicin, bleomycin, vinblastine, and dacarbazine (ABVD).

The study used a primary endpoint of progression-free survival augmented to include not only time to disease progression or death, but also “modified progression,” which the researchers defined as evidence of noncomplete response at the end of frontline chemotherapy.

It is accepted practice to give more chemotherapy or radiotherapy in Hodgkin lymphoma patients who have a positive PET scan at the end of frontline therapy, since metabolically detectable residual disease reliably predicts imminent progression, Dr. Connors and coauthors wrote.

“In this context, the conventional endpoint of progression-free survival does not accurately assess the curative intent of frontline chemotherapy,” they wrote.

With a median 24.9-month follow-up, modified 2-year progression-free survival in the trial was 82.1% for patients receiving brentuximab plus AVD, versus 77.2% for ABVD (P = .03), a 23% risk reduction.

Pulmonary toxicity of grade 3 or higher occurred in less than 1% of patients in the brentuximab vedotin plus AVD arm of the trial and in 3% of the ABVD arm.

Neutropenia was reported in 58% and 45% in the brentuximab vedotin plus AVD and ABVD arms, respectively, while febrile neutropenia was reported in 19% and 8%, respectively.

In the brentuximab plus AVD group, the rate of febrile neutropenia was 11% for those patients who received primary prophylaxis with G-CSF, and 21% for patients who did not, the researchers noted.

Peripheral neuropathy was seen in 67% and 43% of the brentuximab vedotin plus AVD and ABVD arms, respectively, and about two-thirds of the patients in the brentuximab vedotin plus AVD arm had improvement or resolution at the final follow-up visit.

The study was supported by Millennium Pharmaceuticals and Seattle Genetics. Researchers reported ties to Millennium Pharmaceuticals, Takeda Pharmaceuticals, Seattle Genetics, and other companies.

hematologynews@frontlinemedcom.com

SOURCE: Connors JM et al. N Engl J Med. 2018;378:331-44.

Replacing bleomycin with brentuximab vedotin in the classic ABVD regimen improved a measure of progression-free survival and reduced pulmonary toxicity in patients with previously untreated Hodgkin lymphoma, findings from a randomized, phase 3 trial suggest.

Patients receiving brentuximab plus chemotherapy had a “statistically significant and clinically meaningful improvement” in the rate of modified progression-free survival, according to results published in the New England Journal of Medicine.

Pulmonary toxicity also occurred at a lower rate with the regimen containing brentuximab, an anti-CD30 antibody–drug conjugate, wrote Joseph M. Connors, MD, of the British Columbia Cancer Agency, Vancouver, and his coauthors.

Taken together, these findings suggest brentuximab vedotin and chemotherapy had “substantially less pulmonary toxicity and appears to be more effective for frontline treatment of advanced-stage classic Hodgkin lymphoma,” the researchers wrote.

Bleomycin is often omitted from later cycles of chemotherapy for patients with Hodgkin lymphoma due to pulmonary symptoms, and is sometimes associated with unpredictable or even fatal pulmonary toxicity, the researchers noted.

The brentuximab vedotin arm of the trial did have more neurotoxicity, which was largely reversible, and more myelotoxicity, though that “can be ameliorated with prophylactic granulocyte colony-stimulating factor (G-CSF),” the researchers wrote.

The study by Dr. Connors and colleagues, known as ECHELON-1, was an open-label, multicenter, randomized phase 3 trial including patients with previously untreated stage III or IV classic Hodgkin lymphoma. Among enrolled patients, 664 received brentuximab vedotin plus doxorubicin, vinblastine, and dacarbazine (AVD), and 670 received standard doxorubicin, bleomycin, vinblastine, and dacarbazine (ABVD).

The study used a primary endpoint of progression-free survival augmented to include not only time to disease progression or death, but also “modified progression,” which the researchers defined as evidence of noncomplete response at the end of frontline chemotherapy.

It is accepted practice to give more chemotherapy or radiotherapy in Hodgkin lymphoma patients who have a positive PET scan at the end of frontline therapy, since metabolically detectable residual disease reliably predicts imminent progression, Dr. Connors and coauthors wrote.

“In this context, the conventional endpoint of progression-free survival does not accurately assess the curative intent of frontline chemotherapy,” they wrote.

With a median 24.9-month follow-up, modified 2-year progression-free survival in the trial was 82.1% for patients receiving brentuximab plus AVD, versus 77.2% for ABVD (P = .03), a 23% risk reduction.

Pulmonary toxicity of grade 3 or higher occurred in less than 1% of patients in the brentuximab vedotin plus AVD arm of the trial and in 3% of the ABVD arm.

Neutropenia was reported in 58% and 45% in the brentuximab vedotin plus AVD and ABVD arms, respectively, while febrile neutropenia was reported in 19% and 8%, respectively.

In the brentuximab plus AVD group, the rate of febrile neutropenia was 11% for those patients who received primary prophylaxis with G-CSF, and 21% for patients who did not, the researchers noted.

Peripheral neuropathy was seen in 67% and 43% of the brentuximab vedotin plus AVD and ABVD arms, respectively, and about two-thirds of the patients in the brentuximab vedotin plus AVD arm had improvement or resolution at the final follow-up visit.

The study was supported by Millennium Pharmaceuticals and Seattle Genetics. Researchers reported ties to Millennium Pharmaceuticals, Takeda Pharmaceuticals, Seattle Genetics, and other companies.

hematologynews@frontlinemedcom.com

SOURCE: Connors JM et al. N Engl J Med. 2018;378:331-44.

Image from NIAID

Engineered T cells can produce durable responses in patients with Epstein Barr virus–positive (EBV+), relapsed/refractory Hodgkin lymphoma (HL), according to research published in the Journal of Clinical Oncology.

These T cells, known as DNRII-LSTs, produced responses in 4 of the 8 patients studied.

This included 3 complete responses (CRs), the longest of which has exceeded 7 years.

What’s more, these responses were achieved without the use of lymphodepleting chemotherapy.

“While the study is small, its findings are incredibly encouraging for our [patients’] families and for the cancer field,” said study author Catherine M. Bollard, MD, MBChB, of Children’s National Health System in Washington, DC.

To engineer the DNRII-LSTs, Dr Bollard and her colleagues forced expression of a dominant-negative TGF-beta receptor type 2 (DNRII) on LMP-specific T cells (LSTs), which are T cells directed to the EBV latency-associated antigens LMP-1 and LMP-2.

The goal of forcing DNRII expression was to enable the LSTs to resist the hostile tumor environment so they could seek out and kill the tumor cells.

Dr Bollard and her colleagues administered DNRII-LSTs to 8 patients with EBV+ HL. The patients ranged in age from 27 to 47.

Seven of the 8 patients had active disease at the time of DNRII-LST infusion. Two patients had stage IVB HL, 1 had stage IIIB, and 2 had stage IIB. Four patients had nodular-sclerosing HL.

Six patients had relapsed twice. The remaining 2 patients had relapsed 3 and 4 times, respectively. All patients had previously received an autologous stem cell transplant and a range of multi-agent chemotherapy regimens (eg, ABVD, R-ICE, and MOPP).

For this study, the patients received 2 to 12 infusions of DNRII-LSTs, at doses ranging from 2 × 10⁷ to 1.5 × 10⁸ cells/m².

Results

The researchers found that autologous DNRII-LSTs (given to 7 patients) did not cause autoimmunity, and donor-derived DNRII-LSTs (n=1) did not induce graft-vs-host disease.

The team also noted there were no toxicities resulting from cytokine release syndrome.

Four patients achieved a response to treatment—3 CRs and a partial response.

All complete responders are still in CR, but the partial responder progressed at 19 months and ultimately died of sepsis (2 years after the first dose of DNRII-LSTs).

The other 4 patients had stable disease (SD) for 4 months to 13 months after treatment with DNRII-LSTs.

One patient with SD died of disease progression 2 years after receiving DNRII-LSTs, and another died of transplant complications less than 2 years after the last dose of DNRII-LSTs.

One patient with SD went on to receive additional therapy and is still alive more than 6 years after receiving DNRII-LSTs (currently receiving nivolumab). Another SD patient went on to receive additional therapy, achieved a CR, and is still alive.

One of the patients who achieved a CR to DNRII-LSTs remains in CR more than 7 years after the last dose. Another patient’s CR has exceeded 2 years, and another’s has exceeded 5 years.

All 3 of these patients received doses of 2 × 10⁷ cells/m². The patients with the longest and shortest CRs each received 2 infusions of DNRII-LSTs. The patient with the CR exceeding 5 years received 12 infusions.

“These results come 18 years after this revolutionary approach was first conceptualized,” Dr Bollard said. “I started work in this area in 2000. At that time, the oncology community had little enthusiasm for the use of T-cell therapies to treat cancer.”

“Even then, when T-cell therapy was in its relative infancy, some research institutions began to see more than 90% complete responses and cure rates in some settings. This most recent study points to the potential of specialized T cells to fight even more types of immune-evading tumors.”

Image from NIAID

Engineered T cells can produce durable responses in patients with Epstein Barr virus–positive (EBV+), relapsed/refractory Hodgkin lymphoma (HL), according to research published in the Journal of Clinical Oncology.

These T cells, known as DNRII-LSTs, produced responses in 4 of the 8 patients studied.

This included 3 complete responses (CRs), the longest of which has exceeded 7 years.

What’s more, these responses were achieved without the use of lymphodepleting chemotherapy.

“While the study is small, its findings are incredibly encouraging for our [patients’] families and for the cancer field,” said study author Catherine M. Bollard, MD, MBChB, of Children’s National Health System in Washington, DC.

To engineer the DNRII-LSTs, Dr Bollard and her colleagues forced expression of a dominant-negative TGF-beta receptor type 2 (DNRII) on LMP-specific T cells (LSTs), which are T cells directed to the EBV latency-associated antigens LMP-1 and LMP-2.

The goal of forcing DNRII expression was to enable the LSTs to resist the hostile tumor environment so they could seek out and kill the tumor cells.

Dr Bollard and her colleagues administered DNRII-LSTs to 8 patients with EBV+ HL. The patients ranged in age from 27 to 47.

Seven of the 8 patients had active disease at the time of DNRII-LST infusion. Two patients had stage IVB HL, 1 had stage IIIB, and 2 had stage IIB. Four patients had nodular-sclerosing HL.

Six patients had relapsed twice. The remaining 2 patients had relapsed 3 and 4 times, respectively. All patients had previously received an autologous stem cell transplant and a range of multi-agent chemotherapy regimens (eg, ABVD, R-ICE, and MOPP).

For this study, the patients received 2 to 12 infusions of DNRII-LSTs, at doses ranging from 2 × 10⁷ to 1.5 × 10⁸ cells/m².

Results

The researchers found that autologous DNRII-LSTs (given to 7 patients) did not cause autoimmunity, and donor-derived DNRII-LSTs (n=1) did not induce graft-vs-host disease.

The team also noted there were no toxicities resulting from cytokine release syndrome.

Four patients achieved a response to treatment—3 CRs and a partial response.

All complete responders are still in CR, but the partial responder progressed at 19 months and ultimately died of sepsis (2 years after the first dose of DNRII-LSTs).

The other 4 patients had stable disease (SD) for 4 months to 13 months after treatment with DNRII-LSTs.

One patient with SD died of disease progression 2 years after receiving DNRII-LSTs, and another died of transplant complications less than 2 years after the last dose of DNRII-LSTs.

One patient with SD went on to receive additional therapy and is still alive more than 6 years after receiving DNRII-LSTs (currently receiving nivolumab). Another SD patient went on to receive additional therapy, achieved a CR, and is still alive.

One of the patients who achieved a CR to DNRII-LSTs remains in CR more than 7 years after the last dose. Another patient’s CR has exceeded 2 years, and another’s has exceeded 5 years.

All 3 of these patients received doses of 2 × 10⁷ cells/m². The patients with the longest and shortest CRs each received 2 infusions of DNRII-LSTs. The patient with the CR exceeding 5 years received 12 infusions.

“These results come 18 years after this revolutionary approach was first conceptualized,” Dr Bollard said. “I started work in this area in 2000. At that time, the oncology community had little enthusiasm for the use of T-cell therapies to treat cancer.”

“Even then, when T-cell therapy was in its relative infancy, some research institutions began to see more than 90% complete responses and cure rates in some settings. This most recent study points to the potential of specialized T cells to fight even more types of immune-evading tumors.”

Image from NIAID

Engineered T cells can produce durable responses in patients with Epstein Barr virus–positive (EBV+), relapsed/refractory Hodgkin lymphoma (HL), according to research published in the Journal of Clinical Oncology.

These T cells, known as DNRII-LSTs, produced responses in 4 of the 8 patients studied.

This included 3 complete responses (CRs), the longest of which has exceeded 7 years.

What’s more, these responses were achieved without the use of lymphodepleting chemotherapy.

“While the study is small, its findings are incredibly encouraging for our [patients’] families and for the cancer field,” said study author Catherine M. Bollard, MD, MBChB, of Children’s National Health System in Washington, DC.

To engineer the DNRII-LSTs, Dr Bollard and her colleagues forced expression of a dominant-negative TGF-beta receptor type 2 (DNRII) on LMP-specific T cells (LSTs), which are T cells directed to the EBV latency-associated antigens LMP-1 and LMP-2.

The goal of forcing DNRII expression was to enable the LSTs to resist the hostile tumor environment so they could seek out and kill the tumor cells.

Dr Bollard and her colleagues administered DNRII-LSTs to 8 patients with EBV+ HL. The patients ranged in age from 27 to 47.

Seven of the 8 patients had active disease at the time of DNRII-LST infusion. Two patients had stage IVB HL, 1 had stage IIIB, and 2 had stage IIB. Four patients had nodular-sclerosing HL.

Six patients had relapsed twice. The remaining 2 patients had relapsed 3 and 4 times, respectively. All patients had previously received an autologous stem cell transplant and a range of multi-agent chemotherapy regimens (eg, ABVD, R-ICE, and MOPP).

For this study, the patients received 2 to 12 infusions of DNRII-LSTs, at doses ranging from 2 × 10⁷ to 1.5 × 10⁸ cells/m².

Results

The researchers found that autologous DNRII-LSTs (given to 7 patients) did not cause autoimmunity, and donor-derived DNRII-LSTs (n=1) did not induce graft-vs-host disease.

The team also noted there were no toxicities resulting from cytokine release syndrome.

Four patients achieved a response to treatment—3 CRs and a partial response.

All complete responders are still in CR, but the partial responder progressed at 19 months and ultimately died of sepsis (2 years after the first dose of DNRII-LSTs).

The other 4 patients had stable disease (SD) for 4 months to 13 months after treatment with DNRII-LSTs.

One patient with SD died of disease progression 2 years after receiving DNRII-LSTs, and another died of transplant complications less than 2 years after the last dose of DNRII-LSTs.

One patient with SD went on to receive additional therapy and is still alive more than 6 years after receiving DNRII-LSTs (currently receiving nivolumab). Another SD patient went on to receive additional therapy, achieved a CR, and is still alive.

One of the patients who achieved a CR to DNRII-LSTs remains in CR more than 7 years after the last dose. Another patient’s CR has exceeded 2 years, and another’s has exceeded 5 years.

All 3 of these patients received doses of 2 × 10⁷ cells/m². The patients with the longest and shortest CRs each received 2 infusions of DNRII-LSTs. The patient with the CR exceeding 5 years received 12 infusions.

“These results come 18 years after this revolutionary approach was first conceptualized,” Dr Bollard said. “I started work in this area in 2000. At that time, the oncology community had little enthusiasm for the use of T-cell therapies to treat cancer.”

“Even then, when T-cell therapy was in its relative infancy, some research institutions began to see more than 90% complete responses and cure rates in some settings. This most recent study points to the potential of specialized T cells to fight even more types of immune-evading tumors.”

Photo by Rhoda Baer

Treatment costs are the greatest threat to the growth of cancer programs, according to a survey of nearly 300 cancer program administrators and providers.

Sixty-eight percent of survey respondents said treatment costs were among the biggest threats to future cancer program growth at their organization.

Other top threats to growth included physician alignment around services and program goals—cited by 47% of respondents—and changes in healthcare coverage—cited by 46%.

This survey—the “2017 Trending Now in Cancer Care Survey”—was conducted by the Association of Community Cancer Centers (ACCC) and Advisory Board’s Oncology Roundtable. It was supported by Pfizer Oncology.

The survey was distributed via email on July 24, 2017. Respondents included 293 cancer program administrators and providers from 209 institutions. They submitted responses over 6 weeks.

Respondents identified the following “biggest threats” to cancer program growth:

• Cost of drugs and/or new treatment modalities—68%
• Physician alignment around services and program goals—47%
• Changes in healthcare coverage—46%
• Cuts to fee-for-service reimbursement—44%
• Shifting reimbursement to value-based care—43%
• Marketplace competition—35%
• Workforce planning (eg, managing staff shortages)—34%
• Network strategy and integration—33%
• Site of care policies issued by private payers—27%
• Access to capital—26%
• Quality reporting requirements—22%
• Health information technology—21%
• Other—6%.

When asked to identify their greatest opportunities for cost savings, respondents overwhelmingly pointed toward clinical standardization (63%) and drugs (62%).

Other opportunities included:

• Supplies—28%
• Capital expenses (eg, imaging technology)—24%
• Non-clinical staff (eg, billing and coding specialists)—22%
• Technology maintenance—20%
• Clinical staff—16%
• Retail pharmacy—14%
• Clinical research—10%
• Support services (eg, acupuncture)—9%
• Other—4%.

Respondents also said the investments most likely to yield a return for their cancer program were:

• Increasing the number of sub-specialists (eg, breast surgeons)—59%
• Marketing—41%
• Specialty pharmacy—36%
• Increasing the number of general oncology physicians—34%
• Screening services (eg, mobile screening unit)—29%
• Capital investments—24%
• Clinical research—16%
• Support services—15%
• Retail pharmacy—14%
• Building upgrades—14%.

More details on the “2017 Trending Now in Cancer Care Survey” can be found on the ACCC website.

Photo by Rhoda Baer

Treatment costs are the greatest threat to the growth of cancer programs, according to a survey of nearly 300 cancer program administrators and providers.

Sixty-eight percent of survey respondents said treatment costs were among the biggest threats to future cancer program growth at their organization.

Other top threats to growth included physician alignment around services and program goals—cited by 47% of respondents—and changes in healthcare coverage—cited by 46%.

This survey—the “2017 Trending Now in Cancer Care Survey”—was conducted by the Association of Community Cancer Centers (ACCC) and Advisory Board’s Oncology Roundtable. It was supported by Pfizer Oncology.

The survey was distributed via email on July 24, 2017. Respondents included 293 cancer program administrators and providers from 209 institutions. They submitted responses over 6 weeks.

Respondents identified the following “biggest threats” to cancer program growth:

• Cost of drugs and/or new treatment modalities—68%
• Physician alignment around services and program goals—47%
• Changes in healthcare coverage—46%
• Cuts to fee-for-service reimbursement—44%
• Shifting reimbursement to value-based care—43%
• Marketplace competition—35%
• Workforce planning (eg, managing staff shortages)—34%
• Network strategy and integration—33%
• Site of care policies issued by private payers—27%
• Access to capital—26%
• Quality reporting requirements—22%
• Health information technology—21%
• Other—6%.

When asked to identify their greatest opportunities for cost savings, respondents overwhelmingly pointed toward clinical standardization (63%) and drugs (62%).

Other opportunities included:

• Supplies—28%
• Capital expenses (eg, imaging technology)—24%
• Non-clinical staff (eg, billing and coding specialists)—22%
• Technology maintenance—20%
• Clinical staff—16%
• Retail pharmacy—14%
• Clinical research—10%
• Support services (eg, acupuncture)—9%
• Other—4%.

Respondents also said the investments most likely to yield a return for their cancer program were:

• Increasing the number of sub-specialists (eg, breast surgeons)—59%
• Marketing—41%
• Specialty pharmacy—36%
• Increasing the number of general oncology physicians—34%
• Screening services (eg, mobile screening unit)—29%
• Capital investments—24%
• Clinical research—16%
• Support services—15%
• Retail pharmacy—14%
• Building upgrades—14%.

More details on the “2017 Trending Now in Cancer Care Survey” can be found on the ACCC website.

Photo by Rhoda Baer

Treatment costs are the greatest threat to the growth of cancer programs, according to a survey of nearly 300 cancer program administrators and providers.

Sixty-eight percent of survey respondents said treatment costs were among the biggest threats to future cancer program growth at their organization.

Other top threats to growth included physician alignment around services and program goals—cited by 47% of respondents—and changes in healthcare coverage—cited by 46%.

This survey—the “2017 Trending Now in Cancer Care Survey”—was conducted by the Association of Community Cancer Centers (ACCC) and Advisory Board’s Oncology Roundtable. It was supported by Pfizer Oncology.

The survey was distributed via email on July 24, 2017. Respondents included 293 cancer program administrators and providers from 209 institutions. They submitted responses over 6 weeks.

Respondents identified the following “biggest threats” to cancer program growth:

• Cost of drugs and/or new treatment modalities—68%
• Physician alignment around services and program goals—47%
• Changes in healthcare coverage—46%
• Cuts to fee-for-service reimbursement—44%
• Shifting reimbursement to value-based care—43%
• Marketplace competition—35%
• Workforce planning (eg, managing staff shortages)—34%
• Network strategy and integration—33%
• Site of care policies issued by private payers—27%
• Access to capital—26%
• Quality reporting requirements—22%
• Health information technology—21%
• Other—6%.

When asked to identify their greatest opportunities for cost savings, respondents overwhelmingly pointed toward clinical standardization (63%) and drugs (62%).

Other opportunities included:

• Supplies—28%
• Capital expenses (eg, imaging technology)—24%
• Non-clinical staff (eg, billing and coding specialists)—22%
• Technology maintenance—20%
• Clinical staff—16%
• Retail pharmacy—14%
• Clinical research—10%
• Support services (eg, acupuncture)—9%
• Other—4%.

Respondents also said the investments most likely to yield a return for their cancer program were:

• Increasing the number of sub-specialists (eg, breast surgeons)—59%
• Marketing—41%
• Specialty pharmacy—36%
• Increasing the number of general oncology physicians—34%
• Screening services (eg, mobile screening unit)—29%
• Capital investments—24%
• Clinical research—16%
• Support services—15%
• Retail pharmacy—14%
• Building upgrades—14%.

More details on the “2017 Trending Now in Cancer Care Survey” can be found on the ACCC website.

of Western Australia

Researchers say they have developed a new technique for assessing chromosomal abnormalities in chronic lymphocytic leukemia (CLL).

The team believes their method, called immuno-flowFISH, could be used at the time of CLL diagnosis for disease stratification and after treatment to assess residual disease.

Kathryn A. Fuller, PhD, of The University of Western Australia in Crawley, Australia, and her colleagues described immuno-flowFISH in the journal Methods.

The name “immuno-flowFISH” acknowledges what has been incorporated into this technology.

“Immuno” recognizes that immunology testing is used to identify the CLL cells. “Flow” is used because the machine is an imaging flow cytometer. And “FISH” is the test that identifies the chromosomes inside the cells.

The researchers said they found that immuno-flowFISH could detect trisomic chromosomal abnormalities in cells with the phenotype of CLL.

And immuno-flowFISH provided greater specificity and sensitivity than standard FISH.

In particular, the researchers were able to analyze 10,000 to 20,000 cells in each sample, which is 100 to 200 times greater than traditional FISH methods.

“The imaging cytometer can analyze samples at a rate of up to 2000 cells per second, which means we can investigate a large number of cells in a relatively short amount of time, giving us greater sensitivity,” Dr Fuller said.

“This immuno-flowFISH method is an exciting development in personalizing pathology testing for leukemia,” added study author Wendy N. Erber, MD, DPhil, PhD, of The University of Western Australia.

Dr Erber and her colleagues are now expanding immuno-flowFISH so it can be applied to other malignancies as well.

of Western Australia

Researchers say they have developed a new technique for assessing chromosomal abnormalities in chronic lymphocytic leukemia (CLL).

The team believes their method, called immuno-flowFISH, could be used at the time of CLL diagnosis for disease stratification and after treatment to assess residual disease.

Kathryn A. Fuller, PhD, of The University of Western Australia in Crawley, Australia, and her colleagues described immuno-flowFISH in the journal Methods.

The name “immuno-flowFISH” acknowledges what has been incorporated into this technology.

“Immuno” recognizes that immunology testing is used to identify the CLL cells. “Flow” is used because the machine is an imaging flow cytometer. And “FISH” is the test that identifies the chromosomes inside the cells.

The researchers said they found that immuno-flowFISH could detect trisomic chromosomal abnormalities in cells with the phenotype of CLL.

And immuno-flowFISH provided greater specificity and sensitivity than standard FISH.

In particular, the researchers were able to analyze 10,000 to 20,000 cells in each sample, which is 100 to 200 times greater than traditional FISH methods.

“The imaging cytometer can analyze samples at a rate of up to 2000 cells per second, which means we can investigate a large number of cells in a relatively short amount of time, giving us greater sensitivity,” Dr Fuller said.

“This immuno-flowFISH method is an exciting development in personalizing pathology testing for leukemia,” added study author Wendy N. Erber, MD, DPhil, PhD, of The University of Western Australia.

Dr Erber and her colleagues are now expanding immuno-flowFISH so it can be applied to other malignancies as well.

of Western Australia

Researchers say they have developed a new technique for assessing chromosomal abnormalities in chronic lymphocytic leukemia (CLL).

The team believes their method, called immuno-flowFISH, could be used at the time of CLL diagnosis for disease stratification and after treatment to assess residual disease.

Kathryn A. Fuller, PhD, of The University of Western Australia in Crawley, Australia, and her colleagues described immuno-flowFISH in the journal Methods.

The name “immuno-flowFISH” acknowledges what has been incorporated into this technology.

“Immuno” recognizes that immunology testing is used to identify the CLL cells. “Flow” is used because the machine is an imaging flow cytometer. And “FISH” is the test that identifies the chromosomes inside the cells.

The researchers said they found that immuno-flowFISH could detect trisomic chromosomal abnormalities in cells with the phenotype of CLL.

And immuno-flowFISH provided greater specificity and sensitivity than standard FISH.

In particular, the researchers were able to analyze 10,000 to 20,000 cells in each sample, which is 100 to 200 times greater than traditional FISH methods.

“The imaging cytometer can analyze samples at a rate of up to 2000 cells per second, which means we can investigate a large number of cells in a relatively short amount of time, giving us greater sensitivity,” Dr Fuller said.

“This immuno-flowFISH method is an exciting development in personalizing pathology testing for leukemia,” added study author Wendy N. Erber, MD, DPhil, PhD, of The University of Western Australia.

Dr Erber and her colleagues are now expanding immuno-flowFISH so it can be applied to other malignancies as well.

Photo from Business Wire

The European Commission (EC) has extended the conditional marketing authorization for brentuximab vedotin (Adcetris®).

The drug is now approved for use in adults with CD30-positive cutaneous T-cell lymphoma (CTCL) who have received at least 1 prior systemic therapy.

Brentuximab vedotin can be marketed for this indication in the member states of the European Union as well as in Norway, Liechtenstein, and Iceland.

Conditional marketing authorization from the EC is valid for 1 year and is reviewed annually.

With conditional authorization, drug developers are required to provide comprehensive data confirming a drug’s benefit-risk balance is positive. Once these data are available, a conditional marketing authorization may be converted to a standard marketing authorization.

Drugs are eligible for conditional marketing authorization if they are designated as orphan medicines, intended for use in emergency situations, or designed to treat, prevent, or diagnose seriously debilitating or life-threatening diseases.

The EC previously granted brentuximab vedotin conditional marketing authorization for the treatment of:

• Adults with CD30+ Hodgkin lymphoma who are at an increased risk of relapse or progression following autologous hematopoietic stem cell transplant (auto-HSCT)
• Adults with relapsed or refractory CD30+ Hodgkin lymphoma after auto-HSCT or after at least 2 prior therapies when auto-HSCT or multi-agent chemotherapy is not a treatment option
• Adults with relapsed or refractory systemic anaplastic large-cell lymphoma.

Brentuximab vedotin is under joint development by Seattle Genetics and Takeda Pharmaceutical Company Limited.

Phase 3 data

The EC’s latest authorization for brentuximab vedotin is based on data from the phase 3 ALCANZA trial.

Updated results from ALCANZA were presented at the 2017 ASH Annual Meeting in December. Results were previously presented at the 9th Annual T-cell Lymphoma Forum in January 2017 and published in The Lancet in June 2017.

The trial included 128 evaluable patients with CD30-positive CTCL who had received at least 1 prior systemic therapy.

Sixty-four patients were assigned to receive brentuximab vedotin, and 64 were assigned to receive the investigator’s choice of methotrexate or bexarotene (control arm). Patients received treatment for up to 1 year.

For the update, the median follow-up was 33.9 months.

There was a significant improvement in the rate of objective response lasting at least 4 months (ORR4) in the brentuximab vedotin arm compared to the control arm. The ORR4 was 60.9% and 7.8%, respectively (P<0.001). The complete response rate was 18.8% and 0%, respectively (P<0.001).

The median progression-free survival was 15.8 months in the brentuximab vedotin arm and 3.6 months in the control arm (hazard ratio=0.373; 95% CI, 0.245-0.569; P<0.001).

At time of analysis, 73% of patients in the brentuximab vedotin arm and 75% in the control arm had received 1 or more subsequent skin-directed or systemic therapies. The median time to next treatment was 14.2 months in the brentuximab vedotin arm and 6.1 months in the control arm (P<0.001).

Peripheral neuropathy was the most commonly reported adverse event in patients who received brentuximab vedotin. The incidence was 67% in these patients and 6% in controls.

In the brentuximab arm, 86% of patients reported resolution or improvement in peripheral neuropathy. Eighteen patients had ongoing peripheral neuropathy events, including 15 patients with grade 1 and 3 patients with grade 2 events.

Photo from Business Wire

The European Commission (EC) has extended the conditional marketing authorization for brentuximab vedotin (Adcetris®).

The drug is now approved for use in adults with CD30-positive cutaneous T-cell lymphoma (CTCL) who have received at least 1 prior systemic therapy.

Brentuximab vedotin can be marketed for this indication in the member states of the European Union as well as in Norway, Liechtenstein, and Iceland.

Conditional marketing authorization from the EC is valid for 1 year and is reviewed annually.

With conditional authorization, drug developers are required to provide comprehensive data confirming a drug’s benefit-risk balance is positive. Once these data are available, a conditional marketing authorization may be converted to a standard marketing authorization.

Drugs are eligible for conditional marketing authorization if they are designated as orphan medicines, intended for use in emergency situations, or designed to treat, prevent, or diagnose seriously debilitating or life-threatening diseases.

The EC previously granted brentuximab vedotin conditional marketing authorization for the treatment of:

• Adults with CD30+ Hodgkin lymphoma who are at an increased risk of relapse or progression following autologous hematopoietic stem cell transplant (auto-HSCT)
• Adults with relapsed or refractory CD30+ Hodgkin lymphoma after auto-HSCT or after at least 2 prior therapies when auto-HSCT or multi-agent chemotherapy is not a treatment option
• Adults with relapsed or refractory systemic anaplastic large-cell lymphoma.

Brentuximab vedotin is under joint development by Seattle Genetics and Takeda Pharmaceutical Company Limited.

Phase 3 data

The EC’s latest authorization for brentuximab vedotin is based on data from the phase 3 ALCANZA trial.

Updated results from ALCANZA were presented at the 2017 ASH Annual Meeting in December. Results were previously presented at the 9th Annual T-cell Lymphoma Forum in January 2017 and published in The Lancet in June 2017.

The trial included 128 evaluable patients with CD30-positive CTCL who had received at least 1 prior systemic therapy.

Sixty-four patients were assigned to receive brentuximab vedotin, and 64 were assigned to receive the investigator’s choice of methotrexate or bexarotene (control arm). Patients received treatment for up to 1 year.

For the update, the median follow-up was 33.9 months.

There was a significant improvement in the rate of objective response lasting at least 4 months (ORR4) in the brentuximab vedotin arm compared to the control arm. The ORR4 was 60.9% and 7.8%, respectively (P<0.001). The complete response rate was 18.8% and 0%, respectively (P<0.001).

The median progression-free survival was 15.8 months in the brentuximab vedotin arm and 3.6 months in the control arm (hazard ratio=0.373; 95% CI, 0.245-0.569; P<0.001).

At time of analysis, 73% of patients in the brentuximab vedotin arm and 75% in the control arm had received 1 or more subsequent skin-directed or systemic therapies. The median time to next treatment was 14.2 months in the brentuximab vedotin arm and 6.1 months in the control arm (P<0.001).

Peripheral neuropathy was the most commonly reported adverse event in patients who received brentuximab vedotin. The incidence was 67% in these patients and 6% in controls.

In the brentuximab arm, 86% of patients reported resolution or improvement in peripheral neuropathy. Eighteen patients had ongoing peripheral neuropathy events, including 15 patients with grade 1 and 3 patients with grade 2 events.

Photo from Business Wire

The European Commission (EC) has extended the conditional marketing authorization for brentuximab vedotin (Adcetris®).

The drug is now approved for use in adults with CD30-positive cutaneous T-cell lymphoma (CTCL) who have received at least 1 prior systemic therapy.

Brentuximab vedotin can be marketed for this indication in the member states of the European Union as well as in Norway, Liechtenstein, and Iceland.

Conditional marketing authorization from the EC is valid for 1 year and is reviewed annually.

With conditional authorization, drug developers are required to provide comprehensive data confirming a drug’s benefit-risk balance is positive. Once these data are available, a conditional marketing authorization may be converted to a standard marketing authorization.

Drugs are eligible for conditional marketing authorization if they are designated as orphan medicines, intended for use in emergency situations, or designed to treat, prevent, or diagnose seriously debilitating or life-threatening diseases.

The EC previously granted brentuximab vedotin conditional marketing authorization for the treatment of:

• Adults with CD30+ Hodgkin lymphoma who are at an increased risk of relapse or progression following autologous hematopoietic stem cell transplant (auto-HSCT)
• Adults with relapsed or refractory CD30+ Hodgkin lymphoma after auto-HSCT or after at least 2 prior therapies when auto-HSCT or multi-agent chemotherapy is not a treatment option
• Adults with relapsed or refractory systemic anaplastic large-cell lymphoma.

Brentuximab vedotin is under joint development by Seattle Genetics and Takeda Pharmaceutical Company Limited.

Phase 3 data

The EC’s latest authorization for brentuximab vedotin is based on data from the phase 3 ALCANZA trial.

Updated results from ALCANZA were presented at the 2017 ASH Annual Meeting in December. Results were previously presented at the 9th Annual T-cell Lymphoma Forum in January 2017 and published in The Lancet in June 2017.

The trial included 128 evaluable patients with CD30-positive CTCL who had received at least 1 prior systemic therapy.

Sixty-four patients were assigned to receive brentuximab vedotin, and 64 were assigned to receive the investigator’s choice of methotrexate or bexarotene (control arm). Patients received treatment for up to 1 year.

For the update, the median follow-up was 33.9 months.

There was a significant improvement in the rate of objective response lasting at least 4 months (ORR4) in the brentuximab vedotin arm compared to the control arm. The ORR4 was 60.9% and 7.8%, respectively (P<0.001). The complete response rate was 18.8% and 0%, respectively (P<0.001).

The median progression-free survival was 15.8 months in the brentuximab vedotin arm and 3.6 months in the control arm (hazard ratio=0.373; 95% CI, 0.245-0.569; P<0.001).

At time of analysis, 73% of patients in the brentuximab vedotin arm and 75% in the control arm had received 1 or more subsequent skin-directed or systemic therapies. The median time to next treatment was 14.2 months in the brentuximab vedotin arm and 6.1 months in the control arm (P<0.001).

Peripheral neuropathy was the most commonly reported adverse event in patients who received brentuximab vedotin. The incidence was 67% in these patients and 6% in controls.

In the brentuximab arm, 86% of patients reported resolution or improvement in peripheral neuropathy. Eighteen patients had ongoing peripheral neuropathy events, including 15 patients with grade 1 and 3 patients with grade 2 events.